* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
-/**
- * TIG(1)
- * ======
- *
- * NAME
- * ----
- * tig - text-mode interface for git
- *
- * SYNOPSIS
- * --------
- * [verse]
- * tig [options]
- * tig [options] [--] [git log options]
- * tig [options] log [git log options]
- * tig [options] diff [git diff options]
- * tig [options] show [git show options]
- * tig [options] < [git command output]
- *
- * DESCRIPTION
- * -----------
- * Browse changes in a git repository. Additionally, tig(1) can also act
- * as a pager for output of various git commands.
- *
- * When browsing repositories, tig(1) uses the underlying git commands
- * to present the user with various views, such as summarized commit log
- * and showing the commit with the log message, diffstat, and the diff.
- *
- * Using tig(1) as a pager, it will display input from stdin and try
- * to colorize it.
- **/
#ifndef VERSION
#define VERSION "tig-0.3"
#include <curses.h>
-static void die(const char *err, ...);
+#if __GNUC__ >= 3
+#define __NORETURN __attribute__((__noreturn__))
+#else
+#define __NORETURN
+#endif
+
+static void __NORETURN die(const char *err, ...);
static void report(const char *msg, ...);
static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, int, char *, int));
static void set_nonblocking_input(bool loading);
static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed);
+static void load_help_page(void);
#define ABS(x) ((x) >= 0 ? (x) : -(x))
#define MIN(x, y) ((x) < (y) ? (x) : (y))
#define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
#define SIZEOF_CMD 1024 /* Size of command buffer. */
+#define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
/* This color name can be used to refer to the default term colors. */
#define COLOR_DEFAULT (-1)
-#define TIG_HELP "(d)iff, (l)og, (m)ain, (q)uit, (h)elp"
-
/* The format and size of the date column in the main view. */
#define DATE_FORMAT "%Y-%m-%d %H:%M"
#define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
#define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
+#define TIG_LS_REMOTE \
+ "git ls-remote . 2>/dev/null"
+
+#define TIG_DIFF_CMD \
+ "git show --patch-with-stat --find-copies-harder -B -C %s"
+
+#define TIG_LOG_CMD \
+ "git log --cc --stat -n100 %s"
+
+#define TIG_MAIN_CMD \
+ "git log --topo-order --stat --pretty=raw %s"
+
+/* XXX: Needs to be defined to the empty string. */
+#define TIG_HELP_CMD ""
+#define TIG_PAGER_CMD ""
+
/* Some ascii-shorthands fitted into the ncurses namespace. */
#define KEY_TAB '\t'
#define KEY_RETURN '\r'
#define KEY_ESC 27
-/* User action requests. */
-enum request {
- /* Offset all requests to avoid conflicts with ncurses getch values. */
- REQ_OFFSET = KEY_MAX + 1,
-
- /* XXX: Keep the view request first and in sync with views[]. */
- REQ_VIEW_MAIN,
- REQ_VIEW_DIFF,
- REQ_VIEW_LOG,
- REQ_VIEW_HELP,
- REQ_VIEW_PAGER,
-
- REQ_ENTER,
- REQ_QUIT,
- REQ_PROMPT,
- REQ_SCREEN_REDRAW,
- REQ_SCREEN_RESIZE,
- REQ_SCREEN_UPDATE,
- REQ_SHOW_VERSION,
- REQ_STOP_LOADING,
- REQ_TOGGLE_LINE_NUMBERS,
- REQ_VIEW_NEXT,
- REQ_VIEW_CLOSE,
- REQ_NEXT,
- REQ_PREVIOUS,
-
- REQ_MOVE_UP,
- REQ_MOVE_DOWN,
- REQ_MOVE_PAGE_UP,
- REQ_MOVE_PAGE_DOWN,
- REQ_MOVE_FIRST_LINE,
- REQ_MOVE_LAST_LINE,
-
- REQ_SCROLL_LINE_UP,
- REQ_SCROLL_LINE_DOWN,
- REQ_SCROLL_PAGE_UP,
- REQ_SCROLL_PAGE_DOWN,
-};
-
struct ref {
char *name; /* Ref name; tag or head names are shortened. */
char id[41]; /* Commit SHA1 ID */
return name;
}
+static bool
+string_nformat(char *buf, size_t bufsize, int *bufpos, const char *fmt, ...)
