nixpkgs-suyu/maintainers/scripts/find-tarballs.nix

51 lines
1.6 KiB
Nix
Raw Normal View History

# This expression returns a list of all fetchurl calls used by expr.
2014-02-19 13:01:33 +01:00
with import ../.. { };
with lib;
{ expr }:
2014-02-19 13:01:33 +01:00
let
root = expr;
2014-02-19 13:01:33 +01:00
uniqueUrls = map (x: x.file) (genericClosure {
startSet = map (file: { key = file.url; inherit file; }) urls;
operator = const [ ];
});
urls = map (drv: { url = head (drv.urls or [ drv.url ]); hash = drv.outputHash; type = drv.outputHashAlgo; name = drv.name; }) fetchurlDependencies;
2014-02-19 13:01:33 +01:00
fetchurlDependencies =
filter
(drv: drv.outputHash or "" != "" && drv.outputHashMode or "flat" == "flat"
&& drv.postFetch or "" == "" && (drv ? url || drv ? urls))
dependencies;
2014-02-19 13:01:33 +01:00
dependencies = map (x: x.value) (genericClosure {
startSet = map keyDrv (derivationsIn' root);
operator = { key, value }: map keyDrv (immediateDependenciesOf value);
});
derivationsIn' = x:
if !canEval x then []
else if isDerivation x then optional (canEval x.drvPath) x
else if isList x then concatLists (map derivationsIn' x)
2019-01-24 16:01:49 +01:00
else if isAttrs x then concatLists (mapAttrsToList (n: v: addErrorContext "while finding tarballs in '${n}':" (derivationsIn' v)) x)
2014-02-19 13:01:33 +01:00
else [ ];
keyDrv = drv: if canEval drv.drvPath then { key = drv.drvPath; value = drv; } else { };
immediateDependenciesOf = drv:
concatLists (mapAttrsToList (n: v: derivationsIn v) (removeAttrs drv (["meta" "passthru"] ++ optionals (drv?passthru) (attrNames drv.passthru))));
2014-02-19 13:01:33 +01:00
derivationsIn = x:
if !canEval x then []
else if isDerivation x then optional (canEval x.drvPath) x
else if isList x then concatLists (map derivationsIn x)
else [ ];
canEval = val: (builtins.tryEval val).success;
in uniqueUrls