mirror of
https://github.com/git/git.git
synced 2024-05-23 07:56:24 +02:00
757e75c81e
Normally diffs will contain a hunk header of the format "@@ -2,2 +2,15 @@ code". However when there is only 1 line of change, the unified diff format allows for the second comma separated value to be omitted in either before or after line counts. This can produce hunk headers that look like "@@ -2 +2,18 @@ code" or "@@ -2,2 +2 @@ code". As a result, scan_hunk_header mistakenly returns the line number as line count, which then results in unpredictable parsing errors with the rest of the patch, including giving multiple lines of output for a single commit. Fix by explicitly setting line count to 1 when there is no comma, and add a test. apply.c contains this same logic except it is correct. A worthwhile future project might be to unify these two diff parsers so they both benefit from fixes. Signed-off-by: Jerry Zhang <jerry@skydio.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
233 lines
5.4 KiB
Bash
Executable File
233 lines
5.4 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
test_description='git patch-id'
|
|
|
|
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
|
|
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
|
|
|
|
. ./test-lib.sh
|
|
|
|
test_expect_success 'setup' '
|
|
as="a a a a a a a a" && # eight a
|
|
test_write_lines $as >foo &&
|
|
test_write_lines $as >bar &&
|
|
git add foo bar &&
|
|
git commit -a -m initial &&
|
|
test_write_lines $as b >foo &&
|
|
test_write_lines $as b >bar &&
|
|
git commit -a -m first &&
|
|
git checkout -b same main &&
|
|
git commit --amend -m same-msg &&
|
|
git checkout -b notsame main &&
|
|
echo c >foo &&
|
|
echo c >bar &&
|
|
git commit --amend -a -m notsame-msg &&
|
|
test_write_lines bar foo >bar-then-foo &&
|
|
test_write_lines foo bar >foo-then-bar
|
|
'
|
|
|
|
test_expect_success 'patch-id output is well-formed' '
|
|
git log -p -1 >log.output &&
|
|
git patch-id <log.output >output &&
|
|
grep "^$OID_REGEX $(git rev-parse HEAD)$" output
|
|
'
|
|
|
|
#calculate patch id. Make sure output is not empty.
|
|
calc_patch_id () {
|
|
patch_name="$1"
|
|
shift
|
|
git patch-id "$@" >patch-id.output &&
|
|
sed "s/ .*//" patch-id.output >patch-id_"$patch_name" &&
|
|
test_line_count -eq 1 patch-id_"$patch_name"
|
|
}
|
|
|
|
get_top_diff () {
|
|
git log -p -1 "$@" -O bar-then-foo --
|
|
}
|
|
|
|
get_patch_id () {
|
|
get_top_diff "$1" >top-diff.output &&
|
|
calc_patch_id <top-diff.output "$@"
|
|
}
|
|
|
|
test_expect_success 'patch-id detects equality' '
|
|
get_patch_id main &&
|
|
get_patch_id same &&
|
|
test_cmp patch-id_main patch-id_same
|
|
'
|
|
|
|
test_expect_success 'patch-id detects inequality' '
|
|
get_patch_id main &&
|
|
get_patch_id notsame &&
|
|
! test_cmp patch-id_main patch-id_notsame
|
|
'
|
|
|
|
test_expect_success 'patch-id supports git-format-patch output' '
|
|
get_patch_id main &&
|
|
git checkout same &&
|
|
git format-patch -1 --stdout >format-patch.output &&
|
|
calc_patch_id same <format-patch.output &&
|
|
test_cmp patch-id_main patch-id_same &&
|
|
set $(git patch-id <format-patch.output) &&
|
|
test "$2" = $(git rev-parse HEAD)
|
|
'
|
|
|
|
test_expect_success 'whitespace is irrelevant in footer' '
|
|
get_patch_id main &&
|
|
git checkout same &&
|
|
git format-patch -1 --stdout >format-patch.output &&
|
|
sed "s/ \$//" format-patch.output | calc_patch_id same &&
|
|
test_cmp patch-id_main patch-id_same
|
|
'
|
|
|
|
cmp_patch_id () {
|
|
if
|
|
test "$1" = "relevant"
|
|
then
|
|
! test_cmp patch-id_"$2" patch-id_"$3"
|
|
else
|
|
test_cmp patch-id_"$2" patch-id_"$3"
|
|
fi
|
|
}
|
|
|
|
test_patch_id_file_order () {
|
|
relevant="$1"
|
|
shift
|
|
name="order-${1}-$relevant"
|
|
shift
|
|
get_top_diff "main" >top-diff.output &&
|
|
calc_patch_id <top-diff.output "$name" "$@" &&
|
|
git checkout same &&
|
|
git format-patch -1 --stdout -O foo-then-bar >format-patch.output &&
|
|
calc_patch_id <format-patch.output "ordered-$name" "$@" &&
|
|
cmp_patch_id $relevant "$name" "ordered-$name"
|
|
|
|
}
|
|
|
|
# combined test for options: add more tests here to make them
|
|
# run with all options
|
|
test_patch_id () {
|
|
test_patch_id_file_order "$@"
