Vorbereitung Batch-Mode und Anpassung der Scripte und Readme
This commit is contained in:
@@ -1,8 +1,9 @@
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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PPTX Grafik-Komprimier-Tool (nur CaesiumCLT, Multi-Thread, sauberes Cleanup)
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Version: 1.0.0
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PPTX Grafik-Komprimier-Tool (nur CaesiumCLT, Multi-Thread, Batch, sauberes Cleanup)
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Version: 1.1.2
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Highlights:
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- Caesium-Scratch außerhalb des PPTX-Arbeitsverzeichnisses -> keine Tempfiles in finaler PPTX
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@@ -11,8 +12,9 @@ Highlights:
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- Log: image_name,size_before,size_after,saving,saving_percent
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- Summary inkl. Zeit benötigt
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Benutzung:
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python pptx_image_compress.py -i input.pptx [-o output.pptx] [-t THREADS] [--version]
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Änderungen in 1.1.2:
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- Batch Mode hinzugefügt
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- Shellscript-Fix (Store-Alias vermeiden) und Doku-Anpassungen
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"""
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import argparse
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@@ -23,17 +25,16 @@ import tempfile
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import shutil
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import subprocess
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import time
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import fnmatch
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from glob import glob
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from pathlib import Path
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from datetime import timedelta
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from concurrent.futures import ThreadPoolExecutor, as_completed
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from threading import Lock
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# -------------------- Version --------------------
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__version__ = "1.0.0"
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__version__ = "1.1.2"
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# -------------------- Konfiguration --------------------
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ALLOWED_EXT = {".jpg", ".jpeg", ".png", ".webp", ".gif"} # GIF wird übersprungen
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CAESIUM_QUALITY = 90 # -q 90
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PROGRESS_BAR_LEN = 40
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TEMP_PREFIX = "pptx_compress_"
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@@ -42,7 +43,6 @@ TEMP_PREFIX = "pptx_compress_"
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def human_mb(nbytes: int) -> float:
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return round(nbytes / (1024 * 1024), 2)
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def ensure_clean_file(path: Path):
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if path.exists():
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try:
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@@ -53,7 +53,6 @@ def ensure_clean_file(path: Path):
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except Exception:
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pass
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def cleanup_old_temps():
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tmp_root = Path(tempfile.gettempdir())
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for p in tmp_root.glob(f"{TEMP_PREFIX}*"):
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@@ -65,7 +64,6 @@ def cleanup_old_temps():
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except Exception:
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pass
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def print_progress(i: int, total: int):
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if total <= 0:
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return
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@@ -74,7 +72,6 @@ def print_progress(i: int, total: int):
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pct = int(i * 100 / total)
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print(f"\rBilder: |{bar}| {i}/{total} ({pct}%)", end="", flush=True)
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def zip_dir_to_pptx(src_dir: Path, out_pptx: Path):
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with zipfile.ZipFile(out_pptx, "w", compression=zipfile.ZIP_DEFLATED) as z:
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for root, _, files in os.walk(src_dir):
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@@ -83,53 +80,32 @@ def zip_dir_to_pptx(src_dir: Path, out_pptx: Path):
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rel = full.relative_to(src_dir)
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z.write(full, arcname=str(rel))
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def which(cmd: str) -> str | None:
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def which(cmd: str):
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return shutil.which(cmd)
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def compress_with_caesium(original: Path, out_dir: Path, caesium_threads: int | None) -> Path | None:
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"""
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Ruft caesiumclt auf, um eine komprimierte Version zu erzeugen.
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Output wird ins out_dir geschrieben (gleicher Filename).
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Gibt Pfad zur erzeugten Datei zurück oder None bei Fehler.
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"""
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def compress_with_caesium(original: Path, out_dir: Path, caesium_threads: int | None, quality: int) -> Path | None:
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exe = which("caesiumclt")
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if not exe:
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raise RuntimeError(
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"❌ 'caesiumclt' wurde nicht gefunden. Bitte CaesiumCLT installieren und in PATH verfügbar machen."
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)
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raise RuntimeError("❌ 'caesiumclt' wurde nicht gefunden. Bitte CaesiumCLT installieren und in PATH verfügbar machen.")
