Jenkinsfile使用checkout scm命令从链接的Bitbucket存储库中检索最新提交。

为了使Jenkinsfile能够从源存储库中提取repositorySlug和projectKey作为变量，然后将这些变量作为控制台输出打印出来，需要向Jenkinsfile中添加什么特定的语法？**

样本Jenkinsfile：

我尝试将Jenkins Pipeline SCM步骤文档中的想法纳入以下示例Jenkinsfile中，其结果日志将在下面进一步显示：

node {
    // Clean workspace before doing anything
    deleteDir()

    try {
        stage ('Clone') {
            def commitHash = checkout(scm).GIT_COMMIT
            sh "echo 'Commit hash is: ${commitHash}'"
            println commitHash

            def repName = checkout(scm).repoName
            sh "echo 'Repository Name is: ${repName}'"
            println repName

            def rep = checkout(scm).repo
            sh "echo 'Repository is: ${rep}'"
            println rep

            def nm = checkout(scm).name
            sh "echo 'Name is: ${nm}'"
            println nm
        }
    } catch (err) {
        currentBuild.result = 'FAILED'
        throw err
    }
}

电流输出：

这是Jenkins在运行前面的Jenkinsfile时生成的控制台输出：

General SCM<1s
echo 'Commit hash is: bd279b90ad9f78ee8abb4d4fbf2a621d42150dd3'— Shell Script<1s
bd279b90ad9f78ee8abb4d4fbf2a621d42150dd3— Print Message<1s
General SCM<1s
    > git rev-parse --is-inside-work-tree # timeout=10
    Fetching changes from the remote Git repository
     > git config remote.origin.url http://<bitbucket-ip-on-lan>:7990/scm/JSP/jenkinsfile-simple-repo.git # timeout=10
    Fetching without tags
    Fetching upstream changes from http://<bitbucket-ip-on-lan>:7990/scm/JSP/jenkinsfile-simple-repo.git
     > git --version # timeout=10
    using GIT_ASKPASS to set credentials 
     > git fetch --no-tags --progress http://<bitbucket-ip-on-lan>:7990/scm/JSP/jenkinsfile-simple-repo.git +refs/heads/sample-issue-branch:refs/remotes/origin/sample-issue-branch
    Checking out Revision bd279b90ad9f78ee8abb4d4fbf2a621d42150dd3 (sample-issue-branch)
     > git config core.sparsecheckout # timeout=10
     > git checkout -f bd279b90ad9f78ee8abb4d4fbf2a621d42150dd3
    Commit message: "name"
    [Bitbucket] Notifying commit build result
echo 'Repository Name is: null'— Shell Script<1s
null— Print Message<1s
General SCM<1s
echo 'Repository is: null'— Shell Script<1s
null— Print Message<1s
General SCM<1s
echo 'Name is: null'— Shell Script<1s
null— Print Message<1s

请注意，projectKey和repositorySlug可以在上面的日志中以以下形式使用：

http://<bitbucket-ip-on-lan>:7990/scm/JSP/jenkinsfile-simple-repo.git

重述的问题：

对于上面的数据，需要将什么特定语法添加到Jenkins文件中，以使生成的Jenkins日志打印出以下内容：

The projectKey is: JSP
The repositorySlug is: jenkinsfile-simple-repo