#!/bin/sh

global test_description := ''test separate work tree''
source ./test-lib.sh

test_expect_success 'setup' '
	EMPTY_TREE=$(git write-tree) &&
	EMPTY_BLOB=$(git hash-object -t blob --stdin </dev/null) &&
	CHANGED_BLOB=$(echo changed | git hash-object -t blob --stdin) &&
	EMPTY_BLOB7=$(echo $EMPTY_BLOB | sed "s/\(.......\).*/\1/") &&
	CHANGED_BLOB7=$(echo $CHANGED_BLOB | sed "s/\(.......\).*/\1/") &&

	mkdir -p work/sub/dir &&
	mkdir -p work2 &&
	mv .git repo.git
'

test_expect_success 'setup: helper for testing rev-parse' '
	test_rev_parse() {
		echo $1 >expected.bare &&
		echo $2 >expected.inside-git &&
		echo $3 >expected.inside-worktree &&
		if test $# -ge 4
		then
			echo $4 >expected.prefix
		fi &&

		git rev-parse --is-bare-repository >actual.bare &&
		git rev-parse --is-inside-git-dir >actual.inside-git &&
		git rev-parse --is-inside-work-tree >actual.inside-worktree &&
		if test $# -ge 4
		then
			git rev-parse --show-prefix >actual.prefix
		fi &&

		test_cmp expected.bare actual.bare &&
		test_cmp expected.inside-git actual.inside-git &&
		test_cmp expected.inside-worktree actual.inside-worktree &&
		if test $# -ge 4
		then
			# rev-parse --show-prefix should output
			# a single newline when at the top of the work tree,
			# but we test for that separately.
			test -z "$4" && ! test -s actual.prefix ||
			test_cmp expected.prefix actual.prefix
		fi
	}
'

test_expect_success 'setup: core.worktree = relative path' '
	sane_unset GIT_WORK_TREE &&
	GIT_DIR=repo.git &&
	GIT_CONFIG="$(pwd)"/$GIT_DIR/config &&
	export GIT_DIR GIT_CONFIG &&
	git config core.worktree ../work
'

test_expect_success 'outside' '
	test_rev_parse false false false
'

test_expect_success 'inside work tree' '
	(
		cd work &&
		GIT_DIR=../repo.git &&
		GIT_CONFIG="$(pwd)"/$GIT_DIR/config &&
		test_rev_parse false false true ""
	)
'

test_expect_success 'empty prefix is actually written out' '
	echo >expected &&
	(
		cd work &&
		GIT_DIR=../repo.git &&
		GIT_CONFIG="$(pwd)"/$GIT_DIR/config &&
		git rev-parse --show-prefix >../actual
	) &&
	test_cmp expected actual
'

test_expect_success 'subdir of work tree' '
	(
		cd work/sub/dir &&
		GIT_DIR=../../../repo.git &&
		GIT_CONFIG="$(pwd)"/$GIT_DIR/config &&
		test_rev_parse false false true sub/dir/
	)
'

test_expect_success 'setup: core.worktree = absolute path' '
	sane_unset GIT_WORK_TREE &&
	GIT_DIR=$(pwd)/repo.git &&
	GIT_CONFIG=$GIT_DIR/config &&
	export GIT_DIR GIT_CONFIG &&
	git config core.worktree "$(pwd)/work"
'

test_expect_success 'outside' '
	test_rev_parse false false false &&
	(
		cd work2 &&
		test_rev_parse false false false
	)
'

test_expect_success 'inside work tree' '
	(
		cd work &&
		test_rev_parse false false true ""
	)
'

test_expect_success 'subdir of work tree' '
	(
		cd work/sub/dir &&
		test_rev_parse false false true sub/dir/
	)
'

test_expect_success 'setup: GIT_WORK_TREE=relative (override core.worktree)' '
	GIT_DIR=$(pwd)/repo.git &&
	GIT_CONFIG=$GIT_DIR/config &&
	git config core.worktree non-existent &&
	GIT_WORK_TREE=work &&
	export GIT_DIR GIT_CONFIG GIT_WORK_TREE
'

test_expect_success 'outside' '
	test_rev_parse false false false &&
	(
		cd work2 &&
		test_rev_parse false false false
	)
'

