src: lib: Change logger to be optional using it's own method

src/lib.rs

@@ -15,7 +15,7 @@ use linux_embedded_hal::spidev::{self, SpidevOptions};
 use linux_embedded_hal::sysfs_gpio::Direction;
 use linux_embedded_hal::I2cdev;
 use linux_embedded_hal::{Delay, Pin, Spidev};
-use log::{info, warn};
+use log::{error, info, warn};
 use nb::block;
 use pwm_pca9685::{Address as pwm_Address, Pca9685};
 use sk6812_rpi::led::Led as StripLed;
@@ -275,8 +275,6 @@ impl NavigatorBuilder {
     }
 
     pub fn build(self) -> Navigator {
-        env_logger::init();
-
         let dev = I2cdev::new("/dev/i2c-4").unwrap();
         let address = pwm_Address::default();
         let pwm = Pca9685::new(dev, address).unwrap();
@@ -384,6 +382,21 @@ impl Navigator {
         self.led.set_led_all(false);
     }
 
+    /// Initialize the log service. Which can display feedback for some processes.
+    /// The function will return a true value if initialized successfully.
+    pub fn init_logger(&self) -> bool {
+        match env_logger::try_init() {
+            Ok(_) => {
+                info!("Logger initialized successfully");
+                true
+            }
+            Err(e) => {
+                error!("Failed to initialize logger: {}", e);
+                false
+            }
+        }
+    }
+
     pub fn self_test(&mut self) -> bool {
         //Check if the sensors are attached by it's IDs,
         //run self-test if they have.