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Guidelines on Code Modification
===============================

Coding Style
------------

* Use syntax compatible to both python 2.6 and 3.1.
* Use docstrings with pydoc in mind
* Follow the style guide for python code:
    http://www.python.org/dev/peps/pep-0008/
* Although this guide suggests otherwise, tabs are used for indentation
    of code and docstrings.  In other documents (readme, etc), use spaces.


Patches
-------

Send patches, created with "git format-patch", to the email adress

    hut@lavabit.com

If you plan to do major changes, or many changes over time, I encourage
you to create a fork on GitHub or Gitorious.


Common Changes
--------------

* Change which files are previewed in the auto preview:
In ranger/gui/widget/browsercolumn.py
the constant PREVIEW_BLACKLIST

* Adding options:
In ranger/defaults/options.py
add the default value, like: my_option = True
In ranger/shared/settings.py
add the name of your option to the constant ALLOWED_SETTINGS

The setting is now accessible at self.settings.my_option,
assuming <self> is a "SettingsAware" object.

* Change commands:
ranger/commands.py

* Create aliases for commands:
In ranger/commands.py
at the bottom, write something like: alias(exit=quit)

* Adding colorschemes:
Copy ranger/colorschemes/default.py to ranger/colorschemes/myscheme.py
and modify it according to your needs.
In ranger/defaults/options.py, change
    colorscheme = colorschemes.default
to: colorscheme = colorschemes.myscheme

* Change which files are considered to be "hidden":
In ranger/defaults/options.py
change the hidden_filter regular expression.

* Change the key map:
Modify ranger/defaults/keys.py.  This should be self-explanatory.
Check out ranger/actions.py for the most common actions, of course
you can also use your own functions.

* Change the file type => application associations:
In ranger/defaults/apps.py
modify the method app_default.
The variable "f" is a filesystem-object with attributes like mimetype,
extension, etc.  For a full list, check ranger/fsobject/fsobject.py

* Change the file extension => mime type associations:
Modify ranger/data/mime.types
and run ranger/data/generate.py to compile it.


Version Numbering
-----------------

X.Y.Z, where:

* X: Milestones
* Y: Stable versions
* Z: Experimental versions
General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. if __name__ == '__main__': from __init__ import init; init() from os.path import realpath, join, dirname import unittest import os import time from ranger.container.bookmarks import Bookmarks TESTDIR = realpath(join(dirname(__file__), 'testdir')) BMFILE = join(TESTDIR, 'bookmarks') class TestDisplayable(unittest.TestCase): def setUp(self): try: os.remove(BMFILE) except: pass def tearDown(self): try: os.remove(BMFILE) except: pass def test_adding_bookmarks(self): bm = Bookmarks(BMFILE, str, autosave=False) bm.load() bm['a'] = 'fooo' self.assertEqual(bm['a'], 'fooo') def test_sharing_bookmarks_between_instances(self): bm = Bookmarks(BMFILE, str, autosave=True) bm2 = Bookmarks(BMFILE, str, autosave=True) bm.load() bm2.load() bm['a'] = 'fooo' self.assertRaises(KeyError, bm2.__getitem__, 'a') bm.save() bm2.load() self.assertEqual(bm['a'], bm2['a']) bm2['a'] = 'bar' bm.save() bm2.save() bm.load() bm2.load() self.assertEqual(bm['a'], bm2['a']) def test_messing_around(self): bm = Bookmarks(BMFILE, str, autosave=False) bm2 = Bookmarks(BMFILE, str, autosave=False) bm.load() bm['a'] = 'car' bm2.load() self.assertRaises(KeyError, bm2.__getitem__, 'a') bm2.save() bm.update() bm.save() bm.load() bm2.load() self.assertEqual(bm['a'], bm2['a']) if __name__ == '__main__': unittest.main()