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Install languages

hypha.apply.translate.management.commands.install_languages

Command

Bases: BaseCommand

help class-attribute instance-attribute 

help = "Delete all drafts that haven't been modified in the specified time (in days)"

available_packages class-attribute instance-attribute 

available_packages = get_available_packages()

installed_packages class-attribute instance-attribute 

installed_packages = get_installed_packages()

add_arguments 

add_arguments(parser)
Source code in hypha/apply/translate/management/commands/install_languages.py 
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def add_arguments(self, parser):
    parser.add_argument(
        "languages",
        action="store",
        nargs="*",
        type=self.__validate_language,
        help='Language packages to install in the format of "<from language>_<to language>" in ISO 639 format',
    )

    parser.add_argument(
        "--noinput",
        "--no-input",
        action="store_false",
        dest="interactive",
        help="Do not prompt the user for confirmation",
        required=False,
    )

    parser.add_argument(
        "--all",
        action="store_true",
        help="Install all available language packages",
        required=False,
    )

handle 

handle(*args, **options)
Source code in hypha/apply/translate/management/commands/install_languages.py 
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def handle(self, *args, **options):
    interactive = options["interactive"]
    packages = options["languages"]
    verbosity = options["verbosity"]
    all = options["all"]

    # Require either languages or "--all" to be specified
    if not bool(packages) ^ bool(all):
        raise argparse.ArgumentTypeError("A language selection must be specified")

    if all:
        packages = self.available_packages

    existing_packages = [
        lang for lang in packages if lang in self.installed_packages
    ]
    pending_packages = [
        lang for lang in packages if lang not in self.installed_packages
    ]

    if existing_packages:
        if verbosity > 1:
            self.stdout.write(
                f"The following package{'s are' if len(existing_packages) > 1 else ' is'} already installed:"
            )
            self.__print_package_list(existing_packages)
        elif (
            not pending_packages
        ):  # Only notify the user if no packages will be installed
            self.stdout.write(
                f"The specified package{'s are' if len(existing_packages) > 1 else ' is'} already installed."
            )

    if not pending_packages:
        return

    if pending_packages:
        if verbosity > 1:
            self.stdout.write(
                f"The following package{'s' if len(pending_packages) > 1 else ''} will be installed:"
            )
            self.__print_package_list(pending_packages)
        elif (
            interactive
        ):  # Only log what will be installed if prompting the user to confirm
            self.stdout.write(
                f"{len(pending_packages)} package{'s' if len(pending_packages) > 1 else ''} will be installed."
            )

        if interactive:
            confirm = input(
                "Are you sure you want to do this?\n\nType 'yes' to continue, or 'no' to cancel: "
            )
        else:
            confirm = "yes"

    if confirm == "yes":
        for package in pending_packages:
            argostranslate.package.install_from_path(package.download())

        successful_installs = len(
            argostranslate.package.get_installed_packages()
        ) - len(self.installed_packages)

        success_msg = f"{successful_installs} new package{'s' if successful_installs > 1 else ''} installed"

        if existing_packages:
            success_msg = f"{success_msg}, while {len(existing_packages)} package{'s were' if len(existing_packages) > 1 else ' was'} already installed."
        else:
            success_msg = f"{success_msg}."

        self.stdout.write(success_msg)
    else:
        self.stdout.write("Installation cancelled.")