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Git学习-->关于Jenkins编译时候，如何获取Git分支的当前分支名？

ampJenkinsGit学习 如何 获取 关于 编译
2023-09-27 14:29:23 时间

因为代码都迁移到了Gitlab，所以Jenkins编译的时候我们都需要将之前的SVN信息换成现在的Git信息。最近编译一个Lib库的时候，因为团队规定上传Release版本的AAR到Maven的话，必须需要在Jenkins上编译而且Git Branch 必须是master分支才能够上传到Maven。
因此我们就需要在Gradle脚本中，获取Git Branch ,Git Commit等相关信息。但是在获取Git Branch的时候出现了问题，在本地Android Studio编译的时候能够获取到Git Branch的名字，但是使用Jenkins编译的时候，一直获取不到信息。

下面是我写的一份gradle文件，用于获取Git和Jenkins的相关信息


def getGitTag() { return git describe --tags.execute([], project.rootDir).text.trim() * 获取Git 提交次数 def getGitCommitCount() { return 100 + Interger.parse(git rev-list --count HEAD.execute([], project.rootDir).text.trim()) * 判断是否有jenkins boolean isInJenkins() { Map String, String map = System.getenv() if (map == null) { return false String str = map.get("Path") if (str != null) { //its windows return false } else { str = "" Iterator it = map.iterator() while (it.hasNext()) { str += it.next() return str.contains("jenkins") * 获取jenkins任务名 def getJenkinsName() { boolean flag = isInJenkins() if (flag) { ext.env = System.getenv() ext.name = env.JOB_URL String[] stringArray = ext.name.split("/") if (stringArray.length 0) { return stringArray[stringArray.length - 1] } else { return "Local" } else { return "Local" * 获取Jenkins Build 号 * @return def getJenkinsBuildCode() { boolean flag = isInJenkins() if (flag) { ext.env = System.getenv() ext.buildNumber = env.BUILD_NUMBER?.toInteger() return "$buildNumber" } else { return 0 * 定义几个变量，在build.gradle里面引用 ext { gitTag = getGitTag() gitBranch = getGitBranch() gitSHA = getGitSHA() jenkinsRevision = getJenkinsBuildCode() jenkinsName = getJenkinsName()

其中的方法，getGitBranch方法在Android Studio编译的时候，能够正常获取到Git分支名。


 println "pom_version_type = " + pom_version_type

 println "jenkinsName = " + jenkinsName

 println "gitBranch = " + gitBranch

我在进行编译的时候，是会通过如上代码打印出Git Branch的信息。

在Android Studio 本地编译的时候，是可以打印出相关的信息的。

这里写图片描述

但是在Jenkins编译的时候，是不能够上传的，如下所示：
这里写图片描述


后来我尝试找了很多种方法去获取Git Branch的名字，在Android Studio本地都可以获取到，如下所示：

参考链接：https://stackoverflow.com/questions/6245570/how-to-get-the-current-branch-name-in-git

方法1、git symbolic-ref --short -q HEAD


以上所有的方法，仅仅在Android Studio的终端或者本地gradle代码中有效，然而在Jenkins服务器编译的时候都是获取为空。


后来我查看了Jenkins的Git插件上的介绍，参考链接：https://wiki.jenkins.io/display/JENKINS/Git+Plugin

这里写图片描述

如上所示，在上面的链接中有介绍，有几个Environment variables环境变量可以使用。

Environment variables

The git plugin sets several environment variables you can use in your scripts:


GIT_COMMIT - SHA of the current GIT_BRANCH - Name of the remote repository (defaults to origin), followed by name of the branch currently being used, e.g. “origin/master” or “origin/foo” GIT_LOCAL_BRANCH - Name of the branch on Jenkins. When the “checkout to specific local branch” behavior is configured, the variable is published. If the behavior is configured as null or **, the property will contain the resulting local branch name sans the remote name. GIT_PREVIOUS_COMMIT - SHA of the previous built commit from the same branch (the current SHA on first build in branch) GIT_PREVIOUS_SUCCESSFUL_COMMIT - SHA of the previous successfully built commit from the same branch. GIT_URL - Repository remote URL GIT_URL_N - Repository remote URLs when there are more than 1 remotes, e.g. GIT_URL_1, GIT_URL_2 GIT_AUTHOR_NAME and GIT_COMMITTER_NAME - The name entered if the “Custom user name/e-mail address” behaviour is enabled; falls back to the value entered in the Jenkins system config under “Global Config user.name Value” (if any) GIT_AUTHOR_EMAIL and GIT_COMMITTER_EMAIL - The email entered if the “Custom user name/e-mail address” behaviour is enabled; falls back to the value entered in the Jenkins system config under “Global Config user.email Value” (if any)

