#include "cache.h" #include "commit.h" #include "diff.h" #include "revision.h" #include "builtin.h" #include "reachable.h" #include "parse-options.h" static const char * const prune_usage[] = { "git prune [-n] [--expire ] [--] [...]", NULL }; static int show_only; static unsigned long expire; static int prune_tmp_object(char *path, const char *filename) { 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; } printf("Removing stale temporary file %s\n", fullpath); if (!show_only) unlink(fullpath); return 0; } 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; } if (!prefixcmp(de->d_name, "tmp_obj_")) { prune_tmp_object(path, de->d_name); 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); } } /* * 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_")) prune_tmp_object(dirname, de->d_name); closedir(dir); } int cmd_prune(int argc, const char **argv, const char *prefix) { struct rev_info revs; const struct option options[] = { OPT_BOOLEAN('n', NULL, &show_only, "do not remove, show only"), OPT_DATE(0, "expire", &expire, "expire objects older than "), OPT_END() }; save_commit_buffer = 0; init_revisions(&revs, prefix); argc = parse_options(argc, argv, options, prune_usage, 0); 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); } mark_reachable_objects(&revs, 1); prune_object_dir(get_object_directory()); prune_packed_objects(show_only); remove_temporary_files(); return 0; }