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fengjun
2026-04-14 16:46:35 +08:00
parent 380b1623d6
commit 269a0b9699
10 changed files with 81 additions and 547 deletions
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9
assets/js/script.js
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@@ -97,6 +97,7 @@
// HERO SLIDER
if (typeof Swiper === "function" && jQuery(".swiper-container").length) {
var menu = [];
jQuery('.swiper-slide').each( function(index){
menu.push( jQuery(this).find('.slide-inner').attr("data-text") );
@@ -152,6 +153,7 @@
};
var swiper = new Swiper(".swiper-container", swiperOptions);
}
// DATA BACKGROUND IMAGE
var sliderBgSetting = $(".slide-bg-image");
@@ -171,7 +173,9 @@
$('.preloader').delay(100).fadeOut(500, function() {
//active wow
if (wow) {
wow.init();
}
});
@@ -182,13 +186,16 @@
/*------------------------------------------
= WOW ANIMATION SETTING
-------------------------------------------*/
var wow = new WOW({
var wow = null;
if (typeof WOW === "function") {
wow = new WOW({
boxClass: 'wow', // default
animateClass: 'animated', // default
offset: 0, // default
mobile: true, // default
live: true // default
});
}
/*------------------------------------------

1
header.html
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@@ -203,6 +203,5 @@
}//微信公众号
});
</script>
<script src="assets/js/script.js"></script>
</body>
</html>

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scripts/__init__.py
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scripts/__pycache__/optimize_assets.cpython-314.pyc
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scripts/optimize_assets.py
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#!/usr/bin/env python3
from __future__ import annotations
import argparse
import re
import shutil
import subprocess
from collections import Counter
from dataclasses import dataclass
from pathlib import Path
ROOT = Path(__file__).resolve().parent.parent
ASSETS_DIR = ROOT / "assets"
IMAGES_DIR = ASSETS_DIR / "images"
BACKUP_DIR = ROOT / "assets_backup"
TEXT_EXTENSIONS = {".html", ".css", ".js"}
SOURCE_EXTENSIONS = {".png", ".jpg", ".jpeg", ".gif"}
MANAGED_IMAGE_EXTENSIONS = SOURCE_EXTENSIONS | {".webp"}
MAX_FILE_SIZE = 300_000
MAX_DIMENSION = 2560
SMALL_FILE_LIMIT = 150 * 1024
SMALL_MIN_SAVINGS = 8 * 1024
LARGE_MIN_RATIO = 0.05
@dataclass(frozen=True)
class ImageInfo:
width: int
height: int
colors: int
def run(cmd: list[str], capture: bool = False) -> str:
result = subprocess.run(
cmd,
check=True,
text=True,
capture_output=capture,
)
return result.stdout.strip() if capture else ""
def should_keep_conversion(source_size: int, candidate_size: int) -> bool:
savings = source_size - candidate_size
if savings <= 0:
return False
if source_size < SMALL_FILE_LIMIT:
return savings >= SMALL_MIN_SAVINGS
return (savings / source_size) >= LARGE_MIN_RATIO
def classify_large_image(source_size: int, width: int, height: int) -> bool:
return source_size > MAX_FILE_SIZE or max(width, height) > MAX_DIMENSION
def image_info(path: Path) -> ImageInfo:
output = run(
["magick", "identify", "-ping", "-format", "%w %h %k", str(path)],
capture=True,
)
width_text, height_text, colors_text = output.split()
return ImageInfo(int(width_text), int(height_text), int(colors_text))
def text_files() -> list[Path]:
return sorted(
path
for path in ROOT.rglob("*")
if path.is_file()
and path.suffix.lower() in TEXT_EXTENSIONS
and "assets_backup" not in path.parts
and ".git" not in path.parts
and "docs" not in path.parts
and "tests" not in path.parts
)
def source_images() -> list[Path]:
return sorted(
path
for path in IMAGES_DIR.rglob("*")
if path.is_file() and path.suffix.lower() in SOURCE_EXTENSIONS and not path.name.startswith("._")
)
def colliding_stems(paths: list[Path]) -> set[str]:
counts = Counter(path.with_suffix("").relative_to(ROOT).as_posix() for path in paths)
return {stem for stem, count in counts.items() if count > 1}
