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github-codeowners

Maintainability Test Coverage CircleCI Known Vulnerabilities

A CLI tool for working with GitHub CODEOWNERS.

Things it does:

  • Calculate ownership stats
  • Find out who owns each and every file (ignoring files listed in .gitignore)
  • Find out who owns a single file
  • Find out who owns your staged files
  • Outputs in a bunch of script friendly handy formats for integrations (CSV and JSONL)
  • Validates that your CODEOWNERS file is valid

Installation

Install via npm globally then run

$ npm i -g github-codeowners
$ github-codeowners --help 
Usage: github-codeowners [options] [command]

Commands

Audit

Compares every file in your current (or specified) directory against your CODEOWNERS rules and outputs the result of who owns each file.

$ cd <your awesome project> 
$ github-codeowners audit
README.md
package.json
src/cli.ts      @jjmschofield
...

Ownership stats:

$ github-codeowners audit -s
--- Counts ---
Total: 24 files (1378 lines)
Loved: 10 files (494 lines)
Unloved: 14 files (884 lines)
--- Owners ---
@jjmschofield: 10 files (494 lines)

Only files in a specific directory:

$ github-codeowners audit -r src/
src/cli.ts      @jjmschofield
src/commands/audit.ts   @jjmschofield
...

Only unowned files:

$ github-codeowners audit -u
.github/CODEOWNERS
.gitignore

Output in JSONL:

$ github-codeowners audit -o jsonl
{"path":"src/commands/audit.ts","owners":["@jjmschofield"],"lines":48}
...

Output in CSV:

$ github-codeowners audit -o csv
src/commands/audit.ts,@jjmschofield

Full usage information:

$ github-codeowners audit --help
Usage: github-codeowners audit [options]

list the owners for all files

Options:
  -d, --dir <dirPath>          path to VCS directory (default: "<current working directory>")
  -c, --codeowners <filePath>  path to codeowners file (default: "<dir>/.github/CODEOWNERS")
  -o, --output <outputFormat>  how to output format eg: simple, jsonl, csv (default: "simple")
  -u, --unloved                unowned files only (default: false)
  -g, --only-git               consider only files tracked by git (default: false)
  -s, --stats                  output stats (default: true)
  -r, --root <rootPath>        the root path to filter files by (default: "")
  -h, --help                   output usage information

Who

Tells you who owns a given file or files:

$ cd <your awesome project> 
$ github-codeowners who <file> <file>
<file> @some/team
<file> @some/team

Full usage:

$ github-codeowners who --help                   
Usage: github-codeowners who [options] <file...>

lists owners of a specific file or files

Options:
  -d, --dir <dirPath>          path to VCS directory (default: "/Users/jjmschofield/projects/github/snyk/registry")
  -c, --codeowners <filePath>  path to codeowners file (default: "<dir>/.github/CODEOWNERS")
  -o, --output <outputFormat>  how to output format eg: simple, jsonl, csv (default: "simple")
  -h, --help                   output usage information

Git

Provides a list of files with their owners between commits (against the current version of CODEOWNERS).

Ownership of all files staged for commit:

$ cd <your awesome project>
$ github-codeowners git

Ownership of files existing at a specific commit:

$ github-codeowners git <commit sha>

Ownership of files changed between two commits:

$ github-codeowners git <commit sha> <commit sha>

Output stats:

$ github-codeowners git -s

Full usage:

$ github-codeowners git --help                                                                                       
Usage: github-codeowners git [options] [shaA] [shaB]

lists owners of files changed between commits, a commit against head or staged against head.

Options:
  -d, --dir <dirPath>          path to VCS directory (default: "/Users/jjmschofield/projects/github/snyk/registry")
  -c, --codeowners <filePath>  path to codeowners file (default: "<dir>/.github/CODEOWNERS")
  -o, --output <outputFormat>  how to output format eg: simple, jsonl, csv (default: "simple")
  -s, --stats                  output stats, note line counts are not available for this command (default: false)
  -h, --help                   output usage information

Validate

Validates your CODEOWNERS file to find common mistakes, will throw on errors (such as malformed owners).

$ cd <your awesome project> 
$ github-codeowners validate
Found duplicate rules [ 'some/duplicate/rule @octocat' ]
Found rules which did not match any files [ 'some/non-existent/path @octocat' ]
...

Full usage information:

$ github-codeowners validate --help
Usage: github-codeowners validate [options]

Validates a CODOWNER file and files in dir

Options:
  -d, --dir <dirPath>          path to VCS directory (default: "<current working directory>")
  -c, --codeowners <filePath>  path to codeowners file (default: "<dir>/.github/CODEOWNERS")
  -r, --root <rootPath>        the root path to filter files by (default: "")
  -h, --help                   output usage information

Output Formats

Check github-codeowners <command> --help for support for a given command, however generally the following outputs are supported:

  • simple - tab delimited - terminal friendly output
  • jsonl - line separated json - useful for streaming data to another command
  • csv - csv delimited fields - useful to import into a spreadsheet tool of your choice

Limits and Things to Improve

  • It requires node
  • It is not optimized
  • The output interface might change
  • Command syntax might change

Shout outs

Inspired by codeowners but implemented in Typescript with extra bells and whistles.