diff options
Diffstat (limited to 'refs/packed-backend.c')
| -rw-r--r-- | refs/packed-backend.c | 143 |
1 files changed, 63 insertions, 80 deletions
diff --git a/refs/packed-backend.c b/refs/packed-backend.c index 5963e67c14..a0666407cd 100644 --- a/refs/packed-backend.c +++ b/refs/packed-backend.c @@ -1,5 +1,8 @@ +#define USE_THE_REPOSITORY_VARIABLE + #include "../git-compat-util.h" #include "../config.h" +#include "../dir.h" #include "../gettext.h" #include "../hash.h" #include "../hex.h" @@ -200,9 +203,14 @@ static int release_snapshot(struct snapshot *snapshot) } } -struct ref_store *packed_ref_store_create(struct repository *repo, - const char *gitdir, - unsigned int store_flags) +static size_t snapshot_hexsz(const struct snapshot *snapshot) +{ + return snapshot->refs->base.repo->hash_algo->hexsz; +} + +struct ref_store *packed_ref_store_init(struct repository *repo, + const char *gitdir, + unsigned int store_flags) { struct packed_ref_store *refs = xcalloc(1, sizeof(*refs)); struct ref_store *ref_store = (struct ref_store *)refs; @@ -252,6 +260,15 @@ static void clear_snapshot(struct packed_ref_store *refs) } } +static void packed_ref_store_release(struct ref_store *ref_store) +{ + struct packed_ref_store *refs = packed_downcast(ref_store, 0, "release"); + clear_snapshot(refs); + rollback_lock_file(&refs->lock); + delete_tempfile(&refs->tempfile); + free(refs->path); +} + static NORETURN void die_unterminated_line(const char *path, const char *p, size_t len) { @@ -280,11 +297,13 @@ struct snapshot_record { size_t len; }; -static int cmp_packed_ref_records(const void *v1, const void *v2) +static int cmp_packed_ref_records(const void *v1, const void *v2, + void *cb_data) { + const struct snapshot *snapshot = cb_data; const struct snapshot_record *e1 = v1, *e2 = v2; - const char *r1 = e1->start + the_hash_algo->hexsz + 1; - const char *r2 = e2->start + the_hash_algo->hexsz + 1; + const char *r1 = e1->start + snapshot_hexsz(snapshot) + 1; + const char *r2 = e2->start + snapshot_hexsz(snapshot) + 1; while (1) { if (*r1 == '\n') @@ -305,9 +324,9 @@ static int cmp_packed_ref_records(const void *v1, const void *v2) * refname. */ static int cmp_record_to_refname(const char *rec, const char *refname, - int start) + int start, const struct snapshot *snapshot) { - const char *r1 = rec + the_hash_algo->hexsz + 1; + const char *r1 = rec + snapshot_hexsz(snapshot) + 1; const char *r2 = refname; while (1) { @@ -354,7 +373,7 @@ static void sort_snapshot(struct snapshot *snapshot) if (!eol) /* The safety check should prevent this. */ BUG("unterminated line found in packed-refs"); - if (eol - pos < the_hash_algo->hexsz + 2) + if (eol - pos < snapshot_hexsz(snapshot) + 2) die_invalid_line(snapshot->refs->path, pos, eof - pos); eol++; @@ -380,7 +399,7 @@ static void sort_snapshot(struct snapshot *snapshot) if (sorted && nr > 1 && cmp_packed_ref_records(&records[nr - 2], - &records[nr - 1]) >= 0) + &records[nr - 1], snapshot) >= 0) sorted = 0; pos = eol; @@ -390,7 +409,7 @@ static void sort_snapshot(struct snapshot *snapshot) goto cleanup; /* We need to sort the memory. First we sort the records array: */ - QSORT(records, nr, cmp_packed_ref_records); + QSORT_S(records, nr, cmp_packed_ref_records, snapshot); /* * Allocate a new chunk of memory, and copy the