t/t7406-submodule-update.sh - git - Git at Google

 #!/bin/sh
 #
 # Copyright (c) 2009 Red Hat, Inc.
 #

 test_description='Test updating submodules

 This test verifies that "git submodule update" detaches the HEAD of the
 submodule and "git submodule update --rebase/--merge" does not detach the HEAD.
 '

 . ./test-lib.sh


 compare_head()
 {
     sha_master=`git rev-list --max-count=1 master`
     sha_head=`git rev-list --max-count=1 HEAD`

     test "$sha_master" = "$sha_head"
 }


 test_expect_success 'setup a submodule tree' '
 	echo file > file &&
 	git add file &&
 	test_tick &&
 	git commit -m upstream &&
 	git clone . super &&
 	git clone super submodule &&
 	git clone super rebasing &&
 	git clone super merging &&
 	git clone super none &&
 	(cd super &&
 	 git submodule add ../submodule submodule &&
 	 test_tick &&
 	 git commit -m "submodule" &&
 	 git submodule init submodule
 	) &&
 	(cd submodule &&
 	echo "line2" > file &&
 	git add file &&
 	git commit -m "Commit 2"
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  git pull --rebase origin
 	 ) &&
 	 git add submodule &&
 	 git commit -m "submodule update"
 	) &&
 	(cd super &&
 	 git submodule add ../rebasing rebasing &&
 	 test_tick &&
 	 git commit -m "rebasing"
 	) &&
 	(cd super &&
 	 git submodule add ../merging merging &&
 	 test_tick &&
 	 git commit -m "rebasing"
 	) &&
 	(cd super &&
 	 git submodule add ../none none &&
 	 test_tick &&
 	 git commit -m "none"
 	)
 '

 test_expect_success 'submodule update detaching the HEAD ' '
 	(cd super/submodule &&
 	 git reset --hard HEAD~1
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update submodule &&
 	 cd submodule &&
 	 ! compare_head
 	)
 '

 test_expect_success 'submodule update from subdirectory' '
 	(cd super/submodule &&
 	 git reset --hard HEAD~1
 	) &&
 	mkdir super/sub &&
 	(cd super/sub &&
 	 (cd ../submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update ../submodule &&
 	 cd ../submodule &&
 	 ! compare_head
 	)
 '

 apos="'";
 test_expect_success 'submodule update does not fetch already present commits' '
 	(cd submodule &&
 	  echo line3 >> file &&
 	  git add file &&
 	  test_tick &&
 	  git commit -m "upstream line3"
 	) &&
 	(cd super/submodule &&
 	  head=$(git rev-parse --verify HEAD) &&
 	  echo "Submodule path ${apos}submodule$apos: checked out $apos$head$apos" > ../../expected &&
 	  git reset --hard HEAD~1
 	) &&
 	(cd super &&
 	  git submodule update > ../actual 2> ../actual.err
 	) &&
 	test_i18ncmp expected actual &&
 	! test -s actual.err
 '

 test_expect_success 'submodule update should fail due to local changes' '
 	(cd super/submodule &&
 	 git reset --hard HEAD~1 &&
 	 echo "local change" > file
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 test_must_fail git submodule update submodule
 	)
 '
 test_expect_success 'submodule update should throw away changes with --force ' '
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update --force submodule &&
 	 cd submodule &&
 	 ! compare_head
 	)
 '

 test_expect_success 'submodule update --force forcibly checks out submodules' '
 	(cd super &&
 	 (cd submodule &&
 	  rm -f file
 	 ) &&
 	 git submodule update --force submodule &&
 	 (cd submodule &&
 	  test "$(git status -s file)" = ""
 	 )
 	)
 '

 test_expect_success 'submodule update --remote should fetch upstream changes' '
 	(cd submodule &&
 	 echo line4 >> file &&
 	 git add file &&
 	 test_tick &&
 	 git commit -m "upstream line4"
 	) &&
 	(cd super &&
 	 git submodule update --remote --force submodule &&
 	 cd submodule &&
 	 test "$(git log -1 --oneline)" = "$(GIT_DIR=../../submodule/.git git log -1 --oneline)"
 	)
 '

 test_expect_success 'local config should override .gitmodules branch' '
 	(cd submodule &&
 	 git checkout -b test-branch &&
 	 echo line5 >> file &&
 	 git add file &&
 	 test_tick &&
 	 git commit -m "upstream line5" &&
 	 git checkout master
 	) &&
 	(cd super &&
 	 git config submodule.submodule.branch test-branch &&
 	 git submodule update --remote --force submodule &&
 	 cd submodule &&
 	 test "$(git log -1 --oneline)" = "$(GIT_DIR=../../submodule/.git git log -1 --oneline test-branch)"
 	)
 '

 test_expect_success 'submodule update --rebase staying on master' '
 	(cd super/submodule &&
 	  git checkout master
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update --rebase submodule &&
 	 cd submodule &&
 	 compare_head
 	)
 '

 test_expect_success 'submodule update --merge staying on master' '
 	(cd super/submodule &&
 	  git reset --hard HEAD~1
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update --merge submodule &&
 	 cd submodule &&
 	 compare_head
 	)
 '

 test_expect_success 'submodule update - rebase in .git/config' '
 	(cd super &&
 	 git config submodule.submodule.update rebase
 	) &&
 	(cd super/submodule &&
 	  git reset --hard HEAD~1
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update submodule &&
 	 cd submodule &&
 	 compare_head
 	)
 '

