Add initial files

.visudo

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+Cmnd_Alias      BATTERYOFF = /usr/local/bin/smc -k CH0B -w 02, /usr/local/bin/smc -k CH0C -w 02, /usr/local/bin/smc -k CH0B -r, /usr/local/bin/smc -k CH0C -r
+Cmnd_Alias      BATTERYON = /usr/local/bin/smc -k CH0B -w 00, /usr/local/bin/smc -k CH0C -w 00
+Cmnd_Alias      DISCHARGEOFF = /usr/local/bin/smc -k CH0I -w 00, /usr/local/bin/smc -k CH0I -r
+Cmnd_Alias      DISCHARGEON = /usr/local/bin/smc -k CH0I -w 01
+
+ALL ALL = NOPASSWD: BATTERYOFF
+ALL ALL = NOPASSWD: BATTERYON
+ALL ALL = NOPASSWD: DISCHARGEOFF
+ALL ALL = NOPASSWD: DISCHARGEON

Makefile

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+DESTDIR = /usr/local/bin
+SUDOERSDIR = /private/etc/sudoers.d
+INSTALL_PATH_CBATTERY = $(DESTDIR)/cbattery
+INSTALL_PATH_VISUDO = $(SUDOERSDIR)/cbattery
+
+all: install
+
+install: $(INSTALL_PATH_CBATTERY) $(INSTALL_PATH_VISUDO)
+
+$(INSTALL_PATH_VISUDO): .visudo
+	@echo "Installing visudo file to $(SUDOERSDIR)"
+	@if ! test -d "$(SUDOERSDIR)"; then \
+		mkdir -p "$(SUDOERSDIR)"; \
+	fi
+	@cp $< $(SUDOERSDIR)/cbattery
+	@chmod 440 $(SUDOERSDIR)/cbattery
+
+$(INSTALL_PATH_CBATTERY): cbattery
+	@echo "Installing cbattery to $(DESTDIR)"
+	@install -m 755 $< $(DESTDIR)
+
+uninstall:
+	@echo "Removing cbattery from $(DESTDIR)"
+	@cbattery uninstall || (echo "Uninstalling cbattery failed"; exit 1)
+	@rm -f $(INSTALL_PATH_CBATTERY) $(INSTALL_PATH_SMC)
+
+help:
+	@echo "Available targets:"
+	@echo "  make install   - Install cbattery to $(DESTDIR)"
+	@echo "  make uninstall - Remove cbattery from $(DESTDIR)"
+	@echo "  make help      - Show this help message"
+
+.PHONY: all install uninstall help

README.md

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+# cbattery
+
+cbattery is a script for managing battery-related settings on Apple Silicon systems.
+
+## Installation
+
+You can install `cbattery` using Homebrew:
+
+```bash
+brew tap santilococo/cmtap
+brew install santilococo/cbattery
+```
+
+This will also install the necessary `smc` dependency.
+
+## Usage
+
+Once installed, you can use `cbattery` to manage battery-related settings on your M1 system. Here are some common commands:
+
+- **Toggle charging**: `cbattery charging [on|off]`
+- **Toggle adapter connection**: `cbattery adapter [on|off]`
+- **Get status information**: `cbattery status`
+
+For more information on available commands, you can use the `help` command:
+
+```bash
+cbattery help
+```
+
+## Uninstallation
+
+To uninstall `cbattery` from your system:
+
+```bash
+brew uninstall cbattery
+```
+
+## Contributing
+
+If you encounter any issues with `cbattery` or would like to contribute to its development, please feel free to open an issue or submit a pull request on the [GitHub repository](https://git.slc.ar/slococo/cbattery). We welcome any feedback or contributions!
+
+## License
+
+This project is licensed under the GPL-2.0 License - see the [LICENSE](LICENSE.md) file for details.

cbattery

@@ -0,0 +1,113 @@
+#!/usr/bin/env bash
+
+set -e
+
+function usage() {
+	cat << EOF
+usage: ${0##*/} [command]
+	charging [on|off]	- Toggle charging
+	adapter [on|off]	- Toggle adapter connection
+	status			- Get status information
+	uninstall		- Revert to default settings
+	help			- Display this help message
+EOF
+}
+
+function enable_discharging() {
+	echo "Enabling battery discharging"
+	sudo smc -k CH0I -w 01
+}
+
+function disable_discharging() {
+	echo "Disabling battery discharging"
+	sudo smc -k CH0I -w 00
+}
+
+function enable_charging() {
+	echo "Enabling battery charging"
+	sudo smc -k CH0B -w 00
+	sudo smc -k CH0C -w 00
+	disable_discharging
+}
+
+function disable_charging() {
+	echo "Disabling battery charging"
+	sudo smc -k CH0B -w 02
+	sudo smc -k CH0C -w 02
+}
+
+function get_smc_charging_hex() {
+	smc -k CH0B -r | awk '{print $4}' | sed 's:\)::'
+}
+
+function get_smc_charging_status() {
+	hex_status=$(get_smc_charging_hex)
+	if [[ "$hex_status" == "00" ]]; then
+		echo "enabled"
+	else
+		echo "disabled"
+	fi
+}
+
+function get_smc_discharging_status() {
+	hex_status=$(smc -k CH0I -r | awk '{print $4}' | sed 's:\)::')
+	if [[ "$hex_status" == "0" ]]; then
+		echo "not discharging"
+	else
+		echo "discharging"
+	fi
+}
+
+function get_battery_percentage() {
+	battery_percentage=$(pmset -g batt | tail -n1 | awk '{print $3}' | sed 's:%\;::')
+	echo "$battery_percentage"
+}
+
+function get_remaining_time() {
+	time_remaining=$(pmset -g batt | tail -n1 | awk '{print $5}')
+	echo "$time_remaining"
+}
+
+action=$1
+setting=$2
+
+if [ -z "$action" ] || [[ "$action" == "help" ]]; then
+	usage
+	exit 0
+fi
+
+if [[ "$action" == "uninstall" ]]; then
+	enable_charging
+	disable_discharging
+	exit 0
+fi
+
+if [[ "$action" == "charging" ]]; then
+	echo "Setting $action to $setting"
+	if [[ "$setting" == "on" ]]; then
+		enable_charging
+	elif [[ "$setting" == "off" ]]; then
+		disable_charging
+	fi
+	exit 0
+fi
+
+if [[ "$action" == "adapter" ]]; then
+	echo "Setting $action to $setting"
+	if [[ "$setting" == "on" ]]; then
+		enable_discharging
+	elif [[ "$setting" == "off" ]]; then
+		disable_discharging
+	fi
+	exit 0
+fi
+
+if [[ "$action" == "status" ]]; then
+	if [[ "$setting" == "charging" ]]; then
+		exit "$(get_smc_charging_hex)"
+	else
+		echo "Battery at $(get_battery_percentage)% ($(get_remaining_time) remaining), smc charging $(get_smc_charging_status)"
+	fi
+	exit 0
+fi
+