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 默认情况下，Jenkins作业有两个目录（在工作流作业的情况下，可以只有一个， builds ，或者更多，例如其他promotions目录）： 
 
 
 
 根据$BUILD_ID JENKINS_HOME/jobs/${JOB_NAME}/builds/包含子目录 
 
 
 JENKINS_HOME/jobs/${JOB_NAME}/workspace/ 
 
 
 因此， 每个作业有一个工作区， 每个构建一个构建目录 。 
 
 
 不要让JENKINS-8446驱动的由此更改 管理的Jenkins页面让您感到困惑。 工作空间默认值，如内联帮助（撰写本文时的当前v1.635）中所述，仍然是： 
 
 管理Jenkins→配置系统→高级...→工作区根目录 ： ${ITEM_ROOTDIR}/workspace 
 
 这不是${JENKINS_HOME}/workspace/${JOB_NAME} 。 
 
 
 如果丢弃旧构建，则不会丢弃工作空间，但是，由于每个作业存在，因此每个新构建都会覆盖它。 因此，如果你想保留旧文物，你可以： 
 
 
 
 创建一个“归档”作业，该作业使用复制工件插件并将其作为下游连接到您的构建作业。 
 
 
 使用构建后操作 → Groovy Postbuild或→ 执行一组脚本，将它们自己移动到其他位置（包括创建唯一命名的子目录以存储工件）。 
 
 
 还有Discard Old Build插件 ，它通过Post-build Action增强了Jenkins的内置丢弃功能。 

There are two directories for a Jenkins job, by default (there can be just one, builds, in case of a Workflow job, or more, e.g. an additional promotions directory):
 
 
 
JENKINS_HOME/jobs/${JOB_NAME}/builds/ containing sub-dirs according to $BUILD_ID
 
 
JENKINS_HOME/jobs/${JOB_NAME}/workspace/
 
 
So, there's one workspace per job and one build directory per build.
 
 
 Don't let the page Administering Jenkins with this change driven by JENKINS-8446 confuse you. The workspace default, as also mentioned in the inline help (of the current v1.635 at the time of this writing), is still:
 
Manage Jenkins → Configure System → Advanced... → Workspace Root Directory: ${ITEM_ROOTDIR}/workspace
 
It's NOT ${JENKINS_HOME}/workspace/${JOB_NAME}.
 
 
If a discard of old builds takes place the workspace isn't discarded, but, since it exists per job, it is overwritten with every new build. Hence, if you'd like to keep old artifacts you can:
 
 
 
create an "archive" job that uses the Copy Artifact Plugin and connect it as downstream to your build job.
 
 
move them to some other location yourself (including creation of uniquely-named sub-dirs to store the artifact(s) in) using a Post-build Action → Groovy Postbuild or → Execute a set of scripts.
 
 
There's also the Discard Old Build plugin which enhances Jenkins' built-in discard functionality via a Post-build Action.