[backend] Add Rocket.Chat backend

This commit adds support to fetch messages from a Rocket.Chat channel. The tests have been added accordingly. The usage docs have been updated. Release notes have also been added. Signed-off-by: Animesh Kumar <[email protected]>
chaoss · May 26, 2020 · a6e883a · a6e883a
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commit a6e883a
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diff --git a/README.md b/README.md
@@ -36,6 +36,7 @@ are:
     phabricator      Fetch tasks from a Phabricator site
     pipermail        Fetch messages from a Pipermail archiver
     redmine          Fetch issues from a Redmine server
+    rocketchat       Fetch messages from a Rocket.Chat channel   
     rss              Fetch entries from a RSS feed server
