1034 lines
		
	
	
	
		
			34 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable file
		
	
	
	
	
			
		
		
	
	
			1034 lines
		
	
	
	
		
			34 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable file
		
	
	
	
	
#!/bin/sh
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						|
#
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# Copyright (c) 2012 Avery Pennaraum
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# Copyright (c) 2015 Alexey Shumkin
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#
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test_description='Basic porcelain support for subtrees
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This test verifies the basic operation of the add, pull, merge
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and split subcommands of git subtree.
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'
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TEST_DIRECTORY=$(pwd)/../../../t
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export TEST_DIRECTORY
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. ../../../t/test-lib.sh
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subtree_test_create_repo()
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{
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	test_create_repo "$1" &&
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	(
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		cd "$1" &&
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		git config log.date relative
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	)
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}
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create()
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{
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	echo "$1" >"$1" &&
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	git add "$1"
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}
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check_equal()
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{
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	test_debug 'echo'
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	test_debug "echo \"check a:\" \"{$1}\""
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	test_debug "echo \"      b:\" \"{$2}\""
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	if [ "$1" = "$2" ]; then
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		return 0
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	else
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		return 1
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	fi
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}
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undo()
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{
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	git reset --hard HEAD~
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}
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# Make sure no patch changes more than one file.
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# The original set of commits changed only one file each.
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# A multi-file change would imply that we pruned commits
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# too aggressively.
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join_commits()
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{
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	commit=
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	all=
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	while read x y; do
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		if [ -z "$x" ]; then
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			continue
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		elif [ "$x" = "commit:" ]; then
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			if [ -n "$commit" ]; then
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				echo "$commit $all"
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				all=
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			fi
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			commit="$y"
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		else
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			all="$all $y"
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		fi
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	done
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	echo "$commit $all"
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}
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test_create_commit() (
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	repo=$1 &&
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	commit=$2 &&
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	cd "$repo" &&
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	mkdir -p "$(dirname "$commit")" \
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	|| error "Could not create directory for commit"
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	echo "$commit" >"$commit" &&
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	git add "$commit" || error "Could not add commit"
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	git commit -m "$commit" || error "Could not commit"
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)
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last_commit_message()
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{
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	git log --pretty=format:%s -1
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}
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subtree_test_count=0
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next_test() {
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	subtree_test_count=$(($subtree_test_count+1))
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}
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#
