Git学习-->关于Jenkins编译时候，如何获取Git分支的当前分支名？
一、背景 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 /** * 获取Git 分支名 */ def getGitBranch() { return 'git symbolic-ref --short -q HEAD'.execute().text.trim() } /** * 获取Git 版本号 */ def getGitSHA() { return 'git rev-parse --short HEAD'.execute().text.trim() } /** * 获取Git Tag */ 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) { //it's 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。 但是在Jenkins编译的时候，是不能够上传的，如下所示： 二、解决方法 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 D:\GitLab Source\XTCLint>git symbolic-ref --short -q HEAD master D:\GitLab Source\XTCLint> 方法2、git rev-parse --abbrev-ref HEAD D:\GitLab Source\XTCLint>git rev-parse --abbrev-ref HEAD master 方法3、git branch | grep \* | cut -d ' ' -f2 D:\GitLab Source\XTCLint>git branch | grep \* | cut -d ' ' -f2 master 方法4、git symbolic-ref HEAD | sed -e "s/^refs\/heads\///" D:\GitLab Source\XTCLint>git symbolic-ref HEAD | sed -e "s/^refs\/heads\///" master 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 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： 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。 $DEFAULT_CONTENT <br /> <font color="#0B610B">单元测试</font> <li>Launcher单元测试报告 ：<a href="${BUILD_URL}testReport">点击查看测试报告</a></li> <li>Launcher代码覆盖率 ：<a href="${BUILD_URL}jacoco">点击查看代码覆盖率</a></li> <li>Launcher Android Lint ：<a href="${BUILD_URL}androidLintResult">点击查看Android Lint</a></li> <br /> <li>GIT_COMMIT ：${GIT_COMMIT}</a></li> <li>GIT_BRANCH ：${GIT_BRANCH}</a></li> <li>GIT_LOCAL_BRANCH ：${GIT_LOCAL_BRANCH}</a></li> <li>GIT_PREVIOUS_COMMIT ：${GIT_PREVIOUS_COMMIT}</a></li> <li>GIT_PREVIOUS_SUCCESSFUL_COMMIT ：${GIT_PREVIOUS_SUCCESSFUL_COMMIT}</a></li> <li>GIT_URL ：${GIT_URL}</a></li> <li>GIT_URL_N ：${GIT_URL_N}</a></li> <li>GIT_AUTHOR_NAME ：${GIT_AUTHOR_NAME}</a></li> <li>GIT_COMMITTER_NAME ：${GIT_COMMITTER_NAME}</a></li> <li>GIT_AUTHOR_EMAIL ：${GIT_AUTHOR_EMAIL}</a></li> <li> GIT_COMMITTER_EMAIL ：${ GIT_COMMITTER_EMAIL}</a></li> 这样编译完后，收到的邮件内容如下： 如上所示，收到的邮件内容包含了Git的相关信息： GIT_COMMIT ：118fa74e6a09c8c5ae713523692add256bfa6afb GIT_BRANCH ：origin/feature/UseByAnonymousDBMigrateAndApiChange GIT_LOCAL_BRANCH ：${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。 /** * 获取Git 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： /** * 获取Git 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() } } /** * 获取Git 版本号 */ def getGitSHA() { return 'git rev-parse --short HEAD'.execute().text.trim() } /** * 获取Git Tag */ 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) { //it's 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。 参考链接 https://wiki.jenkins.io/display/JENKINS/Git+Plugin https://stackoverflow.com/questions/6245570/how-to-get-the-current-branch-name-in-git 作者：欧阳鹏 欢迎转载，与人分享是进步的源泉！ 转载请保留原文地址：http://blog.csdn.net/ouyang_peng/article/details/77802596 如果觉得本文对您有所帮助，欢迎您扫码下图所示的支付宝和微信支付二维码对本文进行随意打赏。您的支持将鼓励我继续创作！