test_expect_success 'inside work tree' '
	(
		cd work &&
		GIT_WORK_TREE=. &&
		test_rev_parse false false true ""
	)
'

test_expect_success 'subdir of work tree' '
	(
		cd work/sub/dir &&
		GIT_WORK_TREE=../.. &&
		test_rev_parse false false true sub/dir/
	)
'

test_expect_success 'setup: GIT_WORK_TREE=absolute, below git dir' '
	mv work repo.git/work &&
	mv work2 repo.git/work2 &&
	GIT_DIR=$(pwd)/repo.git &&
	GIT_CONFIG=$GIT_DIR/config &&
	GIT_WORK_TREE=$(pwd)/repo.git/work &&
	export GIT_DIR GIT_CONFIG GIT_WORK_TREE
'

test_expect_success 'outside' '
	echo outside &&
	test_rev_parse false false false
'

test_expect_success 'in repo.git' '
	(
		cd repo.git &&
		test_rev_parse false true false
	) &&
	(
		cd repo.git/objects &&
		test_rev_parse false true false
	) &&
	(
		cd repo.git/work2 &&
		test_rev_parse false true false
	)
'

test_expect_success 'inside work tree' '
	(
		cd repo.git/work &&
		test_rev_parse false true true ""
	)
'

test_expect_success 'subdir of work tree' '
	(
		cd repo.git/work/sub/dir &&
		test_rev_parse false true true sub/dir/
	)
'

test_expect_success 'find work tree from repo' '
	echo sub/dir/untracked >expected &&
	cat <<-\EOF >repo.git/work/.gitignore &&
	expected.*
	actual.*
	.gitignore
	EOF
	>repo.git/work/sub/dir/untracked &&
	(
		cd repo.git &&
		git ls-files --others --exclude-standard >../actual
	) &&
	test_cmp expected actual
'

test_expect_success 'find work tree from work tree' '
	echo sub/dir/tracked >expected &&
	>repo.git/work/sub/dir/tracked &&
	(
		cd repo.git/work/sub/dir &&
		git --git-dir=../../.. add tracked
	) &&
	(
		cd repo.git &&
		git ls-files >../actual
	) &&
	test_cmp expected actual
'

test_expect_success '_gently() groks relative GIT_DIR & GIT_WORK_TREE' '
	(
		cd repo.git/work/sub/dir &&
		GIT_DIR=../../.. &&
		GIT_WORK_TREE=../.. &&
		GIT_PAGER= &&
		export GIT_DIR GIT_WORK_TREE GIT_PAGER &&

		git diff --exit-code tracked &&
		echo changed >tracked &&
		test_must_fail git diff --exit-code tracked
	)
'

test_expect_success 'diff-index respects work tree under .git dir' '
	cat >diff-index-cached.expected <<-EOF &&
	:000000 100644 $_z40 $EMPTY_BLOB A	sub/dir/tracked
	EOF
	cat >diff-index.expected <<-EOF &&
	:000000 100644 $_z40 $_z40 A	sub/dir/tracked
	EOF

	(
		GIT_DIR=repo.git &&
		GIT_WORK_TREE=repo.git/work &&
		export GIT_DIR GIT_WORK_TREE &&
		git diff-index $EMPTY_TREE >diff-index.actual &&
		git diff-index --cached $EMPTY_TREE >diff-index-cached.actual
	) &&
	test_cmp diff-index.expected diff-index.actual &&
	test_cmp diff-index-cached.expected diff-index-cached.actual
'

test_expect_success 'diff-files respects work tree under .git dir' '
	cat >diff-files.expected <<-EOF &&
	:100644 100644 $EMPTY_BLOB $_z40 M	sub/dir/tracked
	EOF

