Git hook commit-msg script to enforce Conventional Commits

commit-msg.php

<?php

$commit_message = file_get_contents( $argv[1] );

$is_common_commit = preg_match(
	'/^(build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test){1}(\([\w\-\.,\|\:]+\))?(!)?:\s?([\w ])+([\s\S]*)/m',
	$commit_message,
	$matches
);

if ( ! $is_common_commit ) {
	throw new Exception( 'All commits must follow the Conventional Commits format' );
}

$commit_scopes = [ 'plugin:something', 'php:this' ]; // TODO: Determine this from the list of files included in this commit.

if ( ! empty( $matches[2] ) ) {
	$message_scopes = explode( '|', str_replace( [ ',', ';', '/' ], '|', trim( $matches[2], '()' ) ) );
	$commit_scopes = array_unique( array_merge( $message_scopes, $commit_scopes ) );
}

$updated_message = str_replace(
	$matches[2],
	sprintf( '(%s)', implode( '|', $commit_scopes ) ),
	$commit_message
);

file_put_contents( $argv[1], $updated_message );

// exit(1);