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#!/usr/bin/env python3
"""Convert HTML blocks in .gmi files to gemtext using html2gmi."""
import html
import subprocess
import sys
from pathlib import Path
START_MARKER = "<!-- START_GEMINI_CONTENT -->"
END_MARKER = "<!-- END_GEMINI_CONTENT -->"
HTML2GMI = Path.home() / "go/bin/html2gmi"
def convert_file(path: Path) -> None:
content = path.read_text()
result = []
pos = 0
while True:
start = content.find(START_MARKER, pos)
if start == -1:
result.append(content[pos:])
break
end = content.find(END_MARKER, start)
if end == -1:
result.append(content[pos:])
break
# Add content before the marker
result.append(content[pos:start])
# Convert HTML block to gemtext
html_content = content[start + len(START_MARKER):end]
converted = subprocess.run(
[HTML2GMI],
input=html_content,
capture_output=True,
text=True,
)
result.append(converted.stdout)
pos = end + len(END_MARKER)
# Unescape HTML entities in the entire file
path.write_text(html.unescape("".join(result)))
def main() -> None:
if len(sys.argv) < 2:
print(f"Usage: {sys.argv[0]} <directory>", file=sys.stderr)
sys.exit(1)
directory = Path(sys.argv[1])
for path in directory.rglob("*.gmi"):
convert_file(path)
if __name__ == "__main__":
main()
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