	(
		GIT_DIR=repo.git &&
		GIT_WORK_TREE=repo.git/work &&
		export GIT_DIR GIT_WORK_TREE &&
		git diff-files >diff-files.actual
	) &&
	test_cmp diff-files.expected diff-files.actual
'

test_expect_success 'git diff respects work tree under .git dir' '
	cat >diff-TREE.expected <<-EOF &&
	diff --git a/sub/dir/tracked b/sub/dir/tracked
	new file mode 100644
	index 0000000..$CHANGED_BLOB7
	--- /dev/null
	+++ b/sub/dir/tracked
	@@ -0,0 +1 @@
	+changed
	EOF
	cat >diff-TREE-cached.expected <<-EOF &&
	diff --git a/sub/dir/tracked b/sub/dir/tracked
	new file mode 100644
	index 0000000..$EMPTY_BLOB7
	EOF
	cat >diff-FILES.expected <<-EOF &&
	diff --git a/sub/dir/tracked b/sub/dir/tracked
	index $EMPTY_BLOB7..$CHANGED_BLOB7 100644
	--- a/sub/dir/tracked
	+++ b/sub/dir/tracked
	@@ -0,0 +1 @@
	+changed
	EOF

	(
		GIT_DIR=repo.git &&
		GIT_WORK_TREE=repo.git/work &&
		export GIT_DIR GIT_WORK_TREE &&
		git diff $EMPTY_TREE >diff-TREE.actual &&
		git diff --cached $EMPTY_TREE >diff-TREE-cached.actual &&
		git diff >diff-FILES.actual
	) &&
	test_cmp diff-TREE.expected diff-TREE.actual &&
	test_cmp diff-TREE-cached.expected diff-TREE-cached.actual &&
	test_cmp diff-FILES.expected diff-FILES.actual
'

test_expect_success 'git grep' '
	echo dir/tracked >expected.grep &&
	(
		cd repo.git/work/sub &&
		GIT_DIR=../.. &&
		GIT_WORK_TREE=.. &&
		export GIT_DIR GIT_WORK_TREE &&
		git grep -l changed >../../../actual.grep
	) &&
	test_cmp expected.grep actual.grep
'

test_expect_success 'git commit' '
	(
		cd repo.git &&
		GIT_DIR=. GIT_WORK_TREE=work git commit -a -m done
	)
'

test_expect_success 'absolute pathspec should fail gracefully' '
	(
		cd repo.git &&
		test_might_fail git config --unset core.worktree &&
		test_must_fail git log HEAD -- /home
	)
'

test_expect_success 'make_relative_path handles double slashes in GIT_DIR' '
	>dummy_file &&
	echo git --git-dir="$(pwd)//repo.git" --work-tree="$(pwd)" add dummy_file &&
	git --git-dir="$(pwd)//repo.git" --work-tree="$(pwd)" add dummy_file
'

test_expect_success 'relative $GIT_WORK_TREE and git subprocesses' '
	GIT_DIR=repo.git GIT_WORK_TREE=repo.git/work \
	test-subprocess --setup-work-tree rev-parse --show-toplevel >actual &&
	echo "$(pwd)/repo.git/work" >expected &&
	test_cmp expected actual
'

test_expect_success 'Multi-worktree setup' '
	mkdir work &&
	mkdir -p repo.git/repos/foo &&
	cp repo.git/HEAD repo.git/index repo.git/repos/foo &&
	test_might_fail cp repo.git/sharedindex.* repo.git/repos/foo &&
	sane_unset GIT_DIR GIT_CONFIG GIT_WORK_TREE
'

test_expect_success 'GIT_DIR set (1)' '
	echo "gitdir: repo.git/repos/foo" >gitfile &&
	echo ../.. >repo.git/repos/foo/commondir &&
	(
		cd work &&
		GIT_DIR=../gitfile git rev-parse --git-common-dir >actual &&
		test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect &&
		test_cmp expect actual
	)
'

test_expect_success 'GIT_DIR set (2)' '
	echo "gitdir: repo.git/repos/foo" >gitfile &&
	echo "$(pwd)/repo.git" >repo.git/repos/foo/commondir &&
	(
		cd work &&
		GIT_DIR=../gitfile git rev-parse --git-common-dir >actual &&
		test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect &&
		test_cmp expect actual
	)
'

test_expect_success 'Auto discovery' '
	echo "gitdir: repo.git/repos/foo" >.git &&
	echo ../.. >repo.git/repos/foo/commondir &&
	(
		cd work &&
		git rev-parse --git-common-dir >actual &&
		test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect &&
		test_cmp expect actual &&
		echo haha >data1 &&
		git add data1 &&
		git ls-files --full-name :/ | grep data1 >actual &&
		echo work/data1 >expect &&
		test_cmp expect actual
	)
'

