| #include "builtin.h" |
| #include "config.h" |
| #include "lockfile.h" |
| #include "object-store.h" |
| #include "repository.h" |
| #include "commit.h" |
| #include "refs.h" |
| #include "dir.h" |
| #include "tree-walk.h" |
| #include "diff.h" |
| #include "revision.h" |
| #include "reachable.h" |
| #include "worktree.h" |
| |
| /* NEEDSWORK: switch to using parse_options */ |
| static const char reflog_expire_usage[] = |
| N_("git reflog expire [--expire=<time>] " |
| "[--expire-unreachable=<time>] " |
| "[--rewrite] [--updateref] [--stale-fix] [--dry-run | -n] " |
| "[--verbose] [--all] <refs>..."); |
| static const char reflog_delete_usage[] = |
| N_("git reflog delete [--rewrite] [--updateref] " |
| "[--dry-run | -n] [--verbose] <refs>..."); |
| static const char reflog_exists_usage[] = |
| N_("git reflog exists <ref>"); |
| |
| static timestamp_t default_reflog_expire; |
| static timestamp_t default_reflog_expire_unreachable; |
| |
| struct cmd_reflog_expire_cb { |
| struct rev_info revs; |
| int stalefix; |
| timestamp_t expire_total; |
| timestamp_t expire_unreachable; |
| int recno; |
| }; |
| |
| struct expire_reflog_policy_cb { |
| enum { |
| UE_NORMAL, |
| UE_ALWAYS, |
| UE_HEAD |
| } unreachable_expire_kind; |
| struct commit_list *mark_list; |
| unsigned long mark_limit; |
| struct cmd_reflog_expire_cb cmd; |
| struct commit *tip_commit; |
| struct commit_list *tips; |
| }; |
| |
| struct collected_reflog { |
| struct object_id oid; |
| char reflog[FLEX_ARRAY]; |
| }; |
| |
| struct collect_reflog_cb { |
| struct collected_reflog **e; |
| int alloc; |
| int nr; |
| struct worktree *wt; |
| }; |
| |
| /* Remember to update object flag allocation in object.h */ |
| #define INCOMPLETE (1u<<10) |
| #define STUDYING (1u<<11) |
| #define REACHABLE (1u<<12) |
| |
| static int tree_is_complete(const struct object_id *oid) |
| { |
| struct tree_desc desc; |
| struct name_entry entry; |
| int complete; |
| struct tree *tree; |
| |
| tree = lookup_tree(the_repository, oid); |
| if (!tree) |
| return 0; |
| if (tree->object.flags & SEEN) |
| return 1; |
| if (tree->object.flags & INCOMPLETE) |
| return 0; |
| |
| if (!tree->buffer) { |
| enum object_type type; |
| unsigned long size; |
| void *data = read_object_file(oid, &type, &size); |
| if (!data) { |
| tree->object.flags |= INCOMPLETE; |
| return 0; |
| } |
| tree->buffer = data; |
| tree->size = size; |
| } |
| init_tree_desc(&desc, tree->buffer, tree->size); |
| complete = 1; |
| while (tree_entry(&desc, &entry)) { |
| if (!has_object_file(&entry.oid) || |
| (S_ISDIR(entry.mode) && !tree_is_complete(&entry.oid))) { |
| tree->object.flags |= INCOMPLETE; |
| complete = 0; |
| } |
| } |
| free_tree_buffer(tree); |
| |
| if (complete) |
| tree->object.flags |= SEEN; |
| return complete; |
| } |
| |
| static int commit_is_complete(struct commit *commit) |
| { |
| struct object_array study; |
| struct object_array found; |
| int is_incomplete = 0; |
| int i; |
| |
| /* early return */ |
| if (commit->object.flags & SEEN) |
| return 1; |
| if (commit->object.flags & INCOMPLETE) |
| return 0; |
| /* |
| * Find all commits that are reachable and are not marked as |
