* SYNOPSIS
* --------
* [verse]
- * tig
- * tig log [git log options]
- * tig diff [git diff options]
- * tig < [git log or git diff output]
+ * tig [options]
+ * tig [options] log [git log options]
+ * tig [options] diff [git diff options]
+ * tig [options] < [git log or git diff output]
*
* DESCRIPTION
* -----------
* Browse changes in a git repository.
- *
- * OPTIONS
- * -------
- *
- * None.
- *
**/
#define DEBUG
-
#ifndef DEBUG
#define NDEBUG
#endif
+#ifndef VERSION
+#define VERSION "tig-0.1"
+#endif
+
#include <assert.h>
#include <ctype.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <time.h>
#include <curses.h>
#include <form.h>
#define REQ_REDRAW (REQ_OFFSET + 15)
#define REQ_FIRST_LINE (REQ_OFFSET + 16)
#define REQ_LAST_LINE (REQ_OFFSET + 17)
+#define REQ_LINE_NUMBER (REQ_OFFSET + 18)
+
+#define SIZEOF_VIEWS (REQ_VIEWS - REQ_OFFSET)
+#define SIZEOF_ID 1024
#define COLOR_TRANSP (-1)
+/**
+ * OPTIONS
+ * -------
+ **/
+
+static int opt_line_number;
+static int opt_request = REQ_MAIN;
+
+char head_id[SIZEOF_ID] = "HEAD";
+char commit_id[SIZEOF_ID] = "HEAD";
+
+
+/* Returns the index of log or diff command or -1 to exit. */
+static int
+parse_options(int argc, char *argv[])
+{
+ int i;
+
+ for (i = 1; i < argc; i++) {
+ char *opt = argv[i];
+
+ /**
+ * log [options]::
+ * git log options.
+ **/
+ if (!strcmp(opt, "log")) {
+ opt_request = REQ_LOG;
+ return i;
+
+ /**
+ * diff [options]::
+ * git diff options.
+ **/
+ } else if (!strcmp(opt, "diff")) {
+ opt_request = REQ_DIFF;
+ return i;
+
+ /**
+ * -l::
+ * Start up in log view.
+ **/
+ } else if (!strcmp(opt, "-l")) {
+ opt_request = REQ_LOG;
+
+ /**
+ * -d::
+ * Start up in diff view.
+ **/
+ } else if (!strcmp(opt, "-d")) {
+ opt_request = REQ_DIFF;
+
+ /**
+ * -n, --line-number::
+ * Prefix line numbers in log and diff view.
+ **/
+ } else if (!strcmp(opt, "-n") ||
+ !strcmp(opt, "--line-number")) {
+ opt_line_number = 1;
+
+ /**
+ * -v, --version::
+ * Show version and exit.
+ **/
+ } else if (!strcmp(opt, "-v") ||
+ !strcmp(opt, "--version")) {
+ printf("tig version %s\n", VERSION);
+ return -1;
+
+ /**
+ * ref::
+ * Commit reference, symbolic or raw SHA1 ID.
+ **/
+ } else if (opt[0] && opt[0] != '-') {
+ strncpy(head_id, opt, SIZEOF_ID);
+ strncpy(commit_id, opt, SIZEOF_ID);
+
+ } else {
+ die("Unknown command: '%s'", opt);
+ }
+ }
+
+ return i;
+}
+
+
+/*
+ * Line-oriented content detection.
