/* 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 version 2 as
- * published by the Free Software Foundation.
+ * 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
static void 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))
/* 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 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 */
static struct ref **get_refs(char *id);
+struct int_map {
+ const char *name;
+ int namelen;
+ int value;
+};
+
+static int
+set_from_int_map(struct int_map *map, size_t map_size,
+ int *value, const char *name, int namelen)
+{
+
+ int i;
+
+ for (i = 0; i < map_size; i++)
+ if (namelen == map[i].namelen &&
+ !strncasecmp(name, map[i].name, namelen)) {
+ *value = map[i].value;
+ return OK;
+ }
+
+ return ERR;
+}
+
/*
* String helpers
#define string_copy(dst, src) \
string_ncopy(dst, src, sizeof(dst))
+static char *
+chomp_string(char *name)
+{
+ int namelen;
+
+ while (isspace(*name))
+ name++;
+
+ namelen = strlen(name) - 1;
+ while (namelen > 0 && isspace(name[namelen]))
+ name[namelen--] = 0;
+
+ return name;
+}
+
/* Shell quoting
*
}
+/*
+ * 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"),
+
+
+/* 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
* -------
" -l Start up in log view\n"
" -d Start up in diff view\n"
" -n[I], --line-number[=I] Show line numbers with given interval\n"
-" -t[N], --tab-size[=N] Set number of spaces for tab expansion\n"
+" -b[N], --tab-size[=N] Set number of spaces for tab expansion\n"
" -- Mark end of tig options\n"
" -v, --version Show version and exit\n"
" -h, --help Show help message and exit\n";
static int opt_tab_size = TABSIZE;
static enum request opt_request = REQ_VIEW_MAIN;
static char opt_cmd[SIZEOF_CMD] = "";
+static char opt_encoding[20] = "";
+static bool opt_utf8 = TRUE;
static FILE *opt_pipe = NULL;
/* Returns the index of log or diff command or -1 to exit. */
}
/**
- * -t[NSPACES], --tab-size[=NSPACES]::
+ * -b[NSPACES], --tab-size[=NSPACES]::
* Set the number of spaces tabs should be expanded to.
**/
- if (!strncmp(opt, "-t", 2) ||
+ if (!strncmp(opt, "-b", 2) ||
!strncmp(opt, "--tab-size", 10)) {
char *num = opt;
- if (opt[1] == 't') {
+ if (opt[1] == 'b') {
num = opt + 2;
} else if (opt[STRING_SIZE("--tab-size")] == '=') {
}
if (!isatty(STDIN_FILENO)) {
- /**
- * Pager mode
- * ~~~~~~~~~~
- * If stdin is a pipe, any log or diff options will be ignored and the
- * pager view will be opened loading data from stdin. The pager mode
- * can be used for colorizing output from various git commands.
- *
- * Example on how to colorize the output of git-show(1):
- *
- * $ git show | tig
- **/
opt_request = REQ_VIEW_PAGER;
opt_pipe = stdin;
} else if (i < argc) {
size_t buf_size;
- /**
- * Git command options
- * ~~~~~~~~~~~~~~~~~~~
- * All git command options specified on the command line will
- * be passed to the given command and all will be shell quoted
- * before they are passed to the shell.
- *
- * NOTE: If you specify options for the main view, you should
- * not use the `--pretty` option as this option will be set
- * automatically to the format expected by the main view.
- *
- * Example on how to open the log view and show both author and
- * committer information:
- *
- * $ tig log --pretty=fuller
- *
- * See the <<refspec, "Specifying revisions">> section below
- * for an introduction to revision options supported by the git
- * commands. For details on specific git command options, refer
- * to the man page of the command in question.
- **/
-
if (opt_request == REQ_VIEW_MAIN)
/* XXX: This is vulnerable to the user overriding
* options required for the main view parser. */
}
+ if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
+ opt_utf8 = FALSE;
+
return TRUE;
}
/**
* ENVIRONMENT VARIABLES
* ---------------------
- * Several options related to the interface with git can be configured
- * via environment options.
- *
- * Repository references
- * ~~~~~~~~~~~~~~~~~~~~~
- * Commits that are referenced by tags and branch heads will be marked
- * by the reference name surrounded by '[' and ']':
- *
- * 2006-03-26 19:42 Petr Baudis | [cogito-0.17.1] Cogito 0.17.1
- *
- * If you want to filter out certain directories under `.git/refs/`, say
- * `tmp` you can do it by setting the following variable:
- *
- * $ TIG_LS_REMOTE="git ls-remote . | sed /\/tmp\//d" tig
- *
- * Or set the variable permanently in your environment.
