mirror of
https://github.com/buckley310/nixos-config.git
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58 lines
1.4 KiB
Nix
58 lines
1.4 KiB
Nix
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{ stdenv
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, lib
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, dejavu_fonts
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, fetchFromGitHub
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, python3
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, writeScript
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}:
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let
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py = python3.withPackages (p: [ p.fontforge ]);
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# Stick a rectangle on the left edge of the
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# powerline symbol to avoid anti-aliasing artifacts
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postprocess = writeScript "postprocess.py" ''
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#!${py}/bin/python
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import fontforge, psMat, sys, os
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f = fontforge.open(sys.argv[1])
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glyph = f[0xE0B0]
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bb = glyph.boundingBox()
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pen = glyph.glyphPen(replace=False)
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pen.moveTo(bb[0],bb[1])
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pen.lineTo(bb[0],bb[3])
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pen.lineTo(bb[0]-150,bb[3])
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pen.lineTo(bb[0]-150,bb[1])
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pen.closePath()
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os.unlink(sys.argv[1])
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f.generate(sys.argv[1])
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'';
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in
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stdenv.mkDerivation {
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name = "bck-nerdfont";
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dontUnpack = true;
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src = fetchFromGitHub {
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owner = "ryanoasis";
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repo = "nerd-fonts";
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rev = "v2.1.0";
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sha256 = "j0cLZHOLyoItdvLOQVQVurY3ARtndv0FZTynaYJPR9E=";
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};
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buildPhase = ''
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# Either Octicons or FontAwesome are required. Take your pick.
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# They cause the fontlinux characters to move to the correct slots.
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# (see fontlinuxExactEncodingPosition)
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find ${dejavu_fonts}/share/fonts/truetype -name 'DejaVuSansMono*' -print0 |
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xargs -0n1 ${py}/bin/python $src/font-patcher \
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--fontlinux --octicons --powerline \
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--postprocess ${postprocess}
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'';
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installPhase = ''
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mkdir -p $out/share/fonts/truetype
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cp -v *.ttf $out/share/fonts/truetype/
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'';
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}
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