| * SEEN. Then make sure the trees and blobs contained are |
| * complete. After that, mark these commits also as SEEN. |
| * If some of the objects that are needed to complete this |
| * commit are missing, mark this commit as INCOMPLETE. |
| */ |
| memset(&study, 0, sizeof(study)); |
| memset(&found, 0, sizeof(found)); |
| add_object_array(&commit->object, NULL, &study); |
| add_object_array(&commit->object, NULL, &found); |
| commit->object.flags |= STUDYING; |
| while (study.nr) { |
| struct commit *c; |
| struct commit_list *parent; |
| |
| c = (struct commit *)object_array_pop(&study); |
| if (!c->object.parsed && !parse_object(the_repository, &c->object.oid)) |
| c->object.flags |= INCOMPLETE; |
| |
| if (c->object.flags & INCOMPLETE) { |
| is_incomplete = 1; |
| break; |
| } |
| else if (c->object.flags & SEEN) |
| continue; |
| for (parent = c->parents; parent; parent = parent->next) { |
| struct commit *p = parent->item; |
| if (p->object.flags & STUDYING) |
| continue; |
| p->object.flags |= STUDYING; |
| add_object_array(&p->object, NULL, &study); |
| add_object_array(&p->object, NULL, &found); |
| } |
| } |
| if (!is_incomplete) { |
| /* |
| * make sure all commits in "found" array have all the |
| * necessary objects. |
| */ |
| for (i = 0; i < found.nr; i++) { |
| struct commit *c = |
| (struct commit *)found.objects[i].item; |
| if (!tree_is_complete(get_commit_tree_oid(c))) { |
| is_incomplete = 1; |
| c->object.flags |= INCOMPLETE; |
| } |
| } |
| if (!is_incomplete) { |
| /* mark all found commits as complete, iow SEEN */ |
| for (i = 0; i < found.nr; i++) |
| found.objects[i].item->flags |= SEEN; |
| } |
| } |
| /* clear flags from the objects we traversed */ |
| for (i = 0; i < found.nr; i++) |
| found.objects[i].item->flags &= ~STUDYING; |
| if (is_incomplete) |
| commit->object.flags |= INCOMPLETE; |
| else { |
| /* |
| * If we come here, we have (1) traversed the ancestry chain |
| * from the "commit" until we reach SEEN commits (which are |
| * known to be complete), and (2) made sure that the commits |
| * encountered during the above traversal refer to trees that |
| * are complete. Which means that we know *all* the commits |
| * we have seen during this process are complete. |
| */ |
| for (i = 0; i < found.nr; i++) |
| found.objects[i].item->flags |= SEEN; |
| } |
| /* free object arrays */ |
| object_array_clear(&study); |
| object_array_clear(&found); |
| return !is_incomplete; |
| } |
| |
| static int keep_entry(struct commit **it, struct object_id *oid) |
| { |
| struct commit *commit; |
| |
| if (is_null_oid(oid)) |
| return 1; |
| commit = lookup_commit_reference_gently(the_repository, oid, 1); |
| if (!commit) |
| return 0; |
| |
| /* |
| * Make sure everything in this commit exists. |
| * |
| * We have walked all the objects reachable from the refs |
| * and cache earlier. The commits reachable by this commit |
| * must meet SEEN commits -- and then we should mark them as |
| * SEEN as well. |
| */ |
| if (!commit_is_complete(commit)) |
| return 0; |
| *it = commit; |
| return 1; |
| } |
| |
| /* |
| * Starting from commits in the cb->mark_list, mark commits that are |
