merge(third_party/git): Merge squashed git subtree at v2.23.0 r/373

Merge commit '1b593e1ea4d2af0f6444d9a7788d5d99abd6fde5' as 'third_party/git'

1 files changed, 302 insertions, 0 deletions

diff --git a/third_party/git/t/t5150-request-pull.sh b/third_party/git/t/t5150-request-pull.sh
new file mode 100755
index 0000000000..852dcd913f
--- /dev/null
+++ b/third_party/git/t/t5150-request-pull.sh
@@ -0,0 +1,302 @@
+#!/bin/sh
+
+test_description='Test workflows involving pull request.'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+
+	git init --bare upstream.git &&
+	git init --bare downstream.git &&
+	git clone upstream.git upstream-private &&
+	git clone downstream.git local &&
+
+	trash_url="file://$TRASH_DIRECTORY" &&
+	downstream_url="$trash_url/downstream.git/" &&
+	upstream_url="$trash_url/upstream.git/" &&
+
+	(
+		cd upstream-private &&
+		cat <<-\EOT >mnemonic.txt &&
+		Thirtey days hath November,
+		Aprile, June, and September:
+		EOT
+		git add mnemonic.txt &&
+		test_tick &&
+		git commit -m "\"Thirty days\", a reminder of month lengths" &&
+		git tag -m "version 1" -a initial &&
+		git push --tags origin master
+	) &&
+	(
+		cd local &&
+		git remote add upstream "$trash_url/upstream.git" &&
+		git fetch upstream &&
+		git pull upstream master &&
+		cat <<-\EOT >>mnemonic.txt &&
+		Of twyecescore-eightt is but eine,
+		And all the remnante be thrycescore-eine.
+		O’course Leap yare comes an’pynes,
+		Ev’rie foure yares, gote it ryghth.
+		An’twyecescore-eight is but twyecescore-nyne.
+		EOT
+		git add mnemonic.txt &&
+		test_tick &&
+		git commit -m "More detail" &&
+		git tag -m "version 2" -a full &&
+		git checkout -b simplify HEAD^ &&
+		mv mnemonic.txt mnemonic.standard &&
+		cat <<-\EOT >mnemonic.clarified &&
+		Thirty days has September,
+		All the rest I can’t remember.
+		EOT
+		git add -N mnemonic.standard mnemonic.clarified &&
+		git commit -a -m "Adapt to use modern, simpler English
+
+But keep the old version, too, in case some people prefer it." &&
+		git checkout master
+	)
+
+'
+
+test_expect_success 'setup: two scripts for reading pull requests' '
+
+	downstream_url_for_sed=$(
+		printf "%s\n" "$downstream_url" |
+		sed -e '\''s/\\/\\\\/g'\'' -e '\''s/[[/.*^$]/\\&/g'\''
+	) &&
+
+	cat <<-\EOT >read-request.sed &&
+	#!/bin/sed -nf
+	# Note that a request could ask for "tag $tagname"
+	/ in the Git repository at:$/!d
+	n
+	/^$/ n
+	s/ tag \([^ ]*\)$/ tag--\1/
+	s/^[ 	]*\(.*\) \([^ ]*\)/please pull\
+	\1\
+	\2/p
+	q
+	EOT
+
+	cat <<-EOT >fuzz.sed
+	#!/bin/sed -nf
+	s/$downstream_url_for_sed/URL/g
+	s/$OID_REGEX/OBJECT_NAME/g
+	s/A U Thor/AUTHOR/g
+	s/[-0-9]\{10\} [:0-9]\{8\} [-+][0-9]\{4\}/DATE/g
+	s/        [^ ].*/        SUBJECT/g
+	s/  [^ ].* (DATE)/  SUBJECT (DATE)/g
+	s|tags/full|BRANCH|g
+	s/mnemonic.txt/FILENAME/g
+	s/^version [0-9]/VERSION/
+	/^ FILENAME | *[0-9]* [-+]*\$/ b diffstat
+	/^AUTHOR ([0-9]*):\$/ b shortlog
+	p
+	b
+	: diffstat
+	n
+	/ [0-9]* files* changed/ {
+		a\\
+	DIFFSTAT
+		b
+	}
+	b diffstat
+	: shortlog
+	/^        [a-zA-Z]/ n
+	/^[a-zA-Z]* ([0-9]*):\$/ n
+	/^\$/ N
+	/^\n[a-zA-Z]* ([0-9]*):\$/!{
+		a\\
+	SHORTLOG
+		D
+	}
+	n
+	b shortlog
+	EOT
+
+'
+
+test_expect_success 'pull request when forgot to push' '
+
+	rm -fr downstream.git &&
+	git init --bare downstream.git &&
+	(
+		cd local &&
+		git checkout initial &&
+		git merge --ff-only master &&
+		test_must_fail git request-pull initial "$downstream_url" \
+			2>../err
+	) &&
+	grep "No match for commit .*" err &&
+	grep "Are you sure you pushed" err
+
+'
+
+test_expect_success 'pull request after push' '
+
+	rm -fr downstream.git &&
+	git init --bare downstream.git &&
+	(
+		cd local &&
+		git checkout initial &&
+		git merge --ff-only master &&
+		git push origin master:for-upstream &&
