1 files changed, 48 insertions, 0 deletions
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..0e8d99f
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,48 @@
+use std::io::Error as IoError;
+use std::io::ErrorKind;
+
+#[derive(Debug)]
+pub enum EntryReadError {
+    NotFound,
+    PermissionDenied,
+}
+impl From<IoError> for EntryReadError {
+    fn from(io_error: IoError) -> Self {
+        match io_error.kind() {
+            ErrorKind::NotFound => Self::NotFound,
+            // An intermediate path component was a plain file, not a directory
+            ErrorKind::NotADirectory => Self::NotFound,
+            // A cyclic symbolic link chain was included in the provided path
+            ErrorKind::FilesystemLoop => Self::NotFound,
+            ErrorKind::PermissionDenied => Self::PermissionDenied,
+            err => panic!("Unexpected IoError encountered: {:?}", err),
+        }
+    }
+}
+
+#[derive(Debug)]
+pub enum EntryWriteError {
+    NotFound,
+    PermissionDenied,
+}
+impl From<EntryReadError> for EntryWriteError {
+    fn from(error: EntryReadError) -> Self {
+        match error {
+            EntryReadError::NotFound => EntryWriteError::NotFound,
+            EntryReadError::PermissionDenied => EntryWriteError::PermissionDenied,
+        }
+    }
+}
+impl From<IoError> for EntryWriteError {
+    fn from(io_error: IoError) -> Self {
+        match io_error.kind() {
+            ErrorKind::NotFound => Self::NotFound,
+            // An intermediate path component was a plain file, not a directory
+            ErrorKind::NotADirectory => Self::NotFound,
+            // A cyclic symbolic link chain was included in the provided path
+            ErrorKind::FilesystemLoop => Self::NotFound,
+            ErrorKind::PermissionDenied => Self::PermissionDenied,
+            err => panic!("Unexpected IoError encountered: {:?}", err),
+        }
+    }
+}