refactor: update error messages to be more uniform

src/app/layout_manager.rs

@@ -933,7 +933,7 @@ impl std::str::FromStr for BottomWidgetType {
             "empty" => Ok(BottomWidgetType::Empty),
             "battery" | "batt" => Ok(BottomWidgetType::Battery),
             _ => Err(BottomError::ConfigError(format!(
-                "Invalid widget type: {}",
+                "invalid widget type: {}",
                 s
             ))),
         }

src/canvas/canvas_colours.rs

@@ -166,7 +166,8 @@ impl CanvasColours {
     pub fn set_battery_colours(&mut self, colours: &[String]) -> error::Result<()> {
         if colours.is_empty() {
             Err(error::BottomError::ConfigError(
-                "Battery colour list must have at least one colour!".to_string(),
+                "invalid colour config: battery colour list must have at least one colour!"
+                    .to_string(),
             ))
         } else {
             let generated_colours: Result<Vec<_>, _> = colours

src/options.rs

@@ -41,7 +41,7 @@ pub struct ConfigFlags {
     pub default_widget_type: Option<String>,
     pub default_widget_count: Option<u64>,
     pub use_old_network_legend: Option<bool>,
-    pub hide_table_gap : Option<bool>,
+    pub hide_table_gap: Option<bool>,
     //disabled_cpu_cores: Option<Vec<u64>>, // TODO: [FEATURE] Enable disabling cores in config/flags
 }
 
@@ -219,7 +219,11 @@ pub fn build_app(
         hide_time: get_hide_time(matches, config),
         autohide_time,
         use_old_network_legend: get_use_old_network_legend(matches, config),
-        table_gap: if get_hide_table_gap(matches, config){0}else{1},
+        table_gap: if get_hide_table_gap(matches, config) {
+            0
+        } else {
+            1
+        },
     };
 
     let used_widgets = UsedWidgets {
@@ -286,7 +290,7 @@ pub fn get_widget_layout(
             ret_bottom_layout
         } else {
             return Err(error::BottomError::ConfigError(
-                "Invalid layout - please have at least one widget.".to_string(),
+                "invalid layout config: please have at least one widget.".to_string(),
             ));
         }
     } else {
@@ -342,7 +346,7 @@ fn get_temperature(
                 "kelvin" | "k" => Ok(data_harvester::temperature::TemperatureType::Kelvin),
                 "celsius" | "c" => Ok(data_harvester::temperature::TemperatureType::Celsius),
                 _ => Err(BottomError::ConfigError(
-                    "Invalid temperature type.  Please have the value be of the form \
+                    "invalid temperature type: please have the value be of the form \
 						 <kelvin|k|celsius|c|fahrenheit|f>"
                         .to_string(),
                 )),
@@ -633,4 +637,3 @@ pub fn get_hide_table_gap(matches: &clap::ArgMatches<'static>, config: &Config)
     }
     false
 }
-

src/utils/error.rs

@@ -28,24 +28,24 @@ impl std::fmt::Display for BottomError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match *self {
             BottomError::InvalidIO(ref message) => {
-                write!(f, "Encountered an IO exception: {}", message)
+                write!(f, "encountered an IO exception: {}", message)
             }
             BottomError::InvalidArg(ref message) => write!(f, "Invalid argument: {}", message),
             BottomError::InvalidHeim(ref message) => write!(
                 f,
-                "Invalid error during data collection due to Heim: {}",
+                "invalid error during data collection due to heim: {}",
                 message
             ),
             BottomError::CrosstermError(ref message) => {
-                write!(f, "Invalid error due to Crossterm: {}", message)
+                write!(f, "invalid error due to Crossterm: {}", message)
             }
             BottomError::GenericError(ref message) => write!(f, "{}", message),
             BottomError::FernError(ref message) => write!(f, "Invalid fern error: {}", message),
             BottomError::ConfigError(ref message) => {
-                write!(f, "Invalid config file error: {}", message)
+                write!(f, "invalid config file error: {}", message)
             }
             BottomError::ConversionError(ref message) => {
-                write!(f, "Unable to convert: {}", message)
+                write!(f, "unable to convert: {}", message)
             }
         }
     }