In Jenkins, how to checkout a project into a specific directory (using GIT)
GitGithubHudsonJenkinsJenkins PluginsGit Problem Overview
Sorry for the 'svn' 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've tried some refspecs magic but it wasn'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've phrased the things right.
Git Solutions
Solution 1 - Git
In the new Jenkins 2.0 pipeline (previously named the Workflow Plugin), this is done differently for:
- The main repository
- Other additional repositories
Here I am specifically referring to the Multibranch Pipeline version 2.9.
Main repository
This is the repository that contains your Jenkinsfile
.
In the Configure screen for your pipeline project, enter your repository name, etc.
Do not use Additional Behaviors > Check out to a sub-directory. This will put your Jenkinsfile
in the sub-directory where Jenkins cannot find it.
In Jenkinsfile
, check out the main repository in the subdirectory using dir()
:
dir('subDir') {
checkout scm
}
Additional repositories
If you want to check out more repositories, use the Pipeline Syntax generator to automatically generate a Groovy code snippet.
In the Configure screen for your pipeline project:
- Select Pipeline Syntax. In the Sample Step drop down menu, choose checkout: General SCM.
- Select your SCM system, such as Git. Fill in the usual information about your repository or depot.
- Note that in the Multibranch Pipeline, environment variable
env.BRANCH_NAME
contains the branch name of the main repository. - In the Additional Behaviors drop down menu, select Check out to a sub-directory
- Click Generate Groovy. Jenkins will display the Groovy code snippet corresponding to the SCM checkout that you specified.
- Copy this code into your pipeline script or
Jenkinsfile
.
Solution 2 - Git
I agree with @Łukasz Rżanek that we can use git plugin
But, I use option: checkout to a sub-direction what is enable as follow:
In Source Code Management, tick Git
click add button, choose checkout to a sub-directory
Solution 3 - Git
The default git plugin for Jenkins does the job quite nicely.
After adding a new git repository (project configuration > Source Code Management > check the GIT option) to the project navigate to the bottom of the plugin settings, just above Repository browser region. There should be an Advanced button. After clicking it a new form should appear, with a value described as Local subdirectory for repo (optional). Setting this to folder
will make the plugin to check out the repository into the folder relative to your workspace. This way you can have as many repositories in your project as you need, all in separate locations.
Alternatively, if the project you're using will allow that, you can use GIT sub modules, which are similar to external paths in SVN. In the GIT Book there is a section on that very topic. If that will not be against some policy, submodules are fairly simple to use, giving you powerful way to control the locations, versions/tags/branches that will be imported AND it will be available on your local repository as well giving you better portability.
Obviously the GIT plugin supports checking out submodules, so Jenkins can work with them quite effectively.
Solution 4 - Git
It's worth investigating the Pipeline plugin. With the plugin you can checkout multiple VCS projects into relative directory paths. Beforehand creating a directory per VCS checkout. Then issue commands to the newly checked out VCS workspace. In my case I am using git. But you should get the idea.
node{
def exists = fileExists 'foo'
if (!exists){
new File('foo').mkdir()
}
dir ('foo') {
git branch: "<ref spec>", changelog: false, poll: false, url: '<clone url>'
......
}
def exists = fileExists 'bar'
if (!exists){
new File('bar').mkdir()
}
dir ('bar') {
git branch: "<ref spec>", changelog: false, poll: false, url: '<clone url>'
......
}
def exists = fileExists 'baz'
if (!exists){
new File('baz').mkdir()
}
dir ('baz') {
git branch: "<ref spec>", changelog: false, poll: false, url: '<clone url>'
......
}
}
Solution 5 - Git
> 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?
The [Jenkin's Multiple SCMs Plugin][1] has solved the several repositories problem for me very nicely. I have just got working a project build that checks out four different git repos under a common folder. (I'm a bit reluctant to use git super-projects as [suggested previously][2] by Łukasz Rżanek, as git is complex enough without submodules.)
[1]: http://wiki.jenkins-ci.org/display/JENKINS/Multiple+SCMs+Plugin "Multiple SCMs Plugin" [2]: https://stackoverflow.com/a/9791873/413020 "Łukasz Rżanek"
Solution 6 - Git
Find repoName from the url, and then checkout to the specified directory.
String url = 'https://github.com/foo/bar.git';
String[] res = url.split('/');
String repoName = res[res.length-1];
if (repoName.endsWith('.git')) repoName=repoName.substring(0, repoName.length()-4);
checkout([
$class: 'GitSCM',
branches: [[name: 'refs/heads/'+env.BRANCH_NAME]],
doGenerateSubmoduleConfigurations: false,
extensions: [
[$class: 'RelativeTargetDirectory', relativeTargetDir: repoName],
[$class: 'GitLFSPull'],
[$class: 'CheckoutOption', timeout: 20],
[$class: 'CloneOption',
depth: 3,
noTags: false,
reference: '/other/optional/local/reference/clone',
shallow: true,
timeout: 120],
[$class: 'SubmoduleOption', depth: 5, disableSubmodules: false, parentCredentials: true, recursiveSubmodules: true, reference: '', shallow: true, trackingSubmodules: true]
],
submoduleCfg: [],
userRemoteConfigs: [
[credentialsId: 'foobar',
url: url]
]
])
Solution 7 - Git
just add "dir wrapper" to the git operation:
dir('subDir') {
checkout scm
}
Solution 8 - Git
Solution 9 - Git
I do not use github plugin, but from the introduction page, it is more or less like gerrit-trigger plugin.
You can install git plugin, which can help you checkout your projects, if you want to include multi-projects in one jenkins job, just add Repository into your job.