| 1 | /* Copyright (c) 2006-2007 Jonas Fonseca <fonseca@diku.dk> |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or |
| 4 | * modify it under the terms of the GNU General Public License as |
| 5 | * published by the Free Software Foundation; either version 2 of |
| 6 | * the License, or (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | */ |
| 13 | |
| 14 | #ifdef HAVE_CONFIG_H |
| 15 | #include "config.h" |
| 16 | #endif |
| 17 | |
| 18 | #ifndef TIG_VERSION |
| 19 | #define TIG_VERSION "unknown-version" |
| 20 | #endif |
| 21 | |
| 22 | #ifndef DEBUG |
| 23 | #define NDEBUG |
| 24 | #endif |
| 25 | |
| 26 | #include <assert.h> |
| 27 | #include <errno.h> |
| 28 | #include <ctype.h> |
| 29 | #include <signal.h> |
| 30 | #include <stdarg.h> |
| 31 | #include <stdio.h> |
| 32 | #include <stdlib.h> |
| 33 | #include <string.h> |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/stat.h> |
| 36 | #include <unistd.h> |
| 37 | #include <time.h> |
| 38 | |
| 39 | #include <regex.h> |
| 40 | |
| 41 | #include <locale.h> |
| 42 | #include <langinfo.h> |
| 43 | #include <iconv.h> |
| 44 | |
| 45 | #include <curses.h> |
| 46 | |
| 47 | #if __GNUC__ >= 3 |
| 48 | #define __NORETURN __attribute__((__noreturn__)) |
| 49 | #else |
| 50 | #define __NORETURN |
| 51 | #endif |
| 52 | |
| 53 | static void __NORETURN die(const char *err, ...); |
| 54 | static void warn(const char *msg, ...); |
| 55 | static void report(const char *msg, ...); |
| 56 | static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t)); |
| 57 | static void set_nonblocking_input(bool loading); |
| 58 | static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed); |
| 59 | |
| 60 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) |
| 61 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) |
| 62 | |
| 63 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
| 64 | #define STRING_SIZE(x) (sizeof(x) - 1) |
| 65 | |
| 66 | #define SIZEOF_STR 1024 /* Default string size. */ |
| 67 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
| 68 | #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */ |
| 69 | |
| 70 | /* Revision graph */ |
| 71 | |
| 72 | #define REVGRAPH_INIT 'I' |
| 73 | #define REVGRAPH_MERGE 'M' |
| 74 | #define REVGRAPH_BRANCH '+' |
| 75 | #define REVGRAPH_COMMIT '*' |
| 76 | #define REVGRAPH_BOUND '^' |
| 77 | #define REVGRAPH_LINE '|' |
| 78 | |
| 79 | #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */ |
| 80 | |
| 81 | /* This color name can be used to refer to the default term colors. */ |
| 82 | #define COLOR_DEFAULT (-1) |
| 83 | |
| 84 | #define ICONV_NONE ((iconv_t) -1) |
| 85 | #ifndef ICONV_CONST |
| 86 | #define ICONV_CONST /* nothing */ |
| 87 | #endif |
| 88 | |
| 89 | /* The format and size of the date column in the main view. */ |
| 90 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
| 91 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
| 92 | |
| 93 | #define AUTHOR_COLS 20 |
| 94 | |
| 95 | /* The default interval between line numbers. */ |
| 96 | #define NUMBER_INTERVAL 1 |
| 97 | |
| 98 | #define TABSIZE 8 |
| 99 | |
| 100 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
| 101 | |
| 102 | #ifndef GIT_CONFIG |
| 103 | #define GIT_CONFIG "git config" |
| 104 | #endif |
| 105 | |
| 106 | #define TIG_LS_REMOTE \ |
| 107 | "git ls-remote $(git rev-parse --git-dir) 2>/dev/null" |
| 108 | |
| 109 | #define TIG_DIFF_CMD \ |
| 110 | "git show --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null" |
| 111 | |
| 112 | #define TIG_LOG_CMD \ |
| 113 | "git log --no-color --cc --stat -n100 %s 2>/dev/null" |
| 114 | |
| 115 | #define TIG_MAIN_CMD \ |
| 116 | "git log --no-color --topo-order --boundary --pretty=raw %s 2>/dev/null" |
| 117 | |
| 118 | #define TIG_TREE_CMD \ |
| 119 | "git ls-tree %s %s" |
| 120 | |
| 121 | #define TIG_BLOB_CMD \ |
| 122 | "git cat-file blob %s" |
| 123 | |
| 124 | /* XXX: Needs to be defined to the empty string. */ |
| 125 | #define TIG_HELP_CMD "" |
| 126 | #define TIG_PAGER_CMD "" |
| 127 | #define TIG_STATUS_CMD "" |
| 128 | #define TIG_STAGE_CMD "" |
| 129 | |
| 130 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
| 131 | #define KEY_TAB '\t' |
| 132 | #define KEY_RETURN '\r' |
| 133 | #define KEY_ESC 27 |
| 134 | |
| 135 | |
| 136 | struct ref { |
| 137 | char *name; /* Ref name; tag or head names are shortened. */ |
| 138 | char id[SIZEOF_REV]; /* Commit SHA1 ID */ |
| 139 | unsigned int tag:1; /* Is it a tag? */ |
| 140 | unsigned int remote:1; /* Is it a remote ref? */ |
| 141 | unsigned int next:1; /* For ref lists: are there more refs? */ |
| 142 | }; |
| 143 | |
| 144 | static struct ref **get_refs(char *id); |
| 145 | |
| 146 | struct int_map { |
| 147 | const char *name; |
| 148 | int namelen; |
| 149 | int value; |
| 150 | }; |
| 151 | |
| 152 | static int |
| 153 | set_from_int_map(struct int_map *map, size_t map_size, |
| 154 | int *value, const char *name, int namelen) |
| 155 | { |
| 156 | |
| 157 | int i; |
| 158 | |
| 159 | for (i = 0; i < map_size; i++) |
| 160 | if (namelen == map[i].namelen && |
| 161 | !strncasecmp(name, map[i].name, namelen)) { |
| 162 | *value = map[i].value; |
| 163 | return OK; |
| 164 | } |
| 165 | |
| 166 | return ERR; |
| 167 | } |
| 168 | |
| 169 | |
| 170 | /* |
| 171 | * String helpers |
| 172 | */ |
| 173 | |
| 174 | static inline void |
| 175 | string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen) |
| 176 | { |
| 177 | if (srclen > dstlen - 1) |
| 178 | srclen = dstlen - 1; |
| 179 | |
| 180 | strncpy(dst, src, srclen); |
| 181 | dst[srclen] = 0; |
| 182 | } |
| 183 | |
| 184 | /* Shorthands for safely copying into a fixed buffer. */ |
| 185 | |
| 186 | #define string_copy(dst, src) \ |
| 187 | string_ncopy_do(dst, sizeof(dst), src, sizeof(src)) |
| 188 | |
| 189 | #define string_ncopy(dst, src, srclen) \ |
| 190 | string_ncopy_do(dst, sizeof(dst), src, srclen) |
| 191 | |
| 192 | #define string_copy_rev(dst, src) \ |
| 193 | string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1) |
| 194 | |
| 195 | #define string_add(dst, from, src) \ |
| 196 | string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src)) |
| 197 | |
| 198 | static char * |
| 199 | chomp_string(char *name) |
| 200 | { |
| 201 | int namelen; |
| 202 | |
| 203 | while (isspace(*name)) |
| 204 | name++; |
| 205 | |
| 206 | namelen = strlen(name) - 1; |
| 207 | while (namelen > 0 && isspace(name[namelen])) |
| 208 | name[namelen--] = 0; |
| 209 | |
| 210 | return name; |
| 211 | } |
| 212 | |
| 213 | static bool |
| 214 | string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...) |
| 215 | { |
| 216 | va_list args; |
| 217 | size_t pos = bufpos ? *bufpos : 0; |
| 218 | |
| 219 | va_start(args, fmt); |
| 220 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); |
| 221 | va_end(args); |
| 222 | |
| 223 | if (bufpos) |
| 224 | *bufpos = pos; |
| 225 | |
| 226 | return pos >= bufsize ? FALSE : TRUE; |
| 227 | } |
| 228 | |
| 229 | #define string_format(buf, fmt, args...) \ |
| 230 | string_nformat(buf, sizeof(buf), NULL, fmt, args) |
| 231 | |
| 232 | #define string_format_from(buf, from, fmt, args...) \ |
| 233 | string_nformat(buf, sizeof(buf), from, fmt, args) |
| 234 | |
| 235 | static int |
| 236 | string_enum_compare(const char *str1, const char *str2, int len) |
| 237 | { |
| 238 | size_t i; |
| 239 | |
| 240 | #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.') |
| 241 | |
| 242 | /* Diff-Header == DIFF_HEADER */ |
| 243 | for (i = 0; i < len; i++) { |
| 244 | if (toupper(str1[i]) == toupper(str2[i])) |
| 245 | continue; |
| 246 | |
| 247 | if (string_enum_sep(str1[i]) && |
| 248 | string_enum_sep(str2[i])) |
| 249 | continue; |
| 250 | |
| 251 | return str1[i] - str2[i]; |
| 252 | } |
| 253 | |
| 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | /* Shell quoting |
| 258 | * |
| 259 | * NOTE: The following is a slightly modified copy of the git project's shell |
| 260 | * quoting routines found in the quote.c file. |
| 261 | * |
| 262 | * Help to copy the thing properly quoted for the shell safety. any single |
| 263 | * quote is replaced with '\'', any exclamation point is replaced with '\!', |
| 264 | * and the whole thing is enclosed in a |
| 265 | * |
| 266 | * E.g. |
| 267 | * original sq_quote result |
| 268 | * name ==> name ==> 'name' |
| 269 | * a b ==> a b ==> 'a b' |
| 270 | * a'b ==> a'\''b ==> 'a'\''b' |
| 271 | * a!b ==> a'\!'b ==> 'a'\!'b' |
| 272 | */ |
| 273 | |
| 274 | static size_t |
| 275 | sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src) |
| 276 | { |
| 277 | char c; |
| 278 | |
| 279 | #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0) |
| 280 | |
| 281 | BUFPUT('\''); |
| 282 | while ((c = *src++)) { |
| 283 | if (c == '\'' || c == '!') { |
| 284 | BUFPUT('\''); |
| 285 | BUFPUT('\\'); |
| 286 | BUFPUT(c); |
| 287 | BUFPUT('\''); |
| 288 | } else { |
| 289 | BUFPUT(c); |
| 290 | } |
| 291 | } |
| 292 | BUFPUT('\''); |
| 293 | |
| 294 | if (bufsize < SIZEOF_STR) |
| 295 | buf[bufsize] = 0; |
| 296 | |
| 297 | return bufsize; |
| 298 | } |
| 299 | |
| 300 | |
| 301 | /* |
| 302 | * User requests |
| 303 | */ |
| 304 | |
| 305 | #define REQ_INFO \ |
| 306 | /* XXX: Keep the view request first and in sync with views[]. */ \ |
| 307 | REQ_GROUP("View switching") \ |
| 308 | REQ_(VIEW_MAIN, "Show main view"), \ |
| 309 | REQ_(VIEW_DIFF, "Show diff view"), \ |
| 310 | REQ_(VIEW_LOG, "Show log view"), \ |
| 311 | REQ_(VIEW_TREE, "Show tree view"), \ |
| 312 | REQ_(VIEW_BLOB, "Show blob view"), \ |
| 313 | REQ_(VIEW_HELP, "Show help page"), \ |
| 314 | REQ_(VIEW_PAGER, "Show pager view"), \ |
| 315 | REQ_(VIEW_STATUS, "Show status view"), \ |
| 316 | REQ_(VIEW_STAGE, "Show stage view"), \ |
| 317 | \ |
| 318 | REQ_GROUP("View manipulation") \ |
| 319 | REQ_(ENTER, "Enter current line and scroll"), \ |
| 320 | REQ_(NEXT, "Move to next"), \ |
| 321 | REQ_(PREVIOUS, "Move to previous"), \ |
| 322 | REQ_(VIEW_NEXT, "Move focus to next view"), \ |
| 323 | REQ_(REFRESH, "Reload and refresh"), \ |
| 324 | REQ_(VIEW_CLOSE, "Close the current view"), \ |
| 325 | REQ_(QUIT, "Close all views and quit"), \ |
| 326 | \ |
| 327 | REQ_GROUP("Cursor navigation") \ |
| 328 | REQ_(MOVE_UP, "Move cursor one line up"), \ |
| 329 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ |
| 330 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ |
| 331 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ |
| 332 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ |
| 333 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ |
| 334 | \ |
| 335 | REQ_GROUP("Scrolling") \ |
| 336 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ |
| 337 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ |
| 338 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ |
| 339 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ |
| 340 | \ |
| 341 | REQ_GROUP("Searching") \ |
| 342 | REQ_(SEARCH, "Search the view"), \ |
| 343 | REQ_(SEARCH_BACK, "Search backwards in the view"), \ |
| 344 | REQ_(FIND_NEXT, "Find next search match"), \ |
| 345 | REQ_(FIND_PREV, "Find previous search match"), \ |
| 346 | \ |
| 347 | REQ_GROUP("Misc") \ |
| 348 | REQ_(PROMPT, "Bring up the prompt"), \ |
| 349 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ |
| 350 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ |
| 351 | REQ_(SHOW_VERSION, "Show version information"), \ |
| 352 | REQ_(STOP_LOADING, "Stop all loading views"), \ |
| 353 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ |
| 354 | REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \ |
| 355 | REQ_(STATUS_UPDATE, "Update file status"), \ |
| 356 | REQ_(STATUS_MERGE, "Merge file using external tool"), \ |
| 357 | REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \ |
| 358 | REQ_(EDIT, "Open in editor"), \ |
| 359 | REQ_(NONE, "Do nothing") |
| 360 | |
| 361 | |
| 362 | /* User action requests. */ |
| 363 | enum request { |
| 364 | #define REQ_GROUP(help) |
| 365 | #define REQ_(req, help) REQ_##req |
| 366 | |
| 367 | /* Offset all requests to avoid conflicts with ncurses getch values. */ |
| 368 | REQ_OFFSET = KEY_MAX + 1, |
| 369 | REQ_INFO |
| 370 | |
| 371 | #undef REQ_GROUP |
| 372 | #undef REQ_ |
| 373 | }; |
| 374 | |
| 375 | struct request_info { |
| 376 | enum request request; |
| 377 | char *name; |
| 378 | int namelen; |
| 379 | char *help; |
| 380 | }; |
| 381 | |
| 382 | static struct request_info req_info[] = { |
| 383 | #define REQ_GROUP(help) { 0, NULL, 0, (help) }, |
| 384 | #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) } |
| 385 | REQ_INFO |
| 386 | #undef REQ_GROUP |
| 387 | #undef REQ_ |
| 388 | }; |
| 389 | |
| 390 | static enum request |
| 391 | get_request(const char *name) |
| 392 | { |
| 393 | int namelen = strlen(name); |
| 394 | int i; |
| 395 | |
| 396 | for (i = 0; i < ARRAY_SIZE(req_info); i++) |
| 397 | if (req_info[i].namelen == namelen && |
| 398 | !string_enum_compare(req_info[i].name, name, namelen)) |
| 399 | return req_info[i].request; |
| 400 | |
| 401 | return REQ_NONE; |
| 402 | } |
| 403 | |
| 404 | |
| 405 | /* |
| 406 | * Options |
| 407 | */ |
| 408 | |
| 409 | static const char usage[] = |
| 410 | "tig " TIG_VERSION " (" __DATE__ ")\n" |
| 411 | "\n" |
| 412 | "Usage: tig [options] [revs] [--] [paths]\n" |
| 413 | " or: tig show [options] [revs] [--] [paths]\n" |
| 414 | " or: tig status\n" |
| 415 | " or: tig < [git command output]\n" |
| 416 | "\n" |
| 417 | "Options:\n" |
| 418 | " -v, --version Show version and exit\n" |
| 419 | " -h, --help Show help message and exit\n"; |
| 420 | |
| 421 | /* Option and state variables. */ |
| 422 | static bool opt_line_number = FALSE; |
| 423 | static bool opt_rev_graph = FALSE; |
| 424 | static int opt_num_interval = NUMBER_INTERVAL; |
| 425 | static int opt_tab_size = TABSIZE; |
| 426 | static enum request opt_request = REQ_VIEW_MAIN; |
| 427 | static char opt_cmd[SIZEOF_STR] = ""; |
| 428 | static char opt_path[SIZEOF_STR] = ""; |
| 429 | static FILE *opt_pipe = NULL; |
| 430 | static char opt_encoding[20] = "UTF-8"; |
| 431 | static bool opt_utf8 = TRUE; |
| 432 | static char opt_codeset[20] = "UTF-8"; |
| 433 | static iconv_t opt_iconv = ICONV_NONE; |
| 434 | static char opt_search[SIZEOF_STR] = ""; |
| 435 | static char opt_cdup[SIZEOF_STR] = ""; |
| 436 | static char opt_git_dir[SIZEOF_STR] = ""; |
| 437 | static char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */ |
| 438 | static char opt_editor[SIZEOF_STR] = ""; |
| 439 | |
| 440 | enum option_type { |
| 441 | OPT_NONE, |
| 442 | OPT_INT, |
| 443 | }; |
| 444 | |
| 445 | static bool |
| 446 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) |
| 447 | { |
| 448 | va_list args; |
| 449 | char *value = ""; |
| 450 | int *number; |
| 451 | |
| 452 | if (opt[0] != '-') |
| 453 | return FALSE; |
| 454 | |
| 455 | if (opt[1] == '-') { |
| 456 | int namelen = strlen(name); |
| 457 | |
| 458 | opt += 2; |
| 459 | |
| 460 | if (strncmp(opt, name, namelen)) |
| 461 | return FALSE; |
| 462 | |
| 463 | if (opt[namelen] == '=') |
| 464 | value = opt + namelen + 1; |
| 465 | |
| 466 | } else { |
| 467 | if (!short_name || opt[1] != short_name) |
| 468 | return FALSE; |
| 469 | value = opt + 2; |
| 470 | } |
| 471 | |
| 472 | va_start(args, type); |
| 473 | if (type == OPT_INT) { |
| 474 | number = va_arg(args, int *); |
| 475 | if (isdigit(*value)) |
| 476 | *number = atoi(value); |
| 477 | } |
| 478 | va_end(args); |
| 479 | |
| 480 | return TRUE; |
| 481 | } |
| 482 | |
| 483 | /* Returns the index of log or diff command or -1 to exit. */ |
| 484 | static bool |
| 485 | parse_options(int argc, char *argv[]) |
| 486 | { |
| 487 | char *altargv[1024]; |
| 488 | int altargc = 0; |
| 489 | char *subcommand = NULL; |
| 490 | int i; |
| 491 | |
| 492 | for (i = 1; i < argc; i++) { |
| 493 | char *opt = argv[i]; |
| 494 | |
| 495 | if (!strcmp(opt, "log") || |
| 496 | !strcmp(opt, "diff")) { |
| 497 | subcommand = opt; |
| 498 | opt_request = opt[0] == 'l' |
| 499 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; |
| 500 | warn("`tig %s' has been deprecated", opt); |
| 501 | break; |
| 502 | } |
| 503 | |
| 504 | if (!strcmp(opt, "show")) { |
| 505 | subcommand = opt; |
| 506 | opt_request = REQ_VIEW_DIFF; |
| 507 | break; |
| 508 | } |
| 509 | |
| 510 | if (!strcmp(opt, "status")) { |
| 511 | subcommand = opt; |
| 512 | opt_request = REQ_VIEW_STATUS; |
| 513 | break; |
| 514 | } |
| 515 | |
| 516 | if (opt[0] && opt[0] != '-') |
| 517 | break; |
| 518 | |
| 519 | if (!strcmp(opt, "--")) { |
| 520 | i++; |
| 521 | break; |
| 522 | } |
| 523 | |
| 524 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
| 525 | printf("tig version %s\n", TIG_VERSION); |
| 526 | return FALSE; |
| 527 | } |
| 528 | |
| 529 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
| 530 | printf(usage); |
| 531 | return FALSE; |
| 532 | } |
| 533 | |
| 534 | if (!strcmp(opt, "-S")) { |
| 535 | warn("`%s' has been deprecated; use `tig status' instead", opt); |
| 536 | opt_request = REQ_VIEW_STATUS; |
| 537 | continue; |
| 538 | } |
| 539 | |
| 540 | if (!strcmp(opt, "-l")) { |
| 541 | opt_request = REQ_VIEW_LOG; |
| 542 | } else if (!strcmp(opt, "-d")) { |
| 543 | opt_request = REQ_VIEW_DIFF; |
| 544 | } else if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
| 545 | opt_line_number = TRUE; |
| 546 | } else if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
| 547 | opt_tab_size = MIN(opt_tab_size, TABSIZE); |
| 548 | } else { |
| 549 | if (altargc >= ARRAY_SIZE(altargv)) |
| 550 | die("maximum number of arguments exceeded"); |
| 551 | altargv[altargc++] = opt; |
| 552 | continue; |
| 553 | } |
| 554 | |
| 555 | warn("`%s' has been deprecated", opt); |
| 556 | } |
| 557 | |
| 558 | /* Check that no 'alt' arguments occured before a subcommand. */ |
| 559 | if (subcommand && i < argc && altargc > 0) |
| 560 | die("unknown arguments before `%s'", argv[i]); |
| 561 | |
| 562 | if (!isatty(STDIN_FILENO)) { |
| 563 | opt_request = REQ_VIEW_PAGER; |
| 564 | opt_pipe = stdin; |
| 565 | |
| 566 | } else if (opt_request == REQ_VIEW_STATUS) { |
| 567 | if (argc - i > 1) |
| 568 | warn("ignoring arguments after `%s'", argv[i]); |
| 569 | |
| 570 | } else if (i < argc || altargc > 0) { |
| 571 | int alti = 0; |
| 572 | size_t buf_size; |
| 573 | |
| 574 | if (opt_request == REQ_VIEW_MAIN) |
| 575 | /* XXX: This is vulnerable to the user overriding |
| 576 | * options required for the main view parser. */ |
| 577 | string_copy(opt_cmd, "git log --no-color --pretty=raw --boundary"); |
| 578 | else |
| 579 | string_copy(opt_cmd, "git"); |
| 580 | buf_size = strlen(opt_cmd); |
| 581 | |
| 582 | while (buf_size < sizeof(opt_cmd) && alti < altargc) { |
| 583 | opt_cmd[buf_size++] = ' '; |
| 584 | buf_size = sq_quote(opt_cmd, buf_size, altargv[alti++]); |
| 585 | } |
| 586 | |
| 587 | while (buf_size < sizeof(opt_cmd) && i < argc) { |
| 588 | opt_cmd[buf_size++] = ' '; |
| 589 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); |
| 590 | } |
| 591 | |
| 592 | if (buf_size >= sizeof(opt_cmd)) |
| 593 | die("command too long"); |
| 594 | |
| 595 | opt_cmd[buf_size] = 0; |
| 596 | } |
| 597 | |
| 598 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
| 599 | opt_utf8 = FALSE; |
| 600 | |
| 601 | return TRUE; |
| 602 | } |
| 603 | |
| 604 | |
| 605 | /* |
| 606 | * Line-oriented content detection. |
| 607 | */ |
| 608 | |
| 609 | #define LINE_INFO \ |
| 610 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 611 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 612 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
| 613 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ |
| 614 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 615 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 616 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 617 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 618 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 619 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 620 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 621 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 622 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 623 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 624 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
