[PATCH 09/10] t5301-sliding-window.sh: use the $( ... ) construct for command substitution

From: Elia Pinto <gitter.spiros@gmail.com>
Date: Dec 22, 2015, 15:27 UTC
Message-ID: <1450798073-22811-10-git-send-email-gitter.spiros@gmail.com>
In-Reply-To: <1450798073-22811-1-git-send-email-gitter.spiros@gmail.com>

The Git CodingGuidelines prefer the $(...) construct for command substitution instead of using the backquotes `...`.

The backquoted form is the traditional 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.

The patch was generated by:

for _f in $(find . -name "*.sh")
do
	perl -i -pe 'BEGIN{undef $/;} s/`(.+?)`/\$(\1)/smg'  "${_f}"
done

and then carefully proof-read.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
---
 t/t5301-sliding-window.sh | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/t/t5301-sliding-window.sh b/t/t5301-sliding-window.sh
index 2fc5af6..cae8c2e 100755
--- a/t/t5301-sliding-window.sh
+++ b/t/t5301-sliding-window.sh
@@ -16,12 +16,12 @@ test_expect_success \
          git update-index --add $i || return 1
      done &&
      echo d >d && cat c >>d && git update-index --add d &&
-     tree=`git write-tree` &&
-     commit1=`git commit-tree $tree </dev/null` &&
+     tree=$(git write-tree) &&
+     commit1=$(git commit-tree $tree </dev/null) &&
      git update-ref HEAD $commit1 &&
      git repack -a -d &&
-     test "`git count-objects`" = "0 objects, 0 kilobytes" &&
-     pack1=`ls .git/objects/pack/*.pack` &&
+     test "$(git count-objects)" = "0 objects, 0 kilobytes" &&
+     pack1=$(ls .git/objects/pack/*.pack) &&
      test -f "$pack1"'
 
 test_expect_success \
@@ -43,11 +43,11 @@ test_expect_success \
     'repack -a -d, packedGit{WindowSize,Limit} == 1 page' \
     'git config core.packedGitWindowSize 512 &&
      git config core.packedGitLimit 512 &&
-     commit2=`git commit-tree $tree -p $commit1 </dev/null` &&
+     commit2=$(git commit-tree $tree -p $commit1 </dev/null) &&
      git update-ref HEAD $commit2 &&
      git repack -a -d &&
-     test "`git count-objects`" = "0 objects, 0 kilobytes" &&
-     pack2=`ls .git/objects/pack/*.pack` &&
+     test "$(git count-objects)" = "0 objects, 0 kilobytes" &&
+     pack2=$(ls .git/objects/pack/*.pack) &&
      test -f "$pack2" &&
      test "$pack1" \!= "$pack2"'

-- 
2.3.3.GIT