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34 lines
893 B
Nix
34 lines
893 B
Nix
{ nerdfonts
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, python3
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, runCommand
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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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src = nerdfonts.override { fonts = [ "DejaVuSansMono" ]; };
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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(0, bb[1])
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pen.lineTo(0, bb[3])
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pen.lineTo(-150, bb[3])
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pen.lineTo(-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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runCommand "bck-nerdfont" { inherit src; } ''
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find $src -name '*Complete.ttf' -exec install -D -t $out/share/fonts/truetype {} \;
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find $out -name '*Complete.ttf' -exec ${postprocess} {} \;
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''
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