| 625 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 626 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 627 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 628 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 629 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 630 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
| 631 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
| 632 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 633 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 634 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
| 635 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 636 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 637 | LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 638 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
| 639 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ |
| 640 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
| 641 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
| 642 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ |
| 643 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 644 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
| 645 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ |
| 646 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 647 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ |
| 648 | LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \ |
| 649 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
| 650 | LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 651 | LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
| 652 | LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
| 653 | LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
| 654 | LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ |
| 655 | LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 656 | LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 657 | LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0) |
| 658 | |
| 659 | enum line_type { |
| 660 | #define LINE(type, line, fg, bg, attr) \ |
| 661 | LINE_##type |
| 662 | LINE_INFO |
| 663 | #undef LINE |
| 664 | }; |
| 665 | |
| 666 | struct line_info { |
| 667 | const char *name; /* Option name. */ |
| 668 | int namelen; /* Size of option name. */ |
| 669 | const char *line; /* The start of line to match. */ |
| 670 | int linelen; /* Size of string to match. */ |
| 671 | int fg, bg, attr; /* Color and text attributes for the lines. */ |
| 672 | }; |
| 673 | |
| 674 | static struct line_info line_info[] = { |
| 675 | #define LINE(type, line, fg, bg, attr) \ |
| 676 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
| 677 | LINE_INFO |
| 678 | #undef LINE |
| 679 | }; |
| 680 | |
| 681 | static enum line_type |
| 682 | get_line_type(char *line) |
| 683 | { |
| 684 | int linelen = strlen(line); |
| 685 | enum line_type type; |
| 686 | |
| 687 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
| 688 | /* Case insensitive search matches Signed-off-by lines better. */ |
| 689 | if (linelen >= line_info[type].linelen && |
| 690 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) |
| 691 | return type; |
| 692 | |
| 693 | return LINE_DEFAULT; |
| 694 | } |
| 695 | |
| 696 | static inline int |
| 697 | get_line_attr(enum line_type type) |
| 698 | { |
| 699 | assert(type < ARRAY_SIZE(line_info)); |
| 700 | return COLOR_PAIR(type) | line_info[type].attr; |
| 701 | } |
| 702 | |
| 703 | static struct line_info * |
| 704 | get_line_info(char *name, int namelen) |
| 705 | { |
| 706 | enum line_type type; |
| 707 | |
| 708 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
| 709 | if (namelen == line_info[type].namelen && |
| 710 | !string_enum_compare(line_info[type].name, name, namelen)) |
| 711 | return &line_info[type]; |
| 712 | |
| 713 | return NULL; |
| 714 | } |
| 715 | |
| 716 | static void |
| 717 | init_colors(void) |
| 718 | { |
| 719 | int default_bg = line_info[LINE_DEFAULT].bg; |
| 720 | int default_fg = line_info[LINE_DEFAULT].fg; |
| 721 | enum line_type type; |
| 722 | |
| 723 | start_color(); |
| 724 | |
| 725 | if (assume_default_colors(default_fg, default_bg) == ERR) { |
| 726 | default_bg = COLOR_BLACK; |
| 727 | default_fg = COLOR_WHITE; |
| 728 | } |
| 729 | |
| 730 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
| 731 | struct line_info *info = &line_info[type]; |
| 732 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
| 733 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; |
| 734 | |
| 735 | init_pair(type, fg, bg); |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | struct line { |
| 740 | enum line_type type; |
| 741 | |
| 742 | /* State flags */ |
| 743 | unsigned int selected:1; |
| 744 | |
| 745 | void *data; /* User data */ |
| 746 | }; |
| 747 | |
| 748 | |
| 749 | /* |
| 750 | * Keys |
| 751 | */ |
| 752 | |
| 753 | struct keybinding { |
| 754 | int alias; |
| 755 | enum request request; |
| 756 | struct keybinding *next; |
| 757 | }; |
| 758 | |
| 759 | static struct keybinding default_keybindings[] = { |
| 760 | /* View switching */ |
| 761 | { 'm', REQ_VIEW_MAIN }, |
| 762 | { 'd', REQ_VIEW_DIFF }, |
| 763 | { 'l', REQ_VIEW_LOG }, |
| 764 | { 't', REQ_VIEW_TREE }, |
| 765 | { 'f', REQ_VIEW_BLOB }, |
| 766 | { 'p', REQ_VIEW_PAGER }, |
| 767 | { 'h', REQ_VIEW_HELP }, |
| 768 | { 'S', REQ_VIEW_STATUS }, |
| 769 | { 'c', REQ_VIEW_STAGE }, |
| 770 | |
| 771 | /* View manipulation */ |
| 772 | { 'q', REQ_VIEW_CLOSE }, |
| 773 | { KEY_TAB, REQ_VIEW_NEXT }, |
| 774 | { KEY_RETURN, REQ_ENTER }, |
| 775 | { KEY_UP, REQ_PREVIOUS }, |
| 776 | { KEY_DOWN, REQ_NEXT }, |
| 777 | { 'R', REQ_REFRESH }, |
| 778 | |
| 779 | /* Cursor navigation */ |
| 780 | { 'k', REQ_MOVE_UP }, |
| 781 | { 'j', REQ_MOVE_DOWN }, |
| 782 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, |
| 783 | { KEY_END, REQ_MOVE_LAST_LINE }, |
| 784 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, |
| 785 | { ' ', REQ_MOVE_PAGE_DOWN }, |
| 786 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, |
| 787 | { 'b', REQ_MOVE_PAGE_UP }, |
| 788 | { '-', REQ_MOVE_PAGE_UP }, |
| 789 | |
| 790 | /* Scrolling */ |
| 791 | { KEY_IC, REQ_SCROLL_LINE_UP }, |
| 792 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, |
| 793 | { 'w', REQ_SCROLL_PAGE_UP }, |
| 794 | { 's', REQ_SCROLL_PAGE_DOWN }, |
| 795 | |
| 796 | /* Searching */ |
| 797 | { '/', REQ_SEARCH }, |
| 798 | { '?', REQ_SEARCH_BACK }, |
| 799 | { 'n', REQ_FIND_NEXT }, |
| 800 | { 'N', REQ_FIND_PREV }, |
| 801 | |
| 802 | /* Misc */ |
| 803 | { 'Q', REQ_QUIT }, |
| 804 | { 'z', REQ_STOP_LOADING }, |
| 805 | { 'v', REQ_SHOW_VERSION }, |
| 806 | { 'r', REQ_SCREEN_REDRAW }, |
| 807 | { '.', REQ_TOGGLE_LINENO }, |
| 808 | { 'g', REQ_TOGGLE_REV_GRAPH }, |
| 809 | { ':', REQ_PROMPT }, |
| 810 | { 'u', REQ_STATUS_UPDATE }, |
| 811 | { 'M', REQ_STATUS_MERGE }, |
| 812 | { ',', REQ_TREE_PARENT }, |
| 813 | { 'e', REQ_EDIT }, |
| 814 | |
| 815 | /* Using the ncurses SIGWINCH handler. */ |
| 816 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, |
| 817 | }; |
| 818 | |
| 819 | #define KEYMAP_INFO \ |
| 820 | KEYMAP_(GENERIC), \ |
| 821 | KEYMAP_(MAIN), \ |
| 822 | KEYMAP_(DIFF), \ |
| 823 | KEYMAP_(LOG), \ |
| 824 | KEYMAP_(TREE), \ |
| 825 | KEYMAP_(BLOB), \ |
| 826 | KEYMAP_(PAGER), \ |
| 827 | KEYMAP_(HELP), \ |
| 828 | KEYMAP_(STATUS), \ |
| 829 | KEYMAP_(STAGE) |
| 830 | |
| 831 | enum keymap { |
| 832 | #define KEYMAP_(name) KEYMAP_##name |
| 833 | KEYMAP_INFO |
| 834 | #undef KEYMAP_ |
| 835 | }; |
| 836 | |
| 837 | static struct int_map keymap_table[] = { |
| 838 | #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name } |
| 839 | KEYMAP_INFO |
| 840 | #undef KEYMAP_ |
| 841 | }; |
| 842 | |
| 843 | #define set_keymap(map, name) \ |
| 844 | set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name)) |
| 845 | |
| 846 | static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)]; |
| 847 | |
| 848 | static void |
| 849 | add_keybinding(enum keymap keymap, enum request request, int key) |
| 850 | { |
| 851 | struct keybinding *keybinding; |
| 852 | |
| 853 | keybinding = calloc(1, sizeof(*keybinding)); |
| 854 | if (!keybinding) |
| 855 | die("Failed to allocate keybinding"); |
| 856 | |
| 857 | keybinding->alias = key; |
| 858 | keybinding->request = request; |
| 859 | keybinding->next = keybindings[keymap]; |
| 860 | keybindings[keymap] = keybinding; |
| 861 | } |
| 862 | |
| 863 | /* Looks for a key binding first in the given map, then in the generic map, and |
| 864 | * lastly in the default keybindings. */ |
| 865 | static enum request |
| 866 | get_keybinding(enum keymap keymap, int key) |
| 867 | { |
| 868 | struct keybinding *kbd; |
| 869 | int i; |
| 870 | |
| 871 | for (kbd = keybindings[keymap]; kbd; kbd = kbd->next) |
| 872 | if (kbd->alias == key) |
| 873 | return kbd->request; |
| 874 | |
| 875 | for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next) |
| 876 | if (kbd->alias == key) |
| 877 | return kbd->request; |
| 878 | |
| 879 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) |
| 880 | if (default_keybindings[i].alias == key) |
| 881 | return default_keybindings[i].request; |
| 882 | |
| 883 | return (enum request) key; |
| 884 | } |
| 885 | |
| 886 | |
| 887 | struct key { |
| 888 | char *name; |
| 889 | int value; |
| 890 | }; |
| 891 | |
| 892 | static struct key key_table[] = { |
| 893 | { "Enter", KEY_RETURN }, |
| 894 | { "Space", ' ' }, |
| 895 | { "Backspace", KEY_BACKSPACE }, |
| 896 | { "Tab", KEY_TAB }, |
| 897 | { "Escape", KEY_ESC }, |
| 898 | { "Left", KEY_LEFT }, |
| 899 | { "Right", KEY_RIGHT }, |
| 900 | { "Up", KEY_UP }, |
| 901 | { "Down", KEY_DOWN }, |
| 902 | { "Insert", KEY_IC }, |
| 903 | { "Delete", KEY_DC }, |
| 904 | { "Hash", '#' }, |
| 905 | { "Home", KEY_HOME }, |
| 906 | { "End", KEY_END }, |
| 907 | { "PageUp", KEY_PPAGE }, |
| 908 | { "PageDown", KEY_NPAGE }, |
| 909 | { "F1", KEY_F(1) }, |
| 910 | { "F2", KEY_F(2) }, |
| 911 | { "F3", KEY_F(3) }, |
| 912 | { "F4", KEY_F(4) }, |
| 913 | { "F5", KEY_F(5) }, |
| 914 | { "F6", KEY_F(6) }, |
| 915 | { "F7", KEY_F(7) }, |
| 916 | { "F8", KEY_F(8) }, |
| 917 | { "F9", KEY_F(9) }, |
| 918 | { "F10", KEY_F(10) }, |
| 919 | { "F11", KEY_F(11) }, |
| 920 | { "F12", KEY_F(12) }, |
| 921 | }; |
| 922 | |
| 923 | static int |
| 924 | get_key_value(const char *name) |
| 925 | { |
| 926 | int i; |
| 927 | |
| 928 | for (i = 0; i < ARRAY_SIZE(key_table); i++) |
| 929 | if (!strcasecmp(key_table[i].name, name)) |
| 930 | return key_table[i].value; |
| 931 | |
| 932 | if (strlen(name) == 1 && isprint(*name)) |
| 933 | return (int) *name; |
| 934 | |
| 935 | return ERR; |
| 936 | } |
| 937 | |
| 938 | static char * |
| 939 | get_key_name(int key_value) |
| 940 | { |
| 941 | static char key_char[] = "'X'"; |
| 942 | char *seq = NULL; |
| 943 | int key; |
| 944 | |
| 945 | for (key = 0; key < ARRAY_SIZE(key_table); key++) |
| 946 | if (key_table[key].value == key_value) |
| 947 | seq = key_table[key].name; |
| 948 | |
| 949 | if (seq == NULL && |
| 950 | key_value < 127 && |
| 951 | isprint(key_value)) { |
| 952 | key_char[1] = (char) key_value; |
| 953 | seq = key_char; |
| 954 | } |
| 955 | |
| 956 | return seq ? seq : "'?'"; |
| 957 | } |
| 958 | |
| 959 | static char * |
| 960 | get_key(enum request request) |
| 961 | { |
| 962 | static char buf[BUFSIZ]; |
| 963 | size_t pos = 0; |
| 964 | char *sep = ""; |
| 965 | int i; |
| 966 | |
| 967 | buf[pos] = 0; |
| 968 | |
| 969 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) { |
| 970 | struct keybinding *keybinding = &default_keybindings[i]; |
| 971 | |
| 972 | if (keybinding->request != request) |
| 973 | continue; |
| 974 | |
| 975 | if (!string_format_from(buf, &pos, "%s%s", sep, |
| 976 | get_key_name(keybinding->alias))) |
| 977 | return "Too many keybindings!"; |
| 978 | sep = ", "; |
| 979 | } |
| 980 | |
| 981 | return buf; |
| 982 | } |
| 983 | |
| 984 | struct run_request { |
| 985 | enum keymap keymap; |
| 986 | int key; |
| 987 | char cmd[SIZEOF_STR]; |
| 988 | }; |
| 989 | |
| 990 | static struct run_request *run_request; |
| 991 | static size_t run_requests; |
| 992 | |
| 993 | static enum request |
| 994 | add_run_request(enum keymap keymap, int key, int argc, char **argv) |
| 995 | { |
| 996 | struct run_request *tmp; |
| 997 | struct run_request req = { keymap, key }; |
| 998 | size_t bufpos; |
| 999 | |
| 1000 | for (bufpos = 0; argc > 0; argc--, argv++) |
| 1001 | if (!string_format_from(req.cmd, &bufpos, "%s ", *argv)) |
| 1002 | return REQ_NONE; |
| 1003 | |
| 1004 | req.cmd[bufpos - 1] = 0; |
| 1005 | |
| 1006 | tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request)); |
| 1007 | if (!tmp) |
| 1008 | return REQ_NONE; |
| 1009 | |
| 1010 | run_request = tmp; |
| 1011 | run_request[run_requests++] = req; |
| 1012 | |
| 1013 | return REQ_NONE + run_requests; |
| 1014 | } |
| 1015 | |
| 1016 | static struct run_request * |
| 1017 | get_run_request(enum request request) |
| 1018 | { |
| 1019 | if (request <= REQ_NONE) |
| 1020 | return NULL; |
| 1021 | return &run_request[request - REQ_NONE - 1]; |
| 1022 | } |
| 1023 | |
| 1024 | static void |
| 1025 | add_builtin_run_requests(void) |
| 1026 | { |
| 1027 | struct { |
| 1028 | enum keymap keymap; |
| 1029 | int key; |
| 1030 | char *argv[1]; |
| 1031 | } reqs[] = { |
| 1032 | { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } }, |
| 1033 | { KEYMAP_GENERIC, 'G', { "git gc" } }, |
| 1034 | }; |
| 1035 | int i; |
| 1036 | |
| 1037 | for (i = 0; i < ARRAY_SIZE(reqs); i++) { |
| 1038 | enum request req; |
| 1039 | |
| 1040 | req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv); |
| 1041 | if (req != REQ_NONE) |
| 1042 | add_keybinding(reqs[i].keymap, req, reqs[i].key); |
| 1043 | } |
| 1044 | } |
| 1045 | |
| 1046 | /* |
| 1047 | * User config file handling. |
| 1048 | */ |
| 1049 | |
| 1050 | static struct int_map color_map[] = { |
| 1051 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } |
| 1052 | COLOR_MAP(DEFAULT), |
| 1053 | COLOR_MAP(BLACK), |
| 1054 | COLOR_MAP(BLUE), |
| 1055 | COLOR_MAP(CYAN), |
| 1056 | COLOR_MAP(GREEN), |
| 1057 | COLOR_MAP(MAGENTA), |
| 1058 | COLOR_MAP(RED), |
| 1059 | COLOR_MAP(WHITE), |
| 1060 | COLOR_MAP(YELLOW), |
| 1061 | }; |
| 1062 | |
| 1063 | #define set_color(color, name) \ |
| 1064 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) |
| 1065 | |
| 1066 | static struct int_map attr_map[] = { |
| 1067 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } |
| 1068 | ATTR_MAP(NORMAL), |
| 1069 | ATTR_MAP(BLINK), |
| 1070 | ATTR_MAP(BOLD), |
| 1071 | ATTR_MAP(DIM), |
| 1072 | ATTR_MAP(REVERSE), |
| 1073 | ATTR_MAP(STANDOUT), |
| 1074 | ATTR_MAP(UNDERLINE), |
| 1075 | }; |
| 1076 | |
| 1077 | #define set_attribute(attr, name) \ |
| 1078 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) |
| 1079 | |
| 1080 | static int config_lineno; |
| 1081 | static bool config_errors; |
| 1082 | static char *config_msg; |
| 1083 | |
| 1084 | /* Wants: object fgcolor bgcolor [attr] */ |
| 1085 | static int |
| 1086 | option_color_command(int argc, char *argv[]) |
| 1087 | { |
| 1088 | struct line_info *info; |
| 1089 | |
| 1090 | if (argc != 3 && argc != 4) { |
| 1091 | config_msg = "Wrong number of arguments given to color command"; |
| 1092 | return ERR; |
| 1093 | } |
| 1094 | |
| 1095 | info = get_line_info(argv[0], strlen(argv[0])); |
| 1096 | if (!info) { |
| 1097 | config_msg = "Unknown color name"; |
| 1098 | return ERR; |
| 1099 | } |
| 1100 | |
| 1101 | if (set_color(&info->fg, argv[1]) == ERR || |
| 1102 | set_color(&info->bg, argv[2]) == ERR) { |
| 1103 | config_msg = "Unknown color"; |
| 1104 | return ERR; |
| 1105 | } |
| 1106 | |
| 1107 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
| 1108 | config_msg = "Unknown attribute"; |
| 1109 | return ERR; |
| 1110 | } |
| 1111 | |
| 1112 | return OK; |
| 1113 | } |
| 1114 | |
| 1115 | /* Wants: name = value */ |
| 1116 | static int |
| 1117 | option_set_command(int argc, char *argv[]) |
| 1118 | { |
| 1119 | if (argc != 3) { |
| 1120 | config_msg = "Wrong number of arguments given to set command"; |
| 1121 | return ERR; |
| 1122 | } |
| 1123 | |
| 1124 | if (strcmp(argv[1], "=")) { |
| 1125 | config_msg = "No value assigned"; |
| 1126 | return ERR; |
| 1127 | } |
| 1128 | |
| 1129 | if (!strcmp(argv[0], "show-rev-graph")) { |
| 1130 | opt_rev_graph = (!strcmp(argv[2], "1") || |
| 1131 | !strcmp(argv[2], "true") || |
| 1132 | !strcmp(argv[2], "yes")); |
| 1133 | return OK; |
| 1134 | } |
| 1135 | |
| 1136 | if (!strcmp(argv[0], "line-number-interval")) { |
| 1137 | opt_num_interval = atoi(argv[2]); |
| 1138 | return OK; |
| 1139 | } |
| 1140 | |
| 1141 | if (!strcmp(argv[0], "tab-size")) { |
| 1142 | opt_tab_size = atoi(argv[2]); |
| 1143 | return OK; |
| 1144 | } |
| 1145 | |
| 1146 | if (!strcmp(argv[0], "commit-encoding")) { |
| 1147 | char *arg = argv[2]; |
| 1148 | int delimiter = *arg; |
| 1149 | int i; |
| 1150 | |
| 1151 | switch (delimiter) { |
| 1152 | case '"': |
| 1153 | case '\'': |
| 1154 | for (arg++, i = 0; arg[i]; i++) |
| 1155 | if (arg[i] == delimiter) { |
| 1156 | arg[i] = 0; |
| 1157 | break; |
| 1158 | } |
| 1159 | default: |
| 1160 | string_ncopy(opt_encoding, arg, strlen(arg)); |
| 1161 | return OK; |
| 1162 | } |
| 1163 | } |
| 1164 | |
| 1165 | config_msg = "Unknown variable name"; |
| 1166 | return ERR; |
| 1167 | } |
| 1168 | |
| 1169 | /* Wants: mode request key */ |
| 1170 | static int |
| 1171 | option_bind_command(int argc, char *argv[]) |
| 1172 | { |
| 1173 | enum request request; |
| 1174 | int keymap; |
| 1175 | int key; |
| 1176 | |
| 1177 | if (argc < 3) { |
| 1178 | config_msg = "Wrong number of arguments given to bind command"; |
| 1179 | return ERR; |
| 1180 | } |
| 1181 | |
| 1182 | if (set_keymap(&keymap, argv[0]) == ERR) { |
| 1183 | config_msg = "Unknown key map"; |
| 1184 | return ERR; |
| 1185 | } |
| 1186 | |
| 1187 | key = get_key_value(argv[1]); |
| 1188 | if (key == ERR) { |
| 1189 | config_msg = "Unknown key"; |
| 1190 | return ERR; |
| 1191 | } |
| 1192 | |
| 1193 | request = get_request(argv[2]); |
| 1194 | if (request == REQ_NONE) { |
| 1195 | const char *obsolete[] = { "cherry-pick" }; |
| 1196 | size_t namelen = strlen(argv[2]); |
| 1197 | int i; |
| 1198 | |
| 1199 | for (i = 0; i < ARRAY_SIZE(obsolete); i++) { |
| 1200 | if (namelen == strlen(obsolete[i]) && |
| 1201 | !string_enum_compare(obsolete[i], argv[2], namelen)) { |
| 1202 | config_msg = "Obsolete request name"; |
| 1203 | return ERR; |
| 1204 | } |
| 1205 | } |
| 1206 | } |
| 1207 | if (request == REQ_NONE && *argv[2]++ == '!') |
| 1208 | request = add_run_request(keymap, key, argc - 2, argv + 2); |
| 1209 | if (request == REQ_NONE) { |
| 1210 | config_msg = "Unknown request name"; |
| 1211 | return ERR; |
| 1212 | } |
| 1213 | |
| 1214 | add_keybinding(keymap, request, key); |
| 1215 | |
| 1216 | return OK; |
| 1217 | } |
| 1218 | |
| 1219 | static int |
| 1220 | set_option(char *opt, char *value) |
| 1221 | { |
| 1222 | char *argv[16]; |
| 1223 | int valuelen; |
| 1224 | int argc = 0; |
| 1225 | |
| 1226 | /* Tokenize */ |
| 1227 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { |
| 1228 | argv[argc++] = value; |
| 1229 | value += valuelen; |
| 1230 | |
| 1231 | /* Nothing more to tokenize or last available token. */ |
| 1232 | if (!*value || argc >= ARRAY_SIZE(argv)) |
| 1233 | break; |
| 1234 | |
| 1235 | *value++ = 0; |
| 1236 | while (isspace(*value)) |
| 1237 | value++; |
| 1238 | } |
| 1239 | |
| 1240 | if (!strcmp(opt, "color")) |
| 1241 | return option_color_command(argc, argv); |
| 1242 | |
| 1243 | if (!strcmp(opt, "set")) |
| 1244 | return option_set_command(argc, argv); |
| 1245 | |
| 1246 | if (!strcmp(opt, "bind")) |
| 1247 | return option_bind_command(argc, argv); |
| 1248 | |
| 1249 | config_msg = "Unknown option command"; |
