91d02d8c84
Most of the ecosystem has moved to this formatter, and many people configured their editors to autoformat it with this formatter. Closes: https://git.snix.dev/snix/snix/issues/62 Change-Id: Icf39e7836c91fc2ae49fbe22a40a639105bfb0bd Reviewed-on: https://cl.snix.dev/c/snix/+/30671 Reviewed-by: Florian Klink <flokli@flokli.de> Tested-by: besadii Autosubmit: Ilan Joselevich <personal@ilanjoselevich.com>
58 lines
1.2 KiB
Nix
58 lines
1.2 KiB
Nix
{
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depot,
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lib,
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pkgs,
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...
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}:
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let
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inherit (lib)
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fix
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pipe
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mapAttrsToList
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isAttrs
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concatLines
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isString
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isDerivation
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isPath
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;
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inherit (depot.nix.utils) isReferencablePath;
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esc =
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s:
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lib.escapeShellArg # ensure paths import into store
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"${s}";
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writeTreeAtPath =
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path: tree:
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''
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mkdir -p "$out/"${esc path}
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''
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+ pipe tree [
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(mapAttrsToList (
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k: v:
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if isReferencablePath v then
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"cp -R --reflink=auto ${esc "${v}"} \"$out/\"${esc path}/${esc k}"
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else if lib.isAttrs v then
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writeTreeAtPath (path + "/" + k) v
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else
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throw "invalid type (expected path, derivation, string with context, or attrs)"
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))
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concatLines
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];
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/*
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Create a directory tree specified by a Nix attribute set structure.
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Each value in `tree` should either be a file, a directory, or another tree
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attribute set. Those paths will be written to a directory tree
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corresponding to the structure of the attribute set.
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Type: string -> attrSet -> derivation
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*/
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writeTree = name: tree: pkgs.runCommandLocal name { } (writeTreeAtPath "" tree);
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in
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# __functor trick so readTree can add the tests attribute
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{
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__functor = _: writeTree;
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}
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