-/*
+/**
+ * gitzilla(1)
+ * ===========
*
+ * NAME
+ * ----
+ * gitzilla - cursed git browser
*
- */
+ * SYNOPSIS
+ * --------
+ * gitzilla
+ *
+ * DESCRIPTION
+ * -----------
+ *
+ * a
+ *
+ **/
+#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
+#include <string.h>
#include <ctype.h>
#include <signal.h>
#include <curses.h>
+/**
+ * OPTIONS
+ * -------
+ *
+ * None
+ *
+ **/
+
+/**
+ * KEYS
+ * ----
+ *
+ * q:: quit
+ * s:: shell
+ * j:: down
+ * k:: up
+ *
+ **/
+
+#define MSG_HELP "(q)uit, (s)hell, (j) down, (k) up"
+
+#define KEY_ESC 27
+#define KEY_TAB 9
+
+struct view {
+ WINDOW *win;
+
+ char *cmd;
+ void (*reader)(char *, int);
+ FILE *pipe;
+
+ unsigned long lines;
+ unsigned long lineno;
+};
+
+static struct view main_view;
+static struct view diff_view;
+static struct view log_view;
+static struct view status_view;
+
+int do_resize = 1;
+
+static void
+put_status(char *msg, ...)
+{
+ va_list args;
+
+ va_start(args, msg);
+ werase(status_view.win);
+ wmove(status_view.win, 0, 0);
+ vwprintw(status_view.win, msg, args);
+ wrefresh(status_view.win);
+ va_end(args);
+}
+
+static void
+resize_views(void)
+{
+ int x, y;
+
+ getmaxyx(stdscr, y, x);
+
+ if (status_view.win)
+ delwin(status_view.win);
+ status_view.win = newwin(1, 0, y - 1, 0);
+
+ wattrset(status_view.win, COLOR_PAIR(COLOR_GREEN));
+ put_status(MSG_HELP);
+
+ if (main_view.win)
+ delwin(main_view.win);
+ main_view.win = newwin(y - 1, 0, 0, 0);
+
+ scrollok(main_view.win, TRUE);
+ keypad(main_view.win, TRUE); /* enable keyboard mapping */
+ put_status("%d %d", y, x);
+}
+
/*
* Init and quit
*/
-static void quit(int sig)
+static void
+quit(int sig)
{
endwin();
static void
init_colors(void)
{
+ int bg = COLOR_BLACK;
+
start_color();
- init_pair(COLOR_BLACK, COLOR_BLACK, COLOR_BLACK);
- init_pair(COLOR_GREEN, COLOR_GREEN, COLOR_BLACK);
- init_pair(COLOR_RED, COLOR_RED, COLOR_BLACK);
- init_pair(COLOR_CYAN, COLOR_CYAN, COLOR_BLACK);
- init_pair(COLOR_WHITE, COLOR_WHITE, COLOR_BLACK);
- init_pair(COLOR_MAGENTA, COLOR_MAGENTA, COLOR_BLACK);
- init_pair(COLOR_BLUE, COLOR_BLUE, COLOR_BLACK);
- init_pair(COLOR_YELLOW, COLOR_YELLOW, COLOR_BLACK);
+ if (use_default_colors() != ERR)
+ bg = -1;
+
+ init_pair(COLOR_BLACK, COLOR_BLACK, bg);
+ init_pair(COLOR_GREEN, COLOR_GREEN, bg);
+ init_pair(COLOR_RED, COLOR_RED, bg);
+ init_pair(COLOR_CYAN, COLOR_CYAN, bg);
+ init_pair(COLOR_WHITE, COLOR_WHITE, bg);
+ init_pair(COLOR_MAGENTA, COLOR_MAGENTA, bg);
+ init_pair(COLOR_BLUE, COLOR_BLUE, bg);
+ init_pair(COLOR_YELLOW, COLOR_YELLOW, bg);
}
static void
init(void)
{
- (void) signal(SIGINT, quit); /* arrange interrupts to terminate */
+ signal(SIGINT, quit);
- (void) initscr(); /* initialize the curses library */
- keypad(stdscr, TRUE); /* enable keyboard mapping */
- (void) nonl(); /* tell curses not to do NL->CR/NL on output */
- (void) cbreak(); /* take input chars one at a time, no wait for \n */
