add pre-commit with clang, trailing spaces, and codespell

.github/workflows/githubci.yml

@@ -17,7 +17,12 @@ jobs:
     - uses: actions/setup-python@v4
       with:
         python-version: '3.x'
+
     - uses: actions/checkout@v3
+
+    - name: Run pre-commit
+      uses: pre-commit/action@v3.0.0
+
     - uses: actions/checkout@v3
       with:
          repository: adafruit/ci-arduino

README.md

@@ -6,7 +6,7 @@ Used internally for making testers, to reduce code replication!
 
 Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!
 
-Written by Limor Fried for Adafruit Industries.  
+Written by Limor Fried for Adafruit Industries.
 BSD license, check license.txt for more information
 All text above must be included in any redistribution
 

code-of-conduct.md

@@ -41,7 +41,7 @@ Examples of unacceptable behavior by participants include:
 
 The goal of the standards and moderation guidelines outlined here is to build
 and maintain a respectful community. We ask that you don’t just aim to be
-"technically unimpeachable", but rather try to be your best self. 
+"technically unimpeachable", but rather try to be your best self.
 
 We value many things beyond technical expertise, including collaboration and
 supporting others within our community. Providing a positive experience for

examples/Brain/program_esp32_uart/program_esp32_uart.ino

@@ -91,4 +91,3 @@ void setup1() {
 void loop1() {
   yield();
 }
-

examples/Brain/program_esp32_uart_uncompressed/program_esp32_uart_uncompressed.ino

@@ -126,4 +126,3 @@ void setup1() {
 void loop1() {
   yield();
 }
-

examples/Brain/program_rp2040_uf2/program_rp2040_uf2.ino

@@ -75,7 +75,7 @@ void setup() {
   // prepare SD Card
   prepare_sd();
 
-  // wait for USB filesytem is mounted. USB host bit-banging and task is
+  // wait for USB filesystem is mounted. USB host bit-banging and task is
   // processed on core1
   while (!is_usbfs_mounted) delay(10);
 

examples/I2C_Scan/I2C_Scan.ino

@@ -73,4 +73,4 @@ void loop() {
 #endif
 
   delay(3000); // wait 3 seconds
-}
+}

tools/esp_stub.py

@@ -37,7 +37,7 @@ def print_array(payload):
 def print_stub(mcu):
     data = base64.b64decode(stub[mcu]["data"])
     text = base64.b64decode(stub[mcu]["text"])
-    
+
     print("//------------- {} -------------//".format(mcu))
     print ("const uint8_t _stub_%s_data[%d] = {" % (mcu, len(data)))
     print_array(data)