diff options
| -rw-r--r-- | refs/packed-backend.c | 193 | ||||
| -rw-r--r-- | refs/packed-backend.h | 8 |
2 files changed, 0 insertions, 201 deletions
diff --git a/refs/packed-backend.c b/refs/packed-backend.c index 9d5f76b..0279aec 100644 --- a/refs/packed-backend.c +++ b/refs/packed-backend.c @@ -92,19 +92,6 @@ struct ref_store *packed_ref_store_create(const char *path, } /* - * Die if refs is not the main ref store. caller is used in any - * necessary error messages. - */ -static void packed_assert_main_repository(struct packed_ref_store *refs, - const char *caller) -{ - if (refs->store_flags & REF_STORE_MAIN) - return; - - die("BUG: operation %s only allowed for main ref store", caller); -} - -/* * Downcast `ref_store` to `packed_ref_store`. Die if `ref_store` is * not a `packed_ref_store`. Also die if `packed_ref_store` doesn't * support at least the flags specified in `required_flags`. `caller` @@ -322,40 +309,6 @@ static struct ref_dir *get_packed_refs(struct packed_ref_store *refs) } /* - * Add or overwrite a reference in the in-memory packed reference - * cache. This may only be called while the packed-refs file is locked - * (see packed_refs_lock()). To actually write the packed-refs file, - * call commit_packed_refs(). - */ -void add_packed_ref(struct ref_store *ref_store, - const char *refname, const struct object_id *oid) -{ - struct packed_ref_store *refs = - packed_downcast(ref_store, REF_STORE_WRITE, - "add_packed_ref"); - struct ref_dir *packed_refs; - struct ref_entry *packed_entry; - - if (!is_lock_file_locked(&refs->lock)) - die("BUG: packed refs not locked"); - - if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) - die("Reference has invalid format: '%s'", refname); - - packed_refs = get_packed_refs(refs); - packed_entry = find_ref_entry(packed_refs, refname); - if (packed_entry) { - /* Overwrite the existing entry: */ - oidcpy(&packed_entry->u.value.oid, oid); - packed_entry->flag = REF_ISPACKED; - oidclr(&packed_entry->u.value.peeled); - } else { - packed_entry = create_ref_entry(refname, oid, REF_ISPACKED); - add_ref_entry(packed_refs, packed_entry); - } -} - -/* * Return the ref_entry for the given refname from the packed * references. If it does not exist, return NULL. */ @@ -596,152 +549,6 @@ int packed_refs_is_locked(struct ref_store *ref_store) static const char PACKED_REFS_HEADER[] = "# pack-refs with: peeled fully-peeled \n"; -/* - * Write the current version of the packed refs cache from memory to - * disk. The packed-refs file must already be locked for writing (see - * packed_refs_lock()). Return zero on success. On errors, rollback - * the lockfile, write an error message to `err`, and return a nonzero - * value. - */ -int commit_packed_refs(struct ref_store *ref_store, struct strbuf *err) -{ - struct packed_ref_store *refs = - packed_downcast(ref_store, REF_STORE_WRITE | REF_STORE_MAIN, - "commit_packed_refs"); - struct packed_ref_cache *packed_ref_cache = - get_packed_ref_cache(refs); - int ok; - int ret = -1; - struct strbuf sb = STRBUF_INIT; - FILE *out; - struct ref_iterator *iter; - char *packed_refs_path; - - if (!is_lock_file_locked(&refs->lock)) - die("BUG: commit_packed_refs() called when unlocked"); - - /* - * If packed-refs is a symlink, we want to overwrite the - * symlinked-to file, not the symlink itself. Also, put the - * staging file next to it: - */ - packed_refs_path = get_locked_file_path(&refs->lock); - strbuf_addf(&sb, "%s.new", packed_refs_path); - if (create_tempfile(&refs->tempfile, sb.buf) < 0) { - strbuf_addf(err, "unable to create file %s: %s", - sb.buf, strerror(errno)); - strbuf_release(&sb); - goto