+{
+ va_list args;
+ int pos = bufpos ? *bufpos : 0;
+
+ va_start(args, fmt);
+ pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
+ va_end(args);
+
+ if (bufpos)
+ *bufpos = pos;
+
+ return pos >= bufsize ? FALSE : TRUE;
+}
+
+#define string_format(buf, fmt, args...) \
+ string_nformat(buf, sizeof(buf), NULL, fmt, args)
+
+#define string_format_from(buf, from, fmt, args...) \
+ string_nformat(buf, sizeof(buf), from, fmt, args)
/* Shell quoting
*
}
-/**
- * OPTIONS
- * -------
- **/
+/*
+ * User requests
+ */
+
+#define REQ_INFO \
+ /* XXX: Keep the view request first and in sync with views[]. */ \
+ REQ_GROUP("View switching") \
+ REQ_(VIEW_MAIN, "Show main view"), \
+ REQ_(VIEW_DIFF, "Show diff view"), \
+ REQ_(VIEW_LOG, "Show log view"), \
+ REQ_(VIEW_HELP, "Show help page"), \
+ REQ_(VIEW_PAGER, "Show pager view"), \
+ \
+ REQ_GROUP("View manipulation") \
+ REQ_(ENTER, "Enter current line and scroll"), \
+ REQ_(NEXT, "Move to next"), \
+ REQ_(PREVIOUS, "Move to previous"), \
+ REQ_(VIEW_NEXT, "Move focus to next view"), \
+ REQ_(VIEW_CLOSE, "Close the current view"), \
+ REQ_(QUIT, "Close all views and quit"), \
+ \
+ REQ_GROUP("Cursor navigation") \
+ REQ_(MOVE_UP, "Move cursor one line up"), \
+ REQ_(MOVE_DOWN, "Move cursor one line down"), \
+ REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
+ REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
+ REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
+ REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
+ \
+ REQ_GROUP("Scrolling") \
+ REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
+ REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
+ REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
+ REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
+ \
+ REQ_GROUP("Misc") \
+ REQ_(PROMPT, "Bring up the prompt"), \
+ REQ_(SCREEN_UPDATE, "Update the screen"), \
+ REQ_(SCREEN_REDRAW, "Redraw the screen"), \
+ REQ_(SCREEN_RESIZE, "Resize the screen"), \
+ REQ_(SHOW_VERSION, "Show version information"), \
+ REQ_(STOP_LOADING, "Stop all loading views"), \
+ REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
+ REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"),
+
+
+/* User action requests. */
+enum request {
+#define REQ_GROUP(help)
+#define REQ_(req, help) REQ_##req
+
+ /* Offset all requests to avoid conflicts with ncurses getch values. */
+ REQ_OFFSET = KEY_MAX + 1,
+ REQ_INFO
+
+#undef REQ_GROUP
+#undef REQ_
+};
+
+struct request_info {
+ enum request request;
+ char *help;
+};
+
+static struct request_info req_info[] = {
+#define REQ_GROUP(help) { 0, (help) },
+#define REQ_(req, help) { REQ_##req, (help) }
+ REQ_INFO
+#undef REQ_GROUP
+#undef REQ_
+};
+
+/*
+ * Options
+ */
static const char usage[] =
VERSION " (" __DATE__ ")\n"
/* Option and state variables. */
static bool opt_line_number = FALSE;
+static bool opt_rev_graph = TRUE;
static int opt_num_interval = NUMBER_INTERVAL;
static int opt_tab_size = TABSIZE;
static enum request opt_request = REQ_VIEW_MAIN;
static bool opt_utf8 = TRUE;
static FILE *opt_pipe = NULL;
+enum option_type {
+ OPT_NONE,
+ OPT_INT,
+};
+
+static bool
+check_option(char *opt, char short_name, char *name, enum option_type type, ...)
