piegamesandCommentator2.0
f1fbd1d095
The indentation stripping semantics of strings are fairly bad and have a few gotchas where they behave unintuitively. But the good news is, that these cases are easy to catch and can be avoided. This commit adds a warning in the parser when such strings are detected. Unfortunately Nixpkgs uses this kind of a lot, so we won't be able to actually enable this warning for a while to come. Co-authored-by: Commentator2.0 <lix@crystal-cavern.systems> Change-Id: I3b3b68c2eee4cd70959d3f4ca643cb6caf3a2217
30 lines
812 B
Nix
30 lines
812 B
Nix
{
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lib,
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runCommand,
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nix,
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nixpkgs-regression,
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}:
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let
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inherit (lib) concatStringsSep;
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# FIXME: All of these are fixed in Nixpkgs already, so clear the list on the next `nixpkgs-regression` bump
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deprecatedFeatures = [
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"broken-string-indentation"
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];
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in
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runCommand "eval-nixos"
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{
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buildInputs = [ nix ];
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env.NIX_CONFIG = "extra-deprecated-features = ${concatStringsSep " " deprecatedFeatures}";
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}
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''
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type -p nix-env
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# Note: we're filtering out nixos-install-tools because https://github.com/NixOS/nixpkgs/pull/153594#issuecomment-1020530593.
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time nix-env --store dummy:// -f ${nixpkgs-regression} -qaP --drv-path | sort | grep -v nixos-install-tools > packages
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[[ $(sha1sum < packages | cut -c1-40) = 402242fca90874112b34718b8199d844e8b03d12 ]]
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mkdir $out
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''
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