out; - } - strbuf_release(&sb); - - out = fdopen_tempfile(&refs->tempfile, "w"); - if (!out) { - strbuf_addf(err, "unable to fdopen packed-refs tempfile: %s", - strerror(errno)); - goto error; - } - - if (fprintf(out, "%s", PACKED_REFS_HEADER) < 0) { - strbuf_addf(err, "error writing to %s: %s", - get_tempfile_path(&refs->tempfile), strerror(errno)); - goto error; - } - - iter = cache_ref_iterator_begin(packed_ref_cache->cache, NULL, 0); - while ((ok = ref_iterator_advance(iter)) == ITER_OK) { - struct object_id peeled; - int peel_error = ref_iterator_peel(iter, &peeled); - - if (write_packed_entry(out, iter->refname, iter->oid->hash, - peel_error ? NULL : peeled.hash)) { - strbuf_addf(err, "error writing to %s: %s", - get_tempfile_path(&refs->tempfile), - strerror(errno)); - ref_iterator_abort(iter); - goto error; - } - } - - if (ok != ITER_DONE) { - strbuf_addf(err, "unable to rewrite packed-refs file: " - "error iterating over old contents"); - goto error; - } - - if (rename_tempfile(&refs->tempfile, packed_refs_path)) { - strbuf_addf(err, "error replacing %s: %s", - refs->path, strerror(errno)); - goto out; - } - - ret = 0; - goto out; - -error: - delete_tempfile(&refs->tempfile); - -out: - free(packed_refs_path); - return ret; -} - -/* - * Rewrite the packed-refs file, omitting any refs listed in - * 'refnames'. On error, leave packed-refs unchanged, write an error - * message to 'err', and return a nonzero value. The packed refs lock - * must be held when calling this function; it will still be held when - * the function returns. - * - * The refs in 'refnames' needn't be sorted. `err` must not be NULL. - */ -int repack_without_refs(struct ref_store *ref_store, - struct string_list *refnames, struct strbuf *err) -{ - struct packed_ref_store *refs = - packed_downcast(ref_store, REF_STORE_WRITE | REF_STORE_MAIN, - "repack_without_refs"); - struct ref_dir *packed; - struct string_list_item *refname; - int needs_repacking = 0, removed = 0; - - packed_assert_main_repository(refs, "repack_without_refs"); - assert(err); - - if (!is_lock_file_locked(&refs->lock)) - die("BUG: repack_without_refs called without holding lock"); - - /* Look for a packed ref */ - for_each_string_list_item(refname, refnames) { - if (get_packed_ref(refs, refname->string)) { - needs_repacking = 1; - break; - } - } - - /* Avoid locking if we have nothing to do */ - if (!needs_repacking) - return 0; /* no refname exists in packed refs */ - - packed = get_packed_refs(refs); - - /* Remove refnames from the cache */ - for_each_string_list_item(refname, refnames) - if (remove_entry_from_dir(packed, refname->string) != -1) - removed = 1; - if (!removed) { - /* - * All packed entries disappeared while we were - * acquiring the lock. - */ - clear_packed_ref_cache(refs); - return 0; - } - - /* Write what remains */ - return commit_packed_refs(&refs->base, err); -} - static int packed_init_db(struct ref_store *ref_store, struct strbuf *err) { /* Nothing to do. */ diff --git a/refs/packed-backend.h b/refs/packed-backend.h index 7af2897..61687e4 100644 --- a/refs/packed-backend.h +++ b/refs/packed-backend.h @@ -23,12 +23,4 @@ int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err) void packed_refs_unlock(struct ref_store *ref_store); int packed_refs_is_locked(struct ref_store *ref_store); -void add_packed_ref(struct ref_store *ref_store, - const char *refname, const struct object_id *oid); - -int commit_packed_refs(struct ref_store *ref_store, struct strbuf *err); - -int repack_without_refs(struct ref_store *ref_store, - struct string_list *refnames, struct strbuf *err); - #endif /* REFS_PACKED_BACKEND_H */ |