+{
+ va_list args;
+ char *value = "";
+ int *number;
+
+ if (opt[0] != '-')
+ return FALSE;
+
+ if (opt[1] == '-') {
+ int namelen = strlen(name);
+
+ opt += 2;
+
+ if (strncmp(opt, name, namelen))
+ return FALSE;
+
+ if (opt[namelen] == '=')
+ value = opt + namelen + 1;
+
+ } else {
+ if (!short_name || opt[1] != short_name)
+ return FALSE;
+ value = opt + 2;
+ }
+
+ va_start(args, type);
+ if (type == OPT_INT) {
+ number = va_arg(args, int *);
+ if (isdigit(*value))
+ *number = atoi(value);
+ }
+ va_end(args);
+
+ return TRUE;
+}
+
/* Returns the index of log or diff command or -1 to exit. */
static bool
parse_options(int argc, char *argv[])
for (i = 1; i < argc; i++) {
char *opt = argv[i];
- /**
- * -l::
- * Start up in log view using the internal log command.
- **/
if (!strcmp(opt, "-l")) {
opt_request = REQ_VIEW_LOG;
continue;
}
- /**
- * -d::
- * Start up in diff view using the internal diff command.
- **/
if (!strcmp(opt, "-d")) {
opt_request = REQ_VIEW_DIFF;
continue;
}
- /**
- * -n[INTERVAL], --line-number[=INTERVAL]::
- * Prefix line numbers in log and diff view.
- * Optionally, with interval different than each line.
- **/
- if (!strncmp(opt, "-n", 2) ||
- !strncmp(opt, "--line-number", 13)) {
- char *num = opt;
-
- if (opt[1] == 'n') {
- num = opt + 2;
-
- } else if (opt[STRING_SIZE("--line-number")] == '=') {
- num = opt + STRING_SIZE("--line-number=");
- }
-
- if (isdigit(*num))
- opt_num_interval = atoi(num);
-
+ if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) {
opt_line_number = TRUE;
continue;
}
- /**
- * -b[NSPACES], --tab-size[=NSPACES]::
- * Set the number of spaces tabs should be expanded to.
- **/
- if (!strncmp(opt, "-b", 2) ||
- !strncmp(opt, "--tab-size", 10)) {
- char *num = opt;
-
- if (opt[1] == 'b') {
- num = opt + 2;
-
- } else if (opt[STRING_SIZE("--tab-size")] == '=') {
- num = opt + STRING_SIZE("--tab-size=");
- }
-
- if (isdigit(*num))
- opt_tab_size = MIN(atoi(num), TABSIZE);
+ if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) {
+ opt_tab_size = MIN(opt_tab_size, TABSIZE);
continue;
}
- /**
- * -v, --version::
- * Show version and exit.
- **/
- if (!strcmp(opt, "-v") ||
- !strcmp(opt, "--version")) {
+ if (check_option(opt, 'v', "version", OPT_NONE)) {
printf("tig version %s\n", VERSION);
return FALSE;
}
- /**
- * -h, --help::
- * Show help message and exit.
- **/
- if (!strcmp(opt, "-h") ||
- !strcmp(opt, "--help")) {
+ if (check_option(opt, 'h', "help", OPT_NONE)) {
printf(usage);
return FALSE;
}
- /**
- * \--::
- * End of tig(1) options. Useful when specifying command
- * options for the main view. Example:
- *
- * $ tig -- --since=1.month
- **/
if (!strcmp(opt, "--")) {
i++;
break;
}
- /**
- * log [git log options]::
- * Open log view using the given git log options.
- *
- * diff [git diff options]::
- * Open diff view using the given git diff options.
- *
- * show [git show options]::
- * Open diff view using the given git show options.
- **/
if (!strcmp(opt, "log") ||
!strcmp(opt, "diff") ||
!strcmp(opt, "show")) {
break;
}
- /**
- * [git log options]::
- * tig(1) will stop the option parsing when the first
- * command line parameter not starting with "-" is
- * encountered. All options including this one will be
- * passed to git log when loading the main view.
- * This makes it possible to say:
- *
- * $ tig tag-1.0..HEAD
- **/
if (opt[0] && opt[0] != '-')
break;
- die("unknown command '%s'", opt);
+ die("unknown option '%s'\n\n%s", opt, usage);
}
if (!isatty(STDIN_FILENO)) {
}
-/**
- * ENVIRONMENT VARIABLES
- * ---------------------
- * TIG_LS_REMOTE::
- * Set command for retrieving all repository references. The command
- * should output data in the same format as git-ls-remote(1).
- **/
-
-#define TIG_LS_REMOTE \
- "git ls-remote . 2>/dev/null"
-
-/**
- * TIG_DIFF_CMD::
- * The command used for the diff view. By default, git show is used
- * as a backend.
- *
- * TIG_LOG_CMD::
- * The command used for the log view. If you prefer to have both
- * author and committer shown in the log view be sure to pass
- * `--pretty=fuller` to git log.
- *
- * TIG_MAIN_CMD::
- * The command used for the main view. Note, you must always specify
- * the option: `--pretty=raw` since the main view parser expects to
- * read that format.
- **/
-
-#define TIG_DIFF_CMD \
- "git show --patch-with-stat --find-copies-harder -B -C %s"
-
-#define TIG_LOG_CMD \
- "git log --cc --stat -n100 %s"
-
-#define TIG_MAIN_CMD \
- "git log --topo-order --stat --pretty=raw %s"
-
-/* ... silently ignore that the following are also exported. */
-
-#define TIG_HELP_CMD \
- "man tig 2>/dev/null"
-
-#define TIG_PAGER_CMD \
- ""
-
-
-/**
- * FILES
- * -----
- * '~/.tigrc'::
- * User configuration file. See tigrc(5) for examples.
- *
- * '.git/config'::
- * Repository config file. Read on startup with the help of
- * git-repo-config(1).
- **/
-
-static struct int_map color_map[] = {
-#define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
- COLOR_MAP(DEFAULT),
- COLOR_MAP(BLACK),
- COLOR_MAP(BLUE),
- COLOR_MAP(CYAN),
- COLOR_MAP(GREEN),
- COLOR_MAP(MAGENTA),
- COLOR_MAP(RED),
- COLOR_MAP(WHITE),
- COLOR_MAP(YELLOW),
-};
-
-static struct int_map attr_map[] = {
-#define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
- ATTR_MAP(NORMAL),
- ATTR_MAP(BLINK),
- ATTR_MAP(BOLD),
- ATTR_MAP(DIM),
- ATTR_MAP(REVERSE),
- ATTR_MAP(STANDOUT),
- ATTR_MAP(UNDERLINE),
-};
+/*
+ * Line-oriented content detection.
+ */
#define LINE_INFO \
LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
-
-/*
- * Line-oriented content detection.
- */
-
enum line_type {
#define LINE(type, line, fg, bg, attr) \
LINE_##type
* User config file handling.
*/
-#define set_color(color, name, namelen) \
- set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, namelen)
+static struct int_map color_map[] = {
+#define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
+ COLOR_MAP(DEFAULT),
+ COLOR_MAP(BLACK),
+ COLOR_MAP(BLUE),
+ COLOR_MAP(CYAN),
+ COLOR_MAP(GREEN),
+ COLOR_MAP(MAGENTA),
+ COLOR_MAP(RED),
+ COLOR_MAP(WHITE),
+ COLOR_MAP(YELLOW),
+};
+
+#define set_color(color, name) \
+ set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
+
+static struct int_map attr_map[] = {
+#define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
+ ATTR_MAP(NORMAL),
+ ATTR_MAP(BLINK),
+ ATTR_MAP(BOLD),
+ ATTR_MAP(DIM),
+ ATTR_MAP(REVERSE),
+ ATTR_MAP(STANDOUT),
+ ATTR_MAP(UNDERLINE),
+};
-#define set_attribute(attr, name, namelen) \
- set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, namelen)
+#define set_attribute(attr, name) \
+ set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
static int config_lineno;
static bool config_errors;
static char *config_msg;
+/* Reads
+ *
+ * object fgcolor bgcolor [attr]
+ *
+ * from the value string. */
static int
-set_option(char *opt, int optlen, char *value, int valuelen)
+set_option_color(int argc, char *argv[])
{
- /* Reads: "color" object fgcolor bgcolor [attr] */
- if (!strcmp(opt, "color")) {
- struct line_info *info;
-
- value = chomp_string(value);
- valuelen = strcspn(value, " \t");
- info = get_line_info(value, valuelen);
- if (!info) {
- config_msg = "Unknown color name";
- return ERR;
- }
+ struct line_info *info;
- value = chomp_string(value + valuelen);
- valuelen = strcspn(value, " \t");
- if (set_color(&info->fg, value, valuelen) == ERR) {
- config_msg = "Unknown color";
- return ERR;
- }
+ if (argc != 3 && argc != 4) {
+ config_msg = "Wrong number of arguments given to color command";
+ return ERR;
+ }
- value = chomp_string(value + valuelen);
- valuelen = strcspn(value, " \t");
- if (set_color(&info->bg, value, valuelen) == ERR) {
- config_msg = "Unknown color";
- return ERR;
- }
+ info = get_line_info(argv[0], strlen(argv[0]));
+ if (!info) {
+ config_msg = "Unknown color name";
+ return ERR;
+ }
- value = chomp_string(value + valuelen);
- if (*value &&
- set_attribute(&info->attr, value, strlen(value)) == ERR) {
- config_msg = "Unknown attribute";
- return ERR;
- }
+ if (set_color(&info->fg, argv[1]) == ERR) {
+ config_msg = "Unknown color";
+ return ERR;
+ }
- return OK;
+ if (set_color(&info->bg, argv[2]) == ERR) {
+ config_msg = "Unknown color";
+ return ERR;
+ }
+
+ if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
+ config_msg = "Unknown attribute";
+ return ERR;
+ }
+
+ return OK;
+}
+
+static int
+set_option(char *opt, char *value)
+{
+ char *argv[16];
+ int valuelen;
+ int argc = 0;
+
+ /* Tokenize */
+ while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
+ argv[argc++] = value;
+
+ value += valuelen;
+ if (!*value)
+ break;
+
+ *value++ = 0;
+ while (isspace(*value))
+ value++;
}
+ if (!strcmp(opt, "color"))
+ return set_option_color(argc, argv);
+
return ERR;
}
value[valuelen] = 0;
}
- if (set_option(opt, optlen, value, valuelen) == ERR) {
+ if (set_option(opt, value) == ERR) {
fprintf(stderr, "Error on line %d, near '%.*s' option: %s\n",
config_lineno, optlen, opt, config_msg);
config_errors = TRUE;
config_lineno = 0;
config_errors = FALSE;
- if (!home ||
- snprintf(buf, sizeof(buf), "%s/.tigrc", home) >= sizeof(buf))
+ if (!home || !string_format(buf, "%s/.tigrc", home))
return ERR;
/* It's ok that the file doesn't exist. */
/* Buffering */
unsigned long lines; /* Total number of lines */
struct line *line; /* Line index */
+ unsigned long line_size;/* Total number of allocated lines */
unsigned int digits; /* Number of digits in the lines member. */
/* Loading */
/* Draw one line; @lineno must be < view->height. */
bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
/* Read one line; updates view->line. */
- bool (*read)(struct view *view, struct line *prev, char *data);
+ bool (*read)(struct view *view, char *data);
/* Depending on view, change display based on current line. */
bool (*enter)(struct view *view, struct line *line);
};
wprintw(view->title, "[%s]", view->name);
if (view->lines || view->pipe) {
+ unsigned int view_lines = view->offset + view->height;
unsigned int lines = view->lines
- ? (view->lineno + 1) * 100 / view->lines
+ ? MIN(view_lines, view->lines) * 100 / view->lines
: 0;
wprintw(view->title, " - %s %d of %d (%d%%)",
} else {
const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
- if (snprintf(view->cmd, sizeof(view->cmd), format,
- id, id, id, id, id) >= sizeof(view->cmd))
+ if (!string_format(view->cmd, format, id, id, id, id, id))
return FALSE;
}
return TRUE;
}
+static struct line *
+realloc_lines(struct view *view, size_t line_size)
+{
+ struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size);
+
+ if (!tmp)
+ return NULL;
+
+ view->line = tmp;
+ view->line_size = line_size;
+ return view->line;
+}
+
static bool
update_view(struct view *view)
{
char buffer[BUFSIZ];
char *line;
- struct line *tmp;
/* The number of lines to read. If too low it will cause too much
* redrawing (and possible flickering), if too high responsiveness
* will suffer. */
if (view->offset + view->height >= view->lines)
redraw_from = view->lines - view->offset;
- tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines));
- if (!tmp)
+ if (!realloc_lines(view, view->lines + lines))
goto alloc_error;
- view->line = tmp;
-
while ((line = fgets(buffer, sizeof(buffer), view->pipe))) {
int linelen = strlen(line);
- struct line *prev = view->lines
- ? &view->line[view->lines - 1]
- : NULL;
-
if (linelen)
line[linelen - 1] = 0;
- if (!view->ops->read(view, prev, line))
+ if (!view->ops->read(view, line))
goto alloc_error;
if (lines-- == 1)
goto end;
} else if (feof(view->pipe)) {
- if (view == VIEW(REQ_VIEW_HELP)) {
- const char *msg = TIG_HELP;
-
- if (view->lines == 0) {
- /* Slightly ugly, but abusing view->ref keeps
- * the error message. */
- string_copy(view->ref, "No help available");
- msg = "The tig(1) manpage is not installed";
- }
-
- report("%s", msg);
- goto end;
- }
-
report("");
goto end;
}
return;
}
- if ((reload || strcmp(view->vid, view->id)) &&
- !begin_update(view)) {
+ if (view == VIEW(REQ_VIEW_HELP)) {
+ load_help_page();
+
+ } else if ((reload || strcmp(view->vid, view->id)) &&
+ !begin_update(view)) {
report("Failed to load %s view", view->name);
return;
}
if (split) {
- display[current_view + 1] = view;
+ display[1] = view;
if (!backgrounded)
- current_view++;
+ current_view = 1;
} else {
/* Maximize the current view. */
memset(display, 0, sizeof(display));
report("");
} else {
redraw_view(view);
- if (view == VIEW(REQ_VIEW_HELP))
- report("%s", TIG_HELP);
- else
- report("");
+ report("");
}
/* If the view is backgrounded the above calls to report()
report("");
break;
}
- case REQ_TOGGLE_LINE_NUMBERS:
+ case REQ_TOGGLE_LINENO:
opt_line_number = !opt_line_number;
redraw_display();
break;
+ case REQ_TOGGLE_REV_GRAPH:
+ opt_rev_graph = !opt_rev_graph;
+ redraw_display();
+ break;
+
case REQ_PROMPT:
/* Always reload^Wrerun commands from the prompt. */
open_view(view, opt_request, OPEN_RELOAD);
return TRUE;
}
+static void
+add_pager_refs(struct view *view, struct line *line)
+{
+ char buf[1024];
+ char *data = line->data;
+ struct ref **refs;
+ int bufpos = 0, refpos = 0;
+ const char *sep = "Refs: ";
+
+ assert(line->type == LINE_COMMIT);
+
+ refs = get_refs(data + STRING_SIZE("commit "));
+ if (!refs)
+ return;
+
+ do {
+ struct ref *ref = refs[refpos];
+ char *fmt = ref->tag ? "%s[%s]" : "%s%s";
+
+ if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
+ return;
+ sep = ", ";
+ } while (refs[refpos++]->next);
+
+ if (!realloc_lines(view, view->line_size + 1))
+ return;
+
+ line = &view->line[view->lines];
+ line->data = strdup(buf);
+ if (!line->data)
+ return;
+
+ line->type = LINE_PP_REFS;
+ view->lines++;
+}
+
static bool
-pager_read(struct view *view, struct line *prev, char *line)
+pager_read(struct view *view, char *data)
{
- /* Compress empty lines in the help view. */
- if (view == VIEW(REQ_VIEW_HELP) &&
- !*line && prev && !*((char *) prev->data))
- return TRUE;
+ struct line *line = &view->line[view->lines];
- view->line[view->lines].data = strdup(line);
- if (!view->line[view->lines].data)
+ line->data = strdup(data);
+ if (!line->data)
return FALSE;
- view->line[view->lines].type = get_line_type(line);
-
+ line->type = get_line_type(line->data);
