X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-log.c;h=fedb0137bc5e3ba50ecb90ce560ce9ce9290d8df;hb=6534141151f7fd4334f62827d9234acf3974ca4d;hp=9d1ceae44c6a449d2329e897b9705a5b457187f0;hpb=284fe4beb6b4835ef6857cd56b34c70c1d12b14d;p=git.git diff --git a/builtin-log.c b/builtin-log.c index 9d1ceae44..fedb0137b 100644 --- a/builtin-log.c +++ b/builtin-log.c @@ -171,8 +171,11 @@ static void reopen_stdout(struct commit *commit, int nr, int keep_subject) static int get_patch_id(struct commit *commit, struct diff_options *options, unsigned char *sha1) { - diff_tree_sha1(commit->parents->item->object.sha1, commit->object.sha1, - "", options); + if (commit->parents) + diff_tree_sha1(commit->parents->item->object.sha1, + commit->object.sha1, "", options); + else + diff_root_tree_sha1(commit->object.sha1, "", options); diffcore_std(options); return diff_flush_patch_id(options, sha1); } @@ -437,3 +440,109 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) return 0; } +static int add_pending_commit(const char *arg, struct rev_info *revs, int flags) +{ + unsigned char sha1[20]; + if (get_sha1(arg, sha1) == 0) { + struct commit *commit = lookup_commit_reference(sha1); + if (commit) { + commit->object.flags |= flags; + add_pending_object(revs, &commit->object, arg); + return 0; + } + } + return -1; +} + +static const char cherry_usage[] = +"git-cherry [-v] [] []"; +int cmd_cherry(int argc, const char **argv, const char *prefix) +{ + struct rev_info revs; + struct diff_options patch_id_opts; + struct commit *commit; + struct commit_list *list = NULL; + const char *upstream; + const char *head = "HEAD"; + const char *limit = NULL; + int verbose = 0; + + if (argc > 1 && !strcmp(argv[1], "-v")) { + verbose = 1; + argc--; + argv++; + } + + switch (argc) { + case 4: + limit = argv[3]; + /* FALLTHROUGH */ + case 3: + head = argv[2]; + /* FALLTHROUGH */ + case 2: + upstream = argv[1]; + break; + default: + usage(cherry_usage); + } + + init_revisions(&revs, prefix); + revs.diff = 1; + revs.combine_merges = 0; + revs.ignore_merges = 1; + revs.diffopt.recursive = 1; + + if (add_pending_commit(head, &revs, 0)) + die("Unknown commit %s", head); + if (add_pending_commit(upstream, &revs, UNINTERESTING)) + die("Unknown commit %s", upstream); + + /* Don't say anything if head and upstream are the same. */ + if (revs.pending.nr == 2) { + struct object_array_entry *o = revs.pending.objects; + if (hashcmp(o[0].item->sha1, o[1].item->sha1) == 0) + return 0; + } + + get_patch_ids(&revs, &patch_id_opts, prefix); + + if (limit && add_pending_commit(limit, &revs, UNINTERESTING)) + die("Unknown commit %s", limit); + + /* reverse the list of commits */ + prepare_revision_walk(&revs); + while ((commit = get_revision(&revs)) != NULL) { + /* ignore merges */ + if (commit->parents && commit->parents->next) + continue; + + commit_list_insert(commit, &list); + } + + while (list) { + unsigned char sha1[20]; + char sign = '+'; + + commit = list->item; + if (!get_patch_id(commit, &patch_id_opts, sha1) && + lookup_object(sha1)) + sign = '-'; + + if (verbose) { + static char buf[16384]; + pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0, + buf, sizeof(buf), 0, NULL, NULL, 0); + printf("%c %s %s\n", sign, + sha1_to_hex(commit->object.sha1), buf); + } + else { + printf("%c %s\n", sign, + sha1_to_hex(commit->object.sha1)); + } + + list = list->next; + } + + return 0; +}