 test_expect_success 'submodule update - checkout in .git/config but --rebase given' '
 	(cd super &&
 	 git config submodule.submodule.update checkout
 	) &&
 	(cd super/submodule &&
 	  git reset --hard HEAD~1
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update --rebase submodule &&
 	 cd submodule &&
 	 compare_head
 	)
 '

 test_expect_success 'submodule update - merge in .git/config' '
 	(cd super &&
 	 git config submodule.submodule.update merge
 	) &&
 	(cd super/submodule &&
 	  git reset --hard HEAD~1
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update submodule &&
 	 cd submodule &&
 	 compare_head
 	)
 '

 test_expect_success 'submodule update - checkout in .git/config but --merge given' '
 	(cd super &&
 	 git config submodule.submodule.update checkout
 	) &&
 	(cd super/submodule &&
 	  git reset --hard HEAD~1
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update --merge submodule &&
 	 cd submodule &&
 	 compare_head
 	)
 '

 test_expect_success 'submodule update - checkout in .git/config' '
 	(cd super &&
 	 git config submodule.submodule.update checkout
 	) &&
 	(cd super/submodule &&
 	  git reset --hard HEAD^
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update submodule &&
 	 cd submodule &&
 	 ! compare_head
 	)
 '

 test_expect_success 'submodule update - command in .git/config' '
 	(cd super &&
 	 git config submodule.submodule.update "!git checkout"
 	) &&
 	(cd super/submodule &&
 	  git reset --hard HEAD^
 	) &&
 	(cd super &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git submodule update submodule &&
 	 cd submodule &&
 	 ! compare_head
 	)
 '

 test_expect_success 'submodule update - command in .git/config catches failure' '
 	(cd super &&
 	 git config submodule.submodule.update "!false"
 	) &&
 	(cd super/submodule &&
 	  git reset --hard HEAD^
 	) &&
 	(cd super &&
 	 test_must_fail git submodule update submodule
 	)
 '

 test_expect_success 'submodule init does not copy command into .git/config' '
 	(cd super &&
 	 H=$(git ls-files -s submodule | cut -d" " -f2) &&
 	 mkdir submodule1 &&
 	 git update-index --add --cacheinfo 160000 $H submodule1 &&
 	 git config -f .gitmodules submodule.submodule1.path submodule1 &&
 	 git config -f .gitmodules submodule.submodule1.url ../submodule &&
 	 git config -f .gitmodules submodule.submodule1.update !false &&
 	 git submodule init submodule1 &&
 	 echo "none" >expect &&
 	 git config submodule.submodule1.update >actual &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success 'submodule init picks up rebase' '
 	(cd super &&
 	 git config -f .gitmodules submodule.rebasing.update rebase &&
 	 git submodule init rebasing &&
 	 test "rebase" = "$(git config submodule.rebasing.update)"
 	)
 '

 test_expect_success 'submodule init picks up merge' '
 	(cd super &&
 	 git config -f .gitmodules submodule.merging.update merge &&
 	 git submodule init merging &&
 	 test "merge" = "$(git config submodule.merging.update)"
 	)
 '

 test_expect_success 'submodule update --merge  - ignores --merge  for new submodules' '
 	(cd super &&
 	 rm -rf submodule &&
 	 git submodule update submodule &&
 	 git status -s submodule >expect &&
 	 rm -rf submodule &&
 	 git submodule update --merge submodule &&
 	 git status -s submodule >actual &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success 'submodule update --rebase - ignores --rebase for new submodules' '
 	(cd super &&
 	 rm -rf submodule &&
 	 git submodule update submodule &&
 	 git status -s submodule >expect &&
 	 rm -rf submodule &&
 	 git submodule update --rebase submodule &&
 	 git status -s submodule >actual &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success 'submodule update ignores update=merge config for new submodules' '
 	(cd super &&
 	 rm -rf submodule &&
 	 git submodule update submodule &&
 	 git status -s submodule >expect &&
 	 rm -rf submodule &&
 	 git config submodule.submodule.update merge &&
 	 git submodule update submodule &&
 	 git status -s submodule >actual &&
 	 git config --unset submodule.submodule.update &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success 'submodule update ignores update=rebase config for new submodules' '
 	(cd super &&
 	 rm -rf submodule &&
 	 git submodule update submodule &&
 	 git status -s submodule >expect &&
 	 rm -rf submodule &&
 	 git config submodule.submodule.update rebase &&
 	 git submodule update submodule &&
 	 git status -s submodule >actual &&
 	 git config --unset submodule.submodule.update &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success 'submodule init picks up update=none' '
 	(cd super &&
 	 git config -f .gitmodules submodule.none.update none &&
 	 git submodule init none &&
 	 test "none" = "$(git config submodule.none.update)"
 	)
 '

 test_expect_success 'submodule update - update=none in .git/config' '
 	(cd super &&
 	 git config submodule.submodule.update none &&
 	 (cd submodule &&
 	  git checkout master &&
 	  compare_head
 	 ) &&
 	 git diff --raw | grep "	submodule" &&
 	 git submodule update &&
 	 git diff --raw | grep "	submodule" &&
 	 (cd submodule &&
 	  compare_head
 	 ) &&
 	 git config --unset submodule.submodule.update &&
 	 git submodule update submodule
 	)
 '

