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Merge pull request #50561 from oxij/lib/setPrio 

lib: implement `setPrio`
gstqt5
Michael Raskin 2019-01-18 08:23:31 +00:00 committed by GitHub
parent 9f5b5fee9c 1b3629ef34
commit 4d0e1b792f
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 7 additions and 6 deletions
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2
lib/default.nix
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@ -94,7 +94,7 @@ let
callPackageWith callPackagesWith extendDerivation hydraJob
makeScope;
inherit (meta) addMetaAttrs dontDistribute setName updateName
appendToName mapDerivationAttrset lowPrio lowPrioSet hiPrio
appendToName mapDerivationAttrset setPrio lowPrio lowPrioSet hiPrio
hiPrioSet;
inherit (sources) pathType pathIsDirectory cleanSourceFilter
cleanSource sourceByRegex sourceFilesBySuffices

11
lib/meta.nix
View File

@ -41,16 +41,18 @@ rec {
let x = builtins.parseDrvName name; in "${x.name}-${suffix}-${x.version}");
/* Apply a function to each derivation and only to derivations in an attrset
/* Apply a function to each derivation and only to derivations in an attrset.
*/
mapDerivationAttrset = f: set: lib.mapAttrs (name: pkg: if lib.isDerivation pkg then (f pkg) else pkg) set;
/* Set the nix-env priority of the package.
*/
setPrio = priority: addMetaAttrs { inherit priority; };
/* Decrease the nix-env priority of the package, i.e., other
versions/variants of the package will be preferred.
*/
lowPrio = drv: addMetaAttrs { priority = 10; } drv;
lowPrio = setPrio 10;
/* Apply lowPrio to an attrset with derivations
*/
@ -60,8 +62,7 @@ rec {
/* Increase the nix-env priority of the package, i.e., this
version/variant of the package will be preferred.
*/
hiPrio = drv: addMetaAttrs { priority = -10; } drv;
hiPrio = setPrio (-10);
/* Apply hiPrio to an attrset with derivations
*/