Add libgit2 lib with source

.gitignore

@@ -12,11 +12,24 @@ api.json
 
 # Binaries
 bin/
+intermediate/
+build/
 *.dll
 *.obj
 *.so
 *.dylib
+*.pdb
+*.ilk
 *.exe
 *.os
 *.out
 .import/
+
+# Binaries for distribution
+!/demo/bin/
+!libgitapi.dll
+!libgitapi.so
+!libgitapi.dylib
+!git2.lib
+!libgit.a
+

SConstruct

@@ -18,6 +18,8 @@ opts.Add(PathVariable('target_name', 'The library name.', 'libgitapi', PathVaria
 godot_headers_path = "godot-cpp/godot_headers/"
 cpp_bindings_path = "godot-cpp/"
 cpp_library = "libgodot-cpp"
+libgit2_lib_path = "demo/bin/"
+libgit2_include_path = "godot-git-plugin/thirdparty/libgit2/include/"
 
 # only support 64 at this time..
 bits = 64
@@ -41,6 +43,7 @@ if env['platform'] == '':
 if env['platform'] == "osx":
     env['target_path'] += 'osx/'
     cpp_library += '.osx'
+    libgit2_lib_path += 'osx/'
     if env['target'] in ('debug', 'd'):
         env.Append(CCFLAGS = ['-g','-O2', '-arch', 'x86_64'])
         env.Append(LINKFLAGS = ['-arch', 'x86_64'])
@@ -51,6 +54,7 @@ if env['platform'] == "osx":
 elif env['platform'] in ('x11', 'linux'):
     env['target_path'] += 'x11/'
     cpp_library += '.linux'
+    libgit2_lib_path += 'x11/'
     if env['target'] in ('debug', 'd'):
         env.Append(CCFLAGS = ['-fPIC', '-g3','-Og', '-std=c++17'])
     else:
@@ -59,6 +63,7 @@ elif env['platform'] in ('x11', 'linux'):
 elif env['platform'] == "windows":
     env['target_path'] += 'win64/'
     cpp_library += '.windows'
+    libgit2_lib_path += 'win64/'
     # This makes sure to keep the session environment variables on windows,
     # that way you can run scons in a vs 2017 prompt and it will find all the required tools
     env.Append(ENV = os.environ)
@@ -76,13 +81,13 @@ else:
 
 cpp_library += '.' + str(bits)
 
-# make sure our binding library is properly includes
+# make sure our binding library properly includes
 env.Append(CPPPATH=['.', godot_headers_path, cpp_bindings_path + 'include/', cpp_bindings_path + 'include/core/', cpp_bindings_path + 'include/gen/'])
-env.Append(LIBPATH=[cpp_bindings_path + 'bin/'])
-env.Append(LIBS=[cpp_library])
+env.Append(LIBPATH=[cpp_bindings_path + 'bin/', libgit2_lib_path])
+env.Append(LIBS=[cpp_library, 'git2'])
 
 # tweak this if you want to use different folders, or more folders, to store your source code in.
-env.Append(CPPPATH=['godot-git-plugin/src/'])
+env.Append(CPPPATH=['godot-git-plugin/src/', libgit2_include_path])
 sources = Glob('godot-git-plugin/src/*.cpp')
 
 library = env.SharedLibrary(target=env['target_path'] + env['target_name'] , source=sources)

demo/git_api.gdns

@@ -3,6 +3,7 @@
 [ext_resource path="res://git_api.gdnlib" type="GDNativeLibrary" id=1]
 
 [resource]
+resource_name = "GitAPI"
 class_name = "GitAPI"
 library = ExtResource( 1 )
 script_class_name = "GitAPI"

demo/project.godot

@@ -21,7 +21,6 @@ _global_script_class_icons={
 [application]
 
 config/name="demo"
-run/main_scene="res://demo.tscn"
 config/icon="res://icon.png"
 
 [gdnative]

godot-git-plugin/godot-git-plugin.vcxproj

@@ -70,8 +70,8 @@
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <IncludePath>.\src\;..\godot-cpp\godot_headers\;..\godot-cpp\include\gen;..\godot-cpp\include\core\;..\godot-cpp\include\;$(IncludePath)</IncludePath>
-    <LibraryPath>..\godot-cpp\bin;$(LibraryPath)</LibraryPath>
+    <IncludePath>D:\CPP Projects\godot-git-plugin\godot-git-plugin\thirdparty\libgit2\include;.\src\;..\godot-cpp\godot_headers\;..\godot-cpp\include\gen;..\godot-cpp\include\core\;..\godot-cpp\include\;$(IncludePath)</IncludePath>
+    <LibraryPath>D:\CPP Projects\godot-git-plugin\demo\bin\win64;..\godot-cpp\bin;$(LibraryPath)</LibraryPath>
     <SourcePath>.\src\;$(VC_SourcePath);</SourcePath>
     <OutDir>$(SolutionDir)..\demo\bin\win64\</OutDir>
     <IntDir>$(SolutionDir)..\demo\bin\win64\intermediate\</IntDir>
@@ -93,7 +93,7 @@
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>libgodot-cpp.windows.debug.64.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libgodot-cpp.windows.debug.64.lib;git2.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SubSystem>Console</SubSystem>
       <OutputFile>$(SolutionDir)..\demo\bin\win64\libgitapi.dll</OutputFile>
     </Link>

