From 4b05b3faefe25f284909ca24b30180fa86aa172e Mon Sep 17 00:00:00 2001
From: Paul Cristian Sarbu <paul.cristian.sarbu@huawei.com>
Date: Wed, 24 Apr 2024 15:31:28 +0200
Subject: just-mr rc: Extract location object parser in separate library

This will make it available also to just.
---
 src/buildtool/common/location.cpp | 54 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 src/buildtool/common/location.cpp

(limited to 'src/buildtool/common/location.cpp')

diff --git a/src/buildtool/common/location.cpp b/src/buildtool/common/location.cpp
new file mode 100644
index 00000000..bc3a57dc
--- /dev/null
+++ b/src/buildtool/common/location.cpp
@@ -0,0 +1,54 @@
+// Copyright 2024 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.
+
+#include "src/buildtool/common/location.hpp"
+
+#include "fmt/core.h"
+#include "src/buildtool/file_system/file_system_manager.hpp"
+#include "src/buildtool/logging/log_level.hpp"
+#include "src/buildtool/logging/logger.hpp"
+#include "src/buildtool/storage/config.hpp"
+
+auto ReadLocationObject(nlohmann::json const& location,
+                        std::optional<std::filesystem::path> const& ws_root)
+    -> std::variant<std::string, std::optional<location_res_t>> {
+    if (not location.contains("path") or not location.contains("root")) {
+        return fmt::format("Malformed location object: {}", location.dump(-1));
+    }
+    auto root = location["root"].get<std::string>();
+    auto path = location["path"].get<std::string>();
+    auto base = location.contains("base") ? location["base"].get<std::string>()
+                                          : std::string(".");
+
+    std::filesystem::path root_path{};
+    if (root == "workspace") {
+        if (not ws_root) {
+            Logger::Log(LogLevel::Warning,
+                        "Not in workspace root, ignoring location {}.",
+                        location.dump(-1));
+            return std::nullopt;
+        }
+        root_path = *ws_root;
+    }
+    if (root == "home") {
+        root_path = StorageConfig::GetUserHome();
+    }
+    if (root == "system") {
+        root_path = FileSystemManager::GetCurrentDirectory().root_path();
+    }
+    return std::make_pair(std::filesystem::weakly_canonical(
+                              std::filesystem::absolute(root_path / path)),
+                          std::filesystem::weakly_canonical(
+                              std::filesystem::absolute(root_path / base)));
+}
-- 
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