def build_webp_path(source: Path, duplicate_stems: set[str]) -> Path:
stem_key = source.with_suffix("").as_posix()
if not source.is_absolute():
stem_key = source.with_suffix("").as_posix()
else:
stem_key = source.with_suffix("").relative_to(ROOT).as_posix()
if stem_key in duplicate_stems:
return source.with_name(f"{source.name}.webp")
return source.with_suffix(".webp")
def managed_webps() -> list[Path]:
return sorted(
path
for path in IMAGES_DIR.rglob("*.webp")
if path.is_file() and not path.name.startswith("._")
)
def render_candidate(source: Path, operations: list[str], suffix: str) -> Path:
target = source.with_name(f"{source.stem}.{suffix}{source.suffix}")
run(["magick", str(source), *operations, str(target)])
return target
def render_webp_candidate(source: Path, operations: list[str], suffix: str) -> Path:
target = source.with_name(f"{source.stem}.{suffix}.webp")
run(["magick", str(source), *operations, str(target)])
return target
def choose_smaller_original(source: Path, info: ImageInfo) -> tuple[int, int]:
original_size = source.stat().st_size
extension = source.suffix.lower()
candidates: list[Path] = []
try:
if extension in {".jpg", ".jpeg"}:
jpeg_profiles = [
["-strip", "-sampling-factor", "4:2:0", "-quality", "86", "-interlace", "Plane"],
]
if classify_large_image(original_size, info.width, info.height):
jpeg_profiles.extend(
[
["-strip", "-sampling-factor", "4:2:0", "-quality", "82", "-interlace", "Plane"],
["-strip", "-sampling-factor", "4:2:0", "-quality", "78", "-interlace", "Plane"],
]
)
if max(info.width, info.height) > MAX_DIMENSION:
jpeg_profiles.extend(
[
[
"-strip",
"-resize",
f"{MAX_DIMENSION}x{MAX_DIMENSION}>",
"-sampling-factor",
"4:2:0",
"-quality",
"84",
"-interlace",
"Plane",
],
[
"-strip",
"-resize",
f"{MAX_DIMENSION}x{MAX_DIMENSION}>",
"-sampling-factor",
"4:2:0",
"-quality",
"80",
"-interlace",
"Plane",
],
]
)
for index, profile in enumerate(jpeg_profiles):
candidates.append(render_candidate(source, profile, f"jpg-opt-{index}"))
elif extension == ".png":
candidates.append(
render_candidate(
source,
["-strip", "-define", "png:compression-level=9", "-define", "png:compression-filter=5"],
"png-opt",
)
)
elif extension == ".gif":
candidates.append(render_candidate(source, ["-strip"], "gif-opt"))
best = min([source, *candidates], key=lambda candidate: candidate.stat().st_size)
best_size = best.stat().st_size
if best != source:
best.replace(source)
return original_size, best_size
finally:
for candidate in candidates:
if candidate.exists():
candidate.unlink()
def choose_webp(source: Path, info: ImageInfo, target_path: Path) -> tuple[bool, int]:
source_size = source.stat().st_size
extension = source.suffix.lower()
candidates: list[Path] = []
try:
if extension in {".jpg", ".jpeg"}:
profiles = [
["-strip", "-quality", "84", "-define", "webp:method=6"],
["-strip", "-quality", "80", "-define", "webp:method=6"],
]
if classify_large_image(source_size, info.width, info.height):
profiles.append(["-strip", "-quality", "76", "-define", "webp:method=6"])
if max(info.width, info.height) > MAX_DIMENSION:
profiles.extend(
[
["-strip", "-resize", f"{MAX_DIMENSION}x{MAX_DIMENSION}>", "-quality", "82", "-define", "webp:method=6"],
["-strip", "-resize", f"{MAX_DIMENSION}x{MAX_DIMENSION}>", "-quality", "78", "-define", "webp:method=6"],
]
)
elif extension == ".png":
if info.colors <= 256 and source_size < SMALL_FILE_LIMIT:
profiles = [
["-strip", "-define", "webp:lossless=true", "-define", "webp:method=6"],
]
else:
profiles = [
["-strip", "-quality", "92", "-define", "webp:alpha-quality=95", "-define", "webp:method=6"],
["-strip", "-quality", "88", "-define", "webp:alpha-quality=90", "-define", "webp:method=6"],
]
if max(info.width, info.height) > MAX_DIMENSION:
profiles.extend(
[
[
"-strip",
"-resize",
f"{MAX_DIMENSION}x{MAX_DIMENSION}>",
"-quality",
"90",
"-define",
"webp:alpha-quality=92",
"-define",
"webp:method=6",
],
[
"-strip",
"-resize",
f"{MAX_DIMENSION}x{MAX_DIMENSION}>",