- *
* TIG_LS_REMOTE::
* Set command for retrieving all repository references. The command
* should output data in the same format as git-ls-remote(1).
"git ls-remote . 2>/dev/null"
/**
- * [[view-commands]]
- * View commands
- * ~~~~~~~~~~~~~
- * It is possible to alter which commands are used for the different views.
- * If for example you prefer commits in the main view to be sorted by date
- * and only show 500 commits, use:
- *
- * $ TIG_MAIN_CMD="git log --date-order -n500 --pretty=raw %s" tig
- *
- * Or set the variable permanently in your environment.
- *
- * Notice, how `%s` is used to specify the commit reference. There can
- * be a maximum of 5 `%s` ref specifications.
- *
* TIG_DIFF_CMD::
* The command used for the diff view. By default, git show is used
* as a backend.
/* ... silently ignore that the following are also exported. */
#define TIG_HELP_CMD \
- "man tig 2>/dev/null"
+ ""
#define TIG_PAGER_CMD \
""
-/*
- * Line-oriented content detection.
- */
+/**
+ * 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),
+};
#define LINE_INFO \
-/* Line type String to match Foreground Background Attributes
- * --------- --------------- ---------- ---------- ---------- */ \
-/* Diff markup */ \
-LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
-LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
+LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
-LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
-LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
-LINE(DIFF_COPY, "copy ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
-LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
-LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
-LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
-/* Pretty print commit header */ \
+LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
+LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
+LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(PP_MERGE, "Merge: ", COLOR_BLUE, 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), \
-/* Raw commit header */ \
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(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
-/* Misc */ \
-LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
-/* UI colors */ \
LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
-LINE(MAIN_REF, "", COLOR_CYAN, 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) \
};
struct line_info {
+ const char *name; /* Option name. */
+ int namelen; /* Size of option name. */
const char *line; /* The start of line to match. */
int linelen; /* Size of string to match. */
int fg, bg, attr; /* Color and text attributes for the lines. */
static struct line_info line_info[] = {
#define LINE(type, line, fg, bg, attr) \
- { (line), STRING_SIZE(line), (fg), (bg), (attr) }
+ { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
LINE_INFO
#undef LINE
};
return COLOR_PAIR(type) | line_info[type].attr;
}
+static struct line_info *
+get_line_info(char *name, int namelen)
+{
+ enum line_type type;
+ int i;
+
+ /* Diff-Header -> DIFF_HEADER */
+ for (i = 0; i < namelen; i++) {
+ if (name[i] == '-')
+ name[i] = '_';
+ else if (name[i] == '.')
+ name[i] = '_';
+ }
+
+ for (type = 0; type < ARRAY_SIZE(line_info); type++)
+ if (namelen == line_info[type].namelen &&
+ !strncasecmp(line_info[type].name, name, namelen))
+ return &line_info[type];
+
+ return NULL;
+}
+
static void
init_colors(void)
{
};
-/**
+/*
+ * User config file handling.
