diff options
| -rw-r--r-- | builtin/merge.c | 63 | ||||
| -rw-r--r-- | commit.c | 19 | ||||
| -rw-r--r-- | commit.h | 13 | ||||
| -rw-r--r-- | merge-recursive.c | 13 |
4 files changed, 61 insertions, 47 deletions
diff --git a/builtin/merge.c b/builtin/merge.c index 48e7f003d3..8d4eb4e423 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -406,20 +406,10 @@ static void finish(struct commit *head_commit, strbuf_release(&reflog_message); } -static struct object *want_commit(const char *name) -{ - struct object *obj; - unsigned char sha1[20]; - if (get_sha1(name, sha1)) - return NULL; - obj = parse_object(sha1); - return peel_to_type(name, 0, obj, OBJ_COMMIT); -} - /* Get the name for the merge commit's message. */ static void merge_name(const char *remote, struct strbuf *msg) { - struct object *remote_head; + struct commit *remote_head; unsigned char branch_head[20], buf_sha[20]; struct strbuf buf = STRBUF_INIT; struct strbuf bname = STRBUF_INIT; @@ -431,7 +421,7 @@ static void merge_name(const char *remote, struct strbuf *msg) remote = bname.buf; memset(branch_head, 0, sizeof(branch_head)); - remote_head = want_commit(remote); + remote_head = get_merge_parent(remote); if (!remote_head) die(_("'%s' does not point to a commit"), remote); @@ -487,7 +477,7 @@ static void merge_name(const char *remote, struct strbuf *msg) if (resolve_ref(truname.buf, buf_sha, 1, NULL)) { strbuf_addf(msg, "%s\t\tbranch '%s'%s of .\n", - sha1_to_hex(remote_head->sha1), + sha1_to_hex(remote_head->object.sha1), truname.buf + 11, (early ? " (early part)" : "")); strbuf_release(&truname); @@ -515,7 +505,7 @@ static void merge_name(const char *remote, struct strbuf *msg) goto cleanup; } strbuf_addf(msg, "%s\t\tcommit '%s'\n", - sha1_to_hex(remote_head->sha1), remote); + sha1_to_hex(remote_head->object.sha1), remote); cleanup: strbuf_release(&buf); strbuf_release(&bname); @@ -719,7 +709,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common, die(_("Unknown option for merge-recursive: -X%s"), xopts[x]); o.branch1 = head_arg; - o.branch2 = remoteheads->item->util; + o.branch2 = merge_remote_util(remoteheads->item)->name; for (j = common; j; j = j->next) commit_list_insert(j->item, &reversed); @@ -1190,7 +1180,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) argv += 2; argc -= 2; } else if (!head_commit) { - struct object *remote_head; + struct commit *remote_head; /* * If the merged head is a valid one there is no reason * to forbid "git merge" into a branch yet to be born. @@ -1204,12 +1194,12 @@ int cmd_merge(int argc, const char **argv, const char *prefix) if (!allow_fast_forward) die(_("Non-fast-forward commit does not make sense into " "an empty head")); - remote_head = want_commit(argv[0]); + remote_head = get_merge_parent(argv[0]); if (!remote_head) die(_("%s - not something we can merge"), argv[0]); - read_empty(remote_head->sha1, 0); - update_ref("initial pull", "HEAD", remote_head->sha1, NULL, 0, - DIE_ON_ERR); + read_empty(remote_head->object.sha1, 0); + update_ref("initial pull", "HEAD", remote_head->object.sha1, + NULL, 0, DIE_ON_ERR); return 0; } else { struct strbuf merge_names = STRBUF_INIT; @@ -1218,12 +1208,9 @@ int cmd_merge(int argc, const char **argv, const char *prefix) head_arg = "HEAD"; /* - * All the rest are the commits being merged; - * prepare the standard merge summary message to - * be appended to the given message. If remote - * is invalid we will die later in the common - * codepath so we discard the error in this - * loop. + * All the rest are the commits being merged; prepare + * the standard merge summary message to be appended + * to the given message. */ for (i = 0; i < argc; i++) merge_name(argv[i], &merge_names); @@ -1251,17 +1238,12 @@ int cmd_merge(int argc, const char **argv, const char *prefix) strbuf_reset(&buf); for (i = 0; i < argc; i++) { - struct object *o; - struct commit *commit; - - o = want_commit(argv[i]); - if (!o) + struct commit *commit = get_merge_parent(argv[i]); + if (!commit) die(_("%s - not something we can merge"), argv[i]); - commit = lookup_commit(o->sha1); - commit->util = (void *)argv[i]; remotes = &commit_list_insert(commit, remotes)->next; - - strbuf_addf(&buf, "GITHEAD_%s", sha1_to_hex(o->sha1)); + strbuf_addf(&buf, "GITHEAD_%s", + sha1_to_hex(commit->object.sha1)); setenv(buf.buf, argv[i], 1); strbuf_reset(&buf); } @@ -1307,7 +1289,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) !hashcmp(common->item->object.sha1, head_commit->object.sha1)) { /* Again the most common case of merging one remote. */ struct strbuf msg = STRBUF_INIT; - struct object *o; + struct commit *commit; char hex[41]; strcpy(hex, find_unique_abbrev(head_commit->object.sha1, DEFAULT_ABBREV)); @@ -1321,14 +1303,15 @@ int cmd_merge(int argc, const char **argv, const char *prefix) if (have_message) strbuf_addstr(&msg, " (no commit created; -m option ignored)"); - o = want_commit(sha1_to_hex(remoteheads->item->object.sha1)); - if (!o) + commit = remoteheads->item; + if (!commit) return 1; - if (checkout_fast_forward(head_commit->object.sha1, remoteheads->item->object.sha1)) + if (checkout_fast_forward(head_commit->object.sha1, + commit->object.sha1)) return 1; - finish(head_commit, o->sha1, msg.buf); + finish(head_commit, commit->object.sha1, msg.buf); drop_save(); return 0; } else if (!remoteheads->next && common->next) @@ -894,3 +894,22 @@ int commit_tree(const char *msg, unsigned char *tree, strbuf_release(&buffer); return result; } + +struct commit *get_merge_parent(const char *name) +{ + struct object *obj; + struct commit *commit; + unsigned char sha1[20]; + if (get_sha1(name, sha1)) + return NULL; + obj = parse_object(sha1); + commit = (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT); + if (commit && !commit->util) { + struct merge_remote_desc *desc; + desc = xmalloc(sizeof(*desc)); + desc->obj = obj; + desc->name = strdup(name); + commit->util = desc; + } + return commit; +} @@ -185,4 +185,17 @@ extern int commit_tree(const char *msg, unsigned char *tree, struct commit_list *parents, unsigned char *ret, const char *author); +struct merge_remote_desc { + struct object *obj; /* the named object, could be a tag */ + const char *name; +}; +#define merge_remote_util(commit) ((struct merge_remote_desc *)((commit)->util)) + +/* + * Given "name" from the command line to merge, find the commit object + * and return it, while storing merge_remote_desc in its ->util field, + * to allow callers to tell if we are told to merge a tag. + */ +struct commit *get_merge_parent(const char *name); + #endif /* COMMIT_H */ diff --git a/merge-recursive.c b/merge-recursive.c index cc664c39b6..5a2db296b8 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -38,16 +38,15 @@ static struct tree *shift_tree_object(struct tree *one, struct tree *two, return lookup_tree(shifted); } -/* - * A virtual commit has (const char *)commit->util set to the name. - */ - static struct commit *make_virtual_commit(struct tree *tree, const char *comment) { struct commit *commit = xcalloc(1, sizeof(struct commit)); + struct merge_remote_desc *desc = xmalloc(sizeof(*desc)); + + desc->name = comment; + desc->obj = (struct object *)commit; commit->tree = tree; - commit->util = (void*)comment; - /* avoid warnings */ + commit->util = desc; commit->object.parsed = 1; return commit; } @@ -184,7 +183,7 @@ static void output_commit_title(struct merge_options *o, struct commit *commit) for (i = o->call_depth; i--;) fputs(" ", stdout); if (commit->util) - printf("virtual %s\n", (char *)commit->util); + printf("virtual %s\n", merge_remote_util(commit)->name); else { printf("%s ", find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV)); if (parse_commit(commit) != 0) |