mirror of
https://github.com/git/git.git
synced 2024-11-26 03:14:50 +08:00
f01913e419
Earlier, 'git prune' would prune all loose unreachable objects. This could be quite dangerous, as the objects could be used in an ongoing operation. This patch adds a mode to expire only loose, unreachable objects which are older than a certain time. For example, by git prune --expire 14.days you can prune only those objects which are loose, unreachable and older than 14 days (and thus probably outdated). The implementation uses st.st_mtime rather than st.st_ctime, because it can be tested better, using 'touch -d <time>' (and omitting the test when the platform does not support that command line switch). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
120 lines
2.3 KiB
C
120 lines
2.3 KiB
C
#include "cache.h"
|
|
#include "commit.h"
|
|
#include "diff.h"
|
|
#include "revision.h"
|
|
#include "builtin.h"
|
|
#include "reachable.h"
|
|
|
|
static const char prune_usage[] = "git-prune [-n]";
|
|
static int show_only;
|
|
static unsigned long expire;
|
|
|
|
static int prune_object(char *path, const char *filename, const unsigned char *sha1)
|
|
{
|
|
const char *fullpath = mkpath("%s/%s", path, filename);
|
|
if (expire) {
|
|
struct stat st;
|
|
if (lstat(fullpath, &st))
|
|
return error("Could not stat '%s'", fullpath);
|
|
if (st.st_mtime > expire)
|
|
return 0;
|
|
}
|
|
if (show_only) {
|
|
enum object_type type = sha1_object_info(sha1, NULL);
|
|
printf("%s %s\n", sha1_to_hex(sha1),
|
|
(type > 0) ? typename(type) : "unknown");
|
|
} else
|
|
unlink(fullpath);
|
|
return 0;
|
|
}
|
|
|
|
static int prune_dir(int i, char *path)
|
|
{
|
|
DIR *dir = opendir(path);
|
|
struct dirent *de;
|
|
|
|
if (!dir)
|
|
return 0;
|
|
|
|
while ((de = readdir(dir)) != NULL) {
|
|
char name[100];
|
|
unsigned char sha1[20];
|
|
int len = strlen(de->d_name);
|
|
|
|
switch (len) {
|
|
case 2:
|
|
if (de->d_name[1] != '.')
|
|
break;
|
|
case 1:
|
|
if (de->d_name[0] != '.')
|
|
break;
|
|
continue;
|
|
case 38:
|
|
sprintf(name, "%02x", i);
|
|
memcpy(name+2, de->d_name, len+1);
|
|
if (get_sha1_hex(name, sha1) < 0)
|
|
break;
|
|
|
|
/*
|
|
* Do we know about this object?
|
|
* It must have been reachable
|
|
*/
|
|
if (lookup_object(sha1))
|
|
continue;
|
|
|
|
prune_object(path, de->d_name, sha1);
|
|
continue;
|
|
}
|
|
fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
|
|
}
|
|
if (!show_only)
|
|
rmdir(path);
|
|
closedir(dir);
|
|
return 0;
|
|
}
|
|
|
|
static void prune_object_dir(const char *path)
|
|
{
|
|
int i;
|
|
for (i = 0; i < 256; i++) {
|
|
static char dir[4096];
|
|
sprintf(dir, "%s/%02x", path, i);
|
|
prune_dir(i, dir);
|
|
}
|
|
}
|
|
|
|
int cmd_prune(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int i;
|
|
struct rev_info revs;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
if (!strcmp(arg, "-n")) {
|
|
show_only = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--expire")) {
|
|
if (++i < argc) {
|
|
expire = approxidate(argv[i]);
|
|
continue;
|
|
}
|
|
}
|
|
else if (!prefixcmp(arg, "--expire=")) {
|
|
expire = approxidate(arg + 9);
|
|
continue;
|
|
}
|
|
usage(prune_usage);
|
|
}
|
|
|
|
save_commit_buffer = 0;
|
|
init_revisions(&revs, prefix);
|
|
mark_reachable_objects(&revs, 1);
|
|
|
|
prune_object_dir(get_object_directory());
|
|
|
|
sync();
|
|
prune_packed_objects(show_only);
|
|
return 0;
|
|
}
|