然后我将这几个变量，在一个app的Jenkins任务中，编译完成后的邮件内容中添加了这几个变量的内容，如下所示：

这里写图片描述

在构建后的操作中，Editable Email Notification的邮件通知中，将邮件内容改为如下所示的代码。


font color="#0B610B" 单元测试 /font li Launcher单元测试报告 nbsp;： a href="${BUILD_URL}testReport" 点击查看测试报告 /a /li li Launcher代码覆盖率 nbsp;： a href="${BUILD_URL}jacoco" 点击查看代码覆盖率 /a /li li Launcher Android Lint nbsp;： a href="${BUILD_URL}androidLintResult" 点击查看Android Lint /a /li
li GIT_BRANCH nbsp;：${GIT_BRANCH} /a /li li GIT_LOCAL_BRANCH nbsp;：${GIT_LOCAL_BRANCH} /a /li li GIT_PREVIOUS_COMMIT nbsp;：${GIT_PREVIOUS_COMMIT} /a /li li GIT_PREVIOUS_SUCCESSFUL_COMMIT nbsp;：${GIT_PREVIOUS_SUCCESSFUL_COMMIT} /a /li li GIT_URL nbsp;：${GIT_URL} /a /li li GIT_URL_N nbsp;：${GIT_URL_N} /a /li li GIT_AUTHOR_NAME nbsp;：${GIT_AUTHOR_NAME} /a /li li GIT_COMMITTER_NAME nbsp;：${GIT_COMMITTER_NAME} /a /li li GIT_AUTHOR_EMAIL nbsp;：${GIT_AUTHOR_EMAIL} /a /li li GIT_COMMITTER_EMAIL nbsp;：${ GIT_COMMITTER_EMAIL} /a /li

这样编译完后，收到的邮件内容如下：
这里写图片描述

如上所示，收到的邮件内容包含了Git的相关信息：


GIT_COMMIT ：118fa74e6a09c8c5ae713523692add256bfa6afb

GIT_BRANCH ：origin/feature/UseByAnonymousDBMigrateAndApiChange

GIT_LOCAL_BRANCH ：${GIT_LOCAL_BRANCH}

GIT_PREVIOUS_COMMIT ：118fa74e6a09c8c5ae713523692add256bfa6afb

GIT_PREVIOUS_SUCCESSFUL_COMMIT ：118fa74e6a09c8c5ae713523692add256bfa6afb

GIT_URL ：git@172.28.1.116:Android/WatchApp/Third/NetEaseCloudMusic.git

GIT_URL_N ：${GIT_URL_N}

GIT_AUTHOR_NAME ：${GIT_AUTHOR_NAME}

GIT_COMMITTER_NAME ：${GIT_COMMITTER_NAME}

GIT_AUTHOR_EMAIL ：${GIT_AUTHOR_EMAIL}

GIT_COMMITTER_EMAIL ：${ GIT_COMMITTER_EMAIL}

其中，GIT_BRANCH这个环境变量的值为origin/feature/UseByAnonymousDBMigrateAndApiChange，代表Jenkins上/UseByAnonymousDBMigrateAndApiChange分支远程Gitlab上该分支映射的远程分支。因此我们可以对GIT_BRANCH这个环境变量做做文章。

将之前gradle脚本中的getGitBranch方法，做如下修改，区分编译环境是Jenkins还是本地。环境不同，运行不同的脚本获取Git Branch的名字。当处于Jenkins环境的时候，先通过GIT_BRANCH这个环境变量获取到Jenkins拉下来的分支对应的远程分支，然后通过字符串分离，获取到分支名。


