thrust into 2022

bin/data

@@ -2,11 +2,6 @@
 
 set -e
 
-# depends on https://git.sr.ht/~trinity/utilities (particularly fdivide(1),
-# gt(1), and stris(1))
-# there are issues with the POSIX shell implementations included in this script
-# and particularly with stris
-
 # on Linux only:
 # these files (separated by newlines) will have the current CPU temperature
 # multiplied by $CPU_TEMP_SCALE. this script divides the file contents by scale
@@ -16,7 +11,7 @@ CPU_TEMP_FILES="/sys/devices/platform/coretemp.0/hwmon/hwmon4/temp2_input
 CPU_TEMP_SCALE=1000
 
 # format for the date (by default in this script, ISO 8601)
-alias date="date '+%Y-%m-%dT%T'"
+DATE="date '+%Y-%m-%dT%T'"
 
 DELIMITER=" || "
 
@@ -24,11 +19,6 @@ DELIMITER=" || "
 # not an integer)
 INTERVAL=1
 
-# enable if you have issues with missing `stris` etc. will save negligible time
-# with shells that don't spawn new processes for test(1)
-# fdivide_posix() may not be fully working yet, so it's not enabled by default
-#POSIXLY_CORRECT=1
-
 # this URL will have in plain text the public IP address from which it was
 # accessed
 #PUBLIC_IP_FETCH_URL="http://ifconfig.io/"
@@ -37,26 +27,6 @@ INTERVAL=1
 PUBLIC_IP_FETCH_URL="https://icanhazip.com"
 PUBLIC_IP6_FETCH_URL="$PUBLIC_IP_FETCH_URL"
 
-get_battery_status() {
-	if [ "$(uname)" = "Linux" ]; then
-		# this is a dirty hack.
-		# acpi | awk '{print $4}' will print the battery percentage,
-		# and s/,$// strips the trailing comma.
-		# acpi -a will just print the power adapter status.
-		printf "%b" "$(acpi | awk '{print $4}' | sed 's/,$//') ($(acpi -a))"
-		return
-	elif [ "$(uname)" = "NetBSD" ]; then
-		printf "%b%%" "$(envstat -s acpibat0:charge \
-			| sed 1,2d \
-			| cut -d ':' -f 2 \
-			| awk '{print $1}' \
-			| cut -d '.' -f 1)"
-		return
-	else
-		printf "get_battery_status: unsupported OS"
-	fi
-}
-
 get_cpu_temp() {
 	if [ "$(uname)" = "Linux" ]; then
 		RETVAL=""
@@ -114,14 +84,13 @@ get_public_ip() {
 	return
 }
 
-# slow, so fetch it in advance
 PUBLIC_IP="$(get_public_ip)"
 
 printbar() {
 	printf "%b" "$(get_current_desktop)"
-	printf "%b" "$(date)"
+	printf "%b" $("$DATE")
 	printf "%b" "$DELIMITER"
-	printf "%b" "BAT: $(get_battery_status)"
+	printf "%b" "BAT: $(battery)"
 	printf "%b" "$DELIMITER"
 	printf "%b" "CPU: $(get_cpu_temp)"
 	printf "%b" "$DELIMITER"
@@ -132,72 +101,13 @@ printbar() {
 	return
 }
 
-###############################################################################
-#    the following is for error prevention and doesn't need to be changed     #
-###############################################################################
-
-# POSIX shell version of fdivide
-fdivide_posix() {
-	[ -n "$2" ] && [ -n "$1" ] && [ -z "$3" ] \
-		|| return 1
-	printf "%b\n" "$(($1/$2))"
-	return
-}
-
-# [ -gt ] with better syntax
-gt_posix() {
-	while [ -n "$2" ]; do
-		[ "$1" -gt "$2" ] \
-			|| return 1
-		shift 1
-	done
-	return 0
-}
-
-# limited POSIX shell version of stris
-# BROKEN REGEX. MUSTFIX.
-stris_posix() {
-	[ -n "$2" ] || return 1
-	case "$1" in
-	(int)
-		# https://stackoverflow.com/questions/2210349/test-whether-string-is-a-valid-integer
-		printf "$2" | grep '^-?[0-9]+$' >/dev/null \
-			&& return 0 \
-			|| return 1
-		;;
-	(uint)
-		printf "$2" | grep '^[0-9]+$' >/dev/null \
-			&& return 0 \
-			|| return 1
-		;;
-	(*)
-		return 1
-		;;
-	esac
-	return
-}
-
-# check to make sure we have non-standard utilities
-
-[ -n "$POSIXLY_CORRECT" ] || ! which fdivide >/dev/null 2>&1 \
-	&& alias fdivide="fdivide_posix" \
-	|| true
-
-[ -n "$POSIXLY_CORRECT" ] || ! which gt >/dev/null 2>&1 \
-	&& alias gt="gt_posix" \
-	|| true
-
-[ -n "$POSIXLY_CORRECT" ] || ! which stris >/dev/null 2>&1 \
-	&& alias stris="stris_posix" \
-	|| true
-
 # check to make sure customizeable vars are in proper format
 
-[ -n "$INTERVAL" ] && stris int "$INTERVAL" \
+[ -n "$INTERVAL" ] && str isdigit "$INTERVAL" \
 	|| INTERVAL=1
 
-[ -n "$CPU_TEMP_SCALE" ] && stris int "$CPU_TEMP_SCALE" \
+[ -n "$CPU_TEMP_SCALE" ] && str isdigit "$CPU_TEMP_SCALE" \
-		&& gt "$CPU_TEMP_SCALE" 0 \
+		&& [ "$CPU_TEMP_SCALE" -gt 0 ] \
 	|| CPU_TEMP_SCALE=1
 
 [ -n "$CPU_TEMP_FILES" ] \
@@ -208,4 +118,8 @@ stris_posix() {
 while true; do
 	printbar
 	sleep "$INTERVAL"
+	if streq $(date +'%S') 00; then
+		# every minute
+		PUBLIC_IP="$(get_public_ip)"
+	fi
 done