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Heroku CLI - how to disable animations and colours

The heroku cli for some commands displays a nice looking "loading" animation and colours: ⣟, ⣯, ⣷, ...

In some logging systems, this is not well supported and pollutes them with:

[1A[13C⣟[1B[G[2K[1A[13C⣯[1B[G[2K[1A[13C⣷[1B[G[2K[1A[13C⣾[1B[G[2K[1A[13C⣽

Is there a way to disable these animations and potentially even colours?

Solution

  • It looks like if the TERM env var is set to dumb e.g. TERM=dumb then download progress is disabled, see:

    https://github.com/heroku/cli/blob/master/packages/pg-v5/lib/download.js#L9

    Perhaps it would be helpful if it was documented.