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lib: remove unused facts utils

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This commit is contained in:
Johannes Kirschbauer
2025-10-12 17:49:05 +02:00
parent 38712d6fe0
commit 347668a57f
2 changed files with 0 additions and 72 deletions
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1
lib/default.nix
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@@ -28,7 +28,6 @@ lib.fix (
# Plain imports.
introspection = import ./introspection { inherit lib; };
jsonschema = import ./jsonschema { inherit lib; };
facts = import ./facts.nix { inherit lib; };
docs = import ./docs.nix { inherit lib; };
# flakes

71
lib/facts.nix
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@@ -1,71 +0,0 @@
{ lib, ... }:
clanDir:
let
allMachineNames = lib.mapAttrsToList (name: _: name) (builtins.readDir clanDir);
getFactPath = machine: fact: "${clanDir}/machines/${machine}/facts/${fact}";
readFact =
machine: fact:
let
path = getFactPath machine fact;
in
if builtins.pathExists path then builtins.readFile path else null;
# Example:
#
# readFactFromAllMachines zerotier-ip
# => {
# machineA = "1.2.3.4";
# machineB = "5.6.7.8";
# };
readFactFromAllMachines =
fact:
let
machines = allMachineNames;
facts = lib.genAttrs machines (machine: readFact machine fact);
filteredFacts = lib.filterAttrs (_machine: fact: fact != null) facts;
in
filteredFacts;
# all given facts are are set and factvalues are never null.
#
# Example:
#
# readFactsFromAllMachines [ "zerotier-ip" "syncthing.pub" ]
# => {
# machineA =
# {
# "zerotier-ip" = "1.2.3.4";
# "synching.pub" = "1234";
# };
# machineB =
# {
# "zerotier-ip" = "5.6.7.8";
# "synching.pub" = "23456719";
# };
# };
readFactsFromAllMachines =
facts:
let
# machine -> fact -> factvalue
machinesFactsAttrs = lib.genAttrs allMachineNames (
machine: lib.genAttrs facts (fact: readFact machine fact)
);
# remove all machines which don't have all facts set
filteredMachineFactAttrs = lib.filterAttrs (
_machine: values: builtins.all (fact: values.${fact} != null) facts
) machinesFactsAttrs;
in
filteredMachineFactAttrs;
in
{
inherit
allMachineNames
getFactPath
readFact
readFactFromAllMachines
readFactsFromAllMachines
;
}