diff options
Diffstat (limited to 'commit.c')
| -rw-r--r-- | commit.c | 180 |
1 files changed, 142 insertions, 38 deletions
@@ -39,6 +39,18 @@ struct commit *lookup_commit_reference(const unsigned char *sha1) return lookup_commit_reference_gently(sha1, 0); } +struct commit *lookup_commit_or_die(const unsigned char *sha1, const char *ref_name) +{ + struct commit *c = lookup_commit_reference(sha1); + if (!c) + die(_("could not parse %s"), ref_name); + if (hashcmp(sha1, c->object.sha1)) { + warning(_("%s %s is not a commit!"), + ref_name, sha1_to_hex(sha1)); + } + return c; +} + struct commit *lookup_commit(const unsigned char *sha1) { struct object *obj = lookup_object(sha1); @@ -49,6 +61,19 @@ struct commit *lookup_commit(const unsigned char *sha1) return check_commit(obj, sha1, 0); } +struct commit *lookup_commit_reference_by_name(const char *name) +{ + unsigned char sha1[20]; + struct commit *commit; + + if (get_sha1(name, sha1)) + return NULL; + commit = lookup_commit_reference(sha1); + if (!commit || parse_commit(commit)) + return NULL; + return commit; +} + static unsigned long parse_commit_date(const char *buf, const char *tail) { const char *dateptr; @@ -137,12 +162,8 @@ struct commit_graft *read_graft_line(char *buf, int len) buf[--len] = '\0'; if (buf[0] == '#' || buf[0] == '\0') return NULL; - if ((len + 1) % 41) { - bad_graft_data: - error("bad graft data: %s", buf); - free(graft); - return NULL; - } + if ((len + 1) % 41) + goto bad_graft_data; i = (len + 1) / 41 - 1; graft = xmalloc(sizeof(*graft) + 20 * i); graft->nr_parent = i; @@ -155,6 +176,11 @@ struct commit_graft *read_graft_line(char *buf, int len) goto bad_graft_data; } return graft; + +bad_graft_data: + error("bad graft data: %s", buf); + free(graft); + return NULL; } static int read_graft_file(const char *graft_file) @@ -200,22 +226,12 @@ struct commit_graft *lookup_commit_graft(const unsigned char *sha1) return commit_graft[pos]; } -int write_shallow_commits(struct strbuf *out, int use_pack_protocol) +int for_each_commit_graft(each_commit_graft_fn fn, void *cb_data) { - int i, count = 0; - for (i = 0; i < commit_graft_nr; i++) - if (commit_graft[i]->nr_parent < 0) { - const char *hex = - sha1_to_hex(commit_graft[i]->sha1); - count++; - if (use_pack_protocol) - packet_buf_write(out, "shallow %s", hex); - else { - strbuf_addstr(out, hex); - strbuf_addch(out, '\n'); - } - } - return count; + int i, ret; + for (i = ret = 0; i < commit_graft_nr && !ret; i++) + ret = fn(commit_graft[i], cb_data); + return ret; } int unregister_shallow(const unsigned char *sha1) @@ -224,17 +240,17 @@ int unregister_shallow(const unsigned char *sha1) if (pos < 0) return -1; if (pos + 1 < commit_graft_nr) - memcpy(commit_graft + pos, commit_graft + pos + 1, + memmove(commit_graft + pos, commit_graft + pos + 1, sizeof(struct commit_graft *) * (commit_graft_nr - pos - 1)); commit_graft_nr--; return 0; } -int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size) +int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size) { - char *tail = buffer; - char *bufptr = buffer; + const char *tail = buffer; + const char *bufptr = buffer; unsigned char parent[20]; struct commit_list **pptr; struct commit_graft *graft; @@ -315,6 +331,25 @@ int parse_commit(struct commit *item) return ret; } +int find_commit_subject(const char *commit_buffer, const char **subject) +{ + const char *eol; + const char *p = commit_buffer; + + while (*p && (*p != '\n' || p[1] != '\n')) + p++; + if (*p) { + p += 2; + for (eol = p; *eol && *eol != '\n'; eol++) + ; /* do nothing */ + } else + eol = p; + + *subject = p; + + return eol - p; +} + struct commit_list *commit_list_insert(struct commit *item, struct commit_list **list_p) { struct commit_list *new_list = xmalloc(sizeof(struct commit_list)); @@ -341,7 +376,7 @@ void free_commit_list(struct commit_list *list) } } -struct commit_list * insert_by_date(struct commit *item, struct commit_list **list) +struct commit_list * commit_list_insert_by_date(struct commit *item, struct commit_list **list) { struct commit_list **pp = list; struct commit_list *p; @@ -355,11 +390,11 @@ struct commit_list * insert_by_date(struct commit *item, struct commit_list **li } -void sort_by_date(struct commit_list **list) +void commit_list_sort_by_date(struct commit_list **list) { struct commit_list *ret = NULL; while (*list) { - insert_by_date((*list)->item, &ret); + commit_list_insert_by_date((*list)->item, &ret); *list = (*list)->next; } *list = ret; @@ -379,7 +414,7 @@ struct commit *pop_most_recent_commit(struct commit_list **list, struct commit *commit = parents->item; if (!parse_commit(commit) && !