linter-jenkins

Jenkinsfile lint via declarative linter
mschuchard
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Linter-Jenkins

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Linter-Jenkins aims to provide functional and robust declarative-linter linting functionality within Atom. This will lint your Jenkinsfiles using declarative syntax.

Installation

A Jenkins server with the jenkins-pipeline plugin installed is required to be accessible. If one is not available in your network, then it is recommended to stand up a portable server instance with Vagrant or Docker as both will work fine with this. The Linter and Language-Jenkinsfile or Language-Groovy Atom packages are also required. Additional requirements depend upon your usage method (see below).

Usage Methods

  • CLI and CURL: Requires the jenkins-cli installed locally. Lints with jenkins-cli requesting the Jenkins server to access its own REST API endpoint.
  • CLI and SSH: Requires the jenkins-cli installed locally. Lints with jenkins-cli requesting the Jenkins server to ssh into itself to execute the declarative-linter.
  • SSH then CLI: Requires SSH installed locally and with access to the Jenkins server. Lints with ssh into the server and then the server executing the declarative-linter implictly with jenkins-cli. This method is not recommended with Vagrant or Docker.
  • SSH then full CLI: Requires SSH installed locally and with access to the Jenkins server. Lints with ssh into the server and then the server explicitly executing the jenkins-cli to access its own REST API endpoint. This method is not recommended with Docker. vagrant ssh-config will reveal the information needed to use this with Vagrant.
  • CURL: Requires CURL installed locally and with access to the Jenkins server. Lints with curl against the server's REST API endpoint. This is the easiest, but Jenkins discourages it for security reasons (CRSF helps with this and is handled automatically on the client side).

Debug

When you select Debug Mode from the package settings, the raw command used for linting will be output as info to the linter display in Atom. This is helpful for debugging whether your connection to the Jenkins Pipeline plugin is functioning. Note that CLI and SSH methods pipe in the Jenkinsfile content to stdin, which is represented as < /path/to/Jenkinsfile in the debug display. This might not necessarily be accurate for your OS.

Note

Due to some incompatibility between the Jenkins Pipeline Validator and Atom and/or its packages, a bug was introduced such that if there is a ; in the comments of a Jenkinsfile, then the linter information will not display. Also, usage of a ; in the code (even within a String) will cause false errors. Please refrain from ; in your Jenkinsfile until Atom and/or Jenkins fixes the bug.