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out_dir.mkdir(parents=True, exist_ok=True)
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# Nur Formate an Caesium geben, die es unterstützt: JPG/JPEG, PNG, WEBP
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ext = original.suffix.lower()
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if ext not in {".jpg", ".jpeg", ".png", ".webp"}:
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return None # GIF & andere werden übersprungen
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cmd = [
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exe,
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"-q", str(CAESIUM_QUALITY),
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"-O", "bigger", # <<< nur überschreiben, wenn Ziel größer ist
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"-o", str(out_dir),
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]
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return None
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cmd = [exe, "-q", str(quality), "-O", "bigger", "-o", str(out_dir)]
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if caesium_threads is not None:
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cmd += ["--threads", str(caesium_threads)]
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cmd += [str(original)]
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try:
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r = subprocess.run(cmd, capture_output=True, text=True)
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if r.returncode != 0:
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sys.stderr.write(f"\n[caesiumclt] Fehler bei {original.name}:\n{r.stderr}\n")
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sys.stderr.write(f"[caesiumclt] Fehler bei {original.name}:{r.stderr}")
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return None
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out_file = out_dir / original.name
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return out_file if out_file.exists() else None
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except Exception as ex:
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sys.stderr.write(f"\n[caesiumclt] Ausnahme bei {original.name}: {ex}\n")
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sys.stderr.write(f"[caesiumclt] Ausnahme bei {original.name}: {ex}")
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return None
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def format_duration(seconds: float) -> str:
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total_ms = int(round(seconds * 1000))
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td = timedelta(milliseconds=total_ms)
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@@ -139,61 +115,37 @@ def format_duration(seconds: float) -> str:
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return f"{hms}.{frac[:2]}"
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return base
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def main():
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# -------------------- Core per-deck processing --------------------
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def process_single_deck(input_pptx: Path, output_pptx: Path, threads: int, quality: int) -> dict:
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start_time = time.perf_counter()
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parser = argparse.ArgumentParser(
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description="PPTX Grafik-Komprimier-Tool (nur CaesiumCLT, Multi-Thread, sauberes Cleanup)",
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formatter_class=argparse.ArgumentDefaultsHelpFormatter,
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)
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parser.add_argument("-i", "--input", help="Input-PPTX", required=False)
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parser.add_argument("-o", "--output", help="Output-PPTX", required=False)
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parser.add_argument(
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"-t", "--threads",
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type=int,
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default=min(32, os.cpu_count() or 4),
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help="Anzahl paralleler Threads für die Bildverarbeitung"
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)
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parser.add_argument(
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"--version",
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action="version",
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version=f"%(prog)s {__version__}"
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)
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args = parser.parse_args()
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if not args.input:
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parser.print_help()
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sys.exit(1)
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input_pptx = Path(args.input).resolve()
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if not input_pptx.exists() or input_pptx.suffix.lower() != ".pptx":
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print("❌ Eingabedatei existiert nicht oder ist keine .pptx")
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sys.exit(2)
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if args.output:
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output_pptx = Path(args.output).resolve()
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else:
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output_pptx = input_pptx.with_name(f"{input_pptx.stem}_compressed.pptx")
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# Vorherige Temp-Files & existierendes Output löschen
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cleanup_old_temps()
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ensure_clean_file(output_pptx)
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# --- Zwei getrennte Temp-Verzeichnisse ---
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work_dir = Path(tempfile.mkdtemp(prefix=TEMP_PREFIX + "work_")) # entpackte PPTX
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scratch_dir = Path(tempfile.mkdtemp(prefix=TEMP_PREFIX + "scratch_")) # Caesium-Ausgaben (außerhalb!)
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# Logdatei neben Output
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log_file = output_pptx.with_suffix(".log")
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ensure_clean_file(log_file)
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log_lines = ["image_name,size_before,size_after,saving,saving_percent\n"]
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size_before = input_pptx.stat().st_size
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result = {
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"input": str(input_pptx),
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"output": str(output_pptx),
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"ok": False,
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"size_before": 0,
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"size_after": 0,
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"elapsed_sec": 0.0,
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"error": None,
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"log_file": None,
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}
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try:
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# Entpacken
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if not input_pptx.exists() or input_pptx.suffix.lower() != ".pptx":
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raise ValueError("Eingabedatei existiert nicht oder ist keine .pptx")
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cleanup_old_temps()
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ensure_clean_file(output_pptx)
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work_dir = Path(tempfile.mkdtemp(prefix=TEMP_PREFIX + "work_"))
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scratch_dir = Path(tempfile.mkdtemp(prefix=TEMP_PREFIX + "scratch_"))
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log_file = output_pptx.with_suffix(".log")
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ensure_clean_file(log_file)
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log_lines = ["image_name,size_before,size_after,saving,saving_percent"]
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size_before = input_pptx.stat().st_size
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result["size_before"] = size_before
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with zipfile.ZipFile(input_pptx, "r") as z:
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z.extractall(work_dir)
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@@ -205,18 +157,13 @@ def main():
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images.append(f)
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total = len(images)
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print(f"🔧 Finde Bilder in {media_dir} ... {total} Kandidaten")
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print(f"🔧 {input_pptx.name}: {total} Bild(er) gefunden")
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print_progress(0, total)
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# Vorab prüfen, ob caesiumclt verfügbar ist
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if not which("caesiumclt"):
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print("\n❌ 'caesiumclt' nicht gefunden. Bitte installieren und in PATH verfügbar machen.")
