SourceCode generation helper for Flutter.

generate.py

# pip install click
import click
import os


@click.command()
@click.option('--watch', is_flag=True, help='Watch file changes during build.')
@click.option('--restart', is_flag=True, help='Delete conflicting outputs.')
def generate(**kwargs):
    '''Run build_runner source code generation'''

    watch = kwargs['watch']
    restart = kwargs['restart']

    command = 'flutter packages pub run build_runner {buildType} {withRestart}'
    buildType = 'watch' if watch else 'build'
    withRestart = '--delete-conflicting-outputs' if restart else ''

    executable = command.format(buildType=buildType, withRestart=withRestart)
    os.system(executable)


if __name__ == '__main__':
    generate()