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git/t/t4013-diff-various.sh
Jack Bates 43d1948b7b diff: handle --no-abbrev in no-index case
There are two different places where the --no-abbrev option is parsed,
and two different places where SHA-1s are abbreviated. We normally parse
--no-abbrev with setup_revisions(), but in the no-index case, "git diff"
calls diff_opt_parse() directly, and diff_opt_parse() didn't handle
--no-abbrev until now. (It did handle --abbrev, however.) We normally
abbreviate SHA-1s with find_unique_abbrev(), but commit 4f03666 ("diff:
handle sha1 abbreviations outside of repository, 2016-10-20) recently
introduced a special case when you run "git diff" outside of a
repository.

setup_revisions() does also call diff_opt_parse(), but not for --abbrev
or --no-abbrev, which it handles itself. setup_revisions() sets
rev_info->abbrev, and later copies that to diff_options->abbrev. It
handles --no-abbrev by setting abbrev to zero. (This change doesn't
touch that.)

Setting abbrev to zero was broken in the outside-of-a-repository special
case, which until now resulted in a truly zero-length SHA-1, rather than
taking zero to mean do not abbreviate. The only way to trigger this bug,
however, was by running "git diff --raw" without either the --abbrev or
--no-abbrev options, because 1) without --raw it doesn't respect abbrev
(which is bizarre, but has been that way forever), 2) we silently clamp
--abbrev=0 to MINIMUM_ABBREV, and 3) --no-abbrev wasn't handled until
now.

The outside-of-a-repository case is one of three no-index cases. The
other two are when one of the files you're comparing is outside of the
repository you're in, and the --no-index option.

Signed-off-by: Jack Bates <jack@nottheoilrig.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-08 14:40:30 -08:00