+ */
+
+#define set_color(color, name, namelen) \
+ set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, namelen)
+
+#define set_attribute(attr, name, namelen) \
+ set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, namelen)
+
+static int config_lineno;
+static bool config_errors;
+static char *config_msg;
+
+static int
+set_option(char *opt, int optlen, char *value, int valuelen)
+{
+ /* 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;
+ }
+
+ value = chomp_string(value + valuelen);
+ valuelen = strcspn(value, " \t");
+ if (set_color(&info->fg, value, valuelen) == ERR) {
+ config_msg = "Unknown color";
+ 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;
+ }
+
+ value = chomp_string(value + valuelen);
+ if (*value &&
+ set_attribute(&info->attr, value, strlen(value)) == ERR) {
+ config_msg = "Unknown attribute";
+ return ERR;
+ }
+
+ return OK;
+ }
+
+ return ERR;
+}
+
+static int
+read_option(char *opt, int optlen, char *value, int valuelen)
+{
+ config_lineno++;
+ config_msg = "Internal error";
+
+ optlen = strcspn(opt, "#;");
+ if (optlen == 0) {
+ /* The whole line is a commend or empty. */
+ return OK;
+
+ } else if (opt[optlen] != 0) {
+ /* Part of the option name is a comment, so the value part
+ * should be ignored. */
+ valuelen = 0;
+ opt[optlen] = value[valuelen] = 0;
+ } else {
+ /* Else look for comment endings in the value. */
+ valuelen = strcspn(value, "#;");
+ value[valuelen] = 0;
+ }
+
+ if (set_option(opt, optlen, value, valuelen) == ERR) {
+ fprintf(stderr, "Error on line %d, near '%.*s' option: %s\n",
+ config_lineno, optlen, opt, config_msg);
+ config_errors = TRUE;
+ }
+
+ /* Always keep going if errors are encountered. */
+ return OK;
+}
+
+static int
+load_options(void)
+{
+ char *home = getenv("HOME");
+ char buf[1024];
+ FILE *file;
+
+ config_lineno = 0;
+ config_errors = FALSE;
+
+ if (!home ||
+ snprintf(buf, sizeof(buf), "%s/.tigrc", home) >= sizeof(buf))
+ return ERR;
+
+ /* It's ok that the file doesn't exist. */
+ file = fopen(buf, "r");
+ if (!file)
+ return OK;
+
+ if (read_properties(file, " \t", read_option) == ERR ||
+ config_errors == TRUE)
+ fprintf(stderr, "Errors while loading %s.\n", buf);
+
+ return OK;
+}
+
+
+/*
* The viewer
- * ----------
- * The display consists of a status window on the last line of the screen and
- * one or more views. The default is to only show one view at the time but it
- * is possible to split both the main and log view to also show the commit
- * diff.
- *
- * If you are in the log view and press 'Enter' when the current line is a
- * commit line, such as:
- *
- * commit 4d55caff4cc89335192f3e566004b4ceef572521
- *
- * You will split the view so that the log view is displayed in the top window
- * and the diff view in the bottom window. You can switch between the two
- * views by pressing 'Tab'. To maximize the log view again, simply press 'l'.
- **/
+ */
struct view;
struct view_ops;
#define displayed_views() (display[1] != NULL ? 2 : 1)
-/**
- * Current head and commit ID
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~
- * The viewer keeps track of both what head and commit ID you are currently
- * viewing. The commit ID will follow the cursor line and change everytime time
- * you highlight a different commit. Whenever you reopen the diff view it
- * will be reloaded, if the commit ID changed.
- *
- * The head ID is used when opening the main and log view to indicate from
- * what revision to show history.
- **/
-
+/* Current head and commit ID */
static char ref_commit[SIZEOF_REF] = "HEAD";
static char ref_head[SIZEOF_REF] = "HEAD";
#define VIEW_(id, name, ops, ref) \
VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops)
-/**
- * Views
- * ~~~~~
- * tig(1) presents various 'views' of a repository. Each view is based on output
- * from an external command, most often 'git log', 'git diff', or 'git show'.
- *
- * The main view::
- * Is the default view, and it shows a one line summary of each commit
- * in the chosen list of revisions. The summary includes commit date,
- * author, and the first line of the log message. Additionally, any
- * repository references, such as tags, will be shown.
- *
- * The log view::
- * Presents a more rich view of the revision log showing the whole log
- * message and the diffstat.
- *
- * The diff view::
- * Shows either the diff of the current working tree, that is, what
- * has changed since the last commit, or the commit diff complete
- * with log message, diffstat and diff.
- *
- * The pager view::
- * Is used for displaying both input from stdin and output from git
- * commands entered in the internal prompt.
- *
- * The help view::
- * Displays the information from the tig(1) man page. For the help view
- * to work you need to have the tig(1) man page installed.
- **/
static struct view views[] = {
VIEW_(MAIN, "main", &main_ops, ref_head),
}
-/**
- * Title windows
- * ~~~~~~~~~~~~~
- * Each view has a title window which shows the name of the view, current
- * commit ID if available, and where the view is positioned:
- *
- * [main] c622eefaa485995320bc743431bae0d497b1d875 - commit 1 of 61 (1%)
- *
- * By default, the title of the current view is highlighted using bold font.
