parsetargets

#!/usr/bin/env node
const yamljs = require('yamljs');
const fs = require('fs');

const TARGET_LABEL = 'com.yolean.build-target';

// Let's not push anything where we don't want it!
const VALID_PUSH_RE = /^(localhost|[^\/]+\.local)/;

// Matches two different approaches:
// $REGISTRY_HOST/group/name:$PUSH_TAG
// localhost:5000/group/name:$PUSH_TAG
// $REGISTRY_HOST/group/name:${PUSH_TAG}
// localhost:5000/group/name:${PUSH_TAG}

const { services } = yamljs.parse(fs.readFileSync('/dev/stdin', 'UTF-8'));

for (let key in services) {
  const service = services[key];
  const labels = service.labels || [];
  if (TARGET_LABEL in labels ||
    (Array.isArray(labels) && labels.indexOf(TARGET_LABEL) !== -1)) {

    if (!VALID_PUSH_RE.test(service.image))
      throw new Error('build-contract only wants to push to "localhost..."! Not a valid image name: ' + service.image);

    console.log(key);
  }
}