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sys.exit(3)
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raise RuntimeError("'caesiumclt' nicht gefunden. Bitte installieren und in PATH verfügbar machen.")
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# Oversubscription vermeiden: viele Python-Threads -> caesium intern 1 Thread
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caesium_threads = 1 if args.threads and args.threads > 1 else None
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# Thread-sichere Fortschritts- & Log-Verwaltung
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caesium_threads = 1 if threads and threads > 1 else None
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lock = Lock()
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done_count = 0
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@@ -224,52 +171,42 @@ def main():
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nonlocal done_count
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ext = img_path.suffix.lower()
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orig_size = img_path.stat().st_size
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# GIF überspringen
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if ext == ".gif":
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with lock:
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done_count += 1
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log_lines.append(f"{img_path.name},{orig_size},{orig_size},0,0.0\n")
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log_lines.append(f"{img_path.name},{orig_size},{orig_size},0,0.0")
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print_progress(done_count, total)
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return
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chosen_size = orig_size
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try:
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# Eigener Output-Unterordner pro Bild, um Kollisionen zu vermeiden
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out_sub = scratch_dir / f"img_{idx:06d}"
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caesium_out = compress_with_caesium(img_path, out_sub, caesium_threads)
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caesium_out = compress_with_caesium(img_path, out_sub, caesium_threads, quality)
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if caesium_out and caesium_out.exists():
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s = caesium_out.stat().st_size
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if s < orig_size:
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# kleineren ersetzen (atomar)
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tmp_target = img_path.with_suffix(img_path.suffix + ".tmp")
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shutil.copy2(caesium_out, tmp_target)
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tmp_target.replace(img_path)
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chosen_size = s
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except Exception:
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chosen_size = orig_size # Original beibehalten
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chosen_size = orig_size
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finally:
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saving = orig_size - chosen_size
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saving_percent = round((saving / orig_size) * 100, 2) if orig_size > 0 else 0.0
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with lock:
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log_lines.append(f"{img_path.name},{orig_size},{chosen_size},{saving},{saving_percent}\n")
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log_lines.append(f"{img_path.name},{orig_size},{chosen_size},{saving},{saving_percent}")
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done_count += 1
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print_progress(done_count, total)
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# Parallel ausführen
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if total > 0:
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with ThreadPoolExecutor(max_workers=max(1, args.threads)) as ex:
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with ThreadPoolExecutor(max_workers=max(1, threads)) as ex:
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futures = [ex.submit(worker, i, p) for i, p in enumerate(images, start=1)]
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for _ in as_completed(futures):
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pass # Fortschritt wird im Worker gezeichnet
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pass
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print() # newline nach Progressbar
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print() # newline
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# --- Safety-Cleanup innerhalb des Arbeitsverzeichnisses ---
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# 1) Entferne evtl. vorhandene caesium*-Ordner (aus alten Runs)
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# Safety cleanup inside work_dir
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for p in work_dir.rglob("*"):
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try:
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if p.is_dir() and p.name.lower().startswith("caesium"):
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@@ -277,8 +214,6 @@ def main():
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except Exception:
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pass
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# 2) Lösche eventuelle .tmp-Dateien in ppt/media
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media_dir = work_dir / "ppt" / "media"
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if media_dir.exists():
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for f in media_dir.iterdir():
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if f.is_file() and f.suffix.lower() == ".tmp":
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@@ -287,47 +222,194 @@ def main():
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except Exception:
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pass
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# Neue PPTX bauen (nur work_dir -> scratch_dir liegt außerhalb und ist damit sicher ausgeschlossen)
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zip_dir_to_pptx(work_dir, output_pptx)
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size_after = output_pptx.stat().st_size
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result["size_after"] = size_after
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# Log schreiben
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try:
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with open(log_file, "w", encoding="utf-8") as f:
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f.writelines(log_lines)
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except Exception:
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pass
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# Summary
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savings_pct = 0.0
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if size_before > 0:
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savings_pct = round(100.0 * (size_before - size_after) / size_before, 2)
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elapsed = time.perf_counter() - start_time
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result["elapsed_sec"] = elapsed
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result["log_file"] = str(log_file)
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result["ok"] = True
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print("\n✅ Fertig!")
