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format-patch: reduce patch diffstat width to 72

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Patches generated by format-patch are meant to be exchanged as emails,
most of the time. And since it's generally agreed that text in mails
should be wrapped around 70 columns or so, make sure these diffstat
follow the convention (especially when used with --cover-letter since we
already defaults to wrapping 72 columns). The default can still be
overriden with command line options.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2018-02-01 19:47:50 +07:00 committed by Junio C Hamano
parent 43662b23ab
commit 071dd0ba43
2 changed files with 33 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
builtin/log.c
View file

@ -1617,6 +1617,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
(!rev.diffopt.output_format ||
rev.diffopt.output_format == DIFF_FORMAT_PATCH))
rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY;
if (!rev.diffopt.stat_width)
rev.diffopt.stat_width = MAIL_DEFAULT_WRAP;
/* Always generate a patch */
rev.diffopt.output_format |= DIFF_FORMAT_PATCH;

46
t/t4052-stat-output.sh
View file

@ -19,17 +19,33 @@ test_expect_success 'preparation' '
git commit -m message "$name"
'
cat >expect72 <<-'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
EOF
test_expect_success "format-patch: small change with long name gives more space to the name" '
git format-patch -1 --stdout >output &&
grep " | " output >actual &&
test_cmp expect72 actual
'
while read cmd args
do
cat >expect <<-'EOF'
cat >expect80 <<-'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
EOF
test_expect_success "$cmd: small change with long name gives more space to the name" '
git $cmd $args >output &&
grep " | " output >actual &&
test_cmp expect actual
test_cmp expect80 actual
'
done <<\EOF
diff HEAD^ HEAD --stat
show --stat
log -1 --stat
EOF
while read cmd args
do
cat >expect <<-'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
EOF
@ -79,11 +95,11 @@ test_expect_success 'preparation for big change tests' '
git commit -m message abcd
'
cat >expect80 <<'EOF'
abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
cat >expect72 <<'EOF'
abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
cat >expect80-graph <<'EOF'
| abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
cat >expect72-graph <<'EOF'
| abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
cat >expect200 <<'EOF'
abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
@ -107,7 +123,7 @@ do
test_cmp "$expect-graph" actual
'
done <<\EOF
ignores expect80 format-patch -1 --stdout
ignores expect72 format-patch -1 --stdout
respects expect200 diff HEAD^ HEAD --stat
respects expect200 show --stat
respects expect200 log -1 --stat
@ -135,7 +151,7 @@ do
test_cmp "$expect-graph" actual
'
done <<\EOF
ignores expect80 format-patch -1 --stdout
ignores expect72 format-patch -1 --stdout
respects expect40 diff HEAD^ HEAD --stat
respects expect40 show --stat
respects expect40 log -1 --stat
@ -163,7 +179,7 @@ do
test_cmp "$expect-graph" actual
'
done <<\EOF
ignores expect80 format-patch -1 --stdout
ignores expect72 format-patch -1 --stdout
respects expect40 diff HEAD^ HEAD --stat
respects expect40 show --stat
respects expect40 log -1 --stat
@ -250,11 +266,11 @@ show --stat
log -1 --stat
EOF
cat >expect80 <<'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++++++++++
cat >expect72 <<'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 +++++++++++++++++
EOF
cat >expect80-graph <<'EOF'
| ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++++++++++
cat >expect72-graph <<'EOF'
| ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 +++++++++++++++++
EOF
cat >expect200 <<'EOF'
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
@ -278,7 +294,7 @@ do
test_cmp "$expect-graph" actual
'
done <<\EOF
ignores expect80 format-patch -1 --stdout
ignores expect72 format-patch -1 --stdout
respects expect200 diff HEAD^ HEAD --stat
respects expect200 show --stat
respects expect200 log -1 --stat
@ -308,7 +324,7 @@ do
test_cmp "$expect-graph" actual
'
done <<\EOF
ignores expect80 format-patch -1 --stdout
ignores expect72 format-patch -1 --stdout
respects expect1 diff HEAD^ HEAD --stat
respects expect1 show --stat
respects expect1 log -1 --stat