| 1 | /* Copyright (c) 2006 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 | #ifndef VERSION |
| 15 | #define VERSION "tig-0.4.git" |
| 16 | #endif |
| 17 | |
| 18 | #ifndef DEBUG |
| 19 | #define NDEBUG |
| 20 | #endif |
| 21 | |
| 22 | #include <assert.h> |
| 23 | #include <errno.h> |
| 24 | #include <ctype.h> |
| 25 | #include <signal.h> |
| 26 | #include <stdarg.h> |
| 27 | #include <stdio.h> |
| 28 | #include <stdlib.h> |
| 29 | #include <string.h> |
| 30 | #include <unistd.h> |
| 31 | #include <time.h> |
| 32 | |
| 33 | #include <sys/types.h> |
| 34 | #include <regex.h> |
| 35 | |
| 36 | #include <locale.h> |
| 37 | #include <langinfo.h> |
| 38 | #include <iconv.h> |
| 39 | |
| 40 | #include <curses.h> |
| 41 | |
| 42 | #if __GNUC__ >= 3 |
| 43 | #define __NORETURN __attribute__((__noreturn__)) |
| 44 | #else |
| 45 | #define __NORETURN |
| 46 | #endif |
| 47 | |
| 48 | static void __NORETURN die(const char *err, ...); |
| 49 | static void report(const char *msg, ...); |
| 50 | static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, int, char *, int)); |
| 51 | static void set_nonblocking_input(bool loading); |
| 52 | static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed); |
| 53 | |
| 54 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) |
| 55 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) |
| 56 | |
| 57 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
| 58 | #define STRING_SIZE(x) (sizeof(x) - 1) |
| 59 | |
| 60 | #define SIZEOF_STR 1024 /* Default string size. */ |
| 61 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
| 62 | #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */ |
| 63 | |
| 64 | /* This color name can be used to refer to the default term colors. */ |
| 65 | #define COLOR_DEFAULT (-1) |
| 66 | |
| 67 | #define ICONV_NONE ((iconv_t) -1) |
| 68 | |
| 69 | /* The format and size of the date column in the main view. */ |
| 70 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
| 71 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
| 72 | |
| 73 | #define AUTHOR_COLS 20 |
| 74 | |
| 75 | /* The default interval between line numbers. */ |
| 76 | #define NUMBER_INTERVAL 1 |
| 77 | |
| 78 | #define TABSIZE 8 |
| 79 | |
| 80 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
| 81 | |
| 82 | #define TIG_LS_REMOTE \ |
| 83 | "git ls-remote . 2>/dev/null" |
| 84 | |
| 85 | #define TIG_DIFF_CMD \ |
| 86 | "git show --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null" |
| 87 | |
| 88 | #define TIG_LOG_CMD \ |
| 89 | "git log --cc --stat -n100 %s 2>/dev/null" |
| 90 | |
| 91 | #define TIG_MAIN_CMD \ |
| 92 | "git log --topo-order --pretty=raw %s 2>/dev/null" |
| 93 | |
| 94 | #define TIG_TREE_CMD \ |
| 95 | "git ls-tree %s %s" |
| 96 | |
| 97 | #define TIG_BLOB_CMD \ |
| 98 | "git cat-file blob %s" |
| 99 | |
| 100 | /* XXX: Needs to be defined to the empty string. */ |
| 101 | #define TIG_HELP_CMD "" |
| 102 | #define TIG_PAGER_CMD "" |
| 103 | |
| 104 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
| 105 | #define KEY_TAB '\t' |
| 106 | #define KEY_RETURN '\r' |
| 107 | #define KEY_ESC 27 |
| 108 | |
| 109 | |
| 110 | struct ref { |
| 111 | char *name; /* Ref name; tag or head names are shortened. */ |
| 112 | char id[41]; /* Commit SHA1 ID */ |
| 113 | unsigned int tag:1; /* Is it a tag? */ |
| 114 | unsigned int next:1; /* For ref lists: are there more refs? */ |
| 115 | }; |
| 116 | |
| 117 | static struct ref **get_refs(char *id); |
| 118 | |
| 119 | struct int_map { |
| 120 | const char *name; |
| 121 | int namelen; |
| 122 | int value; |
| 123 | }; |
| 124 | |
| 125 | static int |
| 126 | set_from_int_map(struct int_map *map, size_t map_size, |
| 127 | int *value, const char *name, int namelen) |
| 128 | { |
| 129 | |
| 130 | int i; |
| 131 | |
| 132 | for (i = 0; i < map_size; i++) |
| 133 | if (namelen == map[i].namelen && |
| 134 | !strncasecmp(name, map[i].name, namelen)) { |
| 135 | *value = map[i].value; |
| 136 | return OK; |
| 137 | } |
| 138 | |
| 139 | return ERR; |
| 140 | } |
| 141 | |
| 142 | |
| 143 | /* |
| 144 | * String helpers |
| 145 | */ |
| 146 | |
| 147 | static inline void |
| 148 | string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen) |
| 149 | { |
| 150 | if (srclen > dstlen - 1) |
| 151 | srclen = dstlen - 1; |
| 152 | |
| 153 | strncpy(dst, src, srclen); |
| 154 | dst[srclen] = 0; |
| 155 | } |
| 156 | |
| 157 | /* Shorthands for safely copying into a fixed buffer. */ |
| 158 | |
| 159 | #define string_copy(dst, src) \ |
| 160 | string_ncopy_do(dst, sizeof(dst), src, sizeof(dst)) |
| 161 | |
| 162 | #define string_ncopy(dst, src, srclen) \ |
| 163 | string_ncopy_do(dst, sizeof(dst), src, srclen) |
| 164 | |
| 165 | static char * |
| 166 | chomp_string(char *name) |
| 167 | { |
| 168 | int namelen; |
| 169 | |
| 170 | while (isspace(*name)) |
| 171 | name++; |
| 172 | |
| 173 | namelen = strlen(name) - 1; |
| 174 | while (namelen > 0 && isspace(name[namelen])) |
| 175 | name[namelen--] = 0; |
| 176 | |
| 177 | return name; |
| 178 | } |
| 179 | |
| 180 | static bool |
| 181 | string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...) |
| 182 | { |
| 183 | va_list args; |
| 184 | size_t pos = bufpos ? *bufpos : 0; |
| 185 | |
| 186 | va_start(args, fmt); |
| 187 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); |
| 188 | va_end(args); |
| 189 | |
| 190 | if (bufpos) |
| 191 | *bufpos = pos; |
| 192 | |
| 193 | return pos >= bufsize ? FALSE : TRUE; |
| 194 | } |
| 195 | |
| 196 | #define string_format(buf, fmt, args...) \ |
| 197 | string_nformat(buf, sizeof(buf), NULL, fmt, args) |
| 198 | |
| 199 | #define string_format_from(buf, from, fmt, args...) \ |
| 200 | string_nformat(buf, sizeof(buf), from, fmt, args) |
| 201 | |
| 202 | static int |
| 203 | string_enum_compare(const char *str1, const char *str2, int len) |
| 204 | { |
| 205 | size_t i; |
| 206 | |
| 207 | #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.') |
| 208 | |
| 209 | /* Diff-Header == DIFF_HEADER */ |
| 210 | for (i = 0; i < len; i++) { |
| 211 | if (toupper(str1[i]) == toupper(str2[i])) |
| 212 | continue; |
| 213 | |
| 214 | if (string_enum_sep(str1[i]) && |
| 215 | string_enum_sep(str2[i])) |
| 216 | continue; |
| 217 | |
| 218 | return str1[i] - str2[i]; |
| 219 | } |
| 220 | |
| 221 | return 0; |
| 222 | } |
| 223 | |
| 224 | /* Shell quoting |
| 225 | * |
| 226 | * NOTE: The following is a slightly modified copy of the git project's shell |
| 227 | * quoting routines found in the quote.c file. |
| 228 | * |
| 229 | * Help to copy the thing properly quoted for the shell safety. any single |
| 230 | * quote is replaced with '\'', any exclamation point is replaced with '\!', |
| 231 | * and the whole thing is enclosed in a |
| 232 | * |
| 233 | * E.g. |
| 234 | * original sq_quote result |
| 235 | * name ==> name ==> 'name' |
| 236 | * a b ==> a b ==> 'a b' |
| 237 | * a'b ==> a'\''b ==> 'a'\''b' |
| 238 | * a!b ==> a'\!'b ==> 'a'\!'b' |
| 239 | */ |
| 240 | |
| 241 | static size_t |
| 242 | sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src) |
| 243 | { |
| 244 | char c; |
| 245 | |
| 246 | #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0) |
| 247 | |
| 248 | BUFPUT('\''); |
| 249 | while ((c = *src++)) { |
| 250 | if (c == '\'' || c == '!') { |
| 251 | BUFPUT('\''); |
| 252 | BUFPUT('\\'); |
| 253 | BUFPUT(c); |
| 254 | BUFPUT('\''); |
| 255 | } else { |
| 256 | BUFPUT(c); |
| 257 | } |
| 258 | } |
| 259 | BUFPUT('\''); |
| 260 | |
| 261 | return bufsize; |
| 262 | } |
| 263 | |
| 264 | |
| 265 | /* |
| 266 | * User requests |
| 267 | */ |
| 268 | |
| 269 | #define REQ_INFO \ |
| 270 | /* XXX: Keep the view request first and in sync with views[]. */ \ |
| 271 | REQ_GROUP("View switching") \ |
| 272 | REQ_(VIEW_MAIN, "Show main view"), \ |
| 273 | REQ_(VIEW_DIFF, "Show diff view"), \ |
| 274 | REQ_(VIEW_LOG, "Show log view"), \ |
| 275 | REQ_(VIEW_TREE, "Show tree view"), \ |
| 276 | REQ_(VIEW_BLOB, "Show blob view"), \ |
| 277 | REQ_(VIEW_HELP, "Show help page"), \ |
| 278 | REQ_(VIEW_PAGER, "Show pager view"), \ |
| 279 | \ |
| 280 | REQ_GROUP("View manipulation") \ |
| 281 | REQ_(ENTER, "Enter current line and scroll"), \ |
| 282 | REQ_(NEXT, "Move to next"), \ |
| 283 | REQ_(PREVIOUS, "Move to previous"), \ |
| 284 | REQ_(VIEW_NEXT, "Move focus to next view"), \ |
| 285 | REQ_(VIEW_CLOSE, "Close the current view"), \ |
| 286 | REQ_(QUIT, "Close all views and quit"), \ |
| 287 | \ |
| 288 | REQ_GROUP("Cursor navigation") \ |
| 289 | REQ_(MOVE_UP, "Move cursor one line up"), \ |
| 290 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ |
| 291 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ |
| 292 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ |
| 293 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ |
| 294 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ |
| 295 | \ |
| 296 | REQ_GROUP("Scrolling") \ |
| 297 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ |
| 298 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ |
| 299 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ |
| 300 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ |
| 301 | \ |
| 302 | REQ_GROUP("Searching") \ |
| 303 | REQ_(SEARCH, "Search the view"), \ |
| 304 | REQ_(SEARCH_BACK, "Search backwards in the view"), \ |
| 305 | REQ_(FIND_NEXT, "Find next search match"), \ |
| 306 | REQ_(FIND_PREV, "Find previous search match"), \ |
| 307 | \ |
| 308 | REQ_GROUP("Misc") \ |
| 309 | REQ_(NONE, "Do nothing"), \ |
| 310 | REQ_(PROMPT, "Bring up the prompt"), \ |
| 311 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ |
| 312 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ |
| 313 | REQ_(SHOW_VERSION, "Show version information"), \ |
| 314 | REQ_(STOP_LOADING, "Stop all loading views"), \ |
| 315 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ |
| 316 | REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization") |
| 317 | |
| 318 | |
| 319 | /* User action requests. */ |
| 320 | enum request { |
| 321 | #define REQ_GROUP(help) |
| 322 | #define REQ_(req, help) REQ_##req |
| 323 | |
| 324 | /* Offset all requests to avoid conflicts with ncurses getch values. */ |
| 325 | REQ_OFFSET = KEY_MAX + 1, |
| 326 | REQ_INFO, |
| 327 | REQ_UNKNOWN, |
| 328 | |
| 329 | #undef REQ_GROUP |
| 330 | #undef REQ_ |
| 331 | }; |
| 332 | |
| 333 | struct request_info { |
| 334 | enum request request; |
| 335 | char *name; |
| 336 | int namelen; |
| 337 | char *help; |
| 338 | }; |
| 339 | |
| 340 | static struct request_info req_info[] = { |
| 341 | #define REQ_GROUP(help) { 0, NULL, 0, (help) }, |
| 342 | #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) } |
| 343 | REQ_INFO |
| 344 | #undef REQ_GROUP |
| 345 | #undef REQ_ |
| 346 | }; |
| 347 | |
| 348 | static enum request |
| 349 | get_request(const char *name) |
| 350 | { |
| 351 | int namelen = strlen(name); |
| 352 | int i; |
| 353 | |
| 354 | for (i = 0; i < ARRAY_SIZE(req_info); i++) |
| 355 | if (req_info[i].namelen == namelen && |
| 356 | !string_enum_compare(req_info[i].name, name, namelen)) |
| 357 | return req_info[i].request; |
| 358 | |
| 359 | return REQ_UNKNOWN; |
| 360 | } |
| 361 | |
| 362 | |
| 363 | /* |
| 364 | * Options |
| 365 | */ |
| 366 | |
| 367 | static const char usage[] = |
| 368 | VERSION " (" __DATE__ ")\n" |
| 369 | "\n" |
| 370 | "Usage: tig [options]\n" |
| 371 | " or: tig [options] [--] [git log options]\n" |
| 372 | " or: tig [options] log [git log options]\n" |
| 373 | " or: tig [options] diff [git diff options]\n" |
| 374 | " or: tig [options] show [git show options]\n" |
| 375 | " or: tig [options] < [git command output]\n" |
| 376 | "\n" |
| 377 | "Options:\n" |
| 378 | " -l Start up in log view\n" |
| 379 | " -d Start up in diff view\n" |
| 380 | " -n[I], --line-number[=I] Show line numbers with given interval\n" |
| 381 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
| 382 | " -- Mark end of tig options\n" |
| 383 | " -v, --version Show version and exit\n" |
| 384 | " -h, --help Show help message and exit\n"; |
| 385 | |
| 386 | /* Option and state variables. */ |
| 387 | static bool opt_line_number = FALSE; |
| 388 | static bool opt_rev_graph = TRUE; |
| 389 | static int opt_num_interval = NUMBER_INTERVAL; |
| 390 | static int opt_tab_size = TABSIZE; |
| 391 | static enum request opt_request = REQ_VIEW_MAIN; |
| 392 | static char opt_cmd[SIZEOF_STR] = ""; |
| 393 | static char opt_path[SIZEOF_STR] = ""; |
| 394 | static FILE *opt_pipe = NULL; |
| 395 | static char opt_encoding[20] = "UTF-8"; |
| 396 | static bool opt_utf8 = TRUE; |
| 397 | static char opt_codeset[20] = "UTF-8"; |
| 398 | static iconv_t opt_iconv = ICONV_NONE; |
| 399 | static char opt_search[SIZEOF_STR] = ""; |
| 400 | |
| 401 | enum option_type { |
| 402 | OPT_NONE, |
| 403 | OPT_INT, |
| 404 | }; |
| 405 | |
| 406 | static bool |
| 407 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) |
| 408 | { |
| 409 | va_list args; |
| 410 | char *value = ""; |
| 411 | int *number; |
| 412 | |
| 413 | if (opt[0] != '-') |
| 414 | return FALSE; |
| 415 | |
| 416 | if (opt[1] == '-') { |
| 417 | int namelen = strlen(name); |
| 418 | |
| 419 | opt += 2; |
| 420 | |
| 421 | if (strncmp(opt, name, namelen)) |
| 422 | return FALSE; |
| 423 | |
| 424 | if (opt[namelen] == '=') |
| 425 | value = opt + namelen + 1; |
| 426 | |
| 427 | } else { |
| 428 | if (!short_name || opt[1] != short_name) |
| 429 | return FALSE; |
| 430 | value = opt + 2; |
| 431 | } |
| 432 | |
| 433 | va_start(args, type); |
| 434 | if (type == OPT_INT) { |
| 435 | number = va_arg(args, int *); |
| 436 | if (isdigit(*value)) |
| 437 | *number = atoi(value); |
| 438 | } |
| 439 | va_end(args); |
| 440 | |
| 441 | return TRUE; |
| 442 | } |
| 443 | |
| 444 | /* Returns the index of log or diff command or -1 to exit. */ |
| 445 | static bool |
| 446 | parse_options(int argc, char *argv[]) |
| 447 | { |
| 448 | int i; |
| 449 | |
| 450 | for (i = 1; i < argc; i++) { |
| 451 | char *opt = argv[i]; |
| 452 | |
| 453 | if (!strcmp(opt, "-l")) { |
| 454 | opt_request = REQ_VIEW_LOG; |
| 455 | continue; |
| 456 | } |
| 457 | |
| 458 | if (!strcmp(opt, "-d")) { |
| 459 | opt_request = REQ_VIEW_DIFF; |
| 460 | continue; |
| 461 | } |
| 462 | |
| 463 | if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
| 464 | opt_line_number = TRUE; |
| 465 | continue; |
| 466 | } |
| 467 | |
| 468 | if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
| 469 | opt_tab_size = MIN(opt_tab_size, TABSIZE); |
| 470 | continue; |
| 471 | } |
| 472 | |
| 473 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
| 474 | printf("tig version %s\n", VERSION); |
| 475 | return FALSE; |
| 476 | } |
| 477 | |
| 478 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
| 479 | printf(usage); |
| 480 | return FALSE; |
| 481 | } |
| 482 | |
| 483 | if (!strcmp(opt, "--")) { |
| 484 | i++; |
| 485 | break; |
| 486 | } |
| 487 | |
| 488 | if (!strcmp(opt, "log") || |
| 489 | !strcmp(opt, "diff") || |
| 490 | !strcmp(opt, "show")) { |
| 491 | opt_request = opt[0] == 'l' |
| 492 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; |
| 493 | break; |
| 494 | } |
| 495 | |
| 496 | if (opt[0] && opt[0] != '-') |
| 497 | break; |
| 498 | |
| 499 | die("unknown option '%s'\n\n%s", opt, usage); |
| 500 | } |
| 501 | |
| 502 | if (!isatty(STDIN_FILENO)) { |
| 503 | opt_request = REQ_VIEW_PAGER; |
| 504 | opt_pipe = stdin; |
| 505 | |
| 506 | } else if (i < argc) { |
| 507 | size_t buf_size; |
| 508 | |
| 509 | if (opt_request == REQ_VIEW_MAIN) |
| 510 | /* XXX: This is vulnerable to the user overriding |
| 511 | * options required for the main view parser. */ |
| 512 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
| 513 | else |
| 514 | string_copy(opt_cmd, "git"); |
| 515 | buf_size = strlen(opt_cmd); |
| 516 | |
| 517 | while (buf_size < sizeof(opt_cmd) && i < argc) { |
| 518 | opt_cmd[buf_size++] = ' '; |
| 519 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); |
| 520 | } |
| 521 | |
| 522 | if (buf_size >= sizeof(opt_cmd)) |
| 523 | die("command too long"); |
| 524 | |
| 525 | opt_cmd[buf_size] = 0; |
| 526 | |
| 527 | } |
| 528 | |
| 529 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
| 530 | opt_utf8 = FALSE; |
| 531 | |
| 532 | return TRUE; |
| 533 | } |
| 534 | |
| 535 | |
| 536 | /* |
| 537 | * Line-oriented content detection. |
| 538 | */ |
| 539 | |
| 540 | #define LINE_INFO \ |
| 541 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 542 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 543 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
| 544 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ |
| 545 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 546 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 547 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 548 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 549 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 550 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 551 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 552 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 553 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 554 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 555 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
| 556 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 557 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 558 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 559 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 560 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 561 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
| 562 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
| 563 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 564 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 565 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
| 566 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 567 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
| 568 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
| 569 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ |
| 570 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
| 571 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
| 572 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ |
| 573 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
| 574 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
| 575 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ |
| 576 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
| 577 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ |
| 578 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
| 579 | LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
| 580 | LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL) |
| 581 | |
| 582 | enum line_type { |
| 583 | #define LINE(type, line, fg, bg, attr) \ |
| 584 | LINE_##type |
| 585 | LINE_INFO |
| 586 | #undef LINE |
| 587 | }; |
| 588 | |
| 589 | struct line_info { |
| 590 | const char *name; /* Option name. */ |
| 591 | int namelen; /* Size of option name. */ |
| 592 | const char *line; /* The start of line to match. */ |
| 593 | int linelen; /* Size of string to match. */ |
| 594 | int fg, bg, attr; /* Color and text attributes for the lines. */ |
| 595 | }; |
| 596 | |
| 597 | static struct line_info line_info[] = { |
| 598 | #define LINE(type, line, fg, bg, attr) \ |
| 599 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
| 600 | LINE_INFO |
| 601 | #undef LINE |
| 602 | }; |
| 603 | |
| 604 | static enum line_type |
| 605 | get_line_type(char *line) |
| 606 | { |
| 607 | int linelen = strlen(line); |
| 608 | enum line_type type; |
| 609 | |
| 610 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
| 611 | /* Case insensitive search matches Signed-off-by lines better. */ |
| 612 | if (linelen >= line_info[type].linelen && |
| 613 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) |
| 614 | return type; |
| 615 | |
| 616 | return LINE_DEFAULT; |
| 617 | } |
| 618 | |
| 619 | static inline int |
| 620 | get_line_attr(enum line_type type) |
| 621 | { |
| 622 | assert(type < ARRAY_SIZE(line_info)); |
| 623 | return COLOR_PAIR(type) | line_info[type].attr; |
| 624 | } |
| 625 | |
| 626 | static struct line_info * |
| 627 | get_line_info(char *name, int namelen) |
| 628 | { |
| 629 | enum line_type type; |
| 630 | |
| 631 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
| 632 | if (namelen == line_info[type].namelen && |
| 633 | !string_enum_compare(line_info[type].name, name, namelen)) |
| 634 | return &line_info[type]; |
| 635 | |
| 636 | return NULL; |
| 637 | } |
| 638 | |
| 639 | static void |
| 640 | init_colors(void) |
| 641 | { |
| 642 | int default_bg = COLOR_BLACK; |
| 643 | int default_fg = COLOR_WHITE; |
| 644 | enum line_type type; |
| 645 | |
| 646 | start_color(); |
| 647 | |
| 648 | if (use_default_colors() != ERR) { |
| 649 | default_bg = -1; |
| 650 | default_fg = -1; |
| 651 | } |
| 652 | |
| 653 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
| 654 | struct line_info *info = &line_info[type]; |
| 655 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
| 656 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; |
| 657 | |
| 658 | init_pair(type, fg, bg); |
| 659 | } |
| 660 | } |
| 661 | |
| 662 | struct line { |
| 663 | enum line_type type; |
| 664 | void *data; /* User data */ |
| 665 | }; |
| 666 | |
| 667 | |
| 668 | /* |
| 669 | * Keys |
| 670 | */ |
| 671 | |
| 672 | struct keybinding { |
| 673 | int alias; |
| 674 | enum request request; |
| 675 | struct keybinding *next; |
| 676 | }; |
| 677 | |
| 678 | static struct keybinding default_keybindings[] = { |
| 679 | /* View switching */ |
| 680 | { 'm', REQ_VIEW_MAIN }, |
| 681 | { 'd', REQ_VIEW_DIFF }, |
| 682 | { 'l', REQ_VIEW_LOG }, |
| 683 | { 't', REQ_VIEW_TREE }, |
| 684 | { 'f', REQ_VIEW_BLOB }, |
| 685 | { 'p', REQ_VIEW_PAGER }, |
| 686 | { 'h', REQ_VIEW_HELP }, |
| 687 | |
| 688 | /* View manipulation */ |
| 689 | { 'q', REQ_VIEW_CLOSE }, |
| 690 | { KEY_TAB, REQ_VIEW_NEXT }, |
| 691 | { KEY_RETURN, REQ_ENTER }, |
| 692 | { KEY_UP, REQ_PREVIOUS }, |
| 693 | { KEY_DOWN, REQ_NEXT }, |
| 694 | |
| 695 | /* Cursor navigation */ |
| 696 | { 'k', REQ_MOVE_UP }, |
| 697 | { 'j', REQ_MOVE_DOWN }, |
| 698 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, |
| 699 | { KEY_END, REQ_MOVE_LAST_LINE }, |
| 700 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, |
| 701 | { ' ', REQ_MOVE_PAGE_DOWN }, |
| 702 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, |
| 703 | { 'b', REQ_MOVE_PAGE_UP }, |
| 704 | { '-', REQ_MOVE_PAGE_UP }, |
| 705 | |
| 706 | /* Scrolling */ |
| 707 | { KEY_IC, REQ_SCROLL_LINE_UP }, |
| 708 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, |
| 709 | { 'w', REQ_SCROLL_PAGE_UP }, |
| 710 | { 's', REQ_SCROLL_PAGE_DOWN }, |
| 711 | |
| 712 | /* Searching */ |
| 713 | { '/', REQ_SEARCH }, |
| 714 | { '?', REQ_SEARCH_BACK }, |
| 715 | { 'n', REQ_FIND_NEXT }, |
| 716 | { 'N', REQ_FIND_PREV }, |
| 717 | |
| 718 | /* Misc */ |
| 719 | { 'Q', REQ_QUIT }, |
| 720 | { 'z', REQ_STOP_LOADING }, |
| 721 | { 'v', REQ_SHOW_VERSION }, |
| 722 | { 'r', REQ_SCREEN_REDRAW }, |
| 723 | { '.', REQ_TOGGLE_LINENO }, |
| 724 | { 'g', REQ_TOGGLE_REV_GRAPH }, |
| 725 | { ':', REQ_PROMPT }, |
| 726 | |
| 727 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ |
| 728 | { ERR, REQ_NONE }, |
| 729 | |
| 730 | /* Using the ncurses SIGWINCH handler. */ |
| 731 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, |
| 732 | }; |
| 733 | |
| 734 | #define KEYMAP_INFO \ |
| 735 | KEYMAP_(GENERIC), \ |
| 736 | KEYMAP_(MAIN), \ |
| 737 | KEYMAP_(DIFF), \ |
| 738 | KEYMAP_(LOG), \ |
| 739 | KEYMAP_(TREE), \ |
| 740 | KEYMAP_(BLOB), \ |
| 741 | KEYMAP_(PAGER), \ |
| 742 | KEYMAP_(HELP) \ |
| 743 | |
| 744 | enum keymap { |
| 745 | #define KEYMAP_(name) KEYMAP_##name |
| 746 | KEYMAP_INFO |
| 747 | #undef KEYMAP_ |
| 748 | }; |
| 749 | |
| 750 | static struct int_map keymap_table[] = { |
| 751 | #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name } |
| 752 | KEYMAP_INFO |
| 753 | #undef KEYMAP_ |
| 754 | }; |
| 755 | |
| 756 | #define set_keymap(map, name) \ |
| 757 | set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name)) |
| 758 | |
| 759 | static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)]; |
| 760 | |
| 761 | static void |
| 762 | add_keybinding(enum keymap keymap, enum request request, int key) |
| 763 | { |
| 764 | struct keybinding *keybinding; |
| 765 | |
| 766 | keybinding = calloc(1, sizeof(*keybinding)); |
| 767 | if (!keybinding) |
| 768 | die("Failed to allocate keybinding"); |
| 769 | |
| 770 | keybinding->alias = key; |
| 771 | keybinding->request = request; |
| 772 | keybinding->next = keybindings[keymap]; |
| 773 | keybindings[keymap] = keybinding; |
| 774 | } |
| 775 | |
| 776 | /* Looks for a key binding first in the given map, then in the generic map, and |
| 777 | * lastly in the default keybindings. */ |
| 778 | static enum request |
| 779 | get_keybinding(enum keymap keymap, int key) |
| 780 | { |
| 781 | struct keybinding *kbd; |
| 782 | int i; |
| 783 | |
| 784 | for (kbd = keybindings[keymap]; kbd; kbd = kbd->next) |
| 785 | if (kbd->alias == key) |
| 786 | return kbd->request; |
| 787 | |
| 788 | for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next) |
| 789 | if (kbd->alias == key) |
| 790 | return kbd->request; |
| 791 | |
| 792 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) |
| 793 | if (default_keybindings[i].alias == key) |
| 794 | return default_keybindings[i].request; |
| 795 | |
| 796 | return (enum request) key; |
| 797 | } |
| 798 | |
| 799 | |
| 800 | struct key { |
| 801 | char *name; |
| 802 | int value; |
| 803 | }; |
| 804 | |
| 805 | static struct key key_table[] = { |
| 806 | { "Enter", KEY_RETURN }, |
| 807 | { "Space", ' ' }, |
| 808 | { "Backspace", KEY_BACKSPACE }, |
| 809 | { "Tab", KEY_TAB }, |
| 810 | { "Escape", KEY_ESC }, |
| 811 | { "Left", KEY_LEFT }, |
| 812 | { "Right", KEY_RIGHT }, |
| 813 | { "Up", KEY_UP }, |
| 814 | { "Down", KEY_DOWN }, |
| 815 | { "Insert", KEY_IC }, |
| 816 | { "Delete", KEY_DC }, |
| 817 | { "Hash", '#' }, |
| 818 | { "Home", KEY_HOME }, |
| 819 | { "End", KEY_END }, |
| 820 | { "PageUp", KEY_PPAGE }, |
| 821 | { "PageDown", KEY_NPAGE }, |
| 822 | { "F1", KEY_F(1) }, |
| 823 | { "F2", KEY_F(2) }, |
| 824 | { "F3", KEY_F(3) }, |
| 825 | { "F4", KEY_F(4) }, |
| 826 | { "F5", KEY_F(5) }, |
| 827 | { "F6", KEY_F(6) }, |
| 828 | { "F7", KEY_F(7) }, |
| 829 | { "F8", KEY_F(8) }, |
| 830 | { "F9", KEY_F(9) }, |
| 831 | { "F10", KEY_F(10) }, |
| 832 | { "F11", KEY_F(11) }, |
| 833 | { "F12", KEY_F(12) }, |
| 834 | }; |
| 835 | |
| 836 | static int |
| 837 | get_key_value(const char *name) |
| 838 | { |
| 839 | int i; |
| 840 | |
| 841 | for (i = 0; i < ARRAY_SIZE(key_table); i++) |
| 842 | if (!strcasecmp(key_table[i].name, name)) |
| 843 | return key_table[i].value; |
| 844 | |
| 845 | if (strlen(name) == 1 && isprint(*name)) |
| 846 | return (int) *name; |
| 847 | |
| 848 | return ERR; |
| 849 | } |
| 850 | |
| 851 | static char * |
| 852 | get_key(enum request request) |
| 853 | { |
| 854 | static char buf[BUFSIZ]; |
| 855 | static char key_char[] = "'X'"; |
| 856 | size_t pos = 0; |
| 857 | char *sep = " "; |
| 858 | int i; |
| 859 | |
| 860 | buf[pos] = 0; |
