ps:scale does not understand the new dyno types

[shedd]

There seems to be a bug in trying to scale applications using the ps:scale command with the new dyno types.

I keep hitting this error:

$ heroku ps:scale web=1:Standard-2X worker=1:Standard-1X --app appname
! Usage: heroku ps:scale DYNO1=AMOUNT1[:SIZE] [DYNO2=AMOUNT2 ...]
! Must specify DYNO and AMOUNT to scale.
$ heroku ps:scale web=1:standard-2X worker=1:standard-1X --app appname
! Usage: heroku ps:scale DYNO1=AMOUNT1[:SIZE] [DYNO2=AMOUNT2 ...]
! Must specify DYNO and AMOUNT to scale.

This syntax works with the old 1X, 2X, PX dynos, but not the new names.

[bharat]

I deleted my earlier comments - they were about an unrelated issue (you can't use heroku toolbelt to change the dyno type until you take an action in the web ui first).

However - I believe this issue is caused by a failure in the regex here:
https://github.com/heroku/heroku/blob/master/lib/heroku/command/ps.rb#L232

Changing the \w+ to [\w-]+ resolved the problem for me:

      if change = arg.scan(/^([a-zA-Z0-9_]+)([=+-]\d+)(?::([\w-]+))?$/).first

[jdx]

fixed in 3.37.4