Lint trailing whitespace (#3230)

.github/ISSUE_TEMPLATE/config.yml

@@ -9,4 +9,3 @@ contact_links:
   - name: Frequently Asked Question
     url: https://esphome.io/guides/faq.html
     about: Please view the FAQ for common questions and what to include in a bug report.
-    

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,4 +1,4 @@
-# What does this implement/fix? 
+# What does this implement/fix?
 
 Quick description and explanation of changes
 
@@ -35,6 +35,6 @@ Quick description and explanation of changes
 ## Checklist:
   - [ ] The code change is tested and works locally.
   - [ ] Tests have been added to verify that the new code works (under `tests/` folder).
-  
+
 If user exposed functionality or configuration variables are added/changed:
   - [ ] Documentation added/updated in [esphome-docs](https://github.com/esphome/esphome-docs).

CONTRIBUTING.md

@@ -5,7 +5,7 @@ For a detailed guide, please see https://esphome.io/guides/contributing.html#con
 Things to note when contributing:
 
  - Please test your changes :)
- - If a new feature is added or an existing user-facing feature is changed, you should also 
+ - If a new feature is added or an existing user-facing feature is changed, you should also
    update the [docs](https://github.com/esphome/esphome-docs). See [contributing to esphome-docs](https://esphome.io/guides/contributing.html#contributing-to-esphomedocs)
    for more information.
  - Please also update the tests in the `tests/` folder. You can do so by just adding a line in one of the YAML files

esphome/components/fujitsu_general/fujitsu_general.h

@@ -17,29 +17,29 @@ const uint8_t FUJITSU_GENERAL_TEMP_MAX = 30;  // Celsius
  *                                                                                               turn
  *                                                                                               on  temp mode     fan swing
  *                                                                                               *   |  | | |      | | *
- * 
+ *
  * temperatures                                                                                  1   1248 124      124 1
  * auto auto 18        00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000100 00000000 00000000 00000000  00000000 00000000 00000100 11110001
  * auto auto 19        00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10001100 00000000 00000000 00000000  00000000 00000000 00000100 11111110
  * auto auto 30        00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000111 00000000 00000000 00000000  00000000 00000000 00000100 11110011
- * 
+ *
  * on flag:
  * on at 16            00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000000 00100000 00000000 00000000  00000000 00000000 00000100 11010101
  * down to 16          00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  00000000 00100000 00000000 00000000  00000000 00000000 00000100 00110101
- * 
+ *
  * mode options:
  * auto auto 30        00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000111 00000000 00000000 00000000  00000000 00000000 00000100 11110011
  * cool auto 30        00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000111 10000000 00000000 00000000  00000000 00000000 00000100 01110011
  * dry auto 30         00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000111 01000000 00000000 00000000  00000000 00000000 00000100 10110011
  * fan (auto) (30)     00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000111 11000000 00000000 00000000  00000000 00000000 00000100 00110011
  * heat auto 30        00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000111 00100000 00000000 00000000  00000000 00000000 00000100 11010011
- * 
+ *
  * fan options:
  * heat 30 high        00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  10000111 00100000 10000000 00000000  00000000 00000000 00000100 01010011
  * heat 30 med         00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  00000111 00100000 01000000 00000000  00000000 00000000 00000100 01010011
  * heat 30 low         00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  00000111 00100000 11000000 00000000  00000000 00000000 00000100 10010011
  * heat 30 quiet       00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  00000111 00100000 00100000 00000000  00000000 00000000 00000100 00010011
- * 
+ *
  * swing options:
  * heat 30 swing vert  00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  00000111 00100000 00101000 00000000  00000000 00000000 00000100 00011101
  * heat 30 noswing     00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  00000111 00100000 00100000 00000000  00000000 00000000 00000100 00010011

esphome/components/ili9341/ili9341_init.h

@@ -25,10 +25,10 @@ static const uint8_t PROGMEM INITCMD_M5STACK[] = {
   0xF2, 1, 0x00,                         // 3Gamma Function Disable
   ILI9341_GAMMASET , 1, 0x01,             // Gamma curve selected
   ILI9341_GMCTRP1 , 15, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, // Set Gamma
-                        0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03, 
+                        0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03,
                         0x0E, 0x09, 0x00,
   ILI9341_GMCTRN1 , 15, 0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, // Set Gamma
-                        0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C, 
+                        0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C,
                         0x31, 0x36, 0x0F,
   ILI9341_SLPOUT  , 0x80,                // Exit Sleep
   ILI9341_DISPON  , 0x80,                // Display on
@@ -55,10 +55,10 @@ static const uint8_t PROGMEM INITCMD_TFT[] = {
   0xF2, 1, 0x00,                         // 3Gamma Function Disable
   ILI9341_GAMMASET , 1, 0x01,             // Gamma curve selected
   ILI9341_GMCTRP1 , 15, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, // Set Gamma
-                        0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03, 
+                        0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03,
                         0x0E, 0x09, 0x00,
   ILI9341_GMCTRN1 , 15, 0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, // Set Gamma
-                        0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C, 
+                        0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C,
                         0x31, 0x36, 0x0F,
   ILI9341_SLPOUT  , 0x80,                // Exit Sleep
   ILI9341_DISPON  , 0x80,                // Display on

script/ci-custom.py

@@ -591,6 +591,11 @@ def lint_inclusive_language(fname, match):
     )
 
 
+@lint_re_check(r"[\t\r\f\v ]+$")
+def lint_trailing_whitespace(fname, match):
+    return "Trailing whitespace detected"
+
+
 @lint_content_find_check(
     "ESP_LOG",
     include=["*.h", "*.tcc"],

tests/component_tests/button/test_button.yaml

@@ -18,4 +18,3 @@ button:
     name: wol_test_2
     id: wol_2
     internal: false
-