71 lines
2.5 KiB
Python
71 lines
2.5 KiB
Python
import subprocess
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from pathlib import Path
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from backend.managers.debug_logger import get_logger
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logger = get_logger(__name__)
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# Maximum time (seconds) a subprocess is allowed to run before being killed.
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RUN_TIMEOUT = 30
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class ExecutionEngine:
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"""Runs files from the editor in a subprocess and returns the output.
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Currently supports Python (.py) and LaTeX (.tex) files.
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Returns a dict with keys: stdout, stderr, rc (return code).
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"""
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def __init__(self):
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pass
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def run_code(self, active_file: Path) -> dict:
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"""Execute the given file and return its output.
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Args:
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active_file: Absolute path to the file that should be run.
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Returns:
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{"stdout": str, "stderr": str, "rc": int}
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rc == 0 means success, anything else is an error.
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"""
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suffix = active_file.suffix
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current_dir = active_file.parent.resolve()
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# Build the shell command depending on file type
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if suffix == ".py":
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cmd = ["py", active_file.name]
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elif suffix == ".tex":
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# pdflatex in non-interactive mode so it never waits for input
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cmd = [
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"pdflatex",
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"-interaction=nonstopmode",
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f"-output-directory={current_dir}",
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active_file.name,
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]
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else:
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return {"stdout": "", "stderr": f"Unsupported file type: {suffix}", "rc": 1}
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logger.info("Running file %s with suffix %s", active_file.name, suffix)
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try:
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proc = subprocess.run(
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cmd,
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cwd=current_dir, # run inside the file's own directory
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capture_output=True,
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text=True,
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timeout=RUN_TIMEOUT,
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)
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logger.info("File ran successfully.")
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return {"stdout": proc.stdout, "stderr": proc.stderr, "rc": proc.returncode}
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except subprocess.TimeoutExpired:
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logger.warning("Time out afte %s s", RUN_TIMEOUT)
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return {"stdout": "", "stderr": f"Timed out after {RUN_TIMEOUT}s", "rc": -1}
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except FileNotFoundError as e:
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# Raised when the interpreter/compiler binary is not found on PATH
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logger.warning("Interpreter/compiler binary is not found on PATH: %s", e)
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return {"stdout": "", "stderr": str(e), "rc": -1}
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except Exception as e:
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logger.exception("Error while running %s: %s", active_file.name, e)
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return {"stdout": "", "stderr": str(e), "rc": -1}
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