view->lines++;
+
+ if (line->type == LINE_COMMIT &&
+ (view == VIEW(REQ_VIEW_DIFF) ||
+ view == VIEW(REQ_VIEW_LOG)))
+ add_pager_refs(view, line);
+
return TRUE;
}
*/
struct commit {
- char id[41]; /* SHA1 ID. */
- char title[75]; /* The first line of the commit message. */
- char author[75]; /* The author of the commit. */
- struct tm time; /* Date from the author ident. */
- struct ref **refs; /* Repository references; tags & branch heads. */
+ char id[41]; /* SHA1 ID. */
+ char title[75]; /* First line of the commit message. */
+ char author[75]; /* Author of the commit. */
+ struct tm time; /* Date from the author ident. */
+ struct ref **refs; /* Repository references. */
+ chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
+ size_t graph_size; /* The width of the graph array. */
};
static bool
if (type != LINE_CURSOR)
wattrset(view->win, A_NORMAL);
- mvwaddch(view->win, lineno, col, ACS_LTEE);
- wmove(view->win, lineno, col + 2);
- col += 2;
+ if (opt_rev_graph && commit->graph_size) {
+ size_t i;
+
+ wmove(view->win, lineno, col);
+ /* Using waddch() instead of waddnstr() ensures that
+ * they'll be rendered correctly for the cursor line. */
+ for (i = 0; i < commit->graph_size; i++)
+ waddch(view->win, commit->graph[i]);
+
+ col += commit->graph_size + 1;
+ }
+
+ wmove(view->win, lineno, col);
if (commit->refs) {
size_t i = 0;
/* Reads git log --pretty=raw output and parses it into the commit struct. */
static bool
-main_read(struct view *view, struct line *prev, char *line)
+main_read(struct view *view, char *line)
{
enum line_type type = get_line_type(line);
- struct commit *commit;
+ struct commit *commit = view->lines
+ ? view->line[view->lines - 1].data : NULL;
switch (type) {
case LINE_COMMIT:
view->line[view->lines++].data = commit;
string_copy(commit->id, line);
commit->refs = get_refs(commit->id);
+ commit->graph[commit->graph_size++] = ACS_LTEE;
break;
case LINE_AUTHOR:
char *ident = line + STRING_SIZE("author ");
char *end = strchr(ident, '<');
- if (!prev)
+ if (!commit)
break;
- commit = prev->data;
-
if (end) {
for (; end > ident && isspace(end[-1]); end--) ;
*end = 0;
break;
}
default:
- if (!prev)
+ if (!commit)
break;
- commit = prev->data;
-
/* Fill in the commit title if it has not already been set. */
if (commit->title[0])
break;
{ 'l', REQ_VIEW_LOG },
{ 'p', REQ_VIEW_PAGER },
{ 'h', REQ_VIEW_HELP },
+ { '?', REQ_VIEW_HELP },
/* View manipulation */
{ 'q', REQ_VIEW_CLOSE },
{ 'z', REQ_STOP_LOADING },
{ 'v', REQ_SHOW_VERSION },
{ 'r', REQ_SCREEN_REDRAW },
- { 'n', REQ_TOGGLE_LINE_NUMBERS },
+ { 'n', REQ_TOGGLE_LINENO },
+ { 'g', REQ_TOGGLE_REV_GRAPH},
{ ':', REQ_PROMPT },
/* wgetch() with nodelay() enabled returns ERR when there's no input. */
return (enum request) key;
}
+struct key {
+ char *name;
+ int value;
+};
+
+static struct key key_table[] = {
+ { "Enter", KEY_RETURN },
+ { "Space", ' ' },
+ { "Backspace", KEY_BACKSPACE },
+ { "Tab", KEY_TAB },
+ { "Escape", KEY_ESC },
+ { "Left", KEY_LEFT },
+ { "Right", KEY_RIGHT },
+ { "Up", KEY_UP },
+ { "Down", KEY_DOWN },
+ { "Insert", KEY_IC },
+ { "Delete", KEY_DC },
+ { "Home", KEY_HOME },
+ { "End", KEY_END },
+ { "PageUp", KEY_PPAGE },
+ { "PageDown", KEY_NPAGE },
+ { "F1", KEY_F(1) },
+ { "F2", KEY_F(2) },
+ { "F3", KEY_F(3) },
+ { "F4", KEY_F(4) },
+ { "F5", KEY_F(5) },
+ { "F6", KEY_F(6) },
+ { "F7", KEY_F(7) },
+ { "F8", KEY_F(8) },
+ { "F9", KEY_F(9) },
+ { "F10", KEY_F(10) },
+ { "F11", KEY_F(11) },