| 861 | |
| 862 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) { |
| 863 | struct keybinding *keybinding = &default_keybindings[i]; |
| 864 | char *seq = NULL; |
| 865 | int key; |
| 866 | |
| 867 | if (keybinding->request != request) |
| 868 | continue; |
| 869 | |
| 870 | for (key = 0; key < ARRAY_SIZE(key_table); key++) |
| 871 | if (key_table[key].value == keybinding->alias) |
| 872 | seq = key_table[key].name; |
| 873 | |
| 874 | if (seq == NULL && |
| 875 | keybinding->alias < 127 && |
| 876 | isprint(keybinding->alias)) { |
| 877 | key_char[1] = (char) keybinding->alias; |
| 878 | seq = key_char; |
| 879 | } |
| 880 | |
| 881 | if (!seq) |
| 882 | seq = "'?'"; |
| 883 | |
| 884 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) |
| 885 | return "Too many keybindings!"; |
| 886 | sep = ", "; |
| 887 | } |
| 888 | |
| 889 | return buf; |
| 890 | } |
| 891 | |
| 892 | |
| 893 | /* |
| 894 | * User config file handling. |
| 895 | */ |
| 896 | |
| 897 | static struct int_map color_map[] = { |
| 898 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } |
| 899 | COLOR_MAP(DEFAULT), |
| 900 | COLOR_MAP(BLACK), |
| 901 | COLOR_MAP(BLUE), |
| 902 | COLOR_MAP(CYAN), |
| 903 | COLOR_MAP(GREEN), |
| 904 | COLOR_MAP(MAGENTA), |
| 905 | COLOR_MAP(RED), |
| 906 | COLOR_MAP(WHITE), |
| 907 | COLOR_MAP(YELLOW), |
| 908 | }; |
| 909 | |
| 910 | #define set_color(color, name) \ |
| 911 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) |
| 912 | |
| 913 | static struct int_map attr_map[] = { |
| 914 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } |
| 915 | ATTR_MAP(NORMAL), |
| 916 | ATTR_MAP(BLINK), |
| 917 | ATTR_MAP(BOLD), |
| 918 | ATTR_MAP(DIM), |
| 919 | ATTR_MAP(REVERSE), |
| 920 | ATTR_MAP(STANDOUT), |
| 921 | ATTR_MAP(UNDERLINE), |
| 922 | }; |
| 923 | |
| 924 | #define set_attribute(attr, name) \ |
| 925 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) |
| 926 | |
| 927 | static int config_lineno; |
| 928 | static bool config_errors; |
| 929 | static char *config_msg; |
| 930 | |
| 931 | /* Wants: object fgcolor bgcolor [attr] */ |
| 932 | static int |
| 933 | option_color_command(int argc, char *argv[]) |
| 934 | { |
| 935 | struct line_info *info; |
| 936 | |
| 937 | if (argc != 3 && argc != 4) { |
| 938 | config_msg = "Wrong number of arguments given to color command"; |
| 939 | return ERR; |
| 940 | } |
| 941 | |
| 942 | info = get_line_info(argv[0], strlen(argv[0])); |
| 943 | if (!info) { |
| 944 | config_msg = "Unknown color name"; |
| 945 | return ERR; |
| 946 | } |
| 947 | |
| 948 | if (set_color(&info->fg, argv[1]) == ERR || |
| 949 | set_color(&info->bg, argv[2]) == ERR) { |
| 950 | config_msg = "Unknown color"; |
| 951 | return ERR; |
| 952 | } |
| 953 | |
| 954 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
| 955 | config_msg = "Unknown attribute"; |
| 956 | return ERR; |
| 957 | } |
| 958 | |
| 959 | return OK; |
| 960 | } |
| 961 | |
| 962 | /* Wants: name = value */ |
| 963 | static int |
| 964 | option_set_command(int argc, char *argv[]) |
| 965 | { |
| 966 | if (argc != 3) { |
| 967 | config_msg = "Wrong number of arguments given to set command"; |
| 968 | return ERR; |
| 969 | } |
| 970 | |
| 971 | if (strcmp(argv[1], "=")) { |
| 972 | config_msg = "No value assigned"; |
| 973 | return ERR; |
| 974 | } |
| 975 | |
| 976 | if (!strcmp(argv[0], "show-rev-graph")) { |
| 977 | opt_rev_graph = (!strcmp(argv[2], "1") || |
| 978 | !strcmp(argv[2], "true") || |
| 979 | !strcmp(argv[2], "yes")); |
| 980 | return OK; |
| 981 | } |
| 982 | |
| 983 | if (!strcmp(argv[0], "line-number-interval")) { |
| 984 | opt_num_interval = atoi(argv[2]); |
| 985 | return OK; |
| 986 | } |
| 987 | |
| 988 | if (!strcmp(argv[0], "tab-size")) { |
| 989 | opt_tab_size = atoi(argv[2]); |
| 990 | return OK; |
| 991 | } |
| 992 | |
| 993 | if (!strcmp(argv[0], "commit-encoding")) { |
| 994 | char *arg = argv[2]; |
| 995 | int delimiter = *arg; |
| 996 | int i; |
| 997 | |
| 998 | switch (delimiter) { |
| 999 | case '"': |
| 1000 | case '\'': |
| 1001 | for (arg++, i = 0; arg[i]; i++) |
| 1002 | if (arg[i] == delimiter) { |
| 1003 | arg[i] = 0; |
| 1004 | break; |
| 1005 | } |
| 1006 | default: |
| 1007 | string_copy(opt_encoding, arg); |
| 1008 | return OK; |
| 1009 | } |
| 1010 | } |
| 1011 | |
| 1012 | config_msg = "Unknown variable name"; |
| 1013 | return ERR; |
| 1014 | } |
| 1015 | |
| 1016 | /* Wants: mode request key */ |
| 1017 | static int |
| 1018 | option_bind_command(int argc, char *argv[]) |
| 1019 | { |
| 1020 | enum request request; |
| 1021 | int keymap; |
| 1022 | int key; |
| 1023 | |
| 1024 | if (argc != 3) { |
| 1025 | config_msg = "Wrong number of arguments given to bind command"; |
| 1026 | return ERR; |
| 1027 | } |
| 1028 | |
| 1029 | if (set_keymap(&keymap, argv[0]) == ERR) { |
| 1030 | config_msg = "Unknown key map"; |
| 1031 | return ERR; |
| 1032 | } |
| 1033 | |
| 1034 | key = get_key_value(argv[1]); |
| 1035 | if (key == ERR) { |
| 1036 | config_msg = "Unknown key"; |
| 1037 | return ERR; |
| 1038 | } |
| 1039 | |
| 1040 | request = get_request(argv[2]); |
| 1041 | if (request == REQ_UNKNOWN) { |
| 1042 | config_msg = "Unknown request name"; |
| 1043 | return ERR; |
| 1044 | } |
| 1045 | |
| 1046 | add_keybinding(keymap, request, key); |
| 1047 | |
| 1048 | return OK; |
| 1049 | } |
| 1050 | |
| 1051 | static int |
| 1052 | set_option(char *opt, char *value) |
| 1053 | { |
| 1054 | char *argv[16]; |
| 1055 | int valuelen; |
| 1056 | int argc = 0; |
| 1057 | |
| 1058 | /* Tokenize */ |
| 1059 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { |
| 1060 | argv[argc++] = value; |
| 1061 | |
| 1062 | value += valuelen; |
| 1063 | if (!*value) |
| 1064 | break; |
| 1065 | |
| 1066 | *value++ = 0; |
| 1067 | while (isspace(*value)) |
| 1068 | value++; |
| 1069 | } |
| 1070 | |
| 1071 | if (!strcmp(opt, "color")) |
| 1072 | return option_color_command(argc, argv); |
| 1073 | |
| 1074 | if (!strcmp(opt, "set")) |
| 1075 | return option_set_command(argc, argv); |
| 1076 | |
| 1077 | if (!strcmp(opt, "bind")) |
| 1078 | return option_bind_command(argc, argv); |
| 1079 | |
| 1080 | config_msg = "Unknown option command"; |
| 1081 | return ERR; |
| 1082 | } |
| 1083 | |
| 1084 | static int |
| 1085 | read_option(char *opt, int optlen, char *value, int valuelen) |
| 1086 | { |
| 1087 | int status = OK; |
| 1088 | |
| 1089 | config_lineno++; |
| 1090 | config_msg = "Internal error"; |
| 1091 | |
| 1092 | /* Check for comment markers, since read_properties() will |
| 1093 | * only ensure opt and value are split at first " \t". */ |
| 1094 | optlen = strcspn(opt, "#"); |
| 1095 | if (optlen == 0) |
| 1096 | return OK; |
| 1097 | |
| 1098 | if (opt[optlen] != 0) { |
| 1099 | config_msg = "No option value"; |
| 1100 | status = ERR; |
| 1101 | |
| 1102 | } else { |
| 1103 | /* Look for comment endings in the value. */ |
| 1104 | int len = strcspn(value, "#"); |
| 1105 | |
| 1106 | if (len < valuelen) { |
| 1107 | valuelen = len; |
| 1108 | value[valuelen] = 0; |
| 1109 | } |
| 1110 | |
| 1111 | status = set_option(opt, value); |
| 1112 | } |
| 1113 | |
| 1114 | if (status == ERR) { |
| 1115 | fprintf(stderr, "Error on line %d, near '%.*s': %s\n", |
| 1116 | config_lineno, optlen, opt, config_msg); |
| 1117 | config_errors = TRUE; |
| 1118 | } |
| 1119 | |
| 1120 | /* Always keep going if errors are encountered. */ |
| 1121 | return OK; |
| 1122 | } |
| 1123 | |
| 1124 | static int |
| 1125 | load_options(void) |
| 1126 | { |
| 1127 | char *home = getenv("HOME"); |
| 1128 | char buf[SIZEOF_STR]; |
| 1129 | FILE *file; |
| 1130 | |
| 1131 | config_lineno = 0; |
| 1132 | config_errors = FALSE; |
| 1133 | |
| 1134 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
| 1135 | return ERR; |
| 1136 | |
| 1137 | /* It's ok that the file doesn't exist. */ |
| 1138 | file = fopen(buf, "r"); |
| 1139 | if (!file) |
| 1140 | return OK; |
| 1141 | |
| 1142 | if (read_properties(file, " \t", read_option) == ERR || |
| 1143 | config_errors == TRUE) |
| 1144 | fprintf(stderr, "Errors while loading %s.\n", buf); |
| 1145 | |
| 1146 | return OK; |
| 1147 | } |
| 1148 | |
| 1149 | |
| 1150 | /* |
| 1151 | * The viewer |
| 1152 | */ |
| 1153 | |
| 1154 | struct view; |
| 1155 | struct view_ops; |
| 1156 | |
| 1157 | /* The display array of active views and the index of the current view. */ |
| 1158 | static struct view *display[2]; |
| 1159 | static unsigned int current_view; |
| 1160 | |
| 1161 | #define foreach_displayed_view(view, i) \ |
| 1162 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) |
| 1163 | |
| 1164 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
| 1165 | |
| 1166 | /* Current head and commit ID */ |
| 1167 | static char ref_blob[SIZEOF_REF] = ""; |
| 1168 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
| 1169 | static char ref_head[SIZEOF_REF] = "HEAD"; |
| 1170 | |
| 1171 | struct view { |
| 1172 | const char *name; /* View name */ |
| 1173 | const char *cmd_fmt; /* Default command line format */ |
| 1174 | const char *cmd_env; /* Command line set via environment */ |
| 1175 | const char *id; /* Points to either of ref_{head,commit,blob} */ |
| 1176 | |
| 1177 | struct view_ops *ops; /* View operations */ |
| 1178 | |
| 1179 | enum keymap keymap; /* What keymap does this view have */ |
| 1180 | |
| 1181 | char cmd[SIZEOF_STR]; /* Command buffer */ |
| 1182 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
| 1183 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ |
| 1184 | |
| 1185 | int height, width; /* The width and height of the main window */ |
| 1186 | WINDOW *win; /* The main window */ |
| 1187 | WINDOW *title; /* The title window living below the main window */ |
| 1188 | |
| 1189 | /* Navigation */ |
| 1190 | unsigned long offset; /* Offset of the window top */ |
| 1191 | unsigned long lineno; /* Current line number */ |
| 1192 | |
| 1193 | /* Searching */ |
| 1194 | char grep[SIZEOF_STR]; /* Search string */ |
| 1195 | regex_t *regex; /* Pre-compiled regex */ |
| 1196 | |
| 1197 | /* If non-NULL, points to the view that opened this view. If this view |
| 1198 | * is closed tig will switch back to the parent view. */ |
| 1199 | struct view *parent; |
| 1200 | |
| 1201 | /* Buffering */ |
| 1202 | unsigned long lines; /* Total number of lines */ |
| 1203 | struct line *line; /* Line index */ |
| 1204 | unsigned long line_size;/* Total number of allocated lines */ |
| 1205 | unsigned int digits; /* Number of digits in the lines member. */ |
| 1206 | |
| 1207 | /* Loading */ |
| 1208 | FILE *pipe; |
| 1209 | time_t start_time; |
| 1210 | }; |
| 1211 | |
| 1212 | struct view_ops { |
| 1213 | /* What type of content being displayed. Used in the title bar. */ |
| 1214 | const char *type; |
| 1215 | /* Draw one line; @lineno must be < view->height. */ |
| 1216 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno); |
| 1217 | /* Read one line; updates view->line. */ |
| 1218 | bool (*read)(struct view *view, char *data); |
| 1219 | /* Depending on view, change display based on current line. */ |
| 1220 | bool (*enter)(struct view *view, struct line *line); |
| 1221 | /* Search for regex in a line. */ |
| 1222 | bool (*grep)(struct view *view, struct line *line); |
| 1223 | }; |
| 1224 | |
| 1225 | static struct view_ops pager_ops; |
| 1226 | static struct view_ops main_ops; |
| 1227 | static struct view_ops tree_ops; |
| 1228 | static struct view_ops blob_ops; |
| 1229 | |
| 1230 | #define VIEW_STR(name, cmd, env, ref, ops, map) \ |
| 1231 | { name, cmd, #env, ref, ops, map} |
| 1232 | |
| 1233 | #define VIEW_(id, name, ops, ref) \ |
| 1234 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id) |
| 1235 | |
| 1236 | |
| 1237 | static struct view views[] = { |
| 1238 | VIEW_(MAIN, "main", &main_ops, ref_head), |
| 1239 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), |
| 1240 | VIEW_(LOG, "log", &pager_ops, ref_head), |
| 1241 | VIEW_(TREE, "tree", &tree_ops, ref_commit), |
| 1242 | VIEW_(BLOB, "blob", &blob_ops, ref_blob), |
| 1243 | VIEW_(HELP, "help", &pager_ops, "static"), |
| 1244 | VIEW_(PAGER, "pager", &pager_ops, "static"), |
| 1245 | }; |
| 1246 | |
| 1247 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
| 1248 | |
| 1249 | #define foreach_view(view, i) \ |
| 1250 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
| 1251 | |
| 1252 | #define view_is_displayed(view) \ |
| 1253 | (view == display[0] || view == display[1]) |
| 1254 | |
| 1255 | static bool |
| 1256 | draw_view_line(struct view *view, unsigned int lineno) |
| 1257 | { |
| 1258 | assert(view_is_displayed(view)); |
| 1259 | |
| 1260 | if (view->offset + lineno >= view->lines) |
| 1261 | return FALSE; |
| 1262 | |
| 1263 | return view->ops->draw(view, &view->line[view->offset + lineno], lineno); |
| 1264 | } |
| 1265 | |
| 1266 | static void |
| 1267 | redraw_view_from(struct view *view, int lineno) |
| 1268 | { |
| 1269 | assert(0 <= lineno && lineno < view->height); |
| 1270 | |
| 1271 | for (; lineno < view->height; lineno++) { |
| 1272 | if (!draw_view_line(view, lineno)) |
| 1273 | break; |
| 1274 | } |
| 1275 | |
| 1276 | redrawwin(view->win); |
| 1277 | wrefresh(view->win); |
| 1278 | } |
| 1279 | |
| 1280 | static void |
| 1281 | redraw_view(struct view *view) |
| 1282 | { |
| 1283 | wclear(view->win); |
| 1284 | redraw_view_from(view, 0); |
| 1285 | } |
| 1286 | |
| 1287 | |
| 1288 | static void |
| 1289 | update_view_title(struct view *view) |
| 1290 | { |
| 1291 | assert(view_is_displayed(view)); |
| 1292 | |
| 1293 | if (view == display[current_view]) |
| 1294 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); |
| 1295 | else |
| 1296 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); |