godot-git-plugin/src/gdlibrary.cpp

@@ -7,9 +7,6 @@ extern "C" void GDN_EXPORT godot_gdnative_init(godot_gdnative_init_options *o) {
 	godot::Godot::gdnative_init(o);
 }
 
-extern "C" void GDN_EXPORT godot_gdnative_singleton(godot_gdnative_init_options *o) {
-}
-
 extern "C" void GDN_EXPORT godot_gdnative_terminate(godot_gdnative_terminate_options *o) {
 
 	godot::Godot::gdnative_terminate(o);

godot-git-plugin/src/git_api.cpp

@@ -1,14 +1,14 @@
 #include "git_api.h"
 
-#include <ClassDB.hpp>
-
 namespace godot {
 
+bool GitAPI::is_initialized = false;
+
 void GitAPI::_register_methods() {
 
 	register_method("_process", &GitAPI::_process);
 
-	register_method("_initialiaze", &GitAPI::_initialize);
+	register_method("_initialize", &GitAPI::_initialize);
 	register_method("_get_vcs_name", &GitAPI::_get_vcs_name);
 	register_method("_get_project_name", &GitAPI::_get_project_name);
 	register_method("_get_commit_dock_panel_container", &GitAPI::_get_commit_dock_panel_container);
@@ -18,7 +18,7 @@ void GitAPI::_register_methods() {
 
 Variant GitAPI::_get_commit_dock_panel_container() {
 
-	return init_settings_panel_container;
+	return NULL;
 }
 
 Variant GitAPI::_get_initialization_settings_panel_container() {
@@ -41,7 +41,24 @@ String GitAPI::_get_vcs_name() {
 	return "Git";
 }
 
-bool GitAPI::_initialize(const String project_root_path) {
+bool GitAPI::_initialize(const String p_project_root_path) {
+
+	ERR_FAIL_COND_V(p_project_root_path == "", false);
+
+	if (is_initialized == false) {
+
+		GIT2_CALL(git_libgit2_init() == 1, false);
+		is_initialized = true;
+	} else {
+
+		return true;
+	}
+
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
+	opts.flags |= GIT_REPOSITORY_INIT_NO_REINIT;
+	GIT2_CALL(git_repository_init_ext(&repo, p_project_root_path.alloc_c_string(), &opts) == 0, false);
+
+	GIT2_CALL(git_repository_open(&repo, p_project_root_path.alloc_c_string()) == 0, false);
 
 	return true;
 }

godot-git-plugin/src/git_api.h

@@ -7,26 +7,44 @@
 #include <Godot.hpp>
 #include <PanelContainer.hpp>
 
+#include <git2.h>
+
 #define memnew(m_Class) new m_Class()
-#define memdelete(m_pointer) delete m_pointer
+
+// NULL objects are not being handled to discourage lazy destruction of objects
+#define memdelete(m_pointer) m_pointer ? WARN_PRINT("GIT API tried to delete a NULL object") : delete m_pointer;
+
+#define GIT2_CALL(m_libgit2_function_check, m_fail_return) \
+{                                                          \
+	bool res = m_libgit2_function_check;                   \
+	if (!res) {                                            \
+		const git_error *e = giterr_last();                \
+		WARN_PRINT(e->message);                            \
+		return m_fail_return;                              \
+	}                                                      \
+}
 
 namespace godot {
 
 class GitAPI : public EditorVCSInterface {
 
 	GODOT_CLASS(GitAPI, EditorVCSInterface)
 
+	static bool is_initialized;
+
 	godot::PanelContainer *init_settings_panel_container;
 	godot::Button *init_settings_button;
 
+	git_repository *repo;
+
 public:
 	static void _register_methods();
 