 test_expect_success 'submodule update - update=none in .git/config but --checkout given' '
 	(cd super &&
 	 git config submodule.submodule.update none &&
 	 (cd submodule &&
 	  git checkout master &&
 	  compare_head
 	 ) &&
 	 git diff --raw | grep "	submodule" &&
 	 git submodule update --checkout &&
 	 test_must_fail git diff --raw \| grep "	submodule" &&
 	 (cd submodule &&
 	  test_must_fail compare_head
 	 ) &&
 	 git config --unset submodule.submodule.update
 	)
 '

 test_expect_success 'submodule update --init skips submodule with update=none' '
 	(cd super &&
 	 git add .gitmodules &&
 	 git commit -m ".gitmodules"
 	) &&
 	git clone super cloned &&
 	(cd cloned &&
 	 git submodule update --init &&
 	 test -e submodule/.git &&
 	 test_must_fail test -e none/.git
 	)
 '

 test_expect_success 'submodule update continues after checkout error' '
 	(cd super &&
 	 git reset --hard HEAD &&
 	 git submodule add ../submodule submodule2 &&
 	 git submodule init &&
 	 git commit -am "new_submodule" &&
 	 (cd submodule2 &&
 	  git rev-parse --verify HEAD >../expect
 	 ) &&
 	 (cd submodule &&
 	  test_commit "update_submodule" file
 	 ) &&
 	 (cd submodule2 &&
 	  test_commit "update_submodule2" file
 	 ) &&
 	 git add submodule &&
 	 git add submodule2 &&
 	 git commit -m "two_new_submodule_commits" &&
 	 (cd submodule &&
 	  echo "" > file
 	 ) &&
 	 git checkout HEAD^ &&
 	 test_must_fail git submodule update &&
 	 (cd submodule2 &&
 	  git rev-parse --verify HEAD >../actual
 	 ) &&
 	 test_cmp expect actual
 	)
 '
 test_expect_success 'submodule update continues after recursive checkout error' '
 	(cd super &&
 	 git reset --hard HEAD &&
 	 git checkout master &&
 	 git submodule update &&
 	 (cd submodule &&
 	  git submodule add ../submodule subsubmodule &&
 	  git submodule init &&
 	  git commit -m "new_subsubmodule"
 	 ) &&
 	 git add submodule &&
 	 git commit -m "update_submodule" &&
 	 (cd submodule &&
 	  (cd subsubmodule &&
 	   test_commit "update_subsubmodule" file
 	  ) &&
 	  git add subsubmodule &&
 	  test_commit "update_submodule_again" file &&
 	  (cd subsubmodule &&
 	   test_commit "update_subsubmodule_again" file
 	  ) &&
 	  test_commit "update_submodule_again_again" file
 	 ) &&
 	 (cd submodule2 &&
 	  git rev-parse --verify HEAD >../expect &&
 	  test_commit "update_submodule2_again" file
 	 ) &&
 	 git add submodule &&
 	 git add submodule2 &&
 	 git commit -m "new_commits" &&
 	 git checkout HEAD^ &&
 	 (cd submodule &&
 	  git checkout HEAD^ &&
 	  (cd subsubmodule &&
 	   echo "" > file
 	  )
 	 ) &&
 	 test_must_fail git submodule update --recursive &&
 	 (cd submodule2 &&
 	  git rev-parse --verify HEAD >../actual
 	 ) &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success 'submodule update exit immediately in case of merge conflict' '
 	(cd super &&
 	 git checkout master &&
 	 git reset --hard HEAD &&
 	 (cd submodule &&
 	  (cd subsubmodule &&
 	   git reset --hard HEAD
 	  )
 	 ) &&
 	 git submodule update --recursive &&
 	 (cd submodule &&
 	  test_commit "update_submodule_2" file
 	 ) &&
 	 (cd submodule2 &&
 	  test_commit "update_submodule2_2" file
 	 ) &&
 	 git add submodule &&
 	 git add submodule2 &&
 	 git commit -m "two_new_submodule_commits" &&
 	 (cd submodule &&
 	  git checkout master &&
 	  test_commit "conflict" file &&
 	  echo "conflict" > file
 	 ) &&
 	 git checkout HEAD^ &&
 	 (cd submodule2 &&
 	  git rev-parse --verify HEAD >../expect
 	 ) &&
 	 git config submodule.submodule.update merge &&
 	 test_must_fail git submodule update &&
 	 (cd submodule2 &&
 	  git rev-parse --verify HEAD >../actual
 	 ) &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success 'submodule update exit immediately after recursive rebase error' '
 	(cd super &&
 	 git checkout master &&
 	 git reset --hard HEAD &&
 	 (cd submodule &&
 	  git reset --hard HEAD &&
 	  git submodule update --recursive
 	 ) &&
 	 (cd submodule &&
 	  test_commit "update_submodule_3" file
 	 ) &&
 	 (cd submodule2 &&
 	  test_commit "update_submodule2_3" file
 	 ) &&
 	 git add submodule &&
 	 git add submodule2 &&
 	 git commit -m "two_new_submodule_commits" &&
 	 (cd submodule &&
 	  git checkout master &&
 	  test_commit "conflict2" file &&
 	  echo "conflict" > file
 	 ) &&
 	 git checkout HEAD^ &&
 	 (cd submodule2 &&
 	  git rev-parse --verify HEAD >../expect
 	 ) &&
 	 git config submodule.submodule.update rebase &&
 	 test_must_fail git submodule update &&
 	 (cd submodule2 &&
 	  git rev-parse --verify HEAD >../actual
 	 ) &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success 'add different submodules to the same path' '
 	(cd super &&
 	 git submodule add ../submodule s1 &&
 	 test_must_fail git submodule add ../merging s1
 	)
 '

