request: buildpacks:edit

[danp]

It'd be great if there was a buildpacks:edit command that was similar to kubectl edit and other similar commands:

1. fetch the current list of buildpacks
2. open $EDITOR with that list, one per line
3. when editor exits, set the app's buildpacks to the written list

[jdx]

great idea, I wonder if there are other places we could do this. Might even be cool if we could edit Procfiles like this.

Though this command is actually in https://github.com/heroku/heroku-buildpacks. I'll create a ticket for this there.

[jdx]

whoops nevermind, the code is here

[jdx]

we considered doing this with a modification of inquirer's checklist, but using a text editor might be easier and more standard