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https://github.com/nix-community/home-manager
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6311f4adc3
Removes the `uniq` constraint on `after` and `before` so that we can
merge multiple definitions for the same DAG entry:
{
dag = mkMerge [
{
foo = lib.hm.dag.entryBefore [ "bar" ] {
# definition 1
};
}
{
foo = lib.hm.dag.entryBefore [ "qux" ] {
# definition 2
};
}
{
foo = {
# definition 3
};
}
];
}
In this example `foo` will come before `bar` and `qux`.
42 lines
1.1 KiB
Nix
42 lines
1.1 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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inherit (lib)
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concatStringsSep hm mkIf mkMerge mkBefore mkAfter mkOption types;
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dag = lib.hm.dag;
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result = let
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sorted = dag.topoSort config.tested.dag;
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data = map (e: "${e.name}:${e.data}") sorted.result;
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in concatStringsSep "\n" data + "\n";
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in {
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options.tested.dag = mkOption { type = hm.types.dagOf types.commas; };
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config = {
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tested.dag = mkMerge [
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(mkIf false { never = "never"; })
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{ never2 = mkIf false "never2"; }
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{ after = mkMerge [ "after" (mkIf false "neither") ]; }
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{ before = dag.entryBefore [ "after" ] (mkIf true "before"); }
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{
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between =
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mkIf true (dag.entryBetween [ "after" ] [ "before" ] "between");
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}
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{ merged = dag.entryBefore [ "between" ] "middle"; }
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{ merged = mkBefore "left"; }
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{ merged = dag.entryBetween [ "after" ] [ "before" ] (mkAfter "right"); }
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{ merged = dag.entryBefore [ "between" ] "middle"; }
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];
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home.file."result.txt".text = result;
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nmt.script = ''
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assertFileContent \
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home-files/result.txt \
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${./dag-merge-result.txt}
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'';
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};
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}
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