`jumon` is a small framework for sub commands.

The jumon is a small framework for implementing the sub command.
You can be implemented sub commands,
as the hierarchial structure of the sub modules in the packages.
It finds importable sub module from the arguments passed,
Runs main function in the importable sub module with arguments.

You can be displayed the hierarchial structure of the sub commands
with tree command etc, because it be implementing sub commands as
the hierarchial structure of the sub module.
It will be easy to see where sub command has been implemented.

Please consider to use `jumon`, if you are trying to implement the
sub commands.


Installing
==========
Use ``setup.py`` in the source code root directory::

    $ python setup.py install

by pip (from PyPI)
-------------------
::

    $ pip install jumon

How to use
============

This is a description of how to use the jumon.
Let create a package called "testcmd",
and sub package called "testcmd.command".

::

    $ mkdir testcmd
    $ touch testcmd/__init__.py
    $ mkdir testcmd/command

Let implementing sub commands in "testcmd.command" subordinate.

First, create top level command.::

    $ touch testcmd/command/__init__.py


testcmd/command/__init__.py::

    import jumon

    def main():
        jumon.entry(__name__)

Under this package is the search range of sub commands.

Next, create sub command.::

    $ touch testcmd/command/aaa.py

testcmd/command/aaa.py::

    def main(argv):
        print 'OK'
        return 0


This commamd is printed string "OK", and end with exit code 0.

You can be implemented sub command of sub command.::

    $ mkdir testcmd/command/bbb
    $ touch testcmd/command/bbb/__init__.py
    $ touch testcmd/command/bbb/ccc.py


testcmd/command/bbb/__init__.py::

    def main(argv):
        print 'bbb'
        return 1

testcmd/command/bbb/ccc.py::

    def main(argv):
        print 'ccc'
        return 2

I implemented sub commands, called "bbb" and "bbb ccc".
This commamd "bbb" is printed string "bbb", and end with exit code 1.
This commamd "bbb ccc" is printed string "ccc", and end with exit code 2.

Next, install "testcmd".::

    $ cp testcmd $SITE_PACKAGES -R


Last, create command.::

    $ touch test.py

test.py::

    #! /usr/bin/env python
    import testcmd.command

    def main():
        testcmd.command.main()

    if __name__ == '__main__':
        main()

Add permission::

    $ chmod 755 test.py

Run, displayed usage.::

    $ ./test.py
    Usage: test.py [options]

    test.py: error: Command Not Found:

Run sub command "aaa".::

    $ ./test.py aaa
    OK
    $ echo $?
    0

Run sub command "bbb".::

    $ ./test.py bbb
    bbb
    $ echo $?
    1

Run sub command "bbb ccc".::

    $ ./test.py bbb ccc
    ccc
    $ echo $?
    2

Do you want to created command with setup.py?
-------------------------------------------------

setup.py::

    #-*- coding: utf-8 -*-
    from setuptools import setup, find_packages
    setup(
        name='testcmd',
        version='1',
        license='BSD',
        author='TakesxiSximada',
        author_email='sximada+jumon@gmail.com',
        packages=find_packages(),
        entry_points = """\
        [console_scripts]
        testcmd = testcmd.command:main
        """
    )


This is important::

        entry_points = """\
        [console_scripts]
        testcmd = testcmd.command:main
        """

Do you want to transparenting the undefined options?
---------------------------------------------------------

You can use *jumon.TransparentOptionParser()* class.

::

    >>> import jumon
    >>> parser = jumon.TransparentOptionParser()
    >>> opts, args = parser.parse_args(['-f', '-n', '1'])
    >>> args
    ['-f', '-n', '1']


Requirements
============

* Python 2.7 or later

License
=======

Apache License 2.0