Jenkins had 600+ plugins, in the real system, we are used to install lots of plugins.

And sometimes, we want to remove some plugins to make system more clean or replace with another mature plugin (different name).

This needs to make sure no one/no job use those plugins or I need to notify them.

Are there any ways in configuration or somewhere in Jenkins system to know whether the plugin is used by any jobs ?

**UPDATE 2013**
Based on the answer below, I maintain the simple &quot;plugin:keyword&quot; mapping, like

    plugin_keys = {
	    &quot;git&quot;:&#39;scm class=&quot;hudson.plugins.git.GitSCM&quot;&#39;,
	    &quot;copyartifact&quot;:&quot;hudson.plugins.copyartifact.CopyArtifact&quot;,
            # and more      
    }

And search the plugin keyword from the `config.xml`, all the information (plugins,jobs,config) can be fetched via [jenkins remote API][1]

it works for me.

**UPDATE 2014.04.26**
Later jenkins version, it seems the config.xml is changed to have plugin name there directly

Like
 
    &lt;com.coravy.hudson.plugins.github.GithubProjectProperty plugin=&quot;github@1.4&quot;&gt;
    &lt;hudson.plugins.throttleconcurrents.ThrottleJobProperty plugin=&quot;throttle-concurrents@1.7.2&quot;&gt;
    &lt;hudson.plugins.disk__usage.DiskUsageProperty plugin=&quot;disk-usage@0.18&quot;/&gt;
    &lt;scm class=&quot;hudson.plugins.git.GitSCM&quot; plugin=&quot;git@1.4.1-SNAPSHOT&quot;&gt;

Therefore I just check this `plugin=&quot;&lt;plugin name&gt;&quot;` in `config.xml`, it works again

**UPDATE 2014.05.05**

See complete script in gist [jenkins-stats.py][2]

**UPDATE 2018.6.7**

There is [plugin usage plugin][3] support this (no REST API yet)


  [1]: https://wiki.jenkins-ci.org/display/JENKINS/Remote+access+API
  [2]: https://gist.github.com/larrycai/81234c5b9c4865234066
  [3]: https://plugins.jenkins.io/plugin-usage-plugin

how can I know whether the plugin is used by any jobs in jenkins

I&#39;m using the [github oauth plugin](https://wiki.jenkins-ci.org/display/JENKINS/Github+OAuth+Plugin) for our logins but for all of our users in the Organisation I get an error: 

    Access Denied

    &lt;user&gt; is missing the Overall/Read permission

I have tried everything I can possibly think of to try to make this work and I&#39;m probably going to fallback to making everyone an admin user, which i would prefer not to do. 

Any advise would be appreciated. 

&#39;User is missing the Overall/Read permission&#39; error with Jenkins GitHub OAuth Plugin

These have all been mentioned (for example [in this SO question][1]) for cleaning up the workspace in `Jenkinsfile`.  However, it seems that some are obsolete or have slightly different function and I would like to understand which to use.

Of these,  `deleteDir` is the most commonly mentioned, and apparently   the others are just  different syntaxes for invoking the Jenkins Workspace Cleanup Plugin.

What is the  functional difference? Which is recommended?


    deleteDir()
    cleanWs()
    step([$class: &#39;WsCleanup&#39;])


  [1]: https://stackoverflow.com/questions/37468455/

What is the difference between deleteDir, cleanWs, and &#39;WsCleanup&#39; in Jenkins pipeline?

How can I get a list of installed Jenkins plugins? 

I searched the Jenkins Remote Access API document, but it was not found. Should I use Jenkins&#39; CLI? Is there a document or example?


How to get a list of installed Jenkins plugins with name and version pair

We are running Jenkins 2.x and love the new Pipeline plugin.  However, with so many branches in a repository, disk space fills up quickly.  

Is there any plugin that&#39;s compatible with Pipeline that I can wipe out the workspace on a successful build? 

Jenkins Pipeline Wipe Out Workspace

I am new to Hudson / Jenkins and was wondering if there is a way to check in Hudson&#39;s configuration files to source control.

Ideally I want to be able to click some button in the UI that says &#39;save configuration&#39; and have the Hudson configuration files checked in to source control.

Is there a way to keep Hudson / Jenkins configuration files in source control?

Installing a plugin from the Update center results in:

&gt; Checking internet connectivity Failed to connect to
&gt; http://www.google.com/. Perhaps you need to configure HTTP proxy? Deploy Plugin  Failure - Details hudson.util.IOException2: Failed to download from
&gt; http://updates.jenkins-ci.org/download/plugins/deploy/1.9/deploy.hpi

Is it possible to download the plugin and install it manually into Jenkins?


How to install a plugin in Jenkins manually

How can I cleanup the workspace in Jenkins? I am using `AccuRev` as version control tool.

I created `freestyle` projects in Jenkins.


Jenkins: Is there any way to cleanup Jenkins workspace?

I have a strange problem with the Jenkins HTML Publisher plugin, wherein all the fancy CSS I have added to the report is stripped out when viewed in Jenkins. If I download the report to local, I am able to see the CSS formatting. Is there a setting in Jenkins which allows CSS to be viewed?