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#!/bin/sh
#
# Copyright (c) 2006 Junio C Hamano
#
test_description='Various diff formatting options'
. ./test-lib.sh
LF='
'
test_expect_success setup '
GIT_AUTHOR_DATE="2006-06-26 00:00:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:00:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
mkdir dir &&
mkdir dir2 &&
for i in 1 2 3; do echo $i; done >file0 &&
for i in A B; do echo $i; done >dir/sub &&
cat file0 >file2 &&
git add file0 file2 dir/sub &&
git commit -m Initial &&
git branch initial &&
git branch side &&
GIT_AUTHOR_DATE="2006-06-26 00:01:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:01:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
for i in 4 5 6; do echo $i; done >>file0 &&
for i in C D; do echo $i; done >>dir/sub &&
rm -f file2 &&
git update-index --remove file0 file2 dir/sub &&
git commit -m "Second${LF}${LF}This is the second commit." &&
GIT_AUTHOR_DATE="2006-06-26 00:02:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:02:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
for i in A B C; do echo $i; done >file1 &&
git add file1 &&
for i in E F; do echo $i; done >>dir/sub &&
git update-index dir/sub &&
git commit -m Third &&
GIT_AUTHOR_DATE="2006-06-26 00:03:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:03:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
git checkout side &&
for i in A B C; do echo $i; done >>file0 &&
for i in 1 2; do echo $i; done >>dir/sub &&
cat dir/sub >file3 &&
git add file3 &&
git update-index file0 dir/sub &&
git commit -m Side &&
GIT_AUTHOR_DATE="2006-06-26 00:04:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:04:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
git checkout master &&
git pull -s ours . side &&
GIT_AUTHOR_DATE="2006-06-26 00:05:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:05:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
for i in A B C; do echo $i; done >>file0 &&
for i in 1 2; do echo $i; done >>dir/sub &&
git update-index file0 dir/sub &&
mkdir dir3 &&
cp dir/sub dir3/sub &&
test-chmtime +1 dir3/sub &&
git config log.showroot false &&
git commit --amend &&
GIT_AUTHOR_DATE="2006-06-26 00:06:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:06:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
git checkout -b rearrange initial &&
for i in B A; do echo $i; done >dir/sub &&
git add dir/sub &&
git commit -m "Rearranged lines in dir/sub" &&
git checkout master &&
git config diff.renames false &&
git show-branch
'
: <<\EOF
! [initial] Initial
* [master] Merge branch 'side'
! [rearrange] Rearranged lines in dir/sub
! [side] Side
----
+ [rearrange] Rearranged lines in dir/sub
- [master] Merge branch 'side'
* + [side] Side
* [master^] Third
* [master~2] Second
+*++ [initial] Initial
EOF
V=$(git version | sed -e 's/^git version //' -e 's/\./\\./g')
while read cmd
do
case "$cmd" in
'' | '#'*) continue ;;
esac
test=$(echo "$cmd" | sed -e 's|[/ ][/ ]*|_|g')
pfx=$(printf "%04d" $test_count)
expect="$TEST_DIRECTORY/t4013/diff.$test"
actual="$pfx-diff.$test"
test_expect_success "git $cmd" '
{
echo "\$ git $cmd"
git $cmd |
sed -e "s/^\\(-*\\)$V\\(-*\\)\$/\\1g-i-t--v-e-r-s-i-o-n\2/" \
-e "s/^\\(.*mixed; boundary=\"-*\\)$V\\(-*\\)\"\$/\\1g-i-t--v-e-r-s-i-o-n\2\"/"
echo "\$"
} >"$actual" &&
if test -f "$expect"
then
case $cmd in
*format-patch* | *-stat*)
test_i18ncmp "$expect" "$actual";;
*)
test_cmp "$expect" "$actual";;
esac &&
rm -f "$actual"
else
# this is to help developing new tests.
cp "$actual" "$expect"
false
fi
'
done <<\EOF
diff-tree initial
diff-tree -r initial
diff-tree -r --abbrev initial
diff-tree -r --abbrev=4 initial
diff-tree --root initial
diff-tree --root --abbrev initial
diff-tree --root -r initial
diff-tree --root -r --abbrev initial
diff-tree --root -r --abbrev=4 initial
diff-tree -p initial
diff-tree --root -p initial
diff-tree --patch-with-stat initial
diff-tree --root --patch-with-stat initial
diff-tree --patch-with-raw initial
diff-tree --root --patch-with-raw initial
diff-tree --pretty initial
diff-tree --pretty --root initial
diff-tree --pretty -p initial
diff-tree --pretty --stat initial
diff-tree --pretty --summary initial
diff-tree --pretty --stat --summary initial
diff-tree --pretty --root -p initial
diff-tree --pretty --root --stat initial
# improved by Timo's patch
diff-tree --pretty --root --summary initial
# improved by Timo's patch
diff-tree --pretty --root --summary -r initial
diff-tree --pretty --root --stat --summary initial
diff-tree --pretty --patch-with-stat initial
diff-tree --pretty --root --patch-with-stat initial
diff-tree --pretty --patch-with-raw initial
diff-tree --pretty --root --patch-with-raw initial
diff-tree --pretty=oneline initial
diff-tree --pretty=oneline --root initial
diff-tree --pretty=oneline -p initial
diff-tree --pretty=oneline --root -p initial
diff-tree --pretty=oneline --patch-with-stat initial
