Coscribe

About

This package provides commands to generate and update CODEOWNERS file entries. Currently, this is done by invoking shell commands with shelljs.

Each git-tracked file (that does not have preset pattern in the configuration file) will be examined for authors via the git blame --porcelain shell command (We define the author-mail field output by the git blame --porcelain command as an author here). All authors will added as owners for that file in CODEOWNERS. Note that if no authors are resolved for a file or pattern, it will be omitted as a CODEOWNERS entry.

Configuration (coscribe.yml | coscribe.yaml)

A configuration file can be optionally provided (coscribe.yaml or coscribe.yml) to override some behavior. Commands will, by default, look for this file in the directory where they were invoked. See Usage

# The relative path to the CODEOWNERS file.
# If not defined, default to the current directory where the command is invoked
codeOwnersFile: <relativePathtoCodeOwnersFile>

# During examination of a file, if an author is in the set of keys
# in this configuration, the command will remap it to the value.
authorRemap:
    '[email protected]': '[email protected]'
    '[email protected]': '[email protected]'
    # ...

# During examination of a file, if an author is in this set,
# the author will be omitted from any set of authors.
omittedAuthors:
    - '[email protected]'
    - '[email protected]'
    # ...

# These items will be converted into entries and added to the CODEOWNERS file first.
# Any file that matches any of these patterns will be omitted.
# Patterns need to be well-formed relative to the CODEOWNER rules.
presetDirectories:
    # Will convert to in CODEOWNERS file: `pattern1 author1`
    'pattern1':
        - 'author1'
    # Will convert to in CODEOWNERS file: `pattern2 author1 author2`
    'pattern2':
        - 'author1'
        - 'author2'
    # Will convert to in CODEOWNERS file: `pattern3  author2`
    'pattern3':
        - 'author2'
    # ...

# These items will be converted into entries and added to the CODEOWNERS file
# instead the entries that would have resolved from the examination process.
# These items are not patterns, just relative-path'ed files
presetFiles:
    'file1.txt':
        - 'author1'
        - 'author2'
        - 'author3'
    'a/b/c.json':
        - 'author1'
        - 'author5'
        - 'author6'
    # ...

# These pattern items will be used to filter out entries.
omittedPatterns:
    - file1.json
    - a/d/e.cpp
    # ...

Installation

Install it globally on your system.

> yarn add global coscribe

Install locally in a project

> yarn add coscribe

Usage

Run this command in the root directory of a git project. Once installed, there are two commands that can be invoked, Generate, and Update. Both commands use the currently checked out git branch.

When installed globally, you can invoke the help command with:

> coscribe -h

Or, when installed locally:

> ./node_modules/.bin/coscribe -h

Both should provide the following output

Usage: coscribe [options] [command]

Options:
  -h, --help                      display help for command

Commands:
  generate [options]              Generate code owners file
  update [options] <base-branch>  Update code owners file
  help [command]                  display help for command

Generate

When installed globally, you can invoke the help command with:

> coscribe generate -h

Or, when installed locally:

> ./node_modules/.bin/coscribe generate -h

Both should provide the following output

Usage: coscribe generate [options]

Generate code owners file

Options:
  --coscribe-file <coscribeFile>  Provide another (relative path from command execution dir) location for the config file (default: "coscribe")
  -h, --help                    display help for command

To invoke the command when installed globally:

> coscribe generate

Or, locally:

> ./node_modules/.bin/coscribe generate

Update

When installed globally, you can invoke the help command with:

> coscribe update -h

Or, when installed locally:

> ./node_modules/.bin/coscribe update -h

Both should provide the following output

Usage: coscribe update [options] <base-branch>

Update code owners file

Arguments:
  base-branch                   The base branch used for the comparison of changes

Options:
  [target-branch]               The target branch used for comparison of changes
  --coscribe-file <coscribeFile>  Provide another (relative path from command execution dir) location for the config file (default: "coscribe")
  -h, --help                    display help for command

If you want to use the currently checked out branch to derive the entry changes, relative to a base branch, Invoke the command in the following manner when the package was installed globally:

> coscribe update base-branch-name

Or when it was installed locally

> ./node_modules/.bin/coscribe update base-branch-name

If you don't want to use the currently checked out branch to derive the entry changes, relative to a base branch, Invoke the command in the following manner when the package was installed globally:

> coscribe update base-branch-name target-branch

Or when it was installed locally

> ./node_modules/.bin/coscribe update base-branch-name target-branch

Dependencies

The following OS command line programs are required to run the commands:

• git
• tr
• sort
• grep
• sed
• awk

Environments

This package has been tested on the following software versions

| OS | node | git | sort | grep | sed | awk | tr | | --------------------- | ------- | ---------------------------------- | --------------- | --------------------------------------------- | --------------------- | -------------------- | --------------------- | | Mac OS Version 13.3.1 | v19.9.0 | git version 2.39.2 (Apple Git-143) | 2.3-Apple (154) | grep (BSD grep, GNU compatible) 2.6.0-FreeBSD | PROJECT:text_cmds-154 | awk version 20200816 | PROJECT:text_cmds-154 |

TODO

• better validation throughout the process
• Adapter for nodegit
• More strategies to create file entries
• testing