mirror of
https://github.com/git/git.git
synced 2024-11-20 13:54:45 +01:00
1b1dd23f2d
When you misuse a git command, you are shown the usage string. But this is currently shown in the dashed form. So if you just copy what you see, it will not work, when the dashed form is no longer supported. This patch makes git commands show the dash-less version. For shell scripts that do not specify OPTIONS_SPEC, git-sh-setup.sh generates a dash-less usage string now. Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
163 lines
3.4 KiB
C
163 lines
3.4 KiB
C
#include "cache.h"
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#include "commit.h"
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#include "diff.h"
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#include "revision.h"
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#include "builtin.h"
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#include "reachable.h"
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#include "parse-options.h"
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static const char * const prune_usage[] = {
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"git prune [-n] [--expire <time>] [--] [<head>...]",
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NULL
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};
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static int show_only;
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static unsigned long expire;
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static int prune_object(char *path, const char *filename, const unsigned char *sha1)
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{
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const char *fullpath = mkpath("%s/%s", path, filename);
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if (expire) {
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struct stat st;
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if (lstat(fullpath, &st))
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return error("Could not stat '%s'", fullpath);
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if (st.st_mtime > expire)
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return 0;
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}
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if (show_only) {
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enum object_type type = sha1_object_info(sha1, NULL);
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printf("%s %s\n", sha1_to_hex(sha1),
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(type > 0) ? typename(type) : "unknown");
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} else
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unlink(fullpath);
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return 0;
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}
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static int prune_dir(int i, char *path)
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{
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DIR *dir = opendir(path);
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struct dirent *de;
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if (!dir)
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return 0;
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while ((de = readdir(dir)) != NULL) {
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char name[100];
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unsigned char sha1[20];
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int len = strlen(de->d_name);
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switch (len) {
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case 2:
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if (de->d_name[1] != '.')
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break;
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case 1:
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if (de->d_name[0] != '.')
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break;
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continue;
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case 38:
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sprintf(name, "%02x", i);
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memcpy(name+2, de->d_name, len+1);
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if (get_sha1_hex(name, sha1) < 0)
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break;
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/*
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* Do we know about this object?
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* It must have been reachable
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*/
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if (lookup_object(sha1))
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continue;
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prune_object(path, de->d_name, sha1);
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continue;
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}
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fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
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}
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if (!show_only)
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rmdir(path);
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closedir(dir);
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return 0;
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}
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static void prune_object_dir(const char *path)
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{
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int i;
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for (i = 0; i < 256; i++) {
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static char dir[4096];
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sprintf(dir, "%s/%02x", path, i);
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prune_dir(i, dir);
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}
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}
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/*
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* Write errors (particularly out of space) can result in
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* failed temporary packs (and more rarely indexes and other
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* files begining with "tmp_") accumulating in the
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* object directory.
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*/
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static void remove_temporary_files(void)
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{
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DIR *dir;
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struct dirent *de;
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char* dirname=get_object_directory();
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dir = opendir(dirname);
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if (!dir) {
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fprintf(stderr, "Unable to open object directory %s\n",
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dirname);
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return;
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}
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while ((de = readdir(dir)) != NULL) {
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if (!prefixcmp(de->d_name, "tmp_")) {
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char name[PATH_MAX];
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int c = snprintf(name, PATH_MAX, "%s/%s",
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dirname, de->d_name);
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if (c < 0 || c >= PATH_MAX)
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continue;
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if (expire) {
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struct stat st;
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if (stat(name, &st) != 0 || st.st_mtime >= expire)
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continue;
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}
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printf("Removing stale temporary file %s\n", name);
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if (!show_only)
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unlink(name);
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}
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}
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closedir(dir);
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}
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int cmd_prune(int argc, const char **argv, const char *prefix)
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{
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struct rev_info revs;
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const struct option options[] = {
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OPT_BOOLEAN('n', NULL, &show_only,
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"do not remove, show only"),
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OPT_DATE(0, "expire", &expire,
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"expire objects older than <time>"),
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OPT_END()
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};
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save_commit_buffer = 0;
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init_revisions(&revs, prefix);
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argc = parse_options(argc, argv, options, prune_usage, 0);
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while (argc--) {
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unsigned char sha1[20];
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const char *name = *argv++;
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if (!get_sha1(name, sha1)) {
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struct object *object = parse_object(sha1);
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if (!object)
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die("bad object: %s", name);
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add_pending_object(&revs, object, "");
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}
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else
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die("unrecognized argument: %s", name);
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}
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mark_reachable_objects(&revs, 1);
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prune_object_dir(get_object_directory());
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prune_packed_objects(show_only);
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remove_temporary_files();
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return 0;
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}
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