t/t5400-send-pack.sh - git - Git at Google

 #!/bin/sh
 #
 # Copyright (c) 2005 Junio C Hamano
 #

 test_description='See why rewinding head breaks send-pack

 '
 . ./test-lib.sh

 cnt=64
 test_expect_success setup '
 	test_tick &&
 	mkdir mozart mozart/is &&
 	echo "Commit #0" >mozart/is/pink &&
 	git update-index --add mozart/is/pink &&
 	tree=$(git write-tree) &&
 	commit=$(echo "Commit #0" | git commit-tree $tree) &&
 	zero=$commit &&
 	parent=$zero &&
 	i=0 &&
 	while test $i -le $cnt
 	do
 	    i=$(($i+1)) &&
 	    test_tick &&
 	    echo "Commit #$i" >mozart/is/pink &&
 	    git update-index --add mozart/is/pink &&
 	    tree=$(git write-tree) &&
 	    commit=$(echo "Commit #$i" | git commit-tree $tree -p $parent) &&
 	    git update-ref refs/tags/commit$i $commit &&
 	    parent=$commit || return 1
 	done &&
 	git update-ref HEAD "$commit" &&
 	git clone ./. victim &&
 	( cd victim && git config receive.denyCurrentBranch warn && git log ) &&
 	git update-ref HEAD "$zero" &&
 	parent=$zero &&
 	i=0 &&
 	while test $i -le $cnt
 	do
 	    i=$(($i+1)) &&
 	    test_tick &&
 	    echo "Rebase #$i" >mozart/is/pink &&
 	    git update-index --add mozart/is/pink &&
 	    tree=$(git write-tree) &&
 	    commit=$(echo "Rebase #$i" | git commit-tree $tree -p $parent) &&
 	    git update-ref refs/tags/rebase$i $commit &&
 	    parent=$commit || return 1
 	done &&
 	git update-ref HEAD "$commit" &&
 	echo Rebase &&
 	git log'

 test_expect_success 'pack the source repository' '
 	git repack -a -d &&
 	git prune
 '

 test_expect_success 'pack the destination repository' '
     (
 	cd victim &&
 	git repack -a -d &&
 	git prune
     )
 '

 test_expect_success 'refuse pushing rewound head without --force' '
 	pushed_head=$(git rev-parse --verify master) &&
 	victim_orig=$(cd victim && git rev-parse --verify master) &&
 	test_must_fail git send-pack ./victim master &&
 	victim_head=$(cd victim && git rev-parse --verify master) &&
 	test "$victim_head" = "$victim_orig" &&
 	# this should update
 	git send-pack --force ./victim master &&
 	victim_head=$(cd victim && git rev-parse --verify master) &&
 	test "$victim_head" = "$pushed_head"
 '

 test_expect_success 'push can be used to delete a ref' '
 	( cd victim && git branch extra master ) &&
 	git send-pack ./victim :extra master &&
 	( cd victim &&
 	  test_must_fail git rev-parse --verify extra )
 '

 test_expect_success 'refuse deleting push with denyDeletes' '
 	(
 	    cd victim &&
 	    test_might_fail git branch -D extra &&
 	    git config receive.denyDeletes true &&
 	    git branch extra master
 	) &&
 	test_must_fail git send-pack ./victim :extra master
 '

 test_expect_success 'cannot override denyDeletes with git -c send-pack' '
 	(
 		cd victim &&
 		test_might_fail git branch -D extra &&
 		git config receive.denyDeletes true &&
 		git branch extra master
 	) &&
 	test_must_fail git -c receive.denyDeletes=false \
 					send-pack ./victim :extra master
 '

 test_expect_success 'override denyDeletes with git -c receive-pack' '
 	(
 		cd victim &&
 		test_might_fail git branch -D extra &&
 		git config receive.denyDeletes true &&
 		git branch extra master
 	) &&
 	git send-pack \
 		--receive-pack="git -c receive.denyDeletes=false receive-pack" \
 		./victim :extra master
 '

