Merge pull request #24700 from tengqm/improve-lsync

Improve the lsync script

scripts/lsync.sh

@@ -3,27 +3,37 @@
 # This script checks if the English version of a page has changed since a localized
 # page has been committed.
 
-if [ "$#" -ne 1 ] || ! [ -f "$1" ]; then
+if [ "$#" -ne 1 ] ; then
-  echo -e "\nThis script checks if the English version of a page has changed since a "
+  echo -e "\nThis script checks if the English version of a page has changed since a " >&2
-  echo -e "localized page has been committed.\n"
+  echo -e "localized page has been committed.\n" >&2
   echo -e "Usage:\n\t$0 <PATH>\n" >&2
   echo -e "Example:\n\t$0 content/zh/docs/concepts/_index.md\n" >&2
   exit 1
 fi
 
+# Check if path exists, and whether it is a directory or a file
+if [ ! -e "$1" ] ; then
+  echo "Path not found: '$1'" >&2
+  exit 2
+elif [ -d "$1" ] ; then
+  IS_DIR=1
+  EXTRA_FLAGS="--stat"
+else
+  IS_DIR=0
+fi
 LOCALIZED="$1"
 
 # Try get the English version
 EN_VERSION=`echo $LOCALIZED | sed "s/content\/..\//content\/en\//g"`
-if ! [ -f $EN_VERSION ]; then
+if [ $IS_DIR -eq 1 -a ! -e $EN_VERSION ]; then
   echo "$EN_VERSION has been removed."
-  exit 2
+  exit 3
 fi
 
-# Last commit for the localized file
+# Last commit for the localized path
 LASTCOMMIT=`git log -n 1 --pretty=format:%h -- $LOCALIZED`
 
-git diff --exit-code $LASTCOMMIT...HEAD $EN_VERSION
+git diff --exit-code $EXTRA_FLAGS $LASTCOMMIT...HEAD $EN_VERSION
 
 if [ "$?" -eq 0 ]; then
   echo "$LOCALIZED is still in sync"