 test_expect_success 'submodule add places git-dir in superprojects git-dir' '
 	(cd super &&
 	 mkdir deeper &&
 	 git submodule add ../submodule deeper/submodule &&
 	 (cd deeper/submodule &&
 	  git log > ../../expected
 	 ) &&
 	 (cd .git/modules/deeper/submodule &&
 	  git log > ../../../../actual
 	 ) &&
 	 test_cmp actual expected
 	)
 '

 test_expect_success 'submodule update places git-dir in superprojects git-dir' '
 	(cd super &&
 	 git commit -m "added submodule"
 	) &&
 	git clone super super2 &&
 	(cd super2 &&
 	 git submodule init deeper/submodule &&
 	 git submodule update &&
 	 (cd deeper/submodule &&
 	  git log > ../../expected
 	 ) &&
 	 (cd .git/modules/deeper/submodule &&
 	  git log > ../../../../actual
 	 ) &&
 	 test_cmp actual expected
 	)
 '

 test_expect_success 'submodule add places git-dir in superprojects git-dir recursive' '
 	(cd super2 &&
 	 (cd deeper/submodule &&
 	  git submodule add ../submodule subsubmodule &&
 	  (cd subsubmodule &&
 	   git log > ../../../expected
 	  ) &&
 	  git commit -m "added subsubmodule" &&
 	  git push origin :
 	 ) &&
 	 (cd .git/modules/deeper/submodule/modules/subsubmodule &&
 	  git log > ../../../../../actual
 	 ) &&
 	 git add deeper/submodule &&
 	 git commit -m "update submodule" &&
 	 git push origin : &&
 	 test_cmp actual expected
 	)
 '

 test_expect_success 'submodule update places git-dir in superprojects git-dir recursive' '
 	mkdir super_update_r &&
 	(cd super_update_r &&
 	 git init --bare
 	) &&
 	mkdir subsuper_update_r &&
 	(cd subsuper_update_r &&
 	 git init --bare
 	) &&
 	mkdir subsubsuper_update_r &&
 	(cd subsubsuper_update_r &&
 	 git init --bare
 	) &&
 	git clone subsubsuper_update_r subsubsuper_update_r2 &&
 	(cd subsubsuper_update_r2 &&
 	 test_commit "update_subsubsuper" file &&
 	 git push origin master
 	) &&
 	git clone subsuper_update_r subsuper_update_r2 &&
 	(cd subsuper_update_r2 &&
 	 test_commit "update_subsuper" file &&
 	 git submodule add ../subsubsuper_update_r subsubmodule &&
 	 git commit -am "subsubmodule" &&
 	 git push origin master
 	) &&
 	git clone super_update_r super_update_r2 &&
 	(cd super_update_r2 &&
 	 test_commit "update_super" file &&
 	 git submodule add ../subsuper_update_r submodule &&
 	 git commit -am "submodule" &&
 	 git push origin master
 	) &&
 	rm -rf super_update_r2 &&
 	git clone super_update_r super_update_r2 &&
 	(cd super_update_r2 &&
 	 git submodule update --init --recursive >actual &&
 	 test_i18ngrep "Submodule path .submodule/subsubmodule.: checked out" actual &&
 	 (cd submodule/subsubmodule &&
 	  git log > ../../expected
 	 ) &&
 	 (cd .git/modules/submodule/modules/subsubmodule
 	  git log > ../../../../../actual
 	 )
 	 test_cmp actual expected
 	)
 '

 test_expect_success 'submodule add properly re-creates deeper level submodules' '
 	(cd super &&
 	 git reset --hard master &&
 	 rm -rf deeper/ &&
 	 git submodule add --force ../submodule deeper/submodule
 	)
 '

 test_expect_success 'submodule update properly revives a moved submodule' '
 	(cd super &&
 	 H=$(git rev-parse --short HEAD) &&
 	 git commit -am "pre move" &&
 	 H2=$(git rev-parse --short HEAD) &&
 	 git status | sed "s/$H/XXX/" >expect &&
 	 H=$(cd submodule2; git rev-parse HEAD) &&
 	 git rm --cached submodule2 &&
 	 rm -rf submodule2 &&
 	 mkdir -p "moved/sub module" &&
 	 git update-index --add --cacheinfo 160000 $H "moved/sub module" &&
 	 git config -f .gitmodules submodule.submodule2.path "moved/sub module"
 	 git commit -am "post move" &&
 	 git submodule update &&
 	 git status | sed "s/$H2/XXX/" >actual &&
 	 test_cmp expect actual
 	)
 '

 test_expect_success SYMLINKS 'submodule update can handle symbolic links in pwd' '
 	mkdir -p linked/dir &&
 	ln -s linked/dir linkto &&
 	(cd linkto &&
 	 git clone "$TRASH_DIRECTORY"/super_update_r2 super &&
 	 (cd super &&
 	  git submodule update --init --recursive
 	 )
 	)
 '

