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config/polybar/scripts/cava

@@ -0,0 +1,71 @@
+#!/bin/env python3
+import argparse
+import os
+import signal
+import subprocess
+import sys
+import tempfile
+
+if len(sys.argv) > 1 and sys.argv[1] == '--subproc':
+    ramp_list = ['▁', '▂', '▃', '▄', '▅', '▆', '▇', '█']
+    colors = ['001F00','003F00','005F00','007F00','009F00','00BF00','00DF00','00FF00']
+    while True:
+        cava_input = input().strip().split()
+        cava_input = [int(i) for i in cava_input]
+        output = ''
+        for bar in cava_input:
+            if bar < len(ramp_list):
+                output += "%{F#"+colors[bar]+"}"+ramp_list[bar] + "%{F-}"
+
+            else:
+                output += "%{F#"+colors[-1]+"}"+ramp_list[-1] + "%{F-}"
+
+        print(output)
+
+parser = argparse.ArgumentParser()
+parser.add_argument('-f', '--framerate', type=int, default=60,
+                    help='Framerate to be used by cava, default is 60')
+parser.add_argument('-b', '--bars', type=int, default=8,
+                    help='Amount of bars, default is 8')
+parser.add_argument('-e', '--extra_colors', default='fdd,fcc,fbb,faa',
+                    help='Color gradient used on higher values, separated by commas, default is')
+parser.add_argument('-c', '--channels', choices=['stereo', 'left', 'right', 'average'],
+                    help='Audio channels to be used, defaults to stereo')
+
+opts = parser.parse_args()
+conf_channels = ''
+if opts.channels != 'stereo':
+    conf_channels = (
+        'channels=mono\n'
+       f'mono_option={opts.channels}'
+    )
+
+conf_ascii_max_range = 12 + len([i for i in opts.extra_colors.split(',') if i])
+
+cava_conf = tempfile.mkstemp('','polybar-cava-conf.')[1]
+with open(cava_conf, 'w') as cava_conf_file:
+    cava_conf_file.write(
+        '[general]\n'
+       f'framerate={opts.framerate}\n'
+       f'bars={opts.bars}\n'
+        '[output]\n'
+        'method=raw\n'
+        'data_format=ascii\n'
+       f'ascii_max_range={conf_ascii_max_range}\n'
+        'bar_delimiter=32\n'
+        + conf_channels
+    )
+
+cava_proc = subprocess.Popen(['cava', '-p', cava_conf], stdout=subprocess.PIPE)
+self_proc = subprocess.Popen(['python3', __file__, '--subproc', opts.extra_colors], stdin=cava_proc.stdout)
+
+def cleanup(sig, frame):
+    os.remove(cava_conf)
+    cava_proc.kill()
+    self_proc.kill()
+    sys.exit(0)
+
+signal.signal(signal.SIGTERM, cleanup)
+signal.signal(signal.SIGINT,  cleanup)
+
+self_proc.wait()