#include "cache.h" #include "commit.h" #include "diff.h" #include "revision.h" #include "builtin.h" #include "reachable.h" #include "parse-options.h" #include "progress.h" #include "dir.h" static const char * const prune_usage[] = { N_("git prune [-n] [-v] [--expire <time>] [--] [<head>...]"), NULL }; static int show_only; static int verbose; static unsigned long expire; static int show_progress = -1; static int prune_tmp_file(const char *fullpath) { struct stat st; if (lstat(fullpath, &st)) return error("Could not stat '%s'", fullpath); if (st.st_mtime > expire) return 0; if (show_only || verbose) printf("Removing stale temporary file %s\n", fullpath); if (!show_only) unlink_or_warn(fullpath); return 0; } static int prune_object(const unsigned char *sha1, const char *fullpath, void *data) { struct stat st; /* * Do we know about this object? * It must have been reachable */ if (lookup_object(sha1)) return 0; if (lstat(fullpath, &st)) { /* report errors, but do not stop pruning */ error("Could not stat '%s'", fullpath); return 0; } if (st.st_mtime > expire) return 0; if (show_only || verbose) { enum object_type type = sha1_object_info(sha1, NULL); printf("%s %s\n", sha1_to_hex(sha1), (type > 0) ? typename(type) : "unknown"); } if (!show_only) unlink_or_warn(fullpath); return 0; } static int prune_cruft(const char *basename, const char *path, void *data) { if (starts_with(basename, "tmp_obj_")) prune_tmp_file(path); else fprintf(stderr, "bad sha1 file: %s\n", path); return 0; } static int prune_subdir(int nr, const char *path, void *data) { if (!show_only) rmdir(path); return 0; } static int prune_worktree(const char *id, struct strbuf *reason) { struct stat st; char *path; int fd, len; if (!is_directory(git_path("worktrees/%s", id))) { strbuf_addf(reason, _("Removing worktrees/%s: not a valid directory"), id); return 1; } if (file_exists(git_path("worktrees/%s/locked", id))) return 0; if (stat(git_path("worktrees/%s/gitdir", id), &st)) { strbuf_addf(reason, _("Removing worktrees/%s: gitdir file does not exist"), id); return 1; } fd = open(git_path("worktrees/%s/gitdir", id), O_RDONLY); if (fd < 0) { strbuf_addf(reason, _("Removing worktrees/%s: unable to read gitdir file (%s)"), id, strerror(errno)); return 1; } len = st.st_size; path = xmalloc(len + 1); read_in_full(fd, path, len); close(fd); while (len && (path[len - 1] == '\n' || path[len - 1] == '\r')) len--; if (!len) { strbuf_addf(reason, _("Removing worktrees/%s: invalid gitdir file"), id); free(path); return 1; } path[len] = '\0'; if (!file_exists(path)) { struct stat st_link; free(path); /* * the repo is moved manually and has not been * accessed since? */ if (!stat(git_path("worktrees/%s/link", id), &st_link) && st_link.st_nlink > 1) return 0; if (st.st_mtime <= expire) { strbuf_addf(reason, _("Removing worktrees/%s: gitdir file points to non-existent location"), id); return 1; } else { return 0; } } free(path); return 0; } static void prune_worktrees(void) { struct strbuf reason = STRBUF_INIT; struct strbuf path = STRBUF_INIT; DIR *dir = opendir(git_path("worktrees")); struct dirent *d; int ret; if (!dir) return; while ((d = readdir(dir)) != NULL) { if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, "..")) continue; strbuf_reset(&reason); if (!prune_worktree(d->d_name, &reason)) continue; if (show_only || verbose) printf("%s\n", reason.buf); if (show_only) continue; strbuf_reset(&path); strbuf_addstr(&path, git_path("worktrees/%s", d->d_name)); ret = remove_dir_recursively(&path, 0); if (ret < 0 && errno == ENOTDIR) ret = unlink(path.buf); if (ret) error(_("failed to remove: %s"), strerror(errno)); } closedir(dir); if (!show_only) rmdir(git_path("worktrees")); strbuf_release(&reason); strbuf_release(&path); } /* * Write errors (particularly out of space) can result in * failed temporary packs (and more rarely indexes and other * files beginning with "tmp_") accumulating in the object * and the pack directories. */ static void remove_temporary_files(const char *path) { DIR *dir; struct dirent *de; dir = opendir(path); if (!dir) { fprintf(stderr, "Unable to open directory %s\n", path); return; } while ((de = readdir(dir)) != NULL) if (starts_with(de->d_name, "tmp_")) prune_tmp_file(mkpath("%s/%s", path, de->d_name)); closedir(dir); } int cmd_prune(int argc, const char **argv, const char *prefix) { struct rev_info revs; struct progress *progress = NULL; int do_prune_worktrees = 0; const struct option options[] = { OPT__DRY_RUN(&show_only, N_("do not remove, show only")), OPT__VERBOSE(&verbose, N_("report pruned objects")), OPT_BOOL(0, "progress", &show_progress, N_("show progress")), OPT_BOOL(0, "worktrees", &do_prune_worktrees, N_("prune .git/worktrees")), OPT_EXPIRY_DATE(0, "expire", &expire, N_("expire objects older than <time>")), OPT_END() }; char *s; expire = ULONG_MAX; save_commit_buffer = 0; check_replace_refs = 0; ref_paranoia = 1; init_revisions(&revs, prefix); argc = parse_options(argc, argv, prefix, options, prune_usage, 0); if (do_prune_worktrees) { if (argc) die(_("--worktrees does not take extra arguments")); prune_worktrees(); return 0; } while (argc--) { unsigned char sha1[20]; const char *name = *argv++; if (!get_sha1(name, sha1)) { struct object *object = parse_object_or_die(sha1, name); add_pending_object(&revs, object, ""); } else die("unrecognized argument: %s", name); } if (show_progress == -1) show_progress = isatty(2); if (show_progress) progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2); mark_reachable_objects(&revs, 1, expire, progress); stop_progress(&progress); for_each_loose_file_in_objdir(get_object_directory(), prune_object, prune_cruft, prune_subdir, NULL); prune_packed_objects(show_only ? PRUNE_PACKED_DRY_RUN : 0); remove_temporary_files(get_object_directory()); s = mkpathdup("%s/pack", get_object_directory()); remove_temporary_files(s); free(s); if (is_repository_shallow()) prune_shallow(show_only); return 0; }