ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

book-hu/convert_svg_to_png.py

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+#! /usr/bin/env python3
+"""Convert all SVG images to PNG for better e-book reader compatibility"""
+
+import os
+import re
+
+book_dir = os.path.dirname(os.path.abspath(__file__))
+img_dir = os.path.join(book_dir, "images")
+
+# Convert SVG files to PNG
+import cairosvg
+
+converted = 0
+for fname in sorted(os.listdir(img_dir)):
+    if not fname.lower().endswith('.svg'):
+        continue
+
+    svg_path = os.path.join(img_dir, fname)
+    png_name = fname.replace('.svg', '.png')
+    png_path = os.path.join(img_dir, png_name)
+
+    with open(svg_path, 'rb') as f:
+        svg_data = f.read()
+
+    # Convert SVG to PNG
+    cairosvg.svg2png(bytestring=svg_data, write_to=png_path, output_width=1200)
+    converted += 1
+    if converted % 20 == 0:
+        print(f"  {converted} SVG konvertálva...")
+
+print(f"✅ {converted} SVG → PNG konvertálva")
+
+# Now update all chapter files to use .png instead of .svg
+chapters = [
+    "introduction.md", "chapter1.md", "chapter2.md", "chapter3.md",
+    "chapter4.md", "chapter5.md", "chapter6.md", "chapter7.md",
+    "chapter8.md", "chapter9.md", "chapter10.md", "afterword.md",
+    "reference-answers.md"
+]
+
+total_fixes = 0
+for fname in chapters:
+    fpath = os.path.join(book_dir, fname)
+    if not os.path.exists(fpath):
+        continue
+
+    with open(fpath, 'r', encoding='utf-8') as f:
+        content = f.read()
+
+    # Replace image references: images/fig*.svg → images/fig*.png
+    new_content = re.sub(r'(images/[a-zA-Z0-9_-]+)\.svg', r'\1.png', content)
+
+    if new_content != content:
+        fixes = len(re.findall(r'\.png', new_content)) - len(re.findall(r'\.png', content))
+        total_fixes += fixes
+        with open(fpath, 'w', encoding='utf-8') as f:
+            f.write(new_content)
+        print(f"  {fname}: {fixes} SVG hivatkozás → PNG")
+
+print(f"\n✅ Összesen {total_fixes} hivatkozás frissítve")