merge(3p/git): Merge git upstream at v2.26.2 r/808

1 files changed, 178 insertions, 0 deletions

diff --git a/third_party/git/t/t5553-set-upstream.sh b/third_party/git/t/t5553-set-upstream.sh
new file mode 100755
index 000000000000..81975ad8f9eb
--- /dev/null
+++ b/third_party/git/t/t5553-set-upstream.sh
@@ -0,0 +1,178 @@
+#!/bin/sh
+
+test_description='"git fetch/pull --set-upstream" basic tests.'
+. ./test-lib.sh
+
+check_config () {
+	printf "%s\n" "$2" "$3" >"expect.$1" &&
+	{
+		git config "branch.$1.remote" && git config "branch.$1.merge"
+	} >"actual.$1" &&
+	test_cmp "expect.$1" "actual.$1"
+}
+
+check_config_missing () {
+	test_expect_code 1 git config "branch.$1.remote" &&
+	test_expect_code 1 git config "branch.$1.merge"
+}
+
+clear_config () {
+	for branch in "$@"; do
+		test_might_fail git config --unset-all "branch.$branch.remote"
+		test_might_fail git config --unset-all "branch.$branch.merge"
+	done
+}
+
+ensure_fresh_upstream () {
+	rm -rf parent && git init --bare parent
+}
+
+test_expect_success 'setup bare parent fetch' '
+	ensure_fresh_upstream &&
+	git remote add upstream parent
+'
+
+test_expect_success 'setup commit on master and other fetch' '
+	test_commit one &&
+	git push upstream master &&
+	git checkout -b other &&
+	test_commit two &&
+	git push upstream other
+'
+
+# tests for fetch --set-upstream
+
+test_expect_success 'fetch --set-upstream does not set upstream w/o branch' '
+	clear_config master other &&
+	git checkout master &&
+	git fetch --set-upstream upstream &&
+	check_config_missing master &&
+	check_config_missing other
+'
+
+test_expect_success 'fetch --set-upstream upstream master sets branch master but not other' '
+	clear_config master other &&
+	git fetch --set-upstream upstream master &&
+	check_config master upstream refs/heads/master &&
+	check_config_missing other
+'
+
+test_expect_success 'fetch --set-upstream upstream other sets branch other' '
+	clear_config master other &&
+	git fetch --set-upstream upstream other &&
+	check_config master upstream refs/heads/other &&
+	check_config_missing other
+'
+
+test_expect_success 'fetch --set-upstream master:other does not set the branch other2' '
+	clear_config other2 &&
+	git fetch --set-upstream upstream master:other2 &&
+	check_config_missing other2
+'
+
+test_expect_success 'fetch --set-upstream http://nosuchdomain.example.com fails with invalid url' '
+	# master explicitly not cleared, we check that it is not touched from previous value
+	clear_config other other2 &&
+	test_must_fail git fetch --set-upstream http://nosuchdomain.example.com &&
+	check_config master upstream refs/heads/other &&
+	check_config_missing other &&
+	check_config_missing other2
+'
+
+test_expect_success 'fetch --set-upstream with valid URL sets upstream to URL' '
+	clear_config other other2 &&
+	url="file://'"$PWD"'" &&
+	git fetch --set-upstream "$url" &&
+	check_config master "$url" HEAD &&
+	check_config_missing other &&
+	check_config_missing other2
+'
+
+# tests for pull --set-upstream
+
+test_expect_success 'setup bare parent pull' '
+	git remote rm upstream &&
+	ensure_fresh_upstream &&
+	git remote add upstream parent
+'
+
+test_expect_success 'setup commit on master and other pull' '
+	test_commit three &&
+	git push --tags upstream master &&
+	test_commit four &&
+	git push upstream other
+'
+
+test_expect_success 'pull --set-upstream upstream master sets branch master but not other' '
+	clear_config master other &&
+	git pull --set-upstream upstream master &&
+	check_config master upstream refs/heads/master &&
+	check_config_missing other
+'
+
+test_expect_success 'pull --set-upstream master:other2 does not set the branch other2' '
+	clear_config other2 &&
+	git pull --set-upstream upstream master:other2 &&
+	check_config_missing other2
+'
+
+test_expect_success 'pull --set-upstream upstream other sets branch master' '
+	clear_config master other &&
+	git pull --set-upstream upstream other &&
+	check_config master upstream refs/heads/other &&
+	check_config_missing other
+'
+
+test_expect_success 'pull --set-upstream upstream tag does not set the tag' '
+	clear_config three &&
+	git pull --tags --set-upstream upstream three &&
+	check_config_missing three
+'
+
+test_expect_success 'pull --set-upstream http://nosuchdomain.example.com fails with invalid url' '
+	# master explicitly not cleared, we check that it is not touched from previous value
+	clear_config other other2 three &&
+	test_must_fail git pull --set-upstream http://nosuchdomain.example.com &&
+	check_config master upstream refs/heads/other &&
+	check_config_missing other &&
+	check_config_missing other2 &&
+	check_config_missing three
+'
+
+test_expect_success 'pull --set-upstream upstream HEAD sets branch HEAD' '
+	clear_config master other &&
+	git pull --set-upstream upstream HEAD &&
+	check_config master upstream HEAD &&
+	git checkout other &&
+	git pull --set-upstream upstream HEAD &&
+	check_config other upstream HEAD
+'
+
+test_expect_success 'pull --set-upstream upstream with more than one branch does nothing' '
+	clear_config master three &&
+	git pull --set-upstream upstream master three &&
+	check_config_missing master &&
+	check_config_missing three
+'
+
+test_expect_success 'pull --set-upstream with valid URL sets upstream to URL' '
+	clear_config master other other2 &&
+	git checkout master &&
+	url="file://'"$PWD"'" &&
+	git pull --set-upstream "$url" &&
+	check_config master "$url" HEAD &&
+	check_config_missing other &&
+	check_config_missing other2
+'
+
+test_expect_success 'pull --set-upstream with valid URL and branch sets branch' '
+	clear_config master other other2 &&
+	git checkout master &&
+	url="file://'"$PWD"'" &&
+	git pull --set-upstream "$url" master &&
+	check_config master "$url" refs/heads/master &&
+	check_config_missing other &&
+	check_config_missing other2
+'
+
+test_done