Dokku recognizes my Node.js app as Go app on deploy

Question

I was create Procfile with the contents:

web: node web.js

My package.json:

{ "name": "app-express", "version": "0.0.1", "private": true, "description": "web panel", "main": "web.js", "scripts": { "start": "node web.js" }, "dependencies": { "async": "^0.2.10", ... }, "engines": { "node": "0.10.x", "npm": "1.2.x" }, "keywords": [ "node" ] }

When I push my app, I see:

> git push digitalocean master
Counting objects: 1207, done. Delta compression using up to 2 threads. Compressing objects: 100% (1141/1141), done. Writing objects: 100% (1207/1207), 5.43 MiB | 360 KiB/s, done. Total 1207 (delta 138), reused 0 (delta 0) -----> Building app-express ... Go app detected remote: ! A .godir is required. For instructions: remote: ! http://mmcgrana.github.io/2012/09/getting-started-with-go-on-heroku To dokku@95.85.*.*:app-express ! [remote rejected] master -> master (pre-receive hook declined) error: failed to push some refs to 'dokku@95.85.*.*:app-express'

What I do wrong?

Answer 1

Dokku uses the buildstep project to implement support for Heroku buildpack support. The GO buildpack uses the following detection script:

https://github.com/kr/heroku-buildpack-go/blob/master/bin/detect

#!/usr/bin/env bash
# bin/detect <build-dir>
set -e

if test -n "$(find "$1" -type f -name '*.go' | sed 1q)"
then echo Go
else echo no; exit 1
fi

Is there any chance you have files with a ".go" extension in your project's code?