Added simple git2

Author: fzakaria

src/libfetchers-tests/access-tokens.cc

@@ -1,9 +1,10 @@
 #include <gtest/gtest.h>
-#include <nlohmann/json_fwd.hpp>
+#include <nlohmann/json.hpp>
 #include <map>
 #include <optional>
 #include <set>
 #include <string>
+#include <memory>
 
 #include "nix/fetchers/fetchers.hh"
 #include "nix/fetchers/fetch-settings.hh"

src/libfetchers-tests/git-utils.cc

@@ -1,23 +1,20 @@
 #include <gmock/gmock.h>
-#include <git2/global.h>
-#include <git2/repository.h>
-#include <git2/signature.h>
-#include <git2/types.h>
-#include <git2/object.h>
-#include <git2/tag.h>
 #include <gtest/gtest.h>
-#include <git2/blob.h>
-#include <git2/tree.h>
-#include <git2/commit.h>
-#include <git2/oid.h>
 #include <string.h>
+#include <git2.h>
 #include <functional>
 #include <memory>
+#include <filesystem>
+#include <string>
 
 #include "nix/fetchers/git-utils.hh"
 #include "nix/util/file-system.hh"
 #include "nix/util/fs-sink.hh"
 #include "nix/util/error.hh"
+#include "nix/util/canon-path.hh"
+#include "nix/util/hash.hh"
+#include "nix/util/ref.hh"
+#include "nix/util/source-accessor.hh"
 
 namespace nix {
 

src/libfetchers-tests/git.cc

@@ -1,19 +1,9 @@
 #include <gtest/gtest.h>
-#include <git2/clone.h>
-#include <git2/commit.h>
-#include <git2/errors.h>
-#include <git2/global.h>
-#include <git2/index.h>
-#include <git2/oid.h>
-#include <git2/refs.h>
-#include <git2/repository.h>
-#include <git2/signature.h>
-#include <git2/submodule.h>
-#include <git2/tree.h>
-#include <git2/types.h>
+#include <git2.h>
 #include <filesystem>
 #include <memory>
 #include <string>
+#include <utility>
 
 #include "nix/store/globals.hh"
 #include "nix/store/dummy-store.hh"

src/libfetchers-tests/nix_api_fetchers.cc

@@ -1,4 +1,5 @@
 #include <gtest/gtest.h>
+#include <string>
 
 #include "nix_api_fetchers.h"
 #include "nix/store/tests/nix_api_store.hh"

src/libfetchers-tests/public-key.cc

@@ -1,10 +1,10 @@
 #include <gtest/gtest.h>
 #include <boost/container/detail/std_fwd.hpp>
 #include <nlohmann/json.hpp>
-#include <nlohmann/json_fwd.hpp>
 #include <filesystem>
 #include <string_view>
 #include <utility>
+#include <string>
 
 #include "nix/fetchers/fetchers.hh"
 #include "nix/util/tests/json-characterization.hh"