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# Tests for 'git subtree add'
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#
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next_test
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test_expect_success 'no merge from non-existent subtree' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		test_must_fail git subtree merge --prefix="sub dir" FETCH_HEAD
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	)
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'
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next_test
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test_expect_success 'no pull from non-existent subtree' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		test_must_fail git subtree pull --prefix="sub dir" ./"sub proj" master
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	)'
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next_test
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test_expect_success 'add subproj as subtree into sub dir/ with --prefix' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree add --prefix="sub dir" FETCH_HEAD &&
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		check_equal "$(last_commit_message)" "Add '\''sub dir/'\'' from commit '\''$(git rev-parse FETCH_HEAD)'\''"
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	)
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'
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next_test
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test_expect_success 'add subproj as subtree into sub dir/ with --prefix and --message' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree add --prefix="sub dir" --message="Added subproject" FETCH_HEAD &&
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		check_equal "$(last_commit_message)" "Added subproject"
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	)
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'
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next_test
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test_expect_success 'add subproj as subtree into sub dir/ with --prefix as -P and --message as -m' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree add -P "sub dir" -m "Added subproject" FETCH_HEAD &&
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		check_equal "$(last_commit_message)" "Added subproject"
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	)
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'
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next_test
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test_expect_success 'add subproj as subtree into sub dir/ with --squash and --prefix and --message' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree add --prefix="sub dir" --message="Added subproject with squash" --squash FETCH_HEAD &&
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		check_equal "$(last_commit_message)" "Added subproject with squash"
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	)
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'
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#
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# Tests for 'git subtree merge'
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#
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next_test
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test_expect_success 'merge new subproj history into sub dir/ with --prefix' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree add --prefix="sub dir" FETCH_HEAD
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	) &&
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	test_create_commit "$subtree_test_count/sub proj" sub2 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree merge --prefix="sub dir" FETCH_HEAD &&
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		check_equal "$(last_commit_message)" "Merge commit '\''$(git rev-parse FETCH_HEAD)'\''"
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	)
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'
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next_test
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test_expect_success 'merge new subproj history into sub dir/ with --prefix and --message' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree add --prefix="sub dir" FETCH_HEAD
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	) &&
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	test_create_commit "$subtree_test_count/sub proj" sub2 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree merge --prefix="sub dir" --message="Merged changes from subproject" FETCH_HEAD &&
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		check_equal "$(last_commit_message)" "Merged changes from subproject"
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	)
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'
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next_test
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test_expect_success 'merge new subproj history into sub dir/ with --squash and --prefix and --message' '
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	subtree_test_create_repo "$subtree_test_count" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree add --prefix="sub dir" FETCH_HEAD
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	) &&
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	test_create_commit "$subtree_test_count/sub proj" sub2 &&
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree merge --prefix="sub dir" --message="Merged changes from subproject using squash" --squash FETCH_HEAD &&
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		check_equal "$(last_commit_message)" "Merged changes from subproject using squash"
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	)
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'
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next_test
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test_expect_success 'merge the added subproj again, should do nothing' '