 test_expect_success 'submodule update clone shallow submodule' '
 	git clone cloned super3 &&
 	pwd=$(pwd)
 	(cd super3 &&
 	 sed -e "s#url = ../#url = file://$pwd/#" <.gitmodules >.gitmodules.tmp &&
 	 mv -f .gitmodules.tmp .gitmodules &&
 	 git submodule update --init --depth=3
 	 (cd submodule &&
 	  test 1 = $(git log --oneline | wc -l)
 	 )
 )
 '

 test_expect_success 'submodule update --recursive drops module name before recursing' '
 	(cd super2 &&
 	 (cd deeper/submodule/subsubmodule &&
 	  git checkout HEAD^
 	 ) &&
 	 git submodule update --recursive deeper/submodule >actual &&
 	 test_i18ngrep "Submodule path .deeper/submodule/subsubmodule.: checked out" actual
 	)
 '
 test_done
	#!/bin/sh
	#
	# Copyright (c) 2009 Red Hat, Inc.
	#

	test_description='Test updating submodules

	This test verifies that "git submodule update" detaches the HEAD of the
	submodule and "git submodule update --rebase/--merge" does not detach the HEAD.
	'

	. ./test-lib.sh


	compare_head()
	{
	sha_master=`git rev-list --max-count=1 master`
	sha_head=`git rev-list --max-count=1 HEAD`

	test "$sha_master" = "$sha_head"
	}


	test_expect_success 'setup a submodule tree' '
	echo file > file &&
	git add file &&
	test_tick &&
	git commit -m upstream &&
	git clone . super &&
	git clone super submodule &&
	git clone super rebasing &&
	git clone super merging &&
	git clone super none &&
	(cd super &&
	git submodule add ../submodule submodule &&
	test_tick &&
	git commit -m "submodule" &&
	git submodule init submodule
	) &&
	(cd submodule &&
	echo "line2" > file &&
	git add file &&
	git commit -m "Commit 2"
	) &&
	(cd super &&
	(cd submodule &&
	git pull --rebase origin
	) &&
	git add submodule &&
	git commit -m "submodule update"
	) &&
	(cd super &&
	git submodule add ../rebasing rebasing &&
	test_tick &&
	git commit -m "rebasing"
	) &&
	(cd super &&
	git submodule add ../merging merging &&
	test_tick &&
	git commit -m "rebasing"
	) &&
	(cd super &&
	git submodule add ../none none &&
	test_tick &&
	git commit -m "none"
	)
	'

	test_expect_success 'submodule update detaching the HEAD ' '
	(cd super/submodule &&
	git reset --hard HEAD~1
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update submodule &&
	cd submodule &&
	! compare_head
	)
	'

	test_expect_success 'submodule update from subdirectory' '
	(cd super/submodule &&
	git reset --hard HEAD~1
	) &&
	mkdir super/sub &&
	(cd super/sub &&
	(cd ../submodule &&
	compare_head
	) &&
	git submodule update ../submodule &&
	cd ../submodule &&
	! compare_head
	)
	'

	apos="'";
	test_expect_success 'submodule update does not fetch already present commits' '
	(cd submodule &&
	echo line3 >> file &&
	git add file &&
	test_tick &&
	git commit -m "upstream line3"
	) &&
	(cd super/submodule &&
	head=$(git rev-parse --verify HEAD) &&
	echo "Submodule path ${apos}submodule$apos: checked out $apos$head$apos" > ../../expected &&
	git reset --hard HEAD~1
	) &&
	(cd super &&
	git submodule update > ../actual 2> ../actual.err
	) &&
	test_i18ncmp expected actual &&
	! test -s actual.err
	'

	test_expect_success 'submodule update should fail due to local changes' '
	(cd super/submodule &&
	git reset --hard HEAD~1 &&
	echo "local change" > file
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	test_must_fail git submodule update submodule
	)
	'
	test_expect_success 'submodule update should throw away changes with --force ' '
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update --force submodule &&
	cd submodule &&
	! compare_head
	)
	'

	test_expect_success 'submodule update --force forcibly checks out submodules' '
	(cd super &&
	(cd submodule &&
	rm -f file
	) &&
	git submodule update --force submodule &&
	(cd submodule &&
	test "$(git status -s file)" = ""
	)
	)
	'

	test_expect_success 'submodule update --remote should fetch upstream changes' '
	(cd submodule &&
	echo line4 >> file &&
	git add file &&
	test_tick &&
	git commit -m "upstream line4"
	) &&
	(cd super &&
	git submodule update --remote --force submodule &&
	cd submodule &&
	test "$(git log -1 --oneline)" = "$(GIT_DIR=../../submodule/.git git log -1 --oneline)"
	)
	'

	test_expect_success 'local config should override .gitmodules branch' '
	(cd submodule &&
	git checkout -b test-branch &&
	echo line5 >> file &&
	git add file &&
	test_tick &&
	git commit -m "upstream line5" &&
	git checkout master
	) &&
	(cd super &&
	git config submodule.submodule.branch test-branch &&
	git submodule update --remote --force submodule &&
	cd submodule &&
	test "$(git log -1 --oneline)" = "$(GIT_DIR=../../submodule/.git git log -1 --oneline test-branch)"
	)
	'