| 1250 | return ERR; |
| 1251 | } |
| 1252 | |
| 1253 | static int |
| 1254 | read_option(char *opt, size_t optlen, char *value, size_t valuelen) |
| 1255 | { |
| 1256 | int status = OK; |
| 1257 | |
| 1258 | config_lineno++; |
| 1259 | config_msg = "Internal error"; |
| 1260 | |
| 1261 | /* Check for comment markers, since read_properties() will |
| 1262 | * only ensure opt and value are split at first " \t". */ |
| 1263 | optlen = strcspn(opt, "#"); |
| 1264 | if (optlen == 0) |
| 1265 | return OK; |
| 1266 | |
| 1267 | if (opt[optlen] != 0) { |
| 1268 | config_msg = "No option value"; |
| 1269 | status = ERR; |
| 1270 | |
| 1271 | } else { |
| 1272 | /* Look for comment endings in the value. */ |
| 1273 | size_t len = strcspn(value, "#"); |
| 1274 | |
| 1275 | if (len < valuelen) { |
| 1276 | valuelen = len; |
| 1277 | value[valuelen] = 0; |
| 1278 | } |
| 1279 | |
| 1280 | status = set_option(opt, value); |
| 1281 | } |
| 1282 | |
| 1283 | if (status == ERR) { |
| 1284 | fprintf(stderr, "Error on line %d, near '%.*s': %s\n", |
| 1285 | config_lineno, (int) optlen, opt, config_msg); |
| 1286 | config_errors = TRUE; |
| 1287 | } |
| 1288 | |
| 1289 | /* Always keep going if errors are encountered. */ |
| 1290 | return OK; |
| 1291 | } |
| 1292 | |
| 1293 | static void |
| 1294 | load_option_file(const char *path) |
| 1295 | { |
| 1296 | FILE *file; |
| 1297 | |
| 1298 | /* It's ok that the file doesn't exist. */ |
| 1299 | file = fopen(path, "r"); |
| 1300 | if (!file) |
| 1301 | return; |
| 1302 | |
| 1303 | config_lineno = 0; |
| 1304 | config_errors = FALSE; |
| 1305 | |
| 1306 | if (read_properties(file, " \t", read_option) == ERR || |
| 1307 | config_errors == TRUE) |
| 1308 | fprintf(stderr, "Errors while loading %s.\n", path); |
| 1309 | } |
| 1310 | |
| 1311 | static int |
| 1312 | load_options(void) |
| 1313 | { |
| 1314 | char *home = getenv("HOME"); |
| 1315 | char *tigrc_user = getenv("TIGRC_USER"); |
| 1316 | char *tigrc_system = getenv("TIGRC_SYSTEM"); |
| 1317 | char buf[SIZEOF_STR]; |
| 1318 | |
| 1319 | add_builtin_run_requests(); |
| 1320 | |
| 1321 | if (!tigrc_system) { |
| 1322 | if (!string_format(buf, "%s/tigrc", SYSCONFDIR)) |
| 1323 | return ERR; |
| 1324 | tigrc_system = buf; |
| 1325 | } |
| 1326 | load_option_file(tigrc_system); |
| 1327 | |
| 1328 | if (!tigrc_user) { |
| 1329 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
| 1330 | return ERR; |
| 1331 | tigrc_user = buf; |
| 1332 | } |
| 1333 | load_option_file(tigrc_user); |
| 1334 | |
| 1335 | return OK; |
| 1336 | } |
| 1337 | |
| 1338 | |
| 1339 | /* |
| 1340 | * The viewer |
| 1341 | */ |
| 1342 | |
| 1343 | struct view; |
| 1344 | struct view_ops; |
| 1345 | |
| 1346 | /* The display array of active views and the index of the current view. */ |
| 1347 | static struct view *display[2]; |
| 1348 | static unsigned int current_view; |
| 1349 | |
| 1350 | /* Reading from the prompt? */ |
| 1351 | static bool input_mode = FALSE; |
| 1352 | |
| 1353 | #define foreach_displayed_view(view, i) \ |
| 1354 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) |
| 1355 | |
| 1356 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
| 1357 | |
| 1358 | /* Current head and commit ID */ |
| 1359 | static char ref_blob[SIZEOF_REF] = ""; |
| 1360 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
| 1361 | static char ref_head[SIZEOF_REF] = "HEAD"; |
| 1362 | |
| 1363 | struct view { |
| 1364 | const char *name; /* View name */ |
| 1365 | const char *cmd_fmt; /* Default command line format */ |
| 1366 | const char *cmd_env; /* Command line set via environment */ |
| 1367 | const char *id; /* Points to either of ref_{head,commit,blob} */ |
| 1368 | |
| 1369 | struct view_ops *ops; /* View operations */ |
| 1370 | |
| 1371 | enum keymap keymap; /* What keymap does this view have */ |
| 1372 | |
| 1373 | char cmd[SIZEOF_STR]; /* Command buffer */ |
| 1374 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
| 1375 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ |
| 1376 | |
| 1377 | int height, width; /* The width and height of the main window */ |
| 1378 | WINDOW *win; /* The main window */ |
| 1379 | WINDOW *title; /* The title window living below the main window */ |
| 1380 | |
| 1381 | /* Navigation */ |
| 1382 | unsigned long offset; /* Offset of the window top */ |
| 1383 | unsigned long lineno; /* Current line number */ |
| 1384 | |
| 1385 | /* Searching */ |
| 1386 | char grep[SIZEOF_STR]; /* Search string */ |
| 1387 | regex_t *regex; /* Pre-compiled regex */ |
| 1388 | |
| 1389 | /* If non-NULL, points to the view that opened this view. If this view |
| 1390 | * is closed tig will switch back to the parent view. */ |
| 1391 | struct view *parent; |
| 1392 | |
| 1393 | /* Buffering */ |
| 1394 | unsigned long lines; /* Total number of lines */ |
| 1395 | struct line *line; /* Line index */ |
| 1396 | unsigned long line_size;/* Total number of allocated lines */ |
| 1397 | unsigned int digits; /* Number of digits in the lines member. */ |
| 1398 | |
| 1399 | /* Loading */ |
| 1400 | FILE *pipe; |
| 1401 | time_t start_time; |
| 1402 | }; |
| 1403 | |
| 1404 | struct view_ops { |
| 1405 | /* What type of content being displayed. Used in the title bar. */ |
| 1406 | const char *type; |
| 1407 | /* Open and reads in all view content. */ |
| 1408 | bool (*open)(struct view *view); |
| 1409 | /* Read one line; updates view->line. */ |
| 1410 | bool (*read)(struct view *view, char *data); |
| 1411 | /* Draw one line; @lineno must be < view->height. */ |
| 1412 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected); |
| 1413 | /* Depending on view handle a special requests. */ |
| 1414 | enum request (*request)(struct view *view, enum request request, struct line *line); |
| 1415 | /* Search for regex in a line. */ |
| 1416 | bool (*grep)(struct view *view, struct line *line); |
| 1417 | /* Select line */ |
| 1418 | void (*select)(struct view *view, struct line *line); |
| 1419 | }; |
| 1420 | |
| 1421 | static struct view_ops pager_ops; |
| 1422 | static struct view_ops main_ops; |
| 1423 | static struct view_ops tree_ops; |
| 1424 | static struct view_ops blob_ops; |
| 1425 | static struct view_ops help_ops; |
| 1426 | static struct view_ops status_ops; |
| 1427 | static struct view_ops stage_ops; |
| 1428 | |
| 1429 | #define VIEW_STR(name, cmd, env, ref, ops, map) \ |
| 1430 | { name, cmd, #env, ref, ops, map} |
| 1431 | |
| 1432 | #define VIEW_(id, name, ops, ref) \ |
| 1433 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id) |
| 1434 | |
| 1435 | |
| 1436 | static struct view views[] = { |
| 1437 | VIEW_(MAIN, "main", &main_ops, ref_head), |
| 1438 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), |
| 1439 | VIEW_(LOG, "log", &pager_ops, ref_head), |
| 1440 | VIEW_(TREE, "tree", &tree_ops, ref_commit), |
| 1441 | VIEW_(BLOB, "blob", &blob_ops, ref_blob), |
| 1442 | VIEW_(HELP, "help", &help_ops, ""), |
| 1443 | VIEW_(PAGER, "pager", &pager_ops, "stdin"), |
| 1444 | VIEW_(STATUS, "status", &status_ops, ""), |
| 1445 | VIEW_(STAGE, "stage", &stage_ops, ""), |
| 1446 | }; |
| 1447 | |
| 1448 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
| 1449 | |
| 1450 | #define foreach_view(view, i) \ |
| 1451 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
| 1452 | |
| 1453 | #define view_is_displayed(view) \ |
| 1454 | (view == display[0] || view == display[1]) |
| 1455 | |
| 1456 | static bool |
| 1457 | draw_view_line(struct view *view, unsigned int lineno) |
| 1458 | { |
| 1459 | struct line *line; |
| 1460 | bool selected = (view->offset + lineno == view->lineno); |
| 1461 | bool draw_ok; |
| 1462 | |
| 1463 | assert(view_is_displayed(view)); |
| 1464 | |
| 1465 | if (view->offset + lineno >= view->lines) |
| 1466 | return FALSE; |
| 1467 | |
| 1468 | line = &view->line[view->offset + lineno]; |
| 1469 | |
| 1470 | if (selected) { |
| 1471 | line->selected = TRUE; |
| 1472 | view->ops->select(view, line); |
| 1473 | } else if (line->selected) { |
| 1474 | line->selected = FALSE; |
| 1475 | wmove(view->win, lineno, 0); |
| 1476 | wclrtoeol(view->win); |
| 1477 | } |
| 1478 | |
| 1479 | scrollok(view->win, FALSE); |
| 1480 | draw_ok = view->ops->draw(view, line, lineno, selected); |
| 1481 | scrollok(view->win, TRUE); |
| 1482 | |
| 1483 | return draw_ok; |
| 1484 | } |
| 1485 | |
| 1486 | static void |
| 1487 | redraw_view_from(struct view *view, int lineno) |
| 1488 | { |
| 1489 | assert(0 <= lineno && lineno < view->height); |
| 1490 | |
| 1491 | for (; lineno < view->height; lineno++) { |
| 1492 | if (!draw_view_line(view, lineno)) |
| 1493 | break; |
| 1494 | } |
| 1495 | |
| 1496 | redrawwin(view->win); |
| 1497 | if (input_mode) |
| 1498 | wnoutrefresh(view->win); |
| 1499 | else |
| 1500 | wrefresh(view->win); |
| 1501 | } |
| 1502 | |
| 1503 | static void |
| 1504 | redraw_view(struct view *view) |
| 1505 | { |
| 1506 | wclear(view->win); |
| 1507 | redraw_view_from(view, 0); |
| 1508 | } |
| 1509 | |
| 1510 | |
| 1511 | static void |
| 1512 | update_view_title(struct view *view) |
| 1513 | { |
| 1514 | char buf[SIZEOF_STR]; |
| 1515 | char state[SIZEOF_STR]; |
| 1516 | size_t bufpos = 0, statelen = 0; |
| 1517 | |
| 1518 | assert(view_is_displayed(view)); |
| 1519 | |
| 1520 | if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) { |
| 1521 | unsigned int view_lines = view->offset + view->height; |
| 1522 | unsigned int lines = view->lines |
| 1523 | ? MIN(view_lines, view->lines) * 100 / view->lines |
| 1524 | : 0; |
| 1525 | |
| 1526 | string_format_from(state, &statelen, "- %s %d of %d (%d%%)", |
| 1527 | view->ops->type, |
| 1528 | view->lineno + 1, |
| 1529 | view->lines, |
| 1530 | lines); |
| 1531 | |
| 1532 | if (view->pipe) { |
| 1533 | time_t secs = time(NULL) - view->start_time; |
| 1534 | |
| 1535 | /* Three git seconds are a long time ... */ |
| 1536 | if (secs > 2) |
| 1537 | string_format_from(state, &statelen, " %lds", secs); |
| 1538 | } |
| 1539 | } |
| 1540 | |
| 1541 | string_format_from(buf, &bufpos, "[%s]", view->name); |
| 1542 | if (*view->ref && bufpos < view->width) { |
| 1543 | size_t refsize = strlen(view->ref); |
| 1544 | size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen; |
| 1545 | |
| 1546 | if (minsize < view->width) |
| 1547 | refsize = view->width - minsize + 7; |
| 1548 | string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref); |
| 1549 | } |
| 1550 | |
| 1551 | if (statelen && bufpos < view->width) { |
| 1552 | string_format_from(buf, &bufpos, " %s", state); |
| 1553 | } |
| 1554 | |
| 1555 | if (view == display[current_view]) |
| 1556 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); |
| 1557 | else |
| 1558 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); |
| 1559 | |
| 1560 | mvwaddnstr(view->title, 0, 0, buf, bufpos); |
| 1561 | wclrtoeol(view->title); |
| 1562 | wmove(view->title, 0, view->width - 1); |
| 1563 | |
| 1564 | if (input_mode) |
| 1565 | wnoutrefresh(view->title); |
| 1566 | else |
| 1567 | wrefresh(view->title); |
| 1568 | } |
| 1569 | |
| 1570 | static void |
| 1571 | resize_display(void) |
| 1572 | { |
| 1573 | int offset, i; |
| 1574 | struct view *base = display[0]; |
| 1575 | struct view *view = display[1] ? display[1] : display[0]; |
| 1576 | |
| 1577 | /* Setup window dimensions */ |
| 1578 | |
| 1579 | getmaxyx(stdscr, base->height, base->width); |
| 1580 | |
| 1581 | /* Make room for the status window. */ |
| 1582 | base->height -= 1; |
| 1583 | |
| 1584 | if (view != base) { |
| 1585 | /* Horizontal split. */ |
| 1586 | view->width = base->width; |
| 1587 | view->height = SCALE_SPLIT_VIEW(base->height); |
| 1588 | base->height -= view->height; |
| 1589 | |
| 1590 | /* Make room for the title bar. */ |
| 1591 | view->height -= 1; |
| 1592 | } |
| 1593 | |
| 1594 | /* Make room for the title bar. */ |
| 1595 | base->height -= 1; |
| 1596 | |
| 1597 | offset = 0; |
| 1598 | |
| 1599 | foreach_displayed_view (view, i) { |
| 1600 | if (!view->win) { |
| 1601 | view->win = newwin(view->height, 0, offset, 0); |
| 1602 | if (!view->win) |
| 1603 | die("Failed to create %s view", view->name); |
| 1604 | |
| 1605 | scrollok(view->win, TRUE); |
| 1606 | |
| 1607 | view->title = newwin(1, 0, offset + view->height, 0); |
| 1608 | if (!view->title) |
| 1609 | die("Failed to create title window"); |
| 1610 | |
| 1611 | } else { |
| 1612 | wresize(view->win, view->height, view->width); |
| 1613 | mvwin(view->win, offset, 0); |
| 1614 | mvwin(view->title, offset + view->height, 0); |
| 1615 | } |
| 1616 | |
| 1617 | offset += view->height + 1; |
| 1618 | } |
| 1619 | } |
| 1620 | |
| 1621 | static void |
| 1622 | redraw_display(void) |
| 1623 | { |
| 1624 | struct view *view; |
| 1625 | int i; |
| 1626 | |
| 1627 | foreach_displayed_view (view, i) { |
| 1628 | redraw_view(view); |
| 1629 | update_view_title(view); |
| 1630 | } |
| 1631 | } |
| 1632 | |
| 1633 | static void |
| 1634 | update_display_cursor(struct view *view) |
| 1635 | { |
| 1636 | /* Move the cursor to the right-most column of the cursor line. |
| 1637 | * |
| 1638 | * XXX: This could turn out to be a bit expensive, but it ensures that |
| 1639 | * the cursor does not jump around. */ |
| 1640 | if (view->lines) { |
| 1641 | wmove(view->win, view->lineno - view->offset, view->width - 1); |
| 1642 | wrefresh(view->win); |
| 1643 | } |
| 1644 | } |
| 1645 | |
| 1646 | /* |
| 1647 | * Navigation |
| 1648 | */ |
| 1649 | |
| 1650 | /* Scrolling backend */ |
| 1651 | static void |
| 1652 | do_scroll_view(struct view *view, int lines) |
| 1653 | { |
| 1654 | bool redraw_current_line = FALSE; |
| 1655 | |
| 1656 | /* The rendering expects the new offset. */ |
| 1657 | view->offset += lines; |
| 1658 | |
| 1659 | assert(0 <= view->offset && view->offset < view->lines); |
| 1660 | assert(lines); |
| 1661 | |
| 1662 | /* Move current line into the view. */ |
| 1663 | if (view->lineno < view->offset) { |
| 1664 | view->lineno = view->offset; |
| 1665 | redraw_current_line = TRUE; |
| 1666 | } else if (view->lineno >= view->offset + view->height) { |
| 1667 | view->lineno = view->offset + view->height - 1; |
| 1668 | redraw_current_line = TRUE; |
| 1669 | } |
| 1670 | |
| 1671 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
| 1672 | |
| 1673 | /* Redraw the whole screen if scrolling is pointless. */ |
| 1674 | if (view->height < ABS(lines)) { |
| 1675 | redraw_view(view); |
| 1676 | |
| 1677 | } else { |
| 1678 | int line = lines > 0 ? view->height - lines : 0; |
| 1679 | int end = line + ABS(lines); |
| 1680 | |
| 1681 | wscrl(view->win, lines); |
| 1682 | |
| 1683 | for (; line < end; line++) { |
| 1684 | if (!draw_view_line(view, line)) |
| 1685 | break; |
| 1686 | } |
| 1687 | |
| 1688 | if (redraw_current_line) |
| 1689 | draw_view_line(view, view->lineno - view->offset); |
| 1690 | } |
| 1691 | |
| 1692 | redrawwin(view->win); |
| 1693 | wrefresh(view->win); |
| 1694 | report(""); |
| 1695 | } |
| 1696 | |
| 1697 | /* Scroll frontend */ |
| 1698 | static void |
| 1699 | scroll_view(struct view *view, enum request request) |
| 1700 | { |
| 1701 | int lines = 1; |
| 1702 | |
| 1703 | assert(view_is_displayed(view)); |
| 1704 | |
| 1705 | switch (request) { |
| 1706 | case REQ_SCROLL_PAGE_DOWN: |
| 1707 | lines = view->height; |
| 1708 | case REQ_SCROLL_LINE_DOWN: |
| 1709 | if (view->offset + lines > view->lines) |
| 1710 | lines = view->lines - view->offset; |
| 1711 | |
| 1712 | if (lines == 0 || view->offset + view->height >= view->lines) { |
| 1713 | report("Cannot scroll beyond the last line"); |
| 1714 | return; |
| 1715 | } |
| 1716 | break; |
| 1717 | |
| 1718 | case REQ_SCROLL_PAGE_UP: |
| 1719 | lines = view->height; |
| 1720 | case REQ_SCROLL_LINE_UP: |
| 1721 | if (lines > view->offset) |
| 1722 | lines = view->offset; |
| 1723 | |
| 1724 | if (lines == 0) { |
| 1725 | report("Cannot scroll beyond the first line"); |
| 1726 | return; |
| 1727 | } |
| 1728 | |
| 1729 | lines = -lines; |
| 1730 | break; |
| 1731 | |
| 1732 | default: |
| 1733 | die("request %d not handled in switch", request); |
| 1734 | } |
| 1735 | |
| 1736 | do_scroll_view(view, lines); |
| 1737 | } |
| 1738 | |
| 1739 | /* Cursor moving */ |
| 1740 | static void |
| 1741 | move_view(struct view *view, enum request request) |
| 1742 | { |
| 1743 | int scroll_steps = 0; |
| 1744 | int steps; |
| 1745 | |
| 1746 | switch (request) { |
| 1747 | case REQ_MOVE_FIRST_LINE: |
| 1748 | steps = -view->lineno; |
| 1749 | break; |
| 1750 | |
| 1751 | case REQ_MOVE_LAST_LINE: |
| 1752 | steps = view->lines - view->lineno - 1; |
| 1753 | break; |
| 1754 | |
| 1755 | case REQ_MOVE_PAGE_UP: |
| 1756 | steps = view->height > view->lineno |
| 1757 | ? -view->lineno : -view->height; |
| 1758 | break; |
| 1759 | |
| 1760 | case REQ_MOVE_PAGE_DOWN: |
| 1761 | steps = view->lineno + view->height >= view->lines |
| 1762 | ? view->lines - view->lineno - 1 : view->height; |
| 1763 | break; |
| 1764 | |
| 1765 | case REQ_MOVE_UP: |
| 1766 | steps = -1; |
| 1767 | break; |
| 1768 | |
| 1769 | case REQ_MOVE_DOWN: |
| 1770 | steps = 1; |
| 1771 | break; |
| 1772 | |
| 1773 | default: |
| 1774 | die("request %d not handled in switch", request); |
| 1775 | } |
| 1776 | |
| 1777 | if (steps <= 0 && view->lineno == 0) { |
| 1778 | report("Cannot move beyond the first line"); |
| 1779 | return; |
| 1780 | |
| 1781 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
| 1782 | report("Cannot move beyond the last line"); |
| 1783 | return; |
| 1784 | } |
| 1785 | |
| 1786 | /* Move the current line */ |
| 1787 | view->lineno += steps; |
| 1788 | assert(0 <= view->lineno && view->lineno < view->lines); |
| 1789 | |
| 1790 | /* Check whether the view needs to be scrolled */ |
| 1791 | if (view->lineno < view->offset || |
| 1792 | view->lineno >= view->offset + view->height) { |
| 1793 | scroll_steps = steps; |
| 1794 | if (steps < 0 && -steps > view->offset) { |
| 1795 | scroll_steps = -view->offset; |
| 1796 | |
| 1797 | } else if (steps > 0) { |
| 1798 | if (view->lineno == view->lines - 1 && |
| 1799 | view->lines > view->height) { |
| 1800 | scroll_steps = view->lines - view->offset - 1; |
| 1801 | if (scroll_steps >= view->height) |
| 1802 | scroll_steps -= view->height - 1; |
| 1803 | } |
| 1804 | } |
| 1805 | } |
| 1806 | |
| 1807 | if (!view_is_displayed(view)) { |
| 1808 | view->offset += scroll_steps; |
| 1809 | assert(0 <= view->offset && view->offset < view->lines); |
| 1810 | view->ops->select(view, &view->line[view->lineno]); |
| 1811 | return; |
| 1812 | } |
| 1813 | |
| 1814 | /* Repaint the old "current" line if we be scrolling */ |
| 1815 | if (ABS(steps) < view->height) |
| 1816 | draw_view_line(view, view->lineno - steps - view->offset); |
| 1817 | |
| 1818 | if (scroll_steps) { |
| 1819 | do_scroll_view(view, scroll_steps); |
| 1820 | return; |
| 1821 | } |
| 1822 | |
| 1823 | /* Draw the current line */ |
| 1824 | draw_view_line(view, view->lineno - view->offset); |
| 1825 | |
| 1826 | redrawwin(view->win); |
| 1827 | wrefresh(view->win); |
| 1828 | report(""); |
| 1829 | } |
| 1830 | |
| 1831 | |
| 1832 | /* |
| 1833 | * Searching |
| 1834 | */ |
| 1835 | |
| 1836 | static void search_view(struct view *view, enum request request); |
| 1837 | |
| 1838 | static bool |
| 1839 | find_next_line(struct view *view, unsigned long lineno, struct line *line) |
| 1840 | { |
| 1841 | assert(view_is_displayed(view)); |
| 1842 | |
| 1843 | if (!view->ops->grep(view, line)) |
| 1844 | return FALSE; |
| 1845 | |
| 1846 | if (lineno - view->offset >= view->height) { |
| 1847 | view->offset = lineno; |
| 1848 | view->lineno = lineno; |
| 1849 | redraw_view(view); |
| 1850 | |
| 1851 | } else { |
| 1852 | unsigned long old_lineno = view->lineno - view->offset; |
| 1853 | |
| 1854 | view->lineno = lineno; |
| 1855 | draw_view_line(view, old_lineno); |
| 1856 | |
| 1857 | draw_view_line(view, view->lineno - view->offset); |
| 1858 | redrawwin(view->win); |
| 1859 | wrefresh(view->win); |
| 1860 | } |
| 1861 | |
| 1862 | report("Line %ld matches '%s'", lineno + 1, view->grep); |
