From c8bae7493d2f2910b57f13ded012e86bdcfb0532 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 16:47:53 +0200
Subject: Adding upstream version 1:2.39.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 t/t2405-worktree-submodule.sh | 94 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100755 t/t2405-worktree-submodule.sh

(limited to 't/t2405-worktree-submodule.sh')

diff --git a/t/t2405-worktree-submodule.sh b/t/t2405-worktree-submodule.sh
new file mode 100755
index 0000000..11018f3
--- /dev/null
+++ b/t/t2405-worktree-submodule.sh
@@ -0,0 +1,94 @@
+#!/bin/sh
+
+test_description='Combination of submodules and multiple worktrees'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+base_path=$(pwd -P)
+
+test_expect_success 'setup: create origin repos'  '
+	git config --global protocol.file.allow always &&
+	git init origin/sub &&
+	test_commit -C origin/sub file1 &&
+	git init origin/main &&
+	test_commit -C origin/main first &&
+	git -C origin/main submodule add ../sub &&
+	git -C origin/main commit -m "add sub" &&
+	test_commit -C origin/sub "file1 updated" file1 file1updated file1updated &&
+	git -C origin/main/sub pull &&
+	git -C origin/main add sub &&
+	git -C origin/main commit -m "sub updated"
+'
+
+test_expect_success 'setup: clone superproject to create main worktree' '
+	git clone --recursive "$base_path/origin/main" main
+'
+
+rev1_hash_main=$(git --git-dir=origin/main/.git show --pretty=format:%h -q "HEAD~1")
+rev1_hash_sub=$(git --git-dir=origin/sub/.git show --pretty=format:%h -q "HEAD~1")
+
+test_expect_success 'add superproject worktree' '
+	git -C main worktree add "$base_path/worktree" "$rev1_hash_main"
+'
+
+test_expect_failure 'submodule is checked out just after worktree add' '
+	git -C worktree diff --submodule main"^!" >out &&
+	grep "file1 updated" out
+'
+
+test_expect_success 'add superproject worktree and initialize submodules' '
+	git -C main worktree add "$base_path/worktree-submodule-update" "$rev1_hash_main" &&
+	git -C worktree-submodule-update submodule update
+'
+
+test_expect_success 'submodule is checked out just after submodule update in linked worktree' '
+	git -C worktree-submodule-update diff --submodule main"^!" >out &&
+	grep "file1 updated" out
+'
+
+test_expect_success 'add superproject worktree and manually add submodule worktree' '
+	git -C main worktree add "$base_path/linked_submodule" "$rev1_hash_main" &&
+	git -C main/sub worktree add "$base_path/linked_submodule/sub" "$rev1_hash_sub"
+'
+
+test_expect_success 'submodule is checked out after manually adding submodule worktree' '
+	git -C linked_submodule diff --submodule main"^!" >out &&
+	grep "file1 updated" out
+'
+
+test_expect_success 'checkout --recurse-submodules uses $GIT_DIR for submodules in a linked worktree' '
+	git -C main worktree add "$base_path/checkout-recurse" --detach  &&
+	git -C checkout-recurse submodule update --init &&
+	echo "gitdir: ../../main/.git/worktrees/checkout-recurse/modules/sub" >expect-gitfile &&
+	cat checkout-recurse/sub/.git >actual-gitfile &&
+	test_cmp expect-gitfile actual-gitfile &&
+	git -C main/sub rev-parse HEAD >expect-head-main &&
+	git -C checkout-recurse checkout --recurse-submodules HEAD~1 &&
+	cat checkout-recurse/sub/.git >actual-gitfile &&
+	git -C main/sub rev-parse HEAD >actual-head-main &&
+	test_cmp expect-gitfile actual-gitfile &&
+	test_cmp expect-head-main actual-head-main
+'
+
+test_expect_success 'core.worktree is removed in $GIT_DIR/modules/<name>/config, not in $GIT_COMMON_DIR/modules/<name>/config' '
+	echo "../../../sub" >expect-main &&
+	git -C main/sub config --get core.worktree >actual-main &&
+	test_cmp expect-main actual-main &&
+	echo "../../../../../../checkout-recurse/sub" >expect-linked &&
+	git -C checkout-recurse/sub config --get core.worktree >actual-linked &&
+	test_cmp expect-linked actual-linked &&
+	git -C checkout-recurse checkout --recurse-submodules first &&
+	test_expect_code 1 git -C main/.git/worktrees/checkout-recurse/modules/sub config --get core.worktree >linked-config &&
+	test_must_be_empty linked-config &&
+	git -C main/sub config --get core.worktree >actual-main &&
+	test_cmp expect-main actual-main
+'
+
+test_expect_success 'unsetting core.worktree does not prevent running commands directly against the submodule repository' '
+	git -C main/.git/worktrees/checkout-recurse/modules/sub log
+'
+
+test_done
-- 
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