Move & rename build/sanitize-png-files.sh to tools/resources/optimize-png-files.sh

tools/resources/optimize-png-files.sh

 #!/bin/bash
 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # The optimization code is based on pngslim (http://goo.gl/a0XHg)
 # and executes a similar pipleline to optimize the png file size.
 # The steps that require pngoptimizercl/pngrewrite/deflopt are omitted,
 # but this runs all other processes, including:
 # 1) various color-dependent optimizations using optipng.
@@ skipping 255 matching lines @@
   local file=$1
   local name=$(basename $file)
   # -rem alla removes all ancillary chunks except for tRNS
   pngcrush -d $TMP_DIR -brute -reduce -rem alla $file > /dev/null
 
   if [ $OPTIMIZE_LEVEL != 0 ]; then
     optimize_size $TMP_DIR/$name
   fi
 }
 
-# Usage: sanitize_file <file>
-function sanitize_file {
+# Usage: optimize_file <file>
+function optimize_file {
   local file=$1
   local name=$(basename $file)
   local old=$(stat -c%s $file)
   local tmp_file=$TMP_DIR/$name
 
   process_file $file
 
   local new=$(stat -c%s $tmp_file)
   let diff=$old-$new
   let percent=($diff*100)/$old
   let TOTAL_FILE+=1
 
   tput el
   if [ $new -lt $old ]; then
     echo -ne "$file : $old => $new ($diff bytes : $percent %)\n"
     mv "$tmp_file" "$file"
     let TOTAL_OLD_BYTES+=$old
     let TOTAL_NEW_BYTES+=$new
     let PROCESSED_FILE+=1
   else
     if [ $OPTIMIZE_LEVEL == 0 ]; then
       echo -ne "$file : skipped\r"
     fi
     rm $tmp_file
   fi
 }
 
-function sanitize_dir {
+function optimize_dir {
   local dir=$1
   for f in $(find $dir -name "*.png"); do
     if $using_cygwin ; then
-      sanitize_file $(cygpath -w $f)
+      optimize_file $(cygpath -w $f)
     else
-      sanitize_file $f
+      optimize_file $f
     fi
   done
 }
 
 function install_if_not_installed {
   local program=$1
   local package=$2
   which $program > /dev/null 2>&1
   if [ "$?" != "0" ]; then
     if $using_cygwin ; then
-      echo "Couldn't find $program.  Please run setup.exe and install the $package package."
+      echo "Couldn't find $program. " \
+           "Please run cygwin's setup.exe and install the $package package."
       exit 1
     else
       read -p "Couldn't find $program. Do you want to install? (y/n)"
       [ "$REPLY" == "y" ] && sudo apt-get install $package
       [ "$REPLY" == "y" ] || exit
     fi
   fi
 }
 
 function fail_if_not_installed {
@@ skipping 76 matching lines @@
 
 # Create tmp directory for crushed png file.
 TMP_DIR=$(mktemp -d)
 if $using_cygwin ; then
   TMP_DIR=$(cygpath -w $TMP_DIR)
 fi
 
 # Make sure we cleanup temp dir
 trap "rm -rf $TMP_DIR" EXIT
 
-# If no directories are specified, sanitize all directories.
+# If no directories are specified, optimize all directories.
 DIRS=$@
 set ${DIRS:=$ALL_DIRS}
 
 echo "Optimize level=$OPTIMIZE_LEVEL"
 for d in $DIRS; do
   if $using_cygwin ; then
     d=$(cygpath -w $d)
   fi
-  echo "Sanitizing png files in $d"
-  sanitize_dir $d
+  echo "Optimizing png files in $d"
+  optimize_dir $d
   echo
 done
 
 # Print the results.
 if [ $PROCESSED_FILE == 0 ]; then
   echo "Did not find any files (out of $TOTAL_FILE files)" \
        "that could be optimized" \
        "in $(date -u -d @$SECONDS +%T)s"
 else
   let diff=$TOTAL_OLD_BYTES-$TOTAL_NEW_BYTES
   let percent=$diff*100/$TOTAL_OLD_BYTES
   echo "Processed $PROCESSED_FILE files (out of $TOTAL_FILE files)" \
        "in $(date -u -d @$SECONDS +%T)s"
   echo "Result : $TOTAL_OLD_BYTES => $TOTAL_NEW_BYTES bytes" \
        "($diff bytes : $percent %)"
 fi