75 lines
2.1 KiB
Nix
75 lines
2.1 KiB
Nix
{ stdenv, fetchzip, lib
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# To select only certain fonts, put a list of strings to `fonts`: every key in
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# ./shas.nix is an optional font
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, fonts ? [ ] }:
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let
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# both of these files are generated via ./update.sh
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version = "version-20241013";
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fontsShas = import ./shas.nix;
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knownFonts = builtins.attrNames fontsShas;
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selectedFonts = if (fonts == [ ]) then
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knownFonts
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else
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let unknown = lib.subtractLists knownFonts fonts;
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in if (unknown != [ ]) then
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throw "Unknown font(s): ${lib.concatStringsSep " " unknown}"
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else
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fonts;
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# Filter the fonts by selectedFonts list
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filteredFonts =
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builtins.filter (fontName: builtins.elem fontName selectedFonts)
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(builtins.attrNames fontsShas);
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# Function to generate a list of srcs that look like
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# [
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# (fetchurl {
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# url = "";
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# sha256 = "sha256-abc123...";
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# })
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# (fetchurl {
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# url = "";
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# sha256 = "sha256-def456...";
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# })
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# ]
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generateUrls = fontAttrs: fontName:
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builtins.map (variant:
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let sha = fontAttrs.${variant};
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in fetchzip {
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url = "https://smc.org.in/downloads/fonts/${fontName}/${variant}.zip";
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sha256 = sha;
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stripRoot = false;
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}) (builtins.attrNames fontAttrs);
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# Generate srcs for the filtered fonts
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srcs = builtins.concatLists
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(builtins.map (fontName: generateUrls fontsShas.${fontName} fontName)
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filteredFonts);
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in stdenv.mkDerivation (finalAttrs: {
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inherit version;
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inherit srcs;
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pname = "smc-fonts";
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# sourceRoot = ".";
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buildPhase = ''
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echo "selected fonts are ${toString selectedFonts}"
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ls *.otf *.ttf
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'';
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installPhase = ''
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find -name \*.otf -exec mkdir -p $out/share/fonts/opentype/ \; -exec mv {} $out/share/fonts/opentype/ \;
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find -name \*.ttf -exec mkdir -p $out/share/fonts/truetype/ \; -exec mv {} $out/share/fonts/truetype/ \;
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'';
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meta = with lib; {
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description = "SMC typefaces";
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longDescription = ''
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Swathanthra Malayalam Computing.
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'';
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homepage = "https://smc.org.in/";
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license = licenses.ofl;
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platforms = platforms.all;
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maintainers = with maintainers; [ aashiks ];
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};
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})
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