Shell scripts: replace backquotes with $().

[simgrid.git] / tools / git-hooks / clang-format.pre-commit

diff --git a/tools/git-hooks/clang-format.pre-commit b/tools/git-hooks/clang-format.pre-commit
index fdedc56..8d1bd55 100755 (executable)
--- a/tools/git-hooks/clang-format.pre-commit
+++ b/tools/git-hooks/clang-format.pre-commit
@@ -43,7 +43,7 @@ CLANG_FORMAT=$(which clang-format-3.8)
 for name in git-clang-format-3.9 git-clang-format-3.8 git-clang-format ; do
  where=$(which $name)
  if [ x != "x$where" ] ; then
-   GIT_SUBCOMMAND=`echo $name|sed 's/git-//'`
+   GIT_SUBCOMMAND=$(echo $name|sed 's/git-//')
    break
  fi
 done
@@ -74,10 +74,10 @@ canonicalize_filename () {
     local result=""
 
     # Need to restore the working directory after work.
-    pushd `pwd` > /dev/null
+    pushd $(pwd) > /dev/null
 
     cd "$(dirname "$target_file")"
-    target_file=`basename $target_file`
+    target_file=$(basename $target_file)
 
     # Iterate down a (possible) chain of symlinks
     while [ -L "$target_file" ]
@@ -89,7 +89,7 @@ canonicalize_filename () {
 
     # Compute the canonicalized name by finding the physical path
     # for the directory we're in and appending the target file.
-    physical_directory=`pwd -P`
+    physical_directory=$(pwd -P)
     result="$physical_directory"/"$target_file"
 
     # restore the working directory after work.
@@ -149,7 +149,9 @@ do
     #    +++ - timestamp
     # to both lines working on the same file and having a a/ and b/ prefix.
     # Else it can not be applied with 'git apply'.
-    git ${GIT_SUBCOMMAND} --binary ${CLANG_FORMAT} --diff -q >> "$patch"
+    git ${GIT_SUBCOMMAND} --binary ${CLANG_FORMAT} --diff -q "$file" \
+      | (grep -v "no modified files to format"||true) \
+      >> "$patch"
     #"$CLANG_FORMAT" -style=file "$file" | \
         #diff -u "$file" - | \
         #sed -e "1s|--- |--- a/|" -e "2s|+++ -|+++ b/$file|" >> "$patch"