wip go 3

scripts/generate.dart

@@ -0,0 +1,90 @@
+import "dart:io";
+import "package:ffigen/ffigen.dart";
+import "package:path/path.dart";
+
+void main(List<String> args) async {
+  // Where we put the Gomuks repo and compiled library
+  final buildDir = Directory.fromUri(
+    Platform.script.resolve(join("..", "build", "gomuks")),
+  );
+  if (!await buildDir.exists()) await buildDir.create(recursive: true);
+
+  final repoDir = Directory(join(buildDir.path, "source"));
+
+  bool skipBuild = false;
+
+  final generatedSourcePath = join("src", "third_party", "gomuks.g.dart");
+  final generatedLibPath = Platform.script.resolve(
+    join("..", "lib", generatedSourcePath),
+  );
+  final bindingsFile = File(generatedLibPath.toFilePath());
+
+  if (await bindingsFile.exists() &&
+      await repoDir.exists() &&
+      !args.contains("--rebuild")) {
+    final result = await Process.run("git", [
+      "fetch",
+      "--dry-run",
+    ], workingDirectory: repoDir.path);
+
+    if ((result.stdout as String).trim().isEmpty) {
+      skipBuild = true;
+    }
+  }
+
+  if (skipBuild) {
+    return print(
+      "Gomuks build skipped: bindings and library exist and repo is up to date.",
+    );
+  }
+
+  if (await repoDir.exists()) await repoDir.delete(recursive: true);
+
+  print("Cloning Gomuks repository...");
+  final cloneResult = await Process.run("git", [
+    "clone",
+    "--branch",
+    "tulir/ffi",
+    "--depth",
+    "1",
+    "https://mau.dev/gomuks/gomuks",
+    repoDir.path,
+  ]);
+  if (cloneResult.exitCode != 0) {
+    throw Exception(
+      "Failed to clone Gomuks repository: \n${cloneResult.stderr}",
+    );
+  }
+
+  for (final name in ["libgomuks.so", "libgomuks.dylib", "libgomuks.dll"]) {
+    final libFile = File(join(buildDir.path, name));
+
+    print("Building Gomuks shared library $name...");
+    final result = await Process.run("go", [
+      "build",
+      "-o",
+      libFile.path,
+      "-buildmode=c-shared",
+    ], workingDirectory: join(repoDir.path, "pkg/ffi"));
+
+    if (result.exitCode != 0) {
+      throw Exception(
+        "Failed to build Gomuks shared library\n${result.stderr}",
+      );
+    }
+  }
+
+  print("Generating FFI Bindings...");
+  final packageRoot = Platform.script.resolve("../");
+  FfiGenerator(
+    output: Output(
+      dartFile: packageRoot.resolve("lib/src/third_party/gomuks.g.dart"),
+    ),
+    headers: Headers(
+      entryPoints: [File(join(buildDir.path, "libgomuks.h")).uri],
+      compilerOptions: ["-I${String.fromEnvironment("CPATH")}"],
+    ),
+    functions: Functions.includeAll,
+  ).generate();
+  print("Done!");
+}