+ */
+
enum line_type {
+ LINE_DEFAULT,
LINE_AUTHOR,
+ LINE_AUTHOR_IDENT,
LINE_COMMIT,
+ LINE_COMMITTER,
+ LINE_CURSOR,
LINE_DATE,
LINE_DIFF,
LINE_DIFF_ADD,
- LINE_DIFF_DEL,
LINE_DIFF_CHUNK,
+ LINE_DIFF_COPY,
+ LINE_DIFF_DEL,
+ LINE_DIFF_DISSIM,
+ LINE_DIFF_NEWMODE,
+ LINE_DIFF_OLDMODE,
+ LINE_DIFF_RENAME,
+ LINE_DIFF_SIM,
LINE_DIFF_TREE,
LINE_INDEX,
+ LINE_MAIN_AUTHOR,
+ LINE_MAIN_COMMIT,
+ LINE_MAIN_DATE,
+ LINE_MAIN_DELIM,
+ LINE_MERGE,
LINE_PARENT,
- LINE_TREE,
-
- LINE_UNKNOWN,
- LINE_CURSOR,
LINE_STATUS,
LINE_TITLE,
+ LINE_TREE,
};
struct line_info {
{ LINE_##type, (line), sizeof(line) - 1, (fg), (bg), (attr) }
static struct line_info line_info[] = {
- LINE(AUTHOR, "Author: ", COLOR_CYAN, COLOR_TRANSP, 0),
- //LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_TRANSP, 0),
- LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_TRANSP, 0),
- LINE(DATE, "Date: ", COLOR_YELLOW, COLOR_TRANSP, 0),
- LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_TRANSP, 0),
- LINE(DIFF_CHUNK, "@", COLOR_MAGENTA, COLOR_TRANSP, 0),
- LINE(DIFF_DEL, "-", COLOR_RED, COLOR_TRANSP, 0),
- LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_TRANSP, 0),
- LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_TRANSP, 0),
- LINE(INDEX, "index ", COLOR_BLUE, COLOR_TRANSP, 0),
- LINE(PARENT, "parent ", COLOR_GREEN, COLOR_TRANSP, 0),
- LINE(TREE, "tree ", COLOR_GREEN, COLOR_TRANSP, 0),
-
- LINE(UNKNOWN, "", COLOR_TRANSP, COLOR_TRANSP, A_NORMAL),
-
- LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD),
- LINE(STATUS, "", COLOR_GREEN, COLOR_TRANSP, 0),
- LINE(TITLE, "", COLOR_YELLOW, COLOR_BLUE, A_BOLD),
+ /* Diff markup */
+ LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_TRANSP, 0),
+ LINE(INDEX, "index ", COLOR_BLUE, COLOR_TRANSP, 0),
+ LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_TRANSP, 0),
+ LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_TRANSP, 0),
+ LINE(DIFF_DEL, "-", COLOR_RED, COLOR_TRANSP, 0),
+ LINE(DIFF_OLDMODE, "old mode ", COLOR_YELLOW, COLOR_TRANSP, 0),
+ LINE(DIFF_NEWMODE, "new mode ", COLOR_YELLOW, COLOR_TRANSP, 0),
+ LINE(DIFF_COPY, "copy ", COLOR_YELLOW, COLOR_TRANSP, 0),
+ LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_TRANSP, 0),
+ LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_TRANSP, 0),
+ LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_TRANSP, 0),
+
+ /* Pretty print commit header */
+ LINE(AUTHOR, "Author: ", COLOR_CYAN, COLOR_TRANSP, 0),
+ LINE(MERGE, "Merge: ", COLOR_BLUE, COLOR_TRANSP, 0),
+ LINE(DATE, "Date: ", COLOR_YELLOW, COLOR_TRANSP, 0),
+
+ /* Raw commit header */
+ LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_TRANSP, 0),
+ LINE(PARENT, "parent ", COLOR_BLUE, COLOR_TRANSP, 0),
+ LINE(TREE, "tree ", COLOR_BLUE, COLOR_TRANSP, 0),
+ LINE(AUTHOR_IDENT, "author ", COLOR_CYAN, COLOR_TRANSP, 0),
+ LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_TRANSP, 0),
+
+ LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_TRANSP, 0),
+
+ /* UI colors */
+ LINE(DEFAULT, "", COLOR_TRANSP, COLOR_TRANSP, A_NORMAL),
+ LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD),
+ LINE(STATUS, "", COLOR_GREEN, COLOR_TRANSP, 0),
+ LINE(TITLE, "", COLOR_YELLOW, COLOR_BLUE, A_BOLD),
+ LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_TRANSP, 0),
+ LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_TRANSP, 0),
+ LINE(MAIN_COMMIT, "", COLOR_TRANSP, COLOR_TRANSP, 0),
+ LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_TRANSP, 0),
};
static struct line_info *
{
struct line_info *info = get_line_info(line);
- return info ? info->type : LINE_UNKNOWN;
+ return info ? info->type : LINE_DEFAULT;
}
static int
}
-
-
/**
* KEYS
* ----
{ 'l', REQ_LOG },
{ 'm', REQ_MAIN },
+ { 'n', REQ_LINE_NUMBER },
+
/* No input from wgetch() with nodelay() enabled. */
{ ERR, REQ_UPDATE },
struct commit {
char id[41];
char title[75];
+ char author[75];
+ struct tm time;
};
static int pager_draw(struct view *view, unsigned int lineno);
static WINDOW *title_win;
-#define SIZEOF_ID 1024
-#define SIZEOF_VIEWS (REQ_VIEWS - REQ_OFFSET)
-
-char head_id[SIZEOF_ID] = "HEAD";
-char commit_id[SIZEOF_ID] = "HEAD";
-
static unsigned int current_view;
static unsigned int nloading;
wrefresh(view->win);
}
+static void
+resize_view(struct view *view)
+{
+ int lines, cols;
+
+ getmaxyx(stdscr, lines, cols);
+
+ if (view->win) {
+ mvwin(view->win, 0, 0);
+ wresize(view->win, lines - 2, cols);
+
+ } else {
+ view->win = newwin(lines - 2, 0, 0, 0);
+ if (!view->win) {
+ report("failed to create %s view", view->name);
+ return;
+ }
+ scrollok(view->win, TRUE);
+ }
+
+ getmaxyx(view->win, view->height, view->width);
+}
+
/* FIXME: Fix percentage. */
static void
report_position(struct view *view, int all)
assert(0 <= view->offset && view->offset < view->lines);
assert(lines);
- {
+ if (view->height < (lines > 0 ? lines : -lines)) {
+ redraw_view(view);
+
+ } else {
int line = lines > 0 ? view->height - lines : 0;
int end = line + (lines > 0 ? lines : -lines);
move_view(view, lines);
}
-
static void
navigate_view(struct view *view, int request)
{
report("already at first line");
return;
- } else if (steps > 0 && view->lineno + 1 >= view->lines) {
+ } else if (steps > 0 && view->lineno + 1 == view->lines) {
report("already at last line");
return;
}
view->lineno >= view->offset + view->height) {
if (steps < 0 && -steps > view->offset) {
steps = -view->offset;
- } else if (steps > 0 && steps > view->height) {
- steps -= view->height - 1;
+
+ } else if (steps > 0) {
+ if (view->lineno == view->lines - 1 &&
+ view->lines > view->height) {
+ steps = view->lines - view->offset - 1;
+ if (steps >= view->height)
+ steps -= view->height - 1;
+ }
}
move_view(view, steps);
return;
}
+ /* Draw the cursor line */
view->draw(view, view->lineno - view->offset);
redrawwin(view->win);
report_position(view, view->height);
}
-static void
-resize_view(struct view *view)
-{
- int lines, cols;
-
- getmaxyx(stdscr, lines, cols);
-
- if (view->win) {
- mvwin(view->win, 0, 0);
- wresize(view->win, lines - 2, cols);
-
- } else {
- view->win = newwin(lines - 2, 0, 0, 0);
- if (!view->win) {
- report("failed to create %s view", view->name);
- return;
- }
- scrollok(view->win, TRUE);
- }
-
- getmaxyx(view->win, view->height, view->width);
-}
static bool
view = switch_view(view, request);
break;
+ case REQ_LINE_NUMBER:
+ opt_line_number = !opt_line_number;
+ redraw_view(view);
+ break;
+
case REQ_REDRAW:
redraw_view(view);
break;
attr = get_line_attr(type);
wattrset(view->win, attr);
- //mvwprintw(view->win, lineno, 0, "%4d: %s", view->offset + lineno, line);
- mvwaddstr(view->win, lineno, 0, line);
+
+ if (opt_line_number) {
+ mvwprintw(view->win, lineno, 0, "%4d: ", view->offset + lineno + 1);
+ while (line) {
+ if (*line == '\t') {
+ waddstr(view->win, " ");
