Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 299 insertions, 0 deletions

diff --git a/t/t5537-fetch-shallow.sh b/t/t5537-fetch-shallow.sh
new file mode 100755
index 0000000..37f7547
--- /dev/null
+++ b/t/t5537-fetch-shallow.sh
@@ -0,0 +1,299 @@
+#!/bin/sh
+
+test_description='fetch/clone from a shallow clone'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+commit() {
+	echo "$1" >tracked &&
+	git add tracked &&
+	git commit -m "$1"
+}
+
+test_expect_success 'setup' '
+	commit 1 &&
+	commit 2 &&
+	commit 3 &&
+	commit 4 &&
+	git config --global transfer.fsckObjects true &&
+	test_oid_cache <<-\EOF
+	perl sha1:s/0034shallow %s/0036unshallow %s/
+	perl sha256:s/004cshallow %s/004eunshallow %s/
+	EOF
+'
+
+test_expect_success 'setup shallow clone' '
+	git clone --no-local --depth=2 .git shallow &&
+	git --git-dir=shallow/.git log --format=%s >actual &&
+	test_write_lines 4 3 >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success 'clone from shallow clone' '
+	git clone --no-local shallow shallow2 &&
+	(
+	cd shallow2 &&
+	git fsck &&
+	git log --format=%s >actual &&
+	test_write_lines 4 3 >expect &&
+	test_cmp expect actual
+	)
+'
+
+test_expect_success 'fetch from shallow clone' '
+	(
+	cd shallow &&
+	commit 5
+	) &&
+	(
+	cd shallow2 &&
+	git fetch &&
+	git fsck &&
+	git log --format=%s origin/main >actual &&
+	test_write_lines 5 4 3 >expect &&
+	test_cmp expect actual
+	)
+'
+
+test_expect_success 'fetch --depth from shallow clone' '
+	(
+	cd shallow &&
+	commit 6
+	) &&
+	(
+	cd shallow2 &&
+	git fetch --depth=2 &&
+	git fsck &&
+	git log --format=%s origin/main >actual &&
+	test_write_lines 6 5 >expect &&
+	test_cmp expect actual
+	)
+'
+
+test_expect_success 'fetch --unshallow from shallow clone' '
+	(
+	cd shallow2 &&
+	git fetch --unshallow &&
+	git fsck &&
+	git log --format=%s origin/main >actual &&
+	test_write_lines 6 5 4 3 >expect &&
+	test_cmp expect actual
+	)
+'
+
+test_expect_success 'fetch --unshallow from a full clone' '
+	git clone --no-local --depth=2 .git shallow3 &&
+	(
+	cd shallow3 &&
+	git log --format=%s >actual &&
+	test_write_lines 4 3 >expect &&
+	test_cmp expect actual &&
+	git -c fetch.writeCommitGraph fetch --unshallow &&
+	git log origin/main --format=%s >actual &&
+	test_write_lines 4 3 2 1 >expect &&
+	test_cmp expect actual
+	)
+'
+
+test_expect_success 'fetch something upstream has but hidden by clients shallow boundaries' '
+	# the blob "1" is available in .git but hidden by the
+	# shallow2/.git/shallow and it should be resent
+	! git --git-dir=shallow2/.git cat-file blob $(echo 1|git hash-object --stdin) >/dev/null &&
+	echo 1 >1.t &&
+	git add 1.t &&
+	git commit -m add-1-back &&
+	(
+	cd shallow2 &&
+	git fetch ../.git +refs/heads/main:refs/remotes/top/main &&
+	git fsck &&
+	git log --format=%s top/main >actual &&
+	test_write_lines add-1-back 4 3 >expect &&
+	test_cmp expect actual
+	) &&
+	git --git-dir=shallow2/.git cat-file blob $(echo 1|git hash-object --stdin) >/dev/null
+'
+
+test_expect_success 'fetch that requires changes in .git/shallow is filtered' '
+	(
+	cd shallow &&
+	git checkout --orphan no-shallow &&
+	commit no-shallow
+	) &&
+	git init notshallow &&
+	(
+	cd notshallow &&
+	git fetch ../shallow/.git refs/heads/*:refs/remotes/shallow/* &&
+	git for-each-ref --format="%(refname)" >actual.refs &&
+	echo refs/remotes/shallow/no-shallow >expect.refs &&
+	test_cmp expect.refs actual.refs &&
+	git log --format=%s shallow/no-shallow >actual &&
+	echo no-shallow >expect &&
+	test_cmp expect actual
+	)
+'
+
+test_expect_success 'fetch --update-shallow' '
+	(
+	cd shallow &&
+	git checkout main &&
+	commit 7 &&
+	git tag -m foo heavy-tag HEAD^ &&
+	git tag light-tag HEAD^:tracked
+	) &&
+	(
+	cd notshallow &&
+	git fetch --update-shallow ../shallow/.git refs/heads/*:refs/remotes/shallow/* &&
+	git fsck &&
+	git for-each-ref --sort=refname --format="%(refname)" >actual.refs &&
+	cat <<-\EOF >expect.refs &&
+	refs/remotes/shallow/main
+	refs/remotes/shallow/no-shallow
+	refs/tags/heavy-tag
+	refs/tags/light-tag
+	EOF
+	test_cmp expect.refs actual.refs &&
+	git log --format=%s shallow/main >actual &&
+	test_write_lines 7 6 5 4 3 >expect &&
+	test_cmp expect actual
+	)
+'
+
+test_expect_success 'fetch --update-shallow into a repo with submodules' '
+	test_config_global protocol.file.allow always &&
+
+	git init a-submodule &&
+	test_commit -C a-submodule foo &&
+
+	test_when_finished "rm -rf repo-with-sub" &&
+	git init repo-with-sub &&
+	git -C repo-with-sub submodule add ../a-submodule a-submodule &&
