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tig.c
8276 lines (6745 loc) · 192 KB
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tig.c
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/* Copyright (c) 2006-2012 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 "refs.h"
#include "graph.h"
#include "git.h"
static void __NORETURN die(const char *err, ...) PRINTF_LIKE(1, 2);
static void warn(const char *msg, ...) PRINTF_LIKE(1, 2);
static void report(const char *msg, ...) PRINTF_LIKE(1, 2);
#define report_clear() report("%s", "")
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);
static char *read_prompt(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_WIDTH + 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 * 365 },
{ "year", 60 * 60 * 24 * 365, 0 },
};
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 && 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_WIDTH * 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 > 10)
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 "----------";
}
#define FILENAME_ENUM(_) \
_(FILENAME, NO), \
_(FILENAME, ALWAYS), \
_(FILENAME, AUTO)
DEFINE_ENUM(filename, FILENAME_ENUM);
#define IGNORE_SPACE_ENUM(_) \
_(IGNORE_SPACE, NO), \
_(IGNORE_SPACE, ALL), \
_(IGNORE_SPACE, SOME), \
_(IGNORE_SPACE, AT_EOL)
DEFINE_ENUM(ignore_space, IGNORE_SPACE_ENUM);
#define COMMIT_ORDER_ENUM(_) \
_(COMMIT_ORDER, DEFAULT), \
_(COMMIT_ORDER, TOPO), \
_(COMMIT_ORDER, DATE), \
_(COMMIT_ORDER, REVERSE)
DEFINE_ENUM(commit_order, COMMIT_ORDER_ENUM);
#define VIEW_INFO(_) \
_(MAIN, main, ref_head), \
_(DIFF, diff, ref_commit), \
_(LOG, log, ref_head), \
_(TREE, tree, ref_commit), \
_(BLOB, blob, ref_blob), \
_(BLAME, blame, ref_commit), \
_(BRANCH, branch, ref_head), \
_(HELP, help, ""), \
_(PAGER, pager, ""), \
_(STATUS, status, "status"), \
_(STAGE, stage, "stage")
static struct encoding *
get_path_encoding(const char *path, struct encoding *default_encoding)
{
const char *check_attr_argv[] = {
"git", "check-attr", "encoding", "--", path, NULL
};
char buf[SIZEOF_STR];
char *encoding;
/* <path>: encoding: <encoding> */
if (!*path || !io_run_buf(check_attr_argv, buf, sizeof(buf))
|| !(encoding = strstr(buf, ENCODING_SEP)))
return default_encoding;
encoding += STRING_SIZE(ENCODING_SEP);
if (!strcmp(encoding, ENCODING_UTF8)
|| !strcmp(encoding, "unspecified")
|| !strcmp(encoding, "set"))
return default_encoding;
return encoding_open(encoding);
}
/*
* User requests
*/
#define VIEW_REQ(id, name, ref) REQ_(VIEW_##id, "Show " #name " view")
#define REQ_INFO \
REQ_GROUP("View switching") \
VIEW_INFO(VIEW_REQ), \
\
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_UPDATE_LINE, "Update single line"), \
REQ_(STAGE_NEXT, "Find next chunk to stage"), \
REQ_(DIFF_CONTEXT_DOWN, "Decrease the diff context"), \
REQ_(DIFF_CONTEXT_UP, "Increase the diff context"), \
\
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_FILENAME, "Toggle file name display"), \
REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
REQ_(TOGGLE_CHANGES, "Toggle local changes display in the main view"), \
REQ_(TOGGLE_SORT_ORDER, "Toggle ascending/descending sort order"), \
REQ_(TOGGLE_SORT_FIELD, "Toggle field to sort by"), \
REQ_(TOGGLE_IGNORE_SPACE, "Toggle ignoring whitespace in diffs"), \
REQ_(TOGGLE_COMMIT_ORDER, "Toggle commit ordering"), \
REQ_(TOGGLE_ID, "Toggle commit ID display"), \
\
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,
/* Internal requests. */
REQ_JUMP_COMMIT,
#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 enum filename opt_filename = FILENAME_AUTO;
static bool opt_rev_graph = TRUE;
static bool opt_line_number = FALSE;
static bool opt_show_refs = TRUE;
static bool opt_show_changes = TRUE;
static bool opt_untracked_dirs_content = TRUE;
static bool opt_read_git_colors = TRUE;
static bool opt_wrap_lines = FALSE;
static bool opt_ignore_case = FALSE;
static int opt_diff_context = 3;
static char opt_diff_context_arg[9] = "";
static enum ignore_space opt_ignore_space = IGNORE_SPACE_NO;
static char opt_ignore_space_arg[22] = "";
static enum commit_order opt_commit_order = COMMIT_ORDER_DEFAULT;
static char opt_commit_order_arg[22] = "";
static bool opt_notes = TRUE;
static char opt_notes_arg[SIZEOF_STR] = "--show-notes";
