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"""
Misc helper functions.
"""
import json
import os
import pathlib
import subprocess
class Color:
"""Color formats."""
def __init__(self, hex_color):
self.hex_color = hex_color
def __str__(self):
return self.hex_color
@property
def rgb(self):
"""Convert a hex color to rgb."""
return hex_to_rgb(self.hex_color)
@property
def xrgba(self):
"""Convert a hex color to xrdb rgba."""
return hex_to_xrgba(self.hex_color)
def set_grey(colors):
"""Set a grey color based on the brightness
of another color."""
return {
"0": "#666666",
"1": "#666666",
"2": "#757575",
"3": "#999999",
"4": "#999999",
"5": "#8a8a8a",
"6": "#a1a1a1",
"7": "#a1a1a1",
"8": "#a1a1a1",
"9": "#a1a1a1",
}.get(colors[0][1], colors[7])
def read_file(input_file):
"""Read data from a file."""
with open(input_file) as file:
data = file.read().splitlines()
return data
def read_file_json(input_file):
"""Read data from a json file."""
with open(input_file) as json_file:
data = json.load(json_file)
# If wallpaper is unset, set it to "None"
if "wallpaper" not in data:
data["wallpaper"] = "None"
return data
def save_file(data, export_file):
"""Write data to a file."""
with open(export_file, "w") as file:
file.write(data)
def save_file_json(data, export_file):
"""Write data to a json file."""
with open(export_file, "w") as file:
json.dump(data, file, indent=4)
def create_dir(directory):
"""Alias to create the cache dir."""
pathlib.Path(directory).mkdir(parents=True, exist_ok=True)
def hex_to_rgb(color):
"""Convert a hex color to rgb."""
red, green, blue = list(bytes.fromhex(color.strip("#")))
return f"{red},{green},{blue}"
def hex_to_xrgba(color):
"""Convert a hex color to xrdb rgba."""
col = color.lower()
return f"{col[1]}{col[2]}/{col[3]}{col[4]}/{col[5]}{col[6]}/ff"
def disown(*cmd):
"""Call a system command in the background,
disown it and hide it's output."""
subprocess.Popen(["nohup"] + list(cmd),
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
preexec_fn=os.setpgrp)
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