| * reachable from them. Stop the traversal at commits older than |
| * the expire_limit and queue them back, so that the caller can call |
| * us again to restart the traversal with longer expire_limit. |
| */ |
| static void mark_reachable(struct expire_reflog_policy_cb *cb) |
| { |
| struct commit_list *pending; |
| timestamp_t expire_limit = cb->mark_limit; |
| struct commit_list *leftover = NULL; |
| |
| for (pending = cb->mark_list; pending; pending = pending->next) |
| pending->item->object.flags &= ~REACHABLE; |
| |
| pending = cb->mark_list; |
| while (pending) { |
| struct commit_list *parent; |
| struct commit *commit = pop_commit(&pending); |
| if (commit->object.flags & REACHABLE) |
| continue; |
| if (parse_commit(commit)) |
| continue; |
| commit->object.flags |= REACHABLE; |
| if (commit->date < expire_limit) { |
| commit_list_insert(commit, &leftover); |
| continue; |
| } |
| commit->object.flags |= REACHABLE; |
| parent = commit->parents; |
| while (parent) { |
| commit = parent->item; |
| parent = parent->next; |
| if (commit->object.flags & REACHABLE) |
| continue; |
| commit_list_insert(commit, &pending); |
| } |
| } |
| cb->mark_list = leftover; |
| } |
| |
| static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, struct object_id *oid) |
| { |
| /* |
| * We may or may not have the commit yet - if not, look it |
| * up using the supplied sha1. |
| */ |
| if (!commit) { |
| if (is_null_oid(oid)) |
| return 0; |
| |
| commit = lookup_commit_reference_gently(the_repository, oid, |
| 1); |
| |
| /* Not a commit -- keep it */ |
| if (!commit) |
| return 0; |
| } |
| |
| /* Reachable from the current ref? Don't prune. */ |
| if (commit->object.flags & REACHABLE) |
| return 0; |
| |
| if (cb->mark_list && cb->mark_limit) { |
| cb->mark_limit = 0; /* dig down to the root */ |
| mark_reachable(cb); |
| } |
| |
| return !(commit->object.flags & REACHABLE); |
| } |
| |
| /* |
| * Return true iff the specified reflog entry should be expired. |
| */ |
| static int should_expire_reflog_ent(struct object_id *ooid, struct object_id *noid, |
| const char *email, timestamp_t timestamp, int tz, |
| const char *message, void *cb_data) |
| { |
| struct expire_reflog_policy_cb *cb = cb_data; |
| struct commit *old_commit, *new_commit; |
| |
| if (timestamp < cb->cmd.expire_total) |
| return 1; |
| |
| old_commit = new_commit = NULL; |
| if (cb->cmd.stalefix && |
| (!keep_entry(&old_commit, ooid) || !keep_entry(&new_commit, noid))) |
| return 1; |
| |
| if (timestamp < cb->cmd.expire_unreachable) { |
| if (cb->unreachable_expire_kind == UE_ALWAYS) |
| return 1; |
| if (unreachable(cb, old_commit, ooid) || unreachable(cb, new_commit, noid)) |
| return 1; |
| } |
| |
| if (cb->cmd.recno && --(cb->cmd.recno) == 0) |
| return 1; |
| |
| return 0; |
| } |
| |
| static int push_tip_to_list(const char *refname, const struct object_id *oid, |
| int flags, void *cb_data) |
| { |
| struct commit_list **list = cb_data; |
| struct commit *tip_commit; |
| if (flags & REF_ISSYMREF) |
| return 0; |
| tip_commit = lookup_commit_reference_gently(the_repository, oid, 1); |
| if (!tip_commit) |
| return 0; |
