Jon Chery
485d105bcd
New scripts/inline_images.py (stdlib only: base64, re, mimetypes) — base64-embeds all relative-path <img src='assets/...'> images into the rendered HTML so it's redistributable without the assets/ folder. MIME-sniffs by extension (.png->image/png, .svg->image/svg+xml, etc). render_slides.sh Step 3 invokes it after the MARP HTML render, before staging. Verified: 2 images inlined, 0 file-path refs remaining. ---ci--- project: acdl phase: 3 milestone: v1.23 status: execute phase_role: execution ---/ci---
72 lines
2.0 KiB
Python
72 lines
2.0 KiB
Python
#!/usr/bin/env python3
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"""scripts/inline_images.py — base64-embed all relative-path images in an
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HTML file so it becomes self-contained (redistributable without the
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assets/ folder).
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Usage: python scripts/inline_images.py <html-path>
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Stdlib only (base64, re, mimetypes, sys, pathlib).
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"""
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from __future__ import annotations
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import base64
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import mimetypes
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import re
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import sys
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from pathlib import Path
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IMG_SRC_RE = re.compile(
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r'(<img\b[^>]*\bsrc=")(assets/[^"]+)("[^>]*>)',
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re.IGNORECASE,
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)
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def _mime_for(path: Path) -> str:
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ext = path.suffix.lower()
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if ext == ".svg":
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return "image/svg+xml"
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guessed, _ = mimetypes.guess_type(str(path))
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return guessed or "application/octet-stream"
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def inline(html_path: Path) -> int:
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html = html_path.read_text(encoding="utf-8")
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repo_root = html_path.parent.parent.parent
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count = 0
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def replacer(match: re.Match[str]) -> str:
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nonlocal count
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prefix, rel_src, suffix = match.group(1), match.group(2), match.group(3)
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img_path = html_path.parent / rel_src
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if not img_path.exists():
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print(f" WARNING: image not found: {rel_src}", file=sys.stderr)
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return match.group(0)
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mime = _mime_for(img_path)
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data = base64.b64encode(img_path.read_bytes()).decode("ascii")
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count += 1
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return f'{prefix}data:{mime};base64,{data}{suffix}'
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new_html = IMG_SRC_RE.sub(replacer, html)
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if count > 0:
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html_path.write_text(new_html, encoding="utf-8")
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return count
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def main() -> int:
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if len(sys.argv) != 2:
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print("Usage: python scripts/inline_images.py <html-path>", file=sys.stderr)
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return 1
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html_path = Path(sys.argv[1])
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if not html_path.exists():
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print(f"ERROR: {html_path} not found", file=sys.stderr)
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return 1
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count = inline(html_path)
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print(f"Inlined {count} image(s) into {html_path}", file=sys.stderr)
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return 0
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if __name__ == "__main__":
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raise SystemExit(main()) |