add hjq scroll

shelf/hjq/main.ts

@@ -0,0 +1,44 @@
+// a basic drop-in replacement for jq to handle HJSON
+// tries to preserve comments but doesn't do a very good job :(
+
+import Hjson from "npm:hjson";
+import jqModule from "npm:jq-web";
+import fs from "node:fs";
+
+const jq = await jqModule;
+
+var filter = process.argv[2];
+if (!filter) {
+    filter = '.';
+}
+
+const input = fs.readFileSync(0, 'utf8');
+
+try {
+    const data = Hjson.parse(input, { keepWsc: true });
+
+    const result = jq.json(data, filter);
+
+    // Only try to preserve comments if the result is an object or array
+    if (result !== null && typeof result === 'object') {
+        // Extract comments before transformation
+        const comments = Hjson.comments.extract(data);
+
+        // Merge comments back into the transformed result
+        if (comments) {
+            Hjson.comments.merge(comments, result);
+        }
+
+        const output = Hjson.stringify(result, {
+            keepWsc: true,
+            bracesSameLine: true
+        });
+
+        console.log(output);
+    } else {
+        console.log(JSON.stringify(result));
+    }
+} catch (error) {
+    console.error(error);
+    process.exit(1);
+}

shelf/hjq/package.nix

@@ -0,0 +1,40 @@
+{ pkgs, target }:
+pkgs.stdenv.mkDerivation rec {
+  pname = "hjq";
+  version = "0.1.0";
+  src = ./.;
+
+  __noChroot = true;
+  
+  dontStrip = true;
+
+  denort = pkgs.fetchurl {
+    url = "https://dl.deno.land/release/v${pkgs.deno.version}/denort-${target}.zip";
+    hash = "sha256-J2LfvHPbJvcOpbQOd6EmGxHDciez7tG10etK4bqQhLI=";
+  };
+
+  nativeBuildInputs = with pkgs; [ deno unzip ];
+
+  configurePhase = ''
+    export DENO_DIR=./.deno_cache;
+    mkdir -p $TMPDIR/denort
+    pushd $TMPDIR/denort
+    unzip ${denort}
+    chmod +x denort
+    popd
+  '';
+
+  buildPhase = ''
+    runHook preBuild
+
+    export DENORT_BIN="$TMPDIR/denort/denort"
+
+    deno compile --target=${target} --output app main.ts
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp app $out/bin/${pname}
+  '';
+}