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-rwxr-xr-xt/t4027-diff-submodule.sh286
1 files changed, 286 insertions, 0 deletions
diff --git a/t/t4027-diff-submodule.sh b/t/t4027-diff-submodule.sh
new file mode 100755
index 000000000000..9aa8e2b39b45
--- /dev/null
+++ b/t/t4027-diff-submodule.sh
@@ -0,0 +1,286 @@
+#!/bin/sh
+
+test_description='difference in submodules'
+
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/diff-lib.sh
+
+test_expect_success setup '
+	test_tick &&
+	test_create_repo sub &&
+	(
+		cd sub &&
+		echo hello >world &&
+		git add world &&
+		git commit -m submodule
+	) &&
+
+	test_tick &&
+	echo frotz >nitfol &&
+	git add nitfol sub &&
+	git commit -m superproject &&
+
+	(
+		cd sub &&
+		echo goodbye >world &&
+		git add world &&
+		git commit -m "submodule #2"
+	) &&
+
+	set x $(
+		cd sub &&
+		git rev-list HEAD
+	) &&
+	echo ":160000 160000 $3 $ZERO_OID M	sub" >expect &&
+	subtip=$3 subprev=$2
+'
+
+test_expect_success 'git diff --raw HEAD' '
+	git diff --raw --abbrev=40 HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'git diff-index --raw HEAD' '
+	git diff-index --raw HEAD >actual.index &&
+	test_cmp expect actual.index
+'
+
+test_expect_success 'git diff-files --raw' '
+	git diff-files --raw >actual.files &&
+	test_cmp expect actual.files
+'
+
+expect_from_to () {
+	printf "%sSubproject commit %s\n+Subproject commit %s\n" \
+		"-" "$1" "$2"
+}
+
+test_expect_success 'git diff HEAD' '
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev &&
+	test_cmp expect.body actual.body
+'
+
+test_expect_success 'git diff HEAD with dirty submodule (work tree)' '
+	echo >>sub/world &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev-dirty &&
+	test_cmp expect.body actual.body
+'
+
+test_expect_success 'git diff HEAD with dirty submodule (index)' '
+	(
+		cd sub &&
+		git reset --hard &&
+		echo >>world &&
+		git add world
+	) &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev-dirty &&
+	test_cmp expect.body actual.body
+'
+
+test_expect_success 'git diff HEAD with dirty submodule (untracked)' '
+	(
+		cd sub &&
+		git reset --hard &&
+		git clean -qfdx &&
+		>cruft
+	) &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev-dirty &&
+	test_cmp expect.body actual.body
+'
+
+test_expect_success 'git diff HEAD with dirty submodule (work tree, refs match)' '
+	git commit -m "x" sub &&
+	echo >>sub/world &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subprev $subprev-dirty &&
+	test_cmp expect.body actual.body &&
+	git diff --ignore-submodules HEAD >actual2 &&
+	test_must_be_empty actual2 &&
+	git diff --ignore-submodules=untracked HEAD >actual3 &&
+	sed -e "1,/^@@/d" actual3 >actual3.body &&
+	expect_from_to >expect.body $subprev $subprev-dirty &&
+	test_cmp expect.body actual3.body &&
+	git diff --ignore-submodules=dirty HEAD >actual4 &&
+	test_must_be_empty actual4
+'
+
+test_expect_success 'git diff HEAD with dirty submodule (work tree, refs match) [.gitmodules]' '
+	git config diff.ignoreSubmodules dirty &&
+	git diff HEAD >actual &&
+	test_must_be_empty actual &&
+	git config --add -f .gitmodules submodule.subname.ignore none &&
+	git config --add -f .gitmodules submodule.subname.path sub &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subprev $subprev-dirty &&
+	test_cmp expect.body actual.body &&
+	git config -f .gitmodules submodule.subname.ignore all &&
+	git config -f .gitmodules submodule.subname.path sub &&
+	git diff HEAD >actual2 &&
+	test_must_be_empty actual2 &&
+	git config -f .gitmodules submodule.subname.ignore untracked &&
+	git diff HEAD >actual3 &&
+	sed -e "1,/^@@/d" actual3 >actual3.body &&
+	expect_from_to >expect.body $subprev $subprev-dirty &&
+	test_cmp expect.body actual3.body &&
+	git config -f .gitmodules submodule.subname.ignore dirty &&
+	git diff HEAD >actual4 &&
+	test_must_be_empty actual4 &&
+	git config submodule.subname.ignore none &&
+	git config submodule.subname.path sub &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subprev $subprev-dirty &&
+	test_cmp expect.body actual.body &&
+	git config --remove-section submodule.subname &&
+	git config --remove-section -f .gitmodules submodule.subname &&
+	git config --unset diff.ignoreSubmodules &&
+	rm .gitmodules
+'
+
