port failure -> thiserror

src/error.rs

@@ -1,57 +1,15 @@
-use failure::{Backtrace, Context, Error, Fail};
-use std::fmt;
+use crate::{
+    full_text_parser::{config::ConfigError, error::FullTextParserError},
+    images::ImageDownloadError,
+};
+use thiserror::Error;
 
-#[derive(Debug)]
-pub struct ScraperError {
-    inner: Context<ScraperErrorKind>,
-}
-
-#[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
-pub enum ScraperErrorKind {
-    #[fail(display = "Unknown Error")]
-    Unknown,
-}
-
-impl Fail for ScraperError {
-    fn cause(&self) -> Option<&dyn Fail> {
-        self.inner.cause()
-    }
-
-    fn backtrace(&self) -> Option<&Backtrace> {
-        self.inner.backtrace()
-    }
-}
-
-impl fmt::Display for ScraperError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Display::fmt(&self.inner, f)
-    }
-}
-
-impl ScraperError {
-    pub fn kind(&self) -> ScraperErrorKind {
-        *self.inner.get_context()
-    }
-}
-
-impl From<ScraperErrorKind> for ScraperError {
-    fn from(kind: ScraperErrorKind) -> ScraperError {
-        ScraperError {
-            inner: Context::new(kind),
-        }
-    }
-}
-
-impl From<Context<ScraperErrorKind>> for ScraperError {
-    fn from(inner: Context<ScraperErrorKind>) -> ScraperError {
-        ScraperError { inner }
-    }
-}
-
-impl From<Error> for ScraperError {
-    fn from(_: Error) -> ScraperError {
-        ScraperError {
-            inner: Context::new(ScraperErrorKind::Unknown),
-        }
-    }
+#[derive(Error, Debug)]
+pub enum ScraperError {
+    #[error("")]
+    Config(#[from] ConfigError),
+    #[error("")]
+    Image(#[from] ImageDownloadError),
+    #[error("")]
+    Scrap(#[from] FullTextParserError),
 }