	test_expect_success 'submodule update --rebase staying on master' '
	(cd super/submodule &&
	git checkout master
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update --rebase submodule &&
	cd submodule &&
	compare_head
	)
	'

	test_expect_success 'submodule update --merge staying on master' '
	(cd super/submodule &&
	git reset --hard HEAD~1
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update --merge submodule &&
	cd submodule &&
	compare_head
	)
	'

	test_expect_success 'submodule update - rebase in .git/config' '
	(cd super &&
	git config submodule.submodule.update rebase
	) &&
	(cd super/submodule &&
	git reset --hard HEAD~1
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update submodule &&
	cd submodule &&
	compare_head
	)
	'

	test_expect_success 'submodule update - checkout in .git/config but --rebase given' '
	(cd super &&
	git config submodule.submodule.update checkout
	) &&
	(cd super/submodule &&
	git reset --hard HEAD~1
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update --rebase submodule &&
	cd submodule &&
	compare_head
	)
	'

	test_expect_success 'submodule update - merge in .git/config' '
	(cd super &&
	git config submodule.submodule.update merge
	) &&
	(cd super/submodule &&
	git reset --hard HEAD~1
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update submodule &&
	cd submodule &&
	compare_head
	)
	'

	test_expect_success 'submodule update - checkout in .git/config but --merge given' '
	(cd super &&
	git config submodule.submodule.update checkout
	) &&
	(cd super/submodule &&
	git reset --hard HEAD~1
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update --merge submodule &&
	cd submodule &&
	compare_head
	)
	'

	test_expect_success 'submodule update - checkout in .git/config' '
	(cd super &&
	git config submodule.submodule.update checkout
	) &&
	(cd super/submodule &&
	git reset --hard HEAD^
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update submodule &&
	cd submodule &&
	! compare_head
	)
	'

	test_expect_success 'submodule update - command in .git/config' '
	(cd super &&
	git config submodule.submodule.update "!git checkout"
	) &&
	(cd super/submodule &&
	git reset --hard HEAD^
	) &&
	(cd super &&
	(cd submodule &&
	compare_head
	) &&
	git submodule update submodule &&
	cd submodule &&
	! compare_head
	)
	'

	test_expect_success 'submodule update - command in .git/config catches failure' '
	(cd super &&
	git config submodule.submodule.update "!false"
	) &&
	(cd super/submodule &&
	git reset --hard HEAD^
	) &&
	(cd super &&
	test_must_fail git submodule update submodule
	)
	'

	test_expect_success 'submodule init does not copy command into .git/config' '
	(cd super &&
	H=$(git ls-files -s submodule \| cut -d" " -f2) &&
	mkdir submodule1 &&
	git update-index --add --cacheinfo 160000 $H submodule1 &&
	git config -f .gitmodules submodule.submodule1.path submodule1 &&
	git config -f .gitmodules submodule.submodule1.url ../submodule &&
	git config -f .gitmodules submodule.submodule1.update !false &&
	git submodule init submodule1 &&
	echo "none" >expect &&
	git config submodule.submodule1.update >actual &&
	test_cmp expect actual
	)
	'

	test_expect_success 'submodule init picks up rebase' '
	(cd super &&
	git config -f .gitmodules submodule.rebasing.update rebase &&
	git submodule init rebasing &&
	test "rebase" = "$(git config submodule.rebasing.update)"
	)
	'

	test_expect_success 'submodule init picks up merge' '
	(cd super &&
	git config -f .gitmodules submodule.merging.update merge &&
	git submodule init merging &&
	test "merge" = "$(git config submodule.merging.update)"
	)
	'

	test_expect_success 'submodule update --merge - ignores --merge for new submodules' '
	(cd super &&
	rm -rf submodule &&
	git submodule update submodule &&
	git status -s submodule >expect &&
	rm -rf submodule &&
	git submodule update --merge submodule &&
	git status -s submodule >actual &&
	test_cmp expect actual
	)
	'

	test_expect_success 'submodule update --rebase - ignores --rebase for new submodules' '
	(cd super &&
	rm -rf submodule &&
	git submodule update submodule &&
	git status -s submodule >expect &&
	rm -rf submodule &&
	git submodule update --rebase submodule &&
	git status -s submodule >actual &&
	test_cmp expect actual
	)
	'

	test_expect_success 'submodule update ignores update=merge config for new submodules' '
	(cd super &&
	rm -rf submodule &&
	git submodule update submodule &&
	git status -s submodule >expect &&
	rm -rf submodule &&
	git config submodule.submodule.update merge &&
	git submodule update submodule &&
	git status -s submodule >actual &&
	git config --unset submodule.submodule.update &&
	test_cmp expect actual
	)
	'

	test_expect_success 'submodule update ignores update=rebase config for new submodules' '
	(cd super &&
	rm -rf submodule &&
	git submodule update submodule &&
	git status -s submodule >expect &&
	rm -rf submodule &&
	git config submodule.submodule.update rebase &&
	git submodule update submodule &&
	git status -s submodule >actual &&
	git config --unset submodule.submodule.update &&
	test_cmp expect actual
	)
	'

	test_expect_success 'submodule init picks up update=none' '
	(cd super &&
	git config -f .gitmodules submodule.none.update none &&
	git submodule init none &&
	test "none" = "$(git config submodule.none.update)"
	)
	'

