58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
// Copyright 2023 The gRPC Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef GRPC_TEST_CPP_UTIL_WINDOWS_MANIFEST_FILE_H
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#define GRPC_TEST_CPP_UTIL_WINDOWS_MANIFEST_FILE_H
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#include <grpc/support/port_platform.h>
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#ifdef GPR_WINDOWS
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#include <fstream>
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#include <string>
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#include <unordered_map>
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namespace grpc {
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namespace testing {
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std::string NormalizeFilePath(const std::string& filepath);
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// This class is used for handling Runfiles for a Bazel target on Windows (e.g.
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// the output of targets specified in the data attribute of the target). On
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// Linux/macOS, Bazel creates a runfiles tree which contains symlinks to the
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// actual runfiles. But on Windows, it only creates a MANIFEST file which
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// contains a list of <symlink relative path, absolute symlink target path>.
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// Thus one initializes a ManifestFile object with the filepath to a MANIFEST
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// file and uses it as a key-value datastore by querying the absolute symlink
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// target path with the imaginative symlink relative path. See
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// https://github.com/bazelbuild/bazel/issues/4261#issuecomment-350723457 for
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// more details.
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class ManifestFile {
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public:
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explicit ManifestFile(const std::string& filepath);
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std::string Get(const std::string& key);
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private:
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std::fstream filestream_;
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std::unordered_map<std::string, std::string> cache_;
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};
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} // namespace testing
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} // namespace grpc
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#endif // GPR_WINDOWS
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#endif // GRPC_TEST_CPP_UTIL_WINDOWS_MANIFEST_FILE_H
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