Initial self-hosting commit

This is the initial version of our tool that is able to
build itself. In can be bootstrapped by

  ./bin/bootstrap.py

Co-authored-by: Oliver Reiche <oliver.reiche@huawei.com>
Co-authored-by: Victor Moreno <victor.moreno1@huawei.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/src/buildtool/execution_api/common/execution_api.hpp b/src/buildtool/execution_api/common/execution_api.hpp
new file mode 100644
index 00000000..92002d48
--- /dev/null
+++ b/src/buildtool/execution_api/common/execution_api.hpp
@@ -0,0 +1,78 @@
+#ifndef INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_EXECUTION_APIHPP
+#define INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_EXECUTION_APIHPP
+
+#include <map>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "gsl-lite/gsl-lite.hpp"
+#include "src/buildtool/common/artifact.hpp"  // Artifact::ObjectInfo
+#include "src/buildtool/execution_api/bazel_msg/bazel_blob_container.hpp"
+#include "src/buildtool/execution_api/bazel_msg/bazel_msg_factory.hpp"
+#include "src/buildtool/execution_api/common/execution_action.hpp"
+
+/// \brief Abstract remote execution API
+/// Can be used to create actions.
+class IExecutionApi {
+  public:
+    using Ptr = std::unique_ptr<IExecutionApi>;
+
+    IExecutionApi() = default;
+    IExecutionApi(IExecutionApi const&) = delete;
+    IExecutionApi(IExecutionApi&&) = default;
+    auto operator=(IExecutionApi const&) -> IExecutionApi& = delete;
+    auto operator=(IExecutionApi &&) -> IExecutionApi& = default;
+    virtual ~IExecutionApi() = default;
+
+    /// \brief Create a new action.
+    /// \param[in] root_digest  Digest of the build root.
+    /// \param[in] command      Command as argv vector
+    /// \param[in] output_files List of paths to output files.
+    /// \param[in] output_dirs  List of paths to output directories.
+    /// \param[in] env_vars     The environment variables to set.
+    /// \param[in] properties   Platform properties to set.
+    /// \returns The new action.
+    [[nodiscard]] virtual auto CreateAction(
+        ArtifactDigest const& root_digest,
+        std::vector<std::string> const& command,
+        std::vector<std::string> const& output_files,
+        std::vector<std::string> const& output_dirs,
+        std::map<std::string, std::string> const& env_vars,
+        std::map<std::string, std::string> const& properties) noexcept
+        -> IExecutionAction::Ptr = 0;
+
+    /// \brief Retrieve artifacts from CAS and store to specified paths.
+    /// Tree artifacts are resolved its containing file artifacts are
+    /// recursively retrieved.
+    [[nodiscard]] virtual auto RetrieveToPaths(
+        std::vector<Artifact::ObjectInfo> const& artifacts_info,
+        std::vector<std::filesystem::path> const& output_paths) noexcept
+        -> bool = 0;
+
+    /// \brief Retrieve artifacts from CAS and write to file descriptors.
+    /// Tree artifacts are not resolved and instead the raw protobuf message
+    /// will be written to fd.
+    [[nodiscard]] virtual auto RetrieveToFds(
+        std::vector<Artifact::ObjectInfo> const& artifacts_info,
+        std::vector<int> const& fds) noexcept -> bool = 0;
+
+    /// \brief Upload blobs to CAS. Uploads only the blobs that are not yet
+    /// available in CAS, unless `skip_find_missing` is specified.
+    /// \param blobs                Container of blobs to upload.
+    /// \param skip_find_missing    Skip finding missing blobs, just upload all.
+    /// NOLINTNEXTLINE(google-default-arguments)
+    [[nodiscard]] virtual auto Upload(BlobContainer const& blobs,
+                                      bool skip_find_missing = false) noexcept
+        -> bool = 0;
+
+    [[nodiscard]] virtual auto UploadTree(
+        std::vector<DependencyGraph::NamedArtifactNodePtr> const&
+            artifacts) noexcept -> std::optional<ArtifactDigest> = 0;
+
+    [[nodiscard]] virtual auto IsAvailable(
+        ArtifactDigest const& digest) const noexcept -> bool = 0;
+};
+
+#endif  // INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_EXECUTION_APIHPP