Source code for latex_to_myst.cli

import shutil
import argparse
import subprocess
from pathlib import Path
from latex_to_myst.main import main


def main():
    """Main CLI Entry Point to Latex-to-Myst

    This entry point is invoked in the command line as a console
    script and can be invoked like::

        $ latex2myst my_latex_file.tex my_new_markdown.md

    You can see the complete set of options by typing::

        $ latex2myst -h
    """
    parser = argparse.ArgumentParser(description="Convert LaTeX to MyST")
    parser.add_argument("file_in", metavar="input", type=str, help="Input LaTeX file")
    parser.add_argument(
        "file_out", metavar="output", type=str, help="Output Markdown file"
    )
    # parser.add_argument(
    #     "-l",
    #     "--log",
    #     default=None,
    #     type=str,
    #     help="Logging level, default to None which turns off logging.",
    # )
    parser.add_argument(
        "-hl",
        "--highlight",
        action="store_true",
        default=True,
        help="Whether to enable syntax highlighting",
    )
    args = parser.parse_args()

    if not shutil.which("pandoc"):
        raise ModuleNotFoundError("Pandoc >= 2.11 required.")

    fi = Path(args.file_in)
    fo = Path(args.file_out)
    CURR_PATH = Path(__file__).parent.resolve()

    assert fi.exists()
    assert fi.suffix == ".tex" or fi.suffix == ""
    assert fo.suffix == ".md" or fo.suffix == ""

    cmd = [
        "pandoc",
        str(CURR_PATH / "macros.tex"),
        str(fi),
        "-o",
        str(fo),
        "--filter",
        str(CURR_PATH / "main.py"),
        "-t",
        "markdown+latex_macros",
        "--markdown-headings=atx",
        "--highlight-style" if args.highlight else "",
        str(CURR_PATH / "pygments.theme") if args.highlight else "",
        "--standalone",
    ]
    subprocess.run(
        cmd,
        check=True,
    )


if __name__ == "__main__":
    main()