v3
This commit is contained in:
jpmvaz
@@ -0,0 +1,329 @@
|
||||
#!/usr/bin/env python3
|
||||
"""
|
||||
Folder Compressor using 7-Zip
|
||||
Lists available folders, lets you select one, and compresses it
|
||||
using 7-Zip with no compression (store) at fastest speed.
|
||||
Real-time progress bar shown during compression.
|
||||
"""
|
||||
|
||||
import os
|
||||
import re
|
||||
import sys
|
||||
import shutil
|
||||
import subprocess
|
||||
import time
|
||||
from pathlib import Path
|
||||
|
||||
|
||||
# ── Terminal color helpers ────────────────────────────────────────────────────
|
||||
|
||||
SUPPORTS_COLOR = (
|
||||
sys.stdout.isatty()
|
||||
and (sys.platform != "win32" or os.environ.get("WT_SESSION") or os.environ.get("TERM"))
|
||||
)
|
||||
|
||||
def _c(code: str, text: str) -> str:
|
||||
return f"\033[{code}m{text}\033[0m" if SUPPORTS_COLOR else text
|
||||
|
||||
def green(t): return _c("32", t)
|
||||
def yellow(t): return _c("33", t)
|
||||
def cyan(t): return _c("36", t)
|
||||
def bold(t): return _c("1", t)
|
||||
def dim(t): return _c("2", t)
|
||||
def red(t): return _c("31", t)
|
||||
|
||||
|
||||
# ── Size / time formatters ────────────────────────────────────────────────────
|
||||
|
||||
def fmt_size(b: float) -> str:
|
||||
for unit in ("B", "KB", "MB", "GB", "TB"):
|
||||
if b < 1024:
|
||||
return f"{b:.1f} {unit}"
|
||||
b /= 1024
|
||||
return f"{b:.1f} PB"
|
||||
|
||||
|
||||
def fmt_time(seconds: float) -> str:
|
||||
s = int(seconds)
|
||||
if s < 60:
|
||||
return f"{s}s"
|
||||
m, s = divmod(s, 60)
|
||||
if m < 60:
|
||||
return f"{m}m {s:02d}s"
|
||||
h, m = divmod(m, 60)
|
||||
return f"{h}h {m:02d}m {s:02d}s"
|
||||
|
||||
|
||||
# ── Folder size calculator ────────────────────────────────────────────────────
|
||||
|
||||
def folder_size(path: Path) -> int:
|
||||
total = 0
|
||||
for root, _, files in os.walk(path):
|
||||
for f in files:
|
||||
try:
|
||||
total += os.path.getsize(os.path.join(root, f))
|
||||
except OSError:
|
||||
pass
|
||||
return total
|
||||
|
||||
|
||||
# ── 7-Zip locator ─────────────────────────────────────────────────────────────
|
||||
|
||||
def find_7zip() -> str | None:
|
||||
for name in ("7z", "7za", "7zz", "7zip"):
|
||||
path = shutil.which(name)
|
||||
if path:
|
||||
return path
|
||||
if sys.platform == "win32":
|
||||
for p in (
|
||||
r"C:\Program Files\7-Zip\7z.exe",
|
||||
r"C:\Program Files (x86)\7-Zip\7z.exe",
|
||||
):
|
||||
if os.path.isfile(p):
|
||||
return p
|
||||
return None
|
||||
|
||||
|
||||
# ── Folder listing / selection ────────────────────────────────────────────────
|
||||
|
||||
def list_folders(base_dir: str) -> list[Path]:
|
||||
base = Path(base_dir)
|
||||
return sorted(
|
||||
(e for e in base.iterdir() if e.is_dir()),
|
||||
key=lambda p: p.name.lower(),
|
||||
)
|
||||
|
||||
|
||||
def prompt_folder_selection(folders: list[Path]) -> Path:
|
||||
print("\nAvailable folders:\n")
|
||||
for i, folder in enumerate(folders, start=1):
|
||||
try:
|
||||
sz = folder_size(folder)
|
||||
size_label = dim(f" ({fmt_size(sz)})")
|
||||
except PermissionError:
|
||||
size_label = dim(" (no access)")
|
||||
print(f" {dim(f'[{i:>3}]')} {folder.name}{size_label}")
|
||||
|
||||
print()
|
||||
while True:
|
||||
try:
|
||||
raw = input("Enter the number of the folder to compress: ").strip()
|
||||
idx = int(raw)
|
||||
if 1 <= idx <= len(folders):
|
||||
return folders[idx - 1]
|
||||
print(f" Please enter a number between 1 and {len(folders)}.")
