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git/builtin-prune.c

163 строки
3.4 KiB
C
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builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
#include "cache.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "builtin.h"
Move traversal of reachable objects into a separate library. This moves major part of builtin-prune into a separate file, reachable.c. It is used to mark the objects that are reachable from refs, and optionally from reflogs. The patch looks very large, but if you look at it with diff -C, which this message is formatted in, most of them are copied lines and there are very little additions. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-06 13:16:17 +03:00
#include "reachable.h"
builtin-prune.c: use parse_options() Using the OPT_DATE() introduced earlier, this updates builtin-prune to use parse_options(). Signed-off-by: Michele Ballabio <barra_cuda@katamail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-23 23:50:29 +03:00
#include "parse-options.h"
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
builtin-prune.c: use parse_options() Using the OPT_DATE() introduced earlier, this updates builtin-prune to use parse_options(). Signed-off-by: Michele Ballabio <barra_cuda@katamail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-23 23:50:29 +03:00
static const char * const prune_usage[] = {
"git-prune [-n] [--expire <time>] [--] [<head>...]",
NULL
};
remove unnecessary initializations [jc: I needed to hand merge the changes to the updated codebase, so the result needs to be checked.] Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-15 21:23:48 +04:00
static int show_only;
Add "--expire <time>" option to 'git prune' 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>
2007-11-29 23:59:55 +03:00
static unsigned long expire;
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
static int prune_object(char *path, const char *filename, const unsigned char *sha1)
{
Add "--expire <time>" option to 'git prune' 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>
2007-11-29 23:59:55 +03:00
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;
}
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
if (show_only) {
convert object type handling from a string to a number We currently have two parallel notation for dealing with object types in the code: a string and a numerical value. One of them is obviously redundent, and the most used one requires more stack space and a bunch of strcmp() all over the place. This is an initial step for the removal of the version using a char array found in object reading code paths. The patch is unfortunately large but there is no sane way to split it in smaller parts without breaking the system. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-26 22:55:59 +03:00
enum object_type type = sha1_object_info(sha1, NULL);
printf("%s %s\n", sha1_to_hex(sha1),
(type > 0) ? typename(type) : "unknown");
minor git-prune optimization Don't try to remove the containing directory for every pruned object but try only once after the directory has been scanned instead. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-21 06:32:13 +03:00
} else
Add "--expire <time>" option to 'git prune' 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>
2007-11-29 23:59:55 +03:00
unlink(fullpath);
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
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);
}
minor git-prune optimization Don't try to remove the containing directory for every pruned object but try only once after the directory has been scanned instead. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-21 06:32:13 +03:00
if (!show_only)
rmdir(path);
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
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);
}
}
Make git prune remove temporary packs that look like write failures Write errors when repacking (eg, due to out-of-space conditions) can leave temporary packs (and possibly other files beginning with "tmp_") lying around which no existing codepath removes and which aren't obvious to the casual user. These can also be multi-megabyte files wasting noticeable space. Unfortunately there's no way to definitely tell in builtin-prune that a tmp_ file is not being used by a concurrent process, such as a fetch. However, it is documented that pruning should only be done on a quiet repository and --expire is honoured (using code from Johannes Schindelin, along with a test case he wrote) so that its safety is the same as that of loose object pruning. Since they might be signs of a problem (unlike orphaned loose objects) the names of any removed files are printed. Signed-off-by: David Tweed (david.tweed@gmail.com) Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-07 05:55:14 +03:00
/*
* Write errors (particularly out of space) can result in
* failed temporary packs (and more rarely indexes and other
* files begining with "tmp_") accumulating in the
* object directory.
