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Add i3 battery popup and improve symlinks for dotbot
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Jan Wirth
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Jan 23, 2019
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,232 @@ | ||
| #! /bin/bash | ||
|
|
||
| ################################################################################ | ||
| # A script that shows a battery warning on i3wm # | ||
| # # | ||
| # It supports multiple batteries # | ||
| # (like my thinkpad T450s has) # | ||
| # # | ||
| # When tcl/tk (wish) is installed, it shows a nice popup # | ||
| # Which you can configure to show on all workspaces # | ||
| # by adding the following to your i3 config: # | ||
| # "for_window [title="Battery Warning"] sticky enable" # | ||
| # # | ||
| # By default, the script will show two messages: # | ||
| # One at 10% and one at 5% battery # | ||
| # # | ||
| # The script takes the following options: # | ||
| # -L : The percentage at which the first popup shows (default: 10) # | ||
| # # | ||
| # -l : The percentage at which the second popup shows # | ||
| # Default: half of the percentage given by -L # | ||
| # # | ||
| # -m : The message to show to the User # | ||
| # # | ||
| # -t : The time interval the script waits before checking the battery again. # | ||
| # Give this a value in seconds: 5s, 10s, or in minutes: 5m # | ||
| # Default: 5m # | ||
| # # | ||
| # -n : Use notify-send for message. # | ||
| # # | ||
| # -N : Don't use Tcl/Tk dialog. Use i3-nagbar. # | ||
| # # | ||
| # By R-J Ekker, 2016 # | ||
| ################################################################################ | ||
|
|
||
| error () { | ||
| echo $1 >&2 | ||
| echo "Exiting" >&2 | ||
| exit $2 | ||
| } | ||
|
|
||
| while getopts 'L:l:m:t:s:F:i:nND' opt; do | ||
| case $opt in | ||
| L) | ||
| [[ $OPTARG =~ ^[0-9]+$ ]] || error "${opt}: ${OPTARG} is not a number" 2 | ||
| UPPER_LIMIT="${OPTARG}" | ||
| ;; | ||
| l) | ||
| [[ $OPTARG =~ ^[0-9]+$ ]] || error "${opt}: ${OPTARG} is not a number" 2 | ||
| LOWER_LIMIT="${OPTARG}" | ||
| ;; | ||
| m) | ||
| MESSAGE="${OPTARG}" | ||
| ;; | ||
| n) | ||
| USE_NOTIFY_SEND="y" | ||
| ;; | ||
| i) | ||
| NOTIFY_ICON="${OPTARG}" | ||
| ;; | ||
| N) | ||
| DONT_USE_WISH="-n" | ||
| ;; | ||
| t) | ||
| [[ $OPTARG =~ ^[0-9]+[ms]?$ ]] || error "${opt}: ${OPTARG} is not a valid period" 2 | ||
| SLEEP_TIME="${OPTARG}" | ||
| ;; | ||
| D) | ||
| # Print some extra info | ||
| DEBUG="y" | ||
| ;; | ||
| F) | ||
| # Redirect debugging info to logfile | ||
| # if -D not specified this will log nothing | ||
| LOGFILE="${OPTARG}" | ||
| ;; | ||
| :) | ||
| error "Option -$OPTARG requires an argument." 2 | ||
| ;; | ||
| \?) | ||
| exit 2 | ||
| ;; | ||
| esac | ||
| done | ||
|
|
||
| # This function returns an awk script | ||
| # Which prints the battery percentage | ||
| # It's an ugly way to include a nicely indented awk script here | ||
| get_awk_source() { | ||
| cat <<EOF | ||
| BEGIN { | ||
| FS="="; | ||
| } | ||
| \$1 ~ /ENERGY_FULL$/ { | ||
| f += \$2; | ||
| } | ||
| \$1 ~ /ENERGY_NOW\$/ { | ||
| n += \$2; | ||
| } | ||
| \$1 ~ /CHARGE_FULL$/ { | ||
| f += \$2; | ||
| } | ||
| \$1 ~ /CHARGE_NOW\$/ { | ||
| n += \$2; | ||
| } | ||
| END { | ||
| print int(100*n/f); | ||
| } | ||
| EOF | ||
| } | ||
|
|
||
| is_battery_discharging() { | ||
| cat $BATTERIES | grep STATUS=Discharging && return 0 | ||
| return 1 | ||
| } >/dev/null | ||
|
|
||
| get_battery_perc() { | ||
| cat $BATTERIES | awk -f <(get_awk_source) | ||
| } | ||
|
|
||
| show_popup() { | ||
