Add CA certificate bundle path override for SSL issues

addons/godot-git-plugin/ca_cert_config.txt

@@ -0,0 +1,53 @@
+# CA Certificate Bundle Configuration for godot-git-plugin
+# 
+# This file allows you to specify a custom CA certificate bundle path
+# to resolve SSL certificate validation errors on all platforms.
+#
+# INSTRUCTIONS:
+# 1. Uncomment the line that matches your system
+# 2. Adjust the path if your certificates are located elsewhere
+# 3. Restart Godot after making changes
+
+#
+# ============================================================
+# LINUX - Common certificate bundle locations:
+# ============================================================
+
+# Linux (Debian/Ubuntu/Mint)
+#/etc/ssl/certs/ca-certificates.crt
+
+# Linux (RHEL/CentOS/Fedora)
+# /etc/pki/tls/certs/ca-bundle.crt
+
+# Linux (OpenSUSE)
+# /etc/ssl/ca-bundle.pem
+
+# Custom path
+# /path/to/your/ca-bundle.crt
+
+# ============================================================
+# MACOS - Common certificate bundle locations:
+# ============================================================
+
+# macOS (Homebrew OpenSSL)
+# /usr/local/etc/openssl@3/cert.pem
+
+# macOS (System)
+# /etc/ssl/cert.pem
+
+# Custom path
+# /path/to/your/ca-bundle.crt
+
+# ============================================================
+# WINDOWS - Common certificate bundle locations:
+# ============================================================
+
+# Use forward slashes (/) in paths, even on Windows
+# Git backend selection during installation doesn't affect this plugin
+# Git for Windows (works with both OpenSSL and Secure Channel installations)
+# Possible Windows Paths for cert included with Git
+# C:/Program Files/Git/mingw64/etc/ssl/certs/ca-bundle.crt
+# C:/Program Files/Git/usr/ssl/certs/ca-bundle.crt
+
+# Custom path
+# C:/path/to/your/ca-bundle.crt

godot-git-plugin/src/git_plugin.cpp

@@ -29,8 +29,37 @@
 
 #define COMMA ,
 
+godot::String get_plugin_base_path() {
+	return "res://addons/godot-git-plugin/";
+}
+
 void GitPlugin::_bind_methods() {
-	// Doesn't seem to require binding functions for now
+	godot::ClassDB::bind_method(godot::D_METHOD("set_ca_bundle_path", "path"), &GitPlugin::_set_ca_bundle_path);
+}
+
+void GitPlugin::_set_ca_bundle_path(const godot::String &path) {
+	// Store path for later use. If empty, default runtime behavior remains unchanged.
+	ca_bundle_path = path;
+
+	if (!ca_bundle_path.is_empty()) {
+		// Normalize path (convert backslashes to forward slashes)
+		godot::String normalized_path = ca_bundle_path.replace("\\", "/");
+
+		// Convert to C string
+		std::string path_str = std::string(normalized_path.utf8().get_data());
+
+		// Tell libgit2 to use this certificate file
+		int error = git_libgit2_opts(GIT_OPT_SET_SSL_CERT_LOCATIONS, path_str.c_str(), NULL);
+
+		if (error == 0) {
+			godot::UtilityFunctions::print("GitPlugin: CA bundle set to ", normalized_path);
+		} else {
+			const git_error *e = git_error_last();
+			godot::UtilityFunctions::print("GitPlugin: Failed to set CA bundle: ", e ? e->message : "unknown error");
+		}
+	} else {
+		godot::UtilityFunctions::print("GitPlugin: CA bundle cleared");
+	}
 }
 
 GitPlugin::GitPlugin() {
@@ -701,6 +730,24 @@ bool GitPlugin::_initialize(const godot::String &project_path) {
 		create_gitignore_and_gitattributes();
 	}
 
+	godot::String config_path = "res://addons/godot-git-plugin/ca_cert_config.txt";
+	if (godot::FileAccess::file_exists(config_path)) {
+		godot::UtilityFunctions::print("GitPlugin: file_exists ", config_path);
+		godot::Ref<godot::FileAccess> file =
+				godot::FileAccess::open(config_path, godot::FileAccess::READ);
+		if (file.is_valid()) {
+			while (!file->eof_reached()) {
+				godot::String line = file->get_line().strip_edges();
+				if (line.is_empty() || line.begins_with("#")) {
+					continue;
+				}
+				_set_ca_bundle_path(line);
+				break;
+			}
+			file->close();
+		}
+	}
+
 	return true;
 }
 

godot-git-plugin/src/git_plugin.h

@@ -29,6 +29,7 @@ class GitPlugin : public godot::EditorVCSInterface {
 	git_oid pull_merge_oid = {};
 	godot::String repo_project_path;
 	std::unordered_map<git_status_t, ChangeType> map_changes;
+	godot::String ca_bundle_path;
 
 	GitPlugin();
 
@@ -56,6 +57,7 @@ class GitPlugin : public godot::EditorVCSInterface {
 	void _push(const godot::String &remote, bool force) override;
 	void _fetch(const godot::String &remote) override;
 	godot::TypedArray<godot::Dictionary> _get_line_diff(const godot::String &file_path, const godot::String &text) override;
+	void _set_ca_bundle_path(const godot::String &path);
 
 	// Helpers
 	godot::TypedArray<godot::Dictionary> _parse_diff(git_diff *p_diff);