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CONTRIBUTING.md

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nf-core/demultiplex: Contributing Guidelines

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

We try to manage the required tasks for nf-core/demultiplex 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/demultiplex then the best place to ask is on the nf-core Slack #demultiplex channel (join our Slack here).

Contribution workflow

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

  1. Check that there isn't already an issue about your idea in the nf-core/demultiplex 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/demultiplex 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 docs from GitHub or even their excellent git resources.

Tests

When you create a pull request with changes, GitHub Actions 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

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. GitHub Actions then runs the pipeline on this data to ensure that it exits 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.

Patch

: warning: Only in the unlikely and regretful event of a release happening with a bug.

  • On your own fork, make a new branch patch based on upstream/master.
  • Fix the bug, and bump version (X.Y.Z+1).
  • A PR should be made on master from patch to directly this particular bug.

Getting help

For further information/help, please consult the nf-core/demultiplex documentation and don't hesitate to get in touch on the nf-core Slack #demultiplex channel (join our Slack here).