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authorElijah Newren <newren@gmail.com>2010-09-20 02:28:47 -0600
committerJunio C Hamano <gitster@pobox.com>2010-09-29 17:32:37 -0700
commit41d70bd6a94d1bd1ec09d2a3d6ebd419abb25bca (patch)
treed382753b7dc0446c3498c053a37023155396a986
parentf63622c0a9665913f7ebade27910d8094ab4f9c4 (diff)
downloadgit-41d70bd6a94d1bd1ec09d2a3d6ebd419abb25bca.tar.gz
git-41d70bd6a94d1bd1ec09d2a3d6ebd419abb25bca.tar.xz
merge-recursive: Small code clarification -- variable name and comments
process_renames() had a variable named "stage" and derived variables src_other and dst_other whose purpose was not immediately obvious; also, I want to extend the scope of this variable and use it later, so it should have a more descriptive name. Do so, and add a brief comment explaining how it is used and what it relates to. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--merge-recursive.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/merge-recursive.c b/merge-recursive.c
index 7db1538f1..f9531c806 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -924,15 +924,23 @@ static int process_renames(struct merge_options *o,
struct string_list_item *item;
/* we only use sha1 and mode of these */
struct diff_filespec src_other, dst_other;
- int try_merge, stage = a_renames == renames1 ? 3: 2;
+ int try_merge;
- remove_file(o, 1, ren1_src, o->call_depth || stage == 3);
+ /*
+ * unpack_trees loads entries from common-commit
+ * into stage 1, from head-commit into stage 2, and
+ * from merge-commit into stage 3. We keep track
+ * of which side corresponds to the rename.
+ */
+ int renamed_stage = a_renames == renames1 ? 2 : 3;
+ int other_stage = a_renames == renames1 ? 3 : 2;
- hashcpy(src_other.sha1, ren1->src_entry->stages[stage].sha);
- src_other.mode = ren1->src_entry->stages[stage].mode;
- hashcpy(dst_other.sha1, ren1->dst_entry->stages[stage].sha);
- dst_other.mode = ren1->dst_entry->stages[stage].mode;
+ remove_file(o, 1, ren1_src, o->call_depth || renamed_stage == 2);
+ hashcpy(src_other.sha1, ren1->src_entry->stages[other_stage].sha);
+ src_other.mode = ren1->src_entry->stages[other_stage].mode;
+ hashcpy(dst_other.sha1, ren1->dst_entry->stages[other_stage].sha);
+ dst_other.mode = ren1->dst_entry->stages[other_stage].mode;
try_merge = 0;
if (sha_eq(src_other.sha1, null_sha1)) {