git/builtin-cat-file.c
Linus Torvalds 9a8e35e987 Relative timestamps in git log
I noticed that I was looking at the kernel gitweb output at some point
rather than just do "git log", simply because I liked seeing the
simplified date-format, ie the "5 days ago" rather than a full date.

This adds infrastructure to do that for "git log" too. It does NOT add the
actual flag to enable it, though, so right now this patch is a no-op, but
it should now be easy to add a command line flag (and possibly a config
file option) to just turn on the "relative" date format.

The exact cut-off points when it switches from days to weeks etc are
totally arbitrary, but are picked somewhat to avoid the "1 weeks ago"
thing (by making it show "10 days ago" rather than "1 week", or "70
minutes ago" rather than "1 hour ago").

[jc: with minor fix and tweak around "month" and "week" area.]

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-26 19:12:03 -07:00

151 lines
3.2 KiB
C

/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#include "cache.h"
#include "exec_cmd.h"
#include "tag.h"
#include "tree.h"
#include "builtin.h"
static void pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
{
/* the parser in tag.c is useless here. */
const char *endp = buf + size;
const char *cp = buf;
while (cp < endp) {
char c = *cp++;
if (c != '\n')
continue;
if (7 <= endp - cp && !memcmp("tagger ", cp, 7)) {
const char *tagger = cp;
/* Found the tagger line. Copy out the contents
* of the buffer so far.
*/
write_or_die(1, buf, cp - buf);
/*
* Do something intelligent, like pretty-printing
* the date.
*/
while (cp < endp) {
if (*cp++ == '\n') {
/* tagger to cp is a line
* that has ident and time.
*/
const char *sp = tagger;
char *ep;
unsigned long date;
long tz;
while (sp < cp && *sp != '>')
sp++;
if (sp == cp) {
/* give up */
write_or_die(1, tagger,
cp - tagger);
break;
}
while (sp < cp &&
!('0' <= *sp && *sp <= '9'))
sp++;
write_or_die(1, tagger, sp - tagger);
date = strtoul(sp, &ep, 10);
tz = strtol(ep, NULL, 10);
sp = show_date(date, tz, 0);
write_or_die(1, sp, strlen(sp));
xwrite(1, "\n", 1);
break;
}
}
break;
}
if (cp < endp && *cp == '\n')
/* end of header */
break;
}
/* At this point, we have copied out the header up to the end of
* the tagger line and cp points at one past \n. It could be the
* next header line after the tagger line, or it could be another
* \n that marks the end of the headers. We need to copy out the
* remainder as is.
*/
if (cp < endp)
write_or_die(1, cp, endp - cp);
}
int cmd_cat_file(int argc, const char **argv, const char *prefix)
{
unsigned char sha1[20];
char type[20];
void *buf;
unsigned long size;
int opt;
git_config(git_default_config);
if (argc != 3)
usage("git-cat-file [-t|-s|-e|-p|<type>] <sha1>");
if (get_sha1(argv[2], sha1))
die("Not a valid object name %s", argv[2]);
opt = 0;
if ( argv[1][0] == '-' ) {
opt = argv[1][1];
if ( !opt || argv[1][2] )
opt = -1; /* Not a single character option */
}
buf = NULL;
switch (opt) {
case 't':
if (!sha1_object_info(sha1, type, NULL)) {
printf("%s\n", type);
return 0;
}
break;
case 's':
if (!sha1_object_info(sha1, type, &size)) {
printf("%lu\n", size);
return 0;
}
break;
case 'e':
return !has_sha1_file(sha1);
case 'p':
if (sha1_object_info(sha1, type, NULL))
die("Not a valid object name %s", argv[2]);
/* custom pretty-print here */
if (!strcmp(type, tree_type))
return cmd_ls_tree(2, argv + 1, NULL);
buf = read_sha1_file(sha1, type, &size);
if (!buf)
die("Cannot read object %s", argv[2]);
if (!strcmp(type, tag_type)) {
pprint_tag(sha1, buf, size);
return 0;
}
/* otherwise just spit out the data */
break;
case 0:
buf = read_object_with_reference(sha1, argv[1], &size, NULL);
break;
default:
die("git-cat-file: unknown option: %s\n", argv[1]);
}
if (!buf)
die("git-cat-file %s: bad file", argv[2]);
write_or_die(1, buf, size);
return 0;
}