pyrox.dev
linux: parse configfile at eval-time if possible (#434608)
+21
-12
pkgs/os-specific/linux/kernel/manual-config.nix
+21
-12
pkgs/os-specific/linux/kernel/manual-config.nix
···
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lib,
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stdenv,
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buildPackages,
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-
runCommand,
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5
bc,
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bison,
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flex,
···
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readConfig =
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configfile:
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import
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(runCommand "config.nix" { } ''
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echo "{" > "$out"
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while IFS='=' read key val; do
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[ "x''${key#CONFIG_}" != "x$key" ] || continue
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no_firstquote="''${val#\"}";
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echo ' "'"$key"'" = "'"''${no_firstquote%\"}"'";' >> "$out"
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done < "${configfile}"
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echo "}" >> $out
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'').outPath;
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+
lib.listToAttrs (
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map
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(
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line:
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let
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match = lib.match "(.*)=\"?(.*)\"?" line;
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in
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{
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name = lib.elemAt match 0;
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value = lib.elemAt match 1;
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}
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)
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(
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lib.filter (line: !(lib.hasPrefix "#" line || line == "")) (
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lib.splitString "\n" (builtins.readFile configfile)
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)
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)
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);
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in
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lib.makeOverridable (
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{
···
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configfile,
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# Manually specified nixexpr representing the config
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# If unspecified, this will be autodetected from the .config
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config ? lib.optionalAttrs allowImportFromDerivation (readConfig configfile),
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config ? lib.optionalAttrs (builtins.isPath configfile || allowImportFromDerivation) (
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readConfig configfile
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),
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# Custom seed used for CONFIG_GCC_PLUGIN_RANDSTRUCT if enabled. This is
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# automatically extended with extra per-version and per-config values.
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randstructSeed ? "",