read-tree: --trivial
This adds an option --trivial to restrict 3-way 'read-tree -m -u'
to happen only if there is no file-level merging required.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff --git a/read-tree.c b/read-tree.c
index 390fe2f..5fdf58d 100644
--- a/read-tree.c
+++ b/read-tree.c
@@ -13,6 +13,8 @@
static int merge = 0;
static int update = 0;
static int index_only = 0;
+static int nontrivial_merge = 0;
+static int trivial_merges_only = 0;
static int head_idx = -1;
static int merge_size = 0;
@@ -275,6 +277,9 @@
if (unpack_trees_rec(posns, len, "", fn, &indpos))
return -1;
+ if (trivial_merges_only && nontrivial_merge)
+ die("Merge requires file-level merging");
+
check_updates(active_cache, active_nr);
return 0;
}
@@ -460,6 +465,8 @@
verify_uptodate(index);
}
+ nontrivial_merge = 1;
+
/* #2, #3, #4, #6, #7, #9, #11. */
count = 0;
if (!head_match || !remote_match) {
@@ -629,6 +636,11 @@
continue;
}
+ if (!strcmp(arg, "--trivial")) {
+ trivial_merges_only = 1;
+ continue;
+ }
+
/* "-m" stands for "merge", meaning we start in stage 1 */
if (!strcmp(arg, "-m")) {
if (stage || merge)
