mirror of
https://github.com/git/git.git
synced 2024-12-03 23:14:23 +08:00
026aa93818
This reverts commit 9b088c4e39.
Protecting 'mature' objects does not make it any safer. We should
admit that git-prune is inherently unsafe when run in parallel with
other operations without involving unwarranted locking overhead,
and with the latest git, even rebase and reset would not immediately
create crufts anyway.
106 lines
1.9 KiB
C
106 lines
1.9 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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static const char prune_usage[] = "git-prune [-n]";
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static int show_only;
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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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char buf[20];
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const char *type;
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if (show_only) {
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if (sha1_object_info(sha1, buf, NULL))
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type = "unknown";
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else
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type = buf;
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printf("%s %s\n", sha1_to_hex(sha1), type);
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return 0;
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}
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unlink(mkpath("%s/%s", path, filename));
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rmdir(path);
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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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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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int cmd_prune(int argc, const char **argv, const char *prefix)
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{
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int i;
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struct rev_info revs;
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for (i = 1; i < argc; i++) {
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const char *arg = argv[i];
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if (!strcmp(arg, "-n")) {
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show_only = 1;
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continue;
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}
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usage(prune_usage);
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}
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save_commit_buffer = 0;
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init_revisions(&revs, prefix);
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mark_reachable_objects(&revs, 1);
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prune_object_dir(get_object_directory());
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sync();
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prune_packed_objects(show_only);
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return 0;
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}
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