| 1297 | |
| 1298 | werase(view->title); |
| 1299 | wmove(view->title, 0, 0); |
| 1300 | |
| 1301 | if (*view->ref) |
| 1302 | wprintw(view->title, "[%s] %s", view->name, view->ref); |
| 1303 | else |
| 1304 | wprintw(view->title, "[%s]", view->name); |
| 1305 | |
| 1306 | if (view->lines || view->pipe) { |
| 1307 | unsigned int view_lines = view->offset + view->height; |
| 1308 | unsigned int lines = view->lines |
| 1309 | ? MIN(view_lines, view->lines) * 100 / view->lines |
| 1310 | : 0; |
| 1311 | |
| 1312 | wprintw(view->title, " - %s %d of %d (%d%%)", |
| 1313 | view->ops->type, |
| 1314 | view->lineno + 1, |
| 1315 | view->lines, |
| 1316 | lines); |
| 1317 | } |
| 1318 | |
| 1319 | if (view->pipe) { |
| 1320 | time_t secs = time(NULL) - view->start_time; |
| 1321 | |
| 1322 | /* Three git seconds are a long time ... */ |
| 1323 | if (secs > 2) |
| 1324 | wprintw(view->title, " %lds", secs); |
| 1325 | } |
| 1326 | |
| 1327 | wmove(view->title, 0, view->width - 1); |
| 1328 | wrefresh(view->title); |
| 1329 | } |
| 1330 | |
| 1331 | static void |
| 1332 | resize_display(void) |
| 1333 | { |
| 1334 | int offset, i; |
| 1335 | struct view *base = display[0]; |
| 1336 | struct view *view = display[1] ? display[1] : display[0]; |
| 1337 | |
| 1338 | /* Setup window dimensions */ |
| 1339 | |
| 1340 | getmaxyx(stdscr, base->height, base->width); |
| 1341 | |
| 1342 | /* Make room for the status window. */ |
| 1343 | base->height -= 1; |
| 1344 | |
| 1345 | if (view != base) { |
| 1346 | /* Horizontal split. */ |
| 1347 | view->width = base->width; |
| 1348 | view->height = SCALE_SPLIT_VIEW(base->height); |
| 1349 | base->height -= view->height; |
| 1350 | |
| 1351 | /* Make room for the title bar. */ |
| 1352 | view->height -= 1; |
| 1353 | } |
| 1354 | |
| 1355 | /* Make room for the title bar. */ |
| 1356 | base->height -= 1; |
| 1357 | |
| 1358 | offset = 0; |
| 1359 | |
| 1360 | foreach_displayed_view (view, i) { |
| 1361 | if (!view->win) { |
| 1362 | view->win = newwin(view->height, 0, offset, 0); |
| 1363 | if (!view->win) |
| 1364 | die("Failed to create %s view", view->name); |
| 1365 | |
| 1366 | scrollok(view->win, TRUE); |
| 1367 | |
| 1368 | view->title = newwin(1, 0, offset + view->height, 0); |
| 1369 | if (!view->title) |
| 1370 | die("Failed to create title window"); |
| 1371 | |
| 1372 | } else { |
| 1373 | wresize(view->win, view->height, view->width); |
| 1374 | mvwin(view->win, offset, 0); |
| 1375 | mvwin(view->title, offset + view->height, 0); |
| 1376 | } |
| 1377 | |
| 1378 | offset += view->height + 1; |
| 1379 | } |
| 1380 | } |
| 1381 | |
| 1382 | static void |
| 1383 | redraw_display(void) |
| 1384 | { |
| 1385 | struct view *view; |
| 1386 | int i; |
| 1387 | |
| 1388 | foreach_displayed_view (view, i) { |
| 1389 | redraw_view(view); |
| 1390 | update_view_title(view); |
| 1391 | } |
| 1392 | } |
| 1393 | |
| 1394 | static void |
| 1395 | update_display_cursor(void) |
| 1396 | { |
| 1397 | struct view *view = display[current_view]; |
| 1398 | |
| 1399 | /* Move the cursor to the right-most column of the cursor line. |
| 1400 | * |
| 1401 | * XXX: This could turn out to be a bit expensive, but it ensures that |
| 1402 | * the cursor does not jump around. */ |
| 1403 | if (view->lines) { |
| 1404 | wmove(view->win, view->lineno - view->offset, view->width - 1); |
| 1405 | wrefresh(view->win); |
| 1406 | } |
| 1407 | } |
| 1408 | |
| 1409 | /* |
| 1410 | * Navigation |
| 1411 | */ |
| 1412 | |
| 1413 | /* Scrolling backend */ |
| 1414 | static void |
| 1415 | do_scroll_view(struct view *view, int lines, bool redraw) |
| 1416 | { |
| 1417 | assert(view_is_displayed(view)); |
| 1418 | |
| 1419 | /* The rendering expects the new offset. */ |
| 1420 | view->offset += lines; |
| 1421 | |
| 1422 | assert(0 <= view->offset && view->offset < view->lines); |
| 1423 | assert(lines); |
| 1424 | |
| 1425 | /* Redraw the whole screen if scrolling is pointless. */ |
| 1426 | if (view->height < ABS(lines)) { |
| 1427 | redraw_view(view); |
| 1428 | |
| 1429 | } else { |
| 1430 | int line = lines > 0 ? view->height - lines : 0; |
| 1431 | int end = line + ABS(lines); |
| 1432 | |
| 1433 | wscrl(view->win, lines); |
| 1434 | |
| 1435 | for (; line < end; line++) { |
| 1436 | if (!draw_view_line(view, line)) |
| 1437 | break; |
| 1438 | } |
| 1439 | } |
| 1440 | |
| 1441 | /* Move current line into the view. */ |
| 1442 | if (view->lineno < view->offset) { |
| 1443 | view->lineno = view->offset; |
| 1444 | draw_view_line(view, 0); |
| 1445 | |
| 1446 | } else if (view->lineno >= view->offset + view->height) { |
| 1447 | if (view->lineno == view->offset + view->height) { |
| 1448 | /* Clear the hidden line so it doesn't show if the view |
| 1449 | * is scrolled up. */ |
| 1450 | wmove(view->win, view->height, 0); |
| 1451 | wclrtoeol(view->win); |
| 1452 | } |
| 1453 | view->lineno = view->offset + view->height - 1; |
| 1454 | draw_view_line(view, view->lineno - view->offset); |
| 1455 | } |
| 1456 | |
| 1457 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
| 1458 | |
| 1459 | if (!redraw) |
| 1460 | return; |
| 1461 | |
| 1462 | redrawwin(view->win); |
| 1463 | wrefresh(view->win); |
| 1464 | report(""); |
| 1465 | } |
| 1466 | |
| 1467 | /* Scroll frontend */ |
| 1468 | static void |
| 1469 | scroll_view(struct view *view, enum request request) |
| 1470 | { |
| 1471 | int lines = 1; |
| 1472 | |
| 1473 | switch (request) { |
| 1474 | case REQ_SCROLL_PAGE_DOWN: |
| 1475 | lines = view->height; |
| 1476 | case REQ_SCROLL_LINE_DOWN: |
| 1477 | if (view->offset + lines > view->lines) |
| 1478 | lines = view->lines - view->offset; |
| 1479 | |
| 1480 | if (lines == 0 || view->offset + view->height >= view->lines) { |
| 1481 | report("Cannot scroll beyond the last line"); |
| 1482 | return; |
| 1483 | } |
| 1484 | break; |
| 1485 | |
| 1486 | case REQ_SCROLL_PAGE_UP: |
| 1487 | lines = view->height; |
| 1488 | case REQ_SCROLL_LINE_UP: |
| 1489 | if (lines > view->offset) |
| 1490 | lines = view->offset; |
| 1491 | |
| 1492 | if (lines == 0) { |
| 1493 | report("Cannot scroll beyond the first line"); |
| 1494 | return; |
| 1495 | } |
| 1496 | |
| 1497 | lines = -lines; |
| 1498 | break; |
| 1499 | |
| 1500 | default: |
| 1501 | die("request %d not handled in switch", request); |
| 1502 | } |
| 1503 | |
| 1504 | do_scroll_view(view, lines, TRUE); |
| 1505 | } |
| 1506 | |
| 1507 | /* Cursor moving */ |
| 1508 | static void |
| 1509 | move_view(struct view *view, enum request request, bool redraw) |
| 1510 | { |
| 1511 | int steps; |
| 1512 | |
| 1513 | switch (request) { |
| 1514 | case REQ_MOVE_FIRST_LINE: |
| 1515 | steps = -view->lineno; |
| 1516 | break; |
| 1517 | |
| 1518 | case REQ_MOVE_LAST_LINE: |
| 1519 | steps = view->lines - view->lineno - 1; |
| 1520 | break; |
| 1521 | |
| 1522 | case REQ_MOVE_PAGE_UP: |
| 1523 | steps = view->height > view->lineno |
| 1524 | ? -view->lineno : -view->height; |
| 1525 | break; |
| 1526 | |
| 1527 | case REQ_MOVE_PAGE_DOWN: |
| 1528 | steps = view->lineno + view->height >= view->lines |
| 1529 | ? view->lines - view->lineno - 1 : view->height; |
| 1530 | break; |
| 1531 | |
| 1532 | case REQ_MOVE_UP: |
| 1533 | steps = -1; |
| 1534 | break; |
| 1535 | |
| 1536 | case REQ_MOVE_DOWN: |
| 1537 | steps = 1; |
| 1538 | break; |
| 1539 | |
| 1540 | default: |
| 1541 | die("request %d not handled in switch", request); |
| 1542 | } |
| 1543 | |
| 1544 | if (steps <= 0 && view->lineno == 0) { |
| 1545 | report("Cannot move beyond the first line"); |
| 1546 | return; |
| 1547 | |
| 1548 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
| 1549 | report("Cannot move beyond the last line"); |
| 1550 | return; |
| 1551 | } |
| 1552 | |
| 1553 | /* Move the current line */ |
| 1554 | view->lineno += steps; |
| 1555 | assert(0 <= view->lineno && view->lineno < view->lines); |
| 1556 | |
| 1557 | /* Repaint the old "current" line if we be scrolling */ |
| 1558 | if (ABS(steps) < view->height) { |
| 1559 | int prev_lineno = view->lineno - steps - view->offset; |
| 1560 | |
| 1561 | wmove(view->win, prev_lineno, 0); |
| 1562 | wclrtoeol(view->win); |
| 1563 | draw_view_line(view, prev_lineno); |
| 1564 | } |
| 1565 | |
| 1566 | /* Check whether the view needs to be scrolled */ |
| 1567 | if (view->lineno < view->offset || |
| 1568 | view->lineno >= view->offset + view->height) { |
| 1569 | if (steps < 0 && -steps > view->offset) { |
| 1570 | steps = -view->offset; |
| 1571 | |
| 1572 | } else if (steps > 0) { |
| 1573 | if (view->lineno == view->lines - 1 && |
| 1574 | view->lines > view->height) { |
| 1575 | steps = view->lines - view->offset - 1; |
| 1576 | if (steps >= view->height) |
| 1577 | steps -= view->height - 1; |
| 1578 | } |
| 1579 | } |
| 1580 | |
| 1581 | do_scroll_view(view, steps, redraw); |
| 1582 | return; |
| 1583 | } |
| 1584 | |
| 1585 | /* Draw the current line */ |
| 1586 | draw_view_line(view, view->lineno - view->offset); |
| 1587 | |
| 1588 | if (!redraw) |
| 1589 | return; |
| 1590 | |
| 1591 | redrawwin(view->win); |
| 1592 | wrefresh(view->win); |
| 1593 | report(""); |
| 1594 | } |
| 1595 | |
| 1596 | |
| 1597 | /* |
| 1598 | * Searching |
| 1599 | */ |
| 1600 | |
| 1601 | static void search_view(struct view *view, enum request request, const char *search); |
| 1602 | |
| 1603 | static bool |
| 1604 | find_next_line(struct view *view, unsigned long lineno, struct line *line) |
| 1605 | { |
| 1606 | assert(view_is_displayed(view)); |
| 1607 | |
| 1608 | if (!view->ops->grep(view, line)) |
| 1609 | return FALSE; |
| 1610 | |
| 1611 | if (lineno - view->offset >= view->height) { |
| 1612 | view->offset = lineno; |
| 1613 | view->lineno = lineno; |
| 1614 | redraw_view(view); |
| 1615 | |
| 1616 | } else { |
| 1617 | unsigned long old_lineno = view->lineno - view->offset; |
| 1618 | |
| 1619 | view->lineno = lineno; |
| 1620 | |
| 1621 | wmove(view->win, old_lineno, 0); |
| 1622 | wclrtoeol(view->win); |
| 1623 | draw_view_line(view, old_lineno); |
| 1624 | |
| 1625 | draw_view_line(view, view->lineno - view->offset); |
| 1626 | redrawwin(view->win); |
| 1627 | wrefresh(view->win); |
| 1628 | } |
| 1629 | |
| 1630 | report("Line %ld matches '%s'", lineno + 1, view->grep); |
| 1631 | return TRUE; |
| 1632 | } |
| 1633 | |
| 1634 | static void |
| 1635 | find_next(struct view *view, enum request request) |
| 1636 | { |
| 1637 | unsigned long lineno = view->lineno; |
| 1638 | int direction; |
| 1639 | |
| 1640 | if (!*view->grep) { |
| 1641 | if (!*opt_search) |
| 1642 | report("No previous search"); |
| 1643 | else |
| 1644 | search_view(view, request, opt_search); |
| 1645 | return; |
| 1646 | } |
| 1647 | |
| 1648 | switch (request) { |
| 1649 | case REQ_SEARCH: |
| 1650 | case REQ_FIND_NEXT: |
| 1651 | direction = 1; |
| 1652 | break; |
| 1653 | |
| 1654 | case REQ_SEARCH_BACK: |
| 1655 | case REQ_FIND_PREV: |
| 1656 | direction = -1; |
| 1657 | break; |
| 1658 | |
| 1659 | default: |
| 1660 | return; |
| 1661 | } |
| 1662 | |
| 1663 | if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV) |
| 1664 | lineno += direction; |
| 1665 | |
| 1666 | /* Note, lineno is unsigned long so will wrap around in which case it |
| 1667 | * will become bigger than view->lines. */ |
| 1668 | for (; lineno < view->lines; lineno += direction) { |
| 1669 | struct line *line = &view->line[lineno]; |
| 1670 | |
| 1671 | if (find_next_line(view, lineno, line)) |
| 1672 | return; |
| 1673 | } |
| 1674 | |
| 1675 | report("No match found for '%s'", view->grep); |
| 1676 | } |
| 1677 | |
| 1678 | static void |
| 1679 | search_view(struct view *view, enum request request, const char *search) |
| 1680 | { |
| 1681 | int regex_err; |
| 1682 | |
| 1683 | if (view->regex) { |
| 1684 | regfree(view->regex); |
| 1685 | *view->grep = 0; |
| 1686 | } else { |
| 1687 | view->regex = calloc(1, sizeof(*view->regex)); |
| 1688 | if (!view->regex) |
| 1689 | return; |
| 1690 | } |
| 1691 | |
| 1692 | regex_err = regcomp(view->regex, search, REG_EXTENDED); |
| 1693 | if (regex_err != 0) { |
| 1694 | char buf[SIZEOF_STR] = "unknown error"; |
| 1695 | |
| 1696 | regerror(regex_err, view->regex, buf, sizeof(buf)); |
| 1697 | report("Search failed: %s", buf); |
| 1698 | return; |
| 1699 | } |
| 1700 | |
| 1701 | string_copy(view->grep, search); |
| 1702 | |
| 1703 | find_next(view, request); |
| 1704 | } |
| 1705 | |
| 1706 | /* |
| 1707 | * Incremental updating |
| 1708 | */ |
| 1709 | |
| 1710 | static void |
| 1711 | end_update(struct view *view) |
| 1712 | { |
| 1713 | if (!view->pipe) |
| 1714 | return; |
| 1715 | set_nonblocking_input(FALSE); |
| 1716 | if (view->pipe == stdin) |
| 1717 | fclose(view->pipe); |
| 1718 | else |
| 1719 | pclose(view->pipe); |
| 1720 | view->pipe = NULL; |
| 1721 | } |
| 1722 | |
| 1723 | static bool |
| 1724 | begin_update(struct view *view) |
| 1725 | { |
| 1726 | const char *id = view->id; |
| 1727 | |
| 1728 | if (view->pipe) |
| 1729 | end_update(view); |
| 1730 | |
| 1731 | if (opt_cmd[0]) { |
| 1732 | string_copy(view->cmd, opt_cmd); |
| 1733 | opt_cmd[0] = 0; |
| 1734 | /* When running random commands, the view ref could have become |
| 1735 | * invalid so clear it. */ |
| 1736 | view->ref[0] = 0; |
| 1737 | |
| 1738 | } else if (view == VIEW(REQ_VIEW_TREE)) { |
| 1739 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
| 1740 | |
| 1741 | if (strcmp(view->vid, view->id)) |
| 1742 | opt_path[0] = 0; |
| 1743 | |
| 1744 | if (!string_format(view->cmd, format, id, opt_path)) |
| 1745 | return FALSE; |
| 1746 | |
| 1747 | } else { |
| 1748 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
| 1749 | |
| 1750 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
