Currently "--cc --summary" on a merge shows nothing. Since we show "--cc --stat" as a stat against the first parent, and because --summary is typically used in combination with --stat, it makes sense to treat them both the same way.
Note that we have to tweak t4013's setup a bit to test this case, as the existing merges do not have any --summary results against their first parent. But since the merge at the tip of 'master' does add and remove files with respect to the second parent, we can just make a reversed doppelganger merge where the parents are swapped. Signed-off-by: Jeff King <[email protected]> --- combine-diff.c | 1 + t/t4013-diff-various.sh | 7 +++++++ t/t4013/diff.diff-tree_--cc_--summary_REVERSE | 6 ++++++ 3 files changed, 14 insertions(+) create mode 100644 t/t4013/diff.diff-tree_--cc_--summary_REVERSE diff --git a/combine-diff.c b/combine-diff.c index 83ec3dfffa..f42b41d884 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -1326,6 +1326,7 @@ static const char *path_path(void *obj) */ #define STAT_FORMAT_MASK (DIFF_FORMAT_NUMSTAT \ | DIFF_FORMAT_SHORTSTAT \ + | DIFF_FORMAT_SUMMARY \ | DIFF_FORMAT_DIFFSTAT) /* find set of paths that every parent touches */ diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh index 9ccdf08730..e28953975b 100755 --- a/t/t4013-diff-various.sh +++ b/t/t4013-diff-various.sh @@ -98,6 +98,12 @@ test_expect_success setup ' git commit -m "update mode" && git checkout -f master && + # Same merge as master, but with parents reversed. Hide it in a + # pseudo-ref to avoid impacting tests with --all. + commit=$(echo reverse | + git commit-tree -p master^2 -p master^1 master^{tree}) && + git update-ref REVERSE $commit && + git config diff.renames false && git show-branch @@ -240,6 +246,7 @@ diff-tree --cc --stat --summary master diff-tree -c --stat --summary side diff-tree --cc --stat --summary side diff-tree --cc --shortstat master +diff-tree --cc --summary REVERSE # improved by Timo's patch diff-tree --cc --patch-with-stat master # improved by Timo's patch diff --git a/t/t4013/diff.diff-tree_--cc_--summary_REVERSE b/t/t4013/diff.diff-tree_--cc_--summary_REVERSE new file mode 100644 index 0000000000..e208dd5682 --- /dev/null +++ b/t/t4013/diff.diff-tree_--cc_--summary_REVERSE @@ -0,0 +1,6 @@ +$ git diff-tree --cc --summary REVERSE +2562325a7ee916efb2481da93073b82cec801cbc + create mode 100644 file1 + delete mode 100644 file2 + delete mode 100644 file3 +$ -- 2.20.1.842.g8986705066
