t5613: do not chdir in main process

Our usual style when working with subdirectories is to chdir
inside a subshell or to use "git -C", which means we do not
have to constantly return to the main test directory. Let's
convert this old test, which does not follow that style.

Signed-off-by: Jeff King <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: peff

t/t5613-info-alternate.sh

@@ -6,44 +6,39 @@
 test_description='test transitive info/alternate entries'
 . ./test-lib.sh
 
-base_dir=$(pwd)
-
 test_expect_success 'preparing first repository' '
-	test_create_repo A &&
-	cd A &&
-	echo "Hello World" > file1 &&
-	git add file1 &&
-	git commit -m "Initial commit" file1 &&
-	git repack -a -d &&
-	git prune
+	test_create_repo A && (
+		cd A &&
+		echo "Hello World" > file1 &&
+		git add file1 &&
+		git commit -m "Initial commit" file1 &&
+		git repack -a -d &&
+		git prune
+	)
 '
 
-cd "$base_dir"
-
 test_expect_success 'preparing second repository' '
-	git clone -l -s A B &&
-	cd B &&
-	echo "foo bar" > file2 &&
-	git add file2 &&
-	git commit -m "next commit" file2 &&
-	git repack -a -d -l &&
-	git prune
+	git clone -l -s A B && (
+		cd B &&
+		echo "foo bar" > file2 &&
+		git add file2 &&
+		git commit -m "next commit" file2 &&
+		git repack -a -d -l &&
+		git prune
+	)
 '
 
-cd "$base_dir"
-
 test_expect_success 'preparing third repository' '
-	git clone -l -s B C &&
-	cd C &&
-	echo "Goodbye, cruel world" > file3 &&
-	git add file3 &&
-	git commit -m "one more" file3 &&
-	git repack -a -d -l &&
-	git prune
+	git clone -l -s B C && (
+		cd C &&
+		echo "Goodbye, cruel world" > file3 &&
+		git add file3 &&
+		git commit -m "one more" file3 &&
+		git repack -a -d -l &&
+		git prune
+	)
 '
 
-cd "$base_dir"
-
 test_expect_success 'creating too deep nesting' '
 	git clone -l -s C D &&
 	git clone -l -s D E &&
@@ -53,55 +48,34 @@ test_expect_success 'creating too deep nesting' '
 '
 
 test_expect_success 'invalidity of deepest repository' '
-	cd H &&
-	test_must_fail git fsck
+	test_must_fail git -C H fsck
 '
 
-cd "$base_dir"
-
 test_expect_success 'validity of third repository' '
-	cd C &&
-	git fsck
+	git -C C fsck
 '
 
-cd "$base_dir"
-
 test_expect_success 'validity of fourth repository' '
-	cd D &&
-	git fsck
+	git -C D fsck
 '
 
-cd "$base_dir"
-
 test_expect_success 'breaking of loops' '
-	echo "$base_dir"/B/.git/objects >>"$base_dir"/A/.git/objects/info/alternatesi &&
-	cd C &&
-	git fsck
+	echo "$(pwd)"/B/.git/objects >>A/.git/objects/info/alternates &&
+	git -C C fsck
 '
 
-cd "$base_dir"
-
 test_expect_success 'that info/alternates is necessary' '
-	cd C &&
-	rm -f .git/objects/info/alternates &&
-	test_must_fail git fsck
+	rm -f C/.git/objects/info/alternates &&
+	test_must_fail git -C C fsck
 '
 
-cd "$base_dir"
-
 test_expect_success 'that relative alternate is possible for current dir' '
-	cd C &&
-	echo "../../../B/.git/objects" > .git/objects/info/alternates &&
+	echo "../../../B/.git/objects" >C/.git/objects/info/alternates &&
 	git fsck
 '
 
-cd "$base_dir"
-
 test_expect_success 'that relative alternate is only possible for current dir' '
-	cd D &&
-	test_must_fail git fsck
+	test_must_fail git -C D fsck
 '
 
-cd "$base_dir"
-
 test_done