feat: generate bindings with ffigen

.gitignore

@@ -1,3 +1,4 @@
+.vscode/
 .packages
 .dart_tool
 .pub

analysis_options.yaml

@@ -4,3 +4,6 @@ linter:
     - file_names
     - prefer_const_constructors
     - sort_constructors_first
+analyzer:
+  exclude:
+    - lib/src/bindings/libgit2_bindings.dart

lib/libgit2dart.dart

@@ -0,0 +1,2 @@
+export 'src/repository.dart';
+export 'src/error.dart';

lib/src/bindings/repository.dart

@@ -0,0 +1,89 @@
+import 'dart:ffi';
+import 'package:ffi/ffi.dart';
+import '../error.dart';
+import 'libgit2_bindings.dart';
+import '../util.dart';
+
+/// Attempt to open an already-existing repository at [path].
+///
+/// The [path] can point to either a normal or bare repository.
+///
+/// Throws a [LibGit2Error] if error occured.
+Pointer<Pointer<git_repository>> open(String path) {
+  final out = calloc<Pointer<git_repository>>();
+  final pathC = path.toNativeUtf8().cast<Int8>();
+  final error = libgit2.git_repository_open(out, pathC);
+  calloc.free(pathC);
+
+  if (error < 0) {
+    throw LibGit2Error(error, libgit2.git_error_last());
+  }
+
+  return out;
+}
+
+/// Attempt to open an already-existing bare repository at [bare_path].
+///
+/// The [bare_path] can point to only a bare repository.
+///
+/// Throws a [LibGit2Error] if error occured.
+Pointer<Pointer<git_repository>> openBare(String bare_path) {
+  final out = calloc<Pointer<git_repository>>();
+  final error = libgit2.git_repository_open_bare(
+      out, bare_path.toNativeUtf8().cast<Int8>());
+
+  if (error < 0) {
+    throw LibGit2Error(error, libgit2.git_error_last());
+  }
+
+  return out;
+}
+
+/// Returns the path to the `.git` folder for normal repositories or the
+/// repository itself for bare repositories.
+String path(Pointer<git_repository> repo) {
+  final path = libgit2.git_repository_path(repo);
+  return path.cast<Utf8>().toDartString();
+}
+
+/// Get the currently active namespace for this repository.
+///
+/// If there is no namespace, or the namespace is not a valid utf8 string,
+/// empty string is returned.
+String getNamespace(Pointer<git_repository> repo) {
+  final namespace = libgit2.git_repository_get_namespace(repo);
+  if (namespace == nullptr) {
+    return '';
+  } else {
+    return namespace.cast<Utf8>().toDartString();
+  }
+}
+
+/// Tests whether this repository is a bare repository or not.
+bool isBare(Pointer<git_repository> repo) {
+  final result = libgit2.git_repository_is_bare(repo);
+  return result == 1 ? true : false;
+}
+
+/// Find a single object, as specified by a [spec] string.
+///
+/// Throws a [LibGit2Error] if error occured.
+///
+/// The returned object should be released when no longer needed.
+Pointer<Pointer<git_object>> revParseSingle(
+  Pointer<git_repository> repo,
+  String spec,
+) {
+  final out = calloc<Pointer<git_object>>();
+  final error = libgit2.git_revparse_single(
+    out,
+    repo,
+    spec.toNativeUtf8().cast<Int8>(),
+  );
+
+  if (error < 0) {
+    throw LibGit2Error(error, libgit2.git_error_last());
+  }
+
+  return out;
+}

pubspec.yaml

@@ -1,6 +1,6 @@
-name: libgit2_dart
-
-description: Dart bindings for libgit2
+name: libgit2dart
+description: Dart bindings to libgit2
+version: 0.0.1
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
@@ -9,15 +9,17 @@ dependencies:
 
 dev_dependencies:
   pedantic: ^1.11.0
-  ffigen: ^3.0.0
+  ffigen: ^3.1.0-dev.1
 
 ffigen:
-  output: "./lib/src/libgit2_bindings.dart"
+  output: "lib/src/libgit2_bindings.dart"
   headers:
     entry-points:
-      - "./src/headers/"
+      - "libgit2-1.1.0/headers/*.h"
   name: "Libgit2"
   description: "Bindings to libgit2"
   comments:
     style: any
     length: full
+  llvm-path:
+    - "/usr/lib64/libclang.so"