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tig.c
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tig.c
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/* Copyright (c) 2006-2010 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "tig.h"
#include "io.h"
#include "graph.h"
static void __NORETURN die(const char *err, ...);
static void warn(const char *msg, ...);
static void report(const char *msg, ...);
struct ref {
char id[SIZEOF_REV]; /* Commit SHA1 ID */
unsigned int head:1; /* Is it the current HEAD? */
unsigned int tag:1; /* Is it a tag? */
unsigned int ltag:1; /* If so, is the tag local? */
unsigned int remote:1; /* Is it a remote ref? */
unsigned int tracked:1; /* Is it the remote for the current HEAD? */
char name[1]; /* Ref name; tag or head names are shortened. */
};
struct ref_list {
char id[SIZEOF_REV]; /* Commit SHA1 ID */
size_t size; /* Number of refs. */
struct ref **refs; /* References for this ID. */
};
static struct ref *get_ref_head();
static struct ref_list *get_ref_list(const char *id);
static void foreach_ref(bool (*visitor)(void *data, const struct ref *ref), void *data);
static int load_refs(void);
enum input_status {
INPUT_OK,
INPUT_SKIP,
INPUT_STOP,
INPUT_CANCEL
};
typedef enum input_status (*input_handler)(void *data, char *buf, int c);
static char *prompt_input(const char *prompt, input_handler handler, void *data);
static bool prompt_yesno(const char *prompt);
struct menu_item {
int hotkey;
const char *text;
void *data;
};
static bool prompt_menu(const char *prompt, const struct menu_item *items, int *selected);
#define GRAPHIC_ENUM(_) \
_(GRAPHIC, ASCII), \
_(GRAPHIC, DEFAULT), \
_(GRAPHIC, UTF_8)
DEFINE_ENUM(graphic, GRAPHIC_ENUM);
#define DATE_ENUM(_) \
_(DATE, NO), \
_(DATE, DEFAULT), \
_(DATE, LOCAL), \
_(DATE, RELATIVE), \
_(DATE, SHORT)
DEFINE_ENUM(date, DATE_ENUM);
struct time {
time_t sec;
int tz;
};
static inline int timecmp(const struct time *t1, const struct time *t2)
{
return t1->sec - t2->sec;
}
static const char *
mkdate(const struct time *time, enum date date)
{
static char buf[DATE_COLS + 1];
static const struct enum_map reldate[] = {
{ "second", 1, 60 * 2 },
{ "minute", 60, 60 * 60 * 2 },
{ "hour", 60 * 60, 60 * 60 * 24 * 2 },
{ "day", 60 * 60 * 24, 60 * 60 * 24 * 7 * 2 },
{ "week", 60 * 60 * 24 * 7, 60 * 60 * 24 * 7 * 5 },
{ "month", 60 * 60 * 24 * 30, 60 * 60 * 24 * 30 * 12 },
};
struct tm tm;
if (!date || !time || !time->sec)
return "";
if (date == DATE_RELATIVE) {
struct timeval now;
time_t date = time->sec + time->tz;
time_t seconds;
int i;
gettimeofday(&now, NULL);
seconds = now.tv_sec < date ? date - now.tv_sec : now.tv_sec - date;
for (i = 0; i < ARRAY_SIZE(reldate); i++) {
if (seconds >= reldate[i].value)
continue;
seconds /= reldate[i].namelen;
if (!string_format(buf, "%ld %s%s %s",
seconds, reldate[i].name,
seconds > 1 ? "s" : "",
now.tv_sec >= date ? "ago" : "ahead"))
break;
return buf;
}
}
if (date == DATE_LOCAL) {
time_t date = time->sec + time->tz;
localtime_r(&date, &tm);
}
else {
gmtime_r(&time->sec, &tm);
}
return strftime(buf, sizeof(buf), DATE_FORMAT, &tm) ? buf : NULL;
}
#define AUTHOR_ENUM(_) \
_(AUTHOR, NO), \
_(AUTHOR, FULL), \
_(AUTHOR, ABBREVIATED)
DEFINE_ENUM(author, AUTHOR_ENUM);
static const char *
get_author_initials(const char *author)
{
static char initials[AUTHOR_COLS * 6 + 1];
size_t pos = 0;
const char *end = strchr(author, '\0');
#define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@' || (c) == '-')
memset(initials, 0, sizeof(initials));
while (author < end) {
