[PATCH 094/144] t7505-prepare-commit-msg-hook.sh: use the $( ... ) construct for command substitution

[Elia Pinto <gitter.spiros@xxxxxxxxx>]

The Git CodingGuidelines prefer the $( ... ) construct for command
substitution instead of using the back-quotes, or grave accents (`..`).

The backquoted form is the historical method for command substitution,
and is supported by POSIX. However,all but the simplest uses become
complicated quickly. In particular,embedded command substitutions
and/or the use of double quotes require careful escaping with the backslash
character. Because of this the POSIX shell adopted the $(…) feature from
the Korn shell.

Signed-off-by: Elia Pinto <gitter.spiros@xxxxxxxxx>
---
 t/t7505-prepare-commit-msg-hook.sh |   32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/t/t7505-prepare-commit-msg-hook.sh b/t/t7505-prepare-commit-msg-hook.sh
index 3573751..e3baf16 100755
--- a/t/t7505-prepare-commit-msg-hook.sh
+++ b/t/t7505-prepare-commit-msg-hook.sh
@@ -53,7 +53,7 @@ test_expect_success 'with hook (-m)' '
 	echo "more" >> file &&
 	git add file &&
 	git commit -m "more" &&
-	test "`git log -1 --pretty=format:%s`" = "message (no editor)"
+	test "$(git log -1 --pretty=format:%s)" = "message (no editor)"
 
 '
 
@@ -62,7 +62,7 @@ test_expect_success 'with hook (-m editor)' '
 	echo "more" >> file &&
 	git add file &&
 	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit -e -m "more more" &&
-	test "`git log -1 --pretty=format:%s`" = message
+	test "$(git log -1 --pretty=format:%s)" = message
 
 '
 
@@ -71,7 +71,7 @@ test_expect_success 'with hook (-t)' '
 	echo "more" >> file &&
 	git add file &&
 	git commit -t "$(git rev-parse --git-dir)/template" &&
-	test "`git log -1 --pretty=format:%s`" = template
+	test "$(git log -1 --pretty=format:%s)" = template
 
 '
 
@@ -80,7 +80,7 @@ test_expect_success 'with hook (-F)' '
 	echo "more" >> file &&
 	git add file &&
 	(echo more | git commit -F -) &&
-	test "`git log -1 --pretty=format:%s`" = "message (no editor)"
+	test "$(git log -1 --pretty=format:%s)" = "message (no editor)"
 
 '
 
@@ -89,17 +89,17 @@ test_expect_success 'with hook (-F editor)' '
 	echo "more" >> file &&
 	git add file &&
 	(echo more more | GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit -e -F -) &&
-	test "`git log -1 --pretty=format:%s`" = message
+	test "$(git log -1 --pretty=format:%s)" = message
 
 '
 
 test_expect_success 'with hook (-C)' '
 
-	head=`git rev-parse HEAD` &&
+	head=$(git rev-parse HEAD) &&
 	echo "more" >> file &&
 	git add file &&
 	git commit -C $head &&
-	test "`git log -1 --pretty=format:%s`" = "$head (no editor)"
+	test "$(git log -1 --pretty=format:%s)" = "$head (no editor)"
 
 '
 
@@ -108,40 +108,40 @@ test_expect_success 'with hook (editor)' '
 	echo "more more" >> file &&
 	git add file &&
 	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit &&
-	test "`git log -1 --pretty=format:%s`" = default
+	test "$(git log -1 --pretty=format:%s)" = default
 
 '
 
 test_expect_success 'with hook (--amend)' '
 
-	head=`git rev-parse HEAD` &&
+	head=$(git rev-parse HEAD) &&
 	echo "more" >> file &&
 	git add file &&
 	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit --amend &&
-	test "`git log -1 --pretty=format:%s`" = "$head"
+	test "$(git log -1 --pretty=format:%s)" = "$head"
 
 '
 
 test_expect_success 'with hook (-c)' '
 
-	head=`git rev-parse HEAD` &&
+	head=$(git rev-parse HEAD) &&
 	echo "more" >> file &&
 	git add file &&
 	GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit -c $head &&
-	test "`git log -1 --pretty=format:%s`" = "$head"
+	test "$(git log -1 --pretty=format:%s)" = "$head"
 
 '
 
 test_expect_success 'with hook (merge)' '
 
-	head=`git rev-parse HEAD` &&
+	head=$(git rev-parse HEAD) &&
 	git checkout -b other HEAD@{1} &&
 	echo "more" >> file &&
 	git add file &&
 	git commit -m other &&
 	git checkout - &&
 	git merge other &&
-	test "`git log -1 --pretty=format:%s`" = merge
+	test "$(git log -1 --pretty=format:%s)" = merge
 '
 
 cat > "$HOOK" <<'EOF'
@@ -151,7 +151,7 @@ EOF
 
 test_expect_success 'with failing hook' '
 
-	head=`git rev-parse HEAD` &&
+	head=$(git rev-parse HEAD) &&
 	echo "more" >> file &&
 	git add file &&
 	! GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit -c $head
@@ -160,7 +160,7 @@ test_expect_success 'with failing hook' '
 
 test_expect_success 'with failing hook (--no-verify)' '
 
-	head=`git rev-parse HEAD` &&
+	head=$(git rev-parse HEAD) &&
 	echo "more" >> file &&
 	git add file &&
 	! GIT_EDITOR="\"\$FAKE_EDITOR\"" git commit --no-verify -c $head
-- 
1.7.10.4

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