test_expect_success '$GIT_DIR/common overrides core.worktree' '
	mkdir elsewhere &&
	git --git-dir=repo.git config core.worktree "$TRASH_DIRECTORY/elsewhere" &&
	echo "gitdir: repo.git/repos/foo" >.git &&
	echo ../.. >repo.git/repos/foo/commondir &&
	(
		cd work &&
		git rev-parse --git-common-dir >actual &&
		test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect &&
		test_cmp expect actual &&
		echo haha >data2 &&
		git add data2 &&
		git ls-files --full-name :/ | grep data2 >actual &&
		echo work/data2 >expect &&
		test_cmp expect actual
	)
'

test_expect_success '$GIT_WORK_TREE overrides $GIT_DIR/common' '
	echo "gitdir: repo.git/repos/foo" >.git &&
	echo ../.. >repo.git/repos/foo/commondir &&
	(
		cd work &&
		echo haha >data3 &&
		git --git-dir=../.git --work-tree=. add data3 &&
		git ls-files --full-name -- :/ | grep data3 >actual &&
		echo data3 >expect &&
		test_cmp expect actual
	)
'

test_done
(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(SQ <"test separate work tree">)}
          spids: [4]
        )
      ]
      spids: [4]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(test_expect_success)} {(SQ <setup>)} 
      {
        (SQ <"\n"> <"\tEMPTY_TREE=$(git write-tree) &&\n"> 
          <"\tEMPTY_BLOB=$(git hash-object -t blob --stdin </dev/null) &&\n"> <"\tCHANGED_BLOB=$(echo changed | git hash-object -t blob --stdin) &&\n"> 
          <"\tEMPTY_BLOB7=$(echo $EMPTY_BLOB | sed \"s/\\(.......\\).*/\\1/\") &&\n"> <"\tCHANGED_BLOB7=$(echo $CHANGED_BLOB | sed \"s/\\(.......\\).*/\\1/\") &&\n"> <"\n"> 
          <"\tmkdir -p work/sub/dir &&\n"> <"\tmkdir -p work2 &&\n"> <"\tmv .git repo.git\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"setup: helper for testing rev-parse">)} 
      {
        (SQ <"\n"> <"\ttest_rev_parse() {\n"> <"\t\techo $1 >expected.bare &&\n"> 
          <"\t\techo $2 >expected.inside-git &&\n"> <"\t\techo $3 >expected.inside-worktree &&\n"> <"\t\tif test $# -ge 4\n"> <"\t\tthen\n"> 
          <"\t\t\techo $4 >expected.prefix\n"> <"\t\tfi &&\n"> <"\n"> <"\t\tgit rev-parse --is-bare-repository >actual.bare &&\n"> 
          <"\t\tgit rev-parse --is-inside-git-dir >actual.inside-git &&\n"> <"\t\tgit rev-parse --is-inside-work-tree >actual.inside-worktree &&\n"> <"\t\tif test $# -ge 4\n"> 
          <"\t\tthen\n"> <"\t\t\tgit rev-parse --show-prefix >actual.prefix\n"> <"\t\tfi &&\n"> <"\n"> 
          <"\t\ttest_cmp expected.bare actual.bare &&\n"> <"\t\ttest_cmp expected.inside-git actual.inside-git &&\n"> 
          <"\t\ttest_cmp expected.inside-worktree actual.inside-worktree &&\n"> <"\t\tif test $# -ge 4\n"> <"\t\tthen\n"> <"\t\t\t# rev-parse --show-prefix should output\n"> 
          <"\t\t\t# a single newline when at the top of the work tree,\n"> <"\t\t\t# but we test for that separately.\n"> 
          <"\t\t\ttest -z \"$4\" && ! test -s actual.prefix ||\n"> <"\t\t\ttest_cmp expected.prefix actual.prefix\n"> <"\t\tfi\n"> <"\t}\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"setup: core.worktree = relative path">)} 
      {
        (SQ <"\n"> <"\tsane_unset GIT_WORK_TREE &&\n"> <"\tGIT_DIR=repo.git &&\n"> 
          <"\tGIT_CONFIG=\"$(pwd)\"/$GIT_DIR/config &&\n"> <"\texport GIT_DIR GIT_CONFIG &&\n"> <"\tgit config core.worktree ../work\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <outside>)} {(SQ <"\n"> <"\ttest_rev_parse false false false\n">)})
