From: Junio C Hamano <junkio@cox.net>
Date: Tue, 2 May 2006 05:55:40 +0000 (-0700)
Subject: Merge branch 'jc/xsha1-2'
X-Git-Tag: v1.4.0-rc1~199
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/746437d534a1fa84e210427a94972ed0c7f34ee5?ds=inline;hp=-c

Merge branch 'jc/xsha1-2'

* jc/xsha1-2:
Extended SHA1 -- "rev^@" syntax to mean "all parents"
---

746437d534a1fa84e210427a94972ed0c7f34ee5
diff --combined revision.c
index b6ed0149a5,d1f85a8f8a..ad78efda51
--- a/revision.c
+++ b/revision.c
@@@ -477,6 -477,36 +477,36 @@@ static void handle_all(struct rev_info 
  	for_each_ref(handle_one_ref);
  }
  
+ static int add_parents_only(struct rev_info *revs, const char *arg, int flags)
+ {
+ 	unsigned char sha1[20];
+ 	struct object *it;
+ 	struct commit *commit;
+ 	struct commit_list *parents;
+ 
+ 	if (*arg == '^') {
+ 		flags ^= UNINTERESTING;
+ 		arg++;
+ 	}
+ 	if (get_sha1(arg, sha1))
+ 		return 0;
+ 	while (1) {
+ 		it = get_reference(revs, arg, sha1, 0);
+ 		if (strcmp(it->type, tag_type))
+ 			break;
+ 		memcpy(sha1, ((struct tag*)it)->tagged->sha1, 20);
+ 	}
+ 	if (strcmp(it->type, commit_type))
+ 		return 0;
+ 	commit = (struct commit *)it;
+ 	for (parents = commit->parents; parents; parents = parents->next) {
+ 		it = &parents->item->object;
+ 		it->flags |= flags;
+ 		add_pending_object(revs, it, arg);
+ 	}
+ 	return 1;
+ }
+ 
  void init_revisions(struct rev_info *revs)
  {
  	memset(revs, 0, sizeof(*revs));
@@@ -740,17 -770,19 +770,24 @@@ int setup_revisions(int argc, const cha
  				include = get_reference(revs, next, sha1, flags);
  				if (!exclude || !include)
  					die("Invalid revision range %s..%s", arg, next);
 +
 +				if (!seen_dashdash) {
 +					*dotdot = '.';
 +					verify_non_filename(revs->prefix, arg);
 +				}
  				add_pending_object(revs, exclude, this);
  				add_pending_object(revs, include, next);
  				continue;
  			}
  			*dotdot = '.';
  		}
+ 		dotdot = strstr(arg, "^@");
+ 		if (dotdot && !dotdot[2]) {
+ 			*dotdot = 0;
+ 			if (add_parents_only(revs, arg, flags))
+ 				continue;
+ 			*dotdot = '^';
+ 		}
  		local_flags = 0;
  		if (*arg == '^') {
  			local_flags = UNINTERESTING;
@@@ -762,20 -794,13 +799,20 @@@
  			if (seen_dashdash || local_flags)
  				die("bad revision '%s'", arg);
  
 -			/* If we didn't have a "--", all filenames must exist */
 +			/* If we didn't have a "--":
 +			 * (1) all filenames must exist;
 +			 * (2) all rev-args must not be interpretable
 +			 *     as a valid filename.
 +			 * but the latter we have checked in the main loop.
 +			 */
  			for (j = i; j < argc; j++)
  				verify_filename(revs->prefix, argv[j]);
  
  			revs->prune_data = get_pathspec(revs->prefix, argv + i);
  			break;
  		}
 +		if (!seen_dashdash)
 +			verify_non_filename(revs->prefix, arg);
  		object = get_reference(revs, arg, sha1, flags ^ local_flags);
  		add_pending_object(revs, object, arg);
  	}