| 64 | } |
| 65 | |
| 66 | static int reftable_backend_read_ref(struct reftable_backend *be, |
| 67 | const char *refname, |
| 68 | struct object_id *oid, |
| 69 | struct strbuf *referent, |
| 70 | unsigned int *type) |
| 71 | { |
| 72 | struct reftable_ref_record ref = {0}; |
| 73 | int ret; |
| 74 | |
| 75 | if (!be->it.ops) { |
| 76 | ret = reftable_stack_init_ref_iterator(be->stack, &be->it); |
| 77 | if (ret) |
| 78 | goto done; |
| 79 | } |
| 80 | |
| 81 | ret = reftable_iterator_seek_ref(&be->it, refname); |
| 82 | if (ret) |
| 83 | goto done; |
| 84 | |
| 85 | ret = reftable_iterator_next_ref(&be->it, &ref); |
| 86 | if (ret) |
| 87 | goto done; |
| 88 | |
| 89 | if (strcmp(ref.refname, refname)) { |
| 90 | ret = 1; |
| 91 | goto done; |
| 92 | } |
| 93 | |
| 94 | if (ref.value_type == REFTABLE_REF_SYMREF) { |
| 95 | strbuf_reset(referent); |
| 96 | strbuf_addstr(referent, ref.value.symref); |
| 97 | *type |= REF_ISSYMREF; |
| 98 | } else if (reftable_ref_record_val1(&ref)) { |
| 99 | unsigned int hash_id; |
| 100 | |
| 101 | switch (reftable_stack_hash_id(be->stack)) { |
| 102 | case REFTABLE_HASH_SHA1: |
| 103 | hash_id = GIT_HASH_SHA1; |
| 104 | break; |
| 105 | case REFTABLE_HASH_SHA256: |
| 106 | hash_id = GIT_HASH_SHA256; |
| 107 | break; |
| 108 | default: |
| 109 | BUG("unhandled hash ID %d", reftable_stack_hash_id(be->stack)); |
| 110 | } |
| 111 | |
| 112 | oidread(oid, reftable_ref_record_val1(&ref), |
| 113 | &hash_algos[hash_id]); |
| 114 | } else { |
| 115 | /* We got a tombstone, which should not happen. */ |
| 116 | BUG("unhandled reference value type %d", ref.value_type); |
| 117 | } |
| 118 | |
| 119 | done: |
| 120 | assert(ret != REFTABLE_API_ERROR); |
| 121 | reftable_ref_record_release(&ref); |
| 122 | return ret; |
| 123 | } |
no test coverage detected