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minus.py
--------

***
*** NOTE: This library doesn't work anymore due to changes in the service. 
***       For historic interest only (some of the code & design patterns
***       might be reusable)
***


Introduction
------------

minus.py is a Python library which interacts with the minus.com 
(http://minus.com) file sharing service. 

It provides three layered services:

a)  A 'Pythonic' API to the Minus.com REST interface
b)  An interactive Minus.com client - modeled on ftp(1)
c)  A non-interactive command-line utility to upload/download files
    to Minus.com

Pythonic API
------------

The minus library exposes the Minus.com REST interface through a
number of Python proxy objects:

    MinusConnection     - Low-level connection to REST API
    MinusUser           - User object 
    MinusFolder         - Folder object
    MinusFile           - File object

    MinusAPIError       - API Exception

A simple example of interaction with the API is -

    >>> minus = MinusConnection('api_key','api_secret')        
    >>> minus.authenticate('user','password')
    >>> user = minus.activeuser() 
    >>> print [ f._name for f in user.folders() ]
    >>> folder = minus.find('Stuff')
    >>> print [ f._name for f in folder.files() ]

(See object docstrings for methods available)

Paging is handled transparently through the PagedList/PagedListIter
classes - these support lazy loading however in general this is 
not used through the helper classes.

Interactive Client
------------------

If the module is run directly the __main__ method will call an 
interactive CLI client based on the 'cmd' library. This behaves
in a similar way to the ftp(1) client. Basic help and command
line editing are provided through the 'cmd' library.

The available commands are:

    cd <folder>             Change remote folder
    del <files>..           Delete remote files
    get <remote> [<local>]  Get remote file
    lcd <path>              Change local directory
    lpwd                    Print local path
    ls                      List remote folder
    mget <files>..          Get multiple remote files
    mkdir                   Create remote folder (private)
    mkpublic                Create remote folder (public)
    mput <files>..          Put multiple local files
    put <local> [<remote>]  Put local file
    pwd                     Print remote folder
    rmdir                   Delete remote folder (deletes contents)
    stat <files>..          Print details on remote files

The library supports local/remote globbing and local i/o rediraction - eg.

    Remote glob:        mget *.jpg (works with mget/del/ls/stat)
    Local glob:         mput *.txt (works with mput)
    Pipe to stdout:     get <file> -
    Pipe to process:    get <file> |less
    Pipe from process:  put date| date.txt

Note - Minus.com allows multiple folders/files with the same name (the id 
attribute provides a unique id)

A simple example of an interactive session is:

# ./minus.py --username <user>
Password: 
(Minus:user) [/] : ls
Folder                        Updated              Files  Creator  Visibility
--------------------------------------------------------------------------------
Stuff                         2012-01-08 12:25:44     15  user     private
Stuff2                        2012-01-08 13:28:04      0  user     public
(Minus:paulc) [/] : cd Stuff
--> CWD "Stuff" OK
(Minus:user) [/Stuff] : ls
Name                          Uploaded                 Size  Title
--------------------------------------------------------------------------------
SNV33271.jpg                  2012-01-05 18:36:22    251673  -
SNV33183.jpg                  2012-01-05 18:35:57    176134  -
(Minus:paulc) [/Stuff] : get SNV33271.jpg 
--> GET "SNV33271.jpg" OK (251673 bytes)
(Minus:user) [/Stuff] : put t1.data
--> PUT "t1.data" OK (13672 bytes)

Command Line Utility
--------------------

If the module is run from the command line with the --get, --put, or
--list-folders options the utility runs non interactively and provides
a simple way of uploading/downloading content - eg.

    Upload local files:     
    
        ./minus.py --user user --put 'Folder Name' <files>

        (Folder is created if it doesnt already exist)

    Upload local files to public folder:     

        ./minus.py --user user --public --put 'Folder Name' <files>

    Download remote files:

        ./minus.py --user user --get 'Folder Name' 
        
    Download matching remote files:

        ./minus.py --user user --get 'Folder Name' \*.jpg \*.png

        (Remember to quote remote glob so that it isn't expanded by the shell)

    List Folders:

        ./minus.py --user user --list-folders

    (You can specify the password on the command-line however note that this 
    will be visible in process args - if not specified will be prompted)

API Key
-------

You must have a valid Minus.com API_KEY/API_SECRET to use the library (see
http://minus.com/pages/api to request an API key). These are normally
passed into the MinusConnection constructor.

To use the CLI client the API_KEY/API_SECRET should be placed in a config
file (by default ~/.minus.conf - can be changed using the --config flag).
The file is in '.ini' format and contains a single [api] section with
api_key and api_secret keys:

    [api]
    api_key: ...
    api_secret: ...

Debugging/Development
---------------------

You can turn on the --debug flag to see the HTTP requests/responses and also
use the --shell flag to drop into an interactive Python interpreter immediately
after authentication where you can experiment with the API - there will be 
MinusConnection (minus) and MinusUser (user) variables available.

Dependencies
------------

The module comprises a single file and can be either installed normally using
pip/site-packages etc or just installed & called from a local directory. There
are no dependencies other than the Python interpreter (tested with 2.7 but 
should be ok with earlier).

Repository/Issues
-----------------

The master repository is https://bitbucket.org/paulc/minus. Please use the
Issue tracker there to raise any issues.

License
-------

MIT

Author
------

Paul Chakravarti (paul.chakravarti@gmail.com)


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