[UPDATE] рефакторинг: handlers, fontspec, Docker optimization

md2gost/main.py

@@ -7,6 +7,16 @@ from md2gost.parser import Parser
 from md2gost.render import Renderer
 
 
+def run_xelatex(tex_path: Path, output_dir: Path) -> bool:
+    result = subprocess.run(
+        ["xelatex", "-interaction=nonstopmode",
+         "-output-directory", str(output_dir), str(tex_path)],
+        capture_output=True, text=True,
+    )
+    pdf_path = output_dir / tex_path.with_suffix(".pdf").name
+    return pdf_path.exists()
+
+
 def main():
     cli = argparse.ArgumentParser(
         prog="md2gost",
@@ -40,16 +50,21 @@ def main():
 
     if not args.no_pdf:
         pdf_path = args.output / args.input.with_suffix(".pdf").name
-        result = subprocess.run(
-            ["xelatex", "-interaction=nonstopmode", "-output-directory", str(args.output), str(tex_path)],
-            capture_output=True, text=True,
-        )
-        if not pdf_path.exists():
-            print(result.stdout[-2000:], file=sys.stderr)
+        log_path = args.output / "report.log"
+
+        if not run_xelatex(tex_path, args.output):
+            print("ошибка: xelatex не собрал PDF", file=sys.stderr)
+            if log_path.exists():
+                for line in log_path.read_text(errors="replace").splitlines():
+                    if line.startswith("!"):
+                        print(f"  {line}", file=sys.stderr)
             sys.exit(1)
+
+        if not run_xelatex(tex_path, args.output):
+            print("ошибка: xelatex (2-й проход) не собрал PDF", file=sys.stderr)
+            sys.exit(1)
+
         print(f"→ {pdf_path}")
-        if result.returncode != 0:
-            print("  (предупреждения xelatex, PDF собран)", file=sys.stderr)
 
 
 if __name__ == "__main__":