lalrpop: init at 0.20.0

pkgs/development/tools/lalrpop/default.nix

@@ -0,0 +1,46 @@
+{ lib
+, rustPlatform
+, rust
+, fetchFromGitHub
+, substituteAll
+, stdenv
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "lalrpop";
+  version = "0.20.0";
+
+  src = fetchFromGitHub {
+    owner = "lalrpop";
+    repo = "lalrpop";
+    # there's no tag for 0.20.0
+    rev = "1584ddb243726195b540fdd2b3ccf693876288e0";
+    # rev = version;
+    hash = "sha256-aYlSR8XqJnj76Hm3MFqfA5d9L3SO/iCCKpzOES5YQGY=";
+  };
+
+  cargoHash = "sha256-JaU5ZJbmlV/HfFT/ODpB3xFjZc2XiljhEVz/dql8o/c=";
+
+  patches = [
+    (substituteAll {
+      src = ./use-correct-binary-path-in-tests.patch;
+      target_triple = rust.toRustTarget stdenv.hostPlatform;
+    })
+  ];
+
+  buildAndTestSubdir = "lalrpop";
+
+  # there are some tests in lalrpop-test and some in lalrpop
+  checkPhase = ''
+    buildAndTestSubdir=lalrpop-test cargoCheckHook
+    cargoCheckHook
+  '';
+
+  meta = with lib; {
+    description = "LR(1) parser generator for Rust";
+    homepage = "https://github.com/lalrpop/lalrpop";
+    changelog = "https://github.com/lalrpop/lalrpop/blob/${src.rev}/RELEASES.md";
+    license = with licenses; [ asl20 /* or */ mit ];
+    maintainers = with maintainers; [ chayleaf ];
+  };
+}

pkgs/development/tools/lalrpop/use-correct-binary-path-in-tests.patch

@@ -0,0 +1,13 @@
+diff --git a/lalrpop-test/src/lib.rs b/lalrpop-test/src/lib.rs
+index cb4f2b0..725b0d4 100644
+--- a/lalrpop-test/src/lib.rs
++++ b/lalrpop-test/src/lib.rs
+@@ -1089,7 +1089,7 @@ fn verify_lalrpop_generates_itself() {
+     // Don't remove the .rs file that already exist
+     fs::copy(&grammar_file, &copied_grammar_file).expect("no grammar file found");
+ 
+-    assert!(Command::new("../target/debug/lalrpop")
++    assert!(Command::new("../target/@target_triple@/release/lalrpop")
+         .args([
+             "--force",
+             "--no-whitespace",

pkgs/top-level/all-packages.nix

@@ -9416,6 +9416,8 @@ with pkgs;
 
   lalezar-fonts = callPackage ../data/fonts/lalezar-fonts { };
 
+  lalrpop = callPackage ../development/tools/lalrpop { };
+
   last-resort = callPackage ../data/fonts/last-resort { };
 
   ldc = callPackage ../development/compilers/ldc { };