#!/bin/sh
test_description='git patch-id'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'setup' '
str="ab cd ef gh ij kl mn op" &&
test_write_lines $str >foo &&
test_write_lines $str >bar &&
git add foo bar &&
git commit -a -m initial &&
test_write_lines $str b >foo &&
test_write_lines $str b >bar &&
git commit -a -m first &&
git checkout -b same main &&
git commit --amend -m same-msg &&
git checkout -b notsame main &&
echo c >foo &&
echo c >bar &&
git commit --amend -a -m notsame-msg &&
git checkout -b with_space main~ &&
cat >foo <<-\EOF &&
a b
c d
e f
g h
i j
k l
m n
op
EOF
cp foo bar &&
git add foo bar &&
git commit --amend -m "with spaces" &&
test_write_lines bar foo >bar-then-foo &&
test_write_lines foo bar >foo-then-bar
'
test_expect_success 'patch-id output is well-formed' '
git log -p -1 >log.output &&
git patch-id <log.output >output &&
grep "^$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 --full-index --
}
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 detects equality binary' '
cat >.gitattributes <<-\EOF &&
foo binary
bar binary
EOF
get_patch_id main &&
get_patch_id same &&
git log -p -1 --binary main >top-diff.output &&
calc_patch_id <top-diff.output main_binpatch &&
git log -p -1 --binary same >top-diff.output &&
calc_patch_id <top-diff.output same_binpatch &&
test_cmp patch-id_main patch-id_main_binpatch &&
test_cmp patch-id_same patch-id_same_binpatch &&
test_cmp patch-id_main patch-id_same &&
test_when_finished "rm .gitattributes"
'
test_expect_success 'patch-id detects inequality binary' '
cat >.gitattributes <<-\EOF &&
foo binary
bar binary
EOF
get_patch_id main &&
get_patch_id notsame &&
! test_cmp patch-id_main patch-id_notsame &&
test_when_finished "rm .gitattributes"
'
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"
}
test_patch_id_whitespace () {
relevant="$1"
shift
name="ws-${1}-$relevant"
shift
get_top_diff "main~" >top-diff.output &&
calc_patch_id <top-diff.output "$name" "$@" &&
get_top_diff "with_space" >top-diff.output &&
calc_patch_id <top-diff.output "ws-$name" "$@" &&
cmp_patch_id $relevant "$name" "ws-$name"
}
# combined test for options: add more tests here to make them
# run with all options
test_patch_id () {
test_patch_id_file_order "$@"
}
# 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
'
test_expect_success 'whitespace is relevant with --verbatim' '
test_patch_id_whitespace relevant --verbatim --verbatim
'
test_expect_success 'whitespace is irrelevant without --verbatim' '
test_patch_id_whitespace irrelevant --stable --stable
'
#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 'patchid.verbatim = true is correct and stable' '
test_config patchid.verbatim true &&
test_patch_id_whitespace relevant patchid.verbatim=true &&
test_patch_id irrelevant patchid.verbatim=true
'
test_expect_success 'patchid.verbatim = false is unstable' '
test_config patchid.verbatim false &&
test_patch_id relevant patchid.verbatim=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 '--verbatim overrides patchid.stable = false' '
test_config patchid.stable false &&
test_patch_id_whitespace relevant stable=false--verbatim --verbatim
'
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 &&
calc_patch_id nonl-inc-ws --verbatim <nonl &&
calc_patch_id withnl-inc-ws --verbatim <withnl &&
! test_cmp patch-id_nonl-inc-ws patch-id_withnl-inc-ws
'
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_expect_failure 'patch-id computes same ID with different object hashes' '
test_when_finished "rm -rf repo-sha1 repo-sha256" &&
cat >diff <<-\EOF &&
diff --git a/bar b/bar
index bdaf90f..31051f6 100644
--- a/bar
+++ b/bar
@@ -2 +2,2 @@
b
+c
EOF
git init --object-format=sha1 repo-sha1 &&
git -C repo-sha1 patch-id <diff >patch-id-sha1 &&
git init --object-format=sha256 repo-sha256 &&
git -C repo-sha256 patch-id <diff >patch-id-sha256 &&
test_cmp patch-id-sha1 patch-id-sha256
'
test_expect_success 'patch-id without repository' '
cat >diff <<-\EOF &&
diff --git a/bar b/bar
index bdaf90f..31051f6 100644
--- a/bar
+++ b/bar
@@ -2 +2,2 @@
b
+c
EOF
nongit git patch-id <diff
'
test_done
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