unsigned char bytes;
size_t i;
while (author < end && is_initial_sep(*author))
author++;
bytes = utf8_char_length(author, end);
if (bytes >= sizeof(initials) - 1 - pos)
break;
while (bytes--) {
initials[pos++] = *author++;
}
i = pos;
while (author < end && !is_initial_sep(*author)) {
bytes = utf8_char_length(author, end);
if (bytes >= sizeof(initials) - 1 - i) {
while (author < end && !is_initial_sep(*author))
author++;
break;
}
while (bytes--) {
initials[i++] = *author++;
}
}
initials[i++] = 0;
}
return initials;
}
#define author_trim(cols) (cols == 0 || cols > 5)
static const char *
mkauthor(const char *text, int cols, enum author author)
{
bool trim = author_trim(cols);
bool abbreviate = author == AUTHOR_ABBREVIATED || !trim;
if (author == AUTHOR_NO)
return "";
if (abbreviate && text)
return get_author_initials(text);
return text;
}
static const char *
mkmode(mode_t mode)
{
if (S_ISDIR(mode))
return "drwxr-xr-x";
else if (S_ISLNK(mode))
return "lrwxrwxrwx";
else if (S_ISGITLINK(mode))
return "m---------";
else if (S_ISREG(mode) && mode & S_IXUSR)
return "-rwxr-xr-x";
else if (S_ISREG(mode))
return "-rw-r--r--";
else
return "----------";
}
/*
* 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_TREE, "Show tree view"), \
REQ_(VIEW_BLOB, "Show blob view"), \
REQ_(VIEW_BLAME, "Show blame view"), \
REQ_(VIEW_BRANCH, "Show branch view"), \
REQ_(VIEW_HELP, "Show help page"), \
REQ_(VIEW_PAGER, "Show pager view"), \
REQ_(VIEW_STATUS, "Show status view"), \
REQ_(VIEW_STAGE, "Show stage view"), \
\
REQ_GROUP("View manipulation") \
REQ_(ENTER, "Enter current line and scroll"), \
REQ_(NEXT, "Move to next"), \
REQ_(PREVIOUS, "Move to previous"), \
REQ_(PARENT, "Move to parent"), \
REQ_(VIEW_NEXT, "Move focus to next view"), \
REQ_(REFRESH, "Reload and refresh"), \
REQ_(MAXIMIZE, "Maximize the current view"), \
REQ_(VIEW_CLOSE, "Close the current view"), \
REQ_(QUIT, "Close all views and quit"), \
\
REQ_GROUP("View specific requests") \
REQ_(STATUS_UPDATE, "Update file status"), \
REQ_(STATUS_REVERT, "Revert file changes"), \
REQ_(STATUS_MERGE, "Merge file using external tool"), \
REQ_(STAGE_NEXT, "Find next chunk to stage"), \
\
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_FIRST_COL, "Scroll to the first line columns"), \
REQ_(SCROLL_LEFT, "Scroll two columns left"), \
REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
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("Searching") \
REQ_(SEARCH, "Search the view"), \
REQ_(SEARCH_BACK, "Search backwards in the view"), \
REQ_(FIND_NEXT, "Find next search match"), \
REQ_(FIND_PREV, "Find previous search match"), \
\
REQ_GROUP("Option manipulation") \
REQ_(OPTIONS, "Open option menu"), \
REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
REQ_(TOGGLE_DATE, "Toggle date display"), \
REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
REQ_(TOGGLE_GRAPHIC, "Toggle (line) graphics mode"), \
REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
REQ_(TOGGLE_SORT_ORDER, "Toggle ascending/descending sort order"), \
REQ_(TOGGLE_SORT_FIELD, "Toggle field to sort by"), \
\
REQ_GROUP("Misc") \
REQ_(PROMPT, "Bring up the prompt"), \
REQ_(SCREEN_REDRAW, "Redraw the screen"), \
REQ_(SHOW_VERSION, "Show version information"), \
REQ_(STOP_LOADING, "Stop all loading views"), \
REQ_(EDIT, "Open in editor"), \
REQ_(NONE, "Do nothing")
/* 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_UNKNOWN = KEY_MAX + 1,
REQ_OFFSET,
REQ_INFO
#undef REQ_GROUP
#undef REQ_
};
struct request_info {
enum request request;
const char *name;
int namelen;