static int opt_num_interval = 5;
static double opt_hscroll = 0.50;
static double opt_scale_split_view = 2.0 / 3.0;
static double opt_scale_vsplit_view = 0.5;
static bool opt_vsplit = FALSE;
static int opt_tab_size = 8;
static int opt_author_width = AUTHOR_WIDTH;
static int opt_filename_width = FILENAME_WIDTH;
static char opt_path[SIZEOF_STR] = "";
static char opt_file[SIZEOF_STR] = "";
static char opt_ref[SIZEOF_REF] = "";
static unsigned long opt_goto_line = 0;
static char opt_head[SIZEOF_REF] = "";
static char opt_remote[SIZEOF_REF] = "";
static struct encoding *opt_encoding = NULL;
static char opt_encoding_arg[SIZEOF_STR] = ENCODING_ARG;
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;
static int opt_lineno = 0;
static bool opt_show_id = FALSE;
static int opt_id_cols = ID_WIDTH;
#define is_initial_commit() (!get_ref_head())
#define is_head_commit(rev) (!strcmp((rev), "HEAD") || (get_ref_head() && !strncmp(rev, get_ref_head()->id, SIZEOF_REV - 1)))
#define load_refs() reload_refs(opt_git_dir, opt_remote, opt_head, sizeof(opt_head))
static inline void
update_diff_context_arg(int diff_context)
{
if (!string_format(opt_diff_context_arg, "-U%u", diff_context))
string_ncopy(opt_diff_context_arg, "-U3", 3);
}
static inline void
update_ignore_space_arg()
{
if (opt_ignore_space == IGNORE_SPACE_ALL) {
string_copy(opt_ignore_space_arg, "--ignore-all-space");
} else if (opt_ignore_space == IGNORE_SPACE_SOME) {
string_copy(opt_ignore_space_arg, "--ignore-space-change");
} else if (opt_ignore_space == IGNORE_SPACE_AT_EOL) {
string_copy(opt_ignore_space_arg, "--ignore-space-at-eol");
} else {
string_copy(opt_ignore_space_arg, "");
}
}
static inline void
update_commit_order_arg()
{
if (opt_commit_order == COMMIT_ORDER_TOPO) {
string_copy(opt_commit_order_arg, "--topo-order");
} else if (opt_commit_order == COMMIT_ORDER_DATE) {
string_copy(opt_commit_order_arg, "--date-order");
} else if (opt_commit_order == COMMIT_ORDER_REVERSE) {
string_copy(opt_commit_order_arg, "--reverse");
} else {
string_copy(opt_commit_order_arg, "");
}
}
static inline void
update_notes_arg()
{
if (opt_notes) {
string_copy(opt_notes_arg, "--show-notes");
} else {
/* Notes are disabled by default when passing --pretty args. */
string_copy(opt_notes_arg, "");
}
}
/*
* Line-oriented content detection.
*/
#define LINE_INFO \
LINE(DIFF_HEADER, "diff --", 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_DELETED_FILE_MODE, \
"deleted 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(ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(FILENAME, "", COLOR_DEFAULT, 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_REPLACE, "", COLOR_CYAN, 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(DIFF_STAT, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
LINE(PALETTE_0, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
LINE(PALETTE_1, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
LINE(PALETTE_2, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
LINE(PALETTE_3, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
LINE(PALETTE_4, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
LINE(PALETTE_5, "", COLOR_WHITE, COLOR_DEFAULT, 0), \
LINE(PALETTE_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. */
int color_pair;
};
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 struct line_info **color_pair;
static size_t color_pairs;
static struct line_info *custom_color;
static size_t custom_colors;
DEFINE_ALLOCATOR(realloc_custom_color, struct line_info, 8)
DEFINE_ALLOCATOR(realloc_color_pair, struct line_info *, 8)
#define TO_CUSTOM_COLOR_TYPE(type) (LINE_NONE + 1 + (type))
#define TO_CUSTOM_COLOR_OFFSET(type) ((type) - LINE_NONE - 1)
/* Color IDs must be 1 or higher. [GH #15] */
#define COLOR_ID(line_type) ((line_type) + 1)
static enum line_type
get_line_type(const char *line)
{
int linelen = strlen(line);
enum line_type type;
for (type = 0; type < custom_colors; type++)
/* Case insensitive search matches Signed-off-by lines better. */
if (linelen >= custom_color[type].linelen &&
!strncasecmp(custom_color[type].line, line, custom_color[type].linelen))
return TO_CUSTOM_COLOR_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 enum line_type
