pass clippy

src/device_var.rs

@@ -9,11 +9,9 @@ pub fn read_env_var() {
     fs::read_to_string(path).expect("Something went wrong reading the file : device.env");
 
     if let Ok(lines) = read_lines(path) {
-        for line in lines {
-            if let Ok(var) = line {
-                let new_var: Vec<&str> = var.split('=').collect();
-                env::set_var(new_var[0], new_var[1]);
-            }
+        for var in lines.map_while(Result::ok) {
+            let new_var: Vec<&str> = var.split('=').collect();
+            env::set_var(new_var[0], new_var[1]);
         }
     }
 

src/mqtt_pub.rs

@@ -41,7 +41,7 @@ pub fn get_topic_name(types: &str) -> String {
     let capteur = env::var("CAPTEUR").unwrap().to_string();
     topic.push_str(&capteur);
     topic.push('/');
-    topic.push_str(&types);
+    topic.push_str(types);
 
     topic
 }

src/system_values.rs

@@ -12,7 +12,7 @@ pub fn get_temperature() -> f32 {
 
         let temperature_string = &String::from_utf8_lossy(&temperature_command.stdout)[..5];
         temperature = temperature_string.parse::<f32>().unwrap();
-        temperature = temperature / 1000.0;
+        temperature /= 1000.0;
     } else {
         let temperature_command = Command::new("sudo")
             .arg("/opt/vc/bin/vcgencmd")
@@ -39,9 +39,8 @@ pub fn get_storage() -> i8 {
     let vec_storage: Vec<&str> = storage_string.split_whitespace().collect();
     let mut value = vec_storage[vec_storage.len() - 2].to_string();
     value.pop();
-    let storage = value.parse::<i8>().unwrap();
 
-    storage
+    value.parse::<i8>().unwrap()
 }
 
 pub fn get_mem() -> i8 {
@@ -54,9 +53,8 @@ pub fn get_mem() -> i8 {
     let vec_mem: Vec<&str> = mem_string.split_whitespace().collect();
     let total = vec_mem[7].parse::<f32>().unwrap();
     let mem_use = vec_mem[8].parse::<f32>().unwrap();
-    let result = (mem_use / total * 100.0) as i8;
 
-    result
+    (mem_use / total * 100.0) as i8
 }
 
 pub fn get_battery() -> i8 {
@@ -70,7 +68,7 @@ pub fn get_battery() -> i8 {
             .unwrap_or_else(|e| panic!("failed to execute process: {}", e));
 
         let battery_string = &String::from_utf8_lossy(&battery_command.stdout);
-        battery = (&battery_string[..battery_string.len() - 1])
+        battery = (battery_string[..battery_string.len() - 1])
             .parse::<i8>()
             .unwrap();
     }