| 1751 | return FALSE; |
| 1752 | } |
| 1753 | |
| 1754 | /* Special case for the pager view. */ |
| 1755 | if (opt_pipe) { |
| 1756 | view->pipe = opt_pipe; |
| 1757 | opt_pipe = NULL; |
| 1758 | } else { |
| 1759 | view->pipe = popen(view->cmd, "r"); |
| 1760 | } |
| 1761 | |
| 1762 | if (!view->pipe) |
| 1763 | return FALSE; |
| 1764 | |
| 1765 | set_nonblocking_input(TRUE); |
| 1766 | |
| 1767 | view->offset = 0; |
| 1768 | view->lines = 0; |
| 1769 | view->lineno = 0; |
| 1770 | string_copy(view->vid, id); |
| 1771 | |
| 1772 | if (view->line) { |
| 1773 | int i; |
| 1774 | |
| 1775 | for (i = 0; i < view->lines; i++) |
| 1776 | if (view->line[i].data) |
| 1777 | free(view->line[i].data); |
| 1778 | |
| 1779 | free(view->line); |
| 1780 | view->line = NULL; |
| 1781 | } |
| 1782 | |
| 1783 | view->start_time = time(NULL); |
| 1784 | |
| 1785 | return TRUE; |
| 1786 | } |
| 1787 | |
| 1788 | static struct line * |
| 1789 | realloc_lines(struct view *view, size_t line_size) |
| 1790 | { |
| 1791 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); |
| 1792 | |
| 1793 | if (!tmp) |
| 1794 | return NULL; |
| 1795 | |
| 1796 | view->line = tmp; |
| 1797 | view->line_size = line_size; |
| 1798 | return view->line; |
| 1799 | } |
| 1800 | |
| 1801 | static bool |
| 1802 | update_view(struct view *view) |
| 1803 | { |
| 1804 | char in_buffer[BUFSIZ]; |
| 1805 | char out_buffer[BUFSIZ * 2]; |
| 1806 | char *line; |
| 1807 | /* The number of lines to read. If too low it will cause too much |
| 1808 | * redrawing (and possible flickering), if too high responsiveness |
| 1809 | * will suffer. */ |
| 1810 | unsigned long lines = view->height; |
| 1811 | int redraw_from = -1; |
| 1812 | |
| 1813 | if (!view->pipe) |
| 1814 | return TRUE; |
| 1815 | |
| 1816 | /* Only redraw if lines are visible. */ |
| 1817 | if (view->offset + view->height >= view->lines) |
| 1818 | redraw_from = view->lines - view->offset; |
| 1819 | |
| 1820 | /* FIXME: This is probably not perfect for backgrounded views. */ |
| 1821 | if (!realloc_lines(view, view->lines + lines)) |
| 1822 | goto alloc_error; |
| 1823 | |
| 1824 | while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) { |
| 1825 | size_t linelen = strlen(line); |
| 1826 | |
| 1827 | if (linelen) |
| 1828 | line[linelen - 1] = 0; |
| 1829 | |
| 1830 | if (opt_iconv != ICONV_NONE) { |
| 1831 | char *inbuf = line; |
| 1832 | size_t inlen = linelen; |
| 1833 | |
| 1834 | char *outbuf = out_buffer; |
| 1835 | size_t outlen = sizeof(out_buffer); |
| 1836 | |
| 1837 | size_t ret; |
| 1838 | |
| 1839 | ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen); |
| 1840 | if (ret != (size_t) -1) { |
| 1841 | line = out_buffer; |
| 1842 | linelen = strlen(out_buffer); |
| 1843 | } |
| 1844 | } |
| 1845 | |
| 1846 | if (!view->ops->read(view, line)) |
| 1847 | goto alloc_error; |
| 1848 | |
| 1849 | if (lines-- == 1) |
| 1850 | break; |
| 1851 | } |
| 1852 | |
| 1853 | { |
| 1854 | int digits; |
| 1855 | |
| 1856 | lines = view->lines; |
| 1857 | for (digits = 0; lines; digits++) |
| 1858 | lines /= 10; |
| 1859 | |
| 1860 | /* Keep the displayed view in sync with line number scaling. */ |
| 1861 | if (digits != view->digits) { |
| 1862 | view->digits = digits; |
| 1863 | redraw_from = 0; |
| 1864 | } |
| 1865 | } |
| 1866 | |
| 1867 | if (!view_is_displayed(view)) |
| 1868 | goto check_pipe; |
| 1869 | |
| 1870 | if (view == VIEW(REQ_VIEW_TREE)) { |
| 1871 | /* Clear the view and redraw everything since the tree sorting |
| 1872 | * might have rearranged things. */ |
| 1873 | redraw_view(view); |
| 1874 | |
| 1875 | } else if (redraw_from >= 0) { |
| 1876 | /* If this is an incremental update, redraw the previous line |
| 1877 | * since for commits some members could have changed when |
| 1878 | * loading the main view. */ |
| 1879 | if (redraw_from > 0) |
| 1880 | redraw_from--; |
| 1881 | |
| 1882 | /* Incrementally draw avoids flickering. */ |
| 1883 | redraw_view_from(view, redraw_from); |
| 1884 | } |
| 1885 | |
| 1886 | /* Update the title _after_ the redraw so that if the redraw picks up a |
| 1887 | * commit reference in view->ref it'll be available here. */ |
| 1888 | update_view_title(view); |
| 1889 | |
| 1890 | check_pipe: |
| 1891 | if (ferror(view->pipe)) { |
| 1892 | report("Failed to read: %s", strerror(errno)); |
| 1893 | goto end; |
| 1894 | |
| 1895 | } else if (feof(view->pipe)) { |
| 1896 | report(""); |
| 1897 | goto end; |
| 1898 | } |
| 1899 | |
| 1900 | return TRUE; |
| 1901 | |
| 1902 | alloc_error: |
| 1903 | report("Allocation failure"); |
| 1904 | |
| 1905 | end: |
| 1906 | end_update(view); |
| 1907 | return FALSE; |
| 1908 | } |
| 1909 | |
| 1910 | |
| 1911 | /* |
| 1912 | * View opening |
| 1913 | */ |
| 1914 | |
| 1915 | static void open_help_view(struct view *view) |
| 1916 | { |
| 1917 | char buf[BUFSIZ]; |
| 1918 | int lines = ARRAY_SIZE(req_info) + 2; |
| 1919 | int i; |
| 1920 | |
| 1921 | if (view->lines > 0) |
| 1922 | return; |
| 1923 | |
| 1924 | for (i = 0; i < ARRAY_SIZE(req_info); i++) |
| 1925 | if (!req_info[i].request) |
| 1926 | lines++; |
| 1927 | |
| 1928 | view->line = calloc(lines, sizeof(*view->line)); |
| 1929 | if (!view->line) { |
| 1930 | report("Allocation failure"); |
| 1931 | return; |
| 1932 | } |
| 1933 | |
| 1934 | view->ops->read(view, "Quick reference for tig keybindings:"); |
| 1935 | |
| 1936 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { |
| 1937 | char *key; |
| 1938 | |
| 1939 | if (!req_info[i].request) { |
| 1940 | view->ops->read(view, ""); |
| 1941 | view->ops->read(view, req_info[i].help); |
| 1942 | continue; |
| 1943 | } |
| 1944 | |
| 1945 | key = get_key(req_info[i].request); |
| 1946 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) |
| 1947 | continue; |
| 1948 | |
| 1949 | view->ops->read(view, buf); |
| 1950 | } |
| 1951 | } |
| 1952 | |
| 1953 | enum open_flags { |
| 1954 | OPEN_DEFAULT = 0, /* Use default view switching. */ |
| 1955 | OPEN_SPLIT = 1, /* Split current view. */ |
| 1956 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ |
| 1957 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ |
| 1958 | }; |
| 1959 | |
| 1960 | static void |
| 1961 | open_view(struct view *prev, enum request request, enum open_flags flags) |
| 1962 | { |
| 1963 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
| 1964 | bool split = !!(flags & OPEN_SPLIT); |
| 1965 | bool reload = !!(flags & OPEN_RELOAD); |
| 1966 | struct view *view = VIEW(request); |
| 1967 | int nviews = displayed_views(); |
| 1968 | struct view *base_view = display[0]; |
| 1969 | |
| 1970 | if (view == prev && nviews == 1 && !reload) { |
| 1971 | report("Already in %s view", view->name); |
| 1972 | return; |
| 1973 | } |
| 1974 | |
| 1975 | if (view == VIEW(REQ_VIEW_HELP)) { |
| 1976 | open_help_view(view); |
| 1977 | |
| 1978 | } else if ((reload || strcmp(view->vid, view->id)) && |
| 1979 | !begin_update(view)) { |
| 1980 | report("Failed to load %s view", view->name); |
| 1981 | return; |
| 1982 | } |
| 1983 | |
| 1984 | if (split) { |
| 1985 | display[1] = view; |
| 1986 | if (!backgrounded) |
| 1987 | current_view = 1; |
| 1988 | } else { |
| 1989 | /* Maximize the current view. */ |
| 1990 | memset(display, 0, sizeof(display)); |
| 1991 | current_view = 0; |
| 1992 | display[current_view] = view; |
| 1993 | } |
| 1994 | |
| 1995 | /* Resize the view when switching between split- and full-screen, |
| 1996 | * or when switching between two different full-screen views. */ |
| 1997 | if (nviews != displayed_views() || |
| 1998 | (nviews == 1 && base_view != display[0])) |
| 1999 | resize_display(); |
| 2000 | |
| 2001 | if (split && prev->lineno - prev->offset >= prev->height) { |
| 2002 | /* Take the title line into account. */ |
| 2003 | int lines = prev->lineno - prev->offset - prev->height + 1; |
| 2004 | |
| 2005 | /* Scroll the view that was split if the current line is |
| 2006 | * outside the new limited view. */ |
| 2007 | do_scroll_view(prev, lines, TRUE); |
| 2008 | } |
| 2009 | |
| 2010 | if (prev && view != prev) { |
| 2011 | if (split && !backgrounded) { |
| 2012 | /* "Blur" the previous view. */ |
| 2013 | update_view_title(prev); |
| 2014 | } |
| 2015 | |
| 2016 | view->parent = prev; |
| 2017 | } |
| 2018 | |
| 2019 | if (view->pipe && view->lines == 0) { |
| 2020 | /* Clear the old view and let the incremental updating refill |
| 2021 | * the screen. */ |
| 2022 | wclear(view->win); |
| 2023 | report(""); |
| 2024 | } else { |
| 2025 | redraw_view(view); |
| 2026 | report(""); |
| 2027 | } |
| 2028 | |
| 2029 | /* If the view is backgrounded the above calls to report() |
| 2030 | * won't redraw the view title. */ |
| 2031 | if (backgrounded) |
| 2032 | update_view_title(view); |
| 2033 | } |
| 2034 | |
| 2035 | |
| 2036 | /* |
| 2037 | * User request switch noodle |
| 2038 | */ |
| 2039 | |
| 2040 | static int |
| 2041 | view_driver(struct view *view, enum request request) |
| 2042 | { |
| 2043 | int i; |
| 2044 | |
| 2045 | switch (request) { |
| 2046 | case REQ_MOVE_UP: |
| 2047 | case REQ_MOVE_DOWN: |
| 2048 | case REQ_MOVE_PAGE_UP: |
| 2049 | case REQ_MOVE_PAGE_DOWN: |
| 2050 | case REQ_MOVE_FIRST_LINE: |
| 2051 | case REQ_MOVE_LAST_LINE: |
| 2052 | move_view(view, request, TRUE); |
| 2053 | break; |
| 2054 | |
| 2055 | case REQ_SCROLL_LINE_DOWN: |
| 2056 | case REQ_SCROLL_LINE_UP: |
| 2057 | case REQ_SCROLL_PAGE_DOWN: |
| 2058 | case REQ_SCROLL_PAGE_UP: |
| 2059 | scroll_view(view, request); |
| 2060 | break; |
| 2061 | |
| 2062 | case REQ_VIEW_BLOB: |
| 2063 | if (!ref_blob[0]) { |
| 2064 | report("No file chosen, press 't' to open tree view"); |
| 2065 | break; |
| 2066 | } |
| 2067 | /* Fall-through */ |
| 2068 | case REQ_VIEW_MAIN: |
| 2069 | case REQ_VIEW_DIFF: |
| 2070 | case REQ_VIEW_LOG: |
| 2071 | case REQ_VIEW_TREE: |
| 2072 | case REQ_VIEW_HELP: |
| 2073 | case REQ_VIEW_PAGER: |
| 2074 | open_view(view, request, OPEN_DEFAULT); |
| 2075 | break; |
| 2076 | |
| 2077 | case REQ_NEXT: |
| 2078 | case REQ_PREVIOUS: |
| 2079 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; |
| 2080 | |
| 2081 | if ((view == VIEW(REQ_VIEW_DIFF) && |
| 2082 | view->parent == VIEW(REQ_VIEW_MAIN)) || |
| 2083 | (view == VIEW(REQ_VIEW_BLOB) && |
| 2084 | view->parent == VIEW(REQ_VIEW_TREE))) { |
| 2085 | bool redraw = display[1] == view; |
| 2086 | |
| 2087 | view = view->parent; |
| 2088 | move_view(view, request, redraw); |
| 2089 | if (redraw) |
| 2090 | update_view_title(view); |
| 2091 | } else { |
| 2092 | move_view(view, request, TRUE); |
| 2093 | break; |
| 2094 | } |
| 2095 | /* Fall-through */ |
| 2096 | |
| 2097 | case REQ_ENTER: |
| 2098 | if (!view->lines) { |
| 2099 | report("Nothing to enter"); |
| 2100 | break; |
| 2101 | } |
| 2102 | return view->ops->enter(view, &view->line[view->lineno]); |
| 2103 | |
| 2104 | case REQ_VIEW_NEXT: |
| 2105 | { |
| 2106 | int nviews = displayed_views(); |
| 2107 | int next_view = (current_view + 1) % nviews; |
| 2108 | |
| 2109 | if (next_view == current_view) { |
| 2110 | report("Only one view is displayed"); |
| 2111 | break; |
| 2112 | } |
| 2113 | |
| 2114 | current_view = next_view; |
| 2115 | /* Blur out the title of the previous view. */ |
| 2116 | update_view_title(view); |
| 2117 | report(""); |
| 2118 | break; |
| 2119 | } |
| 2120 | case REQ_TOGGLE_LINENO: |
| 2121 | opt_line_number = !opt_line_number; |
| 2122 | redraw_display(); |
| 2123 | break; |
| 2124 | |
| 2125 | case REQ_TOGGLE_REV_GRAPH: |
| 2126 | opt_rev_graph = !opt_rev_graph; |
| 2127 | redraw_display(); |
| 2128 | break; |
| 2129 | |
| 2130 | case REQ_PROMPT: |
| 2131 | /* Always reload^Wrerun commands from the prompt. */ |
| 2132 | open_view(view, opt_request, OPEN_RELOAD); |
| 2133 | break; |
| 2134 | |
| 2135 | case REQ_SEARCH: |
| 2136 | case REQ_SEARCH_BACK: |
| 2137 | search_view(view, request, opt_search); |
| 2138 | break; |
| 2139 | |
| 2140 | case REQ_FIND_NEXT: |
| 2141 | case REQ_FIND_PREV: |
| 2142 | find_next(view, request); |
| 2143 | break; |
| 2144 | |
| 2145 | case REQ_STOP_LOADING: |
| 2146 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
| 2147 | view = &views[i]; |
| 2148 | if (view->pipe) |
| 2149 | report("Stopped loading the %s view", view->name), |
| 2150 | end_update(view); |
| 2151 | } |
| 2152 | break; |
| 2153 | |
| 2154 | case REQ_SHOW_VERSION: |
| 2155 | report("%s (built %s)", VERSION, __DATE__); |
| 2156 | return TRUE; |
| 2157 | |
| 2158 | case REQ_SCREEN_RESIZE: |
| 2159 | resize_display(); |
| 2160 | /* Fall-through */ |
| 2161 | case REQ_SCREEN_REDRAW: |
| 2162 | redraw_display(); |
| 2163 | break; |
| 2164 | |
| 2165 | case REQ_NONE: |
| 2166 | doupdate(); |
| 2167 | return TRUE; |
| 2168 | |
| 2169 | case REQ_VIEW_CLOSE: |
| 2170 | /* XXX: Mark closed views by letting view->parent point to the |
| 2171 | * view itself. Parents to closed view should never be |
| 2172 | * followed. */ |
| 2173 | if (view->parent && |
| 2174 | view->parent->parent != view->parent) { |
| 2175 | memset(display, 0, sizeof(display)); |
| 2176 | current_view = 0; |
| 2177 | display[current_view] = view->parent; |
| 2178 | view->parent = view; |
| 2179 | resize_display(); |
| 2180 | redraw_display(); |
| 2181 | break; |
| 2182 | } |
| 2183 | /* Fall-through */ |
| 2184 | case REQ_QUIT: |
| 2185 | return FALSE; |
| 2186 | |
| 2187 | default: |
| 2188 | /* An unknown key will show most commonly used commands. */ |
| 2189 | report("Unknown key, press 'h' for help"); |
| 2190 | return TRUE; |
| 2191 | } |
| 2192 | |
| 2193 | return TRUE; |
| 2194 | } |
| 2195 | |
| 2196 | |
| 2197 | /* |
| 2198 | * Pager backend |
| 2199 | */ |
| 2200 | |
| 2201 | static bool |
