[rtefsutils] Add LexicallyNormal function (#663)

libs/rtefsutils/include/RteFsUtils.h

@@ -223,6 +223,13 @@ class RteFsUtils
   */
   static std::string ParentPath(const std::string& path);
 
+  /**
+   * @brief get lexically normalized path
+   * @param path path to be processed
+   * @return string containing the lexically normalized path
+  */
+  static std::string LexicallyNormal(const std::string& path);
+
   /**
    * @brief determine relative path in respect to base directory
    * @param path path to be processed

libs/rtefsutils/src/RteFsUtils.cpp

@@ -562,6 +562,15 @@ string RteFsUtils::ParentPath(const string& path) {
   return fs::path(path).parent_path().generic_string();
 }
 
+string RteFsUtils::LexicallyNormal(const string& path) {
+  string lexicallyNormal = fs::path(path).lexically_normal().generic_string();
+  if ((lexicallyNormal.length() > 1) && (lexicallyNormal.back() == '/')) {
+    // remove trailing separator for alignment with canonical behaviour
+    lexicallyNormal.pop_back();
+  }
+  return lexicallyNormal;
+}
+
 string RteFsUtils::RelativePath(const string& path, const string& base, bool withHeadingDot) {
   if (path.empty() || base.empty()) {
     return "";

libs/rtefsutils/test/src/RteFsUtilsTest.cpp

@@ -920,6 +920,19 @@ TEST_F(RteFsUtilsTest, ParentPath) {
   EXPECT_EQ(filePath, dirnameSubdir);
 }
 
+TEST_F(RteFsUtilsTest, LexicallyNormal) {
+  string dirPath;
+
+  dirPath = RteFsUtils::LexicallyNormal(dirnameDotDotSubdir);
+  EXPECT_EQ(dirPath, dirnameSubdir);
+
+  dirPath = RteFsUtils::LexicallyNormal(dirnameDotSubdir);
+  EXPECT_EQ(dirPath, dirnameSubdir);
+
+  dirPath = RteFsUtils::LexicallyNormal(dirnameSubdirWithTrailing);
+  EXPECT_EQ(dirPath, dirnameSubdir);
+}
+
 TEST_F(RteFsUtilsTest, RelativePath) {
   string relPath;
   string absSubdir = RteFsUtils::AbsolutePath(dirnameSubdir).generic_string();

tools/projmgr/src/ProjMgrYamlParser.cpp

@@ -237,7 +237,7 @@ void ProjMgrYamlParser::EnsurePortability(const string& file, const YAML::Mark&
       value.clear();
     } else {
       const string parentDir = RteFsUtils::ParentPath(file);
-      const string original = fs::path(parentDir).append(value).lexically_normal().generic_string();
+      const string original = RteFsUtils::LexicallyNormal(fs::path(parentDir).append(value).generic_string());
       if (RteFsUtils::Exists(original)) {
         error_code ec;
         string canonical = fs::canonical(original, ec).generic_string();