forked from clan/clan-core
lib: add fact loaders to clan lib
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f228239834
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@ -6,8 +6,9 @@
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}:
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{
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evalClanModules = import ./eval-clan-modules { inherit clan-core nixpkgs lib; };
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buildClan = import ./build-clan { inherit clan-core lib nixpkgs; };
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facts = import ./facts.nix { inherit lib; };
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inventory = import ./inventory { inherit lib clan-core; };
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jsonschema = import ./jsonschema { inherit lib; };
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modules = import ./description.nix { inherit clan-core lib; };
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buildClan = import ./build-clan { inherit clan-core lib nixpkgs; };
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}
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@ -1,19 +1,17 @@
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{ lib, machineDir, ... }:
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{ lib, ... }:
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machineDir:
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let
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allMachineNames = lib.mapAttrsToList (name: _: name) (builtins.readDir machineDir);
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getFactPath = fact: machine:
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"${machineDir}/${machine}/facts/${fact}";
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getFactPath = fact: machine: "${machineDir}/${machine}/facts/${fact}";
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readFact = fact: machine:
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readFact =
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fact: machine:
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let
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path = getFactPath fact machine;
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in
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if builtins.pathExists path then
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builtins.readFile path
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else
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null;
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if builtins.pathExists path then builtins.readFile path else null;
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# Example:
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#
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@ -22,7 +20,8 @@ let
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# machineA = "1.2.3.4";
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# machineB = "5.6.7.8";
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# };
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readFactFromAllMachines = fact:
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readFactFromAllMachines =
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fact:
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let
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machines = allMachineNames;
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facts = lib.genAttrs machines (readFact fact);
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@ -47,18 +46,27 @@ let
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# "synching.pub" = "23456719";
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# };
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# };
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readFactsFromAllMachines = facts:
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readFactsFromAllMachines =
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facts:
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let
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# machine -> fact -> factvalue
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machinesFactsAttrs = lib.genAttrs allMachineNames (machine: lib.genAttrs facts (fact: readFact fact machine));
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machinesFactsAttrs = lib.genAttrs allMachineNames (
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machine: lib.genAttrs facts (fact: readFact fact machine)
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);
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# remove all machines which don't have all facts set
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filteredMachineFactAttrs =
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lib.filterAttrs (_machine: values: builtins.all (fact: values.${fact} != null) facts)
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machinesFactsAttrs;
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filteredMachineFactAttrs = lib.filterAttrs (
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_machine: values: builtins.all (fact: values.${fact} != null) facts
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) machinesFactsAttrs;
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in
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filteredMachineFactAttrs;
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in
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{ inherit allMachineNames getFactPath readFact readFactFromAllMachines readFactsFromAllMachines; }
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{
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inherit
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allMachineNames
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getFactPath
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readFact
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readFactFromAllMachines
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readFactsFromAllMachines
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;
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}
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