(commit->object.flags & mark)) { commit->object.flags |= mark; - insert_by_date(commit, list); + commit_list_insert_by_date(commit, list); } parents = parents->next; } @@ -407,6 +442,20 @@ void clear_commit_marks(struct commit *commit, unsigned int mark) } } +void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark) +{ + struct object *object; + struct commit *commit; + unsigned int i; + + for (i = 0; i < a->nr; i++) { + object = a->objects[i].item; + commit = lookup_commit_reference_gently(object->sha1, 1); + if (commit) + clear_commit_marks(commit, mark); + } +} + struct commit *pop_commit(struct commit_list **stack) { struct commit_list *top = *stack; @@ -468,7 +517,7 @@ void sort_in_topological_order(struct commit_list ** list, int lifo) /* process the list in topological order */ if (!lifo) - sort_by_date(&work); + commit_list_sort_by_date(&work); pptr = list; *list = NULL; @@ -482,7 +531,7 @@ void sort_in_topological_order(struct commit_list ** list, int lifo) commit = work_item->item; for (parents = commit->parents; parents ; parents = parents->next) { - struct commit *parent=parents->item; + struct commit *parent = parents->item; if (!parent->indegree) continue; @@ -494,7 +543,7 @@ void sort_in_topological_order(struct commit_list ** list, int lifo) */ if (--parent->indegree == 1) { if (!lifo) - insert_by_date(parent, &work); + commit_list_insert_by_date(parent, &work); else commit_list_insert(parent, &work); } @@ -554,10 +603,10 @@ static struct commit_list *merge_bases_many(struct commit *one, int n, struct co } one->object.flags |= PARENT1; - insert_by_date(one, &list); + commit_list_insert_by_date(one, &list); for (i = 0; i < n; i++) { twos[i]->object.flags |= PARENT2; - insert_by_date(twos[i], &list); + commit_list_insert_by_date(twos[i], &list); } while (interesting(list)) { @@ -575,7 +624,7 @@ static struct commit_list *merge_bases_many(struct commit *one, int n, struct co if (flags == (PARENT1 | PARENT2)) { if (!(commit->object.flags & RESULT)) { commit->object.flags |= RESULT; - insert_by_date(commit, &result); + commit_list_insert_by_date(commit, &result); } /* Mark parents of a found merge stale */ flags |= STALE; @@ -589,7 +638,7 @@ static struct commit_list *merge_bases_many(struct commit *one, int n, struct co if (parse_commit(p)) return NULL; p->object.flags |= flags; - insert_by_date(p, &list); + commit_list_insert_by_date(p, &list); } } @@ -599,7 +648,7 @@ static struct commit_list *merge_bases_many(struct commit *one, int n, struct co while (list) { struct commit_list *next = list->next; if (!(list->item->object.flags & STALE)) - insert_by_date(list->item, &result); + commit_list_insert_by_date(list->item, &result); free(list); list = next; } @@ -692,7 +741,7 @@ struct commit_list *get_merge_bases_many(struct commit *one, result = NULL; for (i = 0; i < cnt; i++) { if (rslt[i]) - insert_by_date(rslt[i], &result); + commit_list_insert_by_date(rslt[i], &result); } free(rslt); return result; @@ -790,3 +839,58 @@ struct commit_list *reduce_heads(struct commit_list *heads) free(other); return result; } + +static const char commit_utf8_warn[] = +"Warning: commit message does not conform to UTF-8.\n" +"You may want to amend it after fixing the message, or set the config\n" +"variable i18n.commitencoding to the encoding your project uses.\n"; + +int commit_tree(const char *msg, unsigned char *tree, + struct commit_list *parents, unsigned char *ret, + const char *author) +{ + int result; + int encoding_is_utf8; + struct strbuf buffer; + + assert_sha1_type(tree, OBJ_TREE); + + /* Not having i18n.commitencoding is the same as having utf-8 */ + encoding_is_utf8 = is_encoding_utf8(git_commit_encoding); + + strbuf_init(&buffer, 8192); /* should avoid reallocs for the headers */ + strbuf_addf(&buffer, "tree %s\n", sha1_to_hex(tree)); + + /* + * NOTE! This ordering means that the same exact tree merged with a + * different order of parents will be a _different_ changeset even + * if everything else stays the same. + */ + while (parents) { + struct commit_list *next = parents->next; + strbuf_addf(&buffer, "parent %s\n", + sha1_to_hex(parents->item->object.sha1)); + free(parents); + parents = next; + } + + /* Person/date information */ + if (!author) + author = git_author_info(IDENT_ERROR_ON_NO_NAME); + strbuf_addf(&buffer, "author %s\n", author); + strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME)); + if (!encoding_is_utf8) + strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding); + strbuf_addch(&buffer, '\n'); + + /* And add the comment */ + strbuf_addstr(&buffer, msg); + + /* And check the encoding */ + if (encoding_is_utf8 && !is_utf8(buffer.buf)) + fprintf(stderr, commit_utf8_warn); + + result = write_sha1_file(buffer.buf, buffer.len, commit_type, ret); + strbuf_release(&buffer); + return result; +} |