git-clone.sh: use the $( ... ) construct for command substitution

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} done and then carefully proof-read. Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Elia Pinto committed Apr 16, 2014 at 10:29 UTC add77e8400252ef59441770a96379dcad797b649
1 file changed +10 -10
contrib/examples/git-clone.sh
+10 -10
@@ -40,7 +40,7 @@ eval "$(echo "$OPTIONS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)
40
41 get_repo_base() {
42 (
43 - cd "`/bin/pwd`" &&
43 + cd "$(/bin/pwd)" &&
44 cd "$1" || cd "$1.git" &&
45 {
46 cd .git
@@ -50,7 +50,7 @@ get_repo_base() {
50 }
51
52 if [ -n "$GIT_SSL_NO_VERIFY" -o \
53 - "`git config --bool http.sslVerify`" = false ]; then
53 + "$(git config --bool http.sslVerify)" = false ]; then
54 curl_extra_args="-k"
55 fi
56
@@ -70,7 +70,7 @@ clone_dumb_http () {
70 clone_tmp="$GIT_DIR/clone-tmp" &&
71 mkdir -p "$clone_tmp" || exit 1
72 if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \
73 - "`git config --bool http.noEPSV`" = true ]; then
73 + "$(git config --bool http.noEPSV)" = true ]; then
74 curl_extra_args="${curl_extra_args} --disable-epsv"
75 fi
76 http_fetch "$1/info/refs" "$clone_tmp/refs" ||
@@ -79,7 +79,7 @@ Perhaps git-update-server-info needs to be run there?"
79 test "z$quiet" = z && v=-v || v=
80 while read sha1 refname
81 do
82 - name=`expr "z$refname" : 'zrefs/\(.*\)'` &&
82 + name=$(expr "z$refname" : 'zrefs/\(.*\)') &&
83 case "$name" in
84 *^*) continue;;
85 esac
@@ -88,7 +88,7 @@ Perhaps git-update-server-info needs to be run there?"
88 *) continue ;;
89 esac
90 if test -n "$use_separate_remote" &&
91 - branch_name=`expr "z$name" : 'zheads/\(.*\)'`
91 + branch_name=$(expr "z$name" : 'zheads/\(.*\)')
92 then
93 tname="remotes/$origin/$branch_name"
94 else
@@ -100,7 +100,7 @@ Perhaps git-update-server-info needs to be run there?"
100 http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" ||
101 rm -f "$GIT_DIR/REMOTE_HEAD"
102 if test -f "$GIT_DIR/REMOTE_HEAD"; then
103 - head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
103 + head_sha1=$(cat "$GIT_DIR/REMOTE_HEAD")
104 case "$head_sha1" in
105 'ref: refs/'*)
106 ;;
@@ -444,15 +444,15 @@ then
444 # a non-bare repository is always in separate-remote layout
445 remote_top="refs/remotes/$origin"
446 head_sha1=
447 - test ! -r "$GIT_DIR/REMOTE_HEAD" || head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
447 + test ! -r "$GIT_DIR/REMOTE_HEAD" || head_sha1=$(cat "$GIT_DIR/REMOTE_HEAD")
448 case "$head_sha1" in
449 'ref: refs/'*)
450 # Uh-oh, the remote told us (http transport done against
451 # new style repository with a symref HEAD).
452 # Ideally we should skip the guesswork but for now
453 # opt for minimum change.
454 - head_sha1=`expr "z$head_sha1" : 'zref: refs/heads/\(.*\)'`
455 - head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"`
454 + head_sha1=$(expr "z$head_sha1" : 'zref: refs/heads/\(.*\)')
455 + head_sha1=$(cat "$GIT_DIR/$remote_top/$head_sha1")
456 ;;
457 esac
458
@@ -467,7 +467,7 @@ then
467 while read name
468 do
469 test t = $done && continue
470 - branch_tip=`cat "$GIT_DIR/$remote_top/$name"`
470 + branch_tip=$(cat "$GIT_DIR/$remote_top/$name")
471 if test "$head_sha1" = "$branch_tip"
472 then
473 echo "$name"