Move errors in own module

src/error.rs

@@ -0,0 +1,46 @@
+use actix_web::{HttpResponse, ResponseError};
+
+#[derive(Debug)]
+pub(crate) enum Error {
+    Git(git2::Error),
+    Io(std::io::Error),
+    Badge(String),
+    ParseColor,
+}
+
+impl std::fmt::Display for Error {
+    fn fmt(&self, fmt: &mut std::fmt::Formatter) -> std::fmt::Result {
+        match self {
+            Error::Git(e) => write!(fmt, "Git({})", e),
+            Error::Io(e) => write!(fmt, "Io({})", e),
+            Error::Badge(s) => write!(fmt, "Badge({})", s),
+            Error::ParseColor => write!(fmt, "Parse error"),
+        }
+    }
+}
+
+impl ResponseError for Error {
+    fn error_response(&self) -> HttpResponse {
+        HttpResponse::InternalServerError().finish()
+    }
+}
+
+impl std::error::Error for Error {}
+
+impl From<String> for Error {
+    fn from(s: String) -> Self {
+        Error::Badge(s)
+    }
+}
+
+impl From<git2::Error> for Error {
+    fn from(err: git2::Error) -> Self {
+        Error::Git(err)
+    }
+}
+
+impl From<std::io::Error> for Error {
+    fn from(err: std::io::Error) -> Self {
+        Error::Io(err)
+    }
+}