|
||||
except ValueError:
|
||||
print(" Invalid input — please enter a number.")
|
||||
except (EOFError, KeyboardInterrupt):
|
||||
print("\nAborted.")
|
||||
sys.exit(0)
|
||||
|
||||
|
||||
# ── Progress bar renderer ─────────────────────────────────────────────────────
|
||||
|
||||
BAR_WIDTH = 36
|
||||
|
||||
# Matches 7-Zip progress segments like "47% 3 + path/to/file.bin"
|
||||
# or just "47%" when no file is on the same segment
|
||||
_PROGRESS_RE = re.compile(r"(\d{1,3})%(?:\s+(\d+)\s*\+?\s*(.*))?")
|
||||
|
||||
# Split on ANY run of backspaces (\x08) or carriage returns (\r).
|
||||
# - Linux/macOS 7-Zip uses \x08 to erase and rewrite the progress line
|
||||
# - Windows 7-Zip uses \r to overwrite the progress line
|
||||
# Both need to be handled so the script works cross-platform.
|
||||
_SPLIT_RE = re.compile(rb"[\x08\r]+")
|
||||
|
||||
|
||||
def _move_up(n: int):
|
||||
if SUPPORTS_COLOR:
|
||||
sys.stdout.write(f"\033[{n}A")
|
||||
|
||||
|
||||
def _clear_line():
|
||||
if SUPPORTS_COLOR:
|
||||
sys.stdout.write("\033[2K\r")
|
||||
else:
|
||||
sys.stdout.write("\r" + " " * 78 + "\r")
|
||||
|
||||
|
||||
def _redraw(pct: int, elapsed: float, files_done: int,
|
||||
current_file: str, speed_bps: float):
|
||||
"""Overwrite the two reserved progress lines in-place."""
|
||||
filled = int(BAR_WIDTH * pct / 100)
|
||||
bar = "█" * filled + "░" * (BAR_WIDTH - filled)
|
||||
color = green if pct == 100 else cyan
|
||||
speed_s = f"{fmt_size(speed_bps)}/s" if speed_bps > 0 else "─"
|
||||
|
||||
_move_up(2)
|
||||
|
||||
# Line 1 — bar + stats
|
||||
_clear_line()
|
||||
sys.stdout.write(
|
||||
f" {color(bar)} {bold(f'{pct:>3}%')}"
|
||||
f" {dim('elapsed')} {dim(fmt_time(elapsed))}"
|
||||
f" {yellow(speed_s)}"
|
||||
f" {dim(f'files: {files_done}')}\n"
|
||||
)
|
||||
|
||||
# Line 2 — current file
|
||||
_clear_line()
|
||||
label = current_file.strip() or "starting…"
|
||||
if len(label) > 60:
|
||||
label = "…" + label[-59:]
|
||||
sys.stdout.write(f" {dim('↳ ' + label)}\n")
|
||||
|
||||
sys.stdout.flush()
|
||||
|
||||
|
||||
# ── Compression with real-time progress ───────────────────────────────────────
|
||||
|
||||
def compress_folder(seven_zip: str, folder: Path, output_dir: Path) -> Path:
|
||||
archive_path = output_dir / (folder.name + ".7z")
|
||||
|
||||
print(f"\n {dim('Calculating source size…')} ", end="", flush=True)
|
||||
src_size = folder_size(folder)
|
||||
print(fmt_size(src_size))
|
||||
|
||||
cmd = [
|
||||
seven_zip,
|
||||
"a",
|
||||
"-t7z",
|
||||
"-mx=0", # store – no compression
|
||||
"-ms=off", # no solid archive
|
||||
"-bsp1", # stream progress to stdout
|
||||
str(archive_path),
|
||||
str(folder),
|
||||
]
|
||||
|
||||
print(f"\n {dim('Command: ' + ' '.join(cmd))}")
|
||||
print()
|
||||
print(" " + "─" * 64)
|
||||
|
||||
# Reserve two blank lines for the live display
|
||||
print()
|
||||
print()
|
||||
|
||||
start_time = time.monotonic()
|
||||
last_pct = 0
|
||||
files_done = 0
|
||||
current_file = ""
|
||||
speed_bps = 0.0
|
||||
last_bytes = 0.0
|
||||
speed_ts = start_time
|
||||
|
||||
proc = subprocess.Popen(
|
||||
cmd,
|
||||
stdout=subprocess.PIPE,
|
||||
stderr=subprocess.STDOUT,
|
||||
# Raw binary — we parse bytes ourselves to handle \x08 and \r
|
||||
)
|
||||
|
||||
buf = b""
|
||||
|
||||
while True:
|
||||
chunk = proc.stdout.read(256)
|
||||
if not chunk:
