[PATCH 004/14] git-clone.sh: use the $( ... ) construct for command substitution
- From
Elia Pinto <gitter.spiros@gmail.com>
- Date
- Apr 16, 2014, 17:29 UTC
- Message-ID
- <1397669398-25410-4-git-send-email-gitter.spiros@gmail.com>
- In-Reply-To
- <1397669398-25410-1-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
sed -i 's@`\(.*\)`@$(\1)@g' ${_f}
doneand then carefully proof-read.
Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> --- contrib/examples/git-clone.sh | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/contrib/examples/git-clone.sh b/contrib/examples/git-clone.sh index 547228e..b4c9376 100755 --- a/contrib/examples/git-clone.sh +++ b/contrib/examples/git-clone.sh @@ -40,7 +40,7 @@ eval "$(echo "$OPTIONS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?) get_repo_base() { ( - cd "`/bin/pwd`" && + cd "$(/bin/pwd)" && cd "$1" || cd "$1.git" && { cd .git @@ -50,7 +50,7 @@ get_repo_base() { } if [ -n "$GIT_SSL_NO_VERIFY" -o \ - "`git config --bool http.sslVerify`" = false ]; then + "$(git config --bool http.sslVerify)" = false ]; then curl_extra_args="-k" fi @@ -70,7 +70,7 @@ clone_dumb_http () { clone_tmp="$GIT_DIR/clone-tmp" && mkdir -p "$clone_tmp" || exit 1 if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \ - "`git config --bool http.noEPSV`" = true ]; then + "$(git config --bool http.noEPSV)" = true ]; then curl_extra_args="${curl_extra_args} --disable-epsv" fi http_fetch "$1/info/refs" "$clone_tmp/refs" || @@ -79,7 +79,7 @@ Perhaps git-update-server-info needs to be run there?" test "z$quiet" = z && v=-v || v= while read sha1 refname do - name=`expr "z$refname" : 'zrefs/\(.*\)'` && + name=$(expr "z$refname" : 'zrefs/\(.*\)') && case "$name" in *^*) continue;; esac @@ -88,7 +88,7 @@ Perhaps git-update-server-info needs to be run there?" *) continue ;; esac if test -n "$use_separate_remote" && - branch_name=`expr "z$name" : 'zheads/\(.*\)'` + branch_name=$(expr "z$name" : 'zheads/\(.*\)') then tname="remotes/$origin/$branch_name" else @@ -100,7 +100,7 @@ Perhaps git-update-server-info needs to be run there?" http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" || rm -f "$GIT_DIR/REMOTE_HEAD" if test -f "$GIT_DIR/REMOTE_HEAD"; then - head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` + head_sha1=$(cat "$GIT_DIR/REMOTE_HEAD") case "$head_sha1" in 'ref: refs/'*) ;; @@ -444,15 +444,15 @@ then # a non-bare repository is always in separate-remote layout remote_top="refs/remotes/$origin" head_sha1= - test ! -r "$GIT_DIR/REMOTE_HEAD" || head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` + test ! -r "$GIT_DIR/REMOTE_HEAD" || head_sha1=$(cat "$GIT_DIR/REMOTE_HEAD") case "$head_sha1" in 'ref: refs/'*) # Uh-oh, the remote told us (http transport done against # new style repository with a symref HEAD). # Ideally we should skip the guesswork but for now # opt for minimum change. - head_sha1=`expr "z$head_sha1" : 'zref: refs/heads/\(.*\)'` - head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"` + head_sha1=$(expr "z$head_sha1" : 'zref: refs/heads/\(.*\)') + head_sha1=$(cat "$GIT_DIR/$remote_top/$head_sha1") ;; esac @@ -467,7 +467,7 @@ then while read name do test t = $done && continue - branch_tip=`cat "$GIT_DIR/$remote_top/$name"` + branch_tip=$(cat "$GIT_DIR/$remote_top/$name") if test "$head_sha1" = "$branch_tip" then echo "$name"
-- 1.7.10.4