Homebrew - Tapping fails: Formulae require at least a URL on Apple M1

[mchetelat]

What happened:
Tapping results in:

Error: Invalid formula: /opt/homebrew/Library/Taps/anchore/homebrew-grype/grype.rb
formulae require at least a URL
Error: Cannot tap anchore/grype: invalid syntax in tap!

What you expected to happen:
Tapping does not fail and grype can be installed using Homebrew.

How to reproduce it (as minimally and precisely as possible):
Run brew tap anchore/grype in the specified environment

Environment:

• Output of grype version: none
• OS (e.g: cat /etc/os-release or similar): Apple M1 macOS 11.5.2

[luhring]

Hi @mchetelat, thanks for the issue! Coincidentally, this came up just the other day on our community Slack.

That user was also on an M1 Mac, and they found that running these commands enabled a successful Homebrew installation of Grype:

arch -x86_64 brew tap anchore/grype
arch -x86_64 brew install anchore/grype/grype

Having said that, the right solution is for us to start compiling and publishing Grype for darwin/arm64. So we'll leave this issue open until that's accomplished.

[mchetelat]

Hi @luhring

It works now!

✔ Vulnerability DB [updated]
✔ Loaded image
✔ Parsed image
✔ Cataloged packages [302 packages]
✔ Scanned image [417 vulnerabilities]

Thanks a lot. Shall I close the issue?

[luhring]

@mchetelat Excellent! Credit goes to @spiffcs! 👏

We can close now. We had been waiting to try this on an M1-equipped machine, but if you've done that successfully, that's great! 🎉