1 files changed, 46 insertions, 0 deletions
diff --git a/crates/common/tedge_config/src/models/file_path.rs b/crates/common/tedge_config/src/models/file_path.rs
new file mode 100644
index 00000000..29f8a415
--- /dev/null
+++ b/crates/common/tedge_config/src/models/file_path.rs
@@ -0,0 +1,46 @@
+use std::convert::TryInto;
+use std::path::{Path, PathBuf};
+
+/// Represents a path to a file or directory.
+///
+/// We need this newtype in order to implement `TryInto<String>`.
+/// `PathBuf` does not implement `TryInto<String>`.
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize, Eq, PartialEq)]
+#[serde(transparent)]
+pub struct FilePath(PathBuf);
+
+#[derive(thiserror::Error, Debug)]
+#[error("FilePath to String conversion failed: {0:?}")]
+pub struct FilePathToStringConversionFailure(std::ffi::OsString);
+
+impl<T> From<T> for FilePath
+where
+    PathBuf: From<T>,
+{
+    fn from(input: T) -> Self {
+        Self(PathBuf::from(input))
+    }
+}
+
+impl TryInto<String> for FilePath {
+    type Error = FilePathToStringConversionFailure;
+
+    fn try_into(self) -> Result<String, FilePathToStringConversionFailure> {
+        self.0
+            .into_os_string()
+            .into_string()
+            .map_err(FilePathToStringConversionFailure)
+    }
+}
+
+impl AsRef<Path> for FilePath {
+    fn as_ref(&self) -> &Path {
+        self.0.as_ref()
+    }
+}
+
+impl std::fmt::Display for FilePath {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.0.display())
+    }
+}