+test_expect_success 'git diff HEAD with dirty submodule (index, refs match)' '
+	(
+		cd sub &&
+		git reset --hard &&
+		echo >>world &&
+		git add world
+	) &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subprev $subprev-dirty &&
+	test_cmp expect.body actual.body
+'
+
+test_expect_success 'git diff HEAD with dirty submodule (untracked, refs match)' '
+	(
+		cd sub &&
+		git reset --hard &&
+		git clean -qfdx &&
+		>cruft
+	) &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subprev $subprev-dirty &&
+	test_cmp expect.body actual.body &&
+	git diff --ignore-submodules=all HEAD >actual2 &&
+	test_must_be_empty actual2 &&
+	git diff --ignore-submodules=untracked HEAD >actual3 &&
+	test_must_be_empty actual3 &&
+	git diff --ignore-submodules=dirty HEAD >actual4 &&
+	test_must_be_empty actual4
+'
+
+test_expect_success 'git diff HEAD with dirty submodule (untracked, refs match) [.gitmodules]' '
+	git config --add -f .gitmodules submodule.subname.ignore all &&
+	git config --add -f .gitmodules submodule.subname.path sub &&
+	git diff HEAD >actual2 &&
+	test_must_be_empty actual2 &&
+	git config -f .gitmodules submodule.subname.ignore untracked &&
+	git diff HEAD >actual3 &&
+	test_must_be_empty actual3 &&
+	git config -f .gitmodules submodule.subname.ignore dirty &&
+	git diff HEAD >actual4 &&
+	test_must_be_empty actual4 &&
+	git config submodule.subname.ignore none &&
+	git config submodule.subname.path sub &&
+	git diff HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subprev $subprev-dirty &&
+	test_cmp expect.body actual.body &&
+	git config --remove-section submodule.subname &&
+	git config --remove-section -f .gitmodules submodule.subname &&
+	rm .gitmodules
+'
+
+test_expect_success 'git diff between submodule commits' '
+	git diff HEAD^..HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev &&
+	test_cmp expect.body actual.body &&
+	git diff --ignore-submodules=dirty HEAD^..HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev &&
+	test_cmp expect.body actual.body &&
+	git diff --ignore-submodules HEAD^..HEAD >actual &&
+	test_must_be_empty actual
+'
+
+test_expect_success 'git diff between submodule commits [.gitmodules]' '
+	git diff HEAD^..HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev &&
+	test_cmp expect.body actual.body &&
+	git config --add -f .gitmodules submodule.subname.ignore dirty &&
+	git config --add -f .gitmodules submodule.subname.path sub &&
+	git diff HEAD^..HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev &&
+	test_cmp expect.body actual.body &&
+	git config -f .gitmodules submodule.subname.ignore all &&
+	git diff HEAD^..HEAD >actual &&
+	test_must_be_empty actual &&
+	git config submodule.subname.ignore dirty &&
+	git config submodule.subname.path sub &&
+	git diff  HEAD^..HEAD >actual &&
+	sed -e "1,/^@@/d" actual >actual.body &&
+	expect_from_to >expect.body $subtip $subprev &&
+	git config --remove-section submodule.subname &&
+	git config --remove-section -f .gitmodules submodule.subname &&
+	rm .gitmodules
+'
+
+test_expect_success 'git diff (empty submodule dir)' '
+	rm -rf sub/* sub/.git &&
+	git diff > actual.empty &&
+	test_must_be_empty actual.empty
+'
+
+test_expect_success 'conflicted submodule setup' '
+
+	# 39 efs
+	c=fffffffffffffffffffffffffffffffffffffff &&
+	(
+		echo "000000 $ZERO_OID 0	sub" &&
+		echo "160000 1$c 1	sub" &&
+		echo "160000 2$c 2	sub" &&
+		echo "160000 3$c 3	sub"
+	) | git update-index --index-info &&
+	echo >expect.nosub '\''diff --cc sub
+index 2ffffff,3ffffff..0000000
+--- a/sub
++++ b/sub
+@@@ -1,1 -1,1 +1,1 @@@
+- Subproject commit 2fffffffffffffffffffffffffffffffffffffff
+ -Subproject commit 3fffffffffffffffffffffffffffffffffffffff
+++Subproject commit 0000000000000000000000000000000000000000'\'' &&
+
+	hh=$(git rev-parse HEAD) &&
+	sed -e "s/$ZERO_OID/$hh/" expect.nosub >expect.withsub
+
+'
+
+test_expect_success 'combined (empty submodule)' '
+	rm -fr sub && mkdir sub &&
+	git diff >actual &&
+	test_cmp expect.nosub actual
+'
+
+test_expect_success 'combined (with submodule)' '
+	rm -fr sub &&
+	git clone --no-checkout . sub &&
+	git diff >actual &&
+	test_cmp expect.withsub actual
+'
+
+
+
+test_done
generated by cgit-pink 1.4.1 (git 2.44.2) at 2024-11-01T00ยท53+0000