Warn if Homebrew files are currently owned by another user

[Aryanvkl]

I attempted to setup strap and it failed to update Homebrew with the error Can't Create 'brew update'.

[werebus]

Hey @Aryanvkl, can you provide a bit more information? At the very least, the output of your strap.sh run - I might also ask for the --debug output.

I suspect that the issue here is that you are taking over someone else's laptop that is already mostly set up. But Homebrew operates on the assumption that your laptop only has one admin-ish user and that one user (in this case the old owner of your laptop) is the owner of the Homebrew install.

[Aryanvkl]

Of course.

Updating Homebrew: Error: Can't create brew update lock in /usr/local/var/homebrew/locks!
Fix permissions by running:
sudo chown -R avakil-af /usr/local/var/homebrew
!!! Updating Homebrew: FAILED
!!! Run '/Users/avakil-af/Downloads/strap.sh --debug' for debugging output.
!!! If you're stuck: file an issue with debugging output at:
!!! https://github.com/umts/strap/issues/new

[werebus]

Yeah, I'm feeling better about my hypothesis. Can you tell me what brew doctor outputs?

[Aryanvkl]

Sure. Its the following:

Error: Can't create brew vendor-install ruby lock in /usr/local/var/homebrew/locks!
Fix permissions by running:
sudo chown -R avakil-af /usr/local/var/homebrew
Error: Failed to upgrade Homebrew Portable Ruby!

[werebus]

Alright, I'm going to recommend that you uninstall Homebrew and try again:

sudo /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/uninstall.sh)"

(If it's been a while, you might have to re-run "Make me an Admin" first)

[Aryanvkl]

Ok. If I am not mistaken this command is for uninstalling it. So, for reinstall, do I follow the same process I did last time?

[werebus]

It seems like you've gotten past your specific issue. But I'm going to leave this open because we should provide some guidance in the script output to new devs in this situation.