custom-hypr - add scripts cava

.local/share/bin/waybar_cava.sh

@@ -0,0 +1,118 @@
+#!/bin/env bash
+#----- Optimized bars animation without much CPU usage increase --------
+#----- Optimized bars animation without much CPU usage increase pt2 --------
+
+scrDir=$(dirname "$(realpath "$0")")
+# shellcheck source=/dev/null
+. "${scrDir}/globalcontrol.sh"
+usage() {
+    cat <<HELP
+Usage: $(basename "$0") [OPTIONS]
+
+Options:
+  --bar <waybar_cava_bar>  Specify the characters to use for the bar animation (default: ▁▂▃▄▅▆▇█).
+  --width <waybar_cava_width>     Specify the width of the bar.
+  --range <waybar_cava_range>     Specify the range of the bar.
+  --help                  Display this help message and exit.
+  --restart               Restart the waybar_cava.
+  --mode <waybar_cava_stbmode>   Specify the standby mode for waybar cava (default: 0).
+HELP
+    exit 1
+}
+
+# Parse command line arguments using getopt
+if ! ARGS=$(getopt -o "hr" -l "help,bar:,width:,range:,restart,mode:" -n "$0" -- "$@"); then
+    usage
+fi
+
+eval set -- "$ARGS"
+while true; do
+    case "$1" in
+    --help | -h)
+        usage
+        ;;
+    --bar)
+        waybar_cava_bar="$2"
+        shift 2
+        ;;
+    --width)
+        waybar_cava_width="$2"
+        shift 2
+        ;;
+    --range)
+        waybar_cava_range="$2"
+        shift 2
+        ;;
+    --restart) # restart the waybar_cava
+        pkill -f "cava -p /tmp/bar_cava_config"
+        exit 0
+        ;;
+    --mode)
+        waybar_cava_stbmode="$2"
+        shift 2
+        ;;
+    --)
+        shift
+        break
+        ;;
+    *)
+        usage
+        ;;
+    esac
+done
+
+bar="${waybar_cava_bar:-▁▂▃▄▅▆▇█}"
+dict="s/;//g"
+
+# Calculate the length of the bar outside the loop
+bar_length=${#bar}
+bar_width=${waybar_cava_width:-${bar_length}}
+bar_range=${waybar_cava_range:-$((bar_length - 1))}
+
+standby_mode=${waybar_cava_stbmode:-3} # 0:clean, 1:blank, 2:full,3:last
+if [ "${standby_mode}" -le 0 ]; then unset standby_bar; fi
+# 
+# Create dictionary to replace char with bar
+i=0
+while [ $i -lt "${bar_length}" ] || [ $i -lt "${bar_width}" ]; do
+    if [ $i -lt "${bar_length}" ]; then
+        dict="$dict;s/$i/${bar:$i:1}/g"
+    fi
+    if [ $i -lt "${bar_width}" ] && [ "${standby_mode}" -gt 0 ]; then
+        if [ "${standby_mode}" -eq 2 ]; then
+            standby_bar="$standby_bar${bar:$i:1}"
+        elif [ "${standby_mode}" -eq 1 ]; then
+            standby_bar="$standby_bar "
+        fi
+    fi
+    ((i++))
+done
+
+# Create cava config
+config_file="/tmp/bar_cava_config"
+cat >"$config_file" <<EOF
+[general]
+bars = ${bar_width}
+sleep_timer = 1
+
+[input]
+method = pulse
+source = auto
+[output]
+method = raw
+raw_target = /dev/stdout
+data_format = ascii
+ascii_max_range = ${bar_range}
+EOF
+
+listen_to_cava() {
+    echo ""
+    while IFS= read -r line; do
+        if grep -qE "^0;(0;)*$" <<<"$line" && [ "${standby_mode}" -ne 3 ]; then echo "${standby_bar}" && continue; fi
+        sed -u "$dict" <<<"${line}"
+    done < <(cava -p "$config_file")
+}
+
+# Call the function
+listen_to_cava &
+disown # saves a tiny bit of memory