"-quality",
"86",
"-define",
"webp:alpha-quality=88",
"-define",
"webp:method=6",
],
]
)
else:
profiles = [["-strip", "-define", "webp:lossless=true", "-define", "webp:method=6"]]
for index, profile in enumerate(profiles):
candidates.append(render_webp_candidate(source, profile, f"webp-opt-{index}"))
best = min(candidates, key=lambda candidate: candidate.stat().st_size)
best_size = best.stat().st_size
if should_keep_conversion(source_size, best_size):
best.replace(target_path)
accepted = True
else:
if target_path.exists():
target_path.unlink()
accepted = False
return accepted, best_size
finally:
for candidate in candidates:
if candidate.exists():
candidate.unlink()
def build_replacements(accepted_sources: list[Path], duplicate_stems: set[str]) -> dict[str, str]:
replacements: dict[str, str] = {}
for source in accepted_sources:
relative = source.relative_to(ROOT).as_posix()
target = build_webp_path(source, duplicate_stems).relative_to(ROOT).as_posix()
replacements[relative] = target
if relative.startswith("assets/images/"):
replacements[relative.replace("assets/images/", "../images/", 1)] = target.replace(
"assets/images/", "../images/", 1
)
replacements[relative.replace("assets/", "", 1)] = target.replace("assets/", "", 1)
return replacements
def referenced_asset_paths() -> set[str]:
references: set[str] = set()
pattern = re.compile(r"(assets/images|../images|images)/[^\"')\s>]+\.(?:png|jpg|jpeg|gif|webp|svg|ico)", re.IGNORECASE)
for path in text_files():
content = path.read_text(encoding="utf-8")
for match in pattern.finditer(content):
ref = match.group(0)
candidates = [ROOT / ref, path.parent / ref]
for candidate in candidates:
if candidate.exists() and candidate.is_file():
references.add(candidate.resolve().relative_to(ROOT).as_posix())
break
return references
def should_prune_original(source: Path, referenced_paths: set[str], accepted_webp_paths: set[str]) -> bool:
source_key = source.as_posix() if not source.is_absolute() else source.relative_to(ROOT).as_posix()
if source_key in referenced_paths:
return False
return any(
webp_key in accepted_webp_paths
for webp_key in {
source.with_suffix(".webp").as_posix() if not source.is_absolute() else source.with_suffix(".webp").relative_to(ROOT).as_posix(),
source.with_name(f"{source.name}.webp").as_posix() if not source.is_absolute() else source.with_name(f"{source.name}.webp").relative_to(ROOT).as_posix(),
}
)
def update_references(accepted_sources: list[Path], duplicate_stems: set[str]) -> int:
replacements = build_replacements(accepted_sources, duplicate_stems)
if not replacements:
return 0
pattern = re.compile("|".join(sorted((re.escape(item) for item in replacements), key=len, reverse=True)))
changed = 0
for path in text_files():
original = path.read_text(encoding="utf-8")
updated = pattern.sub(lambda match: replacements[match.group(0)], original)
if updated != original:
path.write_text(updated, encoding="utf-8")
changed += 1
return changed
def prune_replaced_originals(images: list[Path], duplicate_stems: set[str]) -> int:
references = referenced_asset_paths()
accepted_webp_paths = {
build_webp_path(source, duplicate_stems).relative_to(ROOT).as_posix()
for source in images
if build_webp_path(source, duplicate_stems).exists()
}
pruned = 0
for source in images:
if should_prune_original(source, references, accepted_webp_paths):
source.unlink()
pruned += 1
return pruned
def check_rewritten_webps() -> int:
missing: list[str] = []
pattern = re.compile(r"(assets/images|../images|images)/[^\"')\s>]+\.webp", re.IGNORECASE)
for path in text_files():
content = path.read_text(encoding="utf-8")
for match in pattern.finditer(content):
ref = match.group(0)
candidates = [
ROOT / ref,
path.parent / ref,
]
if not any(candidate.exists() and candidate.is_file() for candidate in candidates):
missing.append(f"{path.relative_to(ROOT)}: {ref}")
if missing:
print("\n".join(missing))
return 1
print("No missing rewritten webp references.")