| 2202 | pager_draw(struct view *view, struct line *line, unsigned int lineno) |
| 2203 | { |
| 2204 | char *text = line->data; |
| 2205 | enum line_type type = line->type; |
| 2206 | int textlen = strlen(text); |
| 2207 | int attr; |
| 2208 | |
| 2209 | wmove(view->win, lineno, 0); |
| 2210 | |
| 2211 | if (view->offset + lineno == view->lineno) { |
| 2212 | if (type == LINE_COMMIT) { |
| 2213 | string_copy(view->ref, text + 7); |
| 2214 | string_copy(ref_commit, view->ref); |
| 2215 | |
| 2216 | } else if (type == LINE_TREE_DIR || type == LINE_TREE_FILE) { |
| 2217 | string_ncopy(view->ref, text + STRING_SIZE("100644 blob "), 40); |
| 2218 | string_copy(ref_blob, view->ref); |
| 2219 | } |
| 2220 | |
| 2221 | type = LINE_CURSOR; |
| 2222 | wchgat(view->win, -1, 0, type, NULL); |
| 2223 | } |
| 2224 | |
| 2225 | attr = get_line_attr(type); |
| 2226 | wattrset(view->win, attr); |
| 2227 | |
| 2228 | if (opt_line_number || opt_tab_size < TABSIZE) { |
| 2229 | static char spaces[] = " "; |
| 2230 | int col_offset = 0, col = 0; |
| 2231 | |
| 2232 | if (opt_line_number) { |
| 2233 | unsigned long real_lineno = view->offset + lineno + 1; |
| 2234 | |
| 2235 | if (real_lineno == 1 || |
| 2236 | (real_lineno % opt_num_interval) == 0) { |
| 2237 | wprintw(view->win, "%.*d", view->digits, real_lineno); |
| 2238 | |
| 2239 | } else { |
| 2240 | waddnstr(view->win, spaces, |
| 2241 | MIN(view->digits, STRING_SIZE(spaces))); |
| 2242 | } |
| 2243 | waddstr(view->win, ": "); |
| 2244 | col_offset = view->digits + 2; |
| 2245 | } |
| 2246 | |
| 2247 | while (text && col_offset + col < view->width) { |
| 2248 | int cols_max = view->width - col_offset - col; |
| 2249 | char *pos = text; |
| 2250 | int cols; |
| 2251 | |
| 2252 | if (*text == '\t') { |
| 2253 | text++; |
| 2254 | assert(sizeof(spaces) > TABSIZE); |
| 2255 | pos = spaces; |
| 2256 | cols = opt_tab_size - (col % opt_tab_size); |
| 2257 | |
| 2258 | } else { |
| 2259 | text = strchr(text, '\t'); |
| 2260 | cols = line ? text - pos : strlen(pos); |
| 2261 | } |
| 2262 | |
| 2263 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
| 2264 | col += cols; |
| 2265 | } |
| 2266 | |
| 2267 | } else { |
| 2268 | int col = 0, pos = 0; |
| 2269 | |
| 2270 | for (; pos < textlen && col < view->width; pos++, col++) |
| 2271 | if (text[pos] == '\t') |
| 2272 | col += TABSIZE - (col % TABSIZE) - 1; |
| 2273 | |
| 2274 | waddnstr(view->win, text, pos); |
| 2275 | } |
| 2276 | |
| 2277 | return TRUE; |
| 2278 | } |
| 2279 | |
| 2280 | static bool |
| 2281 | add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep) |
| 2282 | { |
| 2283 | char refbuf[SIZEOF_STR]; |
| 2284 | char *ref = NULL; |
| 2285 | FILE *pipe; |
| 2286 | |
| 2287 | if (!string_format(refbuf, "git describe %s", commit_id)) |
| 2288 | return TRUE; |
| 2289 | |
| 2290 | pipe = popen(refbuf, "r"); |
| 2291 | if (!pipe) |
| 2292 | return TRUE; |
| 2293 | |
| 2294 | if ((ref = fgets(refbuf, sizeof(refbuf), pipe))) |
| 2295 | ref = chomp_string(ref); |
| 2296 | pclose(pipe); |
| 2297 | |
| 2298 | if (!ref || !*ref) |
| 2299 | return TRUE; |
| 2300 | |
| 2301 | /* This is the only fatal call, since it can "corrupt" the buffer. */ |
| 2302 | if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref)) |
| 2303 | return FALSE; |
| 2304 | |
| 2305 | return TRUE; |
| 2306 | } |
| 2307 | |
| 2308 | static void |
| 2309 | add_pager_refs(struct view *view, struct line *line) |
| 2310 | { |
| 2311 | char buf[SIZEOF_STR]; |
| 2312 | char *commit_id = line->data + STRING_SIZE("commit "); |
| 2313 | struct ref **refs; |
| 2314 | size_t bufpos = 0, refpos = 0; |
| 2315 | const char *sep = "Refs: "; |
| 2316 | bool is_tag = FALSE; |
| 2317 | |
| 2318 | assert(line->type == LINE_COMMIT); |
| 2319 | |
| 2320 | refs = get_refs(commit_id); |
| 2321 | if (!refs) { |
| 2322 | if (view == VIEW(REQ_VIEW_DIFF)) |
| 2323 | goto try_add_describe_ref; |
| 2324 | return; |
| 2325 | } |
| 2326 | |
| 2327 | do { |
| 2328 | struct ref *ref = refs[refpos]; |
| 2329 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; |
| 2330 | |
| 2331 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
| 2332 | return; |
| 2333 | sep = ", "; |
| 2334 | if (ref->tag) |
| 2335 | is_tag = TRUE; |
| 2336 | } while (refs[refpos++]->next); |
| 2337 | |
| 2338 | if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) { |
| 2339 | try_add_describe_ref: |
| 2340 | /* Add <tag>-g<commit_id> "fake" reference. */ |
| 2341 | if (!add_describe_ref(buf, &bufpos, commit_id, sep)) |
| 2342 | return; |
| 2343 | } |
| 2344 | |
| 2345 | if (bufpos == 0) |
| 2346 | return; |
| 2347 | |
| 2348 | if (!realloc_lines(view, view->line_size + 1)) |
| 2349 | return; |
| 2350 | |
| 2351 | line = &view->line[view->lines]; |
| 2352 | line->data = strdup(buf); |
| 2353 | if (!line->data) |
| 2354 | return; |
| 2355 | |
| 2356 | line->type = LINE_PP_REFS; |
| 2357 | view->lines++; |
| 2358 | } |
| 2359 | |
| 2360 | static bool |
| 2361 | pager_read(struct view *view, char *data) |
| 2362 | { |
| 2363 | struct line *line = &view->line[view->lines]; |
| 2364 | |
| 2365 | line->data = strdup(data); |
| 2366 | if (!line->data) |
| 2367 | return FALSE; |
| 2368 | |
| 2369 | line->type = get_line_type(line->data); |
| 2370 | view->lines++; |
| 2371 | |
| 2372 | if (line->type == LINE_COMMIT && |
| 2373 | (view == VIEW(REQ_VIEW_DIFF) || |
| 2374 | view == VIEW(REQ_VIEW_LOG))) |
| 2375 | add_pager_refs(view, line); |
| 2376 | |
| 2377 | return TRUE; |
| 2378 | } |
| 2379 | |
| 2380 | static bool |
| 2381 | pager_enter(struct view *view, struct line *line) |
| 2382 | { |
| 2383 | int split = 0; |
| 2384 | |
| 2385 | if (line->type == LINE_COMMIT && |
| 2386 | (view == VIEW(REQ_VIEW_LOG) || |
| 2387 | view == VIEW(REQ_VIEW_PAGER))) { |
| 2388 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
| 2389 | split = 1; |
| 2390 | } |
| 2391 | |
| 2392 | /* Always scroll the view even if it was split. That way |
| 2393 | * you can use Enter to scroll through the log view and |
| 2394 | * split open each commit diff. */ |
| 2395 | scroll_view(view, REQ_SCROLL_LINE_DOWN); |
| 2396 | |
| 2397 | /* FIXME: A minor workaround. Scrolling the view will call report("") |
| 2398 | * but if we are scrolling a non-current view this won't properly |
| 2399 | * update the view title. */ |
| 2400 | if (split) |
| 2401 | update_view_title(view); |
| 2402 | |
| 2403 | return TRUE; |
| 2404 | } |
| 2405 | |
| 2406 | static bool |
| 2407 | pager_grep(struct view *view, struct line *line) |
| 2408 | { |
| 2409 | regmatch_t pmatch; |
| 2410 | char *text = line->data; |
| 2411 | |
| 2412 | if (!*text) |
| 2413 | return FALSE; |
| 2414 | |
| 2415 | if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH) |
| 2416 | return FALSE; |
| 2417 | |
| 2418 | return TRUE; |
| 2419 | } |
| 2420 | |
| 2421 | static struct view_ops pager_ops = { |
| 2422 | "line", |
| 2423 | pager_draw, |
| 2424 | pager_read, |
| 2425 | pager_enter, |
| 2426 | pager_grep, |
| 2427 | }; |
| 2428 | |
| 2429 | |
| 2430 | /* |
| 2431 | * Tree backend |
| 2432 | */ |
| 2433 | |
| 2434 | /* Parse output from git ls-tree: |
| 2435 | * |
| 2436 | * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile |
| 2437 | * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README |
| 2438 | * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c |
| 2439 | * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf |
| 2440 | */ |
| 2441 | |
| 2442 | #define SIZEOF_TREE_ATTR \ |
| 2443 | STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t") |
| 2444 | |
| 2445 | #define TREE_UP_FORMAT "040000 tree %s\t.." |
| 2446 | |
| 2447 | static int |
| 2448 | tree_compare_entry(enum line_type type1, char *name1, |
| 2449 | enum line_type type2, char *name2) |
| 2450 | { |
| 2451 | if (type1 != type2) { |
| 2452 | if (type1 == LINE_TREE_DIR) |
| 2453 | return -1; |
| 2454 | return 1; |
| 2455 | } |
| 2456 | |
| 2457 | return strcmp(name1, name2); |
| 2458 | } |
| 2459 | |
| 2460 | static bool |
| 2461 | tree_read(struct view *view, char *text) |
| 2462 | { |
| 2463 | size_t textlen = strlen(text); |
| 2464 | char buf[SIZEOF_STR]; |
| 2465 | unsigned long pos; |
| 2466 | enum line_type type; |
| 2467 | bool first_read = view->lines == 0; |
| 2468 | |
| 2469 | if (textlen <= SIZEOF_TREE_ATTR) |
| 2470 | return FALSE; |
| 2471 | |
| 2472 | type = text[STRING_SIZE("100644 ")] == 't' |
| 2473 | ? LINE_TREE_DIR : LINE_TREE_FILE; |
| 2474 | |
| 2475 | if (first_read) { |
| 2476 | /* Add path info line */ |
| 2477 | if (string_format(buf, "Directory path /%s", opt_path) && |
| 2478 | realloc_lines(view, view->line_size + 1) && |
| 2479 | pager_read(view, buf)) |
| 2480 | view->line[view->lines - 1].type = LINE_DEFAULT; |
| 2481 | else |
| 2482 | return FALSE; |
| 2483 | |
| 2484 | /* Insert "link" to parent directory. */ |
| 2485 | if (*opt_path && |
| 2486 | string_format(buf, TREE_UP_FORMAT, view->ref) && |
| 2487 | realloc_lines(view, view->line_size + 1) && |
| 2488 | pager_read(view, buf)) |
| 2489 | view->line[view->lines - 1].type = LINE_TREE_DIR; |
| 2490 | else if (*opt_path) |
| 2491 | return FALSE; |
| 2492 | } |
| 2493 | |
| 2494 | /* Strip the path part ... */ |
| 2495 | if (*opt_path) { |
| 2496 | size_t pathlen = textlen - SIZEOF_TREE_ATTR; |
| 2497 | size_t striplen = strlen(opt_path); |
| 2498 | char *path = text + SIZEOF_TREE_ATTR; |
| 2499 | |
| 2500 | if (pathlen > striplen) |
| 2501 | memmove(path, path + striplen, |
| 2502 | pathlen - striplen + 1); |
| 2503 | } |
| 2504 | |
| 2505 | /* Skip "Directory ..." and ".." line. */ |
| 2506 | for (pos = 1 + !!*opt_path; pos < view->lines; pos++) { |
| 2507 | struct line *line = &view->line[pos]; |
| 2508 | char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR; |
| 2509 | char *path2 = text + SIZEOF_TREE_ATTR; |
| 2510 | int cmp = tree_compare_entry(line->type, path1, type, path2); |
| 2511 | |
| 2512 | if (cmp <= 0) |
| 2513 | continue; |
| 2514 | |
| 2515 | text = strdup(text); |
| 2516 | if (!text) |
| 2517 | return FALSE; |
| 2518 | |
| 2519 | if (view->lines > pos) |
| 2520 | memmove(&view->line[pos + 1], &view->line[pos], |
| 2521 | (view->lines - pos) * sizeof(*line)); |
| 2522 | |
| 2523 | line = &view->line[pos]; |
| 2524 | line->data = text; |
| 2525 | line->type = type; |
| 2526 | view->lines++; |
| 2527 | return TRUE; |
| 2528 | } |
| 2529 | |
| 2530 | if (!pager_read(view, text)) |
| 2531 | return FALSE; |
| 2532 | |
| 2533 | /* Move the current line to the first tree entry. */ |
| 2534 | if (first_read) |
| 2535 | view->lineno++; |
| 2536 | |
| 2537 | view->line[view->lines - 1].type = type; |
| 2538 | return TRUE; |
| 2539 | } |
| 2540 | |
| 2541 | static bool |
| 2542 | tree_enter(struct view *view, struct line *line) |
| 2543 | { |
| 2544 | enum open_flags flags = OPEN_DEFAULT; |
| 2545 | char *data = line->data; |
| 2546 | enum request request; |
| 2547 | |
| 2548 | switch (line->type) { |
| 2549 | case LINE_TREE_DIR: |
| 2550 | /* Depending on whether it is a subdir or parent (updir?) link |
| 2551 | * mangle the path buffer. */ |
| 2552 | if (line == &view->line[1] && *opt_path) { |
| 2553 | size_t path_len = strlen(opt_path); |
| 2554 | char *dirsep = opt_path + path_len - 1; |
| 2555 | |
| 2556 | while (dirsep > opt_path && dirsep[-1] != '/') |
| 2557 | dirsep--; |
| 2558 | |
| 2559 | dirsep[0] = 0; |
| 2560 | |
| 2561 | } else { |
| 2562 | size_t pathlen = strlen(opt_path); |
| 2563 | size_t origlen = pathlen; |
| 2564 | char *basename = data + SIZEOF_TREE_ATTR; |
| 2565 | |
| 2566 | if (!string_format_from(opt_path, &pathlen, "%s/", basename)) { |
| 2567 | opt_path[origlen] = 0; |
| 2568 | return TRUE; |
| 2569 | } |
| 2570 | } |
| 2571 | |
| 2572 | /* Trees and subtrees share the same ID, so they are not not |
| 2573 | * unique like blobs. */ |
| 2574 | flags |= OPEN_RELOAD; |
| 2575 | request = REQ_VIEW_TREE; |
| 2576 | break; |
| 2577 | |
| 2578 | case LINE_TREE_FILE: |
| 2579 | /* This causes the blob view to become split, and not having it |
| 2580 | * in the tree dir case will make the blob view automatically |
| 2581 | * disappear when moving to a different directory. */ |
| 2582 | flags |= OPEN_SPLIT; |
| 2583 | request = REQ_VIEW_BLOB; |
| 2584 | break; |
| 2585 | |
| 2586 | default: |
| 2587 | return TRUE; |
| 2588 | } |
| 2589 | |
| 2590 | open_view(view, request, flags); |
| 2591 | |
| 2592 | if (!VIEW(request)->pipe) |
| 2593 | return TRUE; |
| 2594 | |
| 2595 | /* For tree views insert the path to the parent as the first line. */ |
| 2596 | if (request == REQ_VIEW_BLOB) { |
| 2597 | /* Mirror what is showed in the title bar. */ |
| 2598 | string_ncopy(ref_blob, data + STRING_SIZE("100644 blob "), 40); |
| 2599 | string_copy(VIEW(REQ_VIEW_BLOB)->ref, ref_blob); |
| 2600 | return TRUE; |
| 2601 | } |
| 2602 | |
| 2603 | return TRUE; |
| 2604 | } |
| 2605 | |
| 2606 | static struct view_ops tree_ops = { |
| 2607 | "file", |
| 2608 | pager_draw, |
| 2609 | tree_read, |
| 2610 | tree_enter, |
| 2611 | pager_grep, |
| 2612 | }; |
| 2613 | |
| 2614 | static bool |
| 2615 | blob_read(struct view *view, char *line) |
| 2616 | { |
| 2617 | bool state = pager_read(view, line); |
| 2618 | |
| 2619 | if (state == TRUE) |
| 2620 | view->line[view->lines - 1].type = LINE_DEFAULT; |
| 2621 | |
| 2622 | return state; |
| 2623 | } |
| 2624 | |
| 2625 | static struct view_ops blob_ops = { |
| 2626 | "line", |
| 2627 | pager_draw, |
| 2628 | blob_read, |
| 2629 | pager_enter, |
| 2630 | pager_grep, |
| 2631 | }; |
| 2632 | |
| 2633 | |
| 2634 | /* |
| 2635 | * Main view backend |
| 2636 | */ |
| 2637 | |
| 2638 | struct commit { |
| 2639 | char id[41]; /* SHA1 ID. */ |
| 2640 | char title[75]; /* First line of the commit message. */ |
