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ref: transparent eval.nix contract

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- at least to my eyes, this code formatting gives a better view about
  the gist of the eval.nix interface
This commit is contained in:
David Arnold 2022-05-26 17:47:19 -05:00
parent e309b2d4b2
commit b3ca4b1c4d
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1 changed files with 11 additions and 38 deletions
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49
src/nix/hive/eval.nix
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@ -167,33 +167,6 @@ let
value = evalNode name configs; value = evalNode name configs;
}) nodeNames); }) nodeNames);
# Exported attributes
#
# Functions are intended to be called with `nix-instantiate --eval --json`
nodes = listToAttrs (map (name: {
inherit name;
value = evalNode name (configsFor name);
}) nodeNames);
toplevel = lib.mapAttrs (name: eval: eval.config.system.build.toplevel) nodes;
deploymentConfig = lib.mapAttrs (name: eval: eval.config.deployment) nodes;
deploymentConfigSelected = names:
listToAttrs (map (name: { inherit name; value = nodes.${name}.config.deployment; }) names);
evalSelected = names: let
selected = lib.filterAttrs (name: _: elem name names) toplevel;
in selected;
evalSelectedDrvPaths = names: lib.mapAttrs (k: v: v.drvPath) (evalSelected names);
introspect = function: function {
inherit lib;
pkgs = nixpkgs;
nodes = uncheckedNodes;
};
# Add required config Key here since we don't want to eval nixpkgs # Add required config Key here since we don't want to eval nixpkgs
metaConfigKeys = [ metaConfigKeys = [
"name" "description" "name" "description"
@ -201,16 +174,16 @@ let
"allowApplyAll" "allowApplyAll"
]; ];
in rec {
# Exported attributes
#
# Functions are intended to be called with `nix-instantiate --eval --json`
nodes = listToAttrs (map (name: { inherit name; value = evalNode name (configsFor name); }) nodeNames);
toplevel = lib.mapAttrs (_: v: v.config.system.build.toplevel) nodes;
deploymentConfig = lib.mapAttrs (_: v: v.config.deployment) nodes;
deploymentConfigSelected = names: lib.filterAttrs (name: _: elem name names) deploymentConfig;
evalSelected = names: lib.filterAttrs (name: _: elem name names) toplevel;
evalSelectedDrvPaths = names: lib.mapAttrs (_: v: v.drvPath) (evalSelected names);
metaConfig = lib.filterAttrs (n: v: elem n metaConfigKeys) hive.meta; metaConfig = lib.filterAttrs (n: v: elem n metaConfigKeys) hive.meta;
in { introspect = f: f { inherit lib; pkgs = nixpkgs; nodes = uncheckedNodes; };
inherit
deploymentConfig
deploymentConfigSelected
evalSelected
evalSelectedDrvPaths
introspect
metaConfig
nodes
toplevel
;
} }