    (C {(test_expect_success)} {(SQ <"inside work tree">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd work &&\n"> <"\t\tGIT_DIR=../repo.git &&\n"> 
          <"\t\tGIT_CONFIG=\"$(pwd)\"/$GIT_DIR/config &&\n"> <"\t\ttest_rev_parse false false true \"\"\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"empty prefix is actually written out">)} 
      {
        (SQ <"\n"> <"\techo >expected &&\n"> <"\t(\n"> <"\t\tcd work &&\n"> 
          <"\t\tGIT_DIR=../repo.git &&\n"> <"\t\tGIT_CONFIG=\"$(pwd)\"/$GIT_DIR/config &&\n"> <"\t\tgit rev-parse --show-prefix >../actual\n"> 
          <"\t) &&\n"> <"\ttest_cmp expected actual\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"subdir of work tree">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd work/sub/dir &&\n"> <"\t\tGIT_DIR=../../../repo.git &&\n"> 
          <"\t\tGIT_CONFIG=\"$(pwd)\"/$GIT_DIR/config &&\n"> <"\t\ttest_rev_parse false false true sub/dir/\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"setup: core.worktree = absolute path">)} 
      {
        (SQ <"\n"> <"\tsane_unset GIT_WORK_TREE &&\n"> <"\tGIT_DIR=$(pwd)/repo.git &&\n"> 
          <"\tGIT_CONFIG=$GIT_DIR/config &&\n"> <"\texport GIT_DIR GIT_CONFIG &&\n"> <"\tgit config core.worktree \"$(pwd)/work\"\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <outside>)} 
      {
        (SQ <"\n"> <"\ttest_rev_parse false false false &&\n"> <"\t(\n"> <"\t\tcd work2 &&\n"> 
          <"\t\ttest_rev_parse false false false\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"inside work tree">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd work &&\n"> <"\t\ttest_rev_parse false false true \"\"\n"> 
          <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"subdir of work tree">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd work/sub/dir &&\n"> 
          <"\t\ttest_rev_parse false false true sub/dir/\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"setup: GIT_WORK_TREE=relative (override core.worktree)">)} 
      {
        (SQ <"\n"> <"\tGIT_DIR=$(pwd)/repo.git &&\n"> <"\tGIT_CONFIG=$GIT_DIR/config &&\n"> 
          <"\tgit config core.worktree non-existent &&\n"> <"\tGIT_WORK_TREE=work &&\n"> <"\texport GIT_DIR GIT_CONFIG GIT_WORK_TREE\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <outside>)} 
      {
        (SQ <"\n"> <"\ttest_rev_parse false false false &&\n"> <"\t(\n"> <"\t\tcd work2 &&\n"> 
          <"\t\ttest_rev_parse false false false\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"inside work tree">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd work &&\n"> <"\t\tGIT_WORK_TREE=. &&\n"> 
          <"\t\ttest_rev_parse false false true \"\"\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"subdir of work tree">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd work/sub/dir &&\n"> <"\t\tGIT_WORK_TREE=../.. &&\n"> 
          <"\t\ttest_rev_parse false false true sub/dir/\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"setup: GIT_WORK_TREE=absolute, below git dir">)} 
      {
        (SQ <"\n"> <"\tmv work repo.git/work &&\n"> <"\tmv work2 repo.git/work2 &&\n"> 
          <"\tGIT_DIR=$(pwd)/repo.git &&\n"> <"\tGIT_CONFIG=$GIT_DIR/config &&\n"> <"\tGIT_WORK_TREE=$(pwd)/repo.git/work &&\n"> 
