mdserver-web/plugins/swap/index.py

# coding:utf-8

import sys
import io
import os
import time

sys.path.append(os.getcwd() + "/class/core")
import mw

app_debug = False
if mw.isAppleSystem():
    app_debug = True


def getPluginName():
    return 'swap'


def getPluginDir():
    return mw.getPluginDir() + '/' + getPluginName()


def getServerDir():
    return mw.getServerDir() + '/' + getPluginName()


def getInitDFile():
    if app_debug:
        return '/tmp/' + getPluginName()
    return '/etc/init.d/' + getPluginName()


def getConf():
    path = getPluginDir() + "/config/redis.conf"
    return path


def getInitDTpl():
    path = getPluginDir() + "/init.d/" + getPluginName() + ".tpl"
    return path


def getArgs():
    args = sys.argv[2:]
    tmp = {}
    args_len = len(args)

    if args_len == 1:
        t = args[0].strip('{').strip('}')
        t = t.split(':')
        tmp[t[0]] = t[1]
    elif args_len > 1:
        for i in range(len(args)):
            t = args[i].split(':')
            tmp[t[0]] = t[1]

    return tmp


def status():
    data = mw.execShell("free -m|grep Swap|awk '{print $2}'")
    if data[0] == '0':
        return 'stop'
    return 'start'


def initDreplace():

    file_tpl = getInitDTpl()
    service_path = os.path.dirname(os.getcwd())

    initD_path = getServerDir() + '/init.d'
    if not os.path.exists(initD_path):
        os.mkdir(initD_path)
    file_bin = initD_path + '/' + getPluginName()

    # initd replace
    content = mw.readFile(file_tpl)
    content = content.replace('{$SERVER_PATH}', service_path)
    mw.writeFile(file_bin, content)
    mw.execShell('chmod +x ' + file_bin)

    # config replace
    conf_content = mw.readFile(getConf())
    conf_content = conf_content.replace('{$SERVER_PATH}', service_path)
    mw.writeFile(getServerDir() + '/redis.conf', conf_content)

    return file_bin


def start():
    file = initDreplace()
    data = mw.execShell(file + ' start')
    if data[1] == '':
        return 'ok'
    return 'fail'


def stop():
    file = initDreplace()
    data = mw.execShell(file + ' stop')
    if data[1] == '':
        return 'ok'
    return 'fail'


def restart():
    file = initDreplace()
    data = mw.execShell(file + ' restart')
    log_file = getServerDir() + "/data/redis.log"
    mw.execShell("echo '' > " + log_file)
    if data[1] == '':
        return 'ok'
    return 'fail'


def reload():
    file = initDreplace()
    data = mw.execShell(file + ' reload')
    if data[1] == '':
        return 'ok'
    return 'fail'


def initdStatus():
    if not app_debug:
        if mw.isAppleSystem():
            return "Apple Computer does not support"
    initd_bin = getInitDFile()
    if os.path.exists(initd_bin):
        return 'ok'
    return 'fail'


def initdInstall():
    import shutil
    if not app_debug:
        if mw.isAppleSystem():
            return "Apple Computer does not support"

    source_bin = initDreplace()
    initd_bin = getInitDFile()
    shutil.copyfile(source_bin, initd_bin)
    mw.execShell('chmod +x ' + initd_bin)
    mw.execShell('chkconfig --add ' + getPluginName())
    return 'ok'


def initdUinstall():
    if not app_debug:
        if mw.isAppleSystem():
            return "Apple Computer does not support"

    mw.execShell('chkconfig --del ' + getPluginName())
    initd_bin = getInitDFile()
    os.remove(initd_bin)
    return 'ok'

if __name__ == "__main__":
    func = sys.argv[1]
    if func == 'status':
        print status()
    elif func == 'start':
        print start()
    elif func == 'stop':
        print stop()
    elif func == 'restart':
        print restart()
    elif func == 'reload':
        print reload()
    elif func == 'initd_status':
        print initdStatus()
    elif func == 'initd_install':
        print initdInstall()
    elif func == 'initd_uninstall':
        print initdUinstall()
    elif func == 'conf':
        print getConf()
    else:
        print 'error'