compiling error when using community golang buildpack on bluemix - go

Question

One of my bluemix application worked for weeks but it start to report parse error with Buildpack compilation step failed when pushing app to bluemix:
-----> Downloaded app package (556K)
Cloning into '/tmp/buildpacks/buildpack-go'...
Submodule 'compile-extensions' (https://github.com/cloudfoundry-incubator/compile-extensions.git) registered for path 'compile-extensions'
Cloning into 'compile-extensions'...
Submodule path 'compile-extensions': checked out 'f752ecf4b27d2f31bb082dfe7a47c76fefc769d7'
-------> Buildpack version 1.4.0
parse error: Expected separator between values at line 32, column 3
Staging failed: Buildpack compilation step failed
Here's my manifest.yml file:
---
applications:
- name: joystick
memory: 128M
path: .
buildpack: https://github.com/cloudfoundry/buildpack-go.git
Update: I carefully read the error message and figured out it is application space problem caused by Godeps.json parsing error caused by code merging where one comma is missed. I can not reproduce this locally because I checked in _workspace directory where it never parse Godeps.json.
I created issue 86 to improve this buildpack to provide more information for such kind of error message.

Answer 1

The error message parse error: Expected separator between values at line 32, column 3 comes from jq command within buildpack code, where it tries to read import path from Godeps/Godeps.json by assuming it's a valid JSON file. see line #64 of /bin/compile.
It will stop buildpack if the Godeps.json is not json.
I created issue 86 to improve this buildpack to provide more information for such kind of error message.
Thanks for everyone who spent time on this problem.
Update: issue 86 was fixed in heroku golang buildpack by adding new step to checking Godeps.json format.