git/t/t4056-diff-order.sh

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#!/bin/sh
test_description='diff order & rotate'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
create_files () {
echo "$1" >a.h &&
echo "$1" >b.c &&
echo "$1" >c/Makefile &&
echo "$1" >d.txt &&
git add a.h b.c c/Makefile d.txt &&
git commit -m"$1"
}
test_expect_success 'setup' '
mkdir c &&
create_files 1 &&
create_files 2 &&
cat >order_file_1 <<-\EOF &&
*Makefile
*.txt
*.h
EOF
cat >order_file_2 <<-\EOF &&
*Makefile
*.h
*.c
EOF
cat >expect_none <<-\EOF &&
a.h
b.c
c/Makefile
d.txt
EOF
cat >expect_1 <<-\EOF &&
c/Makefile
d.txt
a.h
b.c
EOF
cat >expect_2 <<-\EOF
c/Makefile
a.h
b.c
d.txt
EOF
'
test_expect_success "no order (=tree object order)" '
git diff --name-only HEAD^..HEAD >actual &&
test_cmp expect_none actual
'
test_expect_success 'missing orderfile' '
rm -f bogus_file &&
test_must_fail git diff -Obogus_file --name-only HEAD^..HEAD
'
test_expect_success POSIXPERM,SANITY 'unreadable orderfile' '
>unreadable_file &&
chmod -r unreadable_file &&
test_must_fail git diff -Ounreadable_file --name-only HEAD^..HEAD
'
test_expect_success "orderfile using option from subdir with --output" '
mkdir subdir &&
git -C subdir diff -O../order_file_1 --output ../actual --name-only HEAD^..HEAD &&
test_cmp expect_1 actual
'
for i in 1 2
do
test_expect_success "orderfile using option ($i)" '
git diff -Oorder_file_$i --name-only HEAD^..HEAD >actual &&
test_cmp expect_$i actual
'
test_expect_success PIPE "orderfile is fifo ($i)" '
rm -f order_fifo &&
mkfifo order_fifo &&
{
cat order_file_$i >order_fifo &
} &&
git diff -O order_fifo --name-only HEAD^..HEAD >actual &&
wait &&
test_cmp expect_$i actual
'
test_expect_success "orderfile using config ($i)" '
git -c diff.orderfile=order_file_$i diff --name-only HEAD^..HEAD >actual &&
test_cmp expect_$i actual
'
test_expect_success "cancelling configured orderfile ($i)" '
git -c diff.orderfile=order_file_$i diff -O/dev/null --name-only HEAD^..HEAD >actual &&
test_cmp expect_none actual
'
done
test_expect_success 'setup for testing combine-diff order' '
git checkout -b tmp HEAD~ &&
create_files 3 &&
git checkout main &&
git merge --no-commit -s ours tmp &&
create_files 5
'
test_expect_success "combine-diff: no order (=tree object order)" '
git diff --name-only HEAD HEAD^ HEAD^2 >actual &&
test_cmp expect_none actual
'
for i in 1 2
do
test_expect_success "combine-diff: orderfile using option ($i)" '
git diff -Oorder_file_$i --name-only HEAD HEAD^ HEAD^2 >actual &&
test_cmp expect_$i actual
'
done
### rotate and skip
test_expect_success 'rotate and skip setup' '
>sample1.t &&
>sample2.t &&
>sample3.t &&
>sample4.t &&
git add sample[1234].t &&
git commit -m "added" sample[1234].t &&
echo modified >>sample1.t &&
echo modified >>sample2.t &&
echo modified >>sample4.t &&
git commit -m "updated" sample[1234].t
'
test_expect_success 'diff --rotate-to' '
git diff --rotate-to=sample2.t --name-only HEAD^ >actual &&
test_write_lines sample2.t sample4.t sample1.t >expect &&
test_cmp expect actual
'
test_expect_success 'diff --skip-to' '
git diff --skip-to=sample2.t --name-only HEAD^ >actual &&
test_write_lines sample2.t sample4.t >expect &&
test_cmp expect actual
'
test_expect_success 'diff --rotate/skip-to error condition' '
test_must_fail git diff --rotate-to=sample3.t HEAD^ &&
test_must_fail git diff --skip-to=sample3.t HEAD^
'
test_expect_success 'log --rotate-to' '
git log --rotate-to=sample3.t --raw HEAD~2.. >raw &&
# just distill the commit header and paths
sed -n -e "s/^commit.*/commit/p" \
-e "/^:/s/^.* //p" raw >actual &&
cat >expect <<-\EOF &&
commit
sample4.t
sample1.t
sample2.t
commit
sample3.t
sample4.t
sample1.t
sample2.t
EOF
test_cmp expect actual
'
test_expect_success 'log --skip-to' '
git log --skip-to=sample3.t --raw HEAD~2.. >raw &&
# just distill the commit header and paths
sed -n -e "s/^commit.*/commit/p" \
-e "/^:/s/^.* //p" raw >actual &&
cat >expect <<-\EOF &&
commit
sample4.t
commit
sample3.t
sample4.t
EOF
test_cmp expect actual
'
test_done