[Keyboard] PCB Ruler updates (#6584)

* Move default keymap's rules to keyboard level

* Concatenate the two sets of rules

This sets CONSOLE_ENABLE to no, which was being set at the keymap level.

* Wrap the USB Device Description in quotes

Some preventative maintenance. The firmware for the_ruler can't be compiled without this change if `CONSOLE_ENABLE = yes` because this string has a comma, which gets picked up as two arguments by the Command code, instead of one as it should be.

* Linting

- remove firmware size impacts
- remove trailing white space
- visual alignment of rules

* Use QMK's pre-loaded default rules for atmega32u4

* Update readme

- markdown formatting
- update Hardware Availability link (Maple Computing's site has disappeared)
- update Docs links

* Update header files to use #pragma once

5 files changed, 12 insertions, 74 deletions

diff --git a/keyboards/the_ruler/config.h b/keyboards/the_ruler/config.h
index ecae3a4f21..0ec3f69d1b 100644
--- a/keyboards/the_ruler/config.h
+++ b/keyboards/the_ruler/config.h
@@ -15,8 +15,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef CONFIG_H
-#define CONFIG_H
+#pragma once
 
 #include "config_common.h"
 
@@ -26,7 +25,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DEVICE_VER      0x0001
 #define MANUFACTURER    Maple Computing
 #define PRODUCT         The PCB Ruler
-#define DESCRIPTION     A custom keyboard PCB ruler, can also function as a macro pad
+#define DESCRIPTION     "A custom keyboard PCB ruler, can also function as a macro pad"
 
 /* key matrix size */
 #define MATRIX_ROWS 1
@@ -155,5 +154,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLIGHT_HUE_STEP 10
 #define RGBLIGHT_SAT_STEP 17
 #define RGBLIGHT_VAL_STEP 17
-
-#endif
diff --git a/keyboards/the_ruler/keymaps/default/rules.mk b/keyboards/the_ruler/keymaps/default/rules.mk
index 2791cc1054..e69de29bb2 100644
--- a/keyboards/the_ruler/keymaps/default/rules.mk
+++ b/keyboards/the_ruler/keymaps/default/rules.mk
@@ -1,18 +0,0 @@
-# Build Options
-#   change to "no" to disable the options, or define them in the Makefile in 
-#   the appropriate keymap folder that will get included automatically
-#
-BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
-MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
-EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
-CONSOLE_ENABLE = no         # Console for debug(+400)
-COMMAND_ENABLE = yes        # Commands for debug and configuration
-NKRO_ENABLE = no           # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
-MIDI_ENABLE = no            # MIDI controls
-AUDIO_ENABLE = no           # Audio output on port C6
-UNICODE_ENABLE = no         # Unicode
-BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
-RGBLIGHT_ENABLE = yes        # Enable WS2812 RGB underlight. 
-SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
-
diff --git a/keyboards/the_ruler/readme.md b/keyboards/the_ruler/readme.md
index 63a6ffeee3..13ea61c9a7 100644
--- a/keyboards/the_ruler/readme.md
+++ b/keyboards/the_ruler/readme.md
@@ -1,14 +1,13 @@
-The Ruler PCB
-=======
+# The Ruler PCB
 
-A custom keyboard PCB ruler, that can also function as a macro pad
+A custom keyboard PCB ruler, that can also function as a macro pad.
 
 Keyboard Maintainer: Maple Computing  
 Hardware Supported: PCB Ruler V1 by That-Canadian and Bishop Keyboards  
-Hardware Availability: https://www.maple-computing.com/products/pcb-ruler-v1-1
+Hardware Availability: [Bishop Keyboards](https://bishopkeyboards.com/product/pcb-ruler-gloss-black-silver/)
 
 Make example for this keyboard (after setting up your build environment):
 
     make the_ruler:default
 
-See [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) then the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information.
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/the_ruler/rules.mk b/keyboards/the_ruler/rules.mk
index 7eca12ad4f..33611c44bb 100644
--- a/keyboards/the_ruler/rules.mk
+++ b/keyboards/the_ruler/rules.mk
@@ -1,43 +1,6 @@
 # MCU name
 MCU = atmega32u4
 
-# Processor frequency.
-#     This will define a symbol, F_CPU, in all source code files equal to the
-#     processor frequency in Hz. You can then use this symbol in your source code to
-#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
-#     automatically to create a 32-bit value in your source code.
-#
-#     This will be an integer division of F_USB below, as it is sourced by
-#     F_USB after it has run through any CPU prescalers. Note that this value
-#     does not *change* the processor frequency - it should merely be updated to
-#     reflect the processor speed set externally so that the code can use accurate
-#     software delays.
-F_CPU = 16000000
-
-
-#
-# LUFA specific
-#
-# Target architecture (see library "Board Types" documentation).
-ARCH = AVR8
-
-# Input clock frequency.
-#     This will define a symbol, F_USB, in all source code files equal to the
-#     input clock frequency (before any prescaling is performed) in Hz. This value may
-#     differ from F_CPU if prescaling is used on the latter, and is required as the
-#     raw input clock is fed directly to the PLL sections of the AVR for high speed
-#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
-#     at the end, this will be done automatically to create a 32-bit value in your
-#     source code.
-#
-#     If no clock division is performed on the input clock inside the AVR (via the
-#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_USB = $(F_CPU)
-
-# Interrupt driven control endpoint task(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
-
 # Boot Section Size in *bytes*
 #   Teensy halfKay   512
 #   Teensy++ halfKay 1024
@@ -50,10 +13,10 @@ OPT_DEFS += -DBOOTLOADER_SIZE=4096
 # Build Options
 #   change yes to no to disable
 #
-BOOTMAGIC_ENABLE = no      # Virtual DIP switch configuration(+1000)
-MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
-EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
-CONSOLE_ENABLE = yes        # Console for debug(+400)
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
 COMMAND_ENABLE = yes        # Commands for debug and configuration
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
@@ -64,4 +27,4 @@ MIDI_ENABLE = no            # MIDI controls
 UNICODE_ENABLE = no         # Unicode
 BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
 AUDIO_ENABLE = no           # Audio output on port C6
-RGBLIGHT_ENABLE = yes        # Enable WS2812 RGB underlight. 
+RGBLIGHT_ENABLE = yes       # Enable WS2812 RGB underlight.
diff --git a/keyboards/the_ruler/the_ruler.h b/keyboards/the_ruler/the_ruler.h
index 45a327b0dc..171d21a072 100644
--- a/keyboards/the_ruler/the_ruler.h
+++ b/keyboards/the_ruler/the_ruler.h
@@ -1,5 +1,4 @@
-#ifndef THERULER_H
-#define THERULER_H
+#pragma once
 
 #include "quantum.h"
 
@@ -7,5 +6,3 @@
     K00, K01, K02, K03, K04, K05 ) { \
     { K00, K01, K02, K03, K04, K05 }  \
 }
-
-#endif