Infer pipeline from git heroku remote

[schpet]

Do you want to request a feature or report a bug?

feature! i'd like it if pipeline commands, like heroku ci, could infer the pipeline from the git config instead of asking me to provide --app or --pipeline flags. similar to how commands like heroku config do not require you to provide an --app or ---remote flag if the git heroku remote is set up.

What is the current behavior?

given you've run the following:

heroku git:remote -a example-app-staging --remote staging
heroku git:remote -a example-app-production --remote production
git config heroku.remote staging

your .git/config will have this:

[remote "staging"]
	url = https://git.heroku.com/example-app-staging.git
	fetch = +refs/heads/*:refs/remotes/staging/*
[remote "production"]
	url = https://git.heroku.com/example-app-production.git
	fetch = +refs/heads/*:refs/remotes/production/*
[heroku]
	remote = staging

ci/pipeline commands return an error asking for flags

$ heroku ci:last
 ›   Error: Required flag:  --pipeline PIPELINE or --app APP

What is the expected behavior?

with a heroku git remote setup:

$ heroku ci:last

outputs the last CI run for the pipeline coupled to the heroku git remote.

#1251 is similar!