jenkinsci/jenkinsfile-runner

Add support of routing STDIN from files in the --cli mode

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#225 opened on Nov 6, 2019

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 (2 comments) (0 reactions) (0 assignees)Java (1,090 stars) (291 forks)batch import
enhancementgood first issue

Description

It is a follow-up to https://github.com/jenkinsci/jenkinsfile-runner/pull/207 by @xxyy . Currently the Jenkins CLI works well in the interactive mode, but only few commands there actually make sense. We could extend the feature by supporting passing STDIN via a file so that we could get commands like create-job operational inside jenkinsfile runner.

Suggested syntax:

> create-job foo <config.xml
> build foo

Later it can be extended by a create-job flavor which takes Jenkinsfile as an argument, instead XML

Contributor guide

Tech stack
java
Domain
cli
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Java programmingJenkins CLI basicsFile I/O in Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Examine the existing CLI mode implementation, particularly the class handling CLI commands (e.g., Main or CliRunner). Review PR #207 to understand the current interactive STDIN handling. Identify where command arguments are parsed and how input is read. Consider modifying the parser to accept file input via '<' operator. Look at the 'create job' command implementation to see how it currently expects input. Check if there are tests for the CLI mode to understand expected behavior.
Add support of routing STDIN from files in the --cli mode · jenkinsci/jenkinsfile-runner#225 | Good First Issue