Work with filenames that include spaces

• Simplified the stat generation line (single exec using only stat)
• Quote variables so that the cache directory can also include spaces
• while/read loop to handle spaces in cached files
  (IFS was causing problems when all the files were saved into a single variable)

test/sample_delcache.sh

@@ -34,60 +34,59 @@ if [ "X$1" = "X-h" -o "X$1" = "X-H" ]; then
 fi
 if [ "X$1" = "X" -o "X$2" = "X" -o "X$3" = "X" ]; then
   func_usage $PRGNAME
-  exit -1
+  exit 1
 fi
 
 BUCKET=$1
-CDIR=$2
+CDIR="$2"
 LIMIT=$3
 SILENT=0
 if [ "X$4" = "X-silent" ]; then
   SILENT=1
 fi
-FILES_CDIR=$CDIR/$BUCKET
-STATS_CDIR=$CDIR/\.$BUCKET\.stat
-
+FILES_CDIR="${CDIR}/${BUCKET}"
+STATS_CDIR="${CDIR}/.${BUCKET}.stat"
+CURRENT_CACHE_SIZE=`du -sb "$FILES_CDIR" | awk '{print $1}'`
 #
 # Check total size
 #
-if [ $LIMIT -ge `du -sb $FILES_CDIR | awk '{print $1}'` ]; then
+if [ $LIMIT -ge $CURRENT_CACHE_SIZE ]; then
   if [ $SILENT -ne 1 ]; then
-    echo "$FILES_CDIR is below allowed $LIMIT"
+    echo "$FILES_CDIR ($CURRENT_CACHE_SIZE) is below allowed $LIMIT"
   fi
   exit 0
 fi
 
-#
-# Make file list by sorted access time
-#
-ALL_STATS_ATIMELIST=`find $STATS_CDIR -type f -exec echo -n {} \; -exec echo -n " " \; -exec stat -c %X {} \; | awk '{print $2":"$1}' | sort`
-
 #
 # Remove loop
 #
 TMP_ATIME=0
 TMP_STATS=""
 TMP_CFILE=""
-for part in $ALL_STATS_ATIMELIST; do
-  TMP_ATIME=`echo $part | sed 's/\:/ /' | awk '{print $1}'`
-  TMP_STATS=`echo $part | sed 's/\:/ /' | awk '{print $2}'`
-  TMP_CFILE=`echo $TMP_STATS | sed s/\.$BUCKET\.stat/$BUCKET/`
-
-  if [ `stat -c %X $TMP_STATS` -eq $TMP_ATIME ]; then
-    rm -f $TMP_STATS $TMP_CFILE > /dev/null 2>&1
+#
+# Make file list by sorted access time
+#
+find "$STATS_CDIR" -type f -exec stat -c "%X:%n" "{}" \; | sort | while read part
+do
+  echo Looking at $part
+  TMP_ATIME=`echo "$part" | cut -d: -f1`
+  TMP_STATS="`echo "$part" | cut -d: -f2`"
+  TMP_CFILE=`echo "$TMP_STATS" | sed s/\.$BUCKET\.stat/$BUCKET/`
+
+  if [ `stat -c %X "$TMP_STATS"` -eq $TMP_ATIME ]; then
+    rm -f "$TMP_STATS" "$TMP_CFILE" > /dev/null 2>&1
     if [ $? -ne 0 ]; then
       if [ $SILENT -ne 1 ]; then
         echo "ERROR: Could not remove files($TMP_STATS,$TMP_CFILE)"
       fi
-      exit -1
+      exit 1
     else
       if [ $SILENT -ne 1 ]; then
         echo "remove file: $TMP_CFILE	$TMP_STATS"
       fi
     fi
   fi
-
-  if [ $LIMIT -ge `du -sb $FILES_CDIR | awk '{print $1}'` ]; then
+  if [ $LIMIT -ge `du -sb "$FILES_CDIR" | awk '{print $1}'` ]; then
     if [ $SILENT -ne 1 ]; then
       echo "finish removing files"
     fi
@@ -96,7 +95,7 @@ for part in $ALL_STATS_ATIMELIST; do
 done
 
 if [ $SILENT -ne 1 ]; then
-  TOTAL_SIZE=`du -sb $FILES_CDIR | awk '{print $1}'`
+  TOTAL_SIZE=`du -sb "$FILES_CDIR" | awk '{print $1}'`
   echo "Finish: $FILES_CDIR total size is $TOTAL_SIZE"
 fi