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	subtree_test_create_repo "$subtree_test_count" &&
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	subtree_test_create_repo "$subtree_test_count/sub proj" &&
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	test_create_commit "$subtree_test_count" main1 &&
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
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	(
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		cd "$subtree_test_count" &&
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		git fetch ./"sub proj" master &&
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		git subtree add --prefix="sub dir" FETCH_HEAD &&
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		# this shouldn not actually do anything, since FETCH_HEAD
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		# is already a parent
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		result=$(git merge -s ours -m "merge -s -ours" FETCH_HEAD) &&
 | 
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		check_equal "${result}" "Already up to date."
 | 
						|
	)
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'
 | 
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 | 
						|
next_test
 | 
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test_expect_success 'merge new subproj history into subdir/ with a slash appended to the argument of --prefix' '
 | 
						|
	test_create_repo "$test_count" &&
 | 
						|
	test_create_repo "$test_count/subproj" &&
 | 
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	test_create_commit "$test_count" main1 &&
 | 
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	test_create_commit "$test_count/subproj" sub1 &&
 | 
						|
	(
 | 
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		cd "$test_count" &&
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		git fetch ./subproj master &&
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		git subtree add --prefix=subdir/ FETCH_HEAD
 | 
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	) &&
 | 
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	test_create_commit "$test_count/subproj" sub2 &&
 | 
						|
	(
 | 
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		cd "$test_count" &&
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		git fetch ./subproj master &&
 | 
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		git subtree merge --prefix=subdir/ FETCH_HEAD &&
 | 
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		check_equal "$(last_commit_message)" "Merge commit '\''$(git rev-parse FETCH_HEAD)'\''"
 | 
						|
	)
 | 
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'
 | 
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 | 
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#
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# Tests for 'git subtree split'
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#
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next_test
 | 
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test_expect_success 'split requires option --prefix' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
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	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		echo "You must provide the --prefix option." > expected &&
 | 
						|
		test_must_fail git subtree split > actual 2>&1 &&
 | 
						|
		test_debug "printf '"expected: "'" &&
 | 
						|
		test_debug "cat expected" &&
 | 
						|
		test_debug "printf '"actual: "'" &&
 | 
						|
		test_debug "cat actual" &&
 | 
						|
		test_cmp expected actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'split requires path given by option --prefix must exist' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		echo "'\''non-existent-directory'\'' does not exist; use '\''git subtree add'\''" > expected &&
 | 
						|
		test_must_fail git subtree split --prefix=non-existent-directory > actual 2>&1 &&
 | 
						|
		test_debug "printf '"expected: "'" &&
 | 
						|
		test_debug "cat expected" &&
 | 
						|
		test_debug "printf '"actual: "'" &&
 | 
						|
		test_debug "cat actual" &&
 | 
						|
		test_cmp expected actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'split sub dir/ with --rejoin' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		split_hash=$(git subtree split --prefix="sub dir" --annotate="*") &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --rejoin &&
 | 
						|
		check_equal "$(last_commit_message)" "Split '\''sub dir/'\'' into commit '\''$split_hash'\''"
 | 
						|
	)
 | 
						|
 '
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'split sub dir/ with --rejoin from scratch' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		mkdir "sub dir" &&
 | 
						|
		echo file >"sub dir"/file &&
 | 
						|
		git add "sub dir/file" &&
 | 
						|
		git commit -m"sub dir file" &&
 | 
						|
		split_hash=$(git subtree split --prefix="sub dir" --rejoin) &&
 | 
						|
		git subtree split --prefix="sub dir" --rejoin &&
 | 
						|
		check_equal "$(last_commit_message)" "Split '\''sub dir/'\'' into commit '\''$split_hash'\''"
 | 
						|
	)
 | 
						|
 '
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'split sub dir/ with --rejoin and --message' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		git subtree split --prefix="sub dir" --message="Split & rejoin" --annotate="*" --rejoin &&
 | 
						|
		check_equal "$(last_commit_message)" "Split & rejoin"
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'split "sub dir"/ with --branch' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		split_hash=$(git subtree split --prefix="sub dir" --annotate="*") &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br &&
 | 
						|
		check_equal "$(git rev-parse subproj-br)" "$split_hash"
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'check hash of split' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		split_hash=$(git subtree split --prefix="sub dir" --annotate="*") &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br &&
