feat: add nyacc

foundation/flake.lock

@@ -3,7 +3,7 @@
     "lib": {
       "locked": {
         "lastModified": 1,
-        "narHash": "sha256-wgO96O9ALMMXtfBKuh9rYo3KIVq4nk8V7Cke4dg0MOk=",
+        "narHash": "sha256-gJODnE6vuEI+ifNgmXywIpma4/uVfRayYknVQjDJN2c=",
         "path": "../lib",
         "type": "path"
       },

foundation/src/builders/file/text/default.nix

@@ -3,6 +3,8 @@
   config,
 }: let
   system = config.aux.system;
+
+  stage0 = config.aux.foundation.stages.stage0;
 in {
   options.aux.foundation.builders.file.text = {
     build = lib.options.create {
@@ -22,6 +24,7 @@ in {
         extras ? {},
         ...
       }: let
+        source = builtins.toFile "source" contents;
         script =
           ''
             target=''${out}''${destination}
@@ -30,20 +33,18 @@ in {
             mkdir -p ''${out}''${destinationDir}
           ''
           + ''
-            cp ''${contentPath} ''${target}
+            cp ${source} ''${target}
           ''
           + lib.strings.when isExecutable ''
             chmod 555 ''${target}
           '';
         package = builtins.derivation (
-          (builtins.removeAttrs settings ["meta" "extras" "executable" "isExecutable"])
+          (builtins.removeAttrs settings ["meta" "extras" "contents" "executable" "isExecutable"])
           // {
-            inherit name system contents destination;
+            inherit name system destination;
             destinationDir = builtins.dirOf destination;
 
-            passAsFile = ["contents"];
-
-            builder = "${config.aux.foundation.stages.stage0.kaem.package}/bin/kaem";
+            builder = "${stage0.kaem.package}/bin/kaem";
 
             args = [
               "--verbose"
@@ -51,6 +52,10 @@ in {
               "--file"
               (builtins.toFile "write-text-to-file.kaem" script)
             ];
+
+            PATH = lib.paths.bin [
+              stage0.mescc-tools-extra.package
+            ];
           }
         );
       in

foundation/src/builders/kaem/default.nix

@@ -27,7 +27,7 @@ in {
       }: let
         package = builtins.derivation (
           (builtins.removeAttrs settings ["meta" "extras" "executable" "env" "deps" "script"])
-          env
+          // env
           // {
             inherit name system;
 

foundation/src/default.nix

@@ -6,6 +6,7 @@ let
     exports = ./exports;
     platform = ./platform;
     stage0 = ./stages/stage0;
+    stage1 = ./stages/stage1;
     system = ./system;
   };
 in

foundation/src/stages/stage1/default.nix

@@ -5,12 +5,14 @@
   cfg = config.aux.foundation.stages.stage1;
 in {
   includes = [
-    ./mes
+    ./nyacc
+    # ./mes
   ];
 
   config = {
     exports = {
       packages = {
+        stage1-nyacc = config.aux.foundation.stages.stage1.nyacc.package;
       };
     };
   };

foundation/src/stages/stage1/nyacc/default.nix

@@ -0,0 +1,78 @@
+{
+  lib,
+  config,
+}: let
+  cfg = config.aux.foundation.stages.stage1.nyacc;
+
+  builders = config.aux.foundation.builders;
+
+  stage0 = config.aux.foundation.stages.stage0;
+
+  pname = "nyacc";
+  version = "1.00.2";
+in {
+  options.aux.foundation.stages.stage1.nyacc = {
+    package = lib.options.create {
+      type = lib.types.package;
+      description = "The package to use for nyacc.";
+    };
+
+    meta = {
+      description = lib.options.create {
+        type = lib.types.string;
+        description = "Description for the package.";
+        default.value = "Modules for generating parsers and lexical analyzers.";
+      };
+
+      homepage = lib.options.create {
+        type = lib.types.string;
+        description = "Homepage for the package.";
+        default.value = "https://savannah.nongnu.org/projects/nyacc";
+      };
+
+      license = lib.options.create {
+        # TODO: Add a proper type for licenses.
+        type = lib.types.attrs.any;
+        description = "License for the package.";
+        default.value = lib.licenses.lgpl3Plus;
+      };
+
+      platforms = lib.options.create {
+        type = lib.types.list.of lib.types.string;
+        description = "Platforms the package supports.";
+        default.value = ["x86_64-linux" "aarch64-linux" "i686-linux"];
+      };
+    };
+
+    src = lib.options.create {
+      type = lib.types.string;
+      description = "Source for the package.";
+    };
+  };
+
+  config = {
+    aux.foundation.stages.stage1.nyacc = {
+      src = builtins.fetchurl {
+        url = "https://mirror.easyname.at/nongnu/nyacc/nyacc-${version}.tar.gz";
+        sha256 = "065ksalfllbdrzl12dz9d9dcxrv97wqxblslngsc6kajvnvlyvpk";
+      };
+
+      package = builders.kaem.build {
+        name = "${pname}-${version}";
+        meta = cfg.meta;
+
+        script = ''
+          ungz --file ${cfg.src} --output nyacc.tar
+          mkdir -p ''${out}/share
+          cd ''${out}/share
+          untar --file ''${NIX_BUILD_TOP}/nyacc.tar
+        '';
+
+        extras = {
+          #
+          guileModule = "${cfg.package}/share/${pname}-${version}/module";
+        };
+      };
+    };
+  };
+}

lib/src/strings/default.nix

@@ -130,6 +130,15 @@ lib: {
         builtins.match "[ \t\n]*" value != null;
     };
 
+    ## Return a given string if a condition is true, otherwise return
+    ## an empty string.
+    ##
+    ## @type Bool -> String -> String
+    when = condition: value:
+      if condition
+      then value
+      else "";
+
     ## A table of ASCII characters mapped to their integer character code.
     ##
     ## @type Attrs