pybaker.py

class PyBaker:
    """
    The entry point class, responsible for launching the program

    Public methods:
        main: The main method of the program

    This class starts the program from the command line when it is installed in
    directories that are defined in the $PATH variable. These are places like
    /usr/bin, ~/.local/bin, etc. and can be called from the command line
    regardless of the current working directory. It is basically a "bootstrap"
    file, activating the venv and calling the main program.
    """

    # --------------------------------------------------------------------------
    # Class constants
    # --------------------------------------------------------------------------

    # find path to prj/lib
    P_DIR_PP = f"{Path.home()}/.local/share/pyplate"

    # commands to run
    S_CMD_ACTIVATE = f". {P_DIR_PP}/.venv-pyplate/bin/activate"
    S_CMD_RUN = f"{P_DIR_PP}/src/pybaker.py"
    S_CMD_RUN_ARGS = "{} {}"

    # --------------------------------------------------------------------------
    # Public methods
    # --------------------------------------------------------------------------

    # --------------------------------------------------------------------------
    # The main method of the program
    # --------------------------------------------------------------------------
    def main(self):
        """
        The main method of the program

        This method is the main entry point for the program, initializing the
        program, and performing its steps.

        It then calls the real main module, located in the install dir.
        """

        # ----------------------------------------------------------------------

        # save project path to return after venv activate
        start_dir = Path.cwd()

        # get args
        args = sys.argv

        # remove our path
        args = args[1:]

        # quote any args with spaces
        args = [f'"{item}"' if " " in item else item for item in args]

        # put args back together with spaces
        args = " ".join(args)

        # def cmd line - no args
        src_run = self.S_CMD_RUN

        # add args if present
        if len(args) > 0:
            src_run = self.S_CMD_RUN_ARGS.format(self.S_CMD_RUN, args)

        # ----------------------------------------------------------------------

        # build cmd
        cmd = (
            # cd to inst
            f"cd {self.P_DIR_PP};"
            # activate venv
            f"{self.S_CMD_ACTIVATE};"
            # get back to start dir (where we were called)
            f"cd {start_dir};"
            # call src w/ args
            f"{src_run}"
        )

        # run cmd
        try:
            subprocess.run(cmd, shell=True, check=True)
        except subprocess.CalledProcessError:
            print("error")