| 1863 | return TRUE; |
| 1864 | } |
| 1865 | |
| 1866 | static void |
| 1867 | find_next(struct view *view, enum request request) |
| 1868 | { |
| 1869 | unsigned long lineno = view->lineno; |
| 1870 | int direction; |
| 1871 | |
| 1872 | if (!*view->grep) { |
| 1873 | if (!*opt_search) |
| 1874 | report("No previous search"); |
| 1875 | else |
| 1876 | search_view(view, request); |
| 1877 | return; |
| 1878 | } |
| 1879 | |
| 1880 | switch (request) { |
| 1881 | case REQ_SEARCH: |
| 1882 | case REQ_FIND_NEXT: |
| 1883 | direction = 1; |
| 1884 | break; |
| 1885 | |
| 1886 | case REQ_SEARCH_BACK: |
| 1887 | case REQ_FIND_PREV: |
| 1888 | direction = -1; |
| 1889 | break; |
| 1890 | |
| 1891 | default: |
| 1892 | return; |
| 1893 | } |
| 1894 | |
| 1895 | if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV) |
| 1896 | lineno += direction; |
| 1897 | |
| 1898 | /* Note, lineno is unsigned long so will wrap around in which case it |
| 1899 | * will become bigger than view->lines. */ |
| 1900 | for (; lineno < view->lines; lineno += direction) { |
| 1901 | struct line *line = &view->line[lineno]; |
| 1902 | |
| 1903 | if (find_next_line(view, lineno, line)) |
| 1904 | return; |
| 1905 | } |
| 1906 | |
| 1907 | report("No match found for '%s'", view->grep); |
| 1908 | } |
| 1909 | |
| 1910 | static void |
| 1911 | search_view(struct view *view, enum request request) |
| 1912 | { |
| 1913 | int regex_err; |
| 1914 | |
| 1915 | if (view->regex) { |
| 1916 | regfree(view->regex); |
| 1917 | *view->grep = 0; |
| 1918 | } else { |
| 1919 | view->regex = calloc(1, sizeof(*view->regex)); |
| 1920 | if (!view->regex) |
| 1921 | return; |
| 1922 | } |
| 1923 | |
| 1924 | regex_err = regcomp(view->regex, opt_search, REG_EXTENDED); |
| 1925 | if (regex_err != 0) { |
| 1926 | char buf[SIZEOF_STR] = "unknown error"; |
| 1927 | |
| 1928 | regerror(regex_err, view->regex, buf, sizeof(buf)); |
| 1929 | report("Search failed: %s", buf); |
| 1930 | return; |
| 1931 | } |
| 1932 | |
| 1933 | string_copy(view->grep, opt_search); |
| 1934 | |
| 1935 | find_next(view, request); |
| 1936 | } |
| 1937 | |
| 1938 | /* |
| 1939 | * Incremental updating |
| 1940 | */ |
| 1941 | |
| 1942 | static void |
| 1943 | end_update(struct view *view) |
| 1944 | { |
| 1945 | if (!view->pipe) |
| 1946 | return; |
| 1947 | set_nonblocking_input(FALSE); |
| 1948 | if (view->pipe == stdin) |
| 1949 | fclose(view->pipe); |
| 1950 | else |
| 1951 | pclose(view->pipe); |
| 1952 | view->pipe = NULL; |
| 1953 | } |
| 1954 | |
| 1955 | static bool |
| 1956 | begin_update(struct view *view) |
| 1957 | { |
| 1958 | if (view->pipe) |
| 1959 | end_update(view); |
| 1960 | |
| 1961 | if (opt_cmd[0]) { |
| 1962 | string_copy(view->cmd, opt_cmd); |
| 1963 | opt_cmd[0] = 0; |
| 1964 | /* When running random commands, initially show the |
| 1965 | * command in the title. However, it maybe later be |
| 1966 | * overwritten if a commit line is selected. */ |
| 1967 | if (view == VIEW(REQ_VIEW_PAGER)) |
| 1968 | string_copy(view->ref, view->cmd); |
| 1969 | else |
| 1970 | view->ref[0] = 0; |
| 1971 | |
| 1972 | } else if (view == VIEW(REQ_VIEW_TREE)) { |
| 1973 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
| 1974 | char path[SIZEOF_STR]; |
| 1975 | |
| 1976 | if (strcmp(view->vid, view->id)) |
| 1977 | opt_path[0] = path[0] = 0; |
| 1978 | else if (sq_quote(path, 0, opt_path) >= sizeof(path)) |
| 1979 | return FALSE; |
| 1980 | |
| 1981 | if (!string_format(view->cmd, format, view->id, path)) |
| 1982 | return FALSE; |
| 1983 | |
| 1984 | } else { |
| 1985 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
| 1986 | const char *id = view->id; |
| 1987 | |
| 1988 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
| 1989 | return FALSE; |
| 1990 | |
| 1991 | /* Put the current ref_* value to the view title ref |
| 1992 | * member. This is needed by the blob view. Most other |
| 1993 | * views sets it automatically after loading because the |
| 1994 | * first line is a commit line. */ |
| 1995 | string_copy_rev(view->ref, view->id); |
| 1996 | } |
| 1997 | |
| 1998 | /* Special case for the pager view. */ |
| 1999 | if (opt_pipe) { |
| 2000 | view->pipe = opt_pipe; |
| 2001 | opt_pipe = NULL; |
| 2002 | } else { |
| 2003 | view->pipe = popen(view->cmd, "r"); |
| 2004 | } |
| 2005 | |
| 2006 | if (!view->pipe) |
| 2007 | return FALSE; |
| 2008 | |
| 2009 | set_nonblocking_input(TRUE); |
| 2010 | |
| 2011 | view->offset = 0; |
| 2012 | view->lines = 0; |
| 2013 | view->lineno = 0; |
| 2014 | string_copy_rev(view->vid, view->id); |
| 2015 | |
| 2016 | if (view->line) { |
| 2017 | int i; |
| 2018 | |
| 2019 | for (i = 0; i < view->lines; i++) |
| 2020 | if (view->line[i].data) |
| 2021 | free(view->line[i].data); |
| 2022 | |
| 2023 | free(view->line); |
| 2024 | view->line = NULL; |
| 2025 | } |
| 2026 | |
| 2027 | view->start_time = time(NULL); |
| 2028 | |
| 2029 | return TRUE; |
| 2030 | } |
| 2031 | |
| 2032 | static struct line * |
| 2033 | realloc_lines(struct view *view, size_t line_size) |
| 2034 | { |
| 2035 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); |
| 2036 | |
| 2037 | if (!tmp) |
| 2038 | return NULL; |
| 2039 | |
| 2040 | view->line = tmp; |
| 2041 | view->line_size = line_size; |
| 2042 | return view->line; |
| 2043 | } |
| 2044 | |
| 2045 | static bool |
| 2046 | update_view(struct view *view) |
| 2047 | { |
| 2048 | char in_buffer[BUFSIZ]; |
| 2049 | char out_buffer[BUFSIZ * 2]; |
| 2050 | char *line; |
| 2051 | /* The number of lines to read. If too low it will cause too much |
| 2052 | * redrawing (and possible flickering), if too high responsiveness |
| 2053 | * will suffer. */ |
| 2054 | unsigned long lines = view->height; |
| 2055 | int redraw_from = -1; |
| 2056 | |
| 2057 | if (!view->pipe) |
| 2058 | return TRUE; |
| 2059 | |
| 2060 | /* Only redraw if lines are visible. */ |
| 2061 | if (view->offset + view->height >= view->lines) |
| 2062 | redraw_from = view->lines - view->offset; |
| 2063 | |
| 2064 | /* FIXME: This is probably not perfect for backgrounded views. */ |
| 2065 | if (!realloc_lines(view, view->lines + lines)) |
| 2066 | goto alloc_error; |
| 2067 | |
| 2068 | while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) { |
| 2069 | size_t linelen = strlen(line); |
| 2070 | |
| 2071 | if (linelen) |
| 2072 | line[linelen - 1] = 0; |
| 2073 | |
| 2074 | if (opt_iconv != ICONV_NONE) { |
| 2075 | ICONV_CONST char *inbuf = line; |
| 2076 | size_t inlen = linelen; |
| 2077 | |
| 2078 | char *outbuf = out_buffer; |
| 2079 | size_t outlen = sizeof(out_buffer); |
| 2080 | |
| 2081 | size_t ret; |
| 2082 | |
| 2083 | ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen); |
| 2084 | if (ret != (size_t) -1) { |
| 2085 | line = out_buffer; |
| 2086 | linelen = strlen(out_buffer); |
| 2087 | } |
| 2088 | } |
| 2089 | |
| 2090 | if (!view->ops->read(view, line)) |
| 2091 | goto alloc_error; |
| 2092 | |
| 2093 | if (lines-- == 1) |
| 2094 | break; |
| 2095 | } |
| 2096 | |
| 2097 | { |
| 2098 | int digits; |
| 2099 | |
| 2100 | lines = view->lines; |
| 2101 | for (digits = 0; lines; digits++) |
| 2102 | lines /= 10; |
| 2103 | |
| 2104 | /* Keep the displayed view in sync with line number scaling. */ |
| 2105 | if (digits != view->digits) { |
| 2106 | view->digits = digits; |
| 2107 | redraw_from = 0; |
| 2108 | } |
| 2109 | } |
| 2110 | |
| 2111 | if (!view_is_displayed(view)) |
| 2112 | goto check_pipe; |
| 2113 | |
| 2114 | if (view == VIEW(REQ_VIEW_TREE)) { |
| 2115 | /* Clear the view and redraw everything since the tree sorting |
| 2116 | * might have rearranged things. */ |
| 2117 | redraw_view(view); |
| 2118 | |
| 2119 | } else if (redraw_from >= 0) { |
| 2120 | /* If this is an incremental update, redraw the previous line |
| 2121 | * since for commits some members could have changed when |
| 2122 | * loading the main view. */ |
| 2123 | if (redraw_from > 0) |
| 2124 | redraw_from--; |
| 2125 | |
| 2126 | /* Since revision graph visualization requires knowledge |
| 2127 | * about the parent commit, it causes a further one-off |
| 2128 | * needed to be redrawn for incremental updates. */ |
| 2129 | if (redraw_from > 0 && opt_rev_graph) |
| 2130 | redraw_from--; |
| 2131 | |
| 2132 | /* Incrementally draw avoids flickering. */ |
| 2133 | redraw_view_from(view, redraw_from); |
| 2134 | } |
| 2135 | |
| 2136 | /* Update the title _after_ the redraw so that if the redraw picks up a |
| 2137 | * commit reference in view->ref it'll be available here. */ |
| 2138 | update_view_title(view); |
| 2139 | |
| 2140 | check_pipe: |
| 2141 | if (ferror(view->pipe)) { |
| 2142 | report("Failed to read: %s", strerror(errno)); |
| 2143 | goto end; |
| 2144 | |
| 2145 | } else if (feof(view->pipe)) { |
| 2146 | report(""); |
| 2147 | goto end; |
| 2148 | } |
| 2149 | |
| 2150 | return TRUE; |
| 2151 | |
| 2152 | alloc_error: |
| 2153 | report("Allocation failure"); |
| 2154 | |
| 2155 | end: |
| 2156 | view->ops->read(view, NULL); |
| 2157 | end_update(view); |
| 2158 | return FALSE; |
| 2159 | } |
| 2160 | |
| 2161 | static struct line * |
| 2162 | add_line_data(struct view *view, void *data, enum line_type type) |
| 2163 | { |
| 2164 | struct line *line = &view->line[view->lines++]; |
| 2165 | |
| 2166 | memset(line, 0, sizeof(*line)); |
| 2167 | line->type = type; |
| 2168 | line->data = data; |
| 2169 | |
| 2170 | return line; |
| 2171 | } |
| 2172 | |
| 2173 | static struct line * |
| 2174 | add_line_text(struct view *view, char *data, enum line_type type) |
| 2175 | { |
| 2176 | if (data) |
| 2177 | data = strdup(data); |
| 2178 | |
| 2179 | return data ? add_line_data(view, data, type) : NULL; |
| 2180 | } |
| 2181 | |
| 2182 | |
| 2183 | /* |
| 2184 | * View opening |
| 2185 | */ |
| 2186 | |
| 2187 | enum open_flags { |
| 2188 | OPEN_DEFAULT = 0, /* Use default view switching. */ |
| 2189 | OPEN_SPLIT = 1, /* Split current view. */ |
| 2190 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ |
| 2191 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ |
| 2192 | }; |
| 2193 | |
| 2194 | static void |
| 2195 | open_view(struct view *prev, enum request request, enum open_flags flags) |
| 2196 | { |
| 2197 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
| 2198 | bool split = !!(flags & OPEN_SPLIT); |
| 2199 | bool reload = !!(flags & OPEN_RELOAD); |
| 2200 | struct view *view = VIEW(request); |
| 2201 | int nviews = displayed_views(); |
| 2202 | struct view *base_view = display[0]; |
| 2203 | |
| 2204 | if (view == prev && nviews == 1 && !reload) { |
| 2205 | report("Already in %s view", view->name); |
| 2206 | return; |
| 2207 | } |
| 2208 | |
| 2209 | if (view->ops->open) { |
| 2210 | if (!view->ops->open(view)) { |
| 2211 | report("Failed to load %s view", view->name); |
| 2212 | return; |
| 2213 | } |
| 2214 | |
| 2215 | } else if ((reload || strcmp(view->vid, view->id)) && |
| 2216 | !begin_update(view)) { |
| 2217 | report("Failed to load %s view", view->name); |
| 2218 | return; |
| 2219 | } |
| 2220 | |
| 2221 | if (split) { |
| 2222 | display[1] = view; |
| 2223 | if (!backgrounded) |
| 2224 | current_view = 1; |
| 2225 | } else { |
| 2226 | /* Maximize the current view. */ |
| 2227 | memset(display, 0, sizeof(display)); |
| 2228 | current_view = 0; |
| 2229 | display[current_view] = view; |
| 2230 | } |
| 2231 | |
| 2232 | /* Resize the view when switching between split- and full-screen, |
| 2233 | * or when switching between two different full-screen views. */ |
| 2234 | if (nviews != displayed_views() || |
| 2235 | (nviews == 1 && base_view != display[0])) |
| 2236 | resize_display(); |
| 2237 | |
| 2238 | if (split && prev->lineno - prev->offset >= prev->height) { |
| 2239 | /* Take the title line into account. */ |
| 2240 | int lines = prev->lineno - prev->offset - prev->height + 1; |
| 2241 | |
| 2242 | /* Scroll the view that was split if the current line is |
| 2243 | * outside the new limited view. */ |
| 2244 | do_scroll_view(prev, lines); |
| 2245 | } |
| 2246 | |
| 2247 | if (prev && view != prev) { |
| 2248 | if (split && !backgrounded) { |
| 2249 | /* "Blur" the previous view. */ |
| 2250 | update_view_title(prev); |
| 2251 | } |
| 2252 | |
| 2253 | view->parent = prev; |
| 2254 | } |
| 2255 | |
| 2256 | if (view->pipe && view->lines == 0) { |
| 2257 | /* Clear the old view and let the incremental updating refill |
| 2258 | * the screen. */ |
| 2259 | wclear(view->win); |
| 2260 | report(""); |
| 2261 | } else { |
| 2262 | redraw_view(view); |
| 2263 | report(""); |
| 2264 | } |
| 2265 | |
| 2266 | /* If the view is backgrounded the above calls to report() |
| 2267 | * won't redraw the view title. */ |
| 2268 | if (backgrounded) |
| 2269 | update_view_title(view); |
| 2270 | } |
| 2271 | |
| 2272 | static void |
| 2273 | open_external_viewer(const char *cmd) |
| 2274 | { |
| 2275 | def_prog_mode(); /* save current tty modes */ |
| 2276 | endwin(); /* restore original tty modes */ |
| 2277 | system(cmd); |
| 2278 | fprintf(stderr, "Press Enter to continue"); |
| 2279 | getc(stdin); |
| 2280 | reset_prog_mode(); |
| 2281 | redraw_display(); |
| 2282 | } |
| 2283 | |
| 2284 | static void |
| 2285 | open_mergetool(const char *file) |
| 2286 | { |
| 2287 | char cmd[SIZEOF_STR]; |
| 2288 | char file_sq[SIZEOF_STR]; |
| 2289 | |
| 2290 | if (sq_quote(file_sq, 0, file) < sizeof(file_sq) && |
| 2291 | string_format(cmd, "git mergetool %s", file_sq)) { |
| 2292 | open_external_viewer(cmd); |
| 2293 | } |
| 2294 | } |
| 2295 | |
| 2296 | static void |
| 2297 | open_editor(bool from_root, const char *file) |
| 2298 | { |
| 2299 | char cmd[SIZEOF_STR]; |
| 2300 | char file_sq[SIZEOF_STR]; |
| 2301 | char *editor; |
| 2302 | char *prefix = from_root ? opt_cdup : ""; |
| 2303 | |
| 2304 | editor = getenv("GIT_EDITOR"); |
| 2305 | if (!editor && *opt_editor) |
| 2306 | editor = opt_editor; |
| 2307 | if (!editor) |
| 2308 | editor = getenv("VISUAL"); |
| 2309 | if (!editor) |
| 2310 | editor = getenv("EDITOR"); |
| 2311 | if (!editor) |
| 2312 | editor = "vi"; |
| 2313 | |
| 2314 | if (sq_quote(file_sq, 0, file) < sizeof(file_sq) && |
| 2315 | string_format(cmd, "%s %s%s", editor, prefix, file_sq)) { |
| 2316 | open_external_viewer(cmd); |
| 2317 | } |
| 2318 | } |
| 2319 | |
| 2320 | static void |
| 2321 | open_run_request(enum request request) |
| 2322 | { |
| 2323 | struct run_request *req = get_run_request(request); |
| 2324 | char buf[SIZEOF_STR * 2]; |
| 2325 | size_t bufpos; |
| 2326 | char *cmd; |
| 2327 | |
| 2328 | if (!req) { |
| 2329 | report("Unknown run request"); |
| 2330 | return; |
| 2331 | } |
| 2332 | |
| 2333 | bufpos = 0; |
| 2334 | cmd = req->cmd; |
| 2335 | |
| 2336 | while (cmd) { |
| 2337 | char *next = strstr(cmd, "%("); |
| 2338 | int len = next - cmd; |
| 2339 | char *value; |
| 2340 | |
| 2341 | if (!next) { |
| 2342 | len = strlen(cmd); |
| 2343 | value = ""; |
| 2344 | |
| 2345 | } else if (!strncmp(next, "%(head)", 7)) { |
| 2346 | value = ref_head; |
| 2347 | |
| 2348 | } else if (!strncmp(next, "%(commit)", 9)) { |
| 2349 | value = ref_commit; |
| 2350 | |
| 2351 | } else if (!strncmp(next, "%(blob)", 7)) { |
| 2352 | value = ref_blob; |
| 2353 | |
| 2354 | } else { |
| 2355 | report("Unknown replacement in run request: `%s`", req->cmd); |
| 2356 | return; |
| 2357 | } |
| 2358 | |
| 2359 | if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value)) |
| 2360 | return; |
| 2361 | |
| 2362 | if (next) |
| 2363 | next = strchr(next, ')') + 1; |
| 2364 | cmd = next; |
| 2365 | } |
| 2366 | |
| 2367 | open_external_viewer(buf); |
| 2368 | } |
| 2369 | |
| 2370 | /* |
| 2371 | * User request switch noodle |
| 2372 | */ |
| 2373 | |
| 2374 | static int |
| 2375 | view_driver(struct view *view, enum request request) |
| 2376 | { |
| 2377 | int i; |
| 2378 | |
| 2379 | if (request == REQ_NONE) { |
| 2380 | doupdate(); |
| 2381 | return TRUE; |
| 2382 | } |
| 2383 | |
| 2384 | if (request > REQ_NONE) { |
| 2385 | open_run_request(request); |
| 2386 | return TRUE; |
| 2387 | } |
| 2388 | |
| 2389 | if (view && view->lines) { |
| 2390 | request = view->ops->request(view, request, &view->line[view->lineno]); |
| 2391 | if (request == REQ_NONE) |
| 2392 | return TRUE; |
| 2393 | } |
| 2394 | |
| 2395 | switch (request) { |
| 2396 | case REQ_MOVE_UP: |
| 2397 | case REQ_MOVE_DOWN: |
| 2398 | case REQ_MOVE_PAGE_UP: |
| 2399 | case REQ_MOVE_PAGE_DOWN: |
| 2400 | case REQ_MOVE_FIRST_LINE: |
| 2401 | case REQ_MOVE_LAST_LINE: |
| 2402 | move_view(view, request); |
| 2403 | break; |
| 2404 | |
| 2405 | case REQ_SCROLL_LINE_DOWN: |
| 2406 | case REQ_SCROLL_LINE_UP: |
| 2407 | case REQ_SCROLL_PAGE_DOWN: |
| 2408 | case REQ_SCROLL_PAGE_UP: |
| 2409 | scroll_view(view, request); |
| 2410 | break; |
| 2411 | |
| 2412 | case REQ_VIEW_BLOB: |
| 2413 | if (!ref_blob[0]) { |
| 2414 | report("No file chosen, press %s to open tree view", |
| 2415 | get_key(REQ_VIEW_TREE)); |
| 2416 | break; |
| 2417 | } |
| 2418 | open_view(view, request, OPEN_DEFAULT); |
| 2419 | break; |
| 2420 | |
| 2421 | case REQ_VIEW_PAGER: |
| 2422 | if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) { |
| 2423 | report("No pager content, press %s to run command from prompt", |
| 2424 | get_key(REQ_PROMPT)); |
| 2425 | break; |
| 2426 | } |
| 2427 | open_view(view, request, OPEN_DEFAULT); |
| 2428 | break; |
| 2429 | |
| 2430 | case REQ_VIEW_STAGE: |
| 2431 | if (!VIEW(REQ_VIEW_STAGE)->lines) { |
| 2432 | report("No stage content, press %s to open the status view and choose file", |
| 2433 | get_key(REQ_VIEW_STATUS)); |
| 2434 | break; |
| 2435 | } |
| 2436 | open_view(view, request, OPEN_DEFAULT); |
| 2437 | break; |
| 2438 | |
| 2439 | case REQ_VIEW_STATUS: |
| 2440 | if (opt_is_inside_work_tree == FALSE) { |
| 2441 | report("The status view requires a working tree"); |
| 2442 | break; |
| 2443 | } |
| 2444 | open_view(view, request, OPEN_DEFAULT); |
| 2445 | break; |
| 2446 | |
| 2447 | case REQ_VIEW_MAIN: |
| 2448 | case REQ_VIEW_DIFF: |
| 2449 | case REQ_VIEW_LOG: |
| 2450 | case REQ_VIEW_TREE: |
| 2451 | case REQ_VIEW_HELP: |
| 2452 | open_view(view, request, OPEN_DEFAULT); |
| 2453 | break; |
| 2454 | |
| 2455 | case REQ_NEXT: |
| 2456 | case REQ_PREVIOUS: |
| 2457 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; |
| 2458 | |
| 2459 | if ((view == VIEW(REQ_VIEW_DIFF) && |
| 2460 | view->parent == VIEW(REQ_VIEW_MAIN)) || |
| 2461 | (view == VIEW(REQ_VIEW_STAGE) && |
| 2462 | view->parent == VIEW(REQ_VIEW_STATUS)) || |
| 2463 | (view == VIEW(REQ_VIEW_BLOB) && |
| 2464 | view->parent == VIEW(REQ_VIEW_TREE))) { |
| 2465 | int line; |
| 2466 | |
| 2467 | view = view->parent; |
| 2468 | line = view->lineno; |
| 2469 | move_view(view, request); |
| 2470 | if (view_is_displayed(view)) |
| 2471 | update_view_title(view); |
| 2472 | if (line != view->lineno) |
| 2473 | view->ops->request(view, REQ_ENTER, |
| 2474 | &view->line[view->lineno]); |
| 2475 | |
| 2476 | } else { |
| 2477 | move_view(view, request); |
| 2478 | } |
| 2479 | break; |
| 2480 | |
| 2481 | case REQ_VIEW_NEXT: |
| 2482 | { |
| 2483 | int nviews = displayed_views(); |
| 2484 | int next_view = (current_view + 1) % nviews; |
| 2485 | |
| 2486 | if (next_view == current_view) { |
| 2487 | report("Only one view is displayed"); |
| 2488 | break; |
| 2489 | } |
| 2490 | |
| 2491 | current_view = next_view; |
| 2492 | /* Blur out the title of the previous view. */ |
| 2493 | update_view_title(view); |
| 2494 | report(""); |
| 2495 | break; |
| 2496 | } |
| 2497 | case REQ_REFRESH: |
| 2498 | report("Refreshing is not yet supported for the %s view", view->name); |
| 2499 | break; |
| 2500 | |
| 2501 | case REQ_TOGGLE_LINENO: |
| 2502 | opt_line_number = !opt_line_number; |
| 2503 | redraw_display(); |
| 2504 | break; |
| 2505 | |
| 2506 | case REQ_TOGGLE_REV_GRAPH: |
| 2507 | opt_rev_graph = !opt_rev_graph; |
| 2508 | redraw_display(); |
| 2509 | break; |
| 2510 | |
| 2511 | case REQ_PROMPT: |
| 2512 | /* Always reload^Wrerun commands from the prompt. */ |
| 2513 | open_view(view, opt_request, OPEN_RELOAD); |
| 2514 | break; |