get_line_type_from_ref(const struct ref *ref)
{
if (ref->head)
return LINE_MAIN_HEAD;
else if (ref->ltag)
return LINE_MAIN_LOCAL_TAG;
else if (ref->tag)
return LINE_MAIN_TAG;
else if (ref->tracked)
return LINE_MAIN_TRACKED;
else if (ref->remote)
return LINE_MAIN_REMOTE;
else if (ref->replace)
return LINE_MAIN_REPLACE;
return LINE_MAIN_REF;
}
static inline struct line_info *
get_line(enum line_type type)
{
if (type > LINE_NONE) {
assert(TO_CUSTOM_COLOR_OFFSET(type) < custom_colors);
return &custom_color[TO_CUSTOM_COLOR_OFFSET(type)];
} else {
assert(type < ARRAY_SIZE(line_info));
return &line_info[type];
}
}
static inline int
get_line_color(enum line_type type)
{
return COLOR_ID(get_line(type)->color_pair);
}
static inline int
get_line_attr(enum line_type type)
{
struct line_info *info = get_line(type);
return COLOR_PAIR(COLOR_ID(info->color_pair)) | info->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 struct line_info *
add_custom_color(const char *quoted_line)
{
struct line_info *info;
char *line;
size_t linelen;
if (!realloc_custom_color(&custom_color, custom_colors, 1))
die("Failed to alloc custom line info");
linelen = strlen(quoted_line) - 1;
line = malloc(linelen);
if (!line)
return NULL;
strncpy(line, quoted_line + 1, linelen);
line[linelen - 1] = 0;
info = &custom_color[custom_colors++];
info->name = info->line = line;
info->namelen = info->linelen = strlen(line);
return info;
}
static void
init_line_info_color_pair(struct line_info *info, enum line_type type,
int default_bg, int default_fg)
{
int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
int i;
for (i = 0; i < color_pairs; i++) {
if (color_pair[i]->fg == info->fg && color_pair[i]->bg == info->bg) {
info->color_pair = i;
return;
}
}
if (!realloc_color_pair(&color_pair, color_pairs, 1))
die("Failed to alloc color pair");
color_pair[color_pairs] = info;
info->color_pair = color_pairs++;
init_pair(COLOR_ID(info->color_pair), fg, bg);
}
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];
init_line_info_color_pair(info, type, default_bg, default_fg);
}
for (type = 0; type < custom_colors; type++) {
struct line_info *info = &custom_color[type];
init_line_info_color_pair(info, TO_CUSTOM_COLOR_TYPE(type),
default_bg, default_fg);
}
}
struct line {
enum line_type type;
unsigned int lineno:24;
/* State flags */
unsigned int selected:1;
unsigned int dirty:1;
unsigned int cleareol:1;
unsigned int dont_free:1;
unsigned int wrapped:1;
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 },
{ ',', REQ_PARENT },
/* View specific */
{ 'u', REQ_STATUS_UPDATE },
{ '!', REQ_STATUS_REVERT },
{ 'M', REQ_STATUS_MERGE },
{ '1', REQ_STAGE_UPDATE_LINE },
{ '@', REQ_STAGE_NEXT },
{ '[', REQ_DIFF_CONTEXT_DOWN },
{ ']', REQ_DIFF_CONTEXT_UP },
/* 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 },
{ '#', REQ_TOGGLE_FILENAME },
{ 'F', REQ_TOGGLE_REFS },
{ 'I', REQ_TOGGLE_SORT_ORDER },
{ 'i', REQ_TOGGLE_SORT_FIELD },
{ 'W', REQ_TOGGLE_IGNORE_SPACE },
{ 'X', REQ_TOGGLE_ID },
{ ':', REQ_PROMPT },
{ 'e', REQ_EDIT },
};
struct keymap {
const char *name;
struct keymap *next;
struct keybinding *data;
size_t size;
bool hidden;
};
static struct keymap generic_keymap = { "generic" };
#define is_generic_keymap(keymap) ((keymap) == &generic_keymap)
static struct keymap *keymaps = &generic_keymap;
static void
add_keymap(struct keymap *keymap)
{
keymap->next = keymaps;
keymaps = keymap;
}
static struct keymap *
get_keymap(const char *name)
{
struct keymap *keymap = keymaps;
while (keymap) {
if (!strcasecmp(keymap->name, name))
return keymap;
keymap = keymap->next;
}
return NULL;
}
static void
add_keybinding(struct keymap *table, enum request request, int key)
{
size_t i;
for (i = 0; i < table->size; i++) {
if (table->data[i].alias == key) {
table->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 && is_generic_keymap(table)) {
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(struct keymap *keymap, int key)
{
size_t i;
for (i = 0; i < keymap->size; i++)
if (keymap->data[i].alias == key)
return keymap->data[i].request;
for (i = 0; i < generic_keymap.size; i++)
if (generic_keymap.data[i].alias == key)
return generic_keymap.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) },