26 lines
727 B
Nix
26 lines
727 B
Nix
# Solutions for Advent of Code 2020, written in Emacs Lisp.
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#
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# For each day a new file is created as "solution-day$n.el".
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{ depot, pkgs, ... }:
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let
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inherit (builtins) attrNames filter head listToAttrs match readDir;
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dir = readDir ./.;
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matchSolution = match "solution-(.*)\.el";
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isSolution = f: (matchSolution f) != null;
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getDay = f: head (matchSolution f);
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solutionFiles = filter (e: dir."${e}" == "regular" && isSolution e) (attrNames dir);
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solutions = map
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(f:
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let day = getDay f; in depot.nix.writeElispBin {
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name = day;
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deps = p: with p; [ dash s ht p.f ];
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src = ./. + ("/" + f);
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})
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solutionFiles;
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in
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pkgs.symlinkJoin {
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name = "aoc2020";
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paths = solutions;
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}
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