Factor usage of common error type more

archapp/src/err.rs

@@ -0,0 +1,49 @@
+use std::fmt;
+
+pub struct Error(err::Error);
+
+impl Error {
+    pub fn with_msg<S: Into<String>>(s: S) -> Self {
+        Self(err::Error::with_msg(s))
+    }
+
+    pub fn with_msg_no_trace<S: Into<String>>(s: S) -> Self {
+        Self(err::Error::with_msg_no_trace(s))
+    }
+}
+
+impl fmt::Debug for Error {
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        self.0.fmt(fmt)
+    }
+}
+
+impl From<Error> for err::Error {
+    fn from(x: Error) -> Self {
+        x.0
+    }
+}
+
+impl From<std::string::FromUtf8Error> for Error {
+    fn from(k: std::string::FromUtf8Error) -> Self {
+        Self::with_msg(k.to_string())
+    }
+}
+
+impl From<std::io::Error> for Error {
+    fn from(k: std::io::Error) -> Self {
+        Self::with_msg(k.to_string())
+    }
+}
+
+impl<T> From<async_channel::SendError<T>> for Error {
+    fn from(k: async_channel::SendError<T>) -> Self {
+        Self::with_msg(k.to_string())
+    }
+}
+
+impl From<serde_json::Error> for Error {
+    fn from(k: serde_json::Error) -> Self {
+        Self::with_msg(k.to_string())
+    }
+}