	test_expect_success 'submodule update - update=none in .git/config' '
	(cd super &&
	git config submodule.submodule.update none &&
	(cd submodule &&
	git checkout master &&
	compare_head
	) &&
	git diff --raw \| grep " submodule" &&
	git submodule update &&
	git diff --raw \| grep " submodule" &&
	(cd submodule &&
	compare_head
	) &&
	git config --unset submodule.submodule.update &&
	git submodule update submodule
	)
	'

	test_expect_success 'submodule update - update=none in .git/config but --checkout given' '
	(cd super &&
	git config submodule.submodule.update none &&
	(cd submodule &&
	git checkout master &&
	compare_head
	) &&
	git diff --raw \| grep " submodule" &&
	git submodule update --checkout &&
	test_must_fail git diff --raw \\| grep " submodule" &&
	(cd submodule &&
	test_must_fail compare_head
	) &&
	git config --unset submodule.submodule.update
	)
	'

	test_expect_success 'submodule update --init skips submodule with update=none' '
	(cd super &&
	git add .gitmodules &&
	git commit -m ".gitmodules"
	) &&
	git clone super cloned &&
	(cd cloned &&
	git submodule update --init &&
	test -e submodule/.git &&
	test_must_fail test -e none/.git
	)
	'

	test_expect_success 'submodule update continues after checkout error' '
	(cd super &&
	git reset --hard HEAD &&
	git submodule add ../submodule submodule2 &&
	git submodule init &&
	git commit -am "new_submodule" &&
	(cd submodule2 &&
	git rev-parse --verify HEAD >../expect
	) &&
	(cd submodule &&
	test_commit "update_submodule" file
	) &&
	(cd submodule2 &&
	test_commit "update_submodule2" file
	) &&
	git add submodule &&
	git add submodule2 &&
	git commit -m "two_new_submodule_commits" &&
	(cd submodule &&
	echo "" > file
	) &&
	git checkout HEAD^ &&
	test_must_fail git submodule update &&
	(cd submodule2 &&
	git rev-parse --verify HEAD >../actual
	) &&
	test_cmp expect actual
	)
	'
	test_expect_success 'submodule update continues after recursive checkout error' '
	(cd super &&
	git reset --hard HEAD &&
	git checkout master &&
	git submodule update &&
	(cd submodule &&
	git submodule add ../submodule subsubmodule &&
	git submodule init &&
	git commit -m "new_subsubmodule"
	) &&
	git add submodule &&
	git commit -m "update_submodule" &&
	(cd submodule &&
	(cd subsubmodule &&
	test_commit "update_subsubmodule" file
	) &&
	git add subsubmodule &&
	test_commit "update_submodule_again" file &&
	(cd subsubmodule &&
	test_commit "update_subsubmodule_again" file
	) &&
	test_commit "update_submodule_again_again" file
	) &&
	(cd submodule2 &&
	git rev-parse --verify HEAD >../expect &&
	test_commit "update_submodule2_again" file
	) &&
	git add submodule &&
	git add submodule2 &&
	git commit -m "new_commits" &&
	git checkout HEAD^ &&
	(cd submodule &&
	git checkout HEAD^ &&
	(cd subsubmodule &&
	echo "" > file
	)
	) &&
	test_must_fail git submodule update --recursive &&
	(cd submodule2 &&
	git rev-parse --verify HEAD >../actual
	) &&
	test_cmp expect actual
	)
	'

	test_expect_success 'submodule update exit immediately in case of merge conflict' '
	(cd super &&
	git checkout master &&
	git reset --hard HEAD &&
	(cd submodule &&
	(cd subsubmodule &&
	git reset --hard HEAD
	)
	) &&
	git submodule update --recursive &&
	(cd submodule &&
	test_commit "update_submodule_2" file
	) &&
	(cd submodule2 &&
	test_commit "update_submodule2_2" file
	) &&
	git add submodule &&
	git add submodule2 &&
	git commit -m "two_new_submodule_commits" &&
	(cd submodule &&
	git checkout master &&
	test_commit "conflict" file &&
	echo "conflict" > file
	) &&
	git checkout HEAD^ &&
	(cd submodule2 &&
	git rev-parse --verify HEAD >../expect
	) &&
	git config submodule.submodule.update merge &&
	test_must_fail git submodule update &&
	(cd submodule2 &&
	git rev-parse --verify HEAD >../actual
	) &&
	test_cmp expect actual
	)
	'

	test_expect_success 'submodule update exit immediately after recursive rebase error' '
	(cd super &&
	git checkout master &&
	git reset --hard HEAD &&
	(cd submodule &&
	git reset --hard HEAD &&
	git submodule update --recursive
	) &&
	(cd submodule &&
	test_commit "update_submodule_3" file
	) &&
	(cd submodule2 &&
	test_commit "update_submodule2_3" file
	) &&
	git add submodule &&
	git add submodule2 &&
	git commit -m "two_new_submodule_commits" &&
	(cd submodule &&
	git checkout master &&
	test_commit "conflict2" file &&
	echo "conflict" > file
	) &&
	git checkout HEAD^ &&
	(cd submodule2 &&
	git rev-parse --verify HEAD >../expect
	) &&
	git config submodule.submodule.update rebase &&
	test_must_fail git submodule update &&
	(cd submodule2 &&
	git rev-parse --verify HEAD >../actual
	) &&
	test_cmp expect actual
	)
	'

