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38419c65ce
This improves the metadata generation, previously it would take any
"license" entry from the nuspec, and tried to match it to an spdx ID from
"lib.licenses".
Sometimes however licenses are provided in plain-text, which we
obviously cannot cleanly resolve. This resulted in in useless information
("LICENSE.txt") being written to "meta.license".
39 lines
1.2 KiB
Nix
39 lines
1.2 KiB
Nix
{ dotnetPackages, lib, xml2, stdenvNoCC }:
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{ name
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, description ? ""
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, deps ? []
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}:
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let
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nuget-source = stdenvNoCC.mkDerivation rec {
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inherit name;
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meta.description = description;
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nativeBuildInputs = [ dotnetPackages.Nuget xml2 ];
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buildCommand = ''
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export HOME=$(mktemp -d)
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mkdir -p $out/{lib,share}
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${lib.concatMapStringsSep "\n" (dep: ''
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nuget init "${dep}" "$out/lib"
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'') deps}
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# Generates a list of all licenses' spdx ids, if available.
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# Note that this currently ignores any license provided in plain text (e.g. "LICENSE.txt")
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find "$out/lib" -name "*.nuspec" -exec sh -c \
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"NUSPEC=\$(xml2 < {}) && echo "\$NUSPEC" | grep license/@type=expression | tr -s \ '\n' | grep "license=" | cut -d'=' -f2" \
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\; | sort -u > $out/share/licenses
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'';
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} // { # We need data from `$out` for `meta`, so we have to use overrides as to not hit infinite recursion.
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meta.licence = let
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depLicenses = lib.splitString "\n" (builtins.readFile "${nuget-source}/share/licenses");
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in (lib.flatten (lib.forEach depLicenses (spdx:
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if (spdx != "")
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then lib.getLicenseFromSpdxId spdx
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else []
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)));
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};
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in nuget-source
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