nix-profile{,-daemon}.fish: Do not source twice, fmt #12252
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@ilya-bobyr Thanks for you pull request. However can you make the formatting changes a separate commit? That will make it easier to review it. |
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@Mic92 Thank you for looking at the change. I've split the formatting change into a separate commit. Or do you want the formatting to be a separate PR? P.S. I have 8 more commits on top, to remove all inconsistencies between |
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Both commits in one PR is fine. |
`nix-profile.fish` and part of `nix-profile-daemon.fish` use 4 space indentation. Which is also the indentation that the fish shell documentation is using. Reformatting a chunk of `nix-profile-daemon.fish` from 2 space indentation to 4 space indentation for consistency.
In order for the script not be sourced multiple times by the same shell instance, `__ETC_PROFILE_NIX_SOURCED` needs to be set with a `--global` flag. Both files are almost identical. And style differences make it harder to see what is actually different and keep them in sync, when it is required.
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Rebased to fix an unrelated test failure in |
Motivation
nix-profile-daemon.fishandnix-profile.fishscripts perform almost identical actions.Yet, they are written with slight differences that make it harder to see what is actually the same and what is different.
This is already discussed in #9441
I think
nix-profile-daemon.fishandnix-profile.fishmight eventually turn out to be identical or use a common implementation.This change is a step is a step in this direction.
You can see the differences between
nix-profile-daemon.fishandnix-profile.fishhere:https://gist.github.com/ilya-bobyr/c957a9f998b85833064b2d64b4ae4062
Context
A few bug fixes and indentation changes on both sides:
nix-profile-daemon.fish:When checking for repeated execution, exit before the helper function
add_pathis defined. Making sure it does not leak to the caller.Check that
$HOMEis set, as it is actually used in the configuration.Use 4 space indentation in the configuration subsection, as this is the indentation used for the rest of the file and in
nix-profile.fish.Mark
__ETC_PROFILE_NIX_SOURCEDas--globalas, by default,setcreates a--localvariable that might not be visible to a subsequent execution of this script in the same shell. Effectively breaking the protection.nix-profile.fish:Use early exit when checking for required environment variables and double execution.
Identical to the
nix-profile-daemon.fish.Use
__ETC_PROFILE_NIX_SOURCEDfor double execution protection, similarly tonix-profile-daemon.fish.Add 👍 to pull requests you find important.
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