| 2515 | |
| 2516 | case REQ_SEARCH: |
| 2517 | case REQ_SEARCH_BACK: |
| 2518 | search_view(view, request); |
| 2519 | break; |
| 2520 | |
| 2521 | case REQ_FIND_NEXT: |
| 2522 | case REQ_FIND_PREV: |
| 2523 | find_next(view, request); |
| 2524 | break; |
| 2525 | |
| 2526 | case REQ_STOP_LOADING: |
| 2527 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
| 2528 | view = &views[i]; |
| 2529 | if (view->pipe) |
| 2530 | report("Stopped loading the %s view", view->name), |
| 2531 | end_update(view); |
| 2532 | } |
| 2533 | break; |
| 2534 | |
| 2535 | case REQ_SHOW_VERSION: |
| 2536 | report("tig-%s (built %s)", TIG_VERSION, __DATE__); |
| 2537 | return TRUE; |
| 2538 | |
| 2539 | case REQ_SCREEN_RESIZE: |
| 2540 | resize_display(); |
| 2541 | /* Fall-through */ |
| 2542 | case REQ_SCREEN_REDRAW: |
| 2543 | redraw_display(); |
| 2544 | break; |
| 2545 | |
| 2546 | case REQ_EDIT: |
| 2547 | report("Nothing to edit"); |
| 2548 | break; |
| 2549 | |
| 2550 | |
| 2551 | case REQ_ENTER: |
| 2552 | report("Nothing to enter"); |
| 2553 | break; |
| 2554 | |
| 2555 | |
| 2556 | case REQ_VIEW_CLOSE: |
| 2557 | /* XXX: Mark closed views by letting view->parent point to the |
| 2558 | * view itself. Parents to closed view should never be |
| 2559 | * followed. */ |
| 2560 | if (view->parent && |
| 2561 | view->parent->parent != view->parent) { |
| 2562 | memset(display, 0, sizeof(display)); |
| 2563 | current_view = 0; |
| 2564 | display[current_view] = view->parent; |
| 2565 | view->parent = view; |
| 2566 | resize_display(); |
| 2567 | redraw_display(); |
| 2568 | break; |
| 2569 | } |
| 2570 | /* Fall-through */ |
| 2571 | case REQ_QUIT: |
| 2572 | return FALSE; |
| 2573 | |
| 2574 | default: |
| 2575 | /* An unknown key will show most commonly used commands. */ |
| 2576 | report("Unknown key, press 'h' for help"); |
| 2577 | return TRUE; |
| 2578 | } |
| 2579 | |
| 2580 | return TRUE; |
| 2581 | } |
| 2582 | |
| 2583 | |
| 2584 | /* |
| 2585 | * Pager backend |
| 2586 | */ |
| 2587 | |
| 2588 | static bool |
| 2589 | pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
| 2590 | { |
| 2591 | char *text = line->data; |
| 2592 | enum line_type type = line->type; |
| 2593 | int textlen = strlen(text); |
| 2594 | int attr; |
| 2595 | |
| 2596 | wmove(view->win, lineno, 0); |
| 2597 | |
| 2598 | if (selected) { |
| 2599 | type = LINE_CURSOR; |
| 2600 | wchgat(view->win, -1, 0, type, NULL); |
| 2601 | } |
| 2602 | |
| 2603 | attr = get_line_attr(type); |
| 2604 | wattrset(view->win, attr); |
| 2605 | |
| 2606 | if (opt_line_number || opt_tab_size < TABSIZE) { |
| 2607 | static char spaces[] = " "; |
| 2608 | int col_offset = 0, col = 0; |
| 2609 | |
| 2610 | if (opt_line_number) { |
| 2611 | unsigned long real_lineno = view->offset + lineno + 1; |
| 2612 | |
| 2613 | if (real_lineno == 1 || |
| 2614 | (real_lineno % opt_num_interval) == 0) { |
| 2615 | wprintw(view->win, "%.*d", view->digits, real_lineno); |
| 2616 | |
| 2617 | } else { |
| 2618 | waddnstr(view->win, spaces, |
| 2619 | MIN(view->digits, STRING_SIZE(spaces))); |
| 2620 | } |
| 2621 | waddstr(view->win, ": "); |
| 2622 | col_offset = view->digits + 2; |
| 2623 | } |
| 2624 | |
| 2625 | while (text && col_offset + col < view->width) { |
| 2626 | int cols_max = view->width - col_offset - col; |
| 2627 | char *pos = text; |
| 2628 | int cols; |
| 2629 | |
| 2630 | if (*text == '\t') { |
| 2631 | text++; |
| 2632 | assert(sizeof(spaces) > TABSIZE); |
| 2633 | pos = spaces; |
| 2634 | cols = opt_tab_size - (col % opt_tab_size); |
| 2635 | |
| 2636 | } else { |
| 2637 | text = strchr(text, '\t'); |
| 2638 | cols = line ? text - pos : strlen(pos); |
| 2639 | } |
| 2640 | |
| 2641 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
| 2642 | col += cols; |
| 2643 | } |
| 2644 | |
| 2645 | } else { |
| 2646 | int col = 0, pos = 0; |
| 2647 | |
| 2648 | for (; pos < textlen && col < view->width; pos++, col++) |
| 2649 | if (text[pos] == '\t') |
| 2650 | col += TABSIZE - (col % TABSIZE) - 1; |
| 2651 | |
| 2652 | waddnstr(view->win, text, pos); |
| 2653 | } |
| 2654 | |
| 2655 | return TRUE; |
| 2656 | } |
| 2657 | |
| 2658 | static bool |
| 2659 | add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep) |
| 2660 | { |
| 2661 | char refbuf[SIZEOF_STR]; |
| 2662 | char *ref = NULL; |
| 2663 | FILE *pipe; |
| 2664 | |
| 2665 | if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id)) |
| 2666 | return TRUE; |
| 2667 | |
| 2668 | pipe = popen(refbuf, "r"); |
| 2669 | if (!pipe) |
| 2670 | return TRUE; |
| 2671 | |
| 2672 | if ((ref = fgets(refbuf, sizeof(refbuf), pipe))) |
| 2673 | ref = chomp_string(ref); |
| 2674 | pclose(pipe); |
| 2675 | |
| 2676 | if (!ref || !*ref) |
| 2677 | return TRUE; |
| 2678 | |
| 2679 | /* This is the only fatal call, since it can "corrupt" the buffer. */ |
| 2680 | if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref)) |
| 2681 | return FALSE; |
| 2682 | |
| 2683 | return TRUE; |
| 2684 | } |
| 2685 | |
| 2686 | static void |
| 2687 | add_pager_refs(struct view *view, struct line *line) |
| 2688 | { |
| 2689 | char buf[SIZEOF_STR]; |
| 2690 | char *commit_id = line->data + STRING_SIZE("commit "); |
| 2691 | struct ref **refs; |
| 2692 | size_t bufpos = 0, refpos = 0; |
| 2693 | const char *sep = "Refs: "; |
| 2694 | bool is_tag = FALSE; |
| 2695 | |
| 2696 | assert(line->type == LINE_COMMIT); |
| 2697 | |
| 2698 | refs = get_refs(commit_id); |
| 2699 | if (!refs) { |
| 2700 | if (view == VIEW(REQ_VIEW_DIFF)) |
| 2701 | goto try_add_describe_ref; |
| 2702 | return; |
| 2703 | } |
| 2704 | |
| 2705 | do { |
| 2706 | struct ref *ref = refs[refpos]; |
| 2707 | char *fmt = ref->tag ? "%s[%s]" : |
| 2708 | ref->remote ? "%s<%s>" : "%s%s"; |
| 2709 | |
| 2710 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
| 2711 | return; |
| 2712 | sep = ", "; |
| 2713 | if (ref->tag) |
| 2714 | is_tag = TRUE; |
| 2715 | } while (refs[refpos++]->next); |
| 2716 | |
| 2717 | if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) { |
| 2718 | try_add_describe_ref: |
| 2719 | /* Add <tag>-g<commit_id> "fake" reference. */ |
| 2720 | if (!add_describe_ref(buf, &bufpos, commit_id, sep)) |
| 2721 | return; |
| 2722 | } |
| 2723 | |
| 2724 | if (bufpos == 0) |
| 2725 | return; |
| 2726 | |
| 2727 | if (!realloc_lines(view, view->line_size + 1)) |
| 2728 | return; |
| 2729 | |
| 2730 | add_line_text(view, buf, LINE_PP_REFS); |
| 2731 | } |
| 2732 | |
| 2733 | static bool |
| 2734 | pager_read(struct view *view, char *data) |
| 2735 | { |
| 2736 | struct line *line; |
| 2737 | |
| 2738 | if (!data) |
| 2739 | return TRUE; |
| 2740 | |
| 2741 | line = add_line_text(view, data, get_line_type(data)); |
| 2742 | if (!line) |
| 2743 | return FALSE; |
| 2744 | |
| 2745 | if (line->type == LINE_COMMIT && |
| 2746 | (view == VIEW(REQ_VIEW_DIFF) || |
| 2747 | view == VIEW(REQ_VIEW_LOG))) |
| 2748 | add_pager_refs(view, line); |
| 2749 | |
| 2750 | return TRUE; |
| 2751 | } |
| 2752 | |
| 2753 | static enum request |
| 2754 | pager_request(struct view *view, enum request request, struct line *line) |
| 2755 | { |
| 2756 | int split = 0; |
| 2757 | |
| 2758 | if (request != REQ_ENTER) |
| 2759 | return request; |
| 2760 | |
| 2761 | if (line->type == LINE_COMMIT && |
| 2762 | (view == VIEW(REQ_VIEW_LOG) || |
| 2763 | view == VIEW(REQ_VIEW_PAGER))) { |
| 2764 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
| 2765 | split = 1; |
| 2766 | } |
| 2767 | |
| 2768 | /* Always scroll the view even if it was split. That way |
| 2769 | * you can use Enter to scroll through the log view and |
| 2770 | * split open each commit diff. */ |
| 2771 | scroll_view(view, REQ_SCROLL_LINE_DOWN); |
| 2772 | |
| 2773 | /* FIXME: A minor workaround. Scrolling the view will call report("") |
| 2774 | * but if we are scrolling a non-current view this won't properly |
| 2775 | * update the view title. */ |
| 2776 | if (split) |
| 2777 | update_view_title(view); |
| 2778 | |
| 2779 | return REQ_NONE; |
| 2780 | } |
| 2781 | |
| 2782 | static bool |
| 2783 | pager_grep(struct view *view, struct line *line) |
| 2784 | { |
| 2785 | regmatch_t pmatch; |
| 2786 | char *text = line->data; |
| 2787 | |
| 2788 | if (!*text) |
| 2789 | return FALSE; |
| 2790 | |
| 2791 | if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH) |
| 2792 | return FALSE; |
| 2793 | |
| 2794 | return TRUE; |
| 2795 | } |
| 2796 | |
| 2797 | static void |
| 2798 | pager_select(struct view *view, struct line *line) |
| 2799 | { |
| 2800 | if (line->type == LINE_COMMIT) { |
| 2801 | char *text = line->data + STRING_SIZE("commit "); |
| 2802 | |
| 2803 | if (view != VIEW(REQ_VIEW_PAGER)) |
| 2804 | string_copy_rev(view->ref, text); |
| 2805 | string_copy_rev(ref_commit, text); |
| 2806 | } |
| 2807 | } |
| 2808 | |
| 2809 | static struct view_ops pager_ops = { |
| 2810 | "line", |
| 2811 | NULL, |
| 2812 | pager_read, |
| 2813 | pager_draw, |
| 2814 | pager_request, |
| 2815 | pager_grep, |
| 2816 | pager_select, |
| 2817 | }; |
| 2818 | |
| 2819 | |
| 2820 | /* |
| 2821 | * Help backend |
| 2822 | */ |
| 2823 | |
| 2824 | static bool |
| 2825 | help_open(struct view *view) |
| 2826 | { |
| 2827 | char buf[BUFSIZ]; |
| 2828 | int lines = ARRAY_SIZE(req_info) + 2; |
| 2829 | int i; |
| 2830 | |
| 2831 | if (view->lines > 0) |
| 2832 | return TRUE; |
| 2833 | |
| 2834 | for (i = 0; i < ARRAY_SIZE(req_info); i++) |
| 2835 | if (!req_info[i].request) |
| 2836 | lines++; |
| 2837 | |
| 2838 | lines += run_requests + 1; |
| 2839 | |
| 2840 | view->line = calloc(lines, sizeof(*view->line)); |
| 2841 | if (!view->line) |
| 2842 | return FALSE; |
| 2843 | |
| 2844 | add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT); |
| 2845 | |
| 2846 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { |
| 2847 | char *key; |
| 2848 | |
| 2849 | if (req_info[i].request == REQ_NONE) |
| 2850 | continue; |
| 2851 | |
| 2852 | if (!req_info[i].request) { |
| 2853 | add_line_text(view, "", LINE_DEFAULT); |
| 2854 | add_line_text(view, req_info[i].help, LINE_DEFAULT); |
| 2855 | continue; |
| 2856 | } |
| 2857 | |
| 2858 | key = get_key(req_info[i].request); |
| 2859 | if (!*key) |
| 2860 | key = "(no key defined)"; |
| 2861 | |
| 2862 | if (!string_format(buf, " %-25s %s", key, req_info[i].help)) |
| 2863 | continue; |
| 2864 | |
| 2865 | add_line_text(view, buf, LINE_DEFAULT); |
| 2866 | } |
| 2867 | |
| 2868 | if (run_requests) { |
| 2869 | add_line_text(view, "", LINE_DEFAULT); |
| 2870 | add_line_text(view, "External commands:", LINE_DEFAULT); |
| 2871 | } |
| 2872 | |
| 2873 | for (i = 0; i < run_requests; i++) { |
| 2874 | struct run_request *req = get_run_request(REQ_NONE + i + 1); |
| 2875 | char *key; |
| 2876 | |
| 2877 | if (!req) |
| 2878 | continue; |
| 2879 | |
| 2880 | key = get_key_name(req->key); |
| 2881 | if (!*key) |
| 2882 | key = "(no key defined)"; |
| 2883 | |
| 2884 | if (!string_format(buf, " %-10s %-14s `%s`", |
| 2885 | keymap_table[req->keymap].name, |
| 2886 | key, req->cmd)) |
| 2887 | continue; |
| 2888 | |
| 2889 | add_line_text(view, buf, LINE_DEFAULT); |
| 2890 | } |
| 2891 | |
| 2892 | return TRUE; |
| 2893 | } |
| 2894 | |
| 2895 | static struct view_ops help_ops = { |
| 2896 | "line", |
| 2897 | help_open, |
| 2898 | NULL, |
| 2899 | pager_draw, |
| 2900 | pager_request, |
| 2901 | pager_grep, |
| 2902 | pager_select, |
| 2903 | }; |
| 2904 | |
| 2905 | |
| 2906 | /* |
| 2907 | * Tree backend |
| 2908 | */ |
| 2909 | |
| 2910 | struct tree_stack_entry { |
| 2911 | struct tree_stack_entry *prev; /* Entry below this in the stack */ |
| 2912 | unsigned long lineno; /* Line number to restore */ |
| 2913 | char *name; /* Position of name in opt_path */ |
| 2914 | }; |
| 2915 | |
| 2916 | /* The top of the path stack. */ |
| 2917 | static struct tree_stack_entry *tree_stack = NULL; |
| 2918 | unsigned long tree_lineno = 0; |
| 2919 | |
| 2920 | static void |
| 2921 | pop_tree_stack_entry(void) |
| 2922 | { |
| 2923 | struct tree_stack_entry *entry = tree_stack; |
| 2924 | |
| 2925 | tree_lineno = entry->lineno; |
| 2926 | entry->name[0] = 0; |
| 2927 | tree_stack = entry->prev; |
| 2928 | free(entry); |
| 2929 | } |
| 2930 | |
| 2931 | static void |
| 2932 | push_tree_stack_entry(char *name, unsigned long lineno) |
| 2933 | { |
| 2934 | struct tree_stack_entry *entry = calloc(1, sizeof(*entry)); |
| 2935 | size_t pathlen = strlen(opt_path); |
| 2936 | |
| 2937 | if (!entry) |
| 2938 | return; |
| 2939 | |
| 2940 | entry->prev = tree_stack; |
| 2941 | entry->name = opt_path + pathlen; |
| 2942 | tree_stack = entry; |
| 2943 | |
| 2944 | if (!string_format_from(opt_path, &pathlen, "%s/", name)) { |
| 2945 | pop_tree_stack_entry(); |
| 2946 | return; |
| 2947 | } |
| 2948 | |
| 2949 | /* Move the current line to the first tree entry. */ |
| 2950 | tree_lineno = 1; |
| 2951 | entry->lineno = lineno; |
| 2952 | } |
| 2953 | |
| 2954 | /* Parse output from git-ls-tree(1): |
| 2955 | * |
| 2956 | * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile |
| 2957 | * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README |
| 2958 | * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c |
| 2959 | * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf |
| 2960 | */ |
| 2961 | |
| 2962 | #define SIZEOF_TREE_ATTR \ |
| 2963 | STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t") |
| 2964 | |
| 2965 | #define TREE_UP_FORMAT "040000 tree %s\t.." |
| 2966 | |
| 2967 | static int |
| 2968 | tree_compare_entry(enum line_type type1, char *name1, |
| 2969 | enum line_type type2, char *name2) |
| 2970 | { |
| 2971 | if (type1 != type2) { |
| 2972 | if (type1 == LINE_TREE_DIR) |
| 2973 | return -1; |
| 2974 | return 1; |
| 2975 | } |
| 2976 | |
| 2977 | return strcmp(name1, name2); |
| 2978 | } |
| 2979 | |
| 2980 | static bool |
| 2981 | tree_read(struct view *view, char *text) |
| 2982 | { |
| 2983 | size_t textlen = text ? strlen(text) : 0; |
| 2984 | char buf[SIZEOF_STR]; |
| 2985 | unsigned long pos; |
| 2986 | enum line_type type; |
| 2987 | bool first_read = view->lines == 0; |
| 2988 | |
| 2989 | if (textlen <= SIZEOF_TREE_ATTR) |
| 2990 | return FALSE; |
| 2991 | |
| 2992 | type = text[STRING_SIZE("100644 ")] == 't' |
| 2993 | ? LINE_TREE_DIR : LINE_TREE_FILE; |
| 2994 | |
| 2995 | if (first_read) { |
| 2996 | /* Add path info line */ |
| 2997 | if (!string_format(buf, "Directory path /%s", opt_path) || |
| 2998 | !realloc_lines(view, view->line_size + 1) || |
| 2999 | !add_line_text(view, buf, LINE_DEFAULT)) |
| 3000 | return FALSE; |
| 3001 | |
| 3002 | /* Insert "link" to parent directory. */ |
| 3003 | if (*opt_path) { |
| 3004 | if (!string_format(buf, TREE_UP_FORMAT, view->ref) || |
| 3005 | !realloc_lines(view, view->line_size + 1) || |
| 3006 | !add_line_text(view, buf, LINE_TREE_DIR)) |
| 3007 | return FALSE; |
| 3008 | } |
| 3009 | } |
| 3010 | |
| 3011 | /* Strip the path part ... */ |
| 3012 | if (*opt_path) { |
| 3013 | size_t pathlen = textlen - SIZEOF_TREE_ATTR; |
| 3014 | size_t striplen = strlen(opt_path); |
| 3015 | char *path = text + SIZEOF_TREE_ATTR; |
| 3016 | |
| 3017 | if (pathlen > striplen) |
| 3018 | memmove(path, path + striplen, |
| 3019 | pathlen - striplen + 1); |
| 3020 | } |
| 3021 | |
| 3022 | /* Skip "Directory ..." and ".." line. */ |
| 3023 | for (pos = 1 + !!*opt_path; pos < view->lines; pos++) { |
| 3024 | struct line *line = &view->line[pos]; |
| 3025 | char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR; |
| 3026 | char *path2 = text + SIZEOF_TREE_ATTR; |
| 3027 | int cmp = tree_compare_entry(line->type, path1, type, path2); |
| 3028 | |
| 3029 | if (cmp <= 0) |
| 3030 | continue; |
| 3031 | |
| 3032 | text = strdup(text); |
| 3033 | if (!text) |
| 3034 | return FALSE; |
| 3035 | |
| 3036 | if (view->lines > pos) |
| 3037 | memmove(&view->line[pos + 1], &view->line[pos], |
| 3038 | (view->lines - pos) * sizeof(*line)); |
| 3039 | |
| 3040 | line = &view->line[pos]; |
| 3041 | line->data = text; |
| 3042 | line->type = type; |
| 3043 | view->lines++; |
| 3044 | return TRUE; |
| 3045 | } |
| 3046 | |
| 3047 | if (!add_line_text(view, text, type)) |
| 3048 | return FALSE; |
| 3049 | |
| 3050 | if (tree_lineno > view->lineno) { |
| 3051 | view->lineno = tree_lineno; |
| 3052 | tree_lineno = 0; |
| 3053 | } |
| 3054 | |
| 3055 | return TRUE; |
| 3056 | } |
| 3057 | |
| 3058 | static enum request |
| 3059 | tree_request(struct view *view, enum request request, struct line *line) |
| 3060 | { |
| 3061 | enum open_flags flags; |
| 3062 | |
| 3063 | if (request == REQ_TREE_PARENT) { |
| 3064 | if (*opt_path) { |
| 3065 | /* fake 'cd ..' */ |
| 3066 | request = REQ_ENTER; |
| 3067 | line = &view->line[1]; |
| 3068 | } else { |
| 3069 | /* quit view if at top of tree */ |
| 3070 | return REQ_VIEW_CLOSE; |
| 3071 | } |
| 3072 | } |
| 3073 | if (request != REQ_ENTER) |
| 3074 | return request; |
| 3075 | |
| 3076 | /* Cleanup the stack if the tree view is at a different tree. */ |
| 3077 | while (!*opt_path && tree_stack) |
| 3078 | pop_tree_stack_entry(); |
| 3079 | |
| 3080 | switch (line->type) { |
| 3081 | case LINE_TREE_DIR: |
| 3082 | /* Depending on whether it is a subdir or parent (updir?) link |
| 3083 | * mangle the path buffer. */ |
| 3084 | if (line == &view->line[1] && *opt_path) { |
| 3085 | pop_tree_stack_entry(); |
| 3086 | |
| 3087 | } else { |
| 3088 | char *data = line->data; |
| 3089 | char *basename = data + SIZEOF_TREE_ATTR; |
| 3090 | |
| 3091 | push_tree_stack_entry(basename, view->lineno); |
| 3092 | } |
| 3093 | |
| 3094 | /* Trees and subtrees share the same ID, so they are not not |
| 3095 | * unique like blobs. */ |
| 3096 | flags = OPEN_RELOAD; |
| 3097 | request = REQ_VIEW_TREE; |
| 3098 | break; |
| 3099 | |
| 3100 | case LINE_TREE_FILE: |
| 3101 | flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
| 3102 | request = REQ_VIEW_BLOB; |
| 3103 | break; |
| 3104 | |
| 3105 | default: |
| 3106 | return TRUE; |
| 3107 | } |
| 3108 | |
| 3109 | open_view(view, request, flags); |
| 3110 | if (request == REQ_VIEW_TREE) { |
| 3111 | view->lineno = tree_lineno; |
| 3112 | } |
| 3113 | |
| 3114 | return REQ_NONE; |
| 3115 | } |
| 3116 | |
| 3117 | static void |
| 3118 | tree_select(struct view *view, struct line *line) |
| 3119 | { |
| 3120 | char *text = line->data + STRING_SIZE("100644 blob "); |
| 3121 | |
| 3122 | if (line->type == LINE_TREE_FILE) { |
| 3123 | string_copy_rev(ref_blob, text); |
| 3124 | |
| 3125 | } else if (line->type != LINE_TREE_DIR) { |
| 3126 | return; |
| 3127 | } |
| 3128 | |
| 3129 | string_copy_rev(view->ref, text); |
| 3130 | } |
| 3131 | |
| 3132 | static struct view_ops tree_ops = { |
| 3133 | "file", |
| 3134 | NULL, |
| 3135 | tree_read, |
| 3136 | pager_draw, |
| 3137 | tree_request, |
| 3138 | pager_grep, |
| 3139 | tree_select, |
| 3140 | }; |
| 3141 | |
| 3142 | static bool |
| 3143 | blob_read(struct view *view, char *line) |
| 3144 | { |
| 3145 | return add_line_text(view, line, LINE_DEFAULT) != NULL; |
| 3146 | } |
| 3147 | |
| 3148 | static struct view_ops blob_ops = { |
| 3149 | "line", |
| 3150 | NULL, |
| 3151 | blob_read, |
| 3152 | pager_draw, |
| 3153 | pager_request, |
| 3154 | pager_grep, |
| 3155 | pager_select, |
| 3156 | }; |
| 3157 | |
| 3158 | |
| 3159 | /* |
| 3160 | * Status backend |
| 3161 | */ |
| 3162 | |
| 3163 | struct status { |
| 3164 | char status; |
| 3165 | struct { |
| 3166 | mode_t mode; |
| 3167 | char rev[SIZEOF_REV]; |
| 3168 | char name[SIZEOF_STR]; |
| 3169 | } old; |
| 3170 | struct { |
| 3171 | mode_t mode; |
| 3172 | char rev[SIZEOF_REV]; |
| 3173 | char name[SIZEOF_STR]; |
| 3174 | } new; |
| 3175 | }; |
| 3176 | |
| 3177 | static struct status stage_status; |
| 3178 | static enum line_type stage_line_type; |
| 3179 | |
| 3180 | /* Get fields from the diff line: |
| 3181 | * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M |
| 3182 | */ |
| 3183 | static inline bool |
| 3184 | status_get_diff(struct status *file, char *buf, size_t bufsize) |
| 3185 | { |
| 3186 | char *old_mode = buf + 1; |
| 3187 | char *new_mode = buf + 8; |