- (void) noecho(); /* don't echo input */
+ 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 */
+ noecho(); /* don't echo input */
+ leaveok(stdscr, TRUE);
+ /* curs_set(0); */
if (has_colors())
init_colors();
}
/*
+ * Pipe readers
+ */
+
+#define DIFF_CMD \
+ "git log --stat -n1 HEAD ; echo; " \
+ "git diff --find-copies-harder -B -C HEAD^ HEAD"
+
+#define LOG_CMD \
+ "git log --stat -n100"
+
+static void
+log_reader(char *line, int lineno)
+{
+ static int log_reader_skip;
+
+ if (!line) {
+ wattrset(main_view.win, A_NORMAL);
+ log_reader_skip = 0;
+ return;
+ }
+
+ if (!strncmp("commit ", line, 7)) {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_GREEN));
+
+ } else if (!strncmp("Author: ", line, 8)) {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_CYAN));
+
+ } else if (!strncmp("Date: ", line, 8)) {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_YELLOW));
+
+ } else if (!strncmp("diff --git ", line, 11)) {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_YELLOW));
+
+ } else if (!strncmp("diff-tree ", line, 10)) {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_BLUE));
+
+ } else if (!strncmp("index ", line, 6)) {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_BLUE));
+
+ } else if (line[0] == '-') {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_RED));
+
+ } else if (line[0] == '+') {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_GREEN));
+
+ } else if (line[0] == '@') {
+ wattrset(main_view.win, COLOR_PAIR(COLOR_MAGENTA));
+
+ } else if (line[0] == ':') {
+ main_view.lines--;
+ log_reader_skip = 1;
+ return;
+
+ } else if (log_reader_skip) {
+ main_view.lines--;
+ log_reader_skip = 0;
+ return;
+
+ } else {
+ wattrset(main_view.win, A_NORMAL);
+ }
+
+ mvwaddstr(main_view.win, lineno, 0, line);
+}
+
+static struct view *
+update_view(struct view *view, char *cmd)
+{
+ view->cmd = cmd;
+ view->pipe = popen(cmd, "r");
+ view->lines = 0;
+ view->lineno = 0;
+ view->reader = log_reader;
+
+ wclear(view->win);
+ wmove(view->win, 0, 0);
+
+ put_status("Loading...");
+
+ return view;
+}
+
+static struct view *
+read_pipe(struct view *view, int lines)
+{
+ char buffer[BUFSIZ];
+ char *line;
+ int x, y;
+
+ while ((line = fgets(buffer, sizeof(buffer), view->pipe))) {
+ int linelen;
+
+ if (!--lines)
+ break;
+
+ linelen = strlen(line);
+ if (linelen)
+ line[linelen - 1] = 0;
+
+ view->reader(line, view->lines++);
+ }
+
+ if (ferror(view->pipe)) {
+ put_status("Failed to read %s", view->cmd, view->lines - 1);
+
+ } else if (feof(view->pipe)) {
+ put_status("%s (lines %d)", MSG_HELP, view->lines - 1);
+
+ } else {
+ return view;
+ }
+
+ view->reader(NULL, view->lines - 1);
+ pclose(view->pipe);
+ view->pipe = NULL;
+ view->reader = NULL;
+}
+
+/*
* Main
*/
int
main(int argc, char *argv[])
{
- int x, y;
+ static struct view *loading_view;
init();
- getmaxyx(stdscr, y, x);
+ //pipe = open_pipe(LOG_CMD, log_reader);
+
+ for (;;) {
+ int c;
