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git/t/t4013-diff-various.sh
brian m. carlson fc7e73d7ef t4013: improve diff-post-processor logic
From 72f936b1 (t4013: make test hash independent, 2020-02-07),
we started to adjust metadata of git-diff's output in order to
ignore uninteresting metadata which is dependent of underlying hash
algorithm.

However, we forgot to special case all-zero object names, which is
special for missing objects, in consequence, we could't catch
possible future bugs where object names is all-zeros including but
not limited to:
* show intend-to-add entry
* deleted entry
* diff between index and working tree with new file

We also mistakenly munged file-modes as if they were object names
abbreviated to 6 hexadecimal digits.

In addition, in the upcoming change, we would like to test for
customizing the length of abbreviated blob objects on the index line,
which is not supported by current diff-processor logic.

Let's fix the bug for all-zero object names, and file modes.
While we're at it, support abbreviation of object names up to 16 bytes.

Based-on-patch-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-21 12:43:05 -07:00

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#!/bin/sh
#
# Copyright (c) 2006 Junio C Hamano
#
test_description='Various diff formatting options'
. ./test-lib.sh
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-tool 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 $i; done >dir/sub &&
git add dir/sub &&
git commit -m "Rearranged lines in dir/sub" &&
git checkout master &&
GIT_AUTHOR_DATE="2006-06-26 00:06:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:06:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
git checkout -b mode initial &&
git update-index --chmod=+x file0 &&
git commit -m "update mode" &&
git checkout -f master &&
GIT_AUTHOR_DATE="2006-06-26 00:06:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:06:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
git checkout -b note initial &&
git update-index --chmod=+x file2 &&
git commit -m "update mode (file2)" &&
git notes add -m "note" &&
git checkout -f master &&
# Same merge as master, but with parents reversed. Hide it in a
# pseudo-ref to avoid impacting tests with --all.
commit=$(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
'
: <<\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
process_diffs () {
perl -e '
my $oid_length = length($ARGV[0]);
my $x40 = "[0-9a-f]{40}";
my $xab = "[0-9a-f]{4,16}";
my $orx = "[0-9a-f]" x $oid_length;
sub munge_oid {
my ($oid) = @_;
my $x;
return "" unless length $oid;
if ($oid =~ /^(100644|100755|120000)$/) {
return $oid;
}
if ($oid =~ /^0*$/) {
$x = "0";
} else {
$x = "f";
}
if (length($oid) == 40) {
return $x x $oid_length;
} else {
return $x x length($oid);
}
}
while (<STDIN>) {
s/($orx)/munge_oid($1)/ge;
s/From ($x40)( |\))/"From " . munge_oid($1) . $2/ge;
s/commit ($x40)($| \(from )($x40?)/"commit " . munge_oid($1) . $2 . munge_oid($3)/ge;
s/\b($x40)( |\.\.|$)/munge_oid($1) . $2/ge;
s/^($x40)($| )/munge_oid($1) . $2/e;
s/($xab)(\.\.|,| |\.\.\.|$)/munge_oid($1) . $2/ge;
print;
}
' "$ZERO_OID" <"$1"
}
V=$(git version | sed -e 's/^git version //' -e 's/\./\\./g')
while read magic cmd
do
case "$magic" in
'' | '#'*)
continue ;;
:*)
magic=${magic#:}
label="$magic-$cmd"
case "$magic" in
noellipses) ;;
*)
BUG "unknown magic $magic" ;;
esac ;;
*)
cmd="$magic $cmd" magic=
label="$cmd" ;;
esac
test=$(echo "$label" | sed -e 's|[/ ][/ ]*|_|g')
pfx=$(printf "%04d" $test_count)
expect="$TEST_DIRECTORY/t4013/diff.$test"
actual="$pfx-diff.$test"
test_expect_success "git $cmd # magic is ${magic:-(not used)}" '
{
echo "$ git $cmd"
case "$magic" in
"")
GIT_PRINT_SHA1_ELLIPSIS=yes git $cmd ;;
noellipses)
git $cmd ;;
esac |
sed -e "s/^\\(-*\\)$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 "$expect"
then
process_diffs "$actual" >actual &&
process_diffs "$expect" >expect &&
case $cmd in
*format-patch* | *-stat*)
test_i18ncmp expect actual;;
*)
test_cmp expect actual;;
esac &&
rm -f "$actual" actual expect
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
:noellipses diff-tree --root --abbrev initial
diff-tree --root -r initial
diff-tree --root -r --abbrev initial
:noellipses diff-tree --root -r --abbrev initial
diff-tree --root -r --abbrev=4 initial
:noellipses 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 initial mode
diff-tree --stat initial mode
diff-tree --summary initial mode
diff-tree master
diff-tree -p master
diff-tree -p -m master
diff-tree -c master
diff-tree -c --abbrev master
:noellipses 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
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-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
:noellipses whatchanged master
whatchanged -p master
whatchanged --root master
:noellipses 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
:noellipses 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
:noellipses 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 -U initial..side
diff -U1 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
:noellipses diff --patch-with-raw initial..side
diff --patch-with-stat -r initial..side
diff --patch-with-raw -r initial..side
:noellipses 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
diff --dirstat --cc master~1 master
# No-index --abbrev and --no-abbrev
diff --raw initial
:noellipses diff --raw initial
diff --raw --abbrev=4 initial
:noellipses diff --raw --abbrev=4 initial
diff --raw --no-abbrev initial
diff --no-index --raw dir2 dir
:noellipses diff --no-index --raw dir2 dir
diff --no-index --raw --abbrev=4 dir2 dir
:noellipses diff --no-index --raw --abbrev=4 dir2 dir
diff --no-index --raw --no-abbrev dir2 dir
diff-tree --pretty --root --stat --compact-summary initial
diff-tree --pretty -R --root --stat --compact-summary initial
diff-tree --pretty note
diff-tree --pretty --notes note
diff-tree --format=%N note
diff-tree --stat --compact-summary initial mode
diff-tree -R --stat --compact-summary initial mode
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 &&
process_diffs result >actual &&
process_diffs "$TEST_DIRECTORY/t4013/diff.diff_--cached" >expected &&
test_cmp expected actual
'
test_expect_success 'diff --cached -- file on unborn branch' '
git diff --cached -- file0 >result &&
process_diffs result >actual &&
process_diffs "$TEST_DIRECTORY/t4013/diff.diff_--cached_--_file0" >expected &&
test_cmp expected actual
'
test_expect_success 'diff --line-prefix with spaces' '
git diff --line-prefix="| | | " --cached -- file0 >result &&
process_diffs result >actual &&
process_diffs "$TEST_DIRECTORY/t4013/diff.diff_--line-prefix_--cached_--_file0" >expected &&
test_cmp expected actual
'
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