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|
{
stdenv,
lib,
runCommand,
includeGrammarIf ? _: true,
fetchFromGitHub,
fetchgit,
...
}: let
# similiar to https://github.com/helix-editor/helix/blob/23.05/grammars.nix
grammars = builtins.fromJSON (builtins.readFile ./language-grammars.json);
isGitGrammar = grammar:
builtins.hasAttr "source" grammar
&& builtins.hasAttr "git" grammar.source
&& builtins.hasAttr "rev" grammar.source;
isGitHubGrammar = grammar: lib.hasPrefix "https://github.com" grammar.source.git;
toGitHubFetcher = url: let
match = builtins.match "https://github\.com/([^/]*)/([^/]*)/?" url;
in {
owner = builtins.elemAt match 0;
repo = builtins.elemAt match 1;
};
gitGrammars = builtins.filter isGitGrammar grammars;
buildGrammar = grammar: let
gh = toGitHubFetcher grammar.source.git;
sourceGit = fetchgit {
url = grammar.source.git;
inherit (grammar.source) rev sha256;
};
sourceGitHub = fetchFromGitHub {
owner = gh.owner;
repo = gh.repo;
inherit (grammar.source) rev sha256;
};
source =
if isGitHubGrammar grammar
then sourceGitHub
else sourceGit;
in
stdenv.mkDerivation rec {
# similar to tree-sitter grammar generation
pname = "helix-tree-sitter-grammar-${grammar.name}";
version = grammar.source.rev;
src =
if builtins.hasAttr "subpath" grammar.source
then "${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
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
'';
};
grammarsToBuild = builtins.filter includeGrammarIf gitGrammars;
builtGrammars =
builtins.map (grammar: {
inherit (grammar) name;
artifact = buildGrammar grammar;
})
grammarsToBuild;
grammarLinks =
builtins.map (grammar: "ln -s ${grammar.artifact}/${grammar.name}.so $out/${grammar.name}.so")
builtGrammars;
in
runCommand "helix-tree-sitter-grammars" {} ''
mkdir -p $out
${builtins.concatStringsSep "\n" grammarLinks}
''
|
