diff options
Diffstat (limited to 'builtin/rev-parse.c')
| -rw-r--r-- | builtin/rev-parse.c | 54 |
1 files changed, 41 insertions, 13 deletions
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c index 76cf05e..4da1f1d 100644 --- a/builtin/rev-parse.c +++ b/builtin/rev-parse.c @@ -298,14 +298,30 @@ static int try_parent_shorthands(const char *arg) unsigned char sha1[20]; struct commit *commit; struct commit_list *parents; - int parents_only; - - if ((dotdot = strstr(arg, "^!"))) - parents_only = 0; - else if ((dotdot = strstr(arg, "^@"))) - parents_only = 1; - - if (!dotdot || dotdot[2]) + int parent_number; + int include_rev = 0; + int include_parents = 0; + int exclude_parent = 0; + + if ((dotdot = strstr(arg, "^!"))) { + include_rev = 1; + if (dotdot[2]) + return 0; + } else if ((dotdot = strstr(arg, "^@"))) { + include_parents = 1; + if (dotdot[2]) + return 0; + } else if ((dotdot = strstr(arg, "^-"))) { + include_rev = 1; + exclude_parent = 1; + + if (dotdot[2]) { + char *end; + exclude_parent = strtoul(dotdot + 2, &end, 10); + if (*end != '\0' || !exclude_parent) + return 0; + } + } else return 0; *dotdot = 0; @@ -314,12 +330,24 @@ static int try_parent_shorthands(const char *arg) return 0; } - if (!parents_only) - show_rev(NORMAL, sha1, arg); commit = lookup_commit_reference(sha1); - for (parents = commit->parents; parents; parents = parents->next) - show_rev(parents_only ? NORMAL : REVERSED, - parents->item->object.oid.hash, arg); + if (exclude_parent && + exclude_parent > commit_list_count(commit->parents)) { + *dotdot = '^'; + return 0; + } + + if (include_rev) + show_rev(NORMAL, sha1, arg); + for (parents = commit->parents, parent_number = 1; + parents; + parents = parents->next, parent_number++) { + if (exclude_parent && parent_number != exclude_parent) + continue; + + show_rev(include_parents ? NORMAL : REVERSED, + parents->item->object.oid.hash, arg); + } *dotdot = '^'; return 1; |