modify_interfaces.rst

:mod:`modify_interfaces` --- An interface for enabling/disabling applications

.. index::
   single: modify
   single: interfaces

.. module:: modify_interfaces
   :synopsis: A simple module to modify the interfaces module in order to enable/disable applications.

.. sectionauthor:: Risto Stevcev <risto1@gmail.com>.

The :mod:`modify_interfaces` module is used as a simple interface for modifying the :mod:`interfaces` module so that you don't have the edit the interfaces.py file manually.

Implementation

Here is the source code for the :mod:`modify_interfaces` module:

import os

_ROOT = os.path.abspath(os.path.dirname(__file__))
_INTERFACES = 'interfaces.py'


def modify(application_name, enable=True):
    new_interfaces = []
    with open(os.path.join(_ROOT, _INTERFACES), 'r') as f:
        for line in f:
            if application_name in line and enable:
                new_interfaces.append(line.replace('#', ''))
            elif application_name in line and not enable:
                new_interfaces.append("#" + line)
            else:
                new_interfaces.append(line)
    with open(os.path.join(_ROOT, _INTERFACES), 'w') as f:
        for line in new_interfaces:
            f.write(line)

def read():
    with open(os.path.join(_ROOT, _INTERFACES), 'r') as f:
        print(f.read())

def enable(application_name):
    modify(application_name, enable=True)

def disable(application_name):
    modify(application_name, enable=False)

Example

Here's an example to enable LibreOffice Calc:

python -c "import iac.modify_interfaces; iac.modify_interfaces.enable('lowriter')"

--or--

iacmodify --enable --app lowriter

The resulting interfaces.py file modified from a clean install of version 0.2 would look like:

#import iac.app.libreoffice.calc as localc
import iac.app.libreoffice.writer as lowriter
#import iac.app.gnumeric as gnumeric

To disable it, you can do the following:

python -c "import iac.modify_interfaces; iac.modify_interfaces.disable('lowriter')"

--or--

iacmodify --disable --app lowriter

Which would result in the following interfaces.py file:

#import iac.app.libreoffice.calc as localc
#import iac.app.libreoffice.writer as lowriter
#import iac.app.gnumeric as gnumeric

To read the current interfaces.py file contents:

python -c "import iac.modify_interfaces; iac.modify_interfaces.read()"

--or--

iacmodify --show

To view the help:

iacmodify --help