+ { "F12", KEY_F(12) },
+};
+
+static char *
+get_key(enum request request)
+{
+ static char buf[BUFSIZ];
+ static char key_char[] = "'X'";
+ int pos = 0;
+ char *sep = " ";
+ int i;
+
+ buf[pos] = 0;
+
+ for (i = 0; i < ARRAY_SIZE(keymap); i++) {
+ char *seq = NULL;
+ int key;
+
+ if (keymap[i].request != request)
+ continue;
+
+ for (key = 0; key < ARRAY_SIZE(key_table); key++)
+ if (key_table[key].value == keymap[i].alias)
+ seq = key_table[key].name;
+
+ if (seq == NULL &&
+ keymap[i].alias < 127 &&
+ isprint(keymap[i].alias)) {
+ key_char[1] = (char) keymap[i].alias;
+ seq = key_char;
+ }
+
+ if (!seq)
+ seq = "'?'";
+
+ if (!string_format_from(buf, &pos, "%s%s", sep, seq))
+ return "Too many keybindings!";
+ sep = ", ";
+ }
+
+ return buf;
+}
+
+static void load_help_page(void)
+{
+ char buf[BUFSIZ];
+ struct view *view = VIEW(REQ_VIEW_HELP);
+ int lines = ARRAY_SIZE(req_info) + 2;
+ int i;
+
+ if (view->lines > 0)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(req_info); i++)
+ if (!req_info[i].request)
+ lines++;
+
+ view->line = calloc(lines, sizeof(*view->line));
+ if (!view->line) {
+ report("Allocation failure");
+ return;
+ }
+
+ pager_read(view, "Quick reference for tig keybindings:");
+
+ for (i = 0; i < ARRAY_SIZE(req_info); i++) {
+ char *key;
+
+ if (!req_info[i].request) {
+ pager_read(view, "");
+ pager_read(view, req_info[i].help);
+ continue;
+ }
+
+ key = get_key(req_info[i].request);
+ if (!string_format(buf, "%-25s %s", key, req_info[i].help))
+ continue;
+
+ pager_read(view, buf);
+ }
+}
+
/*
* Unicode / UTF-8 handling
{
struct ref *ref;
bool tag = FALSE;
- bool tag_commit = FALSE;
- /* Commits referenced by tags has "^{}" appended. */
- if (name[namelen - 1] == '}') {
+ if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
+ /* Commits referenced by tags has "^{}" appended. */
+ if (name[namelen - 1] != '}')
+ return OK;
+
while (namelen > 0 && name[namelen] != '^')
namelen--;
- if (namelen > 0)
- tag_commit = TRUE;
- name[namelen] = 0;
- }
- if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
- if (!tag_commit)
- return OK;
- name += STRING_SIZE("refs/tags/");
tag = TRUE;
+ namelen -= STRING_SIZE("refs/tags/");
+ name += STRING_SIZE("refs/tags/");
} else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
- name += STRING_SIZE("refs/heads/");
+ namelen -= STRING_SIZE("refs/heads/");
+ name += STRING_SIZE("refs/heads/");
} else if (!strcmp(name, "HEAD")) {
return OK;
return ERR;
ref = &refs[refs_size++];
- ref->name = strdup(name);
+ ref->name = malloc(namelen + 1);
if (!ref->name)
return ERR;
+ strncpy(ref->name, name, namelen);
+ ref->name[namelen] = 0;
ref->tag = tag;
string_copy(ref->id, id);
static int
read_repo_config_option(char *name, int namelen, char *value, int valuelen)
{
- if (!strcmp(name, "i18n.commitencoding")) {
+ if (!strcmp(name, "i18n.commitencoding"))
string_copy(opt_encoding, value);
- }
return OK;
}
* Main
*/
-#if __GNUC__ >= 3
-#define __NORETURN __attribute__((__noreturn__))
-#else
-#define __NORETURN
-#endif
-
static void __NORETURN
quit(int sig)
{
return 0;
}
-
-/**
- * include::BUGS[]
- *
- * COPYRIGHT
- * ---------
- * Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * SEE ALSO
- * --------
- * - link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)],
- * - link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)]
- *
- * Other git repository browsers:
- *
- * - gitk(1)
- * - qgit(1)
- * - gitview(1)
- *
- * Sites:
- *
- * include::SITES[]
- **/