- **/
-
static void
update_view_title(struct view *view)
{
wprintw(view->title, " %lds", secs);
}
-
+ wmove(view->title, 0, view->width - 1);
wrefresh(view->title);
}
wresize(view->win, view->height, view->width);
mvwin(view->win, offset, 0);
mvwin(view->title, offset + view->height, 0);
- wrefresh(view->win);
}
offset += view->height + 1;
}
}
+static void
+update_display_cursor(void)
+{
+ struct view *view = display[current_view];
+
+ /* Move the cursor to the right-most column of the cursor line.
+ *
+ * XXX: This could turn out to be a bit expensive, but it ensures that
+ * the cursor does not jump around. */
+ if (view->lines) {
+ wmove(view->win, view->lineno - view->offset, view->width - 1);
+ wrefresh(view->win);
+ }
+}
/*
* Navigation
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;
}
}
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));
}
if (prev && view != prev) {
- /* Continue loading split views in the background. */
- if (!split)
- end_update(prev);
- else if (!backgrounded)
+ if (split && !backgrounded) {
/* "Blur" the previous view. */
update_view_title(prev);
+ }
view->parent = prev;
}
- if (view->pipe) {
+ if (view == VIEW(REQ_VIEW_HELP))
+ load_help_page();
+
+ if (view->pipe && view->lines == 0) {
/* Clear the old view and let the incremental updating refill
* the screen. */
wclear(view->win);
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;
break;
case REQ_STOP_LOADING:
- foreach_view (view, i) {
+ for (i = 0; i < ARRAY_SIZE(views); i++) {
+ view = &views[i];
if (view->pipe)
- report("Stopped loaded the %s view", view->name),
+ report("Stopped loading the %s view", view->name),
end_update(view);
}
break;
return TRUE;
case REQ_VIEW_CLOSE:
- if (view->parent) {
+ /* XXX: Mark closed views by letting view->parent point to the
+ * view itself. Parents to closed view should never be
+ * followed. */
+ if (view->parent &&
+ view->parent->parent != view->parent) {
memset(display, 0, sizeof(display));
current_view = 0;
display[current_view] = view->parent;
- view->parent = NULL;
+ view->parent = view;
resize_display();
redraw_display();
break;
static bool
pager_read(struct view *view, struct line *prev, char *line)
{
- /* Compress empty lines in the help view. */
- if (view == VIEW(REQ_VIEW_HELP) &&
- !*line && prev && !*((char *) prev->data))
- return TRUE;
-
view->line[view->lines].data = strdup(line);
if (!view->line[view->lines].data)
return FALSE;
scroll_view(view, REQ_SCROLL_LINE_DOWN);
/* FIXME: A minor workaround. Scrolling the view will call report("")
- * but if we are scolling a non-current view this won't properly update
- * the view title. */
+ * but if we are scrolling a non-current view this won't properly
+ * update the view title. */
if (split)
update_view_title(view);
int col = 0;
size_t timelen;
size_t authorlen;
- int trimmed;
+ int trimmed = 1;
if (!*commit->author)
return FALSE;
if (type != LINE_CURSOR)
wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
- /* FIXME: Make this optional, and add i18n.commitEncoding support. */
- authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed);
+ if (opt_utf8) {
+ authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed);
+ } else {
+ authorlen = strlen(commit->author);
+ if (authorlen > AUTHOR_COLS - 2) {
+ authorlen = AUTHOR_COLS - 2;
+ trimmed = 1;
+ }
+ }
if (trimmed) {
waddnstr(view->win, commit->author, authorlen);
};
-/**
- * KEYS
- * ----
- * Below the default key bindings are shown.
- **/
+/*
+ * Keys
+ */
struct keymap {
int alias;
};
static struct keymap keymap[] = {
- /**
- * View switching
- * ~~~~~~~~~~~~~~
- * m::
- * Switch to main view.
- * d::
- * Switch to diff view.
- * l::
- * Switch to log view.
- * p::
- * Switch to pager view.
- * h::
- * Show man page.
- **/
+ /* View switching */
{ 'm', REQ_VIEW_MAIN },
{ 'd', REQ_VIEW_DIFF },
{ 'l', REQ_VIEW_LOG },
{ 'p', REQ_VIEW_PAGER },
{ 'h', REQ_VIEW_HELP },
+ { '?', REQ_VIEW_HELP },
- /**
- * View manipulation
- * ~~~~~~~~~~~~~~~~~
- * q::
- * Close view, if multiple views are open it will jump back to the
- * previous view in the view stack. If it is the last open view it
- * will quit. Use 'Q' to quit all views at once.
