75 lines
2.3 KiB
Python
75 lines
2.3 KiB
Python
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"""
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DOCX-Rendering und PDF-Konvertierung.
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"""
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from __future__ import annotations
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import logging
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import re
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import subprocess
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import tempfile
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from pathlib import Path
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from docx import Document
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from docxtpl import DocxTemplate
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logger = logging.getLogger(__name__)
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PLACEHOLDER_RE = re.compile(r"\{\{\s*([A-Za-z_][A-Za-z0-9_]*)")
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def extract_placeholders(docx_path: Path) -> list[str]:
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"""Liest die Jinja-Platzhalter aus einem DOCX und gibt sie sortiert zurück."""
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doc = Document(str(docx_path))
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found: set[str] = set()
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for para in doc.paragraphs:
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for m in PLACEHOLDER_RE.finditer(para.text):
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found.add(m.group(1))
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for table in doc.tables:
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for row in table.rows:
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for cell in row.cells:
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for para in cell.paragraphs:
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for m in PLACEHOLDER_RE.finditer(para.text):
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found.add(m.group(1))
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return sorted(found)
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def render_docx(template_path: Path, context: dict, out_path: Path) -> Path:
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"""Füllt das DOCX-Template mit Kontext und schreibt das Ergebnis."""
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tpl = DocxTemplate(str(template_path))
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tpl.render(context)
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tpl.save(str(out_path))
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return out_path
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def docx_to_pdf(docx_path: Path, out_dir: Path) -> Path:
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"""Konvertiert DOCX nach PDF mit LibreOffice headless.
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LibreOffice braucht ein eigenes Profilverzeichnis, sonst kollidieren
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parallele Worker.
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"""
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out_dir.mkdir(parents=True, exist_ok=True)
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with tempfile.TemporaryDirectory(prefix="lo-profile-") as profile_dir:
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cmd = [
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"soffice",
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"--headless",
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"--nologo",
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"--norestore",
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"--nolockcheck",
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f"-env:UserInstallation=file://{profile_dir}",
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"--convert-to", "pdf",
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"--outdir", str(out_dir),
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str(docx_path),
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]
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logger.info("LibreOffice convert: %s", " ".join(cmd))
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result = subprocess.run( # noqa: S603
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cmd, capture_output=True, text=True, timeout=120, check=False
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)
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if result.returncode != 0:
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raise RuntimeError(
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f"LibreOffice-Konvertierung fehlgeschlagen: {result.stderr}"
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)
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pdf_path = out_dir / (docx_path.stem + ".pdf")
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if not pdf_path.exists():
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raise FileNotFoundError(f"PDF nicht gefunden: {pdf_path}")
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return pdf_path
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