          <"\texport GIT_DIR GIT_CONFIG GIT_WORK_TREE\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <outside>)} 
      {(SQ <"\n"> <"\techo outside &&\n"> <"\ttest_rev_parse false false false\n">)}
    )
    (C {(test_expect_success)} {(SQ <"in repo.git">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd repo.git &&\n"> <"\t\ttest_rev_parse false true false\n"> 
          <"\t) &&\n"> <"\t(\n"> <"\t\tcd repo.git/objects &&\n"> <"\t\ttest_rev_parse false true false\n"> <"\t) &&\n"> 
          <"\t(\n"> <"\t\tcd repo.git/work2 &&\n"> <"\t\ttest_rev_parse false true false\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"inside work tree">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd repo.git/work &&\n"> <"\t\ttest_rev_parse false true true \"\"\n"> 
          <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"subdir of work tree">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd repo.git/work/sub/dir &&\n"> 
          <"\t\ttest_rev_parse false true true sub/dir/\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"find work tree from repo">)} 
      {
        (SQ <"\n"> <"\techo sub/dir/untracked >expected &&\n"> 
          <"\tcat <<-\\EOF >repo.git/work/.gitignore &&\n"> <"\texpected.*\n"> <"\tactual.*\n"> <"\t.gitignore\n"> <"\tEOF\n"> 
          <"\t>repo.git/work/sub/dir/untracked &&\n"> <"\t(\n"> <"\t\tcd repo.git &&\n"> <"\t\tgit ls-files --others --exclude-standard >../actual\n"> 
          <"\t) &&\n"> <"\ttest_cmp expected actual\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"find work tree from work tree">)} 
      {
        (SQ <"\n"> <"\techo sub/dir/tracked >expected &&\n"> <"\t>repo.git/work/sub/dir/tracked &&\n"> 
          <"\t(\n"> <"\t\tcd repo.git/work/sub/dir &&\n"> <"\t\tgit --git-dir=../../.. add tracked\n"> <"\t) &&\n"> 
          <"\t(\n"> <"\t\tcd repo.git &&\n"> <"\t\tgit ls-files >../actual\n"> <"\t) &&\n"> <"\ttest_cmp expected actual\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"_gently() groks relative GIT_DIR & GIT_WORK_TREE">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd repo.git/work/sub/dir &&\n"> <"\t\tGIT_DIR=../../.. &&\n"> 
          <"\t\tGIT_WORK_TREE=../.. &&\n"> <"\t\tGIT_PAGER= &&\n"> <"\t\texport GIT_DIR GIT_WORK_TREE GIT_PAGER &&\n"> <"\n"> 
          <"\t\tgit diff --exit-code tracked &&\n"> <"\t\techo changed >tracked &&\n"> <"\t\ttest_must_fail git diff --exit-code tracked\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"diff-index respects work tree under .git dir">)} 
      {
        (SQ <"\n"> <"\tcat >diff-index-cached.expected <<-EOF &&\n"> 
          <"\t:000000 100644 $_z40 $EMPTY_BLOB A\tsub/dir/tracked\n"> <"\tEOF\n"> <"\tcat >diff-index.expected <<-EOF &&\n"> 
          <"\t:000000 100644 $_z40 $_z40 A\tsub/dir/tracked\n"> <"\tEOF\n"> <"\n"> <"\t(\n"> <"\t\tGIT_DIR=repo.git &&\n"> <"\t\tGIT_WORK_TREE=repo.git/work &&\n"> 
          <"\t\texport GIT_DIR GIT_WORK_TREE &&\n"> <"\t\tgit diff-index $EMPTY_TREE >diff-index.actual &&\n"> 
          <"\t\tgit diff-index --cached $EMPTY_TREE >diff-index-cached.actual\n"> <"\t) &&\n"> <"\ttest_cmp diff-index.expected diff-index.actual &&\n"> 
          <"\ttest_cmp diff-index-cached.expected diff-index-cached.actual\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"diff-files respects work tree under .git dir">)} 
      {
