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[PATCH] Teach "git-rev-parse" about date-based cut-offs

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This adds the options "--since=date" and "--before=date" to git-rev-parse,
which knows how to translate them into seconds since the epoch for
git-rev-list.

With this, you can do

	git log --since="2 weeks ago"

or

	git log --until=yesterday

to show the commits that have happened in the last two weeks or are
older than 24 hours, respectively.

The flags "--after=" and "--before" are synonyms for --since and --until,
and you can combine them, so

	git log --after="Aug 5" --before="Aug 10"

is a valid (but strange) thing to do.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Linus Torvalds 2005-09-20 14:13:24 -07:00 committed by Junio C Hamano
parent 7c6ef2f214
commit c1babb1d65
1 changed files with 41 additions and 0 deletions
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41
rev-parse.c
View file

@ -6,6 +6,7 @@
#include "cache.h"
#include "commit.h"
#include "refs.h"
#include "quote.h"
#define DO_REVS 1
#define DO_NOREV 2
@ -125,6 +126,30 @@ static int show_reference(const char *refname, const unsigned char *sha1)
return 0;
}
static void show_datestring(const char *flag, const char *datestr)
{
FILE *date;
static char buffer[100];
static char cmd[1000];
int len;
/* date handling requires both flags and revs */
if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS))
return;
len = strlen(flag);
memcpy(buffer, flag, len);
snprintf(cmd, sizeof(cmd), "date --date=%s +%%s", sq_quote(datestr));
date = popen(cmd, "r");
if (!date || !fgets(buffer + len, sizeof(buffer) - len, date))
die("git-rev-list: bad date string");
pclose(date);
len = strlen(buffer);
if (buffer[len-1] == '\n')
buffer[--len] = 0;
show(buffer);
}
int main(int argc, char **argv)
{
int i, as_is = 0, verify = 0;
@ -207,6 +232,22 @@ int main(int argc, char **argv)
printf("%s/.git\n", cwd);
continue;
}
if (!strncmp(arg, "--since=", 8)) {
show_datestring("--max-age=", arg+8);
continue;
}
if (!strncmp(arg, "--after=", 8)) {
show_datestring("--max-age=", arg+8);
continue;
}
if (!strncmp(arg, "--before=", 9)) {
show_datestring("--min-age=", arg+9);
continue;
}
if (!strncmp(arg, "--until=", 8)) {
show_datestring("--min-age=", arg+8);
continue;
}
if (verify)
die("Needed a single revision");
show_flag(arg);