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README.md

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+# png2icns
+English | [中文](README_zh_CN.md)
+
+
+A shell script and an app are provided for you to easily
+generate an icns file with a png image in macOS.
+
+## Notice
+
+Both tools use built-in tools in the terminal in macOS.  
+You can check these paths below to see if they are already exist and executable. 
+
+```
+sips: /usr/bin/sips
+iconutil: /usr/bin/iconutil
+```  
+
+The size of your source image should be suitable for an icon, which is better to be 1024x1024 pixels.   
+The `sample.png` is provided for testing.
+
+## Usage
+
+### 1. png2icns.sh  
+Simply run the `png2icns.sh` and then **specify** the path to your source png image. The icns flie will be generated and saved on your **desktop**.
+
+```
+$ cd png2icns
+$ chmod u+x png2icns.sh
+$ ./png2icns.sh
+Please enter the path to your source PNG image: [path your source png]
+```
+
+### 2. IconTool.app
+Open the dmg file, then drag the `IconTool.app` to Applications and click to run.  
+Just simply choose a png image and the icns flie will be generated and saved on your **desktop**.  
+This app is created using the `Automator.app` in macOS.
+

README_zh_CN.md

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+# png2icns
+[English](README.md) | 中文
+
+
+这里提供了两种工具*(shell脚本和app)*可帮助你在macOS系统上轻松的将一个png图标生成为.icns的图标文件。
+
+## 注意事项
+
+这两个工具均使用了macOS系统内置的工具进行格式转换。你可以在系统中事先检查以下两个工具是否存在并且可被执行。
+
+```
+sips: /usr/bin/sips
+iconutil: /usr/bin/iconutil
+```  
+
+源png图片应尺寸合适且清晰，最好为1024x1024像素大小。   
+这里提供了一个`sample.png`可用来测试。
+
+## 使用方法
+
+### 1. png2icns.sh  
+只需简单地运行`png2icns.sh`脚本，并**指定**源png图片的路径，生成的.icns文件将会被保存在你的**桌面**。
+
+```
+$ cd png2icns
+$ chmod u+x png2icns.sh
+$ ./png2icns.sh
+Please enter the path to your source PNG image: [path your source png]
+```
+
+### 2. IconTool.app
+打开dmg镜像文件，将`IconTool.app`拖入到应用程序中，点击运行即可。   
+选择好源png文件后程序自动运行，生成的.icns文件将会被保存在你的**桌面**。  
+此app是由macOS中自带的`Automator.app（自动操作）`创建。
+

png2icns.sh

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+#! /bin/bash
+
+if [ ! -x "/usr/bin/sips" ]; then
+    echo "失败：未找到可执行的SIPS "
+	echo "Failed: Cannot find required SIPS executable at: /usr/bin/sips "
+	exit;
+fi
+if [ ! -x "/usr/bin/iconutil" ]; then
+    echo "失败：未找到可执行的ICONUTIL "
+	echo "Failed: Cannot find required ICONUTIL executable at: /usr/bin/iconutil "
+	exit;
+fi
+
+read -p "Please enter the path to your source PNG image:" FILENAME
+
+if [ ! -f "${FILENAME}" ]; then
+    echo "失败：图片未找到！"
+    echo "Failed: Image Not Found!"
+    exit;
+fi
+
+
+if [[ $FILENAME == *.png ]];then
+
+    DIRNAME='icon-'`date +"%Y-%m-%d-%H:%M:%S"`
+    cd /tmp
+    mkdir $DIRNAME
+    cd $DIRNAME
+    cp $FILENAME icon.png
+
+    mkdir icon.iconset
+
+    sips -z 16 16       icon.png --out icon.iconset/icon_16x16.png
+    sips -z 32 32       icon.png --out icon.iconset/[email protected]
+    sips -z 32 32       icon.png --out icon.iconset/icon_32x32.png
+    sips -z 64 64       icon.png --out icon.iconset/[email protected]
+    sips -z 128 128     icon.png --out icon.iconset/icon_128x128.png
+    sips -z 256 256     icon.png --out icon.iconset/[email protected]
+    sips -z 256 256     icon.png --out icon.iconset/icon_256x256.png
+    sips -z 512 512     icon.png --out icon.iconset/[email protected]
+    sips -z 512 512     icon.png --out icon.iconset/icon_512x512.png
+    sips -z 1024 1024   icon.png --out icon.iconset/[email protected]
+
+    iconutil -c icns icon.iconset
+
+    cp icon.icns ~/desktop/$DIRNAME.icns
+    cd ..
+    rm -rf $DIRNAME
+    echo "图标已保存至桌面！"
+    echo "The icon is now on your desktop!"
+
+else
+    echo "注意：请使用PNG格式的文件！"
+    echo "Error: Source image format should be PNG!"
+fi