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print("Summary")
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print("-------")
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print(f"Version: {__version__}")
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print(f"Name: {output_pptx.name}")
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print(f"Datei-Größe vorher: {human_mb(size_before)} MB")
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print(f"Datei-Größe nachher: {human_mb(size_after)} MB")
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print(f"Ersparnis: {savings_pct}%")
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print(f"Zeit benötigt: {format_duration(elapsed)}")
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print(f"Log-Datei: {log_file}")
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savings_pct = 0.0 if size_before == 0 else round(100.0 * (size_before - size_after) / size_before, 2)
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print(f"✅ Fertig! ({input_pptx.name})")
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print("📋 Zusammenfassung ----------------")
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print(" Vorher: ", human_mb(size_before), "MB")
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print(" Nachher: ", human_mb(size_after), "MB")
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print(" Ersparnis: ", f"{savings_pct}%")
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print(" Zeit: ", format_duration(elapsed))
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print(" Log: ", log_file)
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except Exception as e:
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result["error"] = str(e)
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finally:
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# Aufräumen ALLER temporären Dateien/Ordner
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try:
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shutil.rmtree(work_dir, ignore_errors=True)
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shutil.rmtree(work_dir, ignore_errors=True) # type: ignore[name-defined]
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except Exception:
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pass
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try:
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shutil.rmtree(scratch_dir, ignore_errors=True)
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shutil.rmtree(scratch_dir, ignore_errors=True) # type: ignore[name-defined]
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except Exception:
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pass
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# Zusätzlich: ältere Reste entfernen
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cleanup_old_temps()
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return result
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if __name__ == "__main__":
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# -------------------- Input helpers --------------------
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def expand_inputs(inputs: list[str]) -> list[Path]:
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files: list[Path] = []
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for inp in inputs:
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p = Path(inp)
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if any(ch in inp for ch in ['*', '?']):
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for g in glob(inp):
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if g.lower().endswith('.pptx'):
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files.append(Path(g).resolve())
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else:
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if p.is_dir():
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for g in p.glob('*.pptx'):
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files.append(g.resolve())
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else:
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if p.suffix.lower() == '.pptx':
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files.append(p.resolve())
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seen = set()
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uniq = []
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for f in files:
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if str(f) not in seen:
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uniq.append(f)
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seen.add(str(f))
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return uniq
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def collect_from_dir(input_dir: Path, pattern: str, recursive: bool) -> list[Path]:
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files: list[Path] = []
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if recursive:
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for root, _, names in os.walk(input_dir):
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for n in names:
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if fnmatch.fnmatch(n, pattern):
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p = Path(root) / n
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if p.suffix.lower() == '.pptx':
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files.append(p.resolve())
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else:
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for p in input_dir.glob(pattern):
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if p.suffix.lower() == '.pptx':
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files.append(p.resolve())
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seen = set()
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out = []
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for f in files:
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s = str(f)
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if s not in seen:
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out.append(f)
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seen.add(s)
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return out
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# -------------------- CLI --------------------
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def main():
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parser = argparse.ArgumentParser(
|
||||
description="PPTX Grafik-Komprimier-Tool (nur CaesiumCLT, Multi-Thread, Batch, sauberes Cleanup)",
|
||||
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
|
||||
)
|
||||
parser.add_argument('-i','--input', nargs='*', help='Input-PPTX (eine oder mehrere, Wildcards erlaubt). Bei mehreren: -O erforderlich.')
