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lib: delay/remove 4 deprecation warnings #72260

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lib: delay/remove 4 deprecation warnings #72260

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danbst
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@danbst danbst commented Oct 29, 2019

This issue was seen when, for example, I've tried to nix-shell into docs:

$ nix-shell nixpkgs/doc
trace: `mkStrict' is obsolete; use `mkOverride 0' instead.
trace: `lib.nixpkgsVersion` is deprecated, use `lib.version` instead!
trace: Warning: `showVal` is deprecated and will be removed in the next release, please use `traceSeqN`
trace: lib.zip is deprecated, use lib.zipAttrsWith instead

nix-shell $

IMO it is clutter, so I did a few adjustments:

  1. For multi-arity functions I've moved deprecation warning deeper, so
    shallow function evaluation doesn't trigger warning message, only deep evaluation does that.
  2. Move function to lib/deprecated.nix.
    a) for 0-arity functions (lib.nixpkgsVersion) I've also removed deprecation
    message, as there is no way to silence it other way.

The worst thing is deprecation message removed for lib.nixpkgsVersion, but
I hope future linters will be able to scan lib/deprecated.nix and report deprecated
stuff before evaluation.

Motivation for this change
Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.
Notify maintainers

cc @

@danbst
lib: delay/remove 4 deprecation warnings
8174cc9 
This issue was seen when, for example, I've tried to nix-shell into docs:

```
$ nix-shell nixpkgs/doc
trace: `mkStrict' is obsolete; use `mkOverride 0' instead.
trace: `lib.nixpkgsVersion` is deprecated, use `lib.version` instead!
trace: Warning: `showVal` is deprecated and will be removed in the next release, please use `traceSeqN`
trace: lib.zip is deprecated, use lib.zipAttrsWith instead

nix-shell $
```

IMO it is clutter, so I did a few adjustments:

1. For multi-arity functions I've moved deprecation warning deeper, so
    shallow function evaluation doesn't trigger warning message, only deep evaluation does that.
2. Move function to `lib/deprecated.nix`.
   a) for 0-arity functions (lib.nixpkgsVersion) I've also removed deprecation
      message, as there is no way to silence it other way.

The worst thing is deprecation message removed for `lib.nixpkgsVersion`, but
I hope future linters will be able to scan `lib/deprecated.nix` and report deprecated
stuff before evaluation.
@danbst danbst requested a review from Ma27 October 29, 2019 16:46
@infinisil
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How about just getting rid of the deprecated stuff?

@danbst
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danbst commented Nov 4, 2019

those are not used in nixpkgs at all, only as a compat layer.

There is also that deprecated.nix, which has lots of to-delete stuff. Here I've tried to delay this "delete deprecated stuff" action.

@infinisil
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  • mkStrict: Marked as obsolete for over 5 years since 90a7711
  • nixpkgsVersion: Marked as deprecated for over a year since 9274ea3
  • showVal: Marked as deprecated for over a year since a7fdd10
  • zip: Marked as deprecated for over 6 years since fcbc4fe

I think we can get rid of mkStrict and zip, the others should probably stay for a bit longer.

@infinisil
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Update on this?

@Ma27
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Ma27 commented Jul 12, 2020

@danbst may I ask what's the status on this?

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stale bot commented Jun 7, 2021

I marked this as stale due to inactivity. → More info

@stale stale bot added the 2.status: stale https://github.com/NixOS/nixpkgs/blob/master/.github/STALE-BOT.md label Jun 7, 2021
@SuperSandro2000
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This PR is really old and we are not going to undeprecate functions years later.

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@danbst @infinisil @Ma27 @SuperSandro2000 @ryantm @alyssais