[feature] replace some fish/bash script with dash script for performance

dunst/config/launch.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 DIR=$(readlink -f $(dirname $0))
 

picom/config/launch.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 DIR=$(readlink -f $(dirname $0))
 

picom/config/toggle.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 DIR=$(readlink -f $(dirname $0))
 

suckless/config/autorandr/postswitch

@@ -1,24 +1,22 @@
-#!/bin/bash
+#!/bin/sh
 
 # set system dpi to the minimal dpi among all connected monitors
 
-MIN_DPI=99999999
 
-# loop through all connected monitors line by line
-while IFS= read -r LINE; do
-    WIDTH_PX=$(echo $LINE | grep -oP '\d+(?=x\d+)')
-    [ -z "$WIDTH_PX" ] && continue
-    WIDTH_MM=$(echo $LINE | grep -oP '\d+(?=mm x)')
-    # calculate dpi of the monitor
-    DPI=$(bc <<< "$WIDTH_PX*25.4/$WIDTH_MM")
-    # update min dpi
-    if [ "$DPI" -lt "$MIN_DPI" ]; then
-        MIN_DPI=$DPI
-    fi
-done <<< "$(xrandr | grep ' connected')"
-
-# update dpi
-echo setting dpi to $MIN_DPI
-echo Xft.dpi: $MIN_DPI | xrdb -merge
+xrandr | awk '
+BEGIN {
+    MIN_DPI=99999999
+}
+$2 == "connected" {
+    if (match($0, / ([0-9]+)x([0-9]+)\+([0-9]+)\+([0-9]+) /, m1) &&
+        match($0, / ([0-9]+)mm x ([0-9]+)mm$/, m2)) {
+        DPI=m1[1]*25.4/m2[1]
+        if (DPI < MIN_DPI) MIN_DPI=DPI
+    }
+}
+END {
+    printf "Xft.dpi: %i", MIN_DPI+0.5
+}
+' | xrdb -merge
 
 nitrogen --restore

suckless/config/dwm/autostart

@@ -1,4 +1,4 @@
-#!/usr/bin/env fish
+#!/bin/sh
 
 # start compositor daemon
 $HOME/.config/picom/launch.sh
@@ -7,7 +7,7 @@ $HOME/.config/picom/launch.sh
 $HOME/.config/dunst/launch.sh
 
 # start dwmbar daemon
-$HOME/.config/dwm/dwmbar
+$HOME/.config/dwm/statusbar
 
 # disable screen saver / turn off monitor if inactived for 300 secs
 xset s off

suckless/config/dwm/statusbar

@@ -0,0 +1,127 @@
+#!/bin/sh
+
+# symbola
+#export ICON_RCD=🎥
+#export ICON_MSC=♬
+#export ICON_MTD=🔉
+#export ICON_VOL=🔊
+#export ICON_NIC=🖧
+#export ICON_WFI=📡
+#export ICON_MEM=📈
+#export ICON_TMP=🌡
+#export ICON_PLG=🔌
+#export ICON_BAT=🔋
+#export ICON_DAT=⏲
+
+# nerdfont
+export ICON_RCD='辶'
+export ICON_MSC=''
+export ICON_MTD='ﱝ '
+export ICON_VOL=' '
+export ICON_NIC=' '
+export ICON_WFI=' '
+export ICON_MEM=' '
+export ICON_TMP=''
+export ICON_PLG=' '
+export ICON_BA0=' '
+export ICON_BA1=' '
+export ICON_BA2=' '
+export ICON_BA3=' '
+export ICON_BA4=' '
+export ICON_DAT=' '
+
+MPD=$(which mpc && echo yes)
+
+statusbar() {
+
+    echo -n " "
+
+    # recording
+    [ -f /tmp/recording.pid ] && echo -n "$ICON_RCD  "
+
+    # mpd
+    [ -n "$MPD" ] && mpc | awk '
+        NR == 1 {
+            SONG = $0
+        }
+        NR == 2 {
+            PLAYING = $1
+        }
+        END {
+            if (PLAYING == "[playing]")
+                printf "%s %s  ", ENVIRON["ICON_MSC"], SONG
+        }
+    '
+
+    # volume
+    amixer get Master | awk 'END {
+        ICO = $NF == "[off]" ? ENVIRON["ICON_MTD"] : ENVIRON["ICON_VOL"]
+        VOL = $(NF-1)
+        printf "%s %s  ", ICO,substr(VOL, 2, length(VOL)-2)
+    }'
+
+    # network
+    for NIC in /sys/class/net/e*; do
+        grep -q 'up' $NIC/operstate && awk '{
+            printf "%s %s  ",ENVIRON["ICON_NIC"],($0 >= 1000 ? $0 / 1000 "G" : $0 "M")
+        }' $NIC/speed
+    done
+
+    # wifi
+    awk 'NR > 2 {
+        printf "%s %i%%  ", ENVIRON["ICON_WFI"], $3*100/70
+    }' /proc/net/wireless
+
+    # cpu temperature
+    awk '{
+        printf "%s %i°C  ", ENVIRON["ICON_TMP"], $0/1000
+    }' /sys/class/thermal/thermal_zone0/temp
+
+    # memory usage
+    free | awk 'NR == 2 {
+        printf "%s %i%%  ", ENVIRON["ICON_MEM"], $3/$2*100
+    }'
+
+    # battery
+    if [ -f /sys/class/power_supply/BAT0/capacity ]; then
+        grep -q '1' /sys/class/power_supply/AC/online && export PLUGGED=yes
+        awk '{
+            if (ENVIRON["PLUGGED"] == "yes")
+                ICON=ENVIRON["ICON_PLG"]
+            else if ($0 > 90)
+                ICON=ENVIRON["ICON_BA4"]
+            else if ($0 > 75)
+                ICON=ENVIRON["ICON_BA3"]
+            else if ($0 > 50)
+                ICON=ENVIRON["ICON_BA2"]
+            else if ($0 > 25)
+                ICON=ENVIRON["ICON_BA1"]
+            else
+                ICON=ENVIRON["ICON_BA0"]
+            printf "%s %s%%  ", ICON, $0
+        }' /sys/class/power_supply/BAT0/capacity
+    fi
+
+    # datetime
+    echo -n "$ICON_DAT $(date +'%m-%d %H:%M %a') "
+}
+
+
+start() {
+    while :; do
+        ! pgrep slock 1>/dev/null && xsetroot -name "$(statusbar)"
+        sleep 1
+    done
+}
+
+restart() {
+    pkill -f 'dwmbar loop'
+    $0 loop &
+}
+
+if [ "$1" = "loop" ]; then
+    start
+else
+    restart
+fi
+