My HTML Publisher Settings in Jenkins:

[![enter image description here][1]][1]


My Report Page when displayed in Jenkins :

[![enter image description here][2]][2]


My Report Page when displayed in Local :

[![enter image description here][3]][3]


  [1]: http://i.stack.imgur.com/PIRyV.png
  [2]: http://i.stack.imgur.com/4aSHL.png
  [3]: http://i.stack.imgur.com/3dq0V.png

Jenkins - HTML Publisher Plugin - No CSS is displayed when report is viewed in Jenkins Server

I am trying to install Jenkins on Ubuntu 13.10 and I am getting the above mentioned error when i try to run the following command:

    wget -q -O - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -

gpg: no valid OpenPGP data found

I am trying to execute a shell script if either the build pass or fails after post-build in Jenkins. I cannot see this option in post build to execute some shell script except for running a target.


Execute Shell Script after post build in Jenkins

Sorry for the &#39;svn&#39; style - we are in a process of migration from SVN to GIT (including our CI Jenkins environment).

What we need is to be able to make Jenkins to checkout (or should I say clone?) the GIT project (repository?) into a specific directory. We&#39;ve tried some refspecs magic but it wasn&#39;t too obvious to understand and use successfully.

Furthermore, if in the same Jenkins project we need to checkout several private GitHub repositories into several separate dirs under a project root, how can we do it please?

We have GitHub plugin installed. Hope we&#39;ve phrased the things right.

In Jenkins, how to checkout a project into a specific directory (using GIT)

I need to know which branch is being built in my Jenkins multibranch pipeline in order for it to run steps correctly. 

We are using a gitflow pattern with `dev`, `release`, and `master` branches that all are used to create artifacts. The `dev` branch auto deploys, the other two do not. Also there are `feature`, `bugfix` and `hotfix` branches. These branches should be built, but not produce an artifact. They should just be used to inform the developer if there is a problem with their code. 

In a standard build, I have access to the `$GIT_BRANCH` variable to know which branch is being built, but that variable isn&#39;t set in my multibranch pipeline. I have tried `env.GIT_BRANCH` too, and I tried to pass `$GIT_BRANCH` as a parameter to the build. Nothing seems to work. I assumed that since the build knows about the branch being built (I can see the branch name at the top of the console output) that there is something that I can use - I just can&#39;t find any reference to it. 

What is the branch name variable for Jenkins multibranch pipelines?

What plugins and plugin features do I need to set in order to get my Jenkins job to trigger a build any time code is committed to an SVN project?

I have installed both the standard SVN plugin as well as the SVN tagging plugin, but I do not see any new features that allow trigger configuration.


Jenkins CI: How to trigger builds on SVN commit

Is there a way to save/archive multiple artifacts from the same build?

Jenkins only allows a single &#39;Archive the Artifacts&#39; post build step, and grey&#39;s out the option after it has been used once.

Maybe the `ArtifactsArchiver`&#39;s allows multiple patterns?

Jenkins multiple artifacts for the same build

I have a job called &quot;development&quot; and another project called &quot;code analysis&quot;. At the moment we have two different jobs and different workspaces, but same code; is there any way we could use the same workspace for multiple jobs?&lt;br&gt;I checked the plugins available in Jenkins but I haven&#39;t found any suitable one. 
 

Same workspace for multiple jobs

In order to get the fastest feedback possible, we occasionally want Jenkins jobs to run in Parallel. Jenkins has the ability to start multiple downstream jobs (or &#39;fork&#39; the pipeline) when a job finishes. However, Jenkins doesn&#39;t seem to have any way of making a downstream job only start of all branches of that fork succeed (or &#39;joining&#39; the fork back together).

Jenkins has a &quot;Build after other projects are built&quot; button, but I interpret that as &quot;start this job when **any** upstream job finishes&quot; (not &quot;start this job when **all** upstream jobs succeed&quot;).

Here is a visualization of what I&#39;m talking about. Does anyone know if a plugin exists to do what I&#39;m after?
![Build Pipeline][1]

---

# Edit:

When I originally posted this question in 2012, Jason&#39;s answer (the Join and Promoted Build plugins) was the best, and the solution I went with.

However, dnozay&#39;s answer (The Build Flow plugin) was made popular a year or so after this question, which is a much better answer. For what it&#39;s worth, if people ask me this question today, I now recommend that instead.



  [1]: http://i.stack.imgur.com/IywrJ.png

How do I make a Jenkins job start after multiple simultaneous upstream jobs succeed?

What is the major difference between  [Job DSL Plugin][1] and [Pipeline Plugin][2]
  [1]: https://wiki.jenkins-ci.org/display/JENKINS/Job+DSL+Plugin
  [2]: https://wiki.jenkins-ci.org/display/JENKINS/Pipeline+Plugin


----------

 1.  both provide way to programmatic job creation
 2.  which is the best to use as moving ahead and why?
 3.  if both have similar functionality, do they have different use cases?
 4.  Since Jenkins 2.0 is focusing on Pipelines as code, does this mean that job-dsl does not have a future or Pipeline Plugin is the next step in the Job DSL Plugin?
 



Job DSL Plugin Vs Pipeline Plugin

In Jenkins, is there a way to give different timeouts to each or selected build step?  
Build-time plugin out gives functionality of timeout &quot;Abort the build if it&#39;s stuck&quot; on complete project, what I need is to give different timeouts for each step. This way I can make my process more efficient.

All Jenkins Plugins Solutions on Gang of Coders

Total of 19 Jenkins Plugins Solutions