Fix a regression introduced in my a48e12ef7a ("range-diff: make diff
option behavior (e.g. --stat) consistent", 2018-11-13). Since the
format-patch setup code implicitly sets --stat --summary by default,
we started emitting the --stat output in the cover letter's
range-diff.
As noted in df569c3f31 ("range-diff doc: add a section about output
stability", 2018-11-09) the --stat output is currently rather useless,
and just adds noise.
Perhaps we should detect if --stat or --summary were implicitly passed
to format-patch, and then pass them along, but I think fixing it this
way is fine. If our --stat output ever becomes useful in range-diff we
can revisit this.
There's still cases like e.g. --numstat triggering rather useless
range-diff output, but I think it's OK to just handle the default
case. Users are unlikely to produce a formatted patch with the likes
of --numstat, or indeed any other custom diff option except -U<n> or
maybe -W. If they need weirder combinations of options they can always
manually produce the range-diff.
This whole situation comes about because we're assuming that when the
user passes along e.g. -U10 that they want that some 10-line context
for the range-diff as for the patches themselves. As noted in [1] I
think it's worth re-visiting this and making -U10 just apply to the
patches, and e.g. --range-diff-U10 to the range-diff. But that's left
as a topic for another series less close to a rc2.
1. https://public-inbox.org/git/87d0ri7gbs.fsf@xxxxxxxxxxxxxxxxxxx/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
builtin/log.c | 7 ++++++-
t/t3206-range-diff.sh | 12 ------------
2 files changed, 6 insertions(+), 13 deletions(-)
diff --git a/builtin/log.c b/builtin/log.c
index 0fe6f9ba1e..7cd2db0be9 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1094,9 +1094,13 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
}
if (rev->rdiff1) {
+ struct diff_options opts;
+ memcpy(&opts, &rev->diffopt, sizeof(opts));
+ opts.output_format &= ~(DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY);
+
fprintf_ln(rev->diffopt.file, "%s", rev->rdiff_title);
show_range_diff(rev->rdiff1, rev->rdiff2,
- rev->creation_factor, 1, &rev->diffopt);
+ rev->creation_factor, 1, &opts);
}
}
@@ -1697,6 +1701,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
if (!use_patch_format &&
(!rev.diffopt.output_format ||
rev.diffopt.output_format == DIFF_FORMAT_PATCH))
+ /* Needs to be mirrored in show_range_diff() invocation */
rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY;
if (!rev.diffopt.stat_width)
rev.diffopt.stat_width = MAIL_DEFAULT_WRAP;
diff --git a/t/t3206-range-diff.sh b/t/t3206-range-diff.sh
index 0235c038be..90def330bd 100755
--- a/t/t3206-range-diff.sh
+++ b/t/t3206-range-diff.sh
@@ -252,21 +252,9 @@ do
master..unmodified >actual.raw &&
sed -e "s|^:||" -e "s|:$||" >expect <<-\EOF &&
:1: 4de457d = 1: 35b9b25 s/5/A/
- : a => b | 0
- : 1 file changed, 0 insertions(+), 0 deletions(-)
- : :
:2: fccce22 = 2: de345ab s/4/A/
- : a => b | 0
- : 1 file changed, 0 insertions(+), 0 deletions(-)
- : :
:3: 147e64e = 3: 9af6654 s/11/B/
- : a => b | 0
- : 1 file changed, 0 insertions(+), 0 deletions(-)
- : :
:4: a63e992 = 4: 2901f77 s/12/B/
- : a => b | 0
- : 1 file changed, 0 insertions(+), 0 deletions(-)
- : :
:-- :
EOF
sed -ne "/^1:/,/^--/p" <actual.raw >actual &&
--
2.20.0.rc0.387.gc7a69e6b6c
