[Keymap] Add pierrec83's gherkin keymap (#9465)

* [Keymap] Add pierrec83's gherkin keymap

Contribute my gherkin keymap upstream as it is semi-stable. It has grown
in symbiosis with my Kyria keymap which is already upstream.

Add a readme

* Remove generated keymap and instructions to generate it as it is done by qmk flash

4 files changed, 71 insertions, 0 deletions

diff --git a/keyboards/40percentclub/gherkin/keymaps/pierrec83/config.h b/keyboards/40percentclub/gherkin/keymaps/pierrec83/config.h
new file mode 100644
index 000000000..a635e944c
--- /dev/null
+++ b/keyboards/40percentclub/gherkin/keymaps/pierrec83/config.h
@@ -0,0 +1,31 @@
+#pragma once
+
+/* Make layout the right way:
+ *  - USB port on left side
+ *  - Switches facing the correct way
+ */
+#undef MATRIX_ROW_PINS
+#undef MATRIX_COL_PINS
+#define MATRIX_ROW_PINS { B6, B2, B3, B1, F7 }
+#define MATRIX_COL_PINS { D0, D4, C6, D7, E6, B4 }
+
+// Set the mouse settings to a comfortable speed/accuracy trade-off
+// Assume the screen refresh rate is 60 Htz or higher
+// The default is 50. This makes the mouse ~3 times faster and more accurate
+#define MOUSEKEY_INTERVAL 16
+// The default is 20. Since we made the mouse about 3 times faster with the previous setting,
+// give it more time to accelerate to max speed to retain precise control over short distances.
+#define MOUSEKEY_TIME_TO_MAX 40
+// The default is 300. Let's try and make this as low as possible while keeping the cursor responsive
+#define MOUSEKEY_DELAY 100
+// It makes sense to use the same delay for the mouseweel
+#define MOUSEKEY_WHEEL_DELAY 100
+// The default is 100
+#define MOUSEKEY_WHEEL_INTERVAL 50
+// The default is 40
+#define MOUSEKEY_WHEEL_TIME_TO_MAX 100
+
+#define TAPPING_TERM 200
+#define PERMISSIVE_HOLD
+#define IGNORE_MOD_TAP_INTERRUPT
+#define TAPPING_FORCE_HOLD
diff --git a/keyboards/40percentclub/gherkin/keymaps/pierrec83/keymap.json b/keyboards/40percentclub/gherkin/keymaps/pierrec83/keymap.json
new file mode 100644
index 000000000..073eb568f
--- /dev/null
+++ b/keyboards/40percentclub/gherkin/keymaps/pierrec83/keymap.json
@@ -0,0 +1 @@
+{"version":1,"notes":"My awesome keymap","documentation":"\"This file is a QMK Configurator export. You can import this at <https://config.qmk.fm>. It can also be used directly with QMK's source code.\n\nTo setup your QMK environment check out the tutorial: <https://docs.qmk.fm/#/newbs>\n\nYou can convert this file to a keymap.c using this command: `qmk json2c {keymap}`\n\nYou can compile this keymap using this command: `qmk compile {keymap}`\"\n","keyboard":"40percentclub/gherkin","keymap":"pierrec83","layout":"LAYOUT_ortho_3x10","layers":[["KC_Q","KC_D","KC_R","KC_W","KC_B","KC_J","KC_F","KC_U","KC_P","KC_BSPC","LSFT_T(KC_A)","LT(5,KC_S)","LT(1,KC_H)","LT(3,KC_T)","KC_G","KC_Y","LT(4,KC_N)","LT(2,KC_E)","LT(6,KC_O)","LSFT_T(KC_I)","KC_Z","KC_X","KC_M","KC_C","KC_V","LT(7,KC_SPC)","KC_L","LALT_T(KC_COMM)","LCTL_T(KC_DOT)","KC_K"],["KC_TRNS","ANY(LCTL(LSFT(KC_C)))","KC_PGUP","ANY(LCTL(LSFT(KC_V)))","KC_TRNS","KC_TRNS","KC_BTN1","KC_WH_U","KC_BTN2","KC_TRNS","KC_TRNS","KC_BTN2","KC_NO","KC_BTN1","KC_TRNS","KC_TRNS","KC_MS_L","KC_MS_D","KC_MS_U","KC_MS_R","KC_TRNS","KC_TRNS","KC_PGDN","KC_TRNS","KC_TRNS","KC_TRNS","KC_MPRV","KC_WH_D","KC_MNXT","TG(1)"],["KC_TRNS","KC_TRNS","KC_PGUP","KC_TRNS","KC_TRNS","BL_BRTG","BL_INC","KC_WH_U","KC_TRNS","KC_TRNS","KC_LEFT","KC_UP","KC_DOWN","KC_RGHT","KC_TRNS","BL_TOGG","KC_LGUI","KC_NO","LCTL(KC_LALT)","LCA(KC_LSFT)","KC_TRNS","KC_HOME","KC_PGDN","KC_END","KC_TRNS","BL_STEP","BL_DEC","KC_WH_D","KC_TRNS","KC_TRNS"],["KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_UNDS","KC_PIPE","KC_QUOT","KC_TRNS","KC_CIRC","KC_ASTR","KC_AMPR","KC_NO","KC_TRNS","KC_HASH","KC_TILD","KC_SLSH","KC_DQUO","KC_DLR","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_MINS","KC_BSLS","KC_GRV","KC_TRNS"],["KC_TRNS","KC_COLN","KC_LT","KC_GT","KC_SCLN","