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lib/meta: add getExe to get the main program of a drv

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This commit is contained in:
Artturin 2022-04-05 01:10:44 +03:00
parent daac043257
commit 379b9c8be3
2 changed files with 15 additions and 1 deletions
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2
lib/default.nix
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@ -108,7 +108,7 @@ let
makeScope makeScopeWithSplicing;
inherit (self.meta) addMetaAttrs dontDistribute setName updateName
appendToName mapDerivationAttrset setPrio lowPrio lowPrioSet hiPrio
hiPrioSet getLicenseFromSpdxId;
hiPrioSet getLicenseFromSpdxId getExe;
inherit (self.sources) pathType pathIsDirectory cleanSourceFilter
cleanSource sourceByRegex sourceFilesBySuffices
commitIdFromGitRepo cleanSourceWith pathHasContext

14
lib/meta.nix
View File

@ -126,4 +126,18 @@ rec {
lib.warn "getLicenseFromSpdxId: No license matches the given SPDX ID: ${licstr}"
{ shortName = licstr; }
);
/* Get the path to the main program of a derivation with either
meta.mainProgram or pname or name
Type: getExe :: derivation -> string
Example:
getExe pkgs.hello
=> "/nix/store/g124820p9hlv4lj8qplzxw1c44dxaw1k-hello-2.12/bin/hello"
getExe pkgs.mustache-go
=> "/nix/store/am9ml4f4ywvivxnkiaqwr0hyxka1xjsf-mustache-go-1.3.0/bin/mustache"
*/
getExe = x:
"${lib.getBin x}/bin/${x.meta.mainProgram or (lib.getName x)}";
}