|
|
}
|
|
|
|
# small tests with detailed diagnostic for basic options.
|
|
test_expect_success 'file order is irrelevant with --stable' '
|
|
test_patch_id_file_order irrelevant --stable --stable
|
|
'
|
|
|
|
test_expect_success 'file order is relevant with --unstable' '
|
|
test_patch_id_file_order relevant --unstable --unstable
|
|
'
|
|
|
|
#Now test various option combinations.
|
|
test_expect_success 'default is unstable' '
|
|
test_patch_id relevant default
|
|
'
|
|
|
|
test_expect_success 'patchid.stable = true is stable' '
|
|
test_config patchid.stable true &&
|
|
test_patch_id irrelevant patchid.stable=true
|
|
'
|
|
|
|
test_expect_success 'patchid.stable = false is unstable' '
|
|
test_config patchid.stable false &&
|
|
test_patch_id relevant patchid.stable=false
|
|
'
|
|
|
|
test_expect_success '--unstable overrides patchid.stable = true' '
|
|
test_config patchid.stable true &&
|
|
test_patch_id relevant patchid.stable=true--unstable --unstable
|
|
'
|
|
|
|
test_expect_success '--stable overrides patchid.stable = false' '
|
|
test_config patchid.stable false &&
|
|
test_patch_id irrelevant patchid.stable=false--stable --stable
|
|
'
|
|
|
|
test_expect_success 'patch-id supports git-format-patch MIME output' '
|
|
get_patch_id main &&
|
|
git checkout same &&
|
|
git format-patch -1 --attach --stdout >format-patch.output &&
|
|
calc_patch_id <format-patch.output same &&
|
|
test_cmp patch-id_main patch-id_same
|
|
'
|
|
|
|
test_expect_success 'patch-id respects config from subdir' '
|
|
test_config patchid.stable true &&
|
|
mkdir subdir &&
|
|
|
|
# copy these because test_patch_id() looks for them in
|
|
# the current directory
|
|
cp bar-then-foo foo-then-bar subdir &&
|
|
|
|
(
|
|
cd subdir &&
|
|
test_patch_id irrelevant patchid.stable=true
|
|
)
|
|
'
|
|
|
|
test_expect_success 'patch-id handles no-nl-at-eof markers' '
|
|
cat >nonl <<-\EOF &&
|
|
diff --git i/a w/a
|
|
index e69de29..2e65efe 100644
|
|
--- i/a
|
|
+++ w/a
|
|
@@ -0,0 +1 @@
|
|
+a
|
|
\ No newline at end of file
|
|
diff --git i/b w/b
|
|
index e69de29..6178079 100644
|
|
--- i/b
|
|
+++ w/b
|
|
@@ -0,0 +1 @@
|
|
+b
|
|
EOF
|
|
cat >withnl <<-\EOF &&
|
|
diff --git i/a w/a
|
|
index e69de29..7898192 100644
|
|
--- i/a
|
|
+++ w/a
|
|
@@ -0,0 +1 @@
|
|
+a
|
|
diff --git i/b w/b
|
|
index e69de29..6178079 100644
|
|
--- i/b
|
|
+++ w/b
|
|
@@ -0,0 +1 @@
|
|
+b
|
|
EOF
|
|
calc_patch_id nonl <nonl &&
|
|
calc_patch_id withnl <withnl &&
|
|
test_cmp patch-id_nonl patch-id_withnl
|
|
'
|
|
|
|
test_expect_success 'patch-id handles diffs with one line of before/after' '
|
|
cat >diffu1 <<-\EOF &&
|
|
diff --git a/bar b/bar
|
|
index bdaf90f..31051f6 100644
|
|
--- a/bar
|
|
+++ b/bar
|
|
@@ -2 +2,2 @@
|
|
b
|
|
+c
|
|
diff --git a/car b/car
|
|
index 00750ed..2ae5e34 100644
|
|
--- a/car
|
|
+++ b/car
|
|
@@ -1 +1,2 @@
|
|
3
|
|
+d
|
|
diff --git a/foo b/foo
|
|
index e439850..7146eb8 100644
|
|
--- a/foo
|
|
+++ b/foo
|
|
@@ -2 +2,2 @@
|
|
a
|
|
+e
|
|
EOF
|
|
calc_patch_id diffu1 <diffu1 &&
|
|
test_config patchid.stable true &&
|
|
calc_patch_id diffu1stable <diffu1
|
|
'
|
|
test_done
|