在 Multibranch Pipeline 项目中触发相关作业

Question

我正在使用多分支管道项目来构建我的应用程序。我们有大约 100 多个组件和许多管道项目。所以说例如我们有：

项目A依赖→项目B依赖→项目C

我们对所有这些作业都使用 SCM 轮询。我希望一旦我构建了项目C，就应该构建项目B，然后应该构建项目A。我的依赖项列表可能因项目而异。

我知道一个 Maven 项目可以使用 Build Triggers 来处理这个问题 → ☑ 只要构建了 SNAPSHOT 依赖项就构建，但是使用 Multibranch Pipeline 插件，没有找到任何方法处理这个。

任何指针？

Answer 1

分支的配置页面有☐构建其他项目后构建，可以选择，但不能保存分支的配置（分支侧边栏中的菜单项显示为刚刚查看配置，而不是配置）。

以下Jenkinsfile 应该做你想要实现的目标。将其添加到所有分支。如果发生更改，请在您的 master/trunk 上编辑它，然后将其挑选到受这些更改影响的分支。

// From: Trigger dependent jobs in Multibranch Pipeline project
//       http://stackoverflow.com/a/38151703/1744774

String[][] buildChains = [
  ['master'],
  ['branch1', 'master'],
  ['branch2', 'branch1', 'master'],
  ['no-build']
  // ... further build chains ...
  ]

for ( buildChain in buildChains ) {
  if ( buildChain[0].equalsIgnoreCase( env.BRANCH_NAME ) ) {
    int depth = 0
    for ( branch in buildChain ) {
      String depthIndicator = "+" * ++depth
      //optional: String depthIndicator = new String(new char[++depth]).replace('\0', '+')
      //optional: String depthIndicator = repeat( "+", ++depth )
      println "  $depthIndicator Triggering build for branch '$branch'"
      build( branch )
      } // for ( branches )
    break // comment this if there are more build chains for one branch
    }
  } // for ( buildChains )


def build( String branch ) {

  switch ( branch ) {
    case "master":
      buildMaster()
      break
    case ["branch1", "branch2"]:
      buildBranch( branch )
      break
 // case ...
 //   ...

    default:
      println "  --- No build defined for branch \'$branch\' ---"
    }  // switch ( branch )
  }  // build( branch )

def buildMaster()   {
  println '  Building branch \'master\'...'
  // ... build code ...
  }

def buildBranch( String branch )    {
  println "  Building branch '$branch'..."
  // ... build code ...
  }

// From: Can I multiply strings in Java to repeat sequences?
//       http://stackoverflow.com/a/34650746/1744774
String repeat( String s, int count ) {
  return count > 0 ? s + repeat( s, --count ) : ""
  }

在branch1上运行它：

[Pipeline] echo
  + Triggering build for branch 'branch1'
[Pipeline] echo
  Building branch 'branch1'...
[Pipeline] echo
  ++ Triggering build for branch 'master'
[Pipeline] echo
  Building branch 'master'...
[Pipeline] End of Pipeline
Finished: SUCCESS

在branch2上运行它：

[Pipeline] echo
  + Triggering build for branch 'branch2'
[Pipeline] echo
  Building branch 'branch2'...
[Pipeline] echo
  ++ Triggering build for branch 'branch1'
[Pipeline] echo
  Building branch 'branch1'...
[Pipeline] echo
  +++ Triggering build for branch 'master'
[Pipeline] echo
  Building branch 'master'...
[Pipeline] End of Pipeline
Finished: SUCCESS

记得在 Manage Jenkins → In-process Script Approval 下使用Script Security Plugin 批准最初禁止的功能。