        (SQ <"\n"> <"\tcat >diff-files.expected <<-EOF &&\n"> 
          <"\t:100644 100644 $EMPTY_BLOB $_z40 M\tsub/dir/tracked\n"> <"\tEOF\n"> <"\n"> <"\t(\n"> <"\t\tGIT_DIR=repo.git &&\n"> <"\t\tGIT_WORK_TREE=repo.git/work &&\n"> 
          <"\t\texport GIT_DIR GIT_WORK_TREE &&\n"> <"\t\tgit diff-files >diff-files.actual\n"> <"\t) &&\n"> 
          <"\ttest_cmp diff-files.expected diff-files.actual\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"git diff respects work tree under .git dir">)} 
      {
        (SQ <"\n"> <"\tcat >diff-TREE.expected <<-EOF &&\n"> 
          <"\tdiff --git a/sub/dir/tracked b/sub/dir/tracked\n"> <"\tnew file mode 100644\n"> <"\tindex 0000000..$CHANGED_BLOB7\n"> <"\t--- /dev/null\n"> 
          <"\t+++ b/sub/dir/tracked\n"> <"\t@@ -0,0 +1 @@\n"> <"\t+changed\n"> <"\tEOF\n"> <"\tcat >diff-TREE-cached.expected <<-EOF &&\n"> 
          <"\tdiff --git a/sub/dir/tracked b/sub/dir/tracked\n"> <"\tnew file mode 100644\n"> <"\tindex 0000000..$EMPTY_BLOB7\n"> <"\tEOF\n"> 
          <"\tcat >diff-FILES.expected <<-EOF &&\n"> <"\tdiff --git a/sub/dir/tracked b/sub/dir/tracked\n"> 
          <"\tindex $EMPTY_BLOB7..$CHANGED_BLOB7 100644\n"> <"\t--- a/sub/dir/tracked\n"> <"\t+++ b/sub/dir/tracked\n"> <"\t@@ -0,0 +1 @@\n"> <"\t+changed\n"> 
          <"\tEOF\n"> <"\n"> <"\t(\n"> <"\t\tGIT_DIR=repo.git &&\n"> <"\t\tGIT_WORK_TREE=repo.git/work &&\n"> 
          <"\t\texport GIT_DIR GIT_WORK_TREE &&\n"> <"\t\tgit diff $EMPTY_TREE >diff-TREE.actual &&\n"> 
          <"\t\tgit diff --cached $EMPTY_TREE >diff-TREE-cached.actual &&\n"> <"\t\tgit diff >diff-FILES.actual\n"> <"\t) &&\n"> 
          <"\ttest_cmp diff-TREE.expected diff-TREE.actual &&\n"> <"\ttest_cmp diff-TREE-cached.expected diff-TREE-cached.actual &&\n"> 
          <"\ttest_cmp diff-FILES.expected diff-FILES.actual\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"git grep">)} 
      {
        (SQ <"\n"> <"\techo dir/tracked >expected.grep &&\n"> <"\t(\n"> 
          <"\t\tcd repo.git/work/sub &&\n"> <"\t\tGIT_DIR=../.. &&\n"> <"\t\tGIT_WORK_TREE=.. &&\n"> <"\t\texport GIT_DIR GIT_WORK_TREE &&\n"> 
          <"\t\tgit grep -l changed >../../../actual.grep\n"> <"\t) &&\n"> <"\ttest_cmp expected.grep actual.grep\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"git commit">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd repo.git &&\n"> 
          <"\t\tGIT_DIR=. GIT_WORK_TREE=work git commit -a -m done\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"absolute pathspec should fail gracefully">)} 
      {
        (SQ <"\n"> <"\t(\n"> <"\t\tcd repo.git &&\n"> 
          <"\t\ttest_might_fail git config --unset core.worktree &&\n"> <"\t\ttest_must_fail git log HEAD -- /home\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"make_relative_path handles double slashes in GIT_DIR">)} 
      {
        (SQ <"\n"> <"\t>dummy_file &&\n"> 
          <"\techo git --git-dir=\"$(pwd)//repo.git\" --work-tree=\"$(pwd)\" add dummy_file &&\n"> <"\tgit --git-dir=\"$(pwd)//repo.git\" --work-tree=\"$(pwd)\" add dummy_file\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"relative $GIT_WORK_TREE and git subprocesses">)} 
      {
        (SQ <"\n"> <"\tGIT_DIR=repo.git GIT_WORK_TREE=repo.git/work \\\n"> 