# improved by Timo's patch
diff-tree --pretty=oneline --root --patch-with-stat initial
diff-tree --pretty=oneline --patch-with-raw initial
diff-tree --pretty=oneline --root --patch-with-raw initial
diff-tree --pretty side
diff-tree --pretty -p side
diff-tree --pretty --patch-with-stat side
diff-tree master
diff-tree -p master
diff-tree -p -m master
diff-tree -c master
diff-tree -c --abbrev master
diff-tree --cc master
# stat only should show the diffstat with the first parent
diff-tree -c --stat master
diff-tree --cc --stat master
diff-tree -c --stat --summary master
diff-tree --cc --stat --summary master
# stat summary should show the diffstat and summary with the first parent
diff-tree -c --stat --summary side
diff-tree --cc --stat --summary side
# improved by Timo's patch
diff-tree --cc --patch-with-stat master
# improved by Timo's patch
diff-tree --cc --patch-with-stat --summary master
# this is correct
diff-tree --cc --patch-with-stat --summary side
log master
log -p master
log --root master
log --root -p master
log --patch-with-stat master
log --root --patch-with-stat master
log --root --patch-with-stat --summary master
# improved by Timo's patch
log --root -c --patch-with-stat --summary master
# improved by Timo's patch
log --root --cc --patch-with-stat --summary master
log -p --first-parent master
log -m -p --first-parent master
log -m -p master
log -SF master
log -S F master
log -SF -p master
log -SF master --max-count=0
log -SF master --max-count=1
log -SF master --max-count=2
log -GF master
log -GF -p master
log -GF -p --pickaxe-all master
log --decorate --all
log --decorate=full --all
rev-list --parents HEAD
rev-list --children HEAD
whatchanged master
whatchanged -p master
whatchanged --root master
whatchanged --root -p master
whatchanged --patch-with-stat master
whatchanged --root --patch-with-stat master
whatchanged --root --patch-with-stat --summary master
# improved by Timo's patch
whatchanged --root -c --patch-with-stat --summary master
# improved by Timo's patch
whatchanged --root --cc --patch-with-stat --summary master
whatchanged -SF master
whatchanged -SF -p master
log --patch-with-stat master -- dir/
whatchanged --patch-with-stat master -- dir/
log --patch-with-stat --summary master -- dir/
whatchanged --patch-with-stat --summary master -- dir/
show initial
show --root initial
show side
show master
show -c master
show -m master
show --first-parent master
show --stat side
show --stat --summary side
show --patch-with-stat side
show --patch-with-raw side
show --patch-with-stat --summary side
format-patch --stdout initial..side
format-patch --stdout initial..master^
format-patch --stdout initial..master
format-patch --stdout --no-numbered initial..master
format-patch --stdout --numbered initial..master
format-patch --attach --stdout initial..side
format-patch --attach --stdout --suffix=.diff initial..side
format-patch --attach --stdout initial..master^
format-patch --attach --stdout initial..master
format-patch --inline --stdout initial..side
format-patch --inline --stdout initial..master^
format-patch --inline --stdout --numbered-files initial..master
format-patch --inline --stdout initial..master
format-patch --inline --stdout --subject-prefix=TESTCASE initial..master
config format.subjectprefix DIFFERENT_PREFIX
format-patch --inline --stdout initial..master^^
format-patch --stdout --cover-letter -n initial..master^
diff --abbrev initial..side
diff -r initial..side
diff --stat initial..side
diff -r --stat initial..side
diff initial..side
diff --patch-with-stat initial..side
diff --patch-with-raw initial..side
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 --no-index --name-status -- dir2 dir
diff --no-index dir dir3
diff master master^ side
# Can't use spaces...
diff --line-prefix=abc master master^ side
diff --dirstat master~1 master~2
diff --dirstat initial rearrange
diff --dirstat-by-file initial rearrange
# No-index --abbrev and --no-abbrev
diff --raw initial
diff --raw --abbrev=4 initial
diff --raw --no-abbrev initial
diff --no-index --raw dir2 dir
diff --no-index --raw --abbrev=4 dir2 dir
diff --no-index --raw --no-abbrev dir2 dir
EOF
test_expect_success 'log -S requires an argument' '
test_must_fail git log -S
'
test_expect_success 'diff --cached on unborn branch' '
echo ref: refs/heads/unborn >.git/HEAD &&
git diff --cached >result &&
test_cmp "$TEST_DIRECTORY/t4013/diff.diff_--cached" result
'
test_expect_success 'diff --cached -- file on unborn branch' '
git diff --cached -- file0 >result &&
test_cmp "$TEST_DIRECTORY/t4013/diff.diff_--cached_--_file0" result
'
test_expect_success 'diff --line-prefix with spaces' '
git diff --line-prefix="| | | " --cached -- file0 >result &&
test_cmp "$TEST_DIRECTORY/t4013/diff.diff_--line-prefix_--cached_--_file0" result
'
test_expect_success 'diff-tree --stdin with log formatting' '
cat >expect <<-\EOF &&
Side
Third
Second
EOF
git rev-list master | git diff-tree --stdin --format=%s -s >actual &&
test_cmp expect actual
'
test_done