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CONTRIBUTING.md

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nf-core/rnaseq: Contributing Guidelines

Hi there! Many thanks for taking an interest in improving nf-core/rnaseq.

We try to manage the required tasks for nf-core/rnaseq using GitHub issues, you probably came to this page when creating one. Please use the pre-filled template to save time.

However, don't be put off by this template - other more general issues and suggestions are welcome! Contributions to the code are even more welcome ;)

If you need help using or modifying nf-core/rnaseq then the best place to ask is on the pipeline channel on Slack.

Contribution workflow

If you'd like to write some code for nf-core/rnaseq, the standard workflow is as follows:

  1. Check that there isn't already an issue about your idea in the nf-core/rnaseq issues to avoid duplicating work.
    • If there isn't one already, please create one so that others know you're working on this
  2. Fork the nf-core/rnaseq repository to your GitHub account
  3. Make the necessary changes / additions within your forked repository
  4. Submit a Pull Request against the dev branch and wait for the code to be reviewed and merged.

If you're not used to this workflow with git, you can start with some basic docs from GitHub or even their excellent interactive tutorial.

Tests

When you create a pull request with changes, Travis CI will run automatic tests. Typically, pull-requests are only fully reviewed when these tests are passing, though of course we can help out before then.

There are typically two types of tests that run:

Lint Tests

The nf-core has a set of guidelines which all pipelines must adhere to. To enforce these and ensure that all pipelines stay in sync, we have developed a helper tool which runs checks on the pipeline code. This is in the nf-core/tools repository and once installed can be run locally with the nf-core lint <pipeline-directory> command.

If any failures or warnings are encountered, please follow the listed URL for more documentation.

Pipeline Tests

Each nf-core pipeline should be set up with a minimal set of test-data. Travis CI then runs the pipeline on this data to ensure that it exists successfully. If there are any failures then the automated tests fail. These tests are run both with the latest available version of Nextflow and also the minimum required version that is stated in the pipeline code.

Getting help

For further information/help, please consult the nf-core/rnaseq documentation and don't hesitate to get in touch on the nf-core/rnaseq pipeline channel on Slack.