| 2641 | char author[75]; /* Author of the commit. */ |
| 2642 | struct tm time; /* Date from the author ident. */ |
| 2643 | struct ref **refs; /* Repository references. */ |
| 2644 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ |
| 2645 | size_t graph_size; /* The width of the graph array. */ |
| 2646 | }; |
| 2647 | |
| 2648 | static bool |
| 2649 | main_draw(struct view *view, struct line *line, unsigned int lineno) |
| 2650 | { |
| 2651 | char buf[DATE_COLS + 1]; |
| 2652 | struct commit *commit = line->data; |
| 2653 | enum line_type type; |
| 2654 | int col = 0; |
| 2655 | size_t timelen; |
| 2656 | size_t authorlen; |
| 2657 | int trimmed = 1; |
| 2658 | |
| 2659 | if (!*commit->author) |
| 2660 | return FALSE; |
| 2661 | |
| 2662 | wmove(view->win, lineno, col); |
| 2663 | |
| 2664 | if (view->offset + lineno == view->lineno) { |
| 2665 | string_copy(view->ref, commit->id); |
| 2666 | string_copy(ref_commit, view->ref); |
| 2667 | type = LINE_CURSOR; |
| 2668 | wattrset(view->win, get_line_attr(type)); |
| 2669 | wchgat(view->win, -1, 0, type, NULL); |
| 2670 | |
| 2671 | } else { |
| 2672 | type = LINE_MAIN_COMMIT; |
| 2673 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
| 2674 | } |
| 2675 | |
| 2676 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
| 2677 | waddnstr(view->win, buf, timelen); |
| 2678 | waddstr(view->win, " "); |
| 2679 | |
| 2680 | col += DATE_COLS; |
| 2681 | wmove(view->win, lineno, col); |
| 2682 | if (type != LINE_CURSOR) |
| 2683 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); |
| 2684 | |
| 2685 | if (opt_utf8) { |
| 2686 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); |
| 2687 | } else { |
| 2688 | authorlen = strlen(commit->author); |
| 2689 | if (authorlen > AUTHOR_COLS - 2) { |
| 2690 | authorlen = AUTHOR_COLS - 2; |
| 2691 | trimmed = 1; |
| 2692 | } |
| 2693 | } |
| 2694 | |
| 2695 | if (trimmed) { |
| 2696 | waddnstr(view->win, commit->author, authorlen); |
| 2697 | if (type != LINE_CURSOR) |
| 2698 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); |
| 2699 | waddch(view->win, '~'); |
| 2700 | } else { |
| 2701 | waddstr(view->win, commit->author); |
| 2702 | } |
| 2703 | |
| 2704 | col += AUTHOR_COLS; |
| 2705 | if (type != LINE_CURSOR) |
| 2706 | wattrset(view->win, A_NORMAL); |
| 2707 | |
| 2708 | if (opt_rev_graph && commit->graph_size) { |
| 2709 | size_t i; |
| 2710 | |
| 2711 | wmove(view->win, lineno, col); |
| 2712 | /* Using waddch() instead of waddnstr() ensures that |
| 2713 | * they'll be rendered correctly for the cursor line. */ |
| 2714 | for (i = 0; i < commit->graph_size; i++) |
| 2715 | waddch(view->win, commit->graph[i]); |
| 2716 | |
| 2717 | col += commit->graph_size + 1; |
| 2718 | } |
| 2719 | |
| 2720 | wmove(view->win, lineno, col); |
| 2721 | |
| 2722 | if (commit->refs) { |
| 2723 | size_t i = 0; |
| 2724 | |
| 2725 | do { |
| 2726 | if (type == LINE_CURSOR) |
| 2727 | ; |
| 2728 | else if (commit->refs[i]->tag) |
| 2729 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
| 2730 | else |
| 2731 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); |
| 2732 | waddstr(view->win, "["); |
| 2733 | waddstr(view->win, commit->refs[i]->name); |
| 2734 | waddstr(view->win, "]"); |
| 2735 | if (type != LINE_CURSOR) |
| 2736 | wattrset(view->win, A_NORMAL); |
| 2737 | waddstr(view->win, " "); |
| 2738 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
| 2739 | } while (commit->refs[i++]->next); |
| 2740 | } |
| 2741 | |
| 2742 | if (type != LINE_CURSOR) |
| 2743 | wattrset(view->win, get_line_attr(type)); |
| 2744 | |
| 2745 | { |
| 2746 | int titlelen = strlen(commit->title); |
| 2747 | |
| 2748 | if (col + titlelen > view->width) |
| 2749 | titlelen = view->width - col; |
| 2750 | |
| 2751 | waddnstr(view->win, commit->title, titlelen); |
| 2752 | } |
| 2753 | |
| 2754 | return TRUE; |
| 2755 | } |
| 2756 | |
| 2757 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
| 2758 | static bool |
| 2759 | main_read(struct view *view, char *line) |
| 2760 | { |
| 2761 | enum line_type type = get_line_type(line); |
| 2762 | struct commit *commit = view->lines |
| 2763 | ? view->line[view->lines - 1].data : NULL; |
| 2764 | |
| 2765 | switch (type) { |
| 2766 | case LINE_COMMIT: |
| 2767 | commit = calloc(1, sizeof(struct commit)); |
| 2768 | if (!commit) |
| 2769 | return FALSE; |
| 2770 | |
| 2771 | line += STRING_SIZE("commit "); |
| 2772 | |
| 2773 | view->line[view->lines++].data = commit; |
| 2774 | string_copy(commit->id, line); |
| 2775 | commit->refs = get_refs(commit->id); |
| 2776 | commit->graph[commit->graph_size++] = ACS_LTEE; |
| 2777 | break; |
| 2778 | |
| 2779 | case LINE_AUTHOR: |
| 2780 | { |
| 2781 | char *ident = line + STRING_SIZE("author "); |
| 2782 | char *end = strchr(ident, '<'); |
| 2783 | |
| 2784 | if (!commit) |
| 2785 | break; |
| 2786 | |
| 2787 | if (end) { |
| 2788 | char *email = end + 1; |
| 2789 | |
| 2790 | for (; end > ident && isspace(end[-1]); end--) ; |
| 2791 | |
| 2792 | if (end == ident && *email) { |
| 2793 | ident = email; |
| 2794 | end = strchr(ident, '>'); |
| 2795 | for (; end > ident && isspace(end[-1]); end--) ; |
| 2796 | } |
| 2797 | *end = 0; |
| 2798 | } |
| 2799 | |
| 2800 | /* End is NULL or ident meaning there's no author. */ |
| 2801 | if (end <= ident) |
| 2802 | ident = "Unknown"; |
| 2803 | |
| 2804 | string_copy(commit->author, ident); |
| 2805 | |
| 2806 | /* Parse epoch and timezone */ |
| 2807 | if (end) { |
| 2808 | char *secs = strchr(end + 1, '>'); |
| 2809 | char *zone; |
| 2810 | time_t time; |
| 2811 | |
| 2812 | if (!secs || secs[1] != ' ') |
| 2813 | break; |
| 2814 | |
| 2815 | secs += 2; |
| 2816 | time = (time_t) atol(secs); |
| 2817 | zone = strchr(secs, ' '); |
| 2818 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
| 2819 | long tz; |
| 2820 | |
| 2821 | zone++; |
| 2822 | tz = ('0' - zone[1]) * 60 * 60 * 10; |
| 2823 | tz += ('0' - zone[2]) * 60 * 60; |
| 2824 | tz += ('0' - zone[3]) * 60; |
| 2825 | tz += ('0' - zone[4]) * 60; |
| 2826 | |
| 2827 | if (zone[0] == '-') |
| 2828 | tz = -tz; |
| 2829 | |
| 2830 | time -= tz; |
| 2831 | } |
| 2832 | gmtime_r(&time, &commit->time); |
| 2833 | } |
| 2834 | break; |
| 2835 | } |
| 2836 | default: |
| 2837 | if (!commit) |
| 2838 | break; |
| 2839 | |
| 2840 | /* Fill in the commit title if it has not already been set. */ |
| 2841 | if (commit->title[0]) |
| 2842 | break; |
| 2843 | |
| 2844 | /* Require titles to start with a non-space character at the |
| 2845 | * offset used by git log. */ |
| 2846 | /* FIXME: More gracefull handling of titles; append "..." to |
| 2847 | * shortened titles, etc. */ |
| 2848 | if (strncmp(line, " ", 4) || |
| 2849 | isspace(line[4])) |
| 2850 | break; |
| 2851 | |
| 2852 | string_copy(commit->title, line + 4); |
| 2853 | } |
| 2854 | |
| 2855 | return TRUE; |
| 2856 | } |
| 2857 | |
| 2858 | static bool |
| 2859 | main_enter(struct view *view, struct line *line) |
| 2860 | { |
| 2861 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
| 2862 | |
| 2863 | open_view(view, REQ_VIEW_DIFF, flags); |
| 2864 | return TRUE; |
| 2865 | } |
| 2866 | |
| 2867 | static bool |
| 2868 | main_grep(struct view *view, struct line *line) |
| 2869 | { |
| 2870 | struct commit *commit = line->data; |
| 2871 | enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state; |
| 2872 | char buf[DATE_COLS + 1]; |
| 2873 | regmatch_t pmatch; |
| 2874 | |
| 2875 | for (state = S_TITLE; state < S_END; state++) { |
| 2876 | char *text; |
| 2877 | |
| 2878 | switch (state) { |
| 2879 | case S_TITLE: text = commit->title; break; |
| 2880 | case S_AUTHOR: text = commit->author; break; |
| 2881 | case S_DATE: |
| 2882 | if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time)) |
| 2883 | continue; |
| 2884 | text = buf; |
| 2885 | break; |
| 2886 | |
| 2887 | default: |
| 2888 | return FALSE; |
| 2889 | } |
| 2890 | |
| 2891 | if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH) |
| 2892 | return TRUE; |
| 2893 | } |
| 2894 | |
| 2895 | return FALSE; |
| 2896 | } |
| 2897 | |
| 2898 | static struct view_ops main_ops = { |
| 2899 | "commit", |
| 2900 | main_draw, |
| 2901 | main_read, |
| 2902 | main_enter, |
| 2903 | main_grep, |
| 2904 | }; |
| 2905 | |
| 2906 | |
| 2907 | /* |
| 2908 | * Unicode / UTF-8 handling |
| 2909 | * |
| 2910 | * NOTE: Much of the following code for dealing with unicode is derived from |
| 2911 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is |
| 2912 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. |
| 2913 | */ |
| 2914 | |
| 2915 | /* I've (over)annotated a lot of code snippets because I am not entirely |
| 2916 | * confident that the approach taken by this small UTF-8 interface is correct. |
| 2917 | * --jonas */ |
| 2918 | |
| 2919 | static inline int |
| 2920 | unicode_width(unsigned long c) |
| 2921 | { |
| 2922 | if (c >= 0x1100 && |
| 2923 | (c <= 0x115f /* Hangul Jamo */ |
| 2924 | || c == 0x2329 |
| 2925 | || c == 0x232a |
| 2926 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) |
| 2927 | /* CJK ... Yi */ |
| 2928 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
| 2929 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ |
| 2930 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ |
| 2931 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ |
| 2932 | || (c >= 0xffe0 && c <= 0xffe6) |
| 2933 | || (c >= 0x20000 && c <= 0x2fffd) |
| 2934 | || (c >= 0x30000 && c <= 0x3fffd))) |
| 2935 | return 2; |
| 2936 | |
| 2937 | return 1; |
| 2938 | } |
| 2939 | |
| 2940 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. |
| 2941 | * Illegal bytes are set one. */ |
| 2942 | static const unsigned char utf8_bytes[256] = { |
| 2943 | 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, |
| 2944 | 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, |
| 2945 | 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, |
| 2946 | 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, |
| 2947 | 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, |
| 2948 | 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, |
| 2949 | 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, |
| 2950 | 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, |
| 2951 | }; |
| 2952 | |
| 2953 | /* Decode UTF-8 multi-byte representation into a unicode character. */ |
| 2954 | static inline unsigned long |
| 2955 | utf8_to_unicode(const char *string, size_t length) |
| 2956 | { |
| 2957 | unsigned long unicode; |
| 2958 | |
| 2959 | switch (length) { |
| 2960 | case 1: |
| 2961 | unicode = string[0]; |
| 2962 | break; |
| 2963 | case 2: |
| 2964 | unicode = (string[0] & 0x1f) << 6; |
| 2965 | unicode += (string[1] & 0x3f); |
| 2966 | break; |
| 2967 | case 3: |
| 2968 | unicode = (string[0] & 0x0f) << 12; |
| 2969 | unicode += ((string[1] & 0x3f) << 6); |
| 2970 | unicode += (string[2] & 0x3f); |
| 2971 | break; |
| 2972 | case 4: |
| 2973 | unicode = (string[0] & 0x0f) << 18; |
| 2974 | unicode += ((string[1] & 0x3f) << 12); |
| 2975 | unicode += ((string[2] & 0x3f) << 6); |
| 2976 | unicode += (string[3] & 0x3f); |
| 2977 | break; |
| 2978 | case 5: |
| 2979 | unicode = (string[0] & 0x0f) << 24; |
| 2980 | unicode += ((string[1] & 0x3f) << 18); |
| 2981 | unicode += ((string[2] & 0x3f) << 12); |
| 2982 | unicode += ((string[3] & 0x3f) << 6); |
| 2983 | unicode += (string[4] & 0x3f); |
| 2984 | break; |
| 2985 | case 6: |
| 2986 | unicode = (string[0] & 0x01) << 30; |
| 2987 | unicode += ((string[1] & 0x3f) << 24); |
| 2988 | unicode += ((string[2] & 0x3f) << 18); |
| 2989 | unicode += ((string[3] & 0x3f) << 12); |
| 2990 | unicode += ((string[4] & 0x3f) << 6); |
| 2991 | unicode += (string[5] & 0x3f); |
| 2992 | break; |
| 2993 | default: |
| 2994 | die("Invalid unicode length"); |
| 2995 | } |
| 2996 | |
| 2997 | /* Invalid characters could return the special 0xfffd value but NUL |
| 2998 | * should be just as good. */ |
| 2999 | return unicode > 0xffff ? 0 : unicode; |
| 3000 | } |
| 3001 | |
| 3002 | /* Calculates how much of string can be shown within the given maximum width |
| 3003 | * and sets trimmed parameter to non-zero value if all of string could not be |
| 3004 | * shown. |
| 3005 | * |
| 3006 | * Additionally, adds to coloffset how many many columns to move to align with |
| 3007 | * the expected position. Takes into account how multi-byte and double-width |
| 3008 | * characters will effect the cursor position. |
| 3009 | * |
| 3010 | * Returns the number of bytes to output from string to satisfy max_width. */ |
| 3011 | static size_t |
| 3012 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) |
| 3013 | { |
| 3014 | const char *start = string; |
| 3015 | const char *end = strchr(string, '\0'); |
| 3016 | size_t mbwidth = 0; |
| 3017 | size_t width = 0; |
| 3018 | |
| 3019 | *trimmed = 0; |
| 3020 | |
| 3021 | while (string < end) { |
| 3022 | int c = *(unsigned char *) string; |
| 3023 | unsigned char bytes = utf8_bytes[c]; |
| 3024 | size_t ucwidth; |
| 3025 | unsigned long unicode; |
| 3026 | |
| 3027 | if (string + bytes > end) |
| 3028 | break; |
| 3029 | |
| 3030 | /* Change representation to figure out whether |
| 3031 | * it is a single- or double-width character. */ |
| 3032 | |
| 3033 | unicode = utf8_to_unicode(string, bytes); |
| 3034 | /* FIXME: Graceful handling of invalid unicode character. */ |
| 3035 | if (!unicode) |
| 3036 | break; |
| 3037 | |
| 3038 | ucwidth = unicode_width(unicode); |
| 3039 | width += ucwidth; |
| 3040 | if (width > max_width) { |
| 3041 | *trimmed = 1; |
| 3042 | break; |
| 3043 | } |
| 3044 | |
| 3045 | /* The column offset collects the differences between the |
| 3046 | * number of bytes encoding a character and the number of |
| 3047 | * columns will be used for rendering said character. |
| 3048 | * |
| 3049 | * So if some character A is encoded in 2 bytes, but will be |
| 3050 | * represented on the screen using only 1 byte this will and up |
| 3051 | * adding 1 to the multi-byte column offset. |
| 3052 | * |
| 3053 | * Assumes that no double-width character can be encoding in |
| 3054 | * less than two bytes. */ |
| 3055 | if (bytes > ucwidth) |
| 3056 | mbwidth += bytes - ucwidth; |
| 3057 | |
| 3058 | string += bytes; |
| 3059 | } |
| 3060 | |
| 3061 | *coloffset += mbwidth; |
| 3062 | |
| 3063 | return string - start; |
| 3064 | } |
| 3065 | |
| 3066 | |
| 3067 | /* |
| 3068 | * Status management |
| 3069 | */ |
| 3070 | |
| 3071 | /* Whether or not the curses interface has been initialized. */ |
| 3072 | static bool cursed = FALSE; |
| 3073 | |
| 3074 | /* The status window is used for polling keystrokes. */ |
| 3075 | static WINDOW *status_win; |
| 3076 | |
| 3077 | /* Update status and title window. */ |
| 3078 | static void |
| 3079 | report(const char *msg, ...) |
| 3080 | { |
| 3081 | static bool empty = TRUE; |
| 3082 | struct view *view = display[current_view]; |
| 3083 | |
| 3084 | if (!empty || *msg) { |
| 3085 | va_list args; |
| 3086 | |
| 3087 | va_start(args, msg); |
| 3088 | |
| 3089 | werase(status_win); |
| 3090 | wmove(status_win, 0, 0); |
| 3091 | if (*msg) { |
| 3092 | vwprintw(status_win, msg, args); |
| 3093 | empty = FALSE; |
| 3094 | } else { |
| 3095 | empty = TRUE; |
| 3096 | } |
| 3097 | wrefresh(status_win); |
| 3098 | |
| 3099 | va_end(args); |
| 3100 | } |
| 3101 | |
| 3102 | update_view_title(view); |
| 3103 | update_display_cursor(); |
| 3104 | } |
| 3105 | |
| 3106 | /* Controls when nodelay should be in effect when polling user input. */ |
| 3107 | static void |
| 3108 | set_nonblocking_input(bool loading) |
| 3109 | { |
| 3110 | static unsigned int loading_views; |
| 3111 | |
| 3112 | if ((loading == FALSE && loading_views-- == 1) || |
| 3113 | (loading == TRUE && loading_views++ == 0)) |
| 3114 | nodelay(status_win, loading); |
| 3115 | } |
| 3116 | |
| 3117 | static void |
| 3118 | init_display(void) |
| 3119 | { |
| 3120 | int x, y; |
| 3121 | |
| 3122 | /* Initialize the curses library */ |
| 3123 | if (isatty(STDIN_FILENO)) { |
| 3124 | cursed = !!initscr(); |
| 3125 | } else { |
| 3126 | /* Leave stdin and stdout alone when acting as a pager. */ |
| 3127 | FILE *io = fopen("/dev/tty", "r+"); |
| 3128 | |
| 3129 | if (!io) |
| 3130 | die("Failed to open /dev/tty"); |
| 3131 | cursed = !!newterm(NULL, io, io); |
| 3132 | } |
| 3133 | |
| 3134 | if (!cursed) |
| 3135 | die("Failed to initialize curses"); |
| 3136 | |
| 3137 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
| 3138 | cbreak(); /* Take input chars one at a time, no wait for \n */ |
| 3139 | noecho(); /* Don't echo input */ |
| 3140 | leaveok(stdscr, TRUE); |
| 3141 | |
| 3142 | if (has_colors()) |
| 3143 | init_colors(); |
| 3144 | |
| 3145 | getmaxyx(stdscr, y, x); |
| 3146 | status_win = newwin(1, 0, y - 1, 0); |
| 3147 | if (!status_win) |
| 3148 | die("Failed to create status window"); |
| 3149 | |
| 3150 | /* Enable keyboard mapping */ |
| 3151 | keypad(status_win, TRUE); |
| 3152 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
| 3153 | } |
| 3154 | |
| 3155 | static char * |
| 3156 | read_prompt(const char *prompt) |
| 3157 | { |
| 3158 | enum { READING, STOP, CANCEL } status = READING; |
| 3159 | static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")]; |
| 3160 | int pos = 0; |
| 3161 | |
| 3162 | while (status == READING) { |
| 3163 | struct view *view; |
| 3164 | int i, key; |
| 3165 | |
| 3166 | foreach_view (view, i) |
| 3167 | update_view(view); |
| 3168 | |
| 3169 | report("%s%.*s", prompt, pos, buf); |
| 3170 | /* Refresh, accept single keystroke of input */ |
| 3171 | key = wgetch(status_win); |
| 3172 | switch (key) { |
| 3173 | case KEY_RETURN: |
| 3174 | case KEY_ENTER: |
| 3175 | case '\n': |
| 3176 | status = pos ? STOP : CANCEL; |
| 3177 | break; |
| 3178 | |
| 3179 | case KEY_BACKSPACE: |
| 3180 | if (pos > 0) |
| 3181 | pos--; |
| 3182 | else |
| 3183 | status = CANCEL; |
| 3184 | break; |
| 3185 | |
| 3186 | case KEY_ESC: |
| 3187 | status = CANCEL; |
| 3188 | break; |
| 3189 | |
| 3190 | case ERR: |
| 3191 | break; |
| 3192 | |
| 3193 | default: |
| 3194 | if (pos >= sizeof(buf)) { |
| 3195 | report("Input string too long"); |
| 3196 | return NULL; |
| 3197 | } |
| 3198 | |
| 3199 | if (isprint(key)) |
| 3200 | buf[pos++] = (char) key; |
| 3201 | } |
| 3202 | } |
| 3203 | |
| 3204 | if (status == CANCEL) { |
| 3205 | /* Clear the status window */ |
| 3206 | report(""); |
| 3207 | return NULL; |
| 3208 | } |
| 3209 | |
| 3210 | buf[pos++] = 0; |
| 3211 | |
| 3212 | return buf; |
| 3213 | } |
| 3214 | |
| 3215 | /* |
| 3216 | * Repository references |
| 3217 | */ |
| 3218 | |
| 3219 | static struct ref *refs; |
| 3220 | static size_t refs_size; |
| 3221 | |
| 3222 | /* Id <-> ref store */ |
| 3223 | static struct ref ***id_refs; |
| 3224 | static size_t id_refs_size; |
| 3225 | |
| 3226 | static struct ref ** |
| 3227 | get_refs(char *id) |
| 3228 | { |
| 3229 | struct ref ***tmp_id_refs; |
| 3230 | struct ref **ref_list = NULL; |
| 3231 | size_t ref_list_size = 0; |
| 3232 | size_t i; |
| 3233 | |
| 3234 | for (i = 0; i < id_refs_size; i++) |
| 3235 | if (!strcmp(id, id_refs[i][0]->id)) |
| 3236 | return id_refs[i]; |
| 3237 | |
| 3238 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); |
| 3239 | if (!tmp_id_refs) |
| 3240 | return NULL; |
| 3241 | |
| 3242 | id_refs = tmp_id_refs; |
| 3243 | |
| 3244 | for (i = 0; i < refs_size; i++) { |
| 3245 | struct ref **tmp; |
| 3246 | |
| 3247 | if (strcmp(id, refs[i].id)) |
| 3248 | continue; |
| 3249 | |
| 3250 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
| 3251 | if (!tmp) { |
| 3252 | if (ref_list) |
| 3253 | free(ref_list); |
| 3254 | return NULL; |
| 3255 | } |
| 3256 | |
| 3257 | ref_list = tmp; |
| 3258 | if (ref_list_size > 0) |
| 3259 | ref_list[ref_list_size - 1]->next = 1; |
| 3260 | ref_list[ref_list_size] = &refs[i]; |
| 3261 | |
| 3262 | /* XXX: The properties of the commit chains ensures that we can |
| 3263 | * safely modify the shared ref. The repo references will |
| 3264 | * always be similar for the same id. */ |
| 3265 | ref_list[ref_list_size]->next = 0; |
| 3266 | ref_list_size++; |
| 3267 | } |
| 3268 | |
| 3269 | if (ref_list) |
| 3270 | id_refs[id_refs_size++] = ref_list; |
| 3271 | |
| 3272 | return ref_list; |
| 3273 | } |
| 3274 | |
| 3275 | static int |
| 3276 | read_ref(char *id, int idlen, char *name, int namelen) |
| 3277 | { |
| 3278 | struct ref *ref; |
| 3279 | bool tag = FALSE; |
| 3280 | |
| 3281 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
| 3282 | /* Commits referenced by tags has "^{}" appended. */ |
| 3283 | if (name[namelen - 1] != '}') |
| 3284 | return OK; |
| 3285 | |
| 3286 | while (namelen > 0 && name[namelen] != '^') |
| 3287 | namelen--; |
| 3288 | |
| 3289 | tag = TRUE; |
| 3290 | namelen -= STRING_SIZE("refs/tags/"); |
| 3291 | name += STRING_SIZE("refs/tags/"); |
| 3292 | |
| 3293 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
| 3294 | namelen -= STRING_SIZE("refs/heads/"); |
| 3295 | name += STRING_SIZE("refs/heads/"); |
| 3296 | |
| 3297 | } else if (!strcmp(name, "HEAD")) { |
| 3298 | return OK; |
| 3299 | } |
| 3300 | |
| 3301 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
| 3302 | if (!refs) |
| 3303 | return ERR; |
| 3304 | |
| 3305 | ref = &refs[refs_size++]; |
| 3306 | ref->name = malloc(namelen + 1); |
| 3307 | if (!ref->name) |
| 3308 | return ERR; |
| 3309 | |
| 3310 | strncpy(ref->name, name, namelen); |
| 3311 | ref->name[namelen] = 0; |
| 3312 | ref->tag = tag; |
| 3313 | string_copy(ref->id, id); |
| 3314 | |
| 3315 | return OK; |
| 3316 | } |
| 3317 | |
| 3318 | static int |
| 3319 | load_refs(void) |
| 3320 | { |
| 3321 | const char *cmd_env = getenv("TIG_LS_REMOTE"); |
| 3322 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; |
| 3323 | |
| 3324 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
| 3325 | } |
| 3326 | |
| 3327 | static int |
| 3328 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
| 3329 | { |
| 3330 | if (!strcmp(name, "i18n.commitencoding")) |
| 3331 | string_copy(opt_encoding, value); |
| 3332 | |
| 3333 | return OK; |
| 3334 | } |
| 3335 | |
| 3336 | static int |
| 3337 | load_repo_config(void) |
| 3338 | { |
| 3339 | return read_properties(popen("git repo-config --list", "r"), |
| 3340 | "=", read_repo_config_option); |
| 3341 | } |
| 3342 | |
| 3343 | static int |
| 3344 | read_properties(FILE *pipe, const char *separators, |
| 3345 | int (*read_property)(char *, int, char *, int)) |
| 3346 | { |
| 3347 | char buffer[BUFSIZ]; |
| 3348 | char *name; |
| 3349 | int state = OK; |
| 3350 | |
| 3351 | if (!pipe) |
| 3352 | return ERR; |
| 3353 | |
| 3354 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
| 3355 | char *value; |
| 3356 | size_t namelen; |
| 3357 | size_t valuelen; |
| 3358 | |
| 3359 | name = chomp_string(name); |
| 3360 | namelen = strcspn(name, separators); |
| 3361 | |
| 3362 | if (name[namelen]) { |
| 3363 | name[namelen] = 0; |
| 3364 | value = chomp_string(name + namelen + 1); |
| 3365 | valuelen = strlen(value); |
| 3366 | |
| 3367 | } else { |
| 3368 | value = ""; |
| 3369 | valuelen = 0; |
| 3370 | } |
| 3371 | |
| 3372 | state = read_property(name, namelen, value, valuelen); |
| 3373 | } |
| 3374 | |
| 3375 | if (state != ERR && ferror(pipe)) |
| 3376 | state = ERR; |
| 3377 | |
| 3378 | pclose(pipe); |
| 3379 | |
| 3380 | return state; |
| 3381 | } |
| 3382 | |
| 3383 | |
| 3384 | /* |
| 3385 | * Main |
| 3386 | */ |
| 3387 | |
| 3388 | static void __NORETURN |
| 3389 | quit(int sig) |
| 3390 | { |
| 3391 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
| 3392 | if (cursed) |
| 3393 | endwin(); |
| 3394 | exit(0); |
| 3395 | } |
| 3396 | |
| 3397 | static void __NORETURN |
| 3398 | die(const char *err, ...) |
| 3399 | { |
| 3400 | va_list args; |
| 3401 | |
| 3402 | endwin(); |
| 3403 | |
| 3404 | va_start(args, err); |
| 3405 | fputs("tig: ", stderr); |
| 3406 | vfprintf(stderr, err, args); |
| 3407 | fputs("\n", stderr); |
| 3408 | va_end(args); |
| 3409 | |
| 3410 | exit(1); |
| 3411 | } |
| 3412 | |
| 3413 | int |
| 3414 | main(int argc, char *argv[]) |
| 3415 | { |
| 3416 | struct view *view; |
| 3417 | enum request request; |
| 3418 | size_t i; |
| 3419 | |
| 3420 | signal(SIGINT, quit); |
| 3421 | |
| 3422 | if (setlocale(LC_ALL, "")) { |
| 3423 | string_copy(opt_codeset, nl_langinfo(CODESET)); |
| 3424 | } |
| 3425 | |
| 3426 | if (load_options() == ERR) |
| 3427 | die("Failed to load user config."); |
| 3428 | |
| 3429 | /* Load the repo config file so options can be overwritten from |
| 3430 | * the command line. */ |
| 3431 | if (load_repo_config() == ERR) |
| 3432 | die("Failed to load repo config."); |
| 3433 | |
| 3434 | if (!parse_options(argc, argv)) |
| 3435 | return 0; |
| 3436 | |
| 3437 | if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) { |
| 3438 | opt_iconv = iconv_open(opt_codeset, opt_encoding); |
| 3439 | if (opt_iconv == ICONV_NONE) |
| 3440 | die("Failed to initialize character set conversion"); |
| 3441 | } |
| 3442 | |
| 3443 | if (load_refs() == ERR) |
| 3444 | die("Failed to load refs."); |
| 3445 | |
| 3446 | /* Require a git repository unless when running in pager mode. */ |
| 3447 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) |
| 3448 | die("Not a git repository"); |
| 3449 | |
| 3450 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
| 3451 | view->cmd_env = getenv(view->cmd_env); |
| 3452 | |
| 3453 | request = opt_request; |
| 3454 | |
| 3455 | init_display(); |
| 3456 | |
| 3457 | while (view_driver(display[current_view], request)) { |
| 3458 | int key; |
| 3459 | int i; |
| 3460 | |
| 3461 | foreach_view (view, i) |
| 3462 | update_view(view); |
| 3463 | |
| 3464 | /* Refresh, accept single keystroke of input */ |
| 3465 | key = wgetch(status_win); |
| 3466 | |
| 3467 | request = get_keybinding(display[current_view]->keymap, key); |
| 3468 | |
| 3469 | /* Some low-level request handling. This keeps access to |
| 3470 | * status_win restricted. */ |
| 3471 | switch (request) { |
| 3472 | case REQ_PROMPT: |
| 3473 | { |
| 3474 | char *cmd = read_prompt(":"); |
| 3475 | |
| 3476 | if (cmd && string_format(opt_cmd, "git %s", cmd)) { |
| 3477 | if (strncmp(cmd, "show", 4) && isspace(cmd[4])) { |
| 3478 | opt_request = REQ_VIEW_DIFF; |
| 3479 | } else { |
| 3480 | opt_request = REQ_VIEW_PAGER; |
| 3481 | } |
| 3482 | break; |
| 3483 | } |
| 3484 | |
| 3485 | request = REQ_NONE; |
| 3486 | break; |
| 3487 | } |
| 3488 | case REQ_SEARCH: |
| 3489 | case REQ_SEARCH_BACK: |
| 3490 | { |
| 3491 | const char *prompt = request == REQ_SEARCH |
| 3492 | ? "/" : "?"; |
| 3493 | char *search = read_prompt(prompt); |
| 3494 | |
| 3495 | if (search) |
| 3496 | string_copy(opt_search, search); |
| 3497 | else |
| 3498 | request = REQ_NONE; |
| 3499 | break; |
| 3500 | } |
| 3501 | case REQ_SCREEN_RESIZE: |
| 3502 | { |
| 3503 | int height, width; |
| 3504 | |
| 3505 | getmaxyx(stdscr, height, width); |
| 3506 | |
| 3507 | /* Resize the status view and let the view driver take |
| 3508 | * care of resizing the displayed views. */ |
| 3509 | wresize(status_win, 1, width); |
| 3510 | mvwin(status_win, height - 1, 0); |
| 3511 | wrefresh(status_win); |
| 3512 | break; |
| 3513 | } |
| 3514 | default: |
| 3515 | break; |
| 3516 | } |
| 3517 | } |
| 3518 | |
| 3519 | quit(0); |
| 3520 | |
| 3521 | return 0; |
| 3522 | } |