Trouble deploying with gen

[ggamel]

Problem

Build command successfully works under macOS, not on Netlify.

Expected behavior

gen successfully deploys using build command.

Actual Behavior

gen fails with exit code 1 when deploying using Netlify

Here's the relevant portion of the deploy log from Netlify showing an apparent issue encountered with gen@L65

Deploy log

11:10:41 PM: NPM modules installed
11:10:42 PM: /opt/build/repo/node_modules/@compositor/gen/bin/cli.js:65
const create = async (dirname, opts) => {
                     ^

SyntaxError: Unexpected token (
    at createScript (vm.js:56:10)
    at Object.runInThisContext (vm.js:97:10)
    at Module._compile (module.js:542:28)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.runMain (module.js:604:10)
    at run (bootstrap_node.js:383:7)
    at startup (bootstrap_node.js:149:9)
11:10:42 PM: Cached NPM modules
11:10:42 PM: Build complete: exit code: 1
11:10:42 PM: Cleaning up docker container
11:10:42 PM: Error running command: Build script returned non-zero exit code: 1
11:10:42 PM: An error occurred while building the site, skipping the deploy and cache refresh.
11:10:43 PM: Build script returned non-zero exit code: 1
11:10:43 PM: Finished processing build request in 39.073240634s

For reference, here's my package.json:

{
  "name": "2018.greg.is",
  "version": "0.0.1",
  "description": "Primary site of Greg Gamel",
  "scripts": {
    "test": "which gen",
    "start": "gen src -Dop 8080",
    "build": "gen src -d dist"
  },
  "author": "Greg Gamel",
  "devDependencies": {
    "@compositor/gen": "^1.0.0-4"
  }
}

My site structure is currently identical to the gen example dir

Again, everything works locally without error or issue. Not sure what might be the issue. Any guidance would be appreciated.

[johno]

Hey @ggamel, thanks for the detailed report. At first glance it looks like an issue with node versioning. async/await is supported in Node v7.6(?) and later. What version of node is running where the Netlify build is failing?

[ggamel]

Hey @johnotander. Thanks for the pointer. I've now solved the deploy issue. This was a fun issue to work through & solve.

For posterity, and to help anyone else who wishes to use Netlify with gen, all working steps & config are below:

gen dir setup

Follow your heart or refer to this helpful examples dir

Set locally

Inside the repo

Export your node version to .nvmrc file:

node -v > .nvmrc

Commit .nvmrc to repo and push to GitHub:

g commit -m "Add nvmrc with node version to satisfy Netlify"

Make sure you have gen installed in devDependencies:

npm i -D @compositor/gen

Add scripts to your package.json:

  "scripts": {
    "test": "which gen",
    "start": "gen src -Dop 8080",
    "build": "gen src -d dist"
  }

Note: Test these scripts to make sure they fit with your gen dir setup.

---

Set on Netlify

Connect your fully pushed repo

1. Log in to Netlify
2. Pressing New site from Git
3. Locate Build & deploy under Site Settings > Deploy Settings
4. Set settings as below:
   
5. Save
6. Locate Build environment variables under Site Settings > Deploy Settings
7. Set settings as below:
   

---

Push & Deploy

Everything should be set. Now verify your repo is pushed to GitHub, open Netlify, watch the deploy log, and rejoice when your deploy/build is successful.