Damian D'SouzaandGitHub
253668025d
* refactor(battery-threshold): change setup to run script in terminal via sudo * chore(battery-threshold): update dependencies * docs(battery-threshold): update threshold.txt location description * chore(battery-threshold): bump version
100 lines
2.5 KiB
Bash
Executable File
100 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# ------------------------------
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# Battery Threshold Udev Setup
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# ------------------------------
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# This script sets up udev rules to allow a non-root user to write to
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# /sys/class/power_supply/BAT0/charge_control_end_threshold.
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# It creates a group 'battery_ctl' and adds the target user to this group.
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#
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# Usage:
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# $ ./setup_rules.sh [username] [--non-interactive|-y]
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# ------------------------------
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set -e
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SCRIPT_PATH="$(readlink -f "$0" 2>/dev/null || echo "$0")"
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TARGET_USER=""
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SKIP_PROMPT=false
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for arg in "$@"; do
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case "$arg" in
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-y | --non-interactive)
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SKIP_PROMPT=true
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;;
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-*)
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;;
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*)
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if [ -z "$TARGET_USER" ]; then
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TARGET_USER="$arg"
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fi
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;;
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esac
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done
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TARGET_USER="${TARGET_USER:-${SUDO_USER:-$USER}}"
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if [ "$SKIP_PROMPT" = false ]; then
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echo "===================================================="
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echo " Battery Threshold Udev Setup"
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echo "===================================================="
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echo "Script location: $SCRIPT_PATH"
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echo "Target user: $TARGET_USER"
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echo ""
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echo "Please examine the script location and contents above before proceeding."
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echo ""
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read -rp "Do you want to proceed with setup? (y/N): " CONFIRM
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case "$CONFIRM" in
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[yY][eE][sS] | [yY])
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;;
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*)
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echo "Setup cancelled by user."
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read -rp "Press Enter to exit..."
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exit 1
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;;
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esac
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fi
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# Escalate privileges via sudo only after user confirmation
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if [ "$EUID" -ne 0 ]; then
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echo ""
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echo "Escalating privileges via sudo..."
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exec sudo bash "$SCRIPT_PATH" "$TARGET_USER" --non-interactive
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fi
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if [ -z "$TARGET_USER" ]; then
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echo "Error: No target user specified." >&2
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read -rp "Press Enter to exit..."
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exit 1
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fi
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if ! getent group battery_ctl >/dev/null; then
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echo "Creating battery_ctl group..."
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groupadd battery_ctl
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fi
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echo "Adding $TARGET_USER to battery_ctl group..."
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usermod -aG battery_ctl "$TARGET_USER"
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echo "Writing udev rule to /etc/udev/rules.d/99-battery-threshold.rules..."
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cat <<'EOF' >/etc/udev/rules.d/99-battery-threshold.rules
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# Battery Threshold Control - udev rule
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# Grants write access to charge_control_end_threshold for users in the
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# 'battery_ctl' group.
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SUBSYSTEM=="power_supply", KERNEL=="BAT*", \
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RUN+="/bin/chgrp battery_ctl /sys$devpath/charge_control_end_threshold", \
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RUN+="/bin/chmod g+w /sys$devpath/charge_control_end_threshold"
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EOF
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echo "Reloading rules..."
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udevadm control --reload-rules && udevadm trigger
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echo ""
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echo "You may need a reboot for the plugin's write access to take effect."
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echo "Done!"
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echo ""
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read -rp "Press Enter to exit..."
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