X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=revision.c;h=75c648c13c6c50335ffc3e79f5d6303bea20104e;hb=ae448e3854d8b6e7e37aa88fa3917f5dd97f3210;hp=b6ed0149a5c3f34b4747bfcdedf4b2251b0a69ce;hpb=95a31cc5b32c5ab787e419124826ac202a00b7f5;p=git.git

diff --git a/revision.c b/revision.c
index b6ed0149..75c648c1 100644
--- a/revision.c
+++ b/revision.c
@@ -53,8 +53,9 @@ static void mark_blob_uninteresting(struct blob *blob)
 
 void mark_tree_uninteresting(struct tree *tree)
 {
+	struct tree_desc desc;
+	struct name_entry entry;
 	struct object *obj = &tree->object;
-	struct tree_entry_list *entry;
 
 	if (obj->flags & UNINTERESTING)
 		return;
@@ -63,17 +64,22 @@ void mark_tree_uninteresting(struct tree *tree)
 		return;
 	if (parse_tree(tree) < 0)
 		die("bad tree %s", sha1_to_hex(obj->sha1));
-	entry = tree->entries;
-	tree->entries = NULL;
-	while (entry) {
-		struct tree_entry_list *next = entry->next;
-		if (entry->directory)
-			mark_tree_uninteresting(entry->item.tree);
+
+	desc.buf = tree->buffer;
+	desc.size = tree->size;
+	while (tree_entry(&desc, &entry)) {
+		if (S_ISDIR(entry.mode))
+			mark_tree_uninteresting(lookup_tree(entry.sha1));
 		else
-			mark_blob_uninteresting(entry->item.blob);
-		free(entry);
-		entry = next;
+			mark_blob_uninteresting(lookup_blob(entry.sha1));
 	}
+
+	/*
+	 * We don't care about the tree any more
+	 * after it has been marked uninteresting.
+	 */
+	free(tree->buffer);
+	tree->buffer = NULL;
 }
 
 void mark_parents_uninteresting(struct commit *commit)
@@ -297,7 +303,7 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
 		parse_commit(p);
 		switch (rev_compare_tree(revs, p->tree, commit->tree)) {
 		case REV_TREE_SAME:
-			if (p->object.flags & UNINTERESTING) {
+			if (!revs->simplify_history || (p->object.flags & UNINTERESTING)) {
 				/* Even if a merge with an uninteresting
 				 * side branch brought the entire change
 				 * we are interested in, we do not want
@@ -477,12 +483,43 @@ static void handle_all(struct rev_info *revs, unsigned flags)
 	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));
 
 	revs->abbrev = DEFAULT_ABBREV;
 	revs->ignore_merges = 1;
+	revs->simplify_history = 1;
 	revs->pruning.recursive = 1;
 	revs->pruning.add_remove = file_add_remove;
 	revs->pruning.change = file_change;
@@ -544,7 +581,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 				revs->max_count = atoi(arg + 12);
 				continue;
 			}
-			/* accept -<digit>, like traditilnal "head" */
+			/* accept -<digit>, like traditional "head" */
 			if ((*arg == '-') && isdigit(arg[1])) {
 				revs->max_count = atoi(arg + 1);
 				continue;
@@ -664,6 +701,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 			}
 			if (!strcmp(arg, "-c")) {
 				revs->diff = 1;
+				revs->dense_combined_merges = 0;
 				revs->combine_merges = 1;
 				continue;
 			}
@@ -702,6 +740,14 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 				revs->abbrev = DEFAULT_ABBREV;
 				continue;
 			}
+			if (!strncmp(arg, "--abbrev=", 9)) {
+				revs->abbrev = strtoul(arg + 9, NULL, 10);
+				if (revs->abbrev < MINIMUM_ABBREV)
+					revs->abbrev = MINIMUM_ABBREV;
+				else if (revs->abbrev > 40)
+					revs->abbrev = 40;
+				continue;
+			}
 			if (!strcmp(arg, "--abbrev-commit")) {
 				revs->abbrev_commit = 1;
 				continue;
@@ -711,6 +757,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 				revs->full_diff = 1;
 				continue;
 			}
+			if (!strcmp(arg, "--full-history")) {
+				revs->simplify_history = 0;
+				continue;
+			}
 			opts = diff_opt_parse(&revs->diffopt, argv+i, argc-i);
 			if (opts > 0) {
 				revs->diff = 1;
@@ -751,12 +801,19 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 			}
 			*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;
 			arg++;
 		}
-		if (get_sha1(arg, sha1) < 0) {
+		if (get_sha1(arg, sha1)) {
 			int j;
 
 			if (seen_dashdash || local_flags)
@@ -782,7 +839,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 	if (def && !revs->pending_objects) {
 		unsigned char sha1[20];
 		struct object *object;
-		if (get_sha1(def, sha1) < 0)
+		if (get_sha1(def, sha1))
 			die("bad default revision '%s'", def);
 		object = get_reference(revs, def, sha1, 0);
 		add_pending_object(revs, object, def);