- * Enter::
- * This key is "context sensitive" depending on what view you are
- * currently in. When in log view on a commit line or in the main
- * view, split the view and show the commit diff. In the diff view
- * pressing Enter will simply scroll the view one line down.
- * Tab::
- * Switch to next view.
- * Up::
- * This key is "context sensitive" and will move the cursor one
- * line up. However, uf you opened a diff view from the main view
- * (split- or full-screen) it will change the cursor to point to
- * the previous commit in the main view and update the diff view
- * to display it.
- * Down::
- * Similar to 'Up' but will move down.
- **/
+ /* View manipulation */
{ 'q', REQ_VIEW_CLOSE },
{ KEY_TAB, REQ_VIEW_NEXT },
{ KEY_RETURN, REQ_ENTER },
{ KEY_UP, REQ_PREVIOUS },
{ KEY_DOWN, REQ_NEXT },
- /**
- * Cursor navigation
- * ~~~~~~~~~~~~~~~~~
- * j::
- * Move cursor one line up.
- * k::
- * Move cursor one line down.
- * PgUp::
- * b::
- * -::
- * Move cursor one page up.
- * PgDown::
- * Space::
- * Move cursor one page down.
- * Home::
- * Jump to first line.
- * End::
- * Jump to last line.
- **/
+ /* Cursor navigation */
{ 'k', REQ_MOVE_UP },
{ 'j', REQ_MOVE_DOWN },
{ KEY_HOME, REQ_MOVE_FIRST_LINE },
{ 'b', REQ_MOVE_PAGE_UP },
{ '-', REQ_MOVE_PAGE_UP },
- /**
- * Scrolling
- * ~~~~~~~~~
- * Insert::
- * Scroll view one line up.
- * Delete::
- * Scroll view one line down.
- * w::
- * Scroll view one page up.
- * s::
- * Scroll view one page down.
- **/
+ /* Scrolling */
{ KEY_IC, REQ_SCROLL_LINE_UP },
{ KEY_DC, REQ_SCROLL_LINE_DOWN },
{ 'w', REQ_SCROLL_PAGE_UP },
{ 's', REQ_SCROLL_PAGE_DOWN },
- /**
- * Misc
- * ~~~~
- * Q::
- * Quit.
- * r::
- * Redraw screen.
- * z::
- * Stop all background loading. This can be useful if you use
- * tig(1) in a repository with a long history without limiting
- * the revision log.
- * v::
- * Show version.
- * n::
- * Toggle line numbers on/off.
- * ':'::
- * Open prompt. This allows you to specify what git command
- * to run. Example:
- *
- * :log -p
- **/
+ /* Misc */
{ 'Q', REQ_QUIT },
{ 'z', REQ_STOP_LOADING },
{ 'v', REQ_SHOW_VERSION },
{ 'r', REQ_SCREEN_REDRAW },
- { 'n', REQ_TOGGLE_LINE_NUMBERS },
+ { 'n', REQ_TOGGLE_LINENO },
{ ':', 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 = "'?'";
+
+ pos += snprintf(buf + pos, sizeof(buf) - pos, "%s%s", sep, seq);
+ if (pos >= sizeof(buf))
+ 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, NULL, "Quick reference for tig keybindings:");
+
+ for (i = 0; i < ARRAY_SIZE(req_info); i++) {
+ char *key;
+
+ if (!req_info[i].request) {
+ pager_read(view, NULL, "");
+ pager_read(view, NULL, req_info[i].help);
+ continue;
+ }
+
+ key = get_key(req_info[i].request);
+ if (snprintf(buf, sizeof(buf), "%-25s %s", key, req_info[i].help)
+ >= sizeof(buf))
+ continue;
+
+ pager_read(view, NULL, buf);
+ }
+}
+
/*
* Unicode / UTF-8 handling
}
update_view_title(view);
-
- /* Move the cursor to the right-most column of the cursor line.