old memory to @@ -466,7 +485,8 @@ static void verify_buffer_safe(struct snapshot *snapshot) return; last_line = find_start_of_record(start, eof - 1); - if (*(eof - 1) != '\n' || eof - last_line < the_hash_algo->hexsz + 2) + if (*(eof - 1) != '\n' || + eof - last_line < snapshot_hexsz(snapshot) + 2) die_invalid_line(snapshot->refs->path, last_line, eof - last_line); } @@ -561,7 +581,7 @@ static const char *find_reference_location_1(struct snapshot *snapshot, mid = lo + (hi - lo) / 2; rec = find_start_of_record(lo, mid); - cmp = cmp_record_to_refname(rec, refname, start); + cmp = cmp_record_to_refname(rec, refname, start, snapshot); if (cmp < 0) { lo = find_end_of_record(mid, hi); } else if (cmp > 0) { @@ -858,7 +878,7 @@ static int next_record(struct packed_ref_iterator *iter) iter->base.flags = REF_ISPACKED; p = iter->pos; - if (iter->eof - p < the_hash_algo->hexsz + 2 || + if (iter->eof - p < snapshot_hexsz(iter->snapshot) + 2 || parse_oid_hex(p, &iter->oid, &p) || !isspace(*p++)) die_invalid_line(iter->snapshot->refs->path, @@ -876,7 +896,7 @@ static int next_record(struct packed_ref_iterator *iter) if (!refname_is_safe(iter->base.refname)) die("packed refname is dangerous: %s", iter->base.refname); - oidclr(&iter->oid); + oidclr(&iter->oid, the_repository->hash_algo); iter->base.flags |= REF_BAD_NAME | REF_ISBROKEN; } if (iter->snapshot->peeled == PEELED_FULLY || @@ -888,7 +908,7 @@ static int next_record(struct packed_ref_iterator *iter) if (iter->pos < iter->eof && *iter->pos == '^') { p = iter->pos + 1; - if (iter->eof - p < the_hash_algo->hexsz + 1 || + if (iter->eof - p < snapshot_hexsz(iter->snapshot) + 1 || parse_oid_hex(p, &iter->peeled, &p) || *p++ != '\n') die_invalid_line(iter->snapshot->refs->path, @@ -901,13 +921,13 @@ static int next_record(struct packed_ref_iterator *iter) * we suppress it if the reference is broken: */ if ((iter->base.flags & REF_ISBROKEN)) { - oidclr(&iter->peeled); + oidclr(&iter->peeled, the_repository->hash_algo); iter->base.flags &= ~REF_KNOWS_PEELED; } else { iter->base.flags |= REF_KNOWS_PEELED; } } else { - oidclr(&iter->peeled); + oidclr(&iter->peeled, the_repository->hash_algo); } return ITER_OK; @@ -944,16 +964,13 @@ static int packed_ref_iterator_peel(struct ref_iterator *ref_iterator, struct packed_ref_iterator *iter = (struct packed_ref_iterator *)ref_iterator; - if (iter->repo != the_repository) - BUG("peeling for non-the_repository is not supported"); - if ((iter->base.flags & REF_KNOWS_PEELED)) { oidcpy(peeled, &iter->peeled); return is_null_oid(&iter->peeled) ? -1 : 0; } else if ((iter->base.flags & (REF_ISBROKEN | REF_ISSYMREF))) { return -1; } else { - return peel_object(&iter->oid, peeled) ? -1 : 0; + return peel_object(iter->repo, &iter->oid, peeled) ? -1 : 0; } } @@ -1111,7 +1128,7 @@ static struct ref_iterator *packed_ref_iterator_begin( CALLOC_ARRAY(iter, 1); ref_iterator = &iter->base; - base_ref_iterator_init(ref_iterator, &packed_ref_iterator_vtable, 1); + base_ref_iterator_init(ref_iterator, &packed_ref_iterator_vtable); if (exclude_patterns) populate_excluded_jump_list(iter, snapshot, exclude_patterns); @@ -1244,13 +1261,27 @@ int packed_refs_is_locked(struct ref_store *ref_store) static const char PACKED_REFS_HEADER[] = "# pack-refs with: peeled fully-peeled sorted \n"; -static