|
||||
parser.add_argument('-o','--output', help='Output-PPTX (nur Single-Mode)')
|
||||
parser.add_argument('-O','--output-dir', help='Output-Verzeichnis (erforderlich für Batch)')
|
||||
parser.add_argument('--input-dir', help='Eingabe-Verzeichnis (optional, für Batch)')
|
||||
parser.add_argument('--pattern', default='*.pptx', help='Dateimuster für --input-dir')
|
||||
parser.add_argument('--recursive', action='store_true', help='Rekursiv in --input-dir suchen')
|
||||
#parser.add_argument('-t','--threads', type=int, default=min(32, os.cpu_count() or 4), help='Anzahl paralleler Threads pro Datei')
|
||||
parser.add_argument('-t','--threads', type=int, default=16, help='Anzahl paralleler Threads pro Datei')
|
||||
parser.add_argument('-q','--quality', type=int, default=90, help='Qualität für caesiumclt (0..100), höher = bessere Qualität / größere Datei')
|
||||
parser.add_argument('--version', action='version', version=f'%(prog)s {__version__}')
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
print("Threads used: ", args.threads," Threads")
|
||||
|
||||
if args.quality < 0 or args.quality > 100:
|
||||
print('❌ Ungültige Qualität. Erlaubt: 0..100')
|
||||
sys.exit(1)
|
||||
|
||||
input_files: list[Path] = []
|
||||
if args.input:
|
||||
input_files.extend(expand_inputs(args.input))
|
||||
if args.input_dir:
|
||||
input_files.extend(collect_from_dir(Path(args.input_dir), args.pattern, args.recursive))
|
||||
|
||||
if len(input_files) == 0:
|
||||
parser.print_help()
|
||||
sys.exit(1)
|
||||
|
||||
batch_mode = len(input_files) > 1
|
||||
|
||||
if batch_mode and not args.output_dir:
|
||||
print('❌ Batch-Modus erkannt. Bitte -O/--output-dir angeben.')
|
||||
sys.exit(2)
|
||||
|
||||
if not which('caesiumclt'):
|
||||
print("❌ 'caesiumclt' nicht gefunden. Bitte installieren und in PATH verfügbar machen.")
|
||||
sys.exit(3)
|
||||
|
||||
overall_before = 0
|
||||
overall_after = 0
|
||||
successes = 0
|
||||
failures = 0
|
||||
|
||||
if batch_mode:
|
||||
out_dir = Path(args.output_dir).resolve()
|
||||
out_dir.mkdir(parents=True, exist_ok=True)
|
||||
print(f"🗂️ Batch: {len(input_files)} Datei(en). Output-Verzeichnis: {out_dir}")
|
||||
for src in input_files:
|
||||
if not src.exists():
|
||||
print(f"- Übersprungen (nicht gefunden): {src}")
|
||||
failures += 1
|
||||
continue
|
||||
dst = out_dir / f"{src.stem}_compressed.pptx"
|
||||
res = process_single_deck(src, dst, args.threads, args.quality)
|
||||
if res['ok']:
|
||||
successes += 1
|
||||
overall_before += res['size_before']
|
||||
overall_after += res['size_after']
|
||||
else:
|
||||
failures += 1
|
||||
print(f" Fehler: {src.name} -> {res['error']}")
|
||||
else:
|
||||
src = input_files[0]
|
||||
if args.output_dir:
|
||||
Path(args.output_dir).mkdir(parents=True, exist_ok=True)
|
||||
dst = Path(args.output_dir) / f"{src.stem}_compressed.pptx"
|
||||
else:
|
||||
dst = Path(args.output).resolve() if args.output else src.with_name(f"{src.stem}_compressed.pptx")
|
||||
res = process_single_deck(src, dst, args.threads, args.quality)
|
||||
if res['ok']:
|
||||
successes += 1
|
||||
overall_before += res['size_before']
|
||||
overall_after += res['size_after']
|
||||
else:
|
||||
failures += 1
|
||||
print(f" Fehler: {src.name} -> {res['error']}")
|
||||
|
||||
if batch_mode:
|
||||
|
||||
print(f"====== 📊 Gesamt-Summary ======")
|
||||
print(f"✅ Dateien erfolgreich: {successes}")
|
||||
|
||||
if failures > 0:
|
||||
print(f"❌Dateien fehlgeschlagen: {failures}")
|
||||
|
||||
if overall_before > 0:
|
||||
pct = round(100.0 * (overall_before - overall_after) / overall_before, 2)
|
||||
else:
|
||||
pct = 0.0
|
||||
print(f"Gesamtgröße vorher: {human_mb(overall_before)} MB")
|
||||
print(f"Gesamtgröße nachher: {human_mb(overall_after)} MB")
|
||||
print(f"Gesamt-Ersparnis: {pct}%")
|
||||
|
||||
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
|
||||
Reference in New Issue
Block a user