+		git request-pull initial origin master:for-upstream >../request
+	) &&
+	sed -nf read-request.sed <request >digest &&
+	cat digest &&
+	{
+		read task &&
+		read repository &&
+		read branch
+	} <digest &&
+	(
+		cd upstream-private &&
+		git checkout initial &&
+		git pull --ff-only "$repository" "$branch"
+	) &&
+	test "$branch" = for-upstream &&
+	test_cmp local/mnemonic.txt upstream-private/mnemonic.txt
+
+'
+
+test_expect_success 'request asks HEAD to be pulled' '
+
+	rm -fr downstream.git &&
+	git init --bare downstream.git &&
+	(
+		cd local &&
+		git checkout initial &&
+		git merge --ff-only master &&
+		git push --tags origin master simplify &&
+		git push origin master:for-upstream &&
+		git request-pull initial "$downstream_url" >../request
+	) &&
+	sed -nf read-request.sed <request >digest &&
+	cat digest &&
+	{
+		read task &&
+		read repository &&
+		read branch
+	} <digest &&
+	test -z "$branch"
+
+'
+
+test_expect_success 'pull request format' '
+
+	rm -fr downstream.git &&
+	git init --bare downstream.git &&
+	cat <<-\EOT >expect &&
+	The following changes since commit OBJECT_NAME:
+
+	  SUBJECT (DATE)
+
+	are available in the Git repository at:
+
+	  URL BRANCH
+
+	for you to fetch changes up to OBJECT_NAME:
+
+	  SUBJECT (DATE)
+
+	----------------------------------------------------------------
+	VERSION
+
+	----------------------------------------------------------------
+	SHORTLOG
+
+	DIFFSTAT
+	EOT
+	(
+		cd local &&
+		git checkout initial &&
+		git merge --ff-only master &&
+		git push origin tags/full &&
+		git request-pull initial "$downstream_url" tags/full >../request
+	) &&
+	<request sed -nf fuzz.sed >request.fuzzy &&
+	test_i18ncmp expect request.fuzzy &&
+
+	(
+		cd local &&
+		git request-pull initial "$downstream_url" tags/full:refs/tags/full
+	) >request &&
+	sed -nf fuzz.sed <request >request.fuzzy &&
+	test_i18ncmp expect request.fuzzy &&
+
+	(
+		cd local &&
+		git request-pull initial "$downstream_url" full
+	) >request &&
+	grep " tags/full\$" request
+'
+
+test_expect_success 'request-pull ignores OPTIONS_KEEPDASHDASH poison' '
+
+	(
+		cd local &&
+		OPTIONS_KEEPDASHDASH=Yes &&
+		export OPTIONS_KEEPDASHDASH &&
+		git checkout initial &&
+		git merge --ff-only master &&
+		git push origin master:for-upstream &&
+		git request-pull -- initial "$downstream_url" master:for-upstream >../request
+	)
+
+'
+
+test_expect_success 'request-pull quotes regex metacharacters properly' '
+
+	rm -fr downstream.git &&
+	git init --bare downstream.git &&
+	(
+		cd local &&
+		git checkout initial &&
+		git merge --ff-only master &&
+		git tag -mrelease v2.0 &&
+		git push origin refs/tags/v2.0:refs/tags/v2-0 &&
+		test_must_fail git request-pull initial "$downstream_url" tags/v2.0 \
+			2>../err
+	) &&
+	grep "No match for commit .*" err &&
+	grep "Are you sure you pushed" err
+
+'
+
+test_expect_success 'pull request with mismatched object' '
+
+	rm -fr downstream.git &&
+	git init --bare downstream.git &&
+	(
+		cd local &&
+		git checkout initial &&
+		git merge --ff-only master &&
+		git push origin HEAD:refs/tags/full &&
+		test_must_fail git request-pull initial "$downstream_url" tags/full \
+			2>../err
+	) &&
+	grep "points to a different object" err &&
+	grep "Are you sure you pushed" err
+
+'
+
+test_expect_success 'pull request with stale object' '
+
+	rm -fr downstream.git &&
+	git init --bare downstream.git &&
+	(
+		cd local &&
+		git checkout initial &&
+		git merge --ff-only master &&
+		git push origin refs/tags/full &&
+		git tag -f -m"Thirty-one days" full &&
+		test_must_fail git request-pull initial "$downstream_url" tags/full \
+			2>../err
+	) &&
+	grep "points to a different object" err &&
+	grep "Are you sure you pushed" err
+
+'
+
+test_done