1 files changed, 69 insertions, 0 deletions
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..cc3b235
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,69 @@
+// Copyright (C) 2019 Robin Krahl <robin.krahl@ireas.org>
+// SPDX-License-Identifier: MIT
+
+use std::fmt;
+use std::io;
+use std::process;
+use std::str;
+
+#[derive(Debug)]
+pub enum Error {
+    DialogError(dialog::Error),
+    IoError(io::Error),
+    Error(String),
+    UrlParseError(url::ParseError),
+    Utf8Error(str::Utf8Error),
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match *self {
+            Error::DialogError(ref err) => write!(f, "Dialog error: {:?}", err),
+            Error::IoError(ref err) => write!(f, "IO error: {}", err),
+            Error::Error(ref string) => write!(f, "Error: {}", string),
+            Error::UrlParseError(ref err) => write!(f, "URL parse error: {}", err),
+            Error::Utf8Error(ref err) => write!(f, "UTF-8 error: {}", err),
+        }
+    }
+}
+
+impl From<&str> for Error {
+    fn from(string: &str) -> Error {
+        Error::Error(string.to_string())
+    }
+}
+
+impl From<dialog::Error> for Error {
+    fn from(error: dialog::Error) -> Error {
+        Error::DialogError(error)
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(error: io::Error) -> Error {
+        Error::IoError(error)
+    }
+}
+
+impl From<(&str, process::ExitStatus)> for Error {
+    fn from(data: (&str, process::ExitStatus)) -> Error {
+        let (command, status) = data;
+        let msg = match status.code() {
+            Some(code) => format!("{} failed with error code {}", command, code),
+            None => format!("{} was terminated by a signal", command),
+        };
+        Error::Error(msg)
+    }
+}
+
+impl From<url::ParseError> for Error {
+    fn from(error: url::ParseError) -> Error {
+        Error::UrlParseError(error)
+    }
+}
+
+impl From<str::Utf8Error> for Error {
+    fn from(error: str::Utf8Error) -> Error {
+        Error::Utf8Error(error)
+    }
+}