 | 
						|
		check_equal "$(git rev-parse subproj-br)" "$split_hash" &&
 | 
						|
		# Check hash of split
 | 
						|
		new_hash=$(git rev-parse subproj-br^2) &&
 | 
						|
		(
 | 
						|
			cd ./"sub proj" &&
 | 
						|
			subdir_hash=$(git rev-parse HEAD) &&
 | 
						|
			check_equal ''"$new_hash"'' "$subdir_hash"
 | 
						|
		)
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'split "sub dir"/ with --branch for an existing branch' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git branch subproj-br FETCH_HEAD &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		split_hash=$(git subtree split --prefix="sub dir" --annotate="*") &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br &&
 | 
						|
		check_equal "$(git rev-parse subproj-br)" "$split_hash"
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'split "sub dir"/ with --branch for an incompatible branch' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git branch init HEAD &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		test_must_fail git subtree split --prefix="sub dir" --branch init
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
#
 | 
						|
# Validity checking
 | 
						|
#
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'make sure exactly the right set of files ends up in the subproj' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub3 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub3 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD &&
 | 
						|
 | 
						|
		test_write_lines main-sub1 main-sub2 main-sub3 main-sub4 \
 | 
						|
			sub1 sub2 sub3 sub4 >expect &&
 | 
						|
		git ls-files >actual &&
 | 
						|
		test_cmp expect actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'make sure the subproj *only* contains commits that affect the "sub dir"' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub3 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub3 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD &&
 | 
						|
 | 
						|
		test_write_lines main-sub1 main-sub2 main-sub3 main-sub4 \
 | 
						|
			sub1 sub2 sub3 sub4 >expect &&
 | 
						|
		git log --name-only --pretty=format:"" >log &&
 | 
						|
		sort <log | sed "/^\$/ d" >actual &&
 | 
						|
		test_cmp expect actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'make sure exactly the right set of files ends up in the mainline' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub3 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub3 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree pull --prefix="sub dir" ./"sub proj" master &&
 | 
						|
 | 
						|
		test_write_lines main1 main2 >chkm &&
 | 
						|
		test_write_lines main-sub1 main-sub2 main-sub3 main-sub4 >chkms &&
 | 
						|
		sed "s,^,sub dir/," chkms >chkms_sub &&
 | 
						|
		test_write_lines sub1 sub2 sub3 sub4 >chks &&
 | 
						|
		sed "s,^,sub dir/," chks >chks_sub &&
 | 
						|
 | 
						|
		cat chkm chkms_sub chks_sub >expect &&
 | 
						|
		git ls-files >actual &&
 | 
						|
		test_cmp expect actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'make sure each filename changed exactly once in the entire history' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git config log.date relative &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub3 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub3 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree pull --prefix="sub dir" ./"sub proj" master &&
 | 
						|
 | 
						|
		test_write_lines main1 main2 >chkm &&
 | 
						|
		test_write_lines sub1 sub2 sub3 sub4 >chks &&
 | 
						|
		test_write_lines main-sub1 main-sub2 main-sub3 main-sub4 >chkms &&
 | 
						|
		sed "s,^,sub dir/," chkms >chkms_sub &&
 | 
						|
 | 
						|
		# main-sub?? and /"sub dir"/main-sub?? both change, because those are the
 | 
						|
		# changes that were split into their own history.  And "sub dir"/sub?? never
 | 
						|
		# change, since they were *only* changed in the subtree branch.
 | 
						|
		git log --name-only --pretty=format:"" >log &&
 | 
						|
		sort <log >sorted-log &&
 | 
						|
		sed "/^$/ d" sorted-log >actual &&
 | 
						|
 | 
						|
		cat chkms chkm chks chkms_sub >expect-unsorted &&
 | 
						|
		sort expect-unsorted >expect &&
 | 
						|
		test_cmp expect actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'make sure the --rejoin commits never make it into subproj' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub3 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub3 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree pull --prefix="sub dir" ./"sub proj" master &&
 | 
						|
		check_equal "$(git log --pretty=format:"%s" HEAD^2 | grep -i split)" ""
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'make sure no "git subtree" tagged commits make it into subproj' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub3 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub3 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		 git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub4 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count/sub proj" &&
 | 
						|
		git fetch .. subproj-br &&
 | 
						|
		git merge FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree pull --prefix="sub dir" ./"sub proj" master &&
 | 
						|
 | 
						|
		# They are meaningless to subproj since one side of the merge refers to the mainline
 | 
						|
		check_equal "$(git log --pretty=format:"%s%n%b" HEAD^2 | grep "git-subtree.*:")" ""
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
#
 | 
						|
# A new set of tests
 | 
						|
#
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'make sure "git subtree split" find the correct parent' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git branch subproj-ref FETCH_HEAD &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --branch subproj-br &&
 | 
						|
 | 
						|
		# at this point, the new commit parent should be subproj-ref, if it is
 | 
						|
