#!/bin/python

# build Android application package (.apk) from the command line using the SDK tools

import os

import re

import sys

import time

import shutil

import hashlib

build_root = os.path.dirname(os.path.abspath('__file__'))

build_source_name = 'source'

build_apk_name = 'FullscreenActivity-release.apk'

release_apk_path = build_root + '/release_apks'

publish_apks = build_root + '/publish_apks'

android_sdk = os.environ.get('ANDROID_SDK')

build_tool_ant_path = android_sdk + '/tools/ant'

build_bin_path = 'bin'

build_bin_classes_path = 'classes'

source_dir = build_root + '/' + build_source_name    

rev_cmd = "svn info"

rev_pattern = r"Last Changed Rev: ([0-9]*)"

# delete file folder

def delete_file_folder(src):

    if os.path.isfile(src):

        try:

            os.remove(src)

        except:

            pass

    elif os.path.isdir(src):

        for item in os.listdir(src):

            itemsrc = os.path.join(src,item)

            delete_file_folder(itemsrc)

        try:

            os.rmdir(src)

        except:

            pass

# calc file md5

def calcMD5(filepath):

    with open(filepath,'rb') as f:

        md5obj = hashlib.md5()

        md5obj.update(f.read())

        hash = md5obj.hexdigest()

        return hash

# get source code from svn Repository

def get_source_code():

    if (os.path.exists(release_apk_path)):

        print release_apk_path + ' exists!'

    else:

        os.makedirs(release_apk_path)       

    if (os.path.exists(source_dir)):

        os.chdir(source_dir)

        os.system('svn update')

    else:

        os.makedirs(source_dir)

        os.chdir(source_dir)

        os.system('svn checkout https://github.com/clarck/AutoBuildProject/trunk .')

# clear classes file folder

def clear_classes_folder():

    classes_abs_path = source_dir + '/' + build_bin_classes_path

    if (os.path.exists(classes_abs_path)):

        delete_file_folder(classes_abs_path)

    else:

        os.makedirs(classes_abs_path) 

# get svn revision

def get_revision():

    rev = os.popen(rev_cmd).read()

    m = re.search(rev_pattern, rev)

    if m == None:

        return None

    return m.group(1)

# get current time

def get_time():

    return time.strftime('%Y-%m-%d_%H-%M-%S', time.localtime(time.time()))

# ant build

def ant_build():

    os.system('android update project -p . --target android-19')

    os.system('ant clean & ant release')

# copy apk file to target folder

def copy_apk():

    apk_file = source_dir + '/' + build_bin_path + '/' + build_apk_name

    target_apk_file = release_apk_path + '/' + build_apk_name

    if (os.path.exists(apk_file)):

        shutil.copyfile(apk_file, target_apk_file)

    else:

        print apk_file + ' is not exists!'

# delete source code files

def delete_source_file():

    delete_file_folder(source_dir)

# publish apk

def publish(date, rev):

    if (os.path.exists(publish_apks)):

        print publish_apks + ' exists!'

    else:

        os.makedirs(publish_apks)

    md5 = calcMD5(release_apk_path + '/' + build_apk_name)

    apk_file = release_apk_path + '/' + build_apk_name

    publish_file = publish_apks + '/' + date + '_' + rev + '_' + 'release.apk'

    shutil.move(apk_file, publish_file)

    delete_file_folder(release_apk_path)

# main function

def main():

    get_source_code()

    clear_classes_folder()

    rev = get_revision()

    date = get_time()

    ant_build()

    copy_apk()

    publish(date, rev)    

if __name__ == '__main__':

    main()