| WISH_SCRIPT="wm state . withdrawn; tk_messageBox -icon warning -title \"Battery Warning\" -message \"${1}\"; exit" | ||
| echo "$WISH_SCRIPT" | wish | ||
| } | ||
|
|
||
| show_nagbar(){ | ||
| i3-msg "exec i3-nagbar -m \"${1}\"" | ||
| } | ||
|
|
||
| show_notify(){ | ||
| GNOME_ICON="/usr/share/icons/gnome/scalable/status/battery-low-symbolic.svg" | ||
| XFCE_ICON="/usr/share/icons/elementary-xfce/status/48/battery-low.png" | ||
| # try to find nice notify icon | ||
| if [[ -z $NOTIFY_ICON ]]; then | ||
| if [[ -f $GNOME_ICON ]]; then | ||
| NOTIFY_ICON="${GNOME_ICON}" | ||
| elif [[ -f $XFCE_ICON ]]; then | ||
| NOTIFY_ICON="${XFCE_ICON}" | ||
| fi | ||
| fi | ||
| [[ -n $NOTIFY_ICON ]] && NOTIFY_OPT="-i ${NOTIFY_ICON}" | ||
| notify-send -u critical ${NOTIFY_OPT} "${1}" | ||
| } | ||
|
|
||
| show_message(){ | ||
| if [[ -n $USE_NOTIFY_SEND ]] && which notify-send; then | ||
| show_notify "$1" | ||
| elif [[ -z $DONT_USE_WISH ]] && which wish; then | ||
| show_popup "$1" | ||
| else | ||
| show_nagbar "$1" | ||
| fi | ||
| } >&2 | ||
|
|
||
| debug(){ | ||
| [[ -n $DEBUG ]] && echo "$1" | ||
| } | ||
|
|
||
| main (){ | ||
| # Setting defaults | ||
| UPPER_LIMIT="${UPPER_LIMIT:-10}" | ||
| UPPER_HALF=$(( $UPPER_LIMIT / 2 )) | ||
| LOWER_LIMIT=${LOWER_LIMIT:-$UPPER_HALF} | ||
| MESSAGE="${MESSAGE:-Warning: Battery is getting low}" | ||
| SLEEP_TIME="${SLEEP_TIME:-5m}" | ||
|
|
||
| BATTERIES=/sys/class/power_supply/BAT*/uevent | ||
|
|
||
| debug "Upper ${UPPER_LIMIT}; Lower ${LOWER_LIMIT}; sleep ${SLEEP_TIME}" | ||
| debug "Current: $(get_battery_perc)%" | ||
|
|
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| LIMIT="${UPPER_LIMIT}" | ||
| # This will be set to "y" after first click | ||
| # So we know when to stop nagging | ||
| POPUP_CLICKED="" | ||
|
|
||
| while true; do | ||
| debug "Checking.. " | ||
|
|
||
| PERC=$(get_battery_perc) | ||
| debug "got ${PERC}%" | ||
|
|
||
| if is_battery_discharging; then | ||
| debug "Battery is discharging" | ||
|
|
||
| if [[ $PERC -lt $LIMIT ]]; then | ||
| debug "showing warning" | ||
| show_message "${MESSAGE}" | ||
|
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||
| if [[ -z $POPUP_CLICKED ]]; then | ||
| # first click; set limit lower | ||
| POPUP_CLICKED="y" | ||
| LIMIT=${LOWER_LIMIT} | ||
| else | ||
| # We clicked twice; No more popups | ||
| LIMIT=0 | ||
| fi | ||
| fi | ||
| else | ||
| # restart messages, reset limits | ||
| POPUP_CLICKED="" | ||
| if [[ $PERC -gt $UPPER_LIMIT ]]; then | ||
| LIMIT=${UPPER_LIMIT} | ||
| else | ||
| LIMIT=${LOWER_LIMIT} | ||
| fi | ||
| fi | ||
| debug "sleeping ${SLEEP_TIME}; current limit ${LIMIT}%; ${POPUP_CLICKED:+Popup was clicked}" | ||
| sleep "${SLEEP_TIME}" | ||
| done | ||
| } | ||
|
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|
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| LOCK_FILE="${HOME}/.i3-battery-popup.lock" | ||
|
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| release_lock() { | ||
| # This shouldn't be necessary but it seems | ||
| # the lock doesn't release on i3 exit | ||
| flock --unlock 200 | ||
| } | ||
|
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||
|
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||
| ( | ||
| if [[ -n $LOGFILE ]]; then | ||
| exec >>"$LOGFILE" 2>&1 | ||
| fi | ||
|
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| flock -xn 200 || { show_message "$(basename ${0}): cannot acquire lock ${LOCK_FILE}"; exit 3; } | ||
| trap release_lock EXIT | ||
|
|
||
| main | ||
| ) 200>"${LOCK_FILE}" |
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