+	git -C repo-with-sub commit -m "added submodule" &&
+	git -C repo-with-sub fetch --update-shallow ../shallow/.git refs/heads/*:refs/remotes/shallow/*
+'
+
+test_expect_success 'fetch --update-shallow a commit that is also a shallow point into a repo with submodules' '
+	test_when_finished "rm -rf repo-with-sub" &&
+	git init repo-with-sub &&
+	git -c protocol.file.allow=always -C repo-with-sub \
+		submodule add ../a-submodule a-submodule &&
+	git -C repo-with-sub commit -m "added submodule" &&
+
+	SHALLOW=$(cat shallow/.git/shallow) &&
+	git -C repo-with-sub fetch --update-shallow ../shallow/.git "$SHALLOW":refs/heads/a-shallow
+'
+
+test_expect_success 'fetch --update-shallow (with fetch.writeCommitGraph)' '
+	(
+	cd shallow &&
+	git checkout main &&
+	commit 8 &&
+	git tag -m foo heavy-tag-for-graph HEAD^ &&
+	git tag light-tag-for-graph HEAD^:tracked
+	) &&
+	test_config -C notshallow fetch.writeCommitGraph true &&
+	(
+	cd notshallow &&
+	git fetch --update-shallow ../shallow/.git refs/heads/*:refs/remotes/shallow/* &&
+	git fsck &&
+	git for-each-ref --sort=refname --format="%(refname)" >actual.refs &&
+	cat <<-EOF >expect.refs &&
+	refs/remotes/shallow/main
+	refs/remotes/shallow/no-shallow
+	refs/tags/heavy-tag
+	refs/tags/heavy-tag-for-graph
+	refs/tags/light-tag
+	refs/tags/light-tag-for-graph
+	EOF
+	test_cmp expect.refs actual.refs &&
+	git log --format=%s shallow/main >actual &&
+	test_write_lines 8 7 6 5 4 3 >expect &&
+	test_cmp expect actual
+	)
+'
+
+test_expect_success POSIXPERM,SANITY 'shallow fetch from a read-only repo' '
+	cp -R .git read-only.git &&
+	test_when_finished "find read-only.git -type d -print | xargs chmod +w" &&
+	find read-only.git -print | xargs chmod -w &&
+	git clone --no-local --depth=2 read-only.git from-read-only &&
+	git --git-dir=from-read-only/.git log --format=%s >actual &&
+	test_write_lines add-1-back 4 >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success '.git/shallow is edited by repack' '
+	git init shallow-server &&
+	test_commit -C shallow-server A &&
+	test_commit -C shallow-server B &&
+	git -C shallow-server checkout -b branch &&
+	test_commit -C shallow-server C &&
+	test_commit -C shallow-server E &&
+	test_commit -C shallow-server D &&
+	d="$(git -C shallow-server rev-parse --verify D^0)" &&
+	git -C shallow-server checkout main &&
+
+	git clone --depth=1 --no-tags --no-single-branch \
+		"file://$PWD/shallow-server" shallow-client &&
+
+	: now remove the branch and fetch with prune &&
+	git -C shallow-server branch -D branch &&
+	git -C shallow-client fetch --prune --depth=1 \
+		origin "+refs/heads/*:refs/remotes/origin/*" &&
+	git -C shallow-client repack -adfl &&
+	test_must_fail git -C shallow-client rev-parse --verify $d^0 &&
+	! grep $d shallow-client/.git/shallow &&
+
+	git -C shallow-server branch branch-orig $d &&
+	git -C shallow-client fetch --prune --depth=2 \
+		origin "+refs/heads/*:refs/remotes/origin/*"
+'
+
+. "$TEST_DIRECTORY"/lib-httpd.sh
+start_httpd
+
+REPO="$HTTPD_DOCUMENT_ROOT_PATH/repo"
+
+test_expect_success 'shallow fetches check connectivity before writing shallow file' '
+	rm -rf "$REPO" client &&
+
+	git init "$REPO" &&
+	test_commit -C "$REPO" one &&
+	test_commit -C "$REPO" two &&
+	test_commit -C "$REPO" three &&
+
+	git init client &&
+
+	# Use protocol v2 to ensure that shallow information is sent exactly
+	# once by the server, since we are planning to manipulate it.
+	git -C "$REPO" config protocol.version 2 &&
+	git -C client config protocol.version 2 &&
+
+	git -C client fetch --depth=2 "$HTTPD_URL/one_time_perl/repo" main:a_branch &&
+
+	# Craft a situation in which the server sends back an unshallow request
+	# with an empty packfile. This is done by refetching with a shorter
+	# depth (to ensure that the packfile is empty), and overwriting the
+	# shallow line in the response with the unshallow line we want.
+	printf "$(test_oid perl)" \
+	       "$(git -C "$REPO" rev-parse HEAD)" \
+	       "$(git -C "$REPO" rev-parse HEAD^)" \
+	       >"$HTTPD_ROOT_PATH/one-time-perl" &&
+	test_must_fail env GIT_TEST_SIDEBAND_ALL=0 git -C client \
+		fetch --depth=1 "$HTTPD_URL/one_time_perl/repo" \
+		main:a_branch &&
+
+	# Ensure that the one-time-perl script was used.
+	! test -e "$HTTPD_ROOT_PATH/one-time-perl" &&
+
+	# Ensure that the resulting repo is consistent, despite our failure to
+	# fetch.
+	git -C client fsck
+'
+
+# DO NOT add non-httpd-specific tests here, because the last part of this
+# test script is only executed when httpd is available and enabled.
+
+test_done