Squashed 'third_party/git/' content from commit cb71568594

git-subtree-dir: third_party/git
git-subtree-split: cb715685942260375e1eb8153b0768a376e4ece7

t/t5572-pull-submodule.sh

@@ -0,0 +1,156 @@
+#!/bin/sh
+
+test_description='pull can handle submodules'
+
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-submodule-update.sh
+
+reset_branch_to_HEAD () {
+	git branch -D "$1" &&
+	git checkout -b "$1" HEAD &&
+	git branch --set-upstream-to="origin/$1" "$1"
+}
+
+git_pull () {
+	reset_branch_to_HEAD "$1" &&
+	git pull
+}
+
+# pulls without conflicts
+test_submodule_switch "git_pull"
+
+git_pull_ff () {
+	reset_branch_to_HEAD "$1" &&
+	git pull --ff
+}
+
+test_submodule_switch "git_pull_ff"
+
+git_pull_ff_only () {
+	reset_branch_to_HEAD "$1" &&
+	git pull --ff-only
+}
+
+test_submodule_switch "git_pull_ff_only"
+
+git_pull_noff () {
+	reset_branch_to_HEAD "$1" &&
+	git pull --no-ff
+}
+
+KNOWN_FAILURE_NOFF_MERGE_DOESNT_CREATE_EMPTY_SUBMODULE_DIR=1
+KNOWN_FAILURE_NOFF_MERGE_ATTEMPTS_TO_MERGE_REMOVED_SUBMODULE_FILES=1
+test_submodule_switch "git_pull_noff"
+
+test_expect_success 'pull --recurse-submodule setup' '
+	test_create_repo child &&
+	test_commit -C child bar &&
+
+	test_create_repo parent &&
+	test_commit -C child foo &&
+
+	git -C parent submodule add ../child sub &&
+	git -C parent commit -m "add submodule" &&
+
+	git clone --recurse-submodules parent super
+'
+
+test_expect_success 'recursive pull updates working tree' '
+	test_commit -C child merge_strategy &&
+	git -C parent submodule update --remote &&
+	git -C parent add sub &&
+	git -C parent commit -m "update submodule" &&
+
+	git -C super pull --no-rebase --recurse-submodules &&
+	test_path_is_file super/sub/merge_strategy.t
+'
+
+test_expect_success "submodule.recurse option triggers recursive pull" '
+	test_commit -C child merge_strategy_2 &&
+	git -C parent submodule update --remote &&
+	git -C parent add sub &&
+	git -C parent commit -m "update submodule" &&
+
+	git -C super -c submodule.recurse pull --no-rebase &&
+	test_path_is_file super/sub/merge_strategy_2.t
+'
+
+test_expect_success " --[no-]recurse-submodule and submodule.recurse" '
+	test_commit -C child merge_strategy_3 &&
+	git -C parent submodule update --remote &&
+	git -C parent add sub &&
+	git -C parent commit -m "update submodule" &&
+
+	git -C super -c submodule.recurse pull --no-recurse-submodules --no-rebase &&
+	test_path_is_missing super/sub/merge_strategy_3.t &&
+	git -C super -c submodule.recurse=false pull --recurse-submodules --no-rebase &&
+	test_path_is_file super/sub/merge_strategy_3.t &&
+
+	test_commit -C child merge_strategy_4 &&
+	git -C parent submodule update --remote &&
+	git -C parent add sub &&
+	git -C parent commit -m "update submodule" &&
+
+	git -C super -c submodule.recurse=false pull --no-recurse-submodules --no-rebase &&
+	test_path_is_missing super/sub/merge_strategy_4.t &&
+	git -C super -c submodule.recurse=true pull --recurse-submodules --no-rebase &&
+	test_path_is_file super/sub/merge_strategy_4.t
+'
+
+test_expect_success 'recursive rebasing pull' '
+	# change upstream
+	test_commit -C child rebase_strategy &&
+	git -C parent submodule update --remote &&
+	git -C parent add sub &&
+	git -C parent commit -m "update submodule" &&
+
+	# also have local commits
+	test_commit -C super/sub local_stuff &&
+
+	git -C super pull --rebase --recurse-submodules &&
+	test_path_is_file super/sub/rebase_strategy.t &&
+	test_path_is_file super/sub/local_stuff.t
+'
+
+test_expect_success 'pull rebase recursing fails with conflicts' '
+
+	# local changes in submodule recorded in superproject:
+	test_commit -C super/sub local_stuff_2 &&
+	git -C super add sub &&
+	git -C super commit -m "local update submodule" &&
+
+	# and in the remote as well:
+	test_commit -C child important_upstream_work &&
+	git -C parent submodule update --remote &&
+	git -C parent add sub &&
+	git -C parent commit -m "remote update submodule" &&
+
+	# Unfortunately we fail here, despite no conflict in the
+	# submodule itself, but the merge strategy in submodules
+	# does not support rebase:
+	test_must_fail git -C super pull --rebase --recurse-submodules 2>err &&
+	test_i18ngrep "locally recorded submodule modifications" err
+'
+
+test_expect_success 'branch has no merge base with remote-tracking counterpart' '
+	rm -rf parent child &&
+
+	test_create_repo a-submodule &&
+	test_commit -C a-submodule foo &&
+
+	test_create_repo parent &&
+	git -C parent submodule add "$(pwd)/a-submodule" &&
+	git -C parent commit -m foo &&
+
+	git clone parent child &&
+
+	# Reset master so that it has no merge base with
+	# refs/remotes/origin/master.
+	OTHER=$(git -C child commit-tree -m bar \
+		$(git -C child rev-parse HEAD^{tree})) &&
+	git -C child reset --hard "$OTHER" &&
+
+	git -C child pull --recurse-submodules --rebase
+'
+
+test_done