	test_expect_success 'add different submodules to the same path' '
	(cd super &&
	git submodule add ../submodule s1 &&
	test_must_fail git submodule add ../merging s1
	)
	'

	test_expect_success 'submodule add places git-dir in superprojects git-dir' '
	(cd super &&
	mkdir deeper &&
	git submodule add ../submodule deeper/submodule &&
	(cd deeper/submodule &&
	git log > ../../expected
	) &&
	(cd .git/modules/deeper/submodule &&
	git log > ../../../../actual
	) &&
	test_cmp actual expected
	)
	'

	test_expect_success 'submodule update places git-dir in superprojects git-dir' '
	(cd super &&
	git commit -m "added submodule"
	) &&
	git clone super super2 &&
	(cd super2 &&
	git submodule init deeper/submodule &&
	git submodule update &&
	(cd deeper/submodule &&
	git log > ../../expected
	) &&
	(cd .git/modules/deeper/submodule &&
	git log > ../../../../actual
	) &&
	test_cmp actual expected
	)
	'

	test_expect_success 'submodule add places git-dir in superprojects git-dir recursive' '
	(cd super2 &&
	(cd deeper/submodule &&
	git submodule add ../submodule subsubmodule &&
	(cd subsubmodule &&
	git log > ../../../expected
	) &&
	git commit -m "added subsubmodule" &&
	git push origin :
	) &&
	(cd .git/modules/deeper/submodule/modules/subsubmodule &&
	git log > ../../../../../actual
	) &&
	git add deeper/submodule &&
	git commit -m "update submodule" &&
	git push origin : &&
	test_cmp actual expected
	)
	'

	test_expect_success 'submodule update places git-dir in superprojects git-dir recursive' '
	mkdir super_update_r &&
	(cd super_update_r &&
	git init --bare
	) &&
	mkdir subsuper_update_r &&
	(cd subsuper_update_r &&
	git init --bare
	) &&
	mkdir subsubsuper_update_r &&
	(cd subsubsuper_update_r &&
	git init --bare
	) &&
	git clone subsubsuper_update_r subsubsuper_update_r2 &&
	(cd subsubsuper_update_r2 &&
	test_commit "update_subsubsuper" file &&
	git push origin master
	) &&
	git clone subsuper_update_r subsuper_update_r2 &&
	(cd subsuper_update_r2 &&
	test_commit "update_subsuper" file &&
	git submodule add ../subsubsuper_update_r subsubmodule &&
	git commit -am "subsubmodule" &&
	git push origin master
	) &&
	git clone super_update_r super_update_r2 &&
	(cd super_update_r2 &&
	test_commit "update_super" file &&
	git submodule add ../subsuper_update_r submodule &&
	git commit -am "submodule" &&
	git push origin master
	) &&
	rm -rf super_update_r2 &&
	git clone super_update_r super_update_r2 &&
	(cd super_update_r2 &&
	git submodule update --init --recursive >actual &&
	test_i18ngrep "Submodule path .submodule/subsubmodule.: checked out" actual &&
	(cd submodule/subsubmodule &&
	git log > ../../expected
	) &&
	(cd .git/modules/submodule/modules/subsubmodule
	git log > ../../../../../actual
	)
	test_cmp actual expected
	)
	'

	test_expect_success 'submodule add properly re-creates deeper level submodules' '
	(cd super &&
	git reset --hard master &&
	rm -rf deeper/ &&
	git submodule add --force ../submodule deeper/submodule
	)
	'

	test_expect_success 'submodule update properly revives a moved submodule' '
	(cd super &&
	H=$(git rev-parse --short HEAD) &&
	git commit -am "pre move" &&
	H2=$(git rev-parse --short HEAD) &&
	git status \| sed "s/$H/XXX/" >expect &&
	H=$(cd submodule2; git rev-parse HEAD) &&
	git rm --cached submodule2 &&
	rm -rf submodule2 &&
	mkdir -p "moved/sub module" &&
	git update-index --add --cacheinfo 160000 $H "moved/sub module" &&
	git config -f .gitmodules submodule.submodule2.path "moved/sub module"
	git commit -am "post move" &&
	git submodule update &&
	git status \| sed "s/$H2/XXX/" >actual &&
	test_cmp expect actual
	)
	'

	test_expect_success SYMLINKS 'submodule update can handle symbolic links in pwd' '
	mkdir -p linked/dir &&
	ln -s linked/dir linkto &&
	(cd linkto &&
	git clone "$TRASH_DIRECTORY"/super_update_r2 super &&
	(cd super &&
	git submodule update --init --recursive
	)
	)
	'

	test_expect_success 'submodule update clone shallow submodule' '
	git clone cloned super3 &&
	pwd=$(pwd)
	(cd super3 &&
	sed -e "s#url = ../#url = file://$pwd/#" <.gitmodules >.gitmodules.tmp &&
	mv -f .gitmodules.tmp .gitmodules &&
	git submodule update --init --depth=3
	(cd submodule &&
	test 1 = $(git log --oneline \| wc -l)
	)
	)
	'

	test_expect_success 'submodule update --recursive drops module name before recursing' '
	(cd super2 &&
	(cd deeper/submodule/subsubmodule &&
	git checkout HEAD^
	) &&
	git submodule update --recursive deeper/submodule >actual &&
	test_i18ngrep "Submodule path .deeper/submodule/subsubmodule.: checked out" actual
	)
	'
	test_done