Learn and Use the GitHub CODEOWNERS file
CODEOWNERS file is a text file used to define code owners for specific files or directories in a GitHub repository.
It's a great way to ensure changes to the codebase are reviewed by the appropriate team members.
The people/teams listed in your
CODEOWNERS auto-magically get added to pull request reviews.
Creating a CODEOWNERS file
In the root of your project,
docs/ directory or the
.github/ directory, create a new file called
Syntax and structure
The syntax for the file is simple - a simple pattern-matching syntax to assign code owners for specific files or directories.
# This is a comment - Helpful for leaving notes. # Default code owners # Will require approval from @NiallJoeMaher or @anotheruser * @NiallJoeMaher @anotheruser # Specific code owners for a subdirectory # Will require approval from @NiallJoeMaher /subdir/ @NiallJoeMaher # Specific code owners for a file type # Will require approval from @anotheruser *.js @anotheruser # Example with a specific file # Will require approval from the team @codu-code/maintainers /docs/README.md @codu-code/maintainers
- The asterisk (*) represents a global pattern that matches all files and directories.
- The directory or file pattern is followed by one or more GitHub usernames or team names (prefixed with '@').
When you open a pull request, depending on the conditions set in your
CODEOWNERS file, the appropriate people will be added as reviewers to your PR. 🎉
- Maintain an up-to-date
CODEOWNERSfile: Regularly verify the list of code owners to ensure accuracy and make updates when team structures change.
- Implement a modular strategy: For repositories containing numerous subdirectories with distinct responsibilities, establish individual rules within the CODEOWNERS file to enhance the organization of code ownership.
- Promote teamwork: Don't leave it all to your CODEOWNERS - Cultivate a collaborative atmosphere by motivating team members to evaluate and offer feedback on their colleagues' code, regardless of whether they are officially designated as code owners.
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