		# not, something went wrong (the "newparent" of "master~" commit should
 | 
						|
		# have been sub2, but it was not, because its cache was not set to
 | 
						|
		# itself)
 | 
						|
		check_equal "$(git log --pretty=format:%P -1 subproj-br)" "$(git rev-parse subproj-ref)"
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'split a new subtree without --onto option' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --branch subproj-br
 | 
						|
	) &&
 | 
						|
	mkdir "$subtree_test_count"/"sub dir2" &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir2"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
 | 
						|
		# also test that we still can split out an entirely new subtree
 | 
						|
		# if the parent of the first commit in the tree is not empty,
 | 
						|
		# then the new subtree has accidentally been attached to something
 | 
						|
		git subtree split --prefix="sub dir2" --branch subproj2-br &&
 | 
						|
		check_equal "$(git log --pretty=format:%P -1 subproj2-br)" ""
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'verify one file change per commit' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git branch sub1 FETCH_HEAD &&
 | 
						|
		git subtree add --prefix="sub dir" sub1
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir" --branch subproj-br
 | 
						|
	) &&
 | 
						|
	mkdir "$subtree_test_count"/"sub dir2" &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir2"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git subtree split --prefix="sub dir2" --branch subproj2-br &&
 | 
						|
 | 
						|
		x= &&
 | 
						|
		git log --pretty=format:"commit: %H" | join_commits |
 | 
						|
		(
 | 
						|
			while read commit a b; do
 | 
						|
				test_debug "echo Verifying commit $commit"
 | 
						|
				test_debug "echo a: $a"
 | 
						|
				test_debug "echo b: $b"
 | 
						|
				check_equal "$b" ""
 | 
						|
				x=1
 | 
						|
			done
 | 
						|
			check_equal "$x" 1
 | 
						|
		)
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'push split to subproj' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	subtree_test_create_repo "$subtree_test_count/sub proj" &&
 | 
						|
	test_create_commit "$subtree_test_count" main1 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub1 &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree add --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub1 &&
 | 
						|
	test_create_commit "$subtree_test_count" main2 &&
 | 
						|
	test_create_commit "$subtree_test_count/sub proj" sub2 &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub2 &&
 | 
						|
	(
 | 
						|
		cd $subtree_test_count/"sub proj" &&
 | 
						|
                git branch sub-branch-1 &&
 | 
						|
                cd .. &&
 | 
						|
		git fetch ./"sub proj" master &&
 | 
						|
		git subtree merge --prefix="sub dir" FETCH_HEAD
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" "sub dir"/main-sub3 &&
 | 
						|
        (
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
	        git subtree push ./"sub proj" --prefix "sub dir" sub-branch-1 &&
 | 
						|
                cd ./"sub proj" &&
 | 
						|
                git checkout sub-branch-1 &&
 | 
						|
         	check_equal "$(last_commit_message)" "sub dir/main-sub3"
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
#
 | 
						|
# This test covers 2 cases in subtree split copy_or_skip code
 | 
						|
# 1) Merges where one parent is a superset of the changes of the other
 | 
						|
#    parent regarding changes to the subtree, in this case the merge
 | 
						|
#    commit should be copied
 | 
						|
# 2) Merges where only one parent operate on the subtree, and the merge
 | 
						|
#    commit should be skipped
 | 
						|
#
 | 
						|
# (1) is checked by ensuring subtree_tip is a descendent of subtree_branch
 | 
						|
# (2) should have a check added (not_a_subtree_change shouldn't be present
 | 
						|
#     on the produced subtree)
 | 
						|
#
 | 
						|
# Other related cases which are not tested (or currently handled correctly)
 | 
						|
# - Case (1) where there are more than 2 parents, it will sometimes correctly copy
 | 
						|
#   the merge, and sometimes not
 | 
						|
# - Merge commit where both parents have same tree as the merge, currently
 | 
						|
#   will always be skipped, even if they reached that state via different
 | 
						|
#   set of commits.
 | 
						|
#
 | 
						|
 | 
						|
next_test
 | 
						|
test_expect_success 'subtree descendant check' '
 | 
						|
	subtree_test_create_repo "$subtree_test_count" &&
 | 
						|
	test_create_commit "$subtree_test_count" folder_subtree/a &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git branch branch
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" folder_subtree/0 &&
 | 
						|
	test_create_commit "$subtree_test_count" folder_subtree/b &&
 | 
						|
	cherry=$(cd "$subtree_test_count"; git rev-parse HEAD) &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git checkout branch
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" commit_on_branch &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git cherry-pick $cherry &&
 | 
						|
		git checkout master &&
 | 
						|
		git merge -m "merge should be kept on subtree" branch &&
 | 
						|
		git branch no_subtree_work_branch
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" folder_subtree/d &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git checkout no_subtree_work_branch
 | 
						|
	) &&
 | 
						|
	test_create_commit "$subtree_test_count" not_a_subtree_change &&
 | 
						|
	(
 | 
						|
		cd "$subtree_test_count" &&
 | 
						|
		git checkout master &&
 | 
						|
		git merge -m "merge should be skipped on subtree" no_subtree_work_branch &&
 | 
						|
 | 
						|
		git subtree split --prefix folder_subtree/ --branch subtree_tip master &&
 | 
						|
		git subtree split --prefix folder_subtree/ --branch subtree_branch branch &&
 | 
						|
		check_equal $(git rev-list --count subtree_tip..subtree_branch) 0
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
test_done
 |