File size: 4,458 Bytes
a7d7463 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | """Progress Bar - Show progress for long operations"""
import sys
import time
from typing import Iterable, Optional, Union
from dataclasses import dataclass
from .config import DEFAULT_CONFIG, AnimationConfig
@dataclass
class ProgressBarConfig:
"""Configuration for progress bar appearance"""
width: int = 40
fill_char: str = "█"
empty_char: str = "░"
show_percentage: bool = True
show_count: bool = True
class ProgressBar:
"""Customizable progress bar for terminal"""
def __init__(
self,
iterable: Optional[Iterable] = None,
total: Optional[int] = None,
description: str = "Progress",
config: Optional[ProgressBarConfig] = None,
animation_config: Optional[AnimationConfig] = None,
):
self.iterable = iterable
self.total = total if total is not None else len(iterable) if iterable else 100
self.description = description
self.progress_config = config or ProgressBarConfig()
self.animation_config = animation_config or DEFAULT_CONFIG
self.current = 0
self.start_time = time.time()
def __iter__(self):
"""Make ProgressBar iterable"""
for item in self.iterable or range(self.total):
yield item
self.update(self.current + 1)
def update(self, current: int):
"""Update progress bar to new value"""
self.current = min(current, self.total)
self._render()
def _render(self):
"""Render the progress bar"""
percentage = self.current / self.total if self.total > 0 else 0
filled_len = int(self.progress_config.width * percentage)
empty_len = self.progress_config.width - filled_len
bar = (
self.progress_config.fill_char * filled_len
+ self.progress_config.empty_char * empty_len
)
if self.progress_config.show_percentage:
pct_str = f" {percentage * 100:.1f}%"
else:
pct_str = ""
if self.progress_config.show_count:
count_str = f" [{self.current}/{self.total}]"
else:
count_str = ""
elapsed = time.time() - self.start_time
if self.current > 0:
rate = self.current / elapsed
eta = (self.total - self.current) / rate if rate > 0 else 0
rate_str = f" ETA: {eta:.1f}s"
else:
rate_str = ""
line = f"\r{self.description}: |{bar}|{pct_str}{count_str}{rate_str}"
sys.stdout.write(line)
sys.stdout.flush()
if self.current >= self.total:
sys.stdout.write("\n")
def set_description(self, description: str):
"""Update the description"""
self.description = description
@property
def percent(self) -> float:
"""Get current percentage"""
return self.current / self.total if self.total > 0 else 0
class DownloadProgressBar(ProgressBar):
"""Progress bar designed for file downloads"""
def __init__(self, total_bytes: int, filename: str = "file"):
super().__init__(
total=total_bytes,
description=f"Downloading {filename}",
)
self.total_bytes = total_bytes
def update_bytes(self, current_bytes: int):
"""Update with byte count"""
self.update(current_bytes)
def _render(self):
"""Custom render for byte-based progress"""
percentage = self.current / self.total if self.total > 0 else 0
filled_len = int(self.progress_config.width * percentage)
bar = self.progress_config.fill_char * filled_len
current_mb = self.current / (1024 * 1024)
total_mb = self.total / (1024 * 1024)
line = f"\r{self.description}: {current_mb:.1f}/{total_mb:.1f} MB |{bar}| {percentage * 100:.1f}%"
sys.stdout.write(line)
sys.stdout.flush()
class InfiniteProgressBar:
"""Infinite looping progress bar"""
CHARS = ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"]
PROGRESS = " █▓▒░"
def __init__(self, description: str = "Working"):
self.description = description
self.frame = 0
def spin(self):
"""Generate next frame"""
char = self.CHARS[self.frame % len(self.CHARS)]
self.frame += 1
return f"\r{char} {self.description}..."
def reset(self):
"""Reset frame counter"""
self.frame = 0
|