Moved configuration errors to errors.rs

src/config/config.rs

@@ -26,6 +26,8 @@ use elefren::Data;
 use serde_derive::Deserialize;
 use serde_derive::Serialize;
 
+use crate::config::errors::ConfigError;
+
 /// The last seen favourite
 #[derive(Serialize, Deserialize, Debug)]
 struct Favourite {
@@ -78,35 +80,12 @@ impl Config {
     }
 
     /// Save the current configuration file.
-    // TODO Result for save result?
-    pub fn save(&self) {
-        let content = toml::to_string(&self.0).unwrap();
-        let filename = Config::filename().unwrap();
+    pub fn save(&self) -> Result<(), ConfigError> {
+        let content = toml::to_string(&self.0)?;
+        let filename = Config::filename()?;
         log::debug!("Saving configuration to file \"{:?}\"", filename);
-        let mut fp = File::create(filename).unwrap();
-        fp.write_all(content.as_bytes()).unwrap();
-    }
-}
-
-/// Errors from the configuration
-#[derive(Debug)]
-pub enum ConfigError {
-    /// The system can't figure out the path for the configuration file
-    CantFigureConfigPath,
-    /// The configuration file has an error and can't be parsed
-    ConfigFileIsBroken,
-}
-
-impl From<toml::de::Error> for ConfigError {
-    fn from(e: toml::de::Error) -> Self {
-        log::debug!("Toml error: {:?}", e);
-        ConfigError::ConfigFileIsBroken
-    }
-}
-
-impl From<std::io::Error> for ConfigError {
-    fn from(e: std::io::Error) -> Self {
-        log::debug!("I/O error: {:?}", e);
-        ConfigError::ConfigFileIsBroken
+        let mut fp = File::create(filename)?;
+        fp.write_all(content.as_bytes())?;
+        Ok(())
     }
 }

src/config/errors.rs

@@ -0,0 +1,49 @@
+/*
+   DOWNFAV - Download Favourites
+   Copyright (C) 2020-2021  Julio Biason
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+/// Errors from the configuration
+#[derive(Debug)]
+pub enum ConfigError {
+    /// The system can't figure out the path for the configuration file
+    CantFigureConfigPath,
+    /// The configuration file has an error and can't be parsed
+    ConfigFileIsBroken,
+    /// There was something broken with the data and we couldn't save it properly
+    InvalidConfiguration,
+}
+
+impl From<toml::de::Error> for ConfigError {
+    fn from(e: toml::de::Error) -> Self {
+        log::debug!("Toml error: {:?}", e);
+        ConfigError::ConfigFileIsBroken
+    }
+}
+
+impl From<std::io::Error> for ConfigError {
+    fn from(e: std::io::Error) -> Self {
+        log::debug!("I/O error: {:?}", e);
+        ConfigError::ConfigFileIsBroken
+    }
+}
+
+impl From<toml::ser::Error> for ConfigError {
+    fn from(e: toml::ser::Error) -> Self {
+        log::debug!("TOML error: {:?}", e);
+        ConfigError::InvalidConfiguration
+    }
+}

src/config/mod.rs

@@ -25,6 +25,7 @@ use serde_derive::Deserialize;
 use serde_derive::Serialize;
 
 pub mod config;
+pub mod errors;
 
 #[derive(Serialize, Deserialize, Debug)]
 pub struct JoplinConfig {