register_feed2toot_app: --name, --user-credentials-file and client-credentials-file CLI options and documentation

docs/source/use.rst

@@ -5,7 +5,7 @@ After the configuration of Feed2toot, just launch the following command::
     $ feed2toot -c /path/to/feed2toot.ini
 
 Run Feed2toot on a regular basis
-=================================
+---------------------------------
 Feed2toot should be launched on a regular basis in order to efficiently send your new RSS entries to Mastodon. It is quite easy to achieve by adding a line to your user crontab, as described below::
 
     @hourly feed2toot -c /path/to/feed2toot.ini
@@ -15,19 +15,19 @@ will execute feed2toot every hour. Or without the syntactic sugar in the global
     0 * * * * johndoe feed2toot -c /path/to/feed2toot.ini
 
 Test option
-===========
+-----------
 In order to know what's going to be sent to Mastodon without actually doing it, use the **--dry-run** option::
 
     $ feed2toot --dry-run -c /path/to/feed2toot.ini
 
 Debug option
-============
+------------
 In order to increase the verbosity of what's Feed2toot is doing, use the **--debug** option followed by the level of verbosity see [the the available different levels](https://docs.python.org/3/library/logging.html)::
 
     $ feed2toot --debug -c /path/to/feed2toot.ini
 
-Populate the cache file without posting tweets
-==============================================
+Populate the cache file without posting toots
+---------------------------------------------
 Starting from 0.8, Feed2toot offers the **--populate-cache** command line option to populate the cache file without posting to Mastodon::
 
     $ feed2toot --populate-cache -c feed2toot.ini
@@ -43,22 +43,55 @@ Starting from 0.8, Feed2toot offers the **--populate-cache** command line option
     populating RSS entry https://www.journalduhacker.net/s/lqswmz
 
 How to display available sections of the rss feed
-=================================================
+-------------------------------------------------
 Starting from 0.8, Feed2toot offers the **--rss-sections** command line option to display the available section of the rss feed and exits::
 
     $ feed2toot --rss-sections -c feed2toot.ini
     The following sections are available in this RSS feed: ['title', 'comments', 'authors', 'link', 'author', 'summary', 'links', 'tags', id', 'author_detail', 'published'].
 
 Using syslog
-============
+------------
 Feed2toot is able to send its log to syslog. You can use it with the following command::
 
     $ feed2toot --syslog=WARN -c /path/to/feed2toot.ini
 
 Limit number of rss entries published at each execution
-=======================================================
+-------------------------------------------------------
 If you want to limit the number of rss entries published at each execution, you can use the --limit CLI option.
 
     $ feed2toot --limit 5 -c /path/to/feed2toot.ini
 
 The number of posts to Mastodon will be at 5 posts top with this CLI option.
+
+Use register_feed2toot_app
+==========================
+You need a Mastodon app associated to a user on the Mastodon instance. The script register_feed2toot_app will create an app for Feed2toot and upload it on the specified Mastodon instance.
+
+Primary usage ::
+
+    $ register_feed2toot_app
+
+Possible CLI options:
+
+- use the **--client-credentials-file** option to change the filename in which the client credentials are stored (defaults to feed2toot_clientcred.txt)
+- use the **--user-credentials-file** option to change the filename in which the user credentials are stored (defaults to feed2toot_usercred.txt)
+- use the **--name** to change the Mastodon app name (defaults to feed2toot)
+
+Example with full options and full output::
+
+    $ ./register_feed2toot_app --user-credentials-file f2tusercreds.txt --client-credentials-file f2tclientcreds.txt --name f2t
+    
+    This script generates the Mastodon application credentials for Feed2toot.
+    f2tclientcreds.txt and f2tusercreds.txt will be written
+    in the current directory: /home/me/feed2toot/scripts.
+    WARNING: previous files with the same names will be overwritten.
+    
+    A connection is also initiated to create the application.
+    Your password is *not* stored.
+    
+    Mastodon instance URL (defaults to https://mastodon.social): https://framapiaf.org
+    Mastodon login: toto@titi.com
+    Mastodon password: 
+
+    The app f2t was added to your preferences=>authorized apps page.
+    The file f2tclientcreds.txt and f2tusercreds.txt were created in the current directory.