Bump package.json major version

bump-major.js

const fs = require( 'fs' );
const semver = require( 'semver' );

const cwd = process.cwd();
const packageJsonPath = cwd + '/package.json';

const content = fs.readFileSync( packageJsonPath, 'utf-8' );

const [ fullMatch, currentVersion ] = content.match( /"version": "(.*)?"/ ) || [];

let newVersion;

if ( currentVersion.startsWith( '0' ) ) {
	newVersion = semver.inc( currentVersion, 'minor' );
} else {
	newVersion = semver.inc( currentVersion, 'major' );
}

const newContent = content.replace( fullMatch, `"version": "${ newVersion }"` );

fs.writeFileSync( packageJsonPath, newContent );