improve TinyTeX call

rendercv/rendering.py

@@ -428,23 +428,31 @@ def run_latex(latex_file_path: str) -> str:
             " RenderCV again."
         )
 
-    try:
-        subprocess.run(
+    # Run TinyTeX:
+    with subprocess.Popen(
         [
             executable,
             f"{latex_file_name}",
         ],
         cwd=os.path.dirname(latex_file_path),
-            check=True,
-            stdout=subprocess.DEVNULL,  # suppress latexmk output
-            timeout=45,
-        )
-    except subprocess.CalledProcessError or subprocess.TimeoutExpired as e:
+        stdout=subprocess.PIPE,
+        stdin=subprocess.DEVNULL,  # don't allow TinyTeX to ask for user input
+        text=True,
+    ) as latex_process:
+        output, error = latex_process.communicate()
+        output.split("\n")
+
+        if latex_process.returncode != 0:
+            # Find the error line:
+            for line in output.split("\n"):
+                if line.startswith("! "):
+                    error_line = line.replace("! ", "")
+                    break
+
             raise RuntimeError(
-            "Running TinyTeX has failed with the following error:\n\ncommand"
-            f' "{e.cmd}" return with error (code {e.returncode}): {e.output}\n\nIf'
-            " you can't find the problem, please try to re-install RenderCV, or open"
-            " an issue on GitHub."
+                "Running TinyTeX has failed with the following error:\n\n"
+                f"{error_line}\n\nIf you can't solve the problem, please try to"
+                " re-install RenderCV, or open an issue on GitHub."
             )
 
     # check if the PDF file is generated: