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https://github.com/helix-editor/helix.git
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e01c53551d
Here we perform a shallow fetch using builtins.fetchTree. In order to make this work, we need to specify the `ref' for any repository that doesn't have `master' as its default branch (I'm not sure why this limitation exists since we don't need this when performing the shallow fetch in `--grammar build') This `ref' field is ignored by helix, so I have left it undocumented for now, but I could be open to documenting it.
90 lines
2.6 KiB
Nix
90 lines
2.6 KiB
Nix
{ stdenv, lib, runCommand, yj }:
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let
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# HACK: nix < 2.6 has a bug in the toml parser, so we convert to JSON
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# before parsing
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languages-json = runCommand "languages-toml-to-json" { } ''
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${yj}/bin/yj -t < ${./languages.toml} > $out
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'';
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languagesConfig =
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builtins.fromJSON (builtins.readFile (builtins.toPath languages-json));
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isGitGrammar = (grammar:
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builtins.hasAttr "source" grammar && builtins.hasAttr "git" grammar.source
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&& builtins.hasAttr "rev" grammar.source);
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gitGrammars = builtins.filter isGitGrammar languagesConfig.grammar;
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buildGrammar = grammar:
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let
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source = builtins.fetchTree {
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type = "git";
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url = grammar.source.git;
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rev = grammar.source.rev;
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ref = grammar.source.ref or "HEAD";
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shallow = true;
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};
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in stdenv.mkDerivation rec {
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# see https://github.com/NixOS/nixpkgs/blob/fbdd1a7c0bc29af5325e0d7dd70e804a972eb465/pkgs/development/tools/parsing/tree-sitter/grammar.nix
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pname = "helix-tree-sitter-${grammar.name}";
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version = grammar.source.rev;
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src = if builtins.hasAttr "subpath" grammar.source then
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"${source}/${grammar.source.subpath}"
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else
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source;
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dontUnpack = true;
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dontConfigure = true;
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FLAGS = [
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"-I${src}/src"
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"-g"
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"-O3"
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"-fPIC"
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"-fno-exceptions"
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"-Wl,-z,relro,-z,now"
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];
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NAME = grammar.name;
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buildPhase = ''
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runHook preBuild
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if [[ -e "$src/src/scanner.cc" ]]; then
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$CXX -c "$src/src/scanner.cc" -o scanner.o $FLAGS
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elif [[ -e "$src/src/scanner.c" ]]; then
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$CC -c "$src/src/scanner.c" -o scanner.o $FLAGS
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fi
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$CC -c "$src/src/parser.c" -o parser.o $FLAGS
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$CXX -shared -o $NAME.so *.o
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ls -al
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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mkdir $out
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mv $NAME.so $out/
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runHook postInstall
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'';
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# Strip failed on darwin: strip: error: symbols referenced by indirect symbol table entries that can't be stripped
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fixupPhase = lib.optionalString stdenv.isLinux ''
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runHook preFixup
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$STRIP $out/$NAME.so
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runHook postFixup
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'';
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};
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builtGrammars = builtins.map (grammar: {
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inherit (grammar) name;
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artifact = buildGrammar grammar;
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}) gitGrammars;
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grammarLinks = builtins.map (grammar:
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"ln -s ${grammar.artifact}/${grammar.name}.so $out/${grammar.name}.so")
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builtGrammars;
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in runCommand "consolidated-helix-grammars" { } ''
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mkdir -p $out
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${builtins.concatStringsSep "\n" grammarLinks}
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''
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