- attrset(COLOR_PAIR(COLOR_GREEN));
-
- addch(ACS_VLINE);
- printw("%s", "cg-view");
- addch(ACS_LTEE);
- addch(ACS_HLINE);
- addch(ACS_HLINE);
- addch(ACS_HLINE);
- addch(ACS_HLINE);
- addch(ACS_HLINE);
- addch(ACS_HLINE);
- addch(ACS_HLINE);
- mvprintw(y - 1, 0, "%s", "press 'q' to quit");
-
- {
- FILE *rev_list = popen("git-rev-list $(git-rev-parse --since=1.month) HEAD", "r");
- char buffer[BUFSIZ];
- char *line;
- int lineno = 1;
-
- while ((line = fgets(buffer, sizeof(buffer), rev_list))) {
- move(lineno, 0);
- printw("%2d: ", lineno++);
- addch(ACS_LTEE);
- addch(ACS_HLINE);
- addstr(line);
+ if (do_resize) {
+ resize_views();
+ do_resize = 0;
}
- }
- attrset(A_NORMAL);
-/* scrollok();*/
- for (;;) {
- int c = getch(); /* refresh, accept single keystroke of input */
+ if (loading_view && (loading_view = read_pipe(loading_view, 20)))
+ nodelay(loading_view->win, TRUE);
+
+ c = wgetch(main_view.win); /* refresh, accept single keystroke of input */
+
+ if (loading_view)
+ nodelay(loading_view->win, FALSE);
+
+ /* No input from wgetch() with nodelay() enabled. */
+ if (c == ERR) {
+ doupdate();
+ continue;
+ }
/* Process the command keystroke */
switch (c) {
+ case KEY_RESIZE:
+ fprintf(stderr, "resize");
+ exit;
+ break;
+
+ case KEY_ESC:
case 'q':
quit(0);
+ main_view.lineno--;
return 0;
+ case KEY_DOWN:
+ case 'j':
+ {
+ int x, y;
+
+ getmaxyx(main_view.win, y, x);
+ if (main_view.lineno + y < main_view.lines) {
+ wscrl(main_view.win, 1);
+ main_view.lineno++;
+ put_status("line %d out of %d (%d%%)",
+ main_view.lineno,
+ main_view.lines,
+ 100 * main_view.lineno / main_view.lines);
+ } else {
+ put_status("last line reached");
+ }
+ break;
+ }
+ case KEY_UP:
+ case 'k':
+ if (main_view.lineno > 1) {
+ wscrl(main_view.win, -1);
+ main_view.lineno--;
+ put_status("line %d out of %d (%d%%)",
+ main_view.lineno,
+ main_view.lines,
+ 100 * main_view.lineno / main_view.lines);
+ } else {
+ put_status("first line reached");
+ }
+ break;
+
+ case 'c':
+ wclear(main_view.win);
+ break;
+
+ case 'd':
+ loading_view = update_view(&main_view, DIFF_CMD);
+ break;
+
+ case 'l':
+ loading_view = update_view(&main_view, LOG_CMD);
+ break;
+
case 's':
- addstr("Shelling out...");
+ mvwaddstr(status_view.win, 0, 0, "Shelling out...");
def_prog_mode(); /* save current tty modes */
endwin(); /* restore original tty modes */
system("sh"); /* run shell */
- addstr("returned.\n"); /* prepare return message */
+
+ werase(status_view.win);
+ mvwaddstr(status_view.win, 0, 0, MSG_HELP);
reset_prog_mode();
- //refresh(); /* restore save modes, repaint screen */
break;
-
- default:
- if (isprint(c) || isspace(c))
- addch(c);
}
+ redrawwin(main_view.win);
+ wrefresh(main_view.win);
}
quit(0);
}
+
+/**
+ * COPYRIGHT
+ * ---------
+ * Copyright (c) Jonas Fonseca, 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * SEE ALSO
+ * --------
+ * gitlink:cogito[7],
+ * gitlink:git[7]
+ **/
~mdw / tig / blobdiff