Basic detokenization script for a VSTS Release "Bash Task". Intended for inline execution. Uses handlebars syntax. Tested on Linux and Windows. Assumes Node V7.6+ is installed. Also assumes files are prefixed with B2C_1A_ and end with an extension of .xml.

gistfile1.txt

npm install handlebars form-data node-fetch

s="'use strict';
const fs = require('fs');
const path = require('path');
const handlebars = require('handlebars');

const source = process.env.source || '.';
const target = process.env.target || '.';
const tokens = {
    tenantId: process.env.tenantId || 'defaultTenantId',
    buildId: process.env.buildId || '000'
}

const getLocalPolicies = ((path) => {
    const files = fs.readdirSync(path);
    return files.filter((file) => {
      return (file.includes('B2C_1A_') && file.endsWith('.xml'));
    });
});

const getFileContent = ((path) => {
    return fs.readFileSync(path, 'utf8');
});

const detokenize = (source, data) => {
  const template = handlebars.compile(source);
  return template(data);
}

const persistExistingPolicy = (name, content) => {
  fs.writeFileSync(name, content, (err) => {
    if (err) throw err;
  });
}

getLocalPolicies(source).forEach(policy => {
    const localPolicy = getFileContent(path.join(source, policy));
    const detokenizedPolicy = detokenize(localPolicy, tokens); 
    persistExistingPolicy(path.join(target, policy), detokenizedPolicy);
});
"

node -e "$s"