monkey-patching jscodeshift for decorators support

README.md

Execute scripts/patch/patch-jscodeshift.js. It will monkey-patch node_modules/jscodeshift/parser/babel5compat.js by prepending 'decorators-legacy' to the plugins array.

jscodeshift-addDecoratorsPlugin.js

// file: scripts/patch/patches/jscodeshift-addDecoratorsPlugin.js

const before = `plugins: [
    'estree',`;
const after = `plugins: [
    'decorators-legacy',
    'estree',`;

module.exports = {
    files: 'node_modules/jscodeshift/parser/babel5compat.js',
    from: before,
    to: after
};

patch-jscodeshift.js

#!/usr/bin/env node

// file: scripts/patch/patch-jscodeshift.js

const replace = require('replace-in-file');

const patches = [
    './patches/jscodeshift-addDecoratorsPlugin'
];

patches.forEach(function applyPatch(patchfile) {
    const patch = require(patchfile);
    if (Array.isArray(patch)) {
        patch.forEach(applyPatch);
        return;
    }
    try {
        const changes = replace.sync(patch);
        console.log(`[patches] ${patchfile}`, changes && changes.length ? { changes } : '(unchanged)');
    } catch (error) {
        console.log('┎──────────────────────────────────────────────────────────────────');
        console.log('┃');
        console.log(`┃ Failed to patch ${patch.files}`);
        console.log('┃');
        console.log('┖──────────────────────────────────────────────────────────────────');
        console.log(error);
    }
});