+ line++;
+ } else {
+ char *tab = strchr(line, '\t');
+
+ if (tab)
+ waddnstr(view->win, line, tab - line);
+ else
+ waddstr(view->win, line);
+ line = tab;
+ }
+ }
+ waddstr(view->win, line);
+
+ } else {
+ /* No empty lines makes cursor drawing and clearing implicit. */
+ if (!*line)
+ line = " ";
+ mvwaddstr(view->win, lineno, 0, line);
+ }
return TRUE;
}
static int
main_draw(struct view *view, unsigned int lineno)
{
+ char buf[21];
struct commit *commit;
enum line_type type;
+ int cols = 0;
+ size_t timelen;
if (view->offset + lineno >= view->lines)
return FALSE;
strncpy(commit_id, commit->id, SIZEOF_ID);
type = LINE_CURSOR;
} else {
- type = LINE_COMMIT;
+ type = LINE_MAIN_COMMIT;
+ }
+
+ wmove(view->win, lineno, cols);
+ wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
+
+ timelen = strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S ", &commit->time);
+ waddnstr(view->win, buf, timelen);
+
+ cols += 20;
+ wmove(view->win, lineno, cols);
+ wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
+
+ if (strlen(commit->author) > 19) {
+ waddnstr(view->win, commit->author, 18);
+ wattrset(view->win, get_line_attr(LINE_MAIN_DELIM));
+ waddch(view->win, '~');
+ } else {
+ waddstr(view->win, commit->author);
}
- mvwaddch(view->win, lineno, 0, ACS_LTEE);
+ cols += 20;
+ wattrset(view->win, A_NORMAL);
+ mvwaddch(view->win, lineno, cols, ACS_LTEE);
wattrset(view->win, get_line_attr(type));
- mvwaddstr(view->win, lineno, 2, commit->title);
+ mvwaddstr(view->win, lineno, cols + 2, commit->title);
wattrset(view->win, A_NORMAL);
return TRUE;
if (!commit)
return FALSE;
+ line += sizeof("commit ") - 1;
+
view->line[view->lines++] = commit;
- strncpy(commit->id, line + 7, 41);
+ strncpy(commit->id, line, sizeof(commit->id));
break;
+ case LINE_AUTHOR_IDENT:
+ {
+ char *ident = line + sizeof("author ") - 1;
+ char *end = strchr(ident, '<');
+
+ if (end) {
+ for (; end > ident && isspace(end[-1]); end--) ;
+ *end = 0;
+ }
+
+ commit = view->line[view->lines - 1];
+ strncpy(commit->author, ident, sizeof(commit->author));
+
+ if (end) {
+ char *secs = strchr(end + 1, '>');
+ char *zone;
+ time_t time;
+
+ if (!secs || secs[1] != ' ')
+ break;
+
+ secs += 2;
+ time = (time_t) atol(secs);
+ zone = strchr(secs, ' ');
+ if (zone && strlen(zone) == sizeof(" +0700") - 1) {
+ long tz;
+
+ zone++;
+ tz = ('0' - zone[1]) * 60 * 60 * 10;
+ tz += ('0' - zone[2]) * 60 * 60;
+ tz += ('0' - zone[3]) * 60;
+ tz += ('0' - zone[4]) * 60;
+
+ if (zone[0] == '-')
+ tz = -tz;
+
+ time -= tz;
+ }
+ gmtime_r(&time, &commit->time);
+ }
+ break;
+ }
default:
commit = view->line[view->lines - 1];
if (!commit->title[0] &&
{
va_list args;
+ werase(title_win);
+ wmove(title_win, 0, 0);
+ wprintw(title_win, "commit %s", commit_id);
+ wrefresh(title_win);
+
va_start(args, msg);
werase(status_win);
wrefresh(status_win);
va_end(args);
-
- werase(title_win);
- wmove(title_win, 0, 0);
- wprintw(title_win, "commit %s", commit_id);
- wrefresh(title_win);
-
}
int
main(int argc, char *argv[])
{
- int request = REQ_MAIN;
int x, y;
+ int request;
+ int git_cmd;
signal(SIGINT, quit);
+ git_cmd = parse_options(argc, argv);
+ if (git_cmd < 0)
+ return 0;
+
+ request = opt_request;
+
initscr(); /* initialize the curses library */
nonl(); /* tell curses not to do NL->CR/NL on output */
cbreak(); /* take input chars one at a time, no wait for \n */
~mdw / tig / commitdiff