fix: filename

Author: timurbazhirov

scripts/optimize-png.sh

@@ -0,0 +1,66 @@
+#!/bin/bash
+# Derived from http://www.clock.co.uk/blog/optimise-your-pngs-from-the-terminal-in-osx
+# NOTE: This script will optimize the input png file and rewrites on the same file.
+# Requires:
+#   optipng
+#   On OSX:
+#       brew install optipng
+
+get_script_dir () {
+    SOURCE="${BASH_SOURCE[0]}"
+    # While $SOURCE is a symlink, resolve it
+    while [ -h "$SOURCE" ]; do
+        DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+        SOURCE="$( readlink "$SOURCE" )"
+        # If $SOURCE was a relative symlink (so no "/" as prefix,
+        # need to resolve it relative to the symlink base directory
+        [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE"
+    done
+    DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+    echo "$DIR"
+}
+
+THIS_SCRIPT_DIR=$(get_script_dir)
+
+#
+# Print usage
+#
+usage () {
+    echo "optimize-png.sh [-o{2-7}] -i=image.png"
+    exit 1
+}
+
+#
+# Check arguments passed to the script
+#
+#   Args:
+#       $@: all arguments passed to the script
+#
+check_args () {
+    if [ $# -eq 0 ]; then usage; fi
+    # set default
+    OPTLEVEL="2"
+    for i in "$@"
+    do
+        echo $i
+        case $i in
+            -i=*|--input=*)
+                INPUT="${i#*=}"
+                shift
+            ;;
+            -o=*|--optlevel=*)
+                OPTLEVEL="${i#*=}"
+                shift
+            ;;
+            *)
+                usage
+            ;;
+        esac
+    done
+}
+
+#
+check_args $@
+
+# Optimize the input png
+optipng -o${OPTLEVEL} $INPUT