test

index.js

#!/usr/bin/env node
const fs = require('fs');
const { processTemplate } = require('./processor')
function run() {

	const templateFilePath = '../.stackery/template.yaml';
	const templateExists = fs.existsSync(templateFilePath);

	if (!templateExists) {
		console.log('Could not find template file:', templateFilePath, 'cwd:', process.cwd());
		process.exit(1);
	}

	processTemplate();
}

console.log('node arguments:', process.argv);
console.log('env:', process.env);

run();

package.json

{"name": "stackery-template-token-replace", "version": "0.0.0", "bin": "./index.js"}

processor.js

const fs = require('fs');

const tokenEnvNamePrefix = 'STACKERY_TOKEN_';
const templateFilePath = '../.stackery/template.yaml';
 

function processTemplate() {

	const templateExists = fs.existsSync(templateFilePath);

	if (!templateExists) {
		console.log('Could not find template file:', templateFilePath, 'cwd:', process.cwd());
		process.exit(1);
	}
	
	const templateOriginal = fs.readFileSync(templateFilePath, 'utf8');
	const tokens = getTokens(process.env);

	console.log('Found tokens:', tokens);

	let templateUpdated = templateOriginal;
	
	for (const [name, value] of tokens) {
		const tokenRegex = new RegExp(`<${name}>`, 'ig');
		templateUpdated = templateUpdated.replace(tokenRegex, 'dev');
	}

	console.log('Updated template:\n', templateUpdated);
	fs.writeFileSync(templateFilePath, templateUpdated);

	console.log('Wrote new template.');
}

function getTokens(processEnv) {
	const tokenMapArray = Object
		.keys(process.env)
		.filter(p => p.toUpperCase().indexOf(tokenEnvNamePrefix) >= 0)
		.map(name => [name.substring(tokenEnvNamePrefix.length), process.env[name]]);
	
	return new Map(tokenMapArray);
}

module.exports = {
	processTemplate,
	getTokens,
}