Remove use of heroku-buildpack-multi

[esauter5]

I was trying to use heroku-buildpack-multi and was getting failures when trying to push to Heroku. This led me to realize that Heroku natively supports using multiple build packs now, so there is no need to use heroku-buildpack-multi or have to worry about a .buildpack file. I simplified the instructions and removed references to .buildpack in the code. Now, all you have to worry about is running this from the CLI:

heroku buildpacks:set heroku/ruby
heroku buildpacks:add --index 1 heroku/nodejs

[esauter5]

I'm now noticing that the docs previously described that you could use heroku-buildpack-multi or set up multiple buildpacks via the toolbelt. I actually mistakenly merged these ideas together in a previous update on the docs. I still agree it's best to just remove heroku-buildpack-multi in general and have one simple way to set this up. Thoughts?

[justin808]

@esauter5 This looks great! Can you find one other person in our slack room to confirm these instructions work? Thanks!

[stevesuh]

When you run those CLI commands does the .buildpack file get updated? I have an existing .buildpack file with dependenices to heroku-buildpack-apt and heroku-bundle-config.

[esauter5]

AFAIK, the .buildpack file is only used by heroku-buildpack-multi. In this case, I'm suggesting removing that. Then you just run those two commands and the buildpacks are updated on heroku. You don't need to worry about .buildpack.

This brings an interesting point though. I guess I hadn't thought about the possibility that people still might need other buildpacks. May need to update the docs a little more to detail this option

[justin808]

@esauter5 Keep me posted.

[esauter5]

@justin808 Will do. Hope to get to this in the next day or so.

[esauter5]

This should be good. I added something at the end of the heroku deployment section pointing to heroku-buildpack-multi in case people need a custom buildpack option.

[justin808]

I think this is the one you want: https://github.com/heroku/heroku-buildpack-multi

[justin808]

This looks good. One suggestion added.

[esauter5]

The old docs recommended and linked to ddollar's version, but then used the heroku one in an example. The heroku version is just a fork of ddollar's and appears to be deprecated according to this comment.

I tried using heroku's previously and was not able to get it to work. I'm open to linking to whichever though.

[justin808]

@esauter5 Great catch! Yes, just last fall, the strategy changed. And the ddollar one has been more recently updated.

[justin808]

we need to delete the .buildpacks file also.

[esauter5]

Ahh good catch! That file was hiding from me because it was a dot file.

[justin808]

Let's:

1. rebase on top of master
2. remove .buildpacks

Then I'll release the next version!

Great job @esauter5!

[esauter5]

Thanks for the help @justin808! This should be good.

[justin808]

💯

---

Reviewed 2 of 4 files at r1, 1 of 2 files at r2, 2 of 2 files at r3.
Review status: all files reviewed at latest revision, 1 unresolved discussion.

---

Comments from the review on Reviewable.io