| commit_list_insert(tip_commit, list); |
| return 0; |
| } |
| |
| static int is_head(const char *refname) |
| { |
| switch (ref_type(refname)) { |
| case REF_TYPE_OTHER_PSEUDOREF: |
| case REF_TYPE_MAIN_PSEUDOREF: |
| if (parse_worktree_ref(refname, NULL, NULL, &refname)) |
| BUG("not a worktree ref: %s", refname); |
| break; |
| default: |
| break; |
| } |
| return !strcmp(refname, "HEAD"); |
| } |
| |
| static void reflog_expiry_prepare(const char *refname, |
| const struct object_id *oid, |
| void *cb_data) |
| { |
| struct expire_reflog_policy_cb *cb = cb_data; |
| |
| if (!cb->cmd.expire_unreachable || is_head(refname)) { |
| cb->tip_commit = NULL; |
| cb->unreachable_expire_kind = UE_HEAD; |
| } else { |
| cb->tip_commit = lookup_commit_reference_gently(the_repository, |
| oid, 1); |
| if (!cb->tip_commit) |
| cb->unreachable_expire_kind = UE_ALWAYS; |
| else |
| cb->unreachable_expire_kind = UE_NORMAL; |
| } |
| |
| if (cb->cmd.expire_unreachable <= cb->cmd.expire_total) |
| cb->unreachable_expire_kind = UE_ALWAYS; |
| |
| cb->mark_list = NULL; |
| cb->tips = NULL; |
| if (cb->unreachable_expire_kind != UE_ALWAYS) { |
| if (cb->unreachable_expire_kind == UE_HEAD) { |
| struct commit_list *elem; |
| |
| for_each_ref(push_tip_to_list, &cb->tips); |
| for (elem = cb->tips; elem; elem = elem->next) |
| commit_list_insert(elem->item, &cb->mark_list); |
| } else { |
| commit_list_insert(cb->tip_commit, &cb->mark_list); |
| } |
| cb->mark_limit = cb->cmd.expire_total; |
| mark_reachable(cb); |
| } |
| } |
| |
| static void reflog_expiry_cleanup(void *cb_data) |
| { |
| struct expire_reflog_policy_cb *cb = cb_data; |
| |
| if (cb->unreachable_expire_kind != UE_ALWAYS) { |
| if (cb->unreachable_expire_kind == UE_HEAD) { |
| struct commit_list *elem; |
| for (elem = cb->tips; elem; elem = elem->next) |
| clear_commit_marks(elem->item, REACHABLE); |
| free_commit_list(cb->tips); |
| } else { |
| clear_commit_marks(cb->tip_commit, REACHABLE); |
| } |
| } |
| } |
| |
| static int collect_reflog(const char *ref, const struct object_id *oid, int unused, void *cb_data) |
| { |
| struct collected_reflog *e; |
| struct collect_reflog_cb *cb = cb_data; |
| struct strbuf newref = STRBUF_INIT; |
| |
| /* |
| * Avoid collecting the same shared ref multiple times because |
| * they are available via all worktrees. |
| */ |
| if (!cb->wt->is_current && ref_type(ref) == REF_TYPE_NORMAL) |
| return 0; |
| |
| strbuf_worktree_ref(cb->wt, &newref, ref); |
| FLEX_ALLOC_STR(e, reflog, newref.buf); |
| strbuf_release(&newref); |
| |
| oidcpy(&e->oid, oid); |
| ALLOC_GROW(cb->e, cb->nr + 1, cb->alloc); |
| cb->e[cb->nr++] = e; |
| return 0; |
| } |
| |
| static struct reflog_expire_cfg { |
| struct reflog_expire_cfg *next; |
| timestamp_t expire_total; |
| timestamp_t expire_unreachable; |
| char pattern[FLEX_ARRAY]; |
| } *reflog_expire_cfg, **reflog_expire_cfg_tail; |
| |
| static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len) |
| { |
| struct reflog_expire_cfg *ent; |
| |
| if (!reflog_expire_cfg_tail) |
| reflog_expire_cfg_tail = &reflog_expire_cfg; |
| |
| for (ent = reflog_expire_cfg; ent; ent = ent->next) |
| if (!strncmp(ent->pattern, pattern, len) && |
| ent->pattern[len] == '\0') |
| return ent; |
| |
| FLEX_ALLOC_MEM(ent, pattern, pattern, len); |
| *reflog_expire_cfg_tail = ent; |
| reflog_expire_cfg_tail = &(ent->next); |
| return ent; |
| } |
| |
| /* expiry timer slot */ |
| #define EXPIRE_TOTAL 01 |
| #define EXPIRE_UNREACH 02 |
| |
| static int reflog_expire_config(const char *var, const char *value, void *cb) |
| { |
| const char *pattern, *key; |
| size_t pattern_len; |
| timestamp_t expire; |
| int slot; |
| struct reflog_expire_cfg *ent; |
| |
| if (parse_config_key(var, "gc", &pattern, &pattern_len, &key) < 0) |
| return git_default_config(var, value, cb); |
| |
| if (!strcmp(key, "reflogexpire")) { |
| slot = EXPIRE_TOTAL; |
| if (git_config_expiry_date(&expire, var, value)) |
| return -1; |
| } else if (!strcmp(key, "reflogexpireunreachable")) { |
| slot = EXPIRE_UNREACH; |
| if (git_config_expiry_date(&expire, var, value)) |
| return -1; |
| } else |
| return git_default_config(var, value, cb); |
| |
| if (!pattern) { |
| switch (slot) { |
| case EXPIRE_TOTAL: |
| default_reflog_expire = expire; |
| break; |
| case EXPIRE_UNREACH: |
| default_reflog_expire_unreachable = expire; |
| break; |
| } |
| return 0; |
| } |
| |
| ent = find_cfg_ent(pattern, pattern_len); |
| if (!ent) |
| return -1; |
| switch (slot) { |
| case EXPIRE_TOTAL: |
| ent->expire_total = expire; |
| break; |
| case EXPIRE_UNREACH: |
| ent->expire_unreachable = expire; |
| break; |
| } |
| return 0; |
| } |
| |
| static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, const char *ref) |
| { |
| struct reflog_expire_cfg *ent; |
| |
| if (slot == (EXPIRE_TOTAL|EXPIRE_UNREACH)) |
| return; /* both given explicitly -- nothing to tweak */ |
| |
| for (ent = reflog_expire_cfg; ent; ent = ent->next) { |
| if (!wildmatch(ent->pattern, ref, 0)) { |
| if (!(slot & EXPIRE_TOTAL)) |
| cb->expire_total = ent->expire_total; |
| if (!(slot & EXPIRE_UNREACH)) |
| cb->expire_unreachable = ent->expire_unreachable; |
| return; |
| } |
| } |
| |
| /* |
| * If unconfigured, make stash never expire |
| */ |
| if (!strcmp(ref, "refs/stash")) { |
| if (!(slot & EXPIRE_TOTAL)) |
| cb->expire_total = 0; |
| if (!(slot & EXPIRE_UNREACH)) |
| cb->expire_unreachable = 0; |
| return; |
| } |
| |
| /* Nothing matched -- use the default value */ |
| if (!(slot & EXPIRE_TOTAL)) |
| cb->expire_total = default_reflog_expire; |
| if (!(slot & EXPIRE_UNREACH)) |
| cb->expire_unreachable = default_reflog_expire_unreachable; |
| } |
| |
| static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) |
| { |
| struct expire_reflog_policy_cb cb; |
| timestamp_t now = time(NULL); |
| int i, status, do_all, all_worktrees = 1; |
| int explicit_expiry = 0; |
| unsigned int flags = 0; |
| |
| default_reflog_expire_unreachable = now - 30 * 24 * 3600; |
| default_reflog_expire = now - 90 * 24 * 3600; |
| git_config(reflog_expire_config, NULL); |
| |
| save_commit_buffer = 0; |
| do_all = status = 0; |
| memset(&cb, 0, sizeof(cb)); |
| |
| cb.cmd.expire_total = default_reflog_expire; |
| cb.cmd.expire_unreachable = default_reflog_expire_unreachable; |
| |
| for (i = 1; i < argc; i++) { |
| const char *arg = argv[i]; |
| |
| if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) |
| flags |= EXPIRE_REFLOGS_DRY_RUN; |
| else if (skip_prefix(arg, "--expire=", &arg)) { |
| if (parse_expiry_date(arg, &cb.cmd.expire_total)) |
| die(_("'%s' is not a valid timestamp"), arg); |
| explicit_expiry |= EXPIRE_TOTAL; |
| } |
| else if (skip_prefix(arg, "--expire-unreachable=", &arg)) { |
| if (parse_expiry_date(arg, &cb.cmd.expire_unreachable)) |
| die(_("'%s' is not a valid timestamp"), arg); |
| explicit_expiry |= EXPIRE_UNREACH; |
| } |
| else if (!strcmp(arg, "--stale-fix")) |
| cb.cmd.stalefix = 1; |
| else if (!strcmp(arg, "--rewrite")) |
| flags |= EXPIRE_REFLOGS_REWRITE; |
| else if (!strcmp(arg, "--updateref")) |
| flags |= EXPIRE_REFLOGS_UPDATE_REF; |
| else if (!strcmp(arg, "--all")) |
| do_all = 1; |
| else if (!strcmp(arg, "--single-worktree")) |
| all_worktrees = 0; |
| else if (!strcmp(arg, "--verbose")) |
| flags |= EXPIRE_REFLOGS_VERBOSE; |
| else if (!strcmp(arg, "--")) { |
| i++; |
| break; |
| } |
| else if (arg[0] == '-') |
| usage(_(reflog_expire_usage)); |
| else |
| break; |
| } |
| |
| /* |
| * We can trust the commits and objects reachable from refs |
| * even in older repository. We cannot trust what's reachable |
| * from reflog if the repository was pruned with older git. |
| */ |
| if (cb.cmd.stalefix) { |
| repo_init_revisions(the_repository, &cb.cmd.revs, prefix); |
| if (flags & EXPIRE_REFLOGS_VERBOSE) |
| printf(_("Marking reachable objects...")); |
| mark_reachable_objects(&cb.cmd.revs, 0, 0, NULL); |
| if (flags & EXPIRE_REFLOGS_VERBOSE) |
| putchar('\n'); |
| } |
| |
| if (do_all) { |
| struct collect_reflog_cb collected; |
| struct worktree **worktrees, **p; |
| int i; |
| |
| memset(&collected, 0, sizeof(collected)); |
| worktrees = get_worktrees(0); |
| for (p = worktrees; *p; p++) { |
| if (!all_worktrees && !(*p)->is_current) |
| continue; |
| collected.wt = *p; |
| refs_for_each_reflog(get_worktree_ref_store(*p), |
| collect_reflog, &collected); |
| } |
| free_worktrees(worktrees); |
| for (i = 0; i < collected.nr; i++) { |
| struct collected_reflog *e = collected.e[i]; |
| set_reflog_expiry_param(&cb.cmd, explicit_expiry, e->reflog); |
| status |= reflog_expire(e->reflog, &e->oid, flags, |
| reflog_expiry_prepare, |
| should_expire_reflog_ent, |
| reflog_expiry_cleanup, |
| &cb); |
| free(e); |
| } |
| free(collected.e); |
| } |
| |
| for (; i < argc; i++) { |
| char *ref; |
| struct object_id oid; |
| if (!dwim_log(argv[i], strlen(argv[i]), &oid, &ref)) { |
| status |= error(_("%s points nowhere!"), argv[i]); |
| continue; |
| } |
| set_reflog_expiry_param(&cb.cmd, explicit_expiry, ref); |
| status |= reflog_expire(ref, &oid, flags, |
| reflog_expiry_prepare, |
| should_expire_reflog_ent, |
| reflog_expiry_cleanup, |
| &cb); |
| } |
| return status; |
| } |
| |
| static int count_reflog_ent(struct object_id *ooid, struct object_id *noid, |
| const char *email, timestamp_t timestamp, int tz, |
| const char *message, void *cb_data) |
| { |
| struct expire_reflog_policy_cb *cb = cb_data; |
| if (!cb->cmd.expire_total || timestamp < cb->cmd.expire_total) |
| cb->cmd.recno++; |