return 0
def ensure_backup_copy() -> None:
if BACKUP_DIR.exists():
shutil.rmtree(BACKUP_DIR)
BACKUP_DIR.mkdir(parents=True, exist_ok=True)
for child in ASSETS_DIR.iterdir():
destination = BACKUP_DIR / child.name
if child.is_dir():
shutil.copytree(child, destination)
else:
shutil.copy2(child, destination)
def optimize_assets() -> int:
if shutil.which("magick") is None:
raise SystemExit("ImageMagick `magick` 未安装，无法继续处理图片。")
ensure_backup_copy()
images = source_images()
duplicate_stems = colliding_stems(images)
total_before = 0
total_after_original = 0
accepted_sources: list[Path] = []
accepted_count = 0
skipped_count = 0
for source in images:
info = image_info(source)
before_size, after_original_size = choose_smaller_original(source, info)
total_before += before_size
total_after_original += after_original_size
accepted, _ = choose_webp(source, image_info(source), build_webp_path(source, duplicate_stems))
if accepted:
accepted_sources.append(source)
accepted_count += 1
else:
skipped_count += 1
changed_files = update_references(accepted_sources, duplicate_stems)
print(f"Backup refreshed at: {BACKUP_DIR.relative_to(ROOT)}")
print(f"Raster size before optimization: {total_before / 1024 / 1024:.2f} MB")
print(f"Raster size after original optimization: {total_after_original / 1024 / 1024:.2f} MB")
print(f"Accepted webp conversions: {accepted_count}")
print(f"Rejected webp conversions: {skipped_count}")
print(f"Updated text files: {changed_files}")
return 0
def main() -> int:
parser = argparse.ArgumentParser()
parser.add_argument("--check", action="store_true", help="validate rewritten webp references")
parser.add_argument("--prune-replaced", action="store_true", help="delete originals already replaced by accepted webp files")
args = parser.parse_args()
if args.check:
return check_rewritten_webps()
if args.prune_replaced:
images = source_images()
duplicate_stems = colliding_stems(images)
pruned = prune_replaced_originals(images, duplicate_stems)
print(f"Pruned replaced originals: {pruned}")
return 0
return optimize_assets()
if __name__ == "__main__":
raise SystemExit(main())

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tests/__init__.py
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tests/__pycache__/test_optimize_assets.cpython-314.pyc
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tests/test_optimize_assets.py
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import unittest
from pathlib import Path
from scripts.optimize_assets import (
build_webp_path,
classify_large_image,
should_keep_conversion,
should_prune_original,
)
class OptimizeAssetsRulesTest(unittest.TestCase):
def test_rejects_webp_when_not_smaller_than_source(self) -> None:
self.assertFalse(should_keep_conversion(120_000, 123_000))
def test_accepts_materially_smaller_webp_for_large_file(self) -> None:
self.assertTrue(should_keep_conversion(500_000, 430_000))
def test_rejects_small_gain_below_threshold(self) -> None:
self.assertFalse(should_keep_conversion(200_000, 191_000))
def test_flags_large_by_filesize(self) -> None:
self.assertTrue(classify_large_image(301_000, 1200, 900))
def test_flags_large_by_dimensions(self) -> None:
self.assertTrue(classify_large_image(120_000, 3000, 1800))
def test_uses_extension_qualified_webp_name_when_stem_collides(self) -> None:
target = build_webp_path(Path("assets/images/sj.jpg"), {"assets/images/sj"})
self.assertEqual(target.as_posix(), "assets/images/sj.jpg.webp")
def test_prunes_original_when_webp_exists_and_original_is_unreferenced(self) -> None:
self.assertTrue(
should_prune_original(
Path("assets/images/banner.jpg"),
{"index.html", "assets/images/banner.webp"},
{"assets/images/banner.webp"},
)
)
if __name__ == "__main__":
unittest.main()