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_LCBR","KC_RCBR","KC_LPRN","KC_RPRN","KC_AT","KC_TRNS","KC_NO","KC_EQL","KC_PLUS","KC_PERC","KC_TRNS","KC_EXLM","KC_LBRC","KC_RBRC","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS"],["KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_F7","KC_F8","KC_F9","KC_F10","KC_LCTL","KC_NO","KC_LALT","LCTL(KC_LALT)","KC_TRNS","KC_TRNS","KC_F4","KC_F5","KC_F6","KC_F11","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_F1","KC_F2","KC_F3","KC_F12"],["KC_PSLS","KC_7","KC_8","KC_9","KC_PPLS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_0","KC_4","KC_5","KC_6","KC_PMNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_NO","KC_TRNS","KC_PAST","KC_1","KC_2","KC_3","KC_PEQL","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS"],["LT(8,KC_TRNS)","KC_ESC","KC_COLN","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_DEL","KC_TRNS","KC_PERC","KC_SLSH","KC_ENT","KC_EXLM","KC_TRNS","KC_LGUI","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TRNS","KC_TAB","KC_TRNS","KC_TRNS","RALT(KC_TRNS)","RCTL(KC_TRNS)","TG(1)"],["KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","EEP_RST","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","RESET","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO","KC_NO"]],"author":"Anonymous"}
\ No newline at end of file
diff --git a/keyboards/40percentclub/gherkin/keymaps/pierrec83/readme.md b/keyboards/40percentclub/gherkin/keymaps/pierrec83/readme.md
new file mode 100644
index 000000000..0ade64b34
--- /dev/null
+++ b/keyboards/40percentclub/gherkin/keymaps/pierrec83/readme.md
@@ -0,0 +1,38 @@
+@pierrec83's keymap for the gherkin
+===
+
+A usable keymap for the gherkin's 30 keys layout, somewhat in sync with my Kyria keymap.
+
+This keymap is more or less an adaptation of my Kyria keymap which sacrifices some convenience but retains most functionality.
+
+Features
+---
+* Mouse keys with constants tuned so the keyboard usable for me as my sole pointing device
+* Homerow layers activation
+* Minimal side-index motion thanks to workman base layer and similar principles in other layers
+* Two symbol layers, both activated with one homerow key and either another key on the same hand's homerow or a key from the other hand
+* Mousing around, including left and right clicking can be done either one-handed or fully on the homerow with both hands
+* Easy chaining of common command line or vim patterns, such as `~/`, `()`, `ESC : w ENTER` etc.
+* Common OS shortcuts like switching workspaces on gnome or MacOS easily accessible (for the shortcuts I use. This may not apply to others)
+
+Instructions to update the keymap
+---
+
+For now, I am still more comfortable updating the keymap through the qmk configurator as I don't trust myself to manually keep comments describing the keymap in sync with the code itself. This means that my keymap.c is generated and not really readable. For a readble view of my keymap, one must import keymap.json into [qmk configurator](https://config.qmk.fm) and use the web UI or print it.
+
+To update the keymap,
+* Load keymap.json into qmk configurator
+* Perform any edits
+* Export the keymap. This should save a json file in `~/Downloads/pierrec83.json` or equivalent for your OS
+* From the root of qmk_firmware, move the keymap to its destination:
+```
+mv ~/Downloads/pierrec83.json keyboards/40percentclub/gherkin/keymaps/pierrec83/keymap.json
+```
+* Flash the firmware (for instance, if left hand is plugged):
+```
+qmk flash -kb 40percentclub/gherkin -km pierrec83
+```
+
+Author
+---
+I am @pierrec83 on Twitter, @pierrechevalier83 on github. I chose the shorter nickname for my keymap.
diff --git a/keyboards/40percentclub/gherkin/keymaps/pierrec83/rules.mk b/keyboards/40percentclub/gherkin/keymaps/pierrec83/rules.mk
new file mode 100644
index 000000000..bd518d8f2
--- /dev/null
+++ b/keyboards/40percentclub/gherkin/keymaps/pierrec83/rules.mk
@@ -0,0 +1 @@
+BACKLIGHT_ENABLE = yes