          <"\ttest-subprocess --setup-work-tree rev-parse --show-toplevel >actual &&\n"> <"\techo \"$(pwd)/repo.git/work\" >expected &&\n"> <"\ttest_cmp expected actual\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"Multi-worktree setup">)} 
      {
        (SQ <"\n"> <"\tmkdir work &&\n"> <"\tmkdir -p repo.git/repos/foo &&\n"> 
          <"\tcp repo.git/HEAD repo.git/index repo.git/repos/foo &&\n"> <"\ttest_might_fail cp repo.git/sharedindex.* repo.git/repos/foo &&\n"> 
          <"\tsane_unset GIT_DIR GIT_CONFIG GIT_WORK_TREE\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"GIT_DIR set (1)">)} 
      {
        (SQ <"\n"> <"\techo \"gitdir: repo.git/repos/foo\" >gitfile &&\n"> 
          <"\techo ../.. >repo.git/repos/foo/commondir &&\n"> <"\t(\n"> <"\t\tcd work &&\n"> <"\t\tGIT_DIR=../gitfile git rev-parse --git-common-dir >actual &&\n"> 
          <"\t\ttest-path-utils real_path \"$TRASH_DIRECTORY/repo.git\" >expect &&\n"> <"\t\ttest_cmp expect actual\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"GIT_DIR set (2)">)} 
      {
        (SQ <"\n"> <"\techo \"gitdir: repo.git/repos/foo\" >gitfile &&\n"> 
          <"\techo \"$(pwd)/repo.git\" >repo.git/repos/foo/commondir &&\n"> <"\t(\n"> <"\t\tcd work &&\n"> <"\t\tGIT_DIR=../gitfile git rev-parse --git-common-dir >actual &&\n"> 
          <"\t\ttest-path-utils real_path \"$TRASH_DIRECTORY/repo.git\" >expect &&\n"> <"\t\ttest_cmp expect actual\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"Auto discovery">)} 
      {
        (SQ <"\n"> <"\techo \"gitdir: repo.git/repos/foo\" >.git &&\n"> 
          <"\techo ../.. >repo.git/repos/foo/commondir &&\n"> <"\t(\n"> <"\t\tcd work &&\n"> <"\t\tgit rev-parse --git-common-dir >actual &&\n"> 
          <"\t\ttest-path-utils real_path \"$TRASH_DIRECTORY/repo.git\" >expect &&\n"> <"\t\ttest_cmp expect actual &&\n"> <"\t\techo haha >data1 &&\n"> <"\t\tgit add data1 &&\n"> 
          <"\t\tgit ls-files --full-name :/ | grep data1 >actual &&\n"> <"\t\techo work/data1 >expect &&\n"> <"\t\ttest_cmp expect actual\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"$GIT_DIR/common overrides core.worktree">)} 
      {
        (SQ <"\n"> <"\tmkdir elsewhere &&\n"> 
          <"\tgit --git-dir=repo.git config core.worktree \"$TRASH_DIRECTORY/elsewhere\" &&\n"> <"\techo \"gitdir: repo.git/repos/foo\" >.git &&\n"> 
          <"\techo ../.. >repo.git/repos/foo/commondir &&\n"> <"\t(\n"> <"\t\tcd work &&\n"> <"\t\tgit rev-parse --git-common-dir >actual &&\n"> 
          <"\t\ttest-path-utils real_path \"$TRASH_DIRECTORY/repo.git\" >expect &&\n"> <"\t\ttest_cmp expect actual &&\n"> <"\t\techo haha >data2 &&\n"> <"\t\tgit add data2 &&\n"> 
          <"\t\tgit ls-files --full-name :/ | grep data2 >actual &&\n"> <"\t\techo work/data2 >expect &&\n"> <"\t\ttest_cmp expect actual\n"> <"\t)\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"$GIT_WORK_TREE overrides $GIT_DIR/common">)} 
      {
        (SQ <"\n"> <"\techo \"gitdir: repo.git/repos/foo\" >.git &&\n"> 
          <"\techo ../.. >repo.git/repos/foo/commondir &&\n"> <"\t(\n"> <"\t\tcd work &&\n"> <"\t\techo haha >data3 &&\n"> 
          <"\t\tgit --git-dir=../.git --work-tree=. add data3 &&\n"> <"\t\tgit ls-files --full-name -- :/ | grep data3 >actual &&\n"> <"\t\techo data3 >expect &&\n"> 
          <"\t\ttest_cmp expect actual\n"> <"\t)\n">
        )
      }
    )
    (C {(test_done)})
  ]
)