fixes (thanks @sevz17!) and new bad modules system

fixes (thanks @sevz17!) and new bad modules system

dsystao/README

@@ -0,0 +1,10 @@
+copy modules/ into /usr/local/lib/dsystao
+
+OR just cd here and run `MODULES=modules ./dsystao`
+
+this is a huge hodgepodge of terribly applied sh knowledge
+counselling/contributions greatly appreciated
+
+what am I doing with my life
+
+have fun

dsystao/dsystao

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+trap "kill -- -$$" INT EXIT
+
+CONFIG=${CONFIG:-~/.config/dsystao/dsystao.conf}
+if ! [ -f "$CONFIG" ]; then
+	# make the default one
+	echo '${clock} | ${interfaces} | ${audio} | ${battery}' > "$CONFIG"
+fi
+
+# TODO: find a better home for the module things
+MODULES=${MODULES:-/usr/local/lib/dsystao}
+[ -d "$MODULES" ] || echo "bad modules directory: '$MODULES'" >&2
+
+(
+	for m in $(sed -e 's/[^$]*${\([^}]*\)}[^$]*/\1 /g' $CONFIG); do
+		$MODULES/$m | while IFS= read -r l; do echo "$m=$l"; done & #sed -e "s/^/$m=/" &
+	done
+) | while IFS= read -r l; do
+	export -- "$l"
+	echo "$l" >&2
+	. "$CONFIG"
+done #| dtao -fn "monospace:pixelsize=16" -h 32 -z -z -fg "#f0f0e0" -bg "#101010"

dsystao/dsystao.conf

@@ -0,0 +1 @@
+echo "${clock} | ${interfaces} | ${audio} | ${battery}"

dsystao/modules/audio

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+refresh=${refresh:-10}
+
+loop() {
+	set -f
+	set -- $(amixer sget Master | tail -n 1 | awk 'BEGIN {FS="["; RS="]"; ORS=" "} {print $2}')
+	set +f
+	printf '^ca(1,amixer -q set Master '
+	if [ "$3" = "on" ]; then
+		printf 'mute && %s)<(' "$_update"
+	else
+		printf 'unmute && %s)<X' "$_update"
+	fi
+	printf '%3s^ca()^ca(1,amixer -q set Master 5- && %s)-^ca()^ca(1,amixer -q set Master 5+ && %s)+^ca()\n' "${1%%\%}" "$_update" "$_update"
+}
+
+while true; do
+	sleep "$refresh" & _update="kill -s USR1 $!"
+	echo "$(loop)"
+	wait
+done

dsystao/modules/battery

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+refresh="${refresh:-60}"
+
+while true; do
+	batt="$(awk '{sum += $1; n++;} END{printf "%d", sum/n;}' /sys/class/power_supply/BAT*/capacity || echo '??')"
+	if [ "$batt" -lt 100 ]; then
+		case $(cat /sys/class/power_supply/BAT*/status) in
+			Full) ;;
+			Charging)
+				batt="+${batt}";;
+			Discharging)
+				batt="-${batt}";;
+			*)
+				batt="?${batt}";;
+		esac
+	fi
+	printf "%3s%%\n" "${batt}"
+	sleep "$refresh"
+done

dsystao/modules/clock

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+refresh="${refresh:-60}"
+
+while true; do
+	printf "%16s\n" "$(date '+%H:%M %a %d %b')"
+	sleep "$((60 - $(date +%S)))"
+done

dsystao/modules/interfaces

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+refresh="${refresh:-4}"
+
+hr() {
+	awk '{
+		s="bkMGTPEZY";
+		while ($1>=1000 && length(s)>1)
+			{$1/=1024; s=substr(s,2)}
+		print int($1+0.5) substr(s,1,1)
+	}'
+}
+
+rxb=0
+txb=0
+t=0
+
+while true; do
+	_rxb=$rxb
+	_txb=$txb
+	rxb=$(($(paste -d+ /sys/class/net/*/statistics/rx_bytes)))
+	txb=$(($(paste -d+ /sys/class/net/*/statistics/tx_bytes)))
+	_t=$t
+	t="$(cut -d' ' -f1 /proc/uptime)"
+	_rxb="$(echo "($rxb-$_rxb)/($t-$_t)" | bc | hr)"
+	_txb="$(echo "($txb-$_txb)/($t-$_t)" | bc | hr)"
+	# shellcheck disable=3057
+	printf '%4s/%4s\n' "$_rxb" "$_txb"
+	sleep "$refresh"
+done

dsystao/modules/testing

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+while true; do
+	sleep 1 & sleepid=$!
+	echo "^ca(1,kill -s USR1 $sleepid)$sleepid^ca()"
+	wait $sleepid
+done

dtao.c

@@ -153,15 +153,17 @@ parse_clickable_area(char *str, struct clickable *c, uint32_t xpos, uint32_t ypo
 {
 	c->x1 = xpos;
 	c->y1 = 0;
-
 	c->btn = 0;
 	while (*str != ',' && *str != '\0')
 		if (isdigit(*str)) c->btn = c->btn*10 + (*str++ - '0');
 
-	if (*str++ == '\0') BARF("bad clickarea cmd");
-	c->cmd = malloc(strlen(str) + 1);
+	if (*str++ == '\0')
+		BARF("bad clickarea cmd");
 
-	if (!c->cmd) BARF("bad malloc clickarea cmd");
+	free(c->cmd);
+	c->cmd = strdup(str);
+	if (!c->cmd)
+		EBARF("malloc: ");
 	strcpy(c->cmd, str);
 	return 0;
 }
@@ -453,10 +455,10 @@ spawn(const char *arg) {
 	if(fork() == 0) {
 		setsid();
 		execl(shell, shell, "-c", arg, (char *)NULL);
-		fprintf(stderr, "dtao: execl '%s -c %s'", shell, arg);
-		perror(" failed");
+		EBARF("dtao: execl '%s -c %s' failed: ", shell, arg);
 	}
-	wait(0);
+	if (signal(SIGCHLD, SIG_IGN) == SIG_ERR)
+		EBARF("failed to ignore SIGCHLD");
 }
 
 static void
@@ -747,11 +749,9 @@ main(int argc, char **argv)
 
 	struct wl_registry *registry = wl_display_get_registry(display);
 
-	struct input_state *istate = calloc(1, sizeof(struct input_state));
-	if (!istate)
-		BARF("Failed to create inputstate");
+	struct input_state istate = {0};
 
-	wl_registry_add_listener(registry, &registry_listener, istate);
+	wl_registry_add_listener(registry, &registry_listener, &istate);
 	wl_display_roundtrip(display);
 
 	if (!compositor || !shm || !layer_shell)
@@ -797,7 +797,6 @@ main(int argc, char **argv)
 	wl_compositor_destroy(compositor);
 	wl_registry_destroy(registry);
 	wl_display_disconnect(display);
-	free(istate);
 
 	return 0;
 }