Source code for ffcx.main

# Copyright (C) 2004-2020 Anders Logg, Garth N. Wells and Michal Habera
# This file is part of FFCx.(
# SPDX-License-Identifier:    LGPL-3.0-or-later
"""Command-line interface to FFCx.

Parse command-line arguments and generate code from input UFL form files.

import argparse
import cProfile
import logging
import pathlib
import re
import string

import ufl

from ffcx import __version__ as FFCX_VERSION
from ffcx import compiler, formatting
from ffcx.parameters import FFCX_DEFAULT_PARAMETERS, get_parameters

logger = logging.getLogger("ffcx")

parser = argparse.ArgumentParser(
    description="FEniCS Form Compiler (FFCx,")
    "--version", action='version', version=f"%(prog)s (version {FFCX_VERSION})")
parser.add_argument("-o", "--output-directory", type=str, default=".", help="output directory")
parser.add_argument("--visualise", action="store_true", help="visualise the IR graph")
parser.add_argument("-p", "--profile", action='store_true', help="enable profiling")

# Add all parameters from FFCx parameter system
for param_name, (param_val, param_desc) in FFCX_DEFAULT_PARAMETERS.items():
                        type=type(param_val), help=f"{param_desc} (default={param_val})")

parser.add_argument("ufl_file", nargs='+', help="UFL file(s) to be compiled")

[docs]def main(args=None): xargs = parser.parse_args(args) # Parse all other parameters priority_parameters = {k: v for k, v in xargs.__dict__.items() if v is not None} parameters = get_parameters(priority_parameters) # Call parser and compiler for each file for filename in xargs.ufl_file: file = pathlib.Path(filename) # Remove weird characters (file system allows more than the C # preprocessor) prefix = file.stem prefix = re.subn("[^{}]".format(string.ascii_letters + string.digits + "_"), "!", prefix)[0] prefix = re.subn("!+", "_", prefix)[0] # Turn on profiling if xargs.profile: pr = cProfile.Profile() pr.enable() # Load UFL file ufd = ufl.algorithms.load_ufl_file(filename) # Generate code code_h, code_c = compiler.compile_ufl_objects( ufd.forms + ufd.expressions + ufd.elements, ufd.object_names, prefix=prefix, parameters=parameters, visualise=xargs.visualise) # Write to file formatting.write_code(code_h, code_c, prefix, xargs.output_directory) # Turn off profiling and write status to file if xargs.profile: pr.disable() pfn = f"ffcx_{prefix}.profile" pr.dump_stats(pfn) return 0