multiprocess bar

scripts/bar.sh

@@ -1,6 +1,9 @@
 #!/bin/bash
 
-cd $(dirname $0)
+FIFO="/tmp/bar.fifo"
+
+FORMAT_LEFT="%(music)s %(services)s %(diskspace)s"
+FORMAT_RIGHT="%(wifi)s %(battery)s %(clock)s "
 
 icon_color="#A0A57E"
 icon() { echo -n "%{F$icon_color}"; printf '%b' "\ue$1"; echo -n "%{F-}"; }
@@ -74,7 +77,7 @@ battery() {
         info="%{F$color_battery_low}$level%%{F-}"
     fi
 
-    echo -n "%{A:I "battery 1061":}$icon $info%{A}"
+    echo -n "%{A:I 'battery 1061':}$icon $info%{A}"
 }
 
 clock() {
@@ -98,9 +101,26 @@ run_handler() {
     done
 }
 
+run_worker() {
+    SLEEP=$1
+    TAG=$2
+    COMMAND=$3
+    ( while true; do
+        echo -n "$TAG "
+        $COMMAND
+        echo
+        sleep $SLEEP
+    done > $FIFO ) &
+}
 
-while true; do
-    echo "%{l} $(music) $(services) $(diskspace)%{r}$(updates) $(wifi) $(battery) $(clock) "
-    sleep 1
-done | lemonbar -g 1366x15 -f "Stlarch:size=6:style=regular" -f "Terminus:size=8" -B "#88000000" | run_handler
+cd $(dirname $0)
+
+[ -e "$FIFO" ] && rm -f $FIFO
+mkfifo $FIFO
+
+
+run_worker 1 clock clock
+run_worker 5 battery battery
+
+( while true; do cat $FIFO; done ) | python ./barformatter.py "$FORMAT_LEFT" "$FORMAT_RIGHT" # | lemonbar -g 1366x15 -f "Stlarch:size=6:style=regular" -f "Terminus:size=8" -B "#88000000" | run_handler
 

scripts/barformatter.py

@@ -0,0 +1,24 @@
+from sys import argv, exit
+
+class DefaultDict(dict):
+    def __init__(self,default):
+        super(DefaultDict, self).__init__()
+        self.default = default
+
+    def __getitem__(self, key):
+        return self.get(key, self.default)
+
+if len(argv) <= 2:
+    print("%s <format_left> <format_right>" % argv[0])
+    exit(1)
+
+format_left = argv[1]
+format_right = argv[2]
+cache = DefaultDict("")
+
+_format = lambda: '%{l}' + (format_left % cache) + '%{r}' + (format_right % cache)
+
+while True:
+    print(_format())
+    tag,content = input().rstrip('\n').split(' ',1)
+    cache[tag] = content