[PATCH] "git diff <tree>{3,}": do not reverse order of arguments
- From
Matt McCutchen <matt@mattmccutchen.net>
- Date
- Oct 11, 2008, 01:56 UTC
- Message-ID
- <1223690175.2828.26.camel@mattlaptop2.local>
According to the message of commit 0fe7c1de16f71312e6adac4b85bddf0d62a47168, "git diff" with three or more trees expects the merged tree first followed by the parents, in order. However, this command reversed the order of its arguments, resulting in confusing diffs. A comment /* Again, the revs are all reverse */ suggested there was a reason for this, but I can't figure out the reason, so I removed the reversal of the arguments. Test case included.
Signed-off-by: Matt McCutchen <matt@mattmccutchen.net> --- builtin-diff.c | 4 +--- t/t4013-diff-various.sh | 1 + t/t4013/diff.diff_master_master^_side | 29 +++++++++++++++++++++++++++++ 3 files changed, 31 insertions(+), 3 deletions(-) create mode 100644 t/t4013/diff.diff_master_master^_side
diff --git a/builtin-diff.c b/builtin-diff.c index 35da366..9c8c295 100644 --- a/builtin-diff.c +++ b/builtin-diff.c @@ -177,10 +177,8 @@ static int builtin_diff_combined(struct rev_info *revs, if (!revs->dense_combined_merges && !revs->combine_merges) revs->dense_combined_merges = revs->combine_merges = 1; parent = xmalloc(ents * sizeof(*parent)); - /* Again, the revs are all reverse */ for (i = 0; i < ents; i++) - hashcpy((unsigned char *)(parent + i), - ent[ents - 1 - i].item->sha1); + hashcpy((unsigned char *)(parent + i), ent[i].item->sha1); diff_tree_combined(parent[0], parent + 1, ents - 1, revs->dense_combined_merges, revs); return 0; diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh index 1a6b522..fe6080d 100755 --- a/t/t4013-diff-various.sh +++ b/t/t4013-diff-various.sh @@ -258,6 +258,7 @@ diff --patch-with-stat -r initial..side diff --patch-with-raw -r initial..side diff --name-status dir2 dir diff --no-index --name-status dir2 dir +diff master master^ side EOF test_done diff --git a/t/t4013/diff.diff_master_master^_side b/t/t4013/diff.diff_master_master^_side new file mode 100644 index 0000000..50ec9ca --- /dev/null +++ b/t/t4013/diff.diff_master_master^_side @@ -0,0 +1,29 @@ +$ git diff master master^ side +diff --cc dir/sub +index cead32e,7289e35..992913c +--- a/dir/sub ++++ b/dir/sub +@@@ -1,6 -1,4 +1,8 @@@ + A + B + +C + +D + +E + +F ++ 1 ++ 2 +diff --cc file0 +index b414108,f4615da..10a8a9f +--- a/file0 ++++ b/file0 +@@@ -1,6 -1,6 +1,9 @@@ + 1 + 2 + 3 + +4 + +5 + +6 ++ A ++ B ++ C +$
-- 1.6.0.2.519.gf6ee