git clone https://github.com/hugozhu/mini_raspbian_boot

dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait cgroup_enable=memory

sudo dd bs=1m if=2015-01-31-raspbian.img of=/dev/disk4 #/dev/disk4

/dev/sda1            8192      122879       57344    c  W95 FAT32 (LBA)
/dev/sda2          122880     6399999     3138560   83  Linux

now = os.time()

chat = "树莓派通知" -- telegram的会话名称

safe_commands = {}
safe_commands["uptime"]  = "uptime"
safe_commands["w"]       = "w"
safe_commands["ps"]      = "ps ax"
safe_commands["netstat"] = "netstat -na"
safe_commands["df"]      = "df"
safe_commands["ss"]      = "ss"
safe_commands["free"]    = "free"

function on_msg_receive (msg)
	if msg.out then
	    return
	end
	if msg.text then
		-- mark_read(msg.from.print_name)	
		-- vardump(msg)
		cmd = string.lower(trim(msg.text))
		if cmd == "ping" then
			send_msg (chat, 'pong', ok_cb, false)
		elseif safe_commands[cmd] ~= nil then
			send_msg (chat, exec(safe_commands[cmd]), ok_cb, false)
		end
	end
end

function on_our_id (id)
end
 
function on_secret_chat_created (peer)
end
 
function on_user_update (user)
end
 
function on_chat_update (user)
end
 
function on_get_difference_end ()
end
 
function on_binlog_replay_end ()
end

function exec(cmd)
   local output = ""
   f = assert (io.popen (cmd))
   for line in f:lines() do
     output = output .. "\n" .. line
   end -- for loop
   f:close()
   return output
end	

function trim(s)
  return (s:gsub("^%s*(.-)%s*$", "%1"))
end

function vardump(value, depth, key)
  local linePrefix = ""
  local spaces = ""
  
  if key ~= nil then
    linePrefix = "["..key.."] = "
  end
  
  if depth == nil then
    depth = 0
  else
    depth = depth + 1
    for i=1, depth do spaces = spaces .. "  " end
  end
  
  if type(value) == 'table' then
    mTable = getmetatable(value)
    if mTable == nil then
      print(spaces ..linePrefix.."(table) ")
    else
      print(spaces .."(metatable) ")
        value = mTable
    end		
    for tableKey, tableValue in pairs(value) do
      vardump(tableValue, depth, tableKey)
    end
  elseif type(value)	== 'function' or 
      type(value)	== 'thread' or 
      type(value)	== 'userdata' or
      value		== nil
  then
    print(spaces..tostring(value))
  else
    print(spaces..linePrefix.."("..type(value)..") "..tostring(value))
  end
end

print(exec("uptime"))

wget http://snapshot.raspbian.org/201403301125/raspbian/pool/main/o/openswan/openswan_2.6.37-3_armhf.deb
sudo dpkg -i openswan_2.6.37-3_armhf.deb

sudo iptables -F
sudo iptables -X
sudo iptables -t nat -F
sudo iptables -t nat -X
sudo iptables -t nat -A PREROUTING -s 192.168.3.0/24 -p tcp --dport 80 -j REDIRECT --to-ports 12345 #转发VPN客户端的HTTP流量到端口12345
sudo iptables -t nat -A PREROUTING -s 192.168.3.0/24 -p tcp --dport 443 -j REDIRECT --to-ports 12345 #转发VPN客户端的HTTPS流量到端口12345
sudo iptables -t nat -A POSTROUTING -s 192.168.3.0/24 -o eth0 -j MASQUERADE #转发VPN客户端的TCP流量到网络出口，并进行IP伪装；如果树莓派使用无线网卡则将eth0改成wlan0

apply plugin: 'java'
version = 1.0

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:19.1.0'
    }
}

repositories {
    mavenCentral()
}

dependencies {
    compile project(':<your_library_project>') //此处填写需要打包的Android Library Project name
}

task sync_jars() << {
	 //把所有依赖的.jar库都拷贝到build/aar/libs下
    copy {
        into buildDir.getPath() +"/aar/libs"
        from configurations.compile.findAll {
            it.getName().endsWith(".jar")
        }
    }
}

task sync_aars(dependsOn:':<your_library_project>:assembleRelease') << {
	 //把所有依赖的.aar库里包含的classes.jar都拷贝到build/aar/libs下，并重命名以不被覆盖
    def jar_name
    def aar_path
    def dest_dir = buildDir.getPath()+"/aar"
    configurations.compile.findAll {
        it.getName().endsWith(".aar")
    }.collect {
        aar_path = it.getPath()
        jar_name = "libs/"+it.getName().replace(".aar",".jar")
        copy {
            from zipTree(aar_path)
            into dest_dir
            include "**/*"
            rename 'classes.jar', jar_name
        }
    }
}

task fataar(dependsOn:[sync_aars, sync_jars]) << {
    task (obfuse_classes_jar, type: proguard.gradle.ProGuardTask) {
    	//把build/aar/libs/*.jar混淆后生成build/aar/classes.jar
        configuration "proguard.cfg"
        injars buildDir.getPath()+"/aar/libs"
        outjars buildDir.getPath()+"/aar/classes.jar"
        libraryjars "${System.getProperty('java.home')}/lib/rt.jar"
        libraryjars "${System.getProperty('java.home')}/Contents/Classes/classes.jar"
        libraryjars System.getenv("ANDROID_HOME")+"/platforms/android-19/android.jar"
    }.execute()

    task (gen_aar, type: Zip) {
    	//把生成最终的aar包，注意libs目录需要被排除
        def dest_dir = buildDir.getPath()+"/aar/"
        baseName = "mysdk-all"
        extension = "aar"
        destinationDir = file(buildDir.getPath())
        from dest_dir
        exclude "libs"
    }.execute()
}

android {
    buildTypes {
        release {
            ...
        }

        debug {
            applicationIdSuffix '.debug'
            ...
        }
    }
}

android.applicationVariants.all { variant ->
    def buildType = variant.buildType
    def encoding = java.nio.charset.Charset.defaultCharset().toString()
    if (buildType.applicationIdSuffix) {
        def defaultPackageId = variant.packageName.replaceAll(buildType.applicationIdSuffix,'')
        variant.mergeResources.doLast {
            def dir = file("${buildDir}/intermediates/res/${variant.dirName}/layout")
            dir.listFiles().each { f->
                String content = f.getText(encoding)
                content = content.replaceAll("res/"+defaultPackageId, "res/"+variant.packageName)
                f.write(content, encoding)
            }
        }
    }
}

    <application
    	...
        android:label="@string/app_name" >

android.applicationVariants.all { variant ->
    def buildType = variant.buildType
    def encoding = java.nio.charset.Charset.defaultCharset().toString()
    if (buildType.applicationIdSuffix) {
        def defaultPackageId = variant.packageName.replaceAll(buildType.applicationIdSuffix,'')
        variant.mergeResources.doLast {
            def f = file("${buildDir}/intermediates/res/${variant.dirName}/values/values.xml")
            String content = f.getText(encoding)
            content = content.replaceAll('来往','来往Beta')
            f.write(content,encoding)
        }
    }
}