| 3188 | char *old_rev = buf + 15; |
| 3189 | char *new_rev = buf + 56; |
| 3190 | char *status = buf + 97; |
| 3191 | |
| 3192 | if (bufsize < 99 || |
| 3193 | old_mode[-1] != ':' || |
| 3194 | new_mode[-1] != ' ' || |
| 3195 | old_rev[-1] != ' ' || |
| 3196 | new_rev[-1] != ' ' || |
| 3197 | status[-1] != ' ') |
| 3198 | return FALSE; |
| 3199 | |
| 3200 | file->status = *status; |
| 3201 | |
| 3202 | string_copy_rev(file->old.rev, old_rev); |
| 3203 | string_copy_rev(file->new.rev, new_rev); |
| 3204 | |
| 3205 | file->old.mode = strtoul(old_mode, NULL, 8); |
| 3206 | file->new.mode = strtoul(new_mode, NULL, 8); |
| 3207 | |
| 3208 | file->old.name[0] = file->new.name[0] = 0; |
| 3209 | |
| 3210 | return TRUE; |
| 3211 | } |
| 3212 | |
| 3213 | static bool |
| 3214 | status_run(struct view *view, const char cmd[], bool diff, enum line_type type) |
| 3215 | { |
| 3216 | struct status *file = NULL; |
| 3217 | struct status *unmerged = NULL; |
| 3218 | char buf[SIZEOF_STR * 4]; |
| 3219 | size_t bufsize = 0; |
| 3220 | FILE *pipe; |
| 3221 | |
| 3222 | pipe = popen(cmd, "r"); |
| 3223 | if (!pipe) |
| 3224 | return FALSE; |
| 3225 | |
| 3226 | add_line_data(view, NULL, type); |
| 3227 | |
| 3228 | while (!feof(pipe) && !ferror(pipe)) { |
| 3229 | char *sep; |
| 3230 | size_t readsize; |
| 3231 | |
| 3232 | readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe); |
| 3233 | if (!readsize) |
| 3234 | break; |
| 3235 | bufsize += readsize; |
| 3236 | |
| 3237 | /* Process while we have NUL chars. */ |
| 3238 | while ((sep = memchr(buf, 0, bufsize))) { |
| 3239 | size_t sepsize = sep - buf + 1; |
| 3240 | |
| 3241 | if (!file) { |
| 3242 | if (!realloc_lines(view, view->line_size + 1)) |
| 3243 | goto error_out; |
| 3244 | |
| 3245 | file = calloc(1, sizeof(*file)); |
| 3246 | if (!file) |
| 3247 | goto error_out; |
| 3248 | |
| 3249 | add_line_data(view, file, type); |
| 3250 | } |
| 3251 | |
| 3252 | /* Parse diff info part. */ |
| 3253 | if (!diff) { |
| 3254 | file->status = '?'; |
| 3255 | |
| 3256 | } else if (!file->status) { |
| 3257 | if (!status_get_diff(file, buf, sepsize)) |
| 3258 | goto error_out; |
| 3259 | |
| 3260 | bufsize -= sepsize; |
| 3261 | memmove(buf, sep + 1, bufsize); |
| 3262 | |
| 3263 | sep = memchr(buf, 0, bufsize); |
| 3264 | if (!sep) |
| 3265 | break; |
| 3266 | sepsize = sep - buf + 1; |
| 3267 | |
| 3268 | /* Collapse all 'M'odified entries that |
| 3269 | * follow a associated 'U'nmerged entry. |
| 3270 | */ |
| 3271 | if (file->status == 'U') { |
| 3272 | unmerged = file; |
| 3273 | |
| 3274 | } else if (unmerged) { |
| 3275 | int collapse = !strcmp(buf, unmerged->new.name); |
| 3276 | |
| 3277 | unmerged = NULL; |
| 3278 | if (collapse) { |
| 3279 | free(file); |
| 3280 | view->lines--; |
| 3281 | continue; |
| 3282 | } |
| 3283 | } |
| 3284 | } |
| 3285 | |
| 3286 | /* Grab the old name for rename/copy. */ |
| 3287 | if (!*file->old.name && |
| 3288 | (file->status == 'R' || file->status == 'C')) { |
| 3289 | sepsize = sep - buf + 1; |
| 3290 | string_ncopy(file->old.name, buf, sepsize); |
| 3291 | bufsize -= sepsize; |
| 3292 | memmove(buf, sep + 1, bufsize); |
| 3293 | |
| 3294 | sep = memchr(buf, 0, bufsize); |
| 3295 | if (!sep) |
| 3296 | break; |
| 3297 | sepsize = sep - buf + 1; |
| 3298 | } |
| 3299 | |
| 3300 | /* git-ls-files just delivers a NUL separated |
| 3301 | * list of file names similar to the second half |
| 3302 | * of the git-diff-* output. */ |
| 3303 | string_ncopy(file->new.name, buf, sepsize); |
| 3304 | if (!*file->old.name) |
| 3305 | string_copy(file->old.name, file->new.name); |
| 3306 | bufsize -= sepsize; |
| 3307 | memmove(buf, sep + 1, bufsize); |
| 3308 | file = NULL; |
| 3309 | } |
| 3310 | } |
| 3311 | |
| 3312 | if (ferror(pipe)) { |
| 3313 | error_out: |
| 3314 | pclose(pipe); |
| 3315 | return FALSE; |
| 3316 | } |
| 3317 | |
| 3318 | if (!view->line[view->lines - 1].data) |
| 3319 | add_line_data(view, NULL, LINE_STAT_NONE); |
| 3320 | |
| 3321 | pclose(pipe); |
| 3322 | return TRUE; |
| 3323 | } |
| 3324 | |
| 3325 | /* Don't show unmerged entries in the staged section. */ |
| 3326 | #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD" |
| 3327 | #define STATUS_DIFF_FILES_CMD "git diff-files -z" |
| 3328 | #define STATUS_LIST_OTHER_CMD \ |
| 3329 | "git ls-files -z --others --exclude-per-directory=.gitignore" |
| 3330 | |
| 3331 | #define STATUS_DIFF_INDEX_SHOW_CMD \ |
| 3332 | "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null" |
| 3333 | |
| 3334 | #define STATUS_DIFF_FILES_SHOW_CMD \ |
| 3335 | "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null" |
| 3336 | |
| 3337 | /* First parse staged info using git-diff-index(1), then parse unstaged |
| 3338 | * info using git-diff-files(1), and finally untracked files using |
| 3339 | * git-ls-files(1). */ |
| 3340 | static bool |
| 3341 | status_open(struct view *view) |
| 3342 | { |
| 3343 | struct stat statbuf; |
| 3344 | char exclude[SIZEOF_STR]; |
| 3345 | char cmd[SIZEOF_STR]; |
| 3346 | unsigned long prev_lineno = view->lineno; |
| 3347 | size_t i; |
| 3348 | |
| 3349 | for (i = 0; i < view->lines; i++) |
| 3350 | free(view->line[i].data); |
| 3351 | free(view->line); |
| 3352 | view->lines = view->line_size = view->lineno = 0; |
| 3353 | view->line = NULL; |
| 3354 | |
| 3355 | if (!realloc_lines(view, view->line_size + 6)) |
| 3356 | return FALSE; |
| 3357 | |
| 3358 | if (!string_format(exclude, "%s/info/exclude", opt_git_dir)) |
| 3359 | return FALSE; |
| 3360 | |
| 3361 | string_copy(cmd, STATUS_LIST_OTHER_CMD); |
| 3362 | |
| 3363 | if (stat(exclude, &statbuf) >= 0) { |
| 3364 | size_t cmdsize = strlen(cmd); |
| 3365 | |
| 3366 | if (!string_format_from(cmd, &cmdsize, " %s", "--exclude-from=") || |
| 3367 | sq_quote(cmd, cmdsize, exclude) >= sizeof(cmd)) |
| 3368 | return FALSE; |
| 3369 | } |
| 3370 | |
| 3371 | if (!status_run(view, STATUS_DIFF_INDEX_CMD, TRUE, LINE_STAT_STAGED) || |
| 3372 | !status_run(view, STATUS_DIFF_FILES_CMD, TRUE, LINE_STAT_UNSTAGED) || |
| 3373 | !status_run(view, cmd, FALSE, LINE_STAT_UNTRACKED)) |
| 3374 | return FALSE; |
| 3375 | |
| 3376 | /* If all went well restore the previous line number to stay in |
| 3377 | * the context. */ |
| 3378 | if (prev_lineno < view->lines) |
| 3379 | view->lineno = prev_lineno; |
| 3380 | else |
| 3381 | view->lineno = view->lines - 1; |
| 3382 | |
| 3383 | return TRUE; |
| 3384 | } |
| 3385 | |
| 3386 | static bool |
| 3387 | status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
| 3388 | { |
| 3389 | struct status *status = line->data; |
| 3390 | |
| 3391 | wmove(view->win, lineno, 0); |
| 3392 | |
| 3393 | if (selected) { |
| 3394 | wattrset(view->win, get_line_attr(LINE_CURSOR)); |
| 3395 | wchgat(view->win, -1, 0, LINE_CURSOR, NULL); |
| 3396 | |
| 3397 | } else if (!status && line->type != LINE_STAT_NONE) { |
| 3398 | wattrset(view->win, get_line_attr(LINE_STAT_SECTION)); |
| 3399 | wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL); |
| 3400 | |
| 3401 | } else { |
| 3402 | wattrset(view->win, get_line_attr(line->type)); |
| 3403 | } |
| 3404 | |
| 3405 | if (!status) { |
| 3406 | char *text; |
| 3407 | |
| 3408 | switch (line->type) { |
| 3409 | case LINE_STAT_STAGED: |
| 3410 | text = "Changes to be committed:"; |
| 3411 | break; |
| 3412 | |
| 3413 | case LINE_STAT_UNSTAGED: |
| 3414 | text = "Changed but not updated:"; |
| 3415 | break; |
| 3416 | |
| 3417 | case LINE_STAT_UNTRACKED: |
| 3418 | text = "Untracked files:"; |
| 3419 | break; |
| 3420 | |
| 3421 | case LINE_STAT_NONE: |
| 3422 | text = " (no files)"; |
| 3423 | break; |
| 3424 | |
| 3425 | default: |
| 3426 | return FALSE; |
| 3427 | } |
| 3428 | |
| 3429 | waddstr(view->win, text); |
| 3430 | return TRUE; |
| 3431 | } |
| 3432 | |
| 3433 | waddch(view->win, status->status); |
| 3434 | if (!selected) |
| 3435 | wattrset(view->win, A_NORMAL); |
| 3436 | wmove(view->win, lineno, 4); |
| 3437 | waddstr(view->win, status->new.name); |
| 3438 | |
| 3439 | return TRUE; |
| 3440 | } |
| 3441 | |
| 3442 | static enum request |
| 3443 | status_enter(struct view *view, struct line *line) |
| 3444 | { |
| 3445 | struct status *status = line->data; |
| 3446 | char oldpath[SIZEOF_STR] = ""; |
| 3447 | char newpath[SIZEOF_STR] = ""; |
| 3448 | char *info; |
| 3449 | size_t cmdsize = 0; |
| 3450 | |
| 3451 | if (line->type == LINE_STAT_NONE || |
| 3452 | (!status && line[1].type == LINE_STAT_NONE)) { |
| 3453 | report("No file to diff"); |
| 3454 | return REQ_NONE; |
| 3455 | } |
| 3456 | |
| 3457 | if (status) { |
| 3458 | if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath)) |
| 3459 | return REQ_QUIT; |
| 3460 | /* Diffs for unmerged entries are empty when pasing the |
| 3461 | * new path, so leave it empty. */ |
| 3462 | if (status->status != 'U' && |
| 3463 | sq_quote(newpath, 0, status->new.name) >= sizeof(newpath)) |
| 3464 | return REQ_QUIT; |
| 3465 | } |
| 3466 | |
| 3467 | if (opt_cdup[0] && |
| 3468 | line->type != LINE_STAT_UNTRACKED && |
| 3469 | !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup)) |
| 3470 | return REQ_QUIT; |
| 3471 | |
| 3472 | switch (line->type) { |
| 3473 | case LINE_STAT_STAGED: |
| 3474 | if (!string_format_from(opt_cmd, &cmdsize, |
| 3475 | STATUS_DIFF_INDEX_SHOW_CMD, oldpath, newpath)) |
| 3476 | return REQ_QUIT; |
| 3477 | if (status) |
| 3478 | info = "Staged changes to %s"; |
| 3479 | else |
| 3480 | info = "Staged changes"; |
| 3481 | break; |
| 3482 | |
| 3483 | case LINE_STAT_UNSTAGED: |
| 3484 | if (!string_format_from(opt_cmd, &cmdsize, |
| 3485 | STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath)) |
| 3486 | return REQ_QUIT; |
| 3487 | if (status) |
| 3488 | info = "Unstaged changes to %s"; |
| 3489 | else |
| 3490 | info = "Unstaged changes"; |
| 3491 | break; |
| 3492 | |
| 3493 | case LINE_STAT_UNTRACKED: |
| 3494 | if (opt_pipe) |
| 3495 | return REQ_QUIT; |
| 3496 | |
| 3497 | |
| 3498 | if (!status) { |
| 3499 | report("No file to show"); |
| 3500 | return REQ_NONE; |
| 3501 | } |
| 3502 | |
| 3503 | opt_pipe = fopen(status->new.name, "r"); |
| 3504 | info = "Untracked file %s"; |
| 3505 | break; |
| 3506 | |
| 3507 | default: |
| 3508 | die("line type %d not handled in switch", line->type); |
| 3509 | } |
| 3510 | |
| 3511 | open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT); |
| 3512 | if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) { |
| 3513 | if (status) { |
| 3514 | stage_status = *status; |
| 3515 | } else { |
| 3516 | memset(&stage_status, 0, sizeof(stage_status)); |
| 3517 | } |
| 3518 | |
| 3519 | stage_line_type = line->type; |
| 3520 | string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name); |
| 3521 | } |
| 3522 | |
| 3523 | return REQ_NONE; |
| 3524 | } |
| 3525 | |
| 3526 | |
| 3527 | static bool |
| 3528 | status_update_file(struct view *view, struct status *status, enum line_type type) |
| 3529 | { |
| 3530 | char cmd[SIZEOF_STR]; |
| 3531 | char buf[SIZEOF_STR]; |
| 3532 | size_t cmdsize = 0; |
| 3533 | size_t bufsize = 0; |
| 3534 | size_t written = 0; |
| 3535 | FILE *pipe; |
| 3536 | |
| 3537 | if (opt_cdup[0] && |
| 3538 | type != LINE_STAT_UNTRACKED && |
| 3539 | !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup)) |
| 3540 | return FALSE; |
| 3541 | |
| 3542 | switch (type) { |
| 3543 | case LINE_STAT_STAGED: |
| 3544 | if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c", |
| 3545 | status->old.mode, |
| 3546 | status->old.rev, |
| 3547 | status->old.name, 0)) |
| 3548 | return FALSE; |
| 3549 | |
| 3550 | string_add(cmd, cmdsize, "git update-index -z --index-info"); |
| 3551 | break; |
| 3552 | |
| 3553 | case LINE_STAT_UNSTAGED: |
| 3554 | case LINE_STAT_UNTRACKED: |
| 3555 | if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0)) |
| 3556 | return FALSE; |
| 3557 | |
| 3558 | string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin"); |
| 3559 | break; |
| 3560 | |
| 3561 | default: |
| 3562 | die("line type %d not handled in switch", type); |
| 3563 | } |
| 3564 | |
| 3565 | pipe = popen(cmd, "w"); |
| 3566 | if (!pipe) |
| 3567 | return FALSE; |
| 3568 | |
| 3569 | while (!ferror(pipe) && written < bufsize) { |
| 3570 | written += fwrite(buf + written, 1, bufsize - written, pipe); |
| 3571 | } |
| 3572 | |
| 3573 | pclose(pipe); |
| 3574 | |
| 3575 | if (written != bufsize) |
| 3576 | return FALSE; |
| 3577 | |
| 3578 | return TRUE; |
| 3579 | } |
| 3580 | |
| 3581 | static void |
| 3582 | status_update(struct view *view) |
| 3583 | { |
| 3584 | struct line *line = &view->line[view->lineno]; |
| 3585 | |
| 3586 | assert(view->lines); |
| 3587 | |
| 3588 | if (!line->data) { |
| 3589 | while (++line < view->line + view->lines && line->data) { |
| 3590 | if (!status_update_file(view, line->data, line->type)) |
| 3591 | report("Failed to update file status"); |
| 3592 | } |
| 3593 | |
| 3594 | if (!line[-1].data) { |
| 3595 | report("Nothing to update"); |
| 3596 | return; |
| 3597 | } |
| 3598 | |
| 3599 | } else if (!status_update_file(view, line->data, line->type)) { |
| 3600 | report("Failed to update file status"); |
| 3601 | } |
| 3602 | } |
| 3603 | |
| 3604 | static enum request |
| 3605 | status_request(struct view *view, enum request request, struct line *line) |
| 3606 | { |
| 3607 | struct status *status = line->data; |
| 3608 | |
| 3609 | switch (request) { |
| 3610 | case REQ_STATUS_UPDATE: |
| 3611 | status_update(view); |
| 3612 | break; |
| 3613 | |
| 3614 | case REQ_STATUS_MERGE: |
| 3615 | if (!status || status->status != 'U') { |
| 3616 | report("Merging only possible for files with unmerged status ('U')."); |
| 3617 | return REQ_NONE; |
| 3618 | } |
| 3619 | open_mergetool(status->new.name); |
| 3620 | break; |
| 3621 | |
| 3622 | case REQ_EDIT: |
| 3623 | if (!status) |
| 3624 | return request; |
| 3625 | |
| 3626 | open_editor(status->status != '?', status->new.name); |
| 3627 | break; |
| 3628 | |
| 3629 | case REQ_ENTER: |
| 3630 | /* After returning the status view has been split to |
| 3631 | * show the stage view. No further reloading is |
| 3632 | * necessary. */ |
| 3633 | status_enter(view, line); |
| 3634 | return REQ_NONE; |
| 3635 | |
| 3636 | case REQ_REFRESH: |
| 3637 | /* Simply reload the view. */ |
| 3638 | break; |
| 3639 | |
| 3640 | default: |
| 3641 | return request; |
| 3642 | } |
| 3643 | |
| 3644 | open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD); |
| 3645 | |
| 3646 | return REQ_NONE; |
| 3647 | } |
| 3648 | |
| 3649 | static void |
| 3650 | status_select(struct view *view, struct line *line) |
| 3651 | { |
| 3652 | struct status *status = line->data; |
| 3653 | char file[SIZEOF_STR] = "all files"; |
| 3654 | char *text; |
| 3655 | char *key; |
| 3656 | |
| 3657 | if (status && !string_format(file, "'%s'", status->new.name)) |
| 3658 | return; |
| 3659 | |
| 3660 | if (!status && line[1].type == LINE_STAT_NONE) |
| 3661 | line++; |
| 3662 | |
| 3663 | switch (line->type) { |
| 3664 | case LINE_STAT_STAGED: |
| 3665 | text = "Press %s to unstage %s for commit"; |
| 3666 | break; |
| 3667 | |
| 3668 | case LINE_STAT_UNSTAGED: |
| 3669 | text = "Press %s to stage %s for commit"; |
| 3670 | break; |
| 3671 | |
| 3672 | case LINE_STAT_UNTRACKED: |
| 3673 | text = "Press %s to stage %s for addition"; |
| 3674 | break; |
| 3675 | |
| 3676 | case LINE_STAT_NONE: |
| 3677 | text = "Nothing to update"; |
| 3678 | break; |
| 3679 | |
| 3680 | default: |
| 3681 | die("line type %d not handled in switch", line->type); |
| 3682 | } |
| 3683 | |
| 3684 | if (status && status->status == 'U') { |
| 3685 | text = "Press %s to resolve conflict in %s"; |
| 3686 | key = get_key(REQ_STATUS_MERGE); |
| 3687 | |
| 3688 | } else { |
| 3689 | key = get_key(REQ_STATUS_UPDATE); |
| 3690 | } |
| 3691 | |
| 3692 | string_format(view->ref, text, key, file); |
| 3693 | } |
| 3694 | |
| 3695 | static bool |
| 3696 | status_grep(struct view *view, struct line *line) |
| 3697 | { |
| 3698 | struct status *status = line->data; |
| 3699 | enum { S_STATUS, S_NAME, S_END } state; |
| 3700 | char buf[2] = "?"; |
| 3701 | regmatch_t pmatch; |
| 3702 | |
| 3703 | if (!status) |
| 3704 | return FALSE; |
| 3705 | |
| 3706 | for (state = S_STATUS; state < S_END; state++) { |
| 3707 | char *text; |
| 3708 | |
| 3709 | switch (state) { |
| 3710 | case S_NAME: text = status->new.name; break; |
| 3711 | case S_STATUS: |
| 3712 | buf[0] = status->status; |
| 3713 | text = buf; |
| 3714 | break; |
| 3715 | |
| 3716 | default: |
| 3717 | return FALSE; |
| 3718 | } |
| 3719 | |
| 3720 | if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH) |
| 3721 | return TRUE; |
| 3722 | } |
| 3723 | |
| 3724 | return FALSE; |
| 3725 | } |
| 3726 | |
| 3727 | static struct view_ops status_ops = { |
| 3728 | "file", |
| 3729 | status_open, |
| 3730 | NULL, |
| 3731 | status_draw, |
| 3732 | status_request, |
| 3733 | status_grep, |
| 3734 | status_select, |
| 3735 | }; |
| 3736 | |
| 3737 | |
| 3738 | static bool |
| 3739 | stage_diff_line(FILE *pipe, struct line *line) |
| 3740 | { |
| 3741 | char *buf = line->data; |
| 3742 | size_t bufsize = strlen(buf); |
| 3743 | size_t written = 0; |
| 3744 | |
| 3745 | while (!ferror(pipe) && written < bufsize) { |
| 3746 | written += fwrite(buf + written, 1, bufsize - written, pipe); |
| 3747 | } |
| 3748 | |
| 3749 | fputc('\n', pipe); |
| 3750 | |
| 3751 | return written == bufsize; |
| 3752 | } |
| 3753 | |
| 3754 | static struct line * |
| 3755 | stage_diff_hdr(struct view *view, struct line *line) |
| 3756 | { |
| 3757 | int diff_hdr_dir = line->type == LINE_DIFF_CHUNK ? -1 : 1; |
| 3758 | struct line *diff_hdr; |
| 3759 | |
| 3760 | if (line->type == LINE_DIFF_CHUNK) |
| 3761 | diff_hdr = line - 1; |
| 3762 | else |
| 3763 | diff_hdr = view->line + 1; |
| 3764 | |
| 3765 | while (diff_hdr > view->line && diff_hdr < view->line + view->lines) { |
| 3766 | if (diff_hdr->type == LINE_DIFF_HEADER) |
| 3767 | return diff_hdr; |
| 3768 | |
| 3769 | diff_hdr += diff_hdr_dir; |
| 3770 | } |
| 3771 | |
| 3772 | return NULL; |
| 3773 | } |
| 3774 | |
| 3775 | static bool |
| 3776 | stage_update_chunk(struct view *view, struct line *line) |
| 3777 | { |
| 3778 | char cmd[SIZEOF_STR]; |
| 3779 | size_t cmdsize = 0; |
| 3780 | struct line *diff_hdr, *diff_chunk, *diff_end; |
| 3781 | FILE *pipe; |
| 3782 | |
| 3783 | diff_hdr = stage_diff_hdr(view, line); |
| 3784 | if (!diff_hdr) |
| 3785 | return FALSE; |
| 3786 | |
| 3787 | if (opt_cdup[0] && |
| 3788 | !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup)) |
| 3789 | return FALSE; |
| 3790 | |
| 3791 | if (!string_format_from(cmd, &cmdsize, |
| 3792 | "git apply --cached %s - && " |
| 3793 | "git update-index -q --unmerged --refresh 2>/dev/null", |
| 3794 | stage_line_type == LINE_STAT_STAGED ? "-R" : "")) |
| 3795 | return FALSE; |
| 3796 | |
| 3797 | pipe = popen(cmd, "w"); |
| 3798 | if (!pipe) |
| 3799 | return FALSE; |
| 3800 | |
| 3801 | diff_end = view->line + view->lines; |
| 3802 | if (line->type != LINE_DIFF_CHUNK) { |
| 3803 | diff_chunk = diff_hdr; |
| 3804 | |
| 3805 | } else { |
| 3806 | for (diff_chunk = line + 1; diff_chunk < diff_end; diff_chunk++) |
| 3807 | if (diff_chunk->type == LINE_DIFF_CHUNK || |
| 3808 | diff_chunk->type == LINE_DIFF_HEADER) |
| 3809 | diff_end = diff_chunk; |
| 3810 | |
| 3811 | diff_chunk = line; |
| 3812 | |
| 3813 | while (diff_hdr->type != LINE_DIFF_CHUNK) { |
| 3814 | switch (diff_hdr->type) { |
| 3815 | case LINE_DIFF_HEADER: |
| 3816 | case LINE_DIFF_INDEX: |
| 3817 | case LINE_DIFF_ADD: |
| 3818 | case LINE_DIFF_DEL: |
| 3819 | break; |
| 3820 | |
| 3821 | default: |
| 3822 | diff_hdr++; |
| 3823 | continue; |
| 3824 | } |
| 3825 | |
| 3826 | if (!stage_diff_line(pipe, diff_hdr++)) { |
| 3827 | pclose(pipe); |
| 3828 | return FALSE; |
| 3829 | } |
| 3830 | } |
| 3831 | } |
| 3832 | |
| 3833 | while (diff_chunk < diff_end && stage_diff_line(pipe, diff_chunk)) |
| 3834 | diff_chunk++; |
| 3835 | |
| 3836 | pclose(pipe); |
| 3837 | |
| 3838 | if (diff_chunk != diff_end) |
| 3839 | return FALSE; |
| 3840 | |
