diff options
Diffstat (limited to 'commit.c')
| -rw-r--r-- | commit.c | 36 |
1 files changed, 21 insertions, 15 deletions
@@ -137,32 +137,38 @@ int register_commit_graft(struct commit_graft *graft, int ignore_dups) struct commit_graft *read_graft_line(struct strbuf *line) { /* The format is just "Commit Parent1 Parent2 ...\n" */ - int i; + int i, phase; + const char *tail = NULL; struct commit_graft *graft = NULL; - const int entry_size = GIT_SHA1_HEXSZ + 1; + struct object_id dummy_oid, *oid; strbuf_rtrim(line); if (!line->len || line->buf[0] == '#') return NULL; - if ((line->len + 1) % entry_size) - goto bad_graft_data; - i = (line->len + 1) / entry_size - 1; - graft = xmalloc(st_add(sizeof(*graft), - st_mult(sizeof(struct object_id), i))); - graft->nr_parent = i; - if (get_oid_hex(line->buf, &graft->oid)) - goto bad_graft_data; - for (i = GIT_SHA1_HEXSZ; i < line->len; i += entry_size) { - if (line->buf[i] != ' ') - goto bad_graft_data; - if (get_sha1_hex(line->buf + i + 1, graft->parent[i/entry_size].hash)) + /* + * phase 0 verifies line, counts hashes in line and allocates graft + * phase 1 fills graft + */ + for (phase = 0; phase < 2; phase++) { + oid = graft ? &graft->oid : &dummy_oid; + if (parse_oid_hex(line->buf, oid, &tail)) goto bad_graft_data; + for (i = 0; *tail != '\0'; i++) { + oid = graft ? &graft->parent[i] : &dummy_oid; + if (!isspace(*tail++) || parse_oid_hex(tail, oid, &tail)) + goto bad_graft_data; + } + if (!graft) { + graft = xmalloc(st_add(sizeof(*graft), + st_mult(sizeof(struct object_id), i))); + graft->nr_parent = i; + } } return graft; bad_graft_data: error("bad graft data: %s", line->buf); - free(graft); + assert(!graft); return NULL; } |