*/
static void remove_temporary_files(void)
{
DIR *dir;
struct dirent *de;
char* dirname=get_object_directory();
dir = opendir(dirname);
if (!dir) {
fprintf(stderr, "Unable to open object directory %s\n",
dirname);
return;
}
while ((de = readdir(dir)) != NULL) {
if (!prefixcmp(de->d_name, "tmp_")) {
char name[PATH_MAX];
int c = snprintf(name, PATH_MAX, "%s/%s",
dirname, de->d_name);
if (c < 0 || c >= PATH_MAX)
continue;
if (expire) {
struct stat st;
if (stat(name, &st) != 0 || st.st_mtime >= expire)
continue;
}
printf("Removing stale temporary file %s\n", name);
if (!show_only)
unlink(name);
}
}
closedir(dir);
}
Call setup_git_directory() much earlier This changes the calling convention of built-in commands and passes the "prefix" (i.e. pathname of $PWD relative to the project root level) down to them. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-29 09:44:25 +04:00
int cmd_prune(int argc, const char **argv, const char *prefix)
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
{
builtin-prune: make file-scope static struct to an argument. I want to make the first part of 'git prune' that marks the reachable objects callable as a library, so this starts the first step toward the goal by making the callchain to pass rev_info structure as an argument. No functionality change should be in this step. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-06 13:16:10 +03:00
struct rev_info revs;
builtin-prune.c: use parse_options() Using the OPT_DATE() introduced earlier, this updates builtin-prune to use parse_options(). Signed-off-by: Michele Ballabio <barra_cuda@katamail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-23 23:50:29 +03:00
const struct option options[] = {
OPT_BOOLEAN('n', NULL, &show_only,
"do not remove, show only"),
OPT_DATE(0, "expire", &expire,
"expire objects older than <time>"),
OPT_END()
};
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
builtin-prune: memory diet. Somehow we forgot to turn save_commit_buffer off while walking the reachable objects. Releasing the memory for commit object data that we do not use matters for large projects (for example, about 90MB is saved while traversing linux-2.6 history). Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-06 00:31:43 +03:00
save_commit_buffer = 0;
Call setup_git_directory() much earlier This changes the calling convention of built-in commands and passes the "prefix" (i.e. pathname of $PWD relative to the project root level) down to them. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-29 09:44:25 +04:00
init_revisions(&revs, prefix);
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
builtin-prune.c: use parse_options() Using the OPT_DATE() introduced earlier, this updates builtin-prune to use parse_options(). Signed-off-by: Michele Ballabio <barra_cuda@katamail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-23 23:50:29 +03:00
argc = parse_options(argc, argv, options, prune_usage, 0);
builtin-prune: protect objects listed on the command line Finally, this resurrects the documented behaviour to protect other objects listed on the command line from getting pruned. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-25 09:20:51 +03:00
while (argc--) {
unsigned char sha1[20];
const char *name = *argv++;
if (!get_sha1(name, sha1)) {
struct object *object = parse_object(sha1);
if (!object)
die("bad object: %s", name);
add_pending_object(&revs, object, "");
}
else
die("unrecognized argument: %s", name);
}
builtin-prune.c: use parse_options() Using the OPT_DATE() introduced earlier, this updates builtin-prune to use parse_options(). Signed-off-by: Michele Ballabio <barra_cuda@katamail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-23 23:50:29 +03:00
mark_reachable_objects(&revs, 1);
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
prune_object_dir(get_object_directory());
Make prune also run prune-packed Both the git-prune manpage and everday.txt say that git-prune should also prune unpacked objects that are also found in packs, by running git prune-packed. Junio thought this was "a regression when prune was rewritten as a built-in." So modify prune to call prune-packed again. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2006-10-23 03:01:23 +04:00
prune_packed_objects(show_only);
Make git prune remove temporary packs that look like write failures Write errors when repacking (eg, due to out-of-space conditions) can leave temporary packs (and possibly other files beginning with "tmp_") lying around which no existing codepath removes and which aren't obvious to the casual user. These can also be multi-megabyte files wasting noticeable space. Unfortunately there's no way to definitely tell in builtin-prune that a tmp_ file is not being used by a concurrent process, such as a fetch. However, it is documented that pruning should only be done on a quiet repository and --expire is honoured (using code from Johannes Schindelin, along with a test case he wrote) so that its safety is the same as that of loose object pruning. Since they might be signs of a problem (unlike orphaned loose objects) the names of any removed files are printed. Signed-off-by: David Tweed (david.tweed@gmail.com) Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-07 05:55:14 +03:00
remove_temporary_files();
builtin "git prune" This actually removes the objects to be pruned, unless you specify "-n" (at which point it will just tell you which files it would prune). This doesn't do the pack-file pruning that the shell-script used to do, but if somebody really wants to, they could add it easily enough. I wonder how useful it is, though, considering that "git repack -a -d" is just a lot more efficient and generates a better end result. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-06 21:16:22 +04:00
return 0;
}