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{ stdenv, lib, runCommand, yj }:
let
# HACK: nix < 2.6 has a bug in the toml parser, so we convert to JSON
# before parsing
languages-json = runCommand "languages-toml-to-json" { } ''
${yj}/bin/yj -t < ${./languages.toml} > $out
'';
languagesConfig =
builtins.fromJSON (builtins.readFile (builtins.toPath languages-json));
isGitGrammar = (grammar:
builtins.hasAttr "source" grammar && builtins.hasAttr "git" grammar.source
&& builtins.hasAttr "rev" grammar.source);
gitGrammars = builtins.filter isGitGrammar languagesConfig.grammar;
buildGrammar = grammar:
let
source = builtins.fetchGit {
url = grammar.source.git;
rev = grammar.source.rev;
allRefs = true;
};
in stdenv.mkDerivation rec {
# see https://github.com/NixOS/nixpkgs/blob/fbdd1a7c0bc29af5325e0d7dd70e804a972eb465/pkgs/development/tools/parsing/tree-sitter/grammar.nix
pname = "helix-tree-sitter-${grammar.name}";
version = grammar.source.rev;
src = if builtins.hasAttr "subpath" grammar.source then
"${source}/${grammar.source.subpath}"
else
source;
dontUnpack = true;
dontConfigure = true;
FLAGS = [
"-I${src}/src"
"-g"
"-O3"
"-fPIC"
"-fno-exceptions"
"-Wl,-z,relro,-z,now"
];
NAME = grammar.name;
buildPhase = ''
runHook preBuild
if [[ -e "$src/src/scanner.cc" ]]; then
$CXX -c "$src/src/scanner.cc" -o scanner.o $FLAGS
elif [[ -e "$src/src/scanner.c" ]]; then
$CC -c "$src/src/scanner.c" -o scanner.o $FLAGS
fi
$CC -c "$src/src/parser.c" -o parser.o $FLAGS
$CXX -shared -o $NAME.so *.o
ls -al
runHook postBuild
'';
installPhase = ''
runHook preInstall
mkdir $out
mv $NAME.so $out/
runHook postInstall
'';
# Strip failed on darwin: strip: error: symbols referenced by indirect symbol table entries that can't be stripped
fixupPhase = lib.optionalString stdenv.isLinux ''
runHook preFixup
$STRIP $out/$NAME.so
runHook postFixup
'';
};
builtGrammars = builtins.map (grammar: {
inherit (grammar) name;
artifact = buildGrammar grammar;
}) gitGrammars;
grammarLinks = builtins.map (grammar:
"ln -s ${grammar.artifact}/${grammar.name}.so $out/${grammar.name}.so")
builtGrammars;
in runCommand "consolidated-helix-grammars" { } ''
mkdir -p $out
${builtins.concatStringsSep "\n" grammarLinks}
''
|