int packed_init_db(struct ref_store *ref_store UNUSED, - struct strbuf *err UNUSED) +static int packed_ref_store_create_on_disk(struct ref_store *ref_store UNUSED, + int flags UNUSED, + struct strbuf *err UNUSED) { /* Nothing to do. */ return 0; } +static int packed_ref_store_remove_on_disk(struct ref_store *ref_store, + struct strbuf *err) +{ + struct packed_ref_store *refs = packed_downcast(ref_store, 0, "remove"); + + if (remove_path(refs->path) < 0) { + strbuf_addstr(err, "could not delete packed-refs"); + return -1; + } + + return 0; +} + /* * Write the packed refs from the current snapshot to the packed-refs * tempfile, incorporating any changes from `updates`. `updates` must @@ -1411,7 +1442,8 @@ static int write_with_updates(struct packed_ref_store *refs, i++; } else { struct object_id peeled; - int peel_error = peel_object(&update->new_oid, + int peel_error = peel_object(refs->base.repo, + &update->new_oid, &peeled); if (write_packed_entry(out, update->refname, @@ -1687,55 +1719,6 @@ static int packed_initial_transaction_commit(struct ref_store *ref_store UNUSED, return ref_transaction_commit(transaction, err); } -static int packed_delete_refs(struct ref_store *ref_store, const char *msg, - struct string_list *refnames, unsigned int flags) -{ - struct packed_ref_store *refs = - packed_downcast(ref_store, REF_STORE_WRITE, "delete_refs"); - struct strbuf err = STRBUF_INIT; - struct ref_transaction *transaction; - struct string_list_item *item; - int ret; - - (void)refs; /* We need the check above, but don't use the variable */ - - if (!refnames->nr) - return 0; - - /* - * Since we don't check the references' old_oids, the - * individual updates can't fail, so we can pack all of the - * updates into a single transaction. - */ - - transaction = ref_store_transaction_begin(ref_store, &err); - if (!transaction) - return -1; - - for_each_string_list_item(item, refnames) { - if (ref_transaction_delete(transaction, item->string, NULL, - flags, msg, &err)) { - warning(_("could not delete reference %s: %s"), - item->string, err.buf); - strbuf_reset(&err); - } - } - - ret = ref_transaction_commit(transaction, &err); - - if (ret) { - if (refnames->nr == 1) - error(_("could not delete reference %s: %s"), - refnames->items[0].string, err.buf); - else - error(_("could not delete references: %s"), err.buf); - } - - ref_transaction_free(transaction); - strbuf_release(&err); - return ret; -} - static int packed_pack_refs(struct ref_store *ref_store UNUSED, struct pack_refs_opts *pack_opts UNUSED) { @@ -1753,18 +1736,18 @@ static struct ref_iterator *packed_reflog_iterator_begin(struct ref_store *ref_s } struct ref_storage_be refs_be_packed = { - .next = NULL, .name = "packed", - .init = packed_ref_store_create, - .init_db = packed_init_db, + .init = packed_ref_store_init, + .release = packed_ref_store_release, + .create_on_disk = packed_ref_store_create_on_disk, + .remove_on_disk = packed_ref_store_remove_on_disk, + .transaction_prepare = packed_transaction_prepare, .transaction_finish = packed_transaction_finish, .transaction_abort = packed_transaction_abort, .initial_transaction_commit = packed_initial_transaction_commit, .pack_refs = packed_pack_refs, - .create_symref = NULL, - .delete_refs = packed_delete_refs, .rename_ref = NULL, .copy_ref = NULL, |