 test_expect_success 'denyNonFastforwards trumps --force' '
 	(
 	    cd victim &&
 	    test_might_fail git branch -D extra &&
 	    git config receive.denyNonFastforwards true
 	) &&
 	victim_orig=$(cd victim && git rev-parse --verify master) &&
 	test_must_fail git send-pack --force ./victim master^:master &&
 	victim_head=$(cd victim && git rev-parse --verify master) &&
 	test "$victim_orig" = "$victim_head"
 '

 test_expect_success 'send-pack --all sends all branches' '
 	# make sure we have at least 2 branches with different
 	# values, just to be thorough
 	git branch other-branch HEAD^ &&

 	git init --bare all.git &&
 	git send-pack --all all.git &&
 	git for-each-ref refs/heads >expect &&
 	git -C all.git for-each-ref refs/heads >actual &&
 	test_cmp expect actual
 '

 test_expect_success 'push --all excludes remote-tracking hierarchy' '
 	mkdir parent &&
 	(
 	    cd parent &&
 	    git init && : >file && git add file && git commit -m add
 	) &&
 	git clone parent child &&
 	(
 	    cd child && git push --all
 	) &&
 	(
 	    cd parent &&
 	    test -z "$(git for-each-ref refs/remotes/origin)"
 	)
 '

 test_expect_success 'receive-pack runs auto-gc in remote repo' '
 	rm -rf parent child &&
 	git init parent &&
 	(
 	    # Setup a repo with 2 packs
 	    cd parent &&
 	    echo "Some text" >file.txt &&
 	    git add . &&
 	    git commit -m "Initial commit" &&
 	    git repack -adl &&
 	    echo "Some more text" >>file.txt &&
 	    git commit -a -m "Second commit" &&
 	    git repack
 	) &&
 	cp -R parent child &&
 	(
 	    # Set the child to auto-pack if more than one pack exists
 	    cd child &&
 	    git config gc.autopacklimit 1 &&
 	    git config gc.autodetach false &&
 	    git branch test_auto_gc &&
 	    # And create a file that follows the temporary object naming
 	    # convention for the auto-gc to remove
 	    : >.git/objects/tmp_test_object &&
 	    test-tool chmtime =-1209601 .git/objects/tmp_test_object
 	) &&
 	(
 	    cd parent &&
 	    echo "Even more text" >>file.txt &&
 	    git commit -a -m "Third commit" &&
 	    git send-pack ../child HEAD:refs/heads/test_auto_gc
 	) &&
 	test ! -e child/.git/objects/tmp_test_object
 '

 rewound_push_setup() {
 	rm -rf parent child &&
 	mkdir parent &&
 	(
 	    cd parent &&
 	    git init &&
 	    echo one >file && git add file && git commit -m one &&
 	    git config receive.denyCurrentBranch warn &&
 	    echo two >file && git commit -a -m two
 	) &&
 	git clone parent child &&
 	(
 	    cd child && git reset --hard HEAD^
 	)
 }

 test_expect_success 'pushing explicit refspecs respects forcing' '
 	rewound_push_setup &&
 	parent_orig=$(cd parent && git rev-parse --verify master) &&
 	(
 	    cd child &&
 	    test_must_fail git send-pack ../parent \
 		refs/heads/master:refs/heads/master
 	) &&
 	parent_head=$(cd parent && git rev-parse --verify master) &&
 	test "$parent_orig" = "$parent_head" &&
 	(
 	    cd child &&
 	    git send-pack ../parent \
 	        +refs/heads/master:refs/heads/master
 	) &&
 	parent_head=$(cd parent && git rev-parse --verify master) &&
 	child_head=$(cd child && git rev-parse --verify master) &&
 	test "$parent_head" = "$child_head"
 '

