1 files changed, 64 insertions, 0 deletions
diff --git a/src/main/cpp/util/path.cc b/src/main/cpp/util/path.cc
new file mode 100644
index 0000000000..efa10b81d4
--- /dev/null
+++ b/src/main/cpp/util/path.cc
@@ -0,0 +1,64 @@
+// Copyright 2018 The Bazel Authors. All rights reserved.
+//
+// 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.
+
+#include "src/main/cpp/util/path.h"
+
+#include "src/main/cpp/util/file_platform.h"
+#include "src/main/cpp/util/path_platform.h"
+
+namespace blaze_util {
+
+std::string Dirname(const std::string &path) { return SplitPath(path).first; }
+
+std::string Basename(const std::string &path) { return SplitPath(path).second; }
+
+std::string JoinPath(const std::string &path1, const std::string &path2) {
+  if (path1.empty()) {
+    // "" + "/bar"
+    return path2;
+  }
+
+  if (path1[path1.size() - 1] == '/') {
+    if (path2.find('/') == 0) {
+      // foo/ + /bar
+      return path1 + path2.substr(1);
+    } else {
+      // foo/ + bar
+      return path1 + path2;
+    }
+  } else {
+    if (path2.find('/') == 0) {
+      // foo + /bar
+      return path1 + path2;
+    } else {
+      // foo + bar
+      return path1 + "/" + path2;
+    }
+  }
+}
+
+std::string MakeAbsolute(const std::string &path) {
+  std::string converted_path = ConvertPath(path);
+  if (converted_path.empty()) {
+    return GetCwd();
+  }
+  if (IsDevNull(converted_path.c_str()) ||
+      blaze_util::IsAbsolute(converted_path)) {
+    return converted_path;
+  }
+
+  return JoinPath(blaze_util::GetCwd(), converted_path);
+}
+
+}  // namespace blaze_util