59 lines
1.9 KiB
Python
59 lines
1.9 KiB
Python
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import os
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import subprocess
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from typing import Any
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from collections.abc import Iterable
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from .logger import log
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# $ lagrit < infile > outfile
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def run_lagrit(lagrit_exe: str, working_directory: str, infile: str = "input.lgi", flags: str = None):
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"""Calls the LaGriT executable.
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Args:
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lagrit_exe (str): Path to the LaGriT executable binary.
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flags (Any[str, Iterable], optional): Optional flags to pass to LaGriT. Defaults to None.
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"""
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# Verify the path to LaGriT exists and is a file
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if not os.path.isfile(lagrit_exe):
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raise FileNotFoundError(
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"Invalid path - LaGriT does not exist at %s" % lagrit_exe
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)
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# Check test directory exists
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if not os.path.isdir(working_directory):
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raise FileNotFoundError("Invalid path - no directory exists: %s" % working_directory)
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# Check the infile exists in the desired working directory
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if not os.path.isabs(infile):
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if not os.path.isfile(os.path.join(working_directory, infile)):
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raise FileNotFoundError("Invalid path - %s does not exist" % (os.path.join(working_directory, infile)))
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# Make sure flags are in a list format
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if isinstance(flags, str):
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flags = flags.split(' ')
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if not isinstance(flags, Iterable):
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flags = []
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stdin = None
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with open(os.path.join(working_directory, infile), 'r') as f:
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stdin = f.read()
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log.info("Running test case at %s" % working_directory)
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log.info(" ".join([lagrit_exe, *flags]))
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# Finally, call LaGriT
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stdout, stderr = subprocess.Popen(
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[lagrit_exe, *flags],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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cwd=working_directory,
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).communicate(stdin.encode('utf-8'))
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#log.info("stdout = " + stdout.decode())
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#log.info("stderr = " + stderr.decode())
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return (stdout.decode(), stderr.decode())
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