c7fc3432cd
Provides an entry point that builds and returns a combined LH + RH keyboard firmware when provided a keymap via a POST body. Wraps compilation with ccache, and includes a pre-warmed cache of the build in /tmp/ccache. To maximize chance of a direct cache hit, changes the lambda driver to always build in /tmp/build. some back of the envelope measurements (2012 xeon e3-1230v2, nixos) clean build, no cache -> 21.308 clean build, cache -> 7.145 modified keymap, clean build, cache -> 12.127
43 lines
1.2 KiB
Nix
43 lines
1.2 KiB
Nix
{ stdenv, lib, makeWrapper, ccache
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, unwrappedCC ? stdenv.cc.cc, extraConfig ? "" }:
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# copied from ccache in nixpkgs, modified to glob over prefixes. Also doesn't
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# pass lib. Why was it passing lib?
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stdenv.mkDerivation {
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name = "ccache-links";
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passthru = {
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isClang = unwrappedCC.isClang or false;
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isGNU = unwrappedCC.isGNU or false;
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};
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nativeBuildInputs = [ makeWrapper ];
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buildCommand = ''
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mkdir -p $out/bin
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wrap() {
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local cname="$(basename $1)"
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if [ -x "${unwrappedCC}/bin/$cname" ]; then
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echo "Wrapping $1"
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makeWrapper ${ccache}/bin/ccache $out/bin/$cname \
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--run ${lib.escapeShellArg extraConfig} \
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--add-flags ${unwrappedCC}/bin/$cname
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fi
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}
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wrapAll() {
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for prog in "$@"; do
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wrap "$prog"
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done
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}
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wrapAll ${unwrappedCC}/bin/{*cc,*c++,*gcc,*g++,*clang,*clang++}
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for executable in $(ls ${unwrappedCC}/bin); do
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if [ ! -x "$out/bin/$executable" ]; then
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ln -s ${unwrappedCC}/bin/$executable $out/bin/$executable
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fi
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done
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for file in $(ls ${unwrappedCC} | grep -vw bin); do
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ln -s ${unwrappedCC}/$file $out/$file
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done
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'';
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}
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