Пережаты картинки

Report/scripts/compress_screenshots.py

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+#!/usr/bin/env python3
+"""Сжатие только скриншотов в Report/images/ (не PlantUML PNG).
+
+JPEG: quality=28 (ImageMagick).
+PNG-скриншоты (Gradle, ручная схема): pngquant quality 25–40.
+"""
+from __future__ import annotations
+
+import re
+import shutil
+import subprocess
+import sys
+from pathlib import Path
+
+# Имена из IMAGES_REGISTRY: Скриншот UI, Gradle, Ручная схема
+SCREENSHOT_STEMS = {
+    "fig_05_local_vaults",
+    "fig_06_encrypt_dialog",
+    "fig_07_open_close_dialog",
+    "fig_08_rename_delete_dialog",
+    "fig_09_remote_vaults",
+    "fig_10_yandex_oauth",
+    "fig_12_tasks_screen",
+    "fig_13_tasks_notification",
+    "fig_33_storage_secrets_2fa",
+    "fig_34_2fa_single_token",
+    "fig_24_domain_class_manual",
+    "fig_27_gradle_domain_test",
+    "fig_28_gradle_usecases_test",
+    "fig_29_gradle_ui_test",
+    "fig_30_gradle_test_summary",
+    "fig_31_gradle_connected_test",
+}
+
+JPEG_QUALITY = "28"
+PNGQUANT_QUALITY = "25-40"
+
+
+def stem(path: Path) -> str:
+    return path.stem
+
+
+def is_screenshot(path: Path) -> bool:
+    if path.suffix.lower() == ".jpg":
+        return stem(path) in SCREENSHOT_STEMS or path.name.startswith("fig_")
+    if path.suffix.lower() == ".png":
+        return stem(path) in SCREENSHOT_STEMS
+    return False
+
+
+def size_kb(path: Path) -> float:
+    return path.stat().st_size / 1024
+
+
+def compress_jpeg(path: Path, magick: str) -> None:
+    tmp = path.with_suffix(path.suffix + ".tmp")
+    subprocess.run(
+        [magick, str(path), "-strip", "-quality", JPEG_QUALITY, str(tmp)],
+        check=True,
+        capture_output=True,
+    )
+    tmp.replace(path)
+
+
+def compress_png(path: Path, pngquant: str) -> bool:
+    tmp = path.with_suffix(".pngquant.tmp.png")
+    for quality in (PNGQUANT_QUALITY, "15-55", "10-80"):
+        try:
+            subprocess.run(
+                [
+                    pngquant,
+                    f"--quality={quality}",
+                    "--force",
+                    "--output",
+                    str(tmp),
+                    str(path),
+                ],
+                check=True,
+                capture_output=True,
+            )
+            tmp.replace(path)
+            return True
+        except subprocess.CalledProcessError:
+            if tmp.exists():
+                tmp.unlink()
+    print(f"  WARN: pngquant skip {path.name}", file=sys.stderr)
+    return False
+
+
+def main() -> int:
+    report = Path(__file__).resolve().parents[1]
+    images = report / "images"
+    magick = shutil.which("magick") or shutil.which("convert")
+    pngquant = shutil.which("pngquant")
+    if not magick:
+        print("ERROR: ImageMagick (magick/convert) not found", file=sys.stderr)
+        return 1
+    if not pngquant:
+        print("ERROR: pngquant not found", file=sys.stderr)
+        return 1
+
+    targets = sorted(
+        p for p in images.iterdir() if p.is_file() and is_screenshot(p)
+    )
+    if not targets:
+        print("No screenshots to compress", file=sys.stderr)
+        return 1
+
+    total_before = 0.0
+    total_after = 0.0
+    for path in targets:
+        before = size_kb(path)
+        total_before += before
+        if path.suffix.lower() in {".jpg", ".jpeg"}:
+            compress_jpeg(path, magick)
+        else:
+            compress_png(path, pngquant)
+        after = size_kb(path)
+        total_after += after
+        pct = (1 - after / before) * 100 if before else 0
+        print(f"  {path.name}: {before:.0f} KiB → {after:.0f} KiB (−{pct:.0f}%)")
+
+    saved = (1 - total_after / total_before) * 100 if total_before else 0
+    print(
+        f"OK: {len(targets)} screenshots, "
+        f"{total_before:.0f} KiB → {total_after:.0f} KiB (−{saved:.0f}%)"
+    )
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())