2355282d88
The code for each module is wrapped in a function so the module can be parameterized, and so its variables can be scoped to the function. However, the function names must be unique, otherwise when the modules are sourced, functions will overwrite functions with the same name in previously sourced modules.
56 lines
1.6 KiB
Bash
Executable File
56 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
mod_bat () {
|
|
# Customizable configuration constants
|
|
local -r DEFAULT_CNT=1
|
|
local -r DEFAULT_PRE_PLG=' '
|
|
local -r DEFAULT_PRE_UPLG=' '
|
|
local -r DEFAULT_PRE_UNK=' '
|
|
local -r DEFAULT_SUF=''
|
|
|
|
local -r cnt="${1:-${DEFAULT_CNT}}"
|
|
local -r pre_plg="${2-${DEFAULT_PRE_PLG}}"
|
|
local -r pre_uplg="${3-${DEFAULT_PRE_UPLG}}"
|
|
local -r pre_unk="${4-${DEFAULT_PRE_UNK}}"
|
|
local -r suf="${5-${DEFAULT_SUF}}"
|
|
|
|
local res cap_files cap_file cap stat_file stat
|
|
|
|
# Get up to the specified number of battery capacity files
|
|
readarray -d '' cap_files < \
|
|
<(find /sys/class/power_supply/BAT?/capacity -type f -print0 \
|
|
| head -z -n "${cnt}")
|
|
|
|
# Get the corresponding status and capacity for each battery
|
|
for cap_file in "${cap_files[@]}"; do
|
|
# Compute the name of the status file
|
|
printf -v stat_file '%s' "$(dirname "${cap_file}")/status";
|
|
# Get the current battery status
|
|
if [[ -r "${stat_file}" ]]; then
|
|
read -r stat < "${stat_file}"
|
|
case "${stat}" in
|
|
Charging|Full)
|
|
printf -v res '%b %b' "${res}" "${pre_plg}"
|
|
;;
|
|
Discharging)
|
|
printf -v res '%b %b' "${res}" "${pre_uplg}"
|
|
;;
|
|
*)
|
|
printf -v res '%b %b' "${res}" "${pre_unk}"
|
|
;;
|
|
esac
|
|
else
|
|
printf -v res '%b %b' "${res}" "${pre_unk}"
|
|
fi
|
|
|
|
# Get the current battery capacity
|
|
read -r cap < "${cap_file}"
|
|
printf -v res '%b%3d%%%b' "${res}" "${cap}" "${suf}"
|
|
done
|
|
|
|
# In res, info for each battery is separated by a space, including a
|
|
# leading space before the first battery info, so remove it
|
|
printf '%b' "${res:1}"
|
|
}
|
|
|