 test_expect_success 'pushing wildcard refspecs respects forcing' '
 	rewound_push_setup &&
 	parent_orig=$(cd parent && git rev-parse --verify master) &&
 	(
 	    cd child &&
 	    test_must_fail git send-pack ../parent \
 	        "refs/heads/*:refs/heads/*"
 	) &&
 	parent_head=$(cd parent && git rev-parse --verify master) &&
 	test "$parent_orig" = "$parent_head" &&
 	(
 	    cd child &&
 	    git send-pack ../parent \
 	        "+refs/heads/*:refs/heads/*"
 	) &&
 	parent_head=$(cd parent && git rev-parse --verify master) &&
 	child_head=$(cd child && git rev-parse --verify master) &&
 	test "$parent_head" = "$child_head"
 '

 test_expect_success 'deny pushing to delete current branch' '
 	rewound_push_setup &&
 	(
 	    cd child &&
 	    test_must_fail git send-pack ../parent :refs/heads/master 2>errs
 	)
 '

 extract_ref_advertisement () {
 	perl -lne '
 		# \\ is there to skip capabilities after \0
 		/push< ([^\\]+)/ or next;
 		exit 0 if $1 eq "0000";
 		print $1;
 	'
 }

 test_expect_success 'receive-pack de-dupes .have lines' '
 	git init shared &&
 	git -C shared commit --allow-empty -m both &&
 	git clone -s shared fork &&
 	(
 		cd shared &&
 		git checkout -b only-shared &&
 		git commit --allow-empty -m only-shared &&
 		git update-ref refs/heads/foo HEAD
 	) &&

 	# Notable things in this expectation:
 	#  - local refs are not de-duped
 	#  - .have does not duplicate locals
 	#  - .have does not duplicate itself
 	local=$(git -C fork rev-parse HEAD) &&
 	shared=$(git -C shared rev-parse only-shared) &&
 	cat >expect <<-EOF &&
 	$local refs/heads/master
 	$local refs/remotes/origin/HEAD
 	$local refs/remotes/origin/master
 	$shared .have
 	EOF

 	GIT_TRACE_PACKET=$(pwd)/trace \
 	    git push \
 		--receive-pack="unset GIT_TRACE_PACKET; git-receive-pack" \
 		fork HEAD:foo &&
 	extract_ref_advertisement <trace >refs &&
 	test_cmp expect refs
 '

 test_done
	#!/bin/sh
	#
	# Copyright (c) 2005 Junio C Hamano
	#

	test_description='See why rewinding head breaks send-pack

	'
	. ./test-lib.sh

	cnt=64
	test_expect_success setup '
	test_tick &&
	mkdir mozart mozart/is &&
	echo "Commit #0" >mozart/is/pink &&
	git update-index --add mozart/is/pink &&
	tree=$(git write-tree) &&
	commit=$(echo "Commit #0" \| git commit-tree $tree) &&
	zero=$commit &&
	parent=$zero &&
	i=0 &&
	while test $i -le $cnt
	do
	i=$(($i+1)) &&
	test_tick &&
	echo "Commit #$i" >mozart/is/pink &&
	git update-index --add mozart/is/pink &&
	tree=$(git write-tree) &&
	commit=$(echo "Commit #$i" \| git commit-tree $tree -p $parent) &&
	git update-ref refs/tags/commit$i $commit &&
	parent=$commit \|\| return 1
	done &&
	git update-ref HEAD "$commit" &&
	git clone ./. victim &&
	( cd victim && git config receive.denyCurrentBranch warn && git log ) &&
	git update-ref HEAD "$zero" &&
	parent=$zero &&
	i=0 &&
	while test $i -le $cnt
	do
	i=$(($i+1)) &&
	test_tick &&
	echo "Rebase #$i" >mozart/is/pink &&
	git update-index --add mozart/is/pink &&
	tree=$(git write-tree) &&
	commit=$(echo "Rebase #$i" \| git commit-tree $tree -p $parent) &&
	git update-ref refs/tags/rebase$i $commit &&
	parent=$commit \|\| return 1
	done &&
	git update-ref HEAD "$commit" &&
	echo Rebase &&
	git log'

