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diff --git a/src/other_tools/git_operations/git_operations.hpp b/src/other_tools/git_operations/git_operations.hpp
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+++ b/src/other_tools/git_operations/git_operations.hpp
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+// Copyright 2022 Huawei Cloud Computing Technology Co., Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef INCLUDED_SRC_OTHER_TOOLS_GIT_OPERATIONS_GIT_OPERATIONS_HPP
+#define INCLUDED_SRC_OTHER_TOOLS_GIT_OPERATIONS_GIT_OPERATIONS_HPP
+
+#include "src/buildtool/multithreading/async_map_consumer.hpp"
+#include "src/other_tools/git_operations/git_ops_types.hpp"
+
+/// \brief Class defining the critical Git operations, i.e., those which write
+/// to the underlying Git ODB.
+/// The target_path is a mandatory argument, as it is used in a file locking
+/// mechanism, ensuring only one process at a time works on a particular
+/// repository on the file system.
+class CriticalGitOps {
+  public:
+    // This operations needs the params: target_path, message
+    // Will perform: "git init && git add . && git commit -m <message>".
+    // Called to setup first commit in new repository. Assumes folder exists.
+    // It guarantees the logger is called exactly once with fatal if failure.
+    [[nodiscard]] static auto GitInitialCommit(
+        GitOpParams const& crit_op_params,
+        AsyncMapConsumerLoggerPtr const& logger) -> GitOpValue;
+
+    // This operation needs the params: target_path
+    // Called to initialize a repository. Creates folder if not there.
+    // It guarantees the logger is called exactly once with fatal if failure.
+    [[nodiscard]] static auto GitEnsureInit(
+        GitOpParams const& crit_op_params,
+        AsyncMapConsumerLoggerPtr const& logger) -> GitOpValue;
+
+    // This operation needs the params: target_path, git_hash (commit), message
+    // Called after a git fetch to retain the commit. Assumes folder exists.
+    // It guarantees the logger is called exactly once with fatal if failure.
+    [[nodiscard]] static auto GitKeepTag(
+        GitOpParams const& crit_op_params,
+        AsyncMapConsumerLoggerPtr const& logger) -> GitOpValue;
+
+    // This operations needs the params: target_path
+    // Called to retrieve the HEAD commit hash. Assumes folder exists.
+    // It guarantees the logger is called exactly once with fatal if failure.
+    [[nodiscard]] static auto GitGetHeadId(
+        GitOpParams const& crit_op_params,
+        AsyncMapConsumerLoggerPtr const& logger) -> GitOpValue;
+
+    // This operation needs the params: target_path, branch
+    // Called to retrieve the refname of a local branch. Assumes folder exists.
+    // It guarantees the logger is called exactly once with fatal if failure.
+    [[nodiscard]] static auto GitGetBranchRefname(
+        GitOpParams const& crit_op_params,
+        AsyncMapConsumerLoggerPtr const& logger) -> GitOpValue;
+};
+
+#endif  // INCLUDED_SRC_OTHER_TOOLS_GIT_OPERATIONS_GIT_OPERATIONS_HPP
+\ No newline at end of file