- *
- * XXX: This could turn out to be a bit expensive, but it ensures that
- * the cursor does not jump around. */
- if (view->lines) {
- wmove(view->win, view->lineno - view->offset, view->width - 1);
- wrefresh(view->win);
- }
+ update_display_cursor();
}
/* Controls when nodelay should be in effect when polling user input. */
}
static int
+read_ref(char *id, int idlen, char *name, int namelen)
+{
+ struct ref *ref;
+ bool tag = FALSE;
+ bool tag_commit = FALSE;
+
+ /* Commits referenced by tags has "^{}" appended. */
+ if (name[namelen - 1] == '}') {
+ 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;
+
+ } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
+ name += STRING_SIZE("refs/heads/");
+
+ } else if (!strcmp(name, "HEAD")) {
+ return OK;
+ }
+
+ refs = realloc(refs, sizeof(*refs) * (refs_size + 1));
+ if (!refs)
+ return ERR;
+
+ ref = &refs[refs_size++];
+ ref->name = strdup(name);
+ if (!ref->name)
+ return ERR;
+
+ ref->tag = tag;
+ string_copy(ref->id, id);
+
+ return OK;
+}
+
+static int
load_refs(void)
{
const char *cmd_env = getenv("TIG_LS_REMOTE");
const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
- FILE *pipe = popen(cmd, "r");
- char buffer[BUFSIZ];
- char *line;
- if (!pipe)
- return ERR;
+ return read_properties(popen(cmd, "r"), "\t", read_ref);
+}
- while ((line = fgets(buffer, sizeof(buffer), pipe))) {
- char *name = strchr(line, '\t');
- struct ref *ref;
- int namelen;
- bool tag = FALSE;
- bool tag_commit = FALSE;
+static int
+read_repo_config_option(char *name, int namelen, char *value, int valuelen)
+{
+ if (!strcmp(name, "i18n.commitencoding")) {
+ string_copy(opt_encoding, value);
+ }
- if (!name)
- continue;
+ return OK;
+}
- *name++ = 0;
- namelen = strlen(name) - 1;
+static int
+load_repo_config(void)
+{
+ return read_properties(popen("git repo-config --list", "r"),
+ "=", read_repo_config_option);
+}
- /* Commits referenced by tags has "^{}" appended. */
- if (name[namelen - 1] == '}') {
- while (namelen > 0 && name[namelen] != '^')
- namelen--;
- if (namelen > 0)
- tag_commit = TRUE;
- }
- name[namelen] = 0;
+static int
+read_properties(FILE *pipe, const char *separators,
+ int (*read_property)(char *, int, char *, int))
+{
+ char buffer[BUFSIZ];
+ char *name;
+ int state = OK;
- if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
- if (!tag_commit)
- continue;
- name += STRING_SIZE("refs/tags/");
- tag = TRUE;
+ if (!pipe)
+ return ERR;
- } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
- name += STRING_SIZE("refs/heads/");
+ while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
+ char *value;
+ size_t namelen;
+ size_t valuelen;
- } else if (!strcmp(name, "HEAD")) {
- continue;
- }
+ name = chomp_string(name);
+ namelen = strcspn(name, separators);
- refs = realloc(refs, sizeof(*refs) * (refs_size + 1));
- if (!refs)
- return ERR;
+ if (name[namelen]) {
+ name[namelen] = 0;
+ value = chomp_string(name + namelen + 1);
+ valuelen = strlen(value);
- ref = &refs[refs_size++];
- ref->tag = tag;
- ref->name = strdup(name);
- if (!ref->name)
- return ERR;
+ } else {
+ value = "";
+ valuelen = 0;
+ }
- string_copy(ref->id, line);
+ state = read_property(name, namelen, value, valuelen);
}
- if (ferror(pipe))
- return ERR;
+ if (state != ERR && ferror(pipe))
+ state = ERR;
pclose(pipe);
- return OK;
+ return state;
}
+
/*
* Main
*/
signal(SIGINT, quit);
+ if (load_options() == ERR)
+ die("Failed to load user config.");
+
+ /* Load the repo config file so options can be overwritten from
+ * the command line. */
+ if (load_repo_config() == ERR)
+ die("Failed to load repo config.");
+
if (!parse_options(argc, argv))
return 0;
memcpy(opt_cmd, "git ", 4);
opt_request = REQ_VIEW_PAGER;
} else {
- request = ERR;
+ report("Prompt interrupted by loading view, "
+ "press 'z' to stop loading views");
+ request = REQ_SCREEN_UPDATE;
}
noecho();
}
/**
- * [[refspec]]
- * Revision specification
- * ----------------------
- * This section describes various ways to specify what revisions to display
- * or otherwise limit the view to. tig(1) does not itself parse the described
- * revision options so refer to the relevant git man pages for futher
- * information. Relevant man pages besides git-log(1) are git-diff(1) and
- * git-rev-list(1).