| return 0; |
| } |
| |
| static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) |
| { |
| struct expire_reflog_policy_cb cb; |
| int i, status = 0; |
| unsigned int flags = 0; |
| |
| memset(&cb, 0, sizeof(cb)); |
| |
| for (i = 1; i < argc; i++) { |
| const char *arg = argv[i]; |
| if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) |
| flags |= EXPIRE_REFLOGS_DRY_RUN; |
| else if (!strcmp(arg, "--rewrite")) |
| flags |= EXPIRE_REFLOGS_REWRITE; |
| else if (!strcmp(arg, "--updateref")) |
| flags |= EXPIRE_REFLOGS_UPDATE_REF; |
| else if (!strcmp(arg, "--verbose")) |
| flags |= EXPIRE_REFLOGS_VERBOSE; |
| else if (!strcmp(arg, "--")) { |
| i++; |
| break; |
| } |
| else if (arg[0] == '-') |
| usage(_(reflog_delete_usage)); |
| else |
| break; |
| } |
| |
| if (argc - i < 1) |
| return error(_("no reflog specified to delete")); |
| |
| for ( ; i < argc; i++) { |
| const char *spec = strstr(argv[i], "@{"); |
| struct object_id oid; |
| char *ep, *ref; |
| int recno; |
| |
| if (!spec) { |
| status |= error(_("not a reflog: %s"), argv[i]); |
| continue; |
| } |
| |
| if (!dwim_log(argv[i], spec - argv[i], &oid, &ref)) { |
| status |= error(_("no reflog for '%s'"), argv[i]); |
| continue; |
| } |
| |
| recno = strtoul(spec + 2, &ep, 10); |
| if (*ep == '}') { |
| cb.cmd.recno = -recno; |
| for_each_reflog_ent(ref, count_reflog_ent, &cb); |
| } else { |
| cb.cmd.expire_total = approxidate(spec + 2); |
| for_each_reflog_ent(ref, count_reflog_ent, &cb); |
| cb.cmd.expire_total = 0; |
| } |
| |
| status |= reflog_expire(ref, &oid, flags, |
| reflog_expiry_prepare, |
| should_expire_reflog_ent, |
| reflog_expiry_cleanup, |
| &cb); |
| free(ref); |
| } |
| return status; |
| } |
| |
| static int cmd_reflog_exists(int argc, const char **argv, const char *prefix) |
| { |
| int i, start = 0; |
| |
| for (i = 1; i < argc; i++) { |
| const char *arg = argv[i]; |
| if (!strcmp(arg, "--")) { |
| i++; |
| break; |
| } |
| else if (arg[0] == '-') |
| usage(_(reflog_exists_usage)); |
| else |
| break; |
| } |
| |
| start = i; |
| |
| if (argc - start != 1) |
| usage(_(reflog_exists_usage)); |
| |
| if (check_refname_format(argv[start], REFNAME_ALLOW_ONELEVEL)) |
| die(_("invalid ref format: %s"), argv[start]); |
| return !reflog_exists(argv[start]); |
| } |
| |
| /* |
| * main "reflog" |
| */ |
| |
| static const char reflog_usage[] = |
| N_("git reflog [ show | expire | delete | exists ]"); |
| |
| int cmd_reflog(int argc, const char **argv, const char *prefix) |
| { |
| if (argc > 1 && !strcmp(argv[1], "-h")) |
| usage(_(reflog_usage)); |
| |
| /* With no command, we default to showing it. */ |
| if (argc < 2 || *argv[1] == '-') |
| return cmd_log_reflog(argc, argv, prefix); |
| |
| if (!strcmp(argv[1], "show")) |
| return cmd_log_reflog(argc - 1, argv + 1, prefix); |
| |
| if (!strcmp(argv[1], "expire")) |
| return cmd_reflog_expire(argc - 1, argv + 1, prefix); |
| |
| if (!strcmp(argv[1], "delete")) |
| return cmd_reflog_delete(argc - 1, argv + 1, prefix); |
| |
| if (!strcmp(argv[1], "exists")) |
| return cmd_reflog_exists(argc - 1, argv + 1, prefix); |
| |
| return cmd_log_reflog(argc, argv, prefix); |
| } |