|
||||
break
|
||||
|
||||
buf += chunk
|
||||
elapsed = time.monotonic() - start_time
|
||||
|
||||
# Split on runs of \x08 (Linux/macOS) or \r (Windows).
|
||||
# Each segment between separators is one "visible write" from 7-Zip.
|
||||
segments = _SPLIT_RE.split(buf)
|
||||
|
||||
# Keep the last (potentially incomplete) segment for the next iteration
|
||||
buf = segments[-1]
|
||||
|
||||
for seg in segments[:-1]:
|
||||
text = seg.decode("utf-8", errors="replace").strip()
|
||||
if not text:
|
||||
continue
|
||||
|
||||
m = _PROGRESS_RE.search(text)
|
||||
if m:
|
||||
pct = min(int(m.group(1)), 100)
|
||||
files_done = int(m.group(2)) if m.group(2) else files_done
|
||||
fname = (m.group(3) or "").strip()
|
||||
if fname:
|
||||
current_file = fname
|
||||
|
||||
# Rolling speed estimate (recalculate every 0.4 s)
|
||||
if src_size > 0 and pct > 0:
|
||||
bytes_done = src_size * pct / 100
|
||||
now = time.monotonic()
|
||||
dt = now - speed_ts
|
||||
if dt >= 0.4:
|
||||
speed_bps = (bytes_done - last_bytes) / dt
|
||||
last_bytes = bytes_done
|
||||
speed_ts = now
|
||||
|
||||
last_pct = pct
|
||||
_redraw(pct, elapsed, files_done, current_file, speed_bps)
|
||||
|
||||
proc.wait()
|
||||
elapsed_total = time.monotonic() - start_time
|
||||
|
||||
# Lock bar at 100% on success
|
||||
if proc.returncode == 0:
|
||||
_redraw(100, elapsed_total, files_done, current_file, speed_bps)
|
||||
|
||||
print()
|
||||
print(" " + "─" * 64)
|
||||
|
||||
if proc.returncode == 0:
|
||||
arc_size = archive_path.stat().st_size
|
||||
avg_speed = src_size / elapsed_total if elapsed_total > 0 else 0
|
||||
|
||||
print(f"\n {green('✅ Archive created successfully!')}")
|
||||
print(f" {bold('Path')} : {archive_path}")
|
||||
print(f" {bold('Source')} : {fmt_size(src_size)}")
|
||||
print(f" {bold('Archive')} : {fmt_size(arc_size)}")
|
||||
print(f" {bold('Time')} : {fmt_time(elapsed_total)}")
|
||||
print(f" {bold('Avg speed')}: {fmt_size(avg_speed)}/s")
|
||||
else:
|
||||
print(f"\n {red(f'❌ 7-Zip exited with code {proc.returncode}.')}")
|
||||
sys.exit(proc.returncode)
|
||||
|
||||
return archive_path
|
||||
|
||||
|
||||
# ── Entry point ───────────────────────────────────────────────────────────────
|
||||
|
||||
def main():
|
||||
scan_dir = os.path.abspath(sys.argv[1] if len(sys.argv) > 1 else os.getcwd())
|
||||
|
||||
if not os.path.isdir(scan_dir):
|
||||
print(f"Error: '{scan_dir}' is not a valid directory.")
|
||||
sys.exit(1)
|
||||
|
||||
print(f"\n{bold('📦 Folder Compressor')}")
|
||||
print(f" Scanning: {cyan(scan_dir)}\n")
|
||||
|
||||
seven_zip = find_7zip()
|
||||
if not seven_zip:
|
||||
print(
|
||||
f"\n{red('❌ 7-Zip not found.')}\n"
|
||||
" Install it and make sure '7z' (or '7za') is on your PATH.\n"
|
||||
" • Linux : sudo apt install p7zip-full\n"
|
||||
" • macOS : brew install p7zip\n"
|
||||
" • Windows: https://www.7-zip.org/download.html"
|
||||
)
|
||||
sys.exit(1)
|
||||
|
||||
print(f" {green('✔')} 7-Zip: {dim(seven_zip)}")
|
||||
|
||||
folders = list_folders(scan_dir)
|
||||
if not folders:
|
||||
print(f"\nNo sub-folders found in '{scan_dir}'.")
|
||||
sys.exit(0)
|
||||
|
||||
chosen = prompt_folder_selection(folders)
|
||||
print(f"\n {green('✔')} Selected: {bold(chosen.name)}")
|
||||
|
||||
compress_folder(seven_zip, chosen, chosen.parent)
|
||||
print()
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user