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lib.extendMkDerivation: performance cleanups (#522123)

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adisbladis
2026-05-21 02:48:31 +00:00
committed by GitHub
parent 8efcb39ab2 01272740d8
commit 8abecec2ab
1 changed files with 19 additions and 25 deletions
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44
lib/customisation.nix
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@@ -30,7 +30,6 @@ let
flatten
deepSeq
extends
toFunction
id
;
inherit (lib.strings) levenshtein levenshteinAtMost;
@@ -842,14 +841,6 @@ rec {
:::
*/
extendMkDerivation =
let
extendsWithExclusion =
excludedNames: g: f: final:
let
previous = f final;
in
removeAttrs previous excludedNames // g final previous;
in
{
constructDrv,
excludeDrvArgNames ? [ ],
@@ -858,24 +849,27 @@ rec {
inheritFunctionArgs ? true,
transformDrv ? id,
}:
setFunctionArgs
{
# Adds the fixed-point style support
(
fpargs:
__functor =
self: fpargs:
transformDrv (
constructDrv (extendsWithExclusion excludeDrvArgNames extendDrvArgs (toFunction fpargs))
)
)
# Add __functionArgs
(
removeAttrs (
# Inherit the __functionArgs from the base build helper
optionalAttrs inheritFunctionArgs (removeAttrs (functionArgs constructDrv) excludeDrvArgNames)
# Recover the __functionArgs from the derived build helper
// functionArgs (extendDrvArgs { })
) excludeFunctionArgNames
)
// {
constructDrv (
final:
let
previous = if isFunction fpargs then fpargs final else fpargs;
in
removeAttrs previous excludeDrvArgNames // extendDrvArgs final previous
)
);
__functionArgs = removeAttrs (
# Inherit the __functionArgs from the base build helper
optionalAttrs inheritFunctionArgs (removeAttrs (functionArgs constructDrv) excludeDrvArgNames)
# Recover the __functionArgs from the derived build helper
// functionArgs (extendDrvArgs { })
) excludeFunctionArgNames;
inherit
# Expose to the result build helper.
constructDrv