快速获取Jenkins上build

很多公司都会做CI持续集成，一般CI都用Jenkins.如何快速获取Jenkins 上的build?

一般公司都会有CI服务器，各个项目build都在上面触发或生成。
如何快速获取CI服务器上最新的build呢？

有的人可能想到爬虫，当然爬虫可以做到，但是比较复杂，还要判断最新的build是否是success.

其实不用这么麻烦，Jenkins提供了一些接口，直接用接口就能获得build相关的信息。例如：

http://$host/job/$jobname/lastSuccessfulBuild/api/json

• lastBuild,
• lastStableBuild,
• lastSuccessfulBuild,
• lastFailedBuild,
• lastUnstableBuild,
• lastUnsuccessfulBuild,
• lastCompletedBuild

用得较多的是lastSuccessfulBuild, 当然也可以获取失败的build来分析构建失败的原因。

举个例子，我们android 在CI 上build 并且archive APK 文件。
那么我们就可以很轻松的得到想要的build.
如果我用UI的automation test来做BVT，那么代码可以这样写

from globals import *
import requests, re, os
import shutil
from ptest.plogger import preporter

JENKINS_HOST_ANDROID = "XXX"
current_dir = os.path.split(os.path.realpath(__file__))[0]
apk_path = current_dir + "/apk/"
build_name = "XXX"


class Jenkins:
    def __init__(self):
        self.Jenkins_build_url = JENKINS_HOST_ANDROID + "/job/{0}/lastSuccessfulBuild/api/json".format(
            current_device_info.jenkins_job)

    def get_build_url(self):
        preporter.info(self.Jenkins_build_url)
        builds_urls = requests.get(self.Jenkins_build_url)

        builds = [each_build['relativePath'] for each_build in builds_urls.json()['artifacts']]
        preporter.info(builds)
        current_build = re.findall(
            "/build/outputs/apk/{}-{}-{}.*?.apk".format(build_name,
                                                                     current_device_info.device_env,
                                                                     current_device_info.build_type), ','.join(builds))

        preporter.info(current_build)

        if current_build:
            apk_url = builds_urls.json()['url'] + "artifact/" + current_build[0]
            apk_name = current_build[0].split("/")[-1]
            preporter.info(apk_url)
            preporter.info(apk_name)
            return apk_url, apk_name

        else:
            preporter.info("cannot find the build ")

    def check_folder(sef, folder):
        if os.path.exists(folder):
            shutil.rmtree(folder)
        os.makedirs(folder)

    def download_file(self, url, path):
        file = requests.get(url).content
        with open(path, 'wb') as f:
            f.write(file)

    def download_build(self):
        apk_url, apk_name = self.get_build_url()
        self.check_folder(apk_path)
        self.download_file(apk_url, apk_path + apk_name)

很容易就获取的最新的daily build.
结合build,就可以做其它的自动化测试了。

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