| 3841 | return TRUE; |
| 3842 | } |
| 3843 | |
| 3844 | static void |
| 3845 | stage_update(struct view *view, struct line *line) |
| 3846 | { |
| 3847 | if (stage_line_type != LINE_STAT_UNTRACKED && |
| 3848 | (line->type == LINE_DIFF_CHUNK || !stage_status.status)) { |
| 3849 | if (!stage_update_chunk(view, line)) { |
| 3850 | report("Failed to apply chunk"); |
| 3851 | return; |
| 3852 | } |
| 3853 | |
| 3854 | } else if (!status_update_file(view, &stage_status, stage_line_type)) { |
| 3855 | report("Failed to update file"); |
| 3856 | return; |
| 3857 | } |
| 3858 | |
| 3859 | open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD); |
| 3860 | |
| 3861 | view = VIEW(REQ_VIEW_STATUS); |
| 3862 | if (view_is_displayed(view)) |
| 3863 | status_enter(view, &view->line[view->lineno]); |
| 3864 | } |
| 3865 | |
| 3866 | static enum request |
| 3867 | stage_request(struct view *view, enum request request, struct line *line) |
| 3868 | { |
| 3869 | switch (request) { |
| 3870 | case REQ_STATUS_UPDATE: |
| 3871 | stage_update(view, line); |
| 3872 | break; |
| 3873 | |
| 3874 | case REQ_EDIT: |
| 3875 | if (!stage_status.new.name[0]) |
| 3876 | return request; |
| 3877 | |
| 3878 | open_editor(stage_status.status != '?', stage_status.new.name); |
| 3879 | break; |
| 3880 | |
| 3881 | case REQ_ENTER: |
| 3882 | pager_request(view, request, line); |
| 3883 | break; |
| 3884 | |
| 3885 | default: |
| 3886 | return request; |
| 3887 | } |
| 3888 | |
| 3889 | return REQ_NONE; |
| 3890 | } |
| 3891 | |
| 3892 | static struct view_ops stage_ops = { |
| 3893 | "line", |
| 3894 | NULL, |
| 3895 | pager_read, |
| 3896 | pager_draw, |
| 3897 | stage_request, |
| 3898 | pager_grep, |
| 3899 | pager_select, |
| 3900 | }; |
| 3901 | |
| 3902 | |
| 3903 | /* |
| 3904 | * Revision graph |
| 3905 | */ |
| 3906 | |
| 3907 | struct commit { |
| 3908 | char id[SIZEOF_REV]; /* SHA1 ID. */ |
| 3909 | char title[128]; /* First line of the commit message. */ |
| 3910 | char author[75]; /* Author of the commit. */ |
| 3911 | struct tm time; /* Date from the author ident. */ |
| 3912 | struct ref **refs; /* Repository references. */ |
| 3913 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ |
| 3914 | size_t graph_size; /* The width of the graph array. */ |
| 3915 | }; |
| 3916 | |
| 3917 | /* Size of rev graph with no "padding" columns */ |
| 3918 | #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2)) |
| 3919 | |
| 3920 | struct rev_graph { |
| 3921 | struct rev_graph *prev, *next, *parents; |
| 3922 | char rev[SIZEOF_REVITEMS][SIZEOF_REV]; |
| 3923 | size_t size; |
| 3924 | struct commit *commit; |
| 3925 | size_t pos; |
| 3926 | unsigned int boundary:1; |
| 3927 | }; |
| 3928 | |
| 3929 | /* Parents of the commit being visualized. */ |
| 3930 | static struct rev_graph graph_parents[4]; |
| 3931 | |
| 3932 | /* The current stack of revisions on the graph. */ |
| 3933 | static struct rev_graph graph_stacks[4] = { |
| 3934 | { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] }, |
| 3935 | { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] }, |
| 3936 | { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] }, |
| 3937 | { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] }, |
| 3938 | }; |
| 3939 | |
| 3940 | static inline bool |
| 3941 | graph_parent_is_merge(struct rev_graph *graph) |
| 3942 | { |
| 3943 | return graph->parents->size > 1; |
| 3944 | } |
| 3945 | |
| 3946 | static inline void |
| 3947 | append_to_rev_graph(struct rev_graph *graph, chtype symbol) |
| 3948 | { |
| 3949 | struct commit *commit = graph->commit; |
| 3950 | |
| 3951 | if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1) |
| 3952 | commit->graph[commit->graph_size++] = symbol; |
| 3953 | } |
| 3954 | |
| 3955 | static void |
| 3956 | done_rev_graph(struct rev_graph *graph) |
| 3957 | { |
| 3958 | if (graph_parent_is_merge(graph) && |
| 3959 | graph->pos < graph->size - 1 && |
| 3960 | graph->next->size == graph->size + graph->parents->size - 1) { |
| 3961 | size_t i = graph->pos + graph->parents->size - 1; |
| 3962 | |
| 3963 | graph->commit->graph_size = i * 2; |
| 3964 | while (i < graph->next->size - 1) { |
| 3965 | append_to_rev_graph(graph, ' '); |
| 3966 | append_to_rev_graph(graph, '\\'); |
| 3967 | i++; |
| 3968 | } |
| 3969 | } |
| 3970 | |
| 3971 | graph->size = graph->pos = 0; |
| 3972 | graph->commit = NULL; |
| 3973 | memset(graph->parents, 0, sizeof(*graph->parents)); |
| 3974 | } |
| 3975 | |
| 3976 | static void |
| 3977 | push_rev_graph(struct rev_graph *graph, char *parent) |
| 3978 | { |
| 3979 | int i; |
| 3980 | |
| 3981 | /* "Collapse" duplicate parents lines. |
| 3982 | * |
| 3983 | * FIXME: This needs to also update update the drawn graph but |
| 3984 | * for now it just serves as a method for pruning graph lines. */ |
| 3985 | for (i = 0; i < graph->size; i++) |
| 3986 | if (!strncmp(graph->rev[i], parent, SIZEOF_REV)) |
| 3987 | return; |
| 3988 | |
| 3989 | if (graph->size < SIZEOF_REVITEMS) { |
| 3990 | string_copy_rev(graph->rev[graph->size++], parent); |
| 3991 | } |
| 3992 | } |
| 3993 | |
| 3994 | static chtype |
| 3995 | get_rev_graph_symbol(struct rev_graph *graph) |
| 3996 | { |
| 3997 | chtype symbol; |
| 3998 | |
| 3999 | if (graph->boundary) |
| 4000 | symbol = REVGRAPH_BOUND; |
| 4001 | else if (graph->parents->size == 0) |
| 4002 | symbol = REVGRAPH_INIT; |
| 4003 | else if (graph_parent_is_merge(graph)) |
| 4004 | symbol = REVGRAPH_MERGE; |
| 4005 | else if (graph->pos >= graph->size) |
| 4006 | symbol = REVGRAPH_BRANCH; |
| 4007 | else |
| 4008 | symbol = REVGRAPH_COMMIT; |
| 4009 | |
| 4010 | return symbol; |
| 4011 | } |
| 4012 | |
| 4013 | static void |
| 4014 | draw_rev_graph(struct rev_graph *graph) |
| 4015 | { |
| 4016 | struct rev_filler { |
| 4017 | chtype separator, line; |
| 4018 | }; |
| 4019 | enum { DEFAULT, RSHARP, RDIAG, LDIAG }; |
| 4020 | static struct rev_filler fillers[] = { |
| 4021 | { ' ', REVGRAPH_LINE }, |
| 4022 | { '`', '.' }, |
| 4023 | { '\'', ' ' }, |
| 4024 | { '/', ' ' }, |
| 4025 | }; |
| 4026 | chtype symbol = get_rev_graph_symbol(graph); |
| 4027 | struct rev_filler *filler; |
| 4028 | size_t i; |
| 4029 | |
| 4030 | filler = &fillers[DEFAULT]; |
| 4031 | |
| 4032 | for (i = 0; i < graph->pos; i++) { |
| 4033 | append_to_rev_graph(graph, filler->line); |
| 4034 | if (graph_parent_is_merge(graph->prev) && |
| 4035 | graph->prev->pos == i) |
| 4036 | filler = &fillers[RSHARP]; |
| 4037 | |
| 4038 | append_to_rev_graph(graph, filler->separator); |
| 4039 | } |
| 4040 | |
| 4041 | /* Place the symbol for this revision. */ |
| 4042 | append_to_rev_graph(graph, symbol); |
| 4043 | |
| 4044 | if (graph->prev->size > graph->size) |
| 4045 | filler = &fillers[RDIAG]; |
| 4046 | else |
| 4047 | filler = &fillers[DEFAULT]; |
| 4048 | |
| 4049 | i++; |
| 4050 | |
| 4051 | for (; i < graph->size; i++) { |
| 4052 | append_to_rev_graph(graph, filler->separator); |
| 4053 | append_to_rev_graph(graph, filler->line); |
| 4054 | if (graph_parent_is_merge(graph->prev) && |
| 4055 | i < graph->prev->pos + graph->parents->size) |
| 4056 | filler = &fillers[RSHARP]; |
| 4057 | if (graph->prev->size > graph->size) |
| 4058 | filler = &fillers[LDIAG]; |
| 4059 | } |
| 4060 | |
| 4061 | if (graph->prev->size > graph->size) { |
| 4062 | append_to_rev_graph(graph, filler->separator); |
| 4063 | if (filler->line != ' ') |
| 4064 | append_to_rev_graph(graph, filler->line); |
| 4065 | } |
| 4066 | } |
| 4067 | |
| 4068 | /* Prepare the next rev graph */ |
| 4069 | static void |
| 4070 | prepare_rev_graph(struct rev_graph *graph) |
| 4071 | { |
| 4072 | size_t i; |
| 4073 | |
| 4074 | /* First, traverse all lines of revisions up to the active one. */ |
| 4075 | for (graph->pos = 0; graph->pos < graph->size; graph->pos++) { |
| 4076 | if (!strcmp(graph->rev[graph->pos], graph->commit->id)) |
| 4077 | break; |
| 4078 | |
| 4079 | push_rev_graph(graph->next, graph->rev[graph->pos]); |
| 4080 | } |
| 4081 | |
| 4082 | /* Interleave the new revision parent(s). */ |
| 4083 | for (i = 0; !graph->boundary && i < graph->parents->size; i++) |
| 4084 | push_rev_graph(graph->next, graph->parents->rev[i]); |
| 4085 | |
| 4086 | /* Lastly, put any remaining revisions. */ |
| 4087 | for (i = graph->pos + 1; i < graph->size; i++) |
| 4088 | push_rev_graph(graph->next, graph->rev[i]); |
| 4089 | } |
| 4090 | |
| 4091 | static void |
| 4092 | update_rev_graph(struct rev_graph *graph) |
| 4093 | { |
| 4094 | /* If this is the finalizing update ... */ |
| 4095 | if (graph->commit) |
| 4096 | prepare_rev_graph(graph); |
| 4097 | |
| 4098 | /* Graph visualization needs a one rev look-ahead, |
| 4099 | * so the first update doesn't visualize anything. */ |
| 4100 | if (!graph->prev->commit) |
| 4101 | return; |
| 4102 | |
| 4103 | draw_rev_graph(graph->prev); |
| 4104 | done_rev_graph(graph->prev->prev); |
| 4105 | } |
| 4106 | |
| 4107 | |
| 4108 | /* |
| 4109 | * Main view backend |
| 4110 | */ |
| 4111 | |
| 4112 | static bool |
| 4113 | main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
| 4114 | { |
| 4115 | char buf[DATE_COLS + 1]; |
| 4116 | struct commit *commit = line->data; |
| 4117 | enum line_type type; |
| 4118 | int col = 0; |
| 4119 | size_t timelen; |
| 4120 | size_t authorlen; |
| 4121 | int trimmed = 1; |
| 4122 | |
| 4123 | if (!*commit->author) |
| 4124 | return FALSE; |
| 4125 | |
| 4126 | wmove(view->win, lineno, col); |
| 4127 | |
| 4128 | if (selected) { |
| 4129 | type = LINE_CURSOR; |
| 4130 | wattrset(view->win, get_line_attr(type)); |
| 4131 | wchgat(view->win, -1, 0, type, NULL); |
| 4132 | |
| 4133 | } else { |
| 4134 | type = LINE_MAIN_COMMIT; |
| 4135 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
| 4136 | } |
| 4137 | |
| 4138 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
| 4139 | waddnstr(view->win, buf, timelen); |
| 4140 | waddstr(view->win, " "); |
| 4141 | |
| 4142 | col += DATE_COLS; |
| 4143 | wmove(view->win, lineno, col); |
| 4144 | if (type != LINE_CURSOR) |
| 4145 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); |
| 4146 | |
| 4147 | if (opt_utf8) { |
| 4148 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); |
| 4149 | } else { |
| 4150 | authorlen = strlen(commit->author); |
| 4151 | if (authorlen > AUTHOR_COLS - 2) { |
| 4152 | authorlen = AUTHOR_COLS - 2; |
| 4153 | trimmed = 1; |
| 4154 | } |
| 4155 | } |
| 4156 | |
| 4157 | if (trimmed) { |
| 4158 | waddnstr(view->win, commit->author, authorlen); |
| 4159 | if (type != LINE_CURSOR) |
| 4160 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); |
| 4161 | waddch(view->win, '~'); |
| 4162 | } else { |
| 4163 | waddstr(view->win, commit->author); |
| 4164 | } |
| 4165 | |
| 4166 | col += AUTHOR_COLS; |
| 4167 | |
| 4168 | if (opt_rev_graph && commit->graph_size) { |
| 4169 | size_t i; |
| 4170 | |
| 4171 | if (type != LINE_CURSOR) |
| 4172 | wattrset(view->win, get_line_attr(LINE_MAIN_REVGRAPH)); |
| 4173 | wmove(view->win, lineno, col); |
| 4174 | /* Using waddch() instead of waddnstr() ensures that |
| 4175 | * they'll be rendered correctly for the cursor line. */ |
| 4176 | for (i = 0; i < commit->graph_size; i++) |
| 4177 | waddch(view->win, commit->graph[i]); |
| 4178 | |
| 4179 | waddch(view->win, ' '); |
| 4180 | col += commit->graph_size + 1; |
| 4181 | } |
| 4182 | if (type != LINE_CURSOR) |
| 4183 | wattrset(view->win, A_NORMAL); |
| 4184 | |
| 4185 | wmove(view->win, lineno, col); |
| 4186 | |
| 4187 | if (commit->refs) { |
| 4188 | size_t i = 0; |
| 4189 | |
| 4190 | do { |
| 4191 | if (type == LINE_CURSOR) |
| 4192 | ; |
| 4193 | else if (commit->refs[i]->tag) |
| 4194 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
| 4195 | else if (commit->refs[i]->remote) |
| 4196 | wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE)); |
| 4197 | else |
| 4198 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); |
| 4199 | waddstr(view->win, "["); |
| 4200 | waddstr(view->win, commit->refs[i]->name); |
| 4201 | waddstr(view->win, "]"); |
| 4202 | if (type != LINE_CURSOR) |
| 4203 | wattrset(view->win, A_NORMAL); |
| 4204 | waddstr(view->win, " "); |
| 4205 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
| 4206 | } while (commit->refs[i++]->next); |
| 4207 | } |
| 4208 | |
| 4209 | if (type != LINE_CURSOR) |
| 4210 | wattrset(view->win, get_line_attr(type)); |
| 4211 | |
| 4212 | { |
| 4213 | int titlelen = strlen(commit->title); |
| 4214 | |
| 4215 | if (col + titlelen > view->width) |
| 4216 | titlelen = view->width - col; |
| 4217 | |
| 4218 | waddnstr(view->win, commit->title, titlelen); |
| 4219 | } |
| 4220 | |
| 4221 | return TRUE; |
| 4222 | } |
| 4223 | |
| 4224 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
| 4225 | static bool |
| 4226 | main_read(struct view *view, char *line) |
| 4227 | { |
| 4228 | static struct rev_graph *graph = graph_stacks; |
| 4229 | enum line_type type; |
| 4230 | struct commit *commit; |
| 4231 | |
| 4232 | if (!line) { |
| 4233 | update_rev_graph(graph); |
| 4234 | return TRUE; |
| 4235 | } |
| 4236 | |
| 4237 | type = get_line_type(line); |
| 4238 | if (type == LINE_COMMIT) { |
| 4239 | commit = calloc(1, sizeof(struct commit)); |
| 4240 | if (!commit) |
| 4241 | return FALSE; |
| 4242 | |
| 4243 | line += STRING_SIZE("commit "); |
| 4244 | if (*line == '-') { |
| 4245 | graph->boundary = 1; |
| 4246 | line++; |
| 4247 | } |
| 4248 | |
| 4249 | string_copy_rev(commit->id, line); |
| 4250 | commit->refs = get_refs(commit->id); |
| 4251 | graph->commit = commit; |
| 4252 | add_line_data(view, commit, LINE_MAIN_COMMIT); |
| 4253 | return TRUE; |
| 4254 | } |
| 4255 | |
| 4256 | if (!view->lines) |
| 4257 | return TRUE; |
| 4258 | commit = view->line[view->lines - 1].data; |
| 4259 | |
| 4260 | switch (type) { |
| 4261 | case LINE_PARENT: |
| 4262 | push_rev_graph(graph->parents, line + STRING_SIZE("parent ")); |
| 4263 | break; |
| 4264 | |
| 4265 | case LINE_AUTHOR: |
| 4266 | { |
| 4267 | /* Parse author lines where the name may be empty: |
| 4268 | * author <email@address.tld> 1138474660 +0100 |
| 4269 | */ |
| 4270 | char *ident = line + STRING_SIZE("author "); |
| 4271 | char *nameend = strchr(ident, '<'); |
| 4272 | char *emailend = strchr(ident, '>'); |
| 4273 | |
| 4274 | if (!nameend || !emailend) |
| 4275 | break; |
| 4276 | |
| 4277 | update_rev_graph(graph); |
| 4278 | graph = graph->next; |
| 4279 | |
| 4280 | *nameend = *emailend = 0; |
| 4281 | ident = chomp_string(ident); |
| 4282 | if (!*ident) { |
| 4283 | ident = chomp_string(nameend + 1); |
| 4284 | if (!*ident) |
| 4285 | ident = "Unknown"; |
| 4286 | } |
| 4287 | |
| 4288 | string_ncopy(commit->author, ident, strlen(ident)); |
| 4289 | |
| 4290 | /* Parse epoch and timezone */ |
| 4291 | if (emailend[1] == ' ') { |
| 4292 | char *secs = emailend + 2; |
| 4293 | char *zone = strchr(secs, ' '); |
| 4294 | time_t time = (time_t) atol(secs); |
| 4295 | |
| 4296 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
| 4297 | long tz; |
| 4298 | |
| 4299 | zone++; |
| 4300 | tz = ('0' - zone[1]) * 60 * 60 * 10; |
| 4301 | tz += ('0' - zone[2]) * 60 * 60; |
| 4302 | tz += ('0' - zone[3]) * 60; |
| 4303 | tz += ('0' - zone[4]) * 60; |
| 4304 | |
| 4305 | if (zone[0] == '-') |
| 4306 | tz = -tz; |
| 4307 | |
| 4308 | time -= tz; |
| 4309 | } |
| 4310 | |
| 4311 | gmtime_r(&time, &commit->time); |
| 4312 | } |
| 4313 | break; |
| 4314 | } |
| 4315 | default: |
| 4316 | /* Fill in the commit title if it has not already been set. */ |
| 4317 | if (commit->title[0]) |
| 4318 | break; |
| 4319 | |
| 4320 | /* Require titles to start with a non-space character at the |
| 4321 | * offset used by git log. */ |
| 4322 | if (strncmp(line, " ", 4)) |
| 4323 | break; |
| 4324 | line += 4; |
| 4325 | /* Well, if the title starts with a whitespace character, |
| 4326 | * try to be forgiving. Otherwise we end up with no title. */ |
| 4327 | while (isspace(*line)) |
| 4328 | line++; |
| 4329 | if (*line == '\0') |
| 4330 | break; |
| 4331 | /* FIXME: More graceful handling of titles; append "..." to |
| 4332 | * shortened titles, etc. */ |
| 4333 | |
| 4334 | string_ncopy(commit->title, line, strlen(line)); |
| 4335 | } |
| 4336 | |
| 4337 | return TRUE; |
| 4338 | } |
| 4339 | |
| 4340 | static enum request |
| 4341 | main_request(struct view *view, enum request request, struct line *line) |
| 4342 | { |
| 4343 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
| 4344 | |
| 4345 | if (request == REQ_ENTER) |
| 4346 | open_view(view, REQ_VIEW_DIFF, flags); |
| 4347 | else |
| 4348 | return request; |
| 4349 | |
| 4350 | return REQ_NONE; |
| 4351 | } |
| 4352 | |
| 4353 | static bool |
| 4354 | main_grep(struct view *view, struct line *line) |
| 4355 | { |
| 4356 | struct commit *commit = line->data; |
| 4357 | enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state; |
| 4358 | char buf[DATE_COLS + 1]; |
| 4359 | regmatch_t pmatch; |
| 4360 | |
| 4361 | for (state = S_TITLE; state < S_END; state++) { |
| 4362 | char *text; |
| 4363 | |
| 4364 | switch (state) { |
| 4365 | case S_TITLE: text = commit->title; break; |
| 4366 | case S_AUTHOR: text = commit->author; break; |
| 4367 | case S_DATE: |
| 4368 | if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time)) |
| 4369 | continue; |
| 4370 | text = buf; |
| 4371 | break; |
| 4372 | |
| 4373 | default: |
| 4374 | return FALSE; |
| 4375 | } |
| 4376 | |
| 4377 | if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH) |
| 4378 | return TRUE; |
| 4379 | } |
| 4380 | |
| 4381 | return FALSE; |
| 4382 | } |
| 4383 | |
| 4384 | static void |
| 4385 | main_select(struct view *view, struct line *line) |
| 4386 | { |
| 4387 | struct commit *commit = line->data; |
| 4388 | |
| 4389 | string_copy_rev(view->ref, commit->id); |
| 4390 | string_copy_rev(ref_commit, view->ref); |
| 4391 | } |
| 4392 | |
| 4393 | static struct view_ops main_ops = { |
| 4394 | "commit", |
| 4395 | NULL, |
| 4396 | main_read, |
| 4397 | main_draw, |
| 4398 | main_request, |
| 4399 | main_grep, |
| 4400 | main_select, |
| 4401 | }; |
| 4402 | |
| 4403 | |
| 4404 | /* |
| 4405 | * Unicode / UTF-8 handling |
| 4406 | * |
| 4407 | * NOTE: Much of the following code for dealing with unicode is derived from |
| 4408 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is |
| 4409 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. |
| 4410 | */ |
| 4411 | |
| 4412 | /* I've (over)annotated a lot of code snippets because I am not entirely |
| 4413 | * confident that the approach taken by this small UTF-8 interface is correct. |
| 4414 | * --jonas */ |
| 4415 | |
| 4416 | static inline int |
| 4417 | unicode_width(unsigned long c) |
| 4418 | { |
| 4419 | if (c >= 0x1100 && |
| 4420 | (c <= 0x115f /* Hangul Jamo */ |
| 4421 | || c == 0x2329 |
| 4422 | || c == 0x232a |
| 4423 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) |
| 4424 | /* CJK ... Yi */ |
| 4425 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
| 4426 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ |
| 4427 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ |
| 4428 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ |
| 4429 | || (c >= 0xffe0 && c <= 0xffe6) |
| 4430 | || (c >= 0x20000 && c <= 0x2fffd) |
| 4431 | || (c >= 0x30000 && c <= 0x3fffd))) |
| 4432 | return 2; |
| 4433 | |
| 4434 | return 1; |
| 4435 | } |
| 4436 | |
| 4437 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. |
| 4438 | * Illegal bytes are set one. */ |
| 4439 | static const unsigned char utf8_bytes[256] = { |
| 4440 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, |
| 4441 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, |
| 4442 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, |
| 4443 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, |
| 4444 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, |
| 4445 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, |
| 4446 | 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, |
| 4447 | 3,3,3,3,3,3,3,3, 3,3,3,3,3,3,3,3, 4,4,4,4,4,4,4,4, 5,5,5,5,6,6,1,1, |
| 4448 | }; |
| 4449 | |