- *
- * You can tune the interaction with git by making use of the options
- * explained in this section. For example, by configuring the environment
- * variables described in the <<view-commands, "View commands">> section.
- *
- * Limit by path name
- * ~~~~~~~~~~~~~~~~~~
- * If you are interested only in those revisions that made changes to a
- * specific file (or even several files) list the files like this:
- *
- * $ tig log Makefile README
- *
- * To avoid ambiguity with repository references such as tag name, be sure
- * to separate file names from other git options using "\--". So if you
- * have a file named 'master' it will clash with the reference named
- * 'master', and thus you will have to use:
- *
- * $ tig log -- master
- *
- * NOTE: For the main view, avoiding ambiguity will in some cases require
- * you to specify two "\--" options. The first will make tig(1) stop
- * option processing and the latter will be passed to git log.
- *
- * Limit by date or number
- * ~~~~~~~~~~~~~~~~~~~~~~~
- * To speed up interaction with git, you can limit the amount of commits
- * to show both for the log and main view. Either limit by date using
- * e.g. `--since=1.month` or limit by the number of commits using `-n400`.
- *
- * If you are only interested in changed that happened between two dates
- * you can use:
- *
- * $ tig -- --after="May 5th" --before="2006-05-16 15:44"
- *
- * NOTE: If you want to avoid having to quote dates containing spaces you
- * can use "." instead, e.g. `--after=May.5th`.
- *
- * Limiting by commit ranges
- * ~~~~~~~~~~~~~~~~~~~~~~~~~
- * Alternatively, commits can be limited to a specific range, such as
- * "all commits between 'tag-1.0' and 'tag-2.0'". For example:
- *
- * $ tig log tag-1.0..tag-2.0
- *
- * This way of commit limiting makes it trivial to only browse the commits
- * which haven't been pushed to a remote branch. Assuming 'origin' is your
- * upstream remote branch, using:
- *
- * $ tig log origin..HEAD
- *
- * will list what will be pushed to the remote branch. Optionally, the ending
- * 'HEAD' can be left out since it is implied.
- *
- * Limiting by reachability
- * ~~~~~~~~~~~~~~~~~~~~~~~~
- * Git interprets the range specifier "tag-1.0..tag-2.0" as
- * "all commits reachable from 'tag-2.0' but not from 'tag-1.0'".
- * Where reachability refers to what commits are ancestors (or part of the
- * history) of the branch or tagged revision in question.
- *
- * If you prefer to specify which commit to preview in this way use the
- * following:
- *
- * $ tig log tag-2.0 ^tag-1.0
- *
- * You can think of '^' as a negation operator. Using this alternate syntax,
- * it is possible to further prune commits by specifying multiple branch
- * cut offs.
- *
- * Combining revisions specification
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- * Revisions options can to some degree be combined, which makes it possible
- * to say "show at most 20 commits from within the last month that changed
- * files under the Documentation/ directory."
- *
- * $ tig -- --since=1.month -n20 -- Documentation/
- *
- * Examining all repository references
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- * In some cases, it can be useful to query changes across all references
- * in a repository. An example is to ask "did any line of development in
- * this repository change a particular file within the last week". This
- * can be accomplished using:
- *
- * $ tig -- --all --since=1.week -- Makefile
- *
- * BUGS
- * ----
- * Known bugs and problems:
- *
- * - In it's current state tig is pretty much UTF-8 only.
- *
- * - If the screen width is very small the main view can draw
- * outside the current view causing bad wrapping. Same goes
- * for title and status windows.
- *
- * - The cursor can wrap-around on the last line and cause the
- * window to scroll.
- *
- * TODO
- * ----
- * Features that should be explored.
- *
- * - Searching.
- *
- * - Locale support.
+ * include::BUGS[]
*
* COPYRIGHT
* ---------
*
* SEE ALSO
* --------
- * [verse]
- * link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)],
- * link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)]
- * gitk(1): git repository browser written using tcl/tk,
- * qgit(1): git repository browser written using c++/Qt,
- * gitview(1): git repository browser written using python/gtk.
+ * - 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[]
**/