 	Variant _get_commit_dock_panel_container();
 	Variant _get_initialization_settings_panel_container();
 	String _get_project_name();
 	String _get_vcs_name();
-	bool _initialize(const String project_root_path);
+	bool _initialize(const String p_project_root_path);
 	bool _shut_down();
 
 	void _init();

godot-git-plugin/thirdparty/VERSIONS

@@ -0,0 +1,3 @@
+# This file lists all thirdparty libraries used in this plugin with the latest commit link of when source was picked up
+
+libgit2: https://github.com/libgit2/libgit2/commit/f039c836438f96407abc08cbd238b9102318deb2

godot-git-plugin/thirdparty/libgit2/.HEADER

@@ -0,0 +1,24 @@
+/*
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2,
+ * as published by the Free Software Foundation.
+ *
+ * In addition to the permissions in the GNU General Public License,
+ * the authors give you unlimited permission to link the compiled
+ * version of this file into combinations with other programs,
+ * and to distribute those combinations without any restriction
+ * coming from the use of this file.  (The General Public License
+ * restrictions do apply in other respects; for example, they cover
+ * modification of the file, and distribution when not linked into
+ * a combined executable.)
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */

godot-git-plugin/thirdparty/libgit2/.editorconfig

@@ -0,0 +1,15 @@
+; Check http://editorconfig.org/ for more informations
+; Top-most EditorConfig file
+root = true
+
+; tab indentation
+[*]
+indent_style = tab
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+; 4-column space indentation
+[*.md]
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = false

godot-git-plugin/thirdparty/libgit2/.gitattributes

@@ -0,0 +1 @@
+* text=auto

godot-git-plugin/thirdparty/libgit2/.github/ISSUE_TEMPLATE

@@ -0,0 +1,19 @@
+You are opening a _bug report_ against the libgit2 project: we use
+GitHub Issues for tracking bug reports and feature requests.  If you
+have a question about an API or usage, please ask on StackOverflow:
+http://stackoverflow.com/questions/tagged/libgit2.  If you want to
+have high-level discussions about the libgit2 project itself, visit
+https://github.com/libgit2/discussions.
+
+Otherwise, to report a bug, please fill out the reproduction steps
+(below) and delete these introductory paragraphs.  Thanks!
+
+### Reproduction steps
+
+### Expected behavior
+
+### Actual behavior
+
+### Version of libgit2 (release number or SHA1)
+
+### Operating system(s) tested

godot-git-plugin/thirdparty/libgit2/.gitignore

@@ -0,0 +1,37 @@
+/tests/clar.suite
+/tests/clar.suite.rule
+/tests/.clarcache
+/apidocs
+/trash-*.exe
+/libgit2.pc
+/config.mak
+*.o
+*.a
+*.exe
+*.gcda
+*.gcno
+*.gcov
+.lock-wafbuild
+.waf*
+build/
+build-amiga/
+tests/tmp/
+msvc/Debug/
+msvc/Release/
+*.sln
+*.suo
+*.vc*proj*
+*.sdf
+*.opensdf
+*.aps
+*.cmake
+!cmake/Modules/*.cmake
+.DS_Store
+*~
+.*.swp
+tags
+mkmf.log
+*.profdata
+*.profraw
+CMakeSettings.json
+.vs

godot-git-plugin/thirdparty/libgit2/.mailmap

@@ -0,0 +1,22 @@
+Vicent Martí <vicent@github.com> Vicent Marti <tanoku@gmail.com>
+Vicent Martí <vicent@github.com> Vicent Martí <tanoku@gmail.com>
+Michael Schubert <schu@schu.io> schu <schu-github@schulog.org>
+Ben Straub <bs@github.com> Ben Straub <ben@straubnet.net>
+Ben Straub <bs@github.com> Ben Straub <bstraub@github.com>
+Carlos Martín Nieto <cmn@dwim.me> <carlos@cmartin.tk>
+Carlos Martín Nieto <cmn@dwim.me> <cmn@elego.de>
+nulltoken <emeric.fermas@gmail.com> <emeric.fermas@gmail.com>
+Scott J. Goldman <scottjg@github.com> <scottjgo@gmail.com>
+Martin Woodward <martin.woodward@microsoft.com> <martinwo@microsoft.com>
+Peter Drahoš <drahosp@gmail.com> <drahosp@gmail.com>
+Adam Roben <adam@github.com> <adam@roben.org>
+Adam Roben <adam@github.com> <adam@github.com>
+Xavier L. <xavier.l@afrosoft.tk> <xavier.l@afrosoft.ca>
+Xavier L. <xavier.l@afrosoft.tk> <xavier.l@afrosoft.tk>
+Sascha Cunz <sascha@babbelbox.org> <Sascha@BabbelBox.org>
+Authmillenon <authmillenon@googlemail.com> <martin@ucsmail.de>
+Authmillenon <authmillenon@googlemail.com> <authmillenon@googlemail.com>
+Edward Thomson <ethomson@edwardthomson.com> <ethomson@microsoft.com>
+Edward Thomson <ethomson@edwardthomson.com> <ethomson@github.com>
+J. David Ibáñez <jdavid.ibp@gmail.com> <jdavid@itaapy.com>
+Russell Belfer <rb@github.com> <arrbee@arrbee.com>