	test_expect_success 'pack the source repository' '
	git repack -a -d &&
	git prune
	'

	test_expect_success 'pack the destination repository' '
	(
	cd victim &&
	git repack -a -d &&
	git prune
	)
	'

	test_expect_success 'refuse pushing rewound head without --force' '
	pushed_head=$(git rev-parse --verify master) &&
	victim_orig=$(cd victim && git rev-parse --verify master) &&
	test_must_fail git send-pack ./victim master &&
	victim_head=$(cd victim && git rev-parse --verify master) &&
	test "$victim_head" = "$victim_orig" &&
	# this should update
	git send-pack --force ./victim master &&
	victim_head=$(cd victim && git rev-parse --verify master) &&
	test "$victim_head" = "$pushed_head"
	'

	test_expect_success 'push can be used to delete a ref' '
	( cd victim && git branch extra master ) &&
	git send-pack ./victim :extra master &&
	( cd victim &&
	test_must_fail git rev-parse --verify extra )
	'

	test_expect_success 'refuse deleting push with denyDeletes' '
	(
	cd victim &&
	test_might_fail git branch -D extra &&
	git config receive.denyDeletes true &&
	git branch extra master
	) &&
	test_must_fail git send-pack ./victim :extra master
	'

	test_expect_success 'cannot override denyDeletes with git -c send-pack' '
	(
	cd victim &&
	test_might_fail git branch -D extra &&
	git config receive.denyDeletes true &&
	git branch extra master
	) &&
	test_must_fail git -c receive.denyDeletes=false \
	send-pack ./victim :extra master
	'

	test_expect_success 'override denyDeletes with git -c receive-pack' '
	(
	cd victim &&
	test_might_fail git branch -D extra &&
	git config receive.denyDeletes true &&
	git branch extra master
	) &&
	git send-pack \
	--receive-pack="git -c receive.denyDeletes=false receive-pack" \
	./victim :extra master
	'

	test_expect_success 'denyNonFastforwards trumps --force' '
	(
	cd victim &&
	test_might_fail git branch -D extra &&
	git config receive.denyNonFastforwards true
	) &&
	victim_orig=$(cd victim && git rev-parse --verify master) &&
	test_must_fail git send-pack --force ./victim master^:master &&
	victim_head=$(cd victim && git rev-parse --verify master) &&
	test "$victim_orig" = "$victim_head"
	'

	test_expect_success 'send-pack --all sends all branches' '
	# make sure we have at least 2 branches with different
	# values, just to be thorough
	git branch other-branch HEAD^ &&

	git init --bare all.git &&
	git send-pack --all all.git &&
	git for-each-ref refs/heads >expect &&
	git -C all.git for-each-ref refs/heads >actual &&
	test_cmp expect actual
	'

	test_expect_success 'push --all excludes remote-tracking hierarchy' '
	mkdir parent &&
	(
	cd parent &&
	git init && : >file && git add file && git commit -m add
	) &&
	git clone parent child &&
	(
	cd child && git push --all
	) &&
	(
	cd parent &&
	test -z "$(git for-each-ref refs/remotes/origin)"
	)
	'