| 4450 | /* Decode UTF-8 multi-byte representation into a unicode character. */ |
| 4451 | static inline unsigned long |
| 4452 | utf8_to_unicode(const char *string, size_t length) |
| 4453 | { |
| 4454 | unsigned long unicode; |
| 4455 | |
| 4456 | switch (length) { |
| 4457 | case 1: |
| 4458 | unicode = string[0]; |
| 4459 | break; |
| 4460 | case 2: |
| 4461 | unicode = (string[0] & 0x1f) << 6; |
| 4462 | unicode += (string[1] & 0x3f); |
| 4463 | break; |
| 4464 | case 3: |
| 4465 | unicode = (string[0] & 0x0f) << 12; |
| 4466 | unicode += ((string[1] & 0x3f) << 6); |
| 4467 | unicode += (string[2] & 0x3f); |
| 4468 | break; |
| 4469 | case 4: |
| 4470 | unicode = (string[0] & 0x0f) << 18; |
| 4471 | unicode += ((string[1] & 0x3f) << 12); |
| 4472 | unicode += ((string[2] & 0x3f) << 6); |
| 4473 | unicode += (string[3] & 0x3f); |
| 4474 | break; |
| 4475 | case 5: |
| 4476 | unicode = (string[0] & 0x0f) << 24; |
| 4477 | unicode += ((string[1] & 0x3f) << 18); |
| 4478 | unicode += ((string[2] & 0x3f) << 12); |
| 4479 | unicode += ((string[3] & 0x3f) << 6); |
| 4480 | unicode += (string[4] & 0x3f); |
| 4481 | break; |
| 4482 | case 6: |
| 4483 | unicode = (string[0] & 0x01) << 30; |
| 4484 | unicode += ((string[1] & 0x3f) << 24); |
| 4485 | unicode += ((string[2] & 0x3f) << 18); |
| 4486 | unicode += ((string[3] & 0x3f) << 12); |
| 4487 | unicode += ((string[4] & 0x3f) << 6); |
| 4488 | unicode += (string[5] & 0x3f); |
| 4489 | break; |
| 4490 | default: |
| 4491 | die("Invalid unicode length"); |
| 4492 | } |
| 4493 | |
| 4494 | /* Invalid characters could return the special 0xfffd value but NUL |
| 4495 | * should be just as good. */ |
| 4496 | return unicode > 0xffff ? 0 : unicode; |
| 4497 | } |
| 4498 | |
| 4499 | /* Calculates how much of string can be shown within the given maximum width |
| 4500 | * and sets trimmed parameter to non-zero value if all of string could not be |
| 4501 | * shown. |
| 4502 | * |
| 4503 | * Additionally, adds to coloffset how many many columns to move to align with |
| 4504 | * the expected position. Takes into account how multi-byte and double-width |
| 4505 | * characters will effect the cursor position. |
| 4506 | * |
| 4507 | * Returns the number of bytes to output from string to satisfy max_width. */ |
| 4508 | static size_t |
| 4509 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) |
| 4510 | { |
| 4511 | const char *start = string; |
| 4512 | const char *end = strchr(string, '\0'); |
| 4513 | size_t mbwidth = 0; |
| 4514 | size_t width = 0; |
| 4515 | |
| 4516 | *trimmed = 0; |
| 4517 | |
| 4518 | while (string < end) { |
| 4519 | int c = *(unsigned char *) string; |
| 4520 | unsigned char bytes = utf8_bytes[c]; |
| 4521 | size_t ucwidth; |
| 4522 | unsigned long unicode; |
| 4523 | |
| 4524 | if (string + bytes > end) |
| 4525 | break; |
| 4526 | |
| 4527 | /* Change representation to figure out whether |
| 4528 | * it is a single- or double-width character. */ |
| 4529 | |
| 4530 | unicode = utf8_to_unicode(string, bytes); |
| 4531 | /* FIXME: Graceful handling of invalid unicode character. */ |
| 4532 | if (!unicode) |
| 4533 | break; |
| 4534 | |
| 4535 | ucwidth = unicode_width(unicode); |
| 4536 | width += ucwidth; |
| 4537 | if (width > max_width) { |
| 4538 | *trimmed = 1; |
| 4539 | break; |
| 4540 | } |
| 4541 | |
| 4542 | /* The column offset collects the differences between the |
| 4543 | * number of bytes encoding a character and the number of |
| 4544 | * columns will be used for rendering said character. |
| 4545 | * |
| 4546 | * So if some character A is encoded in 2 bytes, but will be |
| 4547 | * represented on the screen using only 1 byte this will and up |
| 4548 | * adding 1 to the multi-byte column offset. |
| 4549 | * |
| 4550 | * Assumes that no double-width character can be encoding in |
| 4551 | * less than two bytes. */ |
| 4552 | if (bytes > ucwidth) |
| 4553 | mbwidth += bytes - ucwidth; |
| 4554 | |
| 4555 | string += bytes; |
| 4556 | } |
| 4557 | |
| 4558 | *coloffset += mbwidth; |
| 4559 | |
| 4560 | return string - start; |
| 4561 | } |
| 4562 | |
| 4563 | |
| 4564 | /* |
| 4565 | * Status management |
| 4566 | */ |
| 4567 | |
| 4568 | /* Whether or not the curses interface has been initialized. */ |
| 4569 | static bool cursed = FALSE; |
| 4570 | |
| 4571 | /* The status window is used for polling keystrokes. */ |
| 4572 | static WINDOW *status_win; |
| 4573 | |
| 4574 | static bool status_empty = TRUE; |
| 4575 | |
| 4576 | /* Update status and title window. */ |
| 4577 | static void |
| 4578 | report(const char *msg, ...) |
| 4579 | { |
| 4580 | struct view *view = display[current_view]; |
| 4581 | |
| 4582 | if (input_mode) |
| 4583 | return; |
| 4584 | |
| 4585 | if (!view) { |
| 4586 | char buf[SIZEOF_STR]; |
| 4587 | va_list args; |
| 4588 | |
| 4589 | va_start(args, msg); |
| 4590 | if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) { |
| 4591 | buf[sizeof(buf) - 1] = 0; |
| 4592 | buf[sizeof(buf) - 2] = '.'; |
| 4593 | buf[sizeof(buf) - 3] = '.'; |
| 4594 | buf[sizeof(buf) - 4] = '.'; |
| 4595 | } |
| 4596 | va_end(args); |
| 4597 | die("%s", buf); |
| 4598 | } |
| 4599 | |
| 4600 | if (!status_empty || *msg) { |
| 4601 | va_list args; |
| 4602 | |
| 4603 | va_start(args, msg); |
| 4604 | |
| 4605 | wmove(status_win, 0, 0); |
| 4606 | if (*msg) { |
| 4607 | vwprintw(status_win, msg, args); |
| 4608 | status_empty = FALSE; |
| 4609 | } else { |
| 4610 | status_empty = TRUE; |
| 4611 | } |
| 4612 | wclrtoeol(status_win); |
| 4613 | wrefresh(status_win); |
| 4614 | |
| 4615 | va_end(args); |
| 4616 | } |
| 4617 | |
| 4618 | update_view_title(view); |
| 4619 | update_display_cursor(view); |
| 4620 | } |
| 4621 | |
| 4622 | /* Controls when nodelay should be in effect when polling user input. */ |
| 4623 | static void |
| 4624 | set_nonblocking_input(bool loading) |
| 4625 | { |
| 4626 | static unsigned int loading_views; |
| 4627 | |
| 4628 | if ((loading == FALSE && loading_views-- == 1) || |
| 4629 | (loading == TRUE && loading_views++ == 0)) |
| 4630 | nodelay(status_win, loading); |
| 4631 | } |
| 4632 | |
| 4633 | static void |
| 4634 | init_display(void) |
| 4635 | { |
| 4636 | int x, y; |
| 4637 | |
| 4638 | /* Initialize the curses library */ |
| 4639 | if (isatty(STDIN_FILENO)) { |
| 4640 | cursed = !!initscr(); |
| 4641 | } else { |
| 4642 | /* Leave stdin and stdout alone when acting as a pager. */ |
| 4643 | FILE *io = fopen("/dev/tty", "r+"); |
| 4644 | |
| 4645 | if (!io) |
| 4646 | die("Failed to open /dev/tty"); |
| 4647 | cursed = !!newterm(NULL, io, io); |
| 4648 | } |
| 4649 | |
| 4650 | if (!cursed) |
| 4651 | die("Failed to initialize curses"); |
| 4652 | |
| 4653 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
| 4654 | cbreak(); /* Take input chars one at a time, no wait for \n */ |
| 4655 | noecho(); /* Don't echo input */ |
| 4656 | leaveok(stdscr, TRUE); |
| 4657 | |
| 4658 | if (has_colors()) |
| 4659 | init_colors(); |
| 4660 | |
| 4661 | getmaxyx(stdscr, y, x); |
| 4662 | status_win = newwin(1, 0, y - 1, 0); |
| 4663 | if (!status_win) |
| 4664 | die("Failed to create status window"); |
| 4665 | |
| 4666 | /* Enable keyboard mapping */ |
| 4667 | keypad(status_win, TRUE); |
| 4668 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
| 4669 | } |
| 4670 | |
| 4671 | static char * |
| 4672 | read_prompt(const char *prompt) |
| 4673 | { |
| 4674 | enum { READING, STOP, CANCEL } status = READING; |
| 4675 | static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")]; |
| 4676 | int pos = 0; |
| 4677 | |
| 4678 | while (status == READING) { |
| 4679 | struct view *view; |
| 4680 | int i, key; |
| 4681 | |
| 4682 | input_mode = TRUE; |
| 4683 | |
| 4684 | foreach_view (view, i) |
| 4685 | update_view(view); |
| 4686 | |
| 4687 | input_mode = FALSE; |
| 4688 | |
| 4689 | mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf); |
| 4690 | wclrtoeol(status_win); |
| 4691 | |
| 4692 | /* Refresh, accept single keystroke of input */ |
| 4693 | key = wgetch(status_win); |
| 4694 | switch (key) { |
| 4695 | case KEY_RETURN: |
| 4696 | case KEY_ENTER: |
| 4697 | case '\n': |
| 4698 | status = pos ? STOP : CANCEL; |
| 4699 | break; |
| 4700 | |
| 4701 | case KEY_BACKSPACE: |
| 4702 | if (pos > 0) |
| 4703 | pos--; |
| 4704 | else |
| 4705 | status = CANCEL; |
| 4706 | break; |
| 4707 | |
| 4708 | case KEY_ESC: |
| 4709 | status = CANCEL; |
| 4710 | break; |
| 4711 | |
| 4712 | case ERR: |
| 4713 | break; |
| 4714 | |
| 4715 | default: |
| 4716 | if (pos >= sizeof(buf)) { |
| 4717 | report("Input string too long"); |
| 4718 | return NULL; |
| 4719 | } |
| 4720 | |
| 4721 | if (isprint(key)) |
| 4722 | buf[pos++] = (char) key; |
| 4723 | } |
| 4724 | } |
| 4725 | |
| 4726 | /* Clear the status window */ |
| 4727 | status_empty = FALSE; |
| 4728 | report(""); |
| 4729 | |
| 4730 | if (status == CANCEL) |
| 4731 | return NULL; |
| 4732 | |
| 4733 | buf[pos++] = 0; |
| 4734 | |
| 4735 | return buf; |
| 4736 | } |
| 4737 | |
| 4738 | /* |
| 4739 | * Repository references |
| 4740 | */ |
| 4741 | |
| 4742 | static struct ref *refs; |
| 4743 | static size_t refs_size; |
| 4744 | |
| 4745 | /* Id <-> ref store */ |
| 4746 | static struct ref ***id_refs; |
| 4747 | static size_t id_refs_size; |
| 4748 | |
| 4749 | static struct ref ** |
| 4750 | get_refs(char *id) |
| 4751 | { |
| 4752 | struct ref ***tmp_id_refs; |
| 4753 | struct ref **ref_list = NULL; |
| 4754 | size_t ref_list_size = 0; |
| 4755 | size_t i; |
| 4756 | |
| 4757 | for (i = 0; i < id_refs_size; i++) |
| 4758 | if (!strcmp(id, id_refs[i][0]->id)) |
| 4759 | return id_refs[i]; |
| 4760 | |
| 4761 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); |
| 4762 | if (!tmp_id_refs) |
| 4763 | return NULL; |
| 4764 | |
| 4765 | id_refs = tmp_id_refs; |
| 4766 | |
| 4767 | for (i = 0; i < refs_size; i++) { |
| 4768 | struct ref **tmp; |
| 4769 | |
| 4770 | if (strcmp(id, refs[i].id)) |
| 4771 | continue; |
| 4772 | |
| 4773 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
| 4774 | if (!tmp) { |
| 4775 | if (ref_list) |
| 4776 | free(ref_list); |
| 4777 | return NULL; |
| 4778 | } |
| 4779 | |
| 4780 | ref_list = tmp; |
| 4781 | if (ref_list_size > 0) |
| 4782 | ref_list[ref_list_size - 1]->next = 1; |
| 4783 | ref_list[ref_list_size] = &refs[i]; |
| 4784 | |
| 4785 | /* XXX: The properties of the commit chains ensures that we can |
| 4786 | * safely modify the shared ref. The repo references will |
| 4787 | * always be similar for the same id. */ |
| 4788 | ref_list[ref_list_size]->next = 0; |
| 4789 | ref_list_size++; |
| 4790 | } |
| 4791 | |
| 4792 | if (ref_list) |
| 4793 | id_refs[id_refs_size++] = ref_list; |
| 4794 | |
| 4795 | return ref_list; |
| 4796 | } |
| 4797 | |
| 4798 | static int |
| 4799 | read_ref(char *id, size_t idlen, char *name, size_t namelen) |
| 4800 | { |
| 4801 | struct ref *ref; |
| 4802 | bool tag = FALSE; |
| 4803 | bool remote = FALSE; |
| 4804 | |
| 4805 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
| 4806 | /* Commits referenced by tags has "^{}" appended. */ |
| 4807 | if (name[namelen - 1] != '}') |
| 4808 | return OK; |
| 4809 | |
| 4810 | while (namelen > 0 && name[namelen] != '^') |
| 4811 | namelen--; |
| 4812 | |
| 4813 | tag = TRUE; |
| 4814 | namelen -= STRING_SIZE("refs/tags/"); |
| 4815 | name += STRING_SIZE("refs/tags/"); |
| 4816 | |
| 4817 | } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) { |
| 4818 | remote = TRUE; |
| 4819 | namelen -= STRING_SIZE("refs/remotes/"); |
| 4820 | name += STRING_SIZE("refs/remotes/"); |
| 4821 | |
| 4822 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
| 4823 | namelen -= STRING_SIZE("refs/heads/"); |
| 4824 | name += STRING_SIZE("refs/heads/"); |
| 4825 | |
| 4826 | } else if (!strcmp(name, "HEAD")) { |
| 4827 | return OK; |
| 4828 | } |
| 4829 | |
| 4830 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
| 4831 | if (!refs) |
| 4832 | return ERR; |
| 4833 | |
| 4834 | ref = &refs[refs_size++]; |
| 4835 | ref->name = malloc(namelen + 1); |
| 4836 | if (!ref->name) |
| 4837 | return ERR; |
| 4838 | |
| 4839 | strncpy(ref->name, name, namelen); |
| 4840 | ref->name[namelen] = 0; |
| 4841 | ref->tag = tag; |
| 4842 | ref->remote = remote; |
| 4843 | string_copy_rev(ref->id, id); |
| 4844 | |
| 4845 | return OK; |
| 4846 | } |
| 4847 | |
| 4848 | static int |
| 4849 | load_refs(void) |
| 4850 | { |
| 4851 | const char *cmd_env = getenv("TIG_LS_REMOTE"); |
| 4852 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; |
| 4853 | |
| 4854 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
| 4855 | } |
| 4856 | |
| 4857 | static int |
| 4858 | read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen) |
| 4859 | { |
| 4860 | if (!strcmp(name, "i18n.commitencoding")) |
| 4861 | string_ncopy(opt_encoding, value, valuelen); |
| 4862 | |
| 4863 | if (!strcmp(name, "core.editor")) |
| 4864 | string_ncopy(opt_editor, value, valuelen); |
| 4865 | |
| 4866 | return OK; |
| 4867 | } |
| 4868 | |
| 4869 | static int |
| 4870 | load_repo_config(void) |
| 4871 | { |
| 4872 | return read_properties(popen(GIT_CONFIG " --list", "r"), |
| 4873 | "=", read_repo_config_option); |
| 4874 | } |
| 4875 | |
| 4876 | static int |
| 4877 | read_repo_info(char *name, size_t namelen, char *value, size_t valuelen) |
| 4878 | { |
| 4879 | if (!opt_git_dir[0]) { |
| 4880 | string_ncopy(opt_git_dir, name, namelen); |
| 4881 | |
| 4882 | } else if (opt_is_inside_work_tree == -1) { |
| 4883 | /* This can be 3 different values depending on the |
| 4884 | * version of git being used. If git-rev-parse does not |
| 4885 | * understand --is-inside-work-tree it will simply echo |
| 4886 | * the option else either "true" or "false" is printed. |
| 4887 | * Default to true for the unknown case. */ |
| 4888 | opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE; |
| 4889 | |
| 4890 | } else { |
| 4891 | string_ncopy(opt_cdup, name, namelen); |
| 4892 | } |
| 4893 | |
| 4894 | return OK; |
| 4895 | } |
| 4896 | |
| 4897 | /* XXX: The line outputted by "--show-cdup" can be empty so the option |
| 4898 | * must be the last one! */ |
| 4899 | static int |
| 4900 | load_repo_info(void) |
| 4901 | { |
| 4902 | return read_properties(popen("git rev-parse --git-dir --is-inside-work-tree --show-cdup 2>/dev/null", "r"), |
| 4903 | "=", read_repo_info); |
| 4904 | } |
| 4905 | |
| 4906 | static int |
| 4907 | read_properties(FILE *pipe, const char *separators, |
| 4908 | int (*read_property)(char *, size_t, char *, size_t)) |
| 4909 | { |
| 4910 | char buffer[BUFSIZ]; |
| 4911 | char *name; |
| 4912 | int state = OK; |
| 4913 | |
| 4914 | if (!pipe) |
| 4915 | return ERR; |
| 4916 | |
| 4917 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
| 4918 | char *value; |
| 4919 | size_t namelen; |
| 4920 | size_t valuelen; |
| 4921 | |
| 4922 | name = chomp_string(name); |
| 4923 | namelen = strcspn(name, separators); |
| 4924 | |
| 4925 | if (name[namelen]) { |
| 4926 | name[namelen] = 0; |
| 4927 | value = chomp_string(name + namelen + 1); |
| 4928 | valuelen = strlen(value); |
| 4929 | |
| 4930 | } else { |
| 4931 | value = ""; |
| 4932 | valuelen = 0; |
| 4933 | } |
| 4934 | |
| 4935 | state = read_property(name, namelen, value, valuelen); |
| 4936 | } |
| 4937 | |
| 4938 | if (state != ERR && ferror(pipe)) |
| 4939 | state = ERR; |
| 4940 | |
| 4941 | pclose(pipe); |
| 4942 | |
| 4943 | return state; |
| 4944 | } |
| 4945 | |
| 4946 | |
| 4947 | /* |
| 4948 | * Main |
| 4949 | */ |
| 4950 | |
| 4951 | static void __NORETURN |
| 4952 | quit(int sig) |
| 4953 | { |
| 4954 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
| 4955 | if (cursed) |
| 4956 | endwin(); |
| 4957 | exit(0); |
| 4958 | } |
| 4959 | |
| 4960 | static void __NORETURN |
| 4961 | die(const char *err, ...) |
| 4962 | { |
| 4963 | va_list args; |
| 4964 | |
| 4965 | endwin(); |
| 4966 | |
| 4967 | va_start(args, err); |
| 4968 | fputs("tig: ", stderr); |
| 4969 | vfprintf(stderr, err, args); |
| 4970 | fputs("\n", stderr); |
| 4971 | va_end(args); |
| 4972 | |
| 4973 | exit(1); |
| 4974 | } |
| 4975 | |
| 4976 | static void |
| 4977 | warn(const char *msg, ...) |
| 4978 | { |
| 4979 | va_list args; |
| 4980 | |
| 4981 | va_start(args, msg); |
| 4982 | fputs("tig warning: ", stderr); |
| 4983 | vfprintf(stderr, msg, args); |
| 4984 | fputs("\n", stderr); |
| 4985 | va_end(args); |
| 4986 | } |
| 4987 | |
| 4988 | int |
| 4989 | main(int argc, char *argv[]) |
| 4990 | { |
| 4991 | struct view *view; |
| 4992 | enum request request; |
| 4993 | size_t i; |
| 4994 | |
| 4995 | signal(SIGINT, quit); |
| 4996 | |
| 4997 | if (setlocale(LC_ALL, "")) { |
| 4998 | char *codeset = nl_langinfo(CODESET); |
| 4999 | |
| 5000 | string_ncopy(opt_codeset, codeset, strlen(codeset)); |
| 5001 | } |
| 5002 | |
| 5003 | if (load_repo_info() == ERR) |
| 5004 | die("Failed to load repo info."); |
| 5005 | |
| 5006 | if (load_options() == ERR) |
| 5007 | die("Failed to load user config."); |
| 5008 | |
| 5009 | /* Load the repo config file so options can be overwritten from |
| 5010 | * the command line. */ |
| 5011 | if (load_repo_config() == ERR) |
| 5012 | die("Failed to load repo config."); |
| 5013 | |
| 5014 | if (!parse_options(argc, argv)) |
| 5015 | return 0; |
| 5016 | |
| 5017 | /* Require a git repository unless when running in pager mode. */ |
| 5018 | if (!opt_git_dir[0]) |
| 5019 | die("Not a git repository"); |
| 5020 | |
| 5021 | if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) { |
| 5022 | opt_iconv = iconv_open(opt_codeset, opt_encoding); |
| 5023 | if (opt_iconv == ICONV_NONE) |
| 5024 | die("Failed to initialize character set conversion"); |
| 5025 | } |
| 5026 | |
| 5027 | if (load_refs() == ERR) |
| 5028 | die("Failed to load refs."); |
| 5029 | |
| 5030 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
| 5031 | view->cmd_env = getenv(view->cmd_env); |
| 5032 | |
| 5033 | request = opt_request; |
| 5034 | |
| 5035 | init_display(); |
| 5036 | |
| 5037 | while (view_driver(display[current_view], request)) { |
| 5038 | int key; |
| 5039 | int i; |
| 5040 | |
| 5041 | foreach_view (view, i) |
| 5042 | update_view(view); |
| 5043 | |
| 5044 | /* Refresh, accept single keystroke of input */ |
| 5045 | key = wgetch(status_win); |
| 5046 | |
| 5047 | /* wgetch() with nodelay() enabled returns ERR when there's no |
| 5048 | * input. */ |
| 5049 | if (key == ERR) { |
| 5050 | request = REQ_NONE; |
| 5051 | continue; |
| 5052 | } |
| 5053 | |
| 5054 | request = get_keybinding(display[current_view]->keymap, key); |
| 5055 | |
| 5056 | /* Some low-level request handling. This keeps access to |
| 5057 | * status_win restricted. */ |
| 5058 | switch (request) { |
| 5059 | case REQ_PROMPT: |
| 5060 | { |
| 5061 | char *cmd = read_prompt(":"); |
| 5062 | |
| 5063 | if (cmd && string_format(opt_cmd, "git %s", cmd)) { |
| 5064 | if (strncmp(cmd, "show", 4) && isspace(cmd[4])) { |
| 5065 | opt_request = REQ_VIEW_DIFF; |
| 5066 | } else { |
| 5067 | opt_request = REQ_VIEW_PAGER; |
| 5068 | } |
| 5069 | break; |
| 5070 | } |
| 5071 | |
| 5072 | request = REQ_NONE; |
| 5073 | break; |
| 5074 | } |
| 5075 | case REQ_SEARCH: |
| 5076 | case REQ_SEARCH_BACK: |
| 5077 | { |
| 5078 | const char *prompt = request == REQ_SEARCH |
| 5079 | ? "/" : "?"; |
| 5080 | char *search = read_prompt(prompt); |
| 5081 | |
| 5082 | if (search) |
| 5083 | string_ncopy(opt_search, search, strlen(search)); |
| 5084 | else |
| 5085 | request = REQ_NONE; |
| 5086 | break; |
| 5087 | } |
| 5088 | case REQ_SCREEN_RESIZE: |
| 5089 | { |
| 5090 | int height, width; |
| 5091 | |
| 5092 | getmaxyx(stdscr, height, width); |
| 5093 | |
| 5094 | /* Resize the status view and let the view driver take |
| 5095 | * care of resizing the displayed views. */ |
| 5096 | wresize(status_win, 1, width); |
| 5097 | mvwin(status_win, height - 1, 0); |
| 5098 | wrefresh(status_win); |
| 5099 | break; |
| 5100 | } |
| 5101 | default: |
| 5102 | break; |
| 5103 | } |
| 5104 | } |
| 5105 | |
| 5106 | quit(0); |
| 5107 | |
| 5108 | return 0; |
| 5109 | } |