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feat: locate the request file, if possible #30

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Jun 20, 2022
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feat: locate the request file, if possible #30

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18 changes: 17 additions & 1 deletion lib/make.nix
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Original file line number Diff line number Diff line change
@@ -1,8 +1,24 @@
{ pkgs, lib }:
let
# compat: setDefaultModuleLocation is a relatively recent addition to pkgs.lib
setDefaultModuleLocation = pkgs.lib.setDefaultModuleLocation or (file: m:
{ _file = file; imports = [ m ]; }
);
in
request:
let
requestLocation = (builtins.unsafeGetAttrPos "configData" request).file or null;

# Compile the request into its module equivalent
userRequest = lib.mkRequest [ request ];
userRequest =
let
maybeLocatedRequest =
if requestLocation == null then
request
else
setDefaultModuleLocation requestLocation request;
in
lib.mkRequest [ maybeLocatedRequest ];

# The defined interface between Nixago and an engine is that it takes exactly
# one parameter: an instance of the request module. The result should be a
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