	test_expect_success 'receive-pack runs auto-gc in remote repo' '
	rm -rf parent child &&
	git init parent &&
	(
	# Setup a repo with 2 packs
	cd parent &&
	echo "Some text" >file.txt &&
	git add . &&
	git commit -m "Initial commit" &&
	git repack -adl &&
	echo "Some more text" >>file.txt &&
	git commit -a -m "Second commit" &&
	git repack
	) &&
	cp -R parent child &&
	(
	# Set the child to auto-pack if more than one pack exists
	cd child &&
	git config gc.autopacklimit 1 &&
	git config gc.autodetach false &&
	git branch test_auto_gc &&
	# And create a file that follows the temporary object naming
	# convention for the auto-gc to remove
	: >.git/objects/tmp_test_object &&
	test-tool chmtime =-1209601 .git/objects/tmp_test_object
	) &&
	(
	cd parent &&
	echo "Even more text" >>file.txt &&
	git commit -a -m "Third commit" &&
	git send-pack ../child HEAD:refs/heads/test_auto_gc
	) &&
	test ! -e child/.git/objects/tmp_test_object
	'

	rewound_push_setup() {
	rm -rf parent child &&
	mkdir parent &&
	(
	cd parent &&
	git init &&
	echo one >file && git add file && git commit -m one &&
	git config receive.denyCurrentBranch warn &&
	echo two >file && git commit -a -m two
	) &&
	git clone parent child &&
	(
	cd child && git reset --hard HEAD^
	)
	}

	test_expect_success 'pushing explicit refspecs respects forcing' '
	rewound_push_setup &&
	parent_orig=$(cd parent && git rev-parse --verify master) &&
	(
	cd child &&
	test_must_fail git send-pack ../parent \
	refs/heads/master:refs/heads/master
	) &&
	parent_head=$(cd parent && git rev-parse --verify master) &&
	test "$parent_orig" = "$parent_head" &&
	(
	cd child &&
	git send-pack ../parent \
	+refs/heads/master:refs/heads/master
	) &&
	parent_head=$(cd parent && git rev-parse --verify master) &&
	child_head=$(cd child && git rev-parse --verify master) &&
	test "$parent_head" = "$child_head"
	'

	test_expect_success 'pushing wildcard refspecs respects forcing' '
	rewound_push_setup &&
	parent_orig=$(cd parent && git rev-parse --verify master) &&
	(
	cd child &&
	test_must_fail git send-pack ../parent \
	"refs/heads/:refs/heads/"
	) &&
	parent_head=$(cd parent && git rev-parse --verify master) &&
	test "$parent_orig" = "$parent_head" &&
	(
	cd child &&
	git send-pack ../parent \
	"+refs/heads/:refs/heads/"
	) &&
	parent_head=$(cd parent && git rev-parse --verify master) &&
	child_head=$(cd child && git rev-parse --verify master) &&
	test "$parent_head" = "$child_head"
	'

	test_expect_success 'deny pushing to delete current branch' '
	rewound_push_setup &&
	(
	cd child &&
	test_must_fail git send-pack ../parent :refs/heads/master 2>errs
	)
	'

	extract_ref_advertisement () {
	perl -lne '
	# \\ is there to skip capabilities after \0
	/push< ([^\\]+)/ or next;
	exit 0 if $1 eq "0000";
	print $1;
	'
	}

	test_expect_success 'receive-pack de-dupes .have lines' '
	git init shared &&
	git -C shared commit --allow-empty -m both &&
	git clone -s shared fork &&
	(
	cd shared &&
	git checkout -b only-shared &&
	git commit --allow-empty -m only-shared &&
	git update-ref refs/heads/foo HEAD
	) &&

	# Notable things in this expectation:
	# - local refs are not de-duped
	# - .have does not duplicate locals
	# - .have does not duplicate itself
	local=$(git -C fork rev-parse HEAD) &&
	shared=$(git -C shared rev-parse only-shared) &&
	cat >expect <<-EOF &&
	$local refs/heads/master
	$local refs/remotes/origin/HEAD
	$local refs/remotes/origin/master
	$shared .have
	EOF

	GIT_TRACE_PACKET=$(pwd)/trace \
	git push \
	--receive-pack="unset GIT_TRACE_PACKET; git-receive-pack" \
	fork HEAD:foo &&
	extract_ref_advertisement <trace >refs &&
	test_cmp expect refs
	'

	test_done