*参考Jenkins git 创建文档： https://wiki.jenkins.io/display/JENKINS/Git+Plugin * Environment variables The git plugin sets several environment variables you can use in your scripts: GIT_COMMIT - SHA of the current GIT_BRANCH - Name of the remote repository (defaults to origin), followed by name of the branch currently being used, e.g. "origin/master" or "origin/foo" GIT_LOCAL_BRANCH - Name of the branch on Jenkins. When the "checkout to specific local branch" behavior is configured, the variable is published. If the behavior is configured as null or **, the property will contain the resulting local branch name sans the remote name. GIT_PREVIOUS_COMMIT - SHA of the previous built commit from the same branch (the current SHA on first build in branch) GIT_PREVIOUS_SUCCESSFUL_COMMIT - SHA of the previous successfully built commit from the same branch. GIT_URL - Repository remote URL GIT_URL_N - Repository remote URLs when there are more than 1 remotes, e.g. GIT_URL_1, GIT_URL_2 GIT_AUTHOR_NAME and GIT_COMMITTER_NAME - The name entered if the "Custom user name/e-mail address" behaviour is enabled; falls back to the value entered in the Jenkins system config under "Global Config user.name Value" (if any) GIT_AUTHOR_EMAIL and GIT_COMMITTER_EMAIL - The email entered if the "Custom user name/e-mail address" behaviour is enabled; falls back to the value entered in the Jenkins system config under "Global Config user.email Value" (if any) def getGitBranch() { //判断是否处于Jenkins编译环境 boolean flag = isInJenkins() if (flag) { ext.env = System.getenv() ext.gitBranch = env.GIT_BRANCH String[] stringArray = ext.gitBranch.split("/") if (stringArray.length 0) { return stringArray[stringArray.length - 1] } else { return "UnKnown Branch" } else { return git symbolic-ref --short -q HEAD.execute().text.trim() }

完整代码如下所示：


*参考Jenkins git 创建文档： https://wiki.jenkins.io/display/JENKINS/Git+Plugin * Environment variables The git plugin sets several environment variables you can use in your scripts: GIT_COMMIT - SHA of the current GIT_BRANCH - Name of the remote repository (defaults to origin), followed by name of the branch currently being used, e.g. "origin/master" or "origin/foo" GIT_LOCAL_BRANCH - Name of the branch on Jenkins. When the "checkout to specific local branch" behavior is configured, the variable is published. If the behavior is configured as null or **, the property will contain the resulting local branch name sans the remote name. GIT_PREVIOUS_COMMIT - SHA of the previous built commit from the same branch (the current SHA on first build in branch) GIT_PREVIOUS_SUCCESSFUL_COMMIT - SHA of the previous successfully built commit from the same branch. GIT_URL - Repository remote URL GIT_URL_N - Repository remote URLs when there are more than 1 remotes, e.g. GIT_URL_1, GIT_URL_2 GIT_AUTHOR_NAME and GIT_COMMITTER_NAME - The name entered if the "Custom user name/e-mail address" behaviour is enabled; falls back to the value entered in the Jenkins system config under "Global Config user.name Value" (if any) GIT_AUTHOR_EMAIL and GIT_COMMITTER_EMAIL - The email entered if the "Custom user name/e-mail address" behaviour is enabled; falls back to the value entered in the Jenkins system config under "Global Config user.email Value" (if any) def getGitBranch() { //判断是否处于Jenkins编译环境 boolean flag = isInJenkins() if (flag) { ext.env = System.getenv() ext.gitBranch = env.GIT_BRANCH String[] stringArray = ext.gitBranch.split("/") if (stringArray.length 0) { return stringArray[stringArray.length - 1] } else { return "UnKnown Branch" } else { return git symbolic-ref --short -q HEAD.execute().text.trim()
def getGitTag() { return git describe --tags.execute([], project.rootDir).text.trim() * 获取Git 提交次数 def getGitCommitCount() { return 100 + Interger.parse(git rev-list --count HEAD.execute([], project.rootDir).text.trim()) * 判断是否有jenkins boolean isInJenkins() { Map String, String map = System.getenv() if (map == null) { return false String str = map.get("Path") if (str != null) { //its windows return false } else { str = "" Iterator it = map.iterator() while (it.hasNext()) { str += it.next() return str.contains("jenkins") * 获取jenkins任务名 def getJenkinsName() { boolean flag = isInJenkins() if (flag) { ext.env = System.getenv() ext.name = env.JOB_URL String[] stringArray = ext.name.split("/") if (stringArray.length 0) { return stringArray[stringArray.length - 1] } else { return "Local" } else { return "Local" * 获取Jenkins Build 号 * @return def getJenkinsBuildCode() { boolean flag = isInJenkins() if (flag) { ext.env = System.getenv() ext.buildNumber = env.BUILD_NUMBER?.toInteger() return "$buildNumber" } else { return 0 * 定义几个变量，在build.gradle里面引用 ext { gitTag = getGitTag() gitBranch = getGitBranch() gitSHA = getGitSHA() jenkinsRevision = getJenkinsBuildCode() jenkinsName = getJenkinsName()

现在测试下Jenkins编译是否正常，可以看到一切都正常了。

这里写图片描述


作者：欧阳鹏 欢迎转载，与人分享是进步的源泉！
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