const char *help;
};
static const struct request_info req_info[] = {
#define REQ_GROUP(help) { 0, NULL, 0, (help) },
#define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
REQ_INFO
#undef REQ_GROUP
#undef REQ_
};
static enum request
get_request(const char *name)
{
int namelen = strlen(name);
int i;
for (i = 0; i < ARRAY_SIZE(req_info); i++)
if (enum_equals(req_info[i], name, namelen))
return req_info[i].request;
return REQ_UNKNOWN;
}
/*
* Options
*/
/* Option and state variables. */
static enum graphic opt_line_graphics = GRAPHIC_DEFAULT;
static enum date opt_date = DATE_DEFAULT;
static enum author opt_author = AUTHOR_FULL;
static bool opt_rev_graph = TRUE;
static bool opt_line_number = FALSE;
static bool opt_show_refs = TRUE;
static bool opt_untracked_dirs_content = TRUE;
static int opt_num_interval = 5;
static double opt_hscroll = 0.50;
static double opt_scale_split_view = 2.0 / 3.0;
static int opt_tab_size = 8;
static int opt_author_cols = AUTHOR_COLS;
static char opt_path[SIZEOF_STR] = "";
static char opt_file[SIZEOF_STR] = "";
static char opt_ref[SIZEOF_REF] = "";
static char opt_head[SIZEOF_REF] = "";
static char opt_remote[SIZEOF_REF] = "";
static char opt_encoding[20] = "UTF-8";
static iconv_t opt_iconv_in = ICONV_NONE;
static iconv_t opt_iconv_out = ICONV_NONE;
static char opt_search[SIZEOF_STR] = "";
static char opt_cdup[SIZEOF_STR] = "";
static char opt_prefix[SIZEOF_STR] = "";
static char opt_git_dir[SIZEOF_STR] = "";
static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
static char opt_editor[SIZEOF_STR] = "";
static FILE *opt_tty = NULL;
static const char **opt_diff_argv = NULL;
static const char **opt_rev_argv = NULL;
static const char **opt_file_argv = NULL;
static const char **opt_blame_argv = NULL;
#define is_initial_commit() (!get_ref_head())
#define is_head_commit(rev) (!strcmp((rev), "HEAD") || (get_ref_head() && !strcmp(rev, get_ref_head()->id)))
/*
* Line-oriented content detection.
*/
#define LINE_INFO \
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_ADD2, " +", COLOR_GREEN, COLOR_DEFAULT, 0), \
LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
LINE(DIFF_DEL2, " -", COLOR_RED, COLOR_DEFAULT, 0), \
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), \
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(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(TESTED, " Tested-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(REVIEWED, " Reviewed-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(HELP_KEYMAP, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(HELP_GROUP, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(GRAPH_LINE_0, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(GRAPH_LINE_1, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(GRAPH_LINE_2, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(GRAPH_LINE_3, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
LINE(GRAPH_LINE_4, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
LINE(GRAPH_LINE_5, "", COLOR_WHITE, COLOR_DEFAULT, 0), \
LINE(GRAPH_LINE_6, "", COLOR_RED, COLOR_DEFAULT, 0), \
LINE(GRAPH_COMMIT, "", COLOR_BLUE, COLOR_DEFAULT, 0)
enum line_type {
#define LINE(type, line, fg, bg, attr) \
LINE_##type
LINE_INFO,
LINE_NONE
#undef LINE
};
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) \
{ #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
LINE_INFO
#undef LINE
};
static enum line_type
get_line_type(const char *line)
{
int linelen = strlen(line);
enum line_type type;
for (type = 0; type < ARRAY_SIZE(line_info); type++)
/* Case insensitive search matches Signed-off-by lines better. */
if (linelen >= line_info[type].linelen &&
!strncasecmp(line_info[type].line, line, line_info[type].linelen))
return type;
return LINE_DEFAULT;
}
static inline int
get_line_attr(enum line_type type)
{
assert(type < ARRAY_SIZE(line_info));
return COLOR_PAIR(type) | line_info[type].attr;
}
static struct line_info *
get_line_info(const char *name)
{
size_t namelen = strlen(name);
enum line_type type;
for (type = 0; type < ARRAY_SIZE(line_info); type++)
if (enum_equals(line_info[type], name, namelen))
return &line_info[type];
return NULL;
}
static void
init_colors(void)
{
int default_bg = line_info[LINE_DEFAULT].bg;
int default_fg = line_info[LINE_DEFAULT].fg;
enum line_type type;
start_color();
if (assume_default_colors(default_fg, default_bg) == ERR) {
default_bg = COLOR_BLACK;
default_fg = COLOR_WHITE;
}
for (type = 0; type < ARRAY_SIZE(line_info); type++) {
struct line_info *info = &line_info[type];
int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
init_pair(type, fg, bg);
}
}
struct line {
enum line_type type;
/* State flags */
unsigned int selected:1;
unsigned int dirty:1;
unsigned int cleareol:1;
unsigned int other:16;
void *data; /* User data */
};
/*
* Keys
*/
struct keybinding {
int alias;
enum request request;
};
static struct keybinding default_keybindings[] = {
/* View switching */
{ 'm', REQ_VIEW_MAIN },
{ 'd', REQ_VIEW_DIFF },
{ 'l', REQ_VIEW_LOG },
{ 't', REQ_VIEW_TREE },
{ 'f', REQ_VIEW_BLOB },
{ 'B', REQ_VIEW_BLAME },
{ 'H', REQ_VIEW_BRANCH },
{ 'p', REQ_VIEW_PAGER },
{ 'h', REQ_VIEW_HELP },
{ 'S', REQ_VIEW_STATUS },
{ 'c', REQ_VIEW_STAGE },
/* View manipulation */
{ 'q', REQ_VIEW_CLOSE },
{ KEY_TAB, REQ_VIEW_NEXT },
{ KEY_RETURN, REQ_ENTER },
{ KEY_UP, REQ_PREVIOUS },
{ KEY_CTL('P'), REQ_PREVIOUS },
{ KEY_DOWN, REQ_NEXT },
{ KEY_CTL('N'), REQ_NEXT },
{ 'R', REQ_REFRESH },
{ KEY_F(5), REQ_REFRESH },
{ 'O', REQ_MAXIMIZE },
/* Cursor navigation */
{ 'k', REQ_MOVE_UP },
{ 'j', REQ_MOVE_DOWN },
{ KEY_HOME, REQ_MOVE_FIRST_LINE },
{ KEY_END, REQ_MOVE_LAST_LINE },
{ KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
{ KEY_CTL('D'), REQ_MOVE_PAGE_DOWN },
{ ' ', REQ_MOVE_PAGE_DOWN },
{ KEY_PPAGE, REQ_MOVE_PAGE_UP },
{ KEY_CTL('U'), REQ_MOVE_PAGE_UP },
{ 'b', REQ_MOVE_PAGE_UP },
{ '-', REQ_MOVE_PAGE_UP },
/* Scrolling */
{ '|', REQ_SCROLL_FIRST_COL },
{ KEY_LEFT, REQ_SCROLL_LEFT },
{ KEY_RIGHT, REQ_SCROLL_RIGHT },
{ KEY_IC, REQ_SCROLL_LINE_UP },
{ KEY_CTL('Y'), REQ_SCROLL_LINE_UP },
{ KEY_DC, REQ_SCROLL_LINE_DOWN },
{ KEY_CTL('E'), REQ_SCROLL_LINE_DOWN },
{ 'w', REQ_SCROLL_PAGE_UP },
{ 's', REQ_SCROLL_PAGE_DOWN },
/* Searching */
{ '/', REQ_SEARCH },
{ '?', REQ_SEARCH_BACK },
{ 'n', REQ_FIND_NEXT },
{ 'N', REQ_FIND_PREV },
/* Misc */
{ 'Q', REQ_QUIT },
{ 'z', REQ_STOP_LOADING },
{ 'v', REQ_SHOW_VERSION },
{ 'r', REQ_SCREEN_REDRAW },
{ KEY_CTL('L'), REQ_SCREEN_REDRAW },
{ 'o', REQ_OPTIONS },
{ '.', REQ_TOGGLE_LINENO },
{ 'D', REQ_TOGGLE_DATE },
{ 'A', REQ_TOGGLE_AUTHOR },
{ 'g', REQ_TOGGLE_REV_GRAPH },
{ '~', REQ_TOGGLE_GRAPHIC },
{ 'F', REQ_TOGGLE_REFS },
{ 'I', REQ_TOGGLE_SORT_ORDER },
{ 'i', REQ_TOGGLE_SORT_FIELD },
{ ':', REQ_PROMPT },
{ 'u', REQ_STATUS_UPDATE },
{ '!', REQ_STATUS_REVERT },
{ 'M', REQ_STATUS_MERGE },
{ '@', REQ_STAGE_NEXT },
{ ',', REQ_PARENT },
{ 'e', REQ_EDIT },
};
#define KEYMAP_ENUM(_) \
_(KEYMAP, GENERIC), \
_(KEYMAP, MAIN), \
_(KEYMAP, DIFF), \
_(KEYMAP, LOG), \
_(KEYMAP, TREE), \
_(KEYMAP, BLOB), \
_(KEYMAP, BLAME), \
_(KEYMAP, BRANCH), \
_(KEYMAP, PAGER), \
_(KEYMAP, HELP), \
_(KEYMAP, STATUS), \
_(KEYMAP, STAGE)
DEFINE_ENUM(keymap, KEYMAP_ENUM);
#define set_keymap(map, name) map_enum(map, keymap_map, name)
struct keybinding_table {
struct keybinding *data;
size_t size;
};
static struct keybinding_table keybindings[ARRAY_SIZE(keymap_map)];
static void
add_keybinding(enum keymap keymap, enum request request, int key)
{
struct keybinding_table *table = &keybindings[keymap];
size_t i;
for (i = 0; i < keybindings[keymap].size; i++) {
if (keybindings[keymap].data[i].alias == key) {
keybindings[keymap].data[i].request = request;
return;
}
}
table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
if (!table->data)
die("Failed to allocate keybinding");
table->data[table->size].alias = key;
table->data[table->size++].request = request;
if (request == REQ_NONE && keymap == KEYMAP_GENERIC) {
int i;
for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
if (default_keybindings[i].alias == key)
default_keybindings[i].request = REQ_NONE;
}
}
/* Looks for a key binding first in the given map, then in the generic map, and
* lastly in the default keybindings. */
static enum request
get_keybinding(enum keymap keymap, int key)
{
size_t i;
for (i = 0; i < keybindings[keymap].size; i++)
if (keybindings[keymap].data[i].alias == key)
return keybindings[keymap].data[i].request;
for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
return keybindings[KEYMAP_GENERIC].data[i].request;
for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
if (default_keybindings[i].alias == key)
return default_keybindings[i].request;
return (enum request) key;
}
struct key {
const char *name;
int value;
};
static const 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 },
{ "Hash", '#' },
{ "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 int
get_key_value(const char *name)
{
int i;
for (i = 0; i < ARRAY_SIZE(key_table); i++)
if (!strcasecmp(key_table[i].name, name))
return key_table[i].value;
if (strlen(name) == 2 && name[0] == '^' && isprint(*name))
return (int)name[1] & 0x1f;
if (strlen(name) == 1 && isprint(*name))
return (int) *name;
return ERR;
}
static const char *
get_key_name(int key_value)
{
static char key_char[] = "'X'\0";
const char *seq = NULL;
int key;
for (key = 0; key < ARRAY_SIZE(key_table); key++)
if (key_table[key].value == key_value)
seq = key_table[key].name;
if (seq == NULL && key_value < 0x7f) {
char *s = key_char + 1;
if (key_value >= 0x20) {
*s++ = key_value;
} else {
*s++ = '^';
*s++ = 0x40 | (key_value & 0x1f);
}
*s++ = '\'';
*s++ = '\0';
seq = key_char;
}
return seq ? seq : "(no key)";
}
static bool
append_key(char *buf, size_t *pos, const struct keybinding *keybinding)
{
const char *sep = *pos > 0 ? ", " : "";
const char *keyname = get_key_name(keybinding->alias);
return string_nformat(buf, BUFSIZ, pos, "%s%s", sep, keyname);
}
static bool
append_keymap_request_keys(char *buf, size_t *pos, enum request request,
enum keymap keymap, bool all)
{
int i;
for (i = 0; i < keybindings[keymap].size; i++) {
if (keybindings[keymap].data[i].request == request) {
if (!append_key(buf, pos, &keybindings[keymap].data[i]))
return FALSE;
if (!all)
break;
}
}
return TRUE;
}
#define get_key(keymap, request) get_keys(keymap, request, FALSE)
static const char *
get_keys(enum keymap keymap, enum request request, bool all)
{
static char buf[BUFSIZ];
size_t pos = 0;
int i;
buf[pos] = 0;
if (!append_keymap_request_keys(buf, &pos, request, keymap, all))
return "Too many keybindings!";
if (pos > 0 && !all)
return buf;
if (keymap != KEYMAP_GENERIC) {
/* Only the generic keymap includes the default keybindings when
* listing all keys. */
if (all)
return buf;
if (!append_keymap_request_keys(buf, &pos, request, KEYMAP_GENERIC, all))
return "Too many keybindings!";
if (pos)
return buf;
}
for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
if (default_keybindings[i].request == request) {
if (!append_key(buf, &pos, &default_keybindings[i]))
return "Too many keybindings!";
if (!all)
return buf;
}
}
return buf;
}
struct run_request {
enum keymap keymap;
int key;
const char **argv;
};
static struct run_request *run_request;
static size_t run_requests;
DEFINE_ALLOCATOR(realloc_run_requests, struct run_request, 8)
static enum request
add_run_request(enum keymap keymap, int key, const char **argv)
{
struct run_request *req;
if (!realloc_run_requests(&run_request, run_requests, 1))
return REQ_NONE;
req = &run_request[run_requests];
req->keymap = keymap;
req->key = key;
req->argv = NULL;
if (!argv_copy(&req->argv, argv))
return REQ_NONE;
return REQ_NONE + ++run_requests;
}
static struct run_request *
get_run_request(enum request request)
{
if (request <= REQ_NONE)
return NULL;
return &run_request[request - REQ_NONE - 1];
}
static void
add_builtin_run_requests(void)
{
const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
const char *checkout[] = { "git", "checkout", "%(branch)", NULL };
const char *commit[] = { "git", "commit", NULL };
const char *gc[] = { "git", "gc", NULL };
struct run_request reqs[] = {
{ KEYMAP_MAIN, 'C', cherry_pick },
{ KEYMAP_STATUS, 'C', commit },
{ KEYMAP_BRANCH, 'C', checkout },
{ KEYMAP_GENERIC, 'G', gc },
};
int i;
for (i = 0; i < ARRAY_SIZE(reqs); i++) {
enum request req = get_keybinding(reqs[i].keymap, reqs[i].key);
if (req != reqs[i].key)
continue;
req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argv);
if (req != REQ_NONE)
add_keybinding(reqs[i].keymap, req, reqs[i].key);
}
}
/*
* User config file handling.
*/
#define OPT_ERR_INFO \
OPT_ERR_(INTEGER_VALUE_OUT_OF_BOUND, "Integer value out of bound"), \
OPT_ERR_(INVALID_STEP_VALUE, "Invalid step value"), \
OPT_ERR_(NO_OPTION_VALUE, "No option value"), \
OPT_ERR_(NO_VALUE_ASSIGNED, "No value assigned"), \
OPT_ERR_(OBSOLETE_REQUEST_NAME, "Obsolete request name"), \
OPT_ERR_(OUT_OF_MEMORY, "Out of memory"), \
OPT_ERR_(TOO_MANY_OPTION_ARGUMENTS, "Too many option arguments"), \
OPT_ERR_(UNKNOWN_ATTRIBUTE, "Unknown attribute"), \
OPT_ERR_(UNKNOWN_COLOR, "Unknown color"), \
OPT_ERR_(UNKNOWN_COLOR_NAME, "Unknown color name"), \
OPT_ERR_(UNKNOWN_KEY, "Unknown key"), \
OPT_ERR_(UNKNOWN_KEY_MAP, "Unknown key map"), \
OPT_ERR_(UNKNOWN_OPTION_COMMAND, "Unknown option command"), \
OPT_ERR_(UNKNOWN_REQUEST_NAME, "Unknown request name"), \
OPT_ERR_(UNKNOWN_VARIABLE_NAME, "Unknown variable name"), \
OPT_ERR_(UNMATCHED_QUOTATION, "Unmatched quotation"), \
OPT_ERR_(WRONG_NUMBER_OF_ARGUMENTS, "Wrong number of arguments"),
enum option_code {
#define OPT_ERR_(name, msg) OPT_ERR_ ## name
OPT_ERR_INFO
#undef OPT_ERR_
OPT_OK
};
static const char *option_errors[] = {
#define OPT_ERR_(name, msg) msg
OPT_ERR_INFO
#undef OPT_ERR_
};
static const struct enum_map color_map[] = {
#define COLOR_MAP(name) ENUM_MAP(#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 const struct enum_map attr_map[] = {
#define ATTR_MAP(name) ENUM_MAP(#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) map_enum(attr, attr_map, name)
static enum option_code
parse_step(double *opt, const char *arg)
{
*opt = atoi(arg);
if (!strchr(arg, '%'))
return OPT_OK;
/* "Shift down" so 100% and 1 does not conflict. */