fix: npm coming with node 6 doesn't talk ci

scripts/e2e.js

@@ -8,6 +8,16 @@ const fs = require('fs-extra');
 const path = require('path');
 const Paths = require('./paths');
 
+const NodeVersion = (versions => {
+ return { major: versions[0], minor: versions[1], patch: versions[2] };
+})(
+ process.versions.node
+ .split('-')
+ .shift()
+ .split('.')
+ .map(s => parseInt(s, 10))
+);
+
 function getDirectories(rootDir) {
  return fs.readdirSync(rootDir).filter(function(file) {
  return fs.statSync(path.join(rootDir, file)).isDirectory();
@@ -36,7 +46,12 @@ function setupE2e() {
  // that is why we end with the npm install of our bundle
  getDirectories(Paths.e2eWorkTemplatesDir).forEach(tmplDir => {
  const dir = path.join(Paths.e2eWorkTemplatesDir, tmplDir);
- spawnSync('npm', ['ci'], { cwd: dir, stdio: 'inherit' });
+ if (NodeVersion.major >= 8) {
+ spawnSync('npm', ['ci'], { cwd: dir, stdio: 'inherit' });
+ } else {
+ // npm coming with node < 8 does not have the `ci` command
+ spawnSync('npm', ['i'], { cwd: dir, stdio: 'inherit' });
+ }
  spawnSync('npm', ['i', '-D', bundle], { cwd: dir, stdio: 'inherit' });
  });