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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,6 @@ | ||
| "custom/cava": { | ||
| "format": "{}", | ||
| "exec": "waybar_cava.sh", | ||
| "format": "{}" | ||
| }, | ||
| "restart-interval": 1, | ||
| "hide-empty": true | ||
| }, |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,35 +1,117 @@ | ||
| #!/bin/env bash | ||
| #----- Optimized bars animation without much CPU usage increase -------- | ||
| bar="▁▂▃▄▅▆▇█" | ||
| #----- 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:-0} # 0:clean, 1:blank, 2:full,3:last | ||
| if [ "${standby_mode}" -le 0 ]; then unset standby_bar; fi | ||
| # Create dictionary to replace char with bar | ||
| for ((i = 0; i < bar_length; i++)); do | ||
| dict+=";s/$i/${bar:$i:1}/g" | ||
| 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 = 10 | ||
| bars = ${bar_width} | ||
| sleep_timer = 1 | ||
| [input] | ||
| method = pulse | ||
| source = auto | ||
| [output] | ||
| method = raw | ||
| raw_target = /dev/stdout | ||
| data_format = ascii | ||
| ascii_max_range = 7 | ||
| ascii_max_range = ${bar_range} | ||
| EOF | ||
|
|
||
| # Kill cava if it's already running | ||
| pkill -f "cava -p $config_file" | ||
| listen_to_cava() { | ||
| echo "" | ||
| while IFS= read -r line; do | ||
| if grep -qE "^0;(0;)*$" <<<"$line" && [ "${standby_mode}" -ne 3 ]; then echo "${standby_bar}" && continue; fi | ||
| sed -u "$dict" <<<"${line}" | ||
| done < <(cava -p "$config_file") | ||
| } | ||
|
|
||
| # Read stdout from cava and perform substitution in a single sed command | ||
| cava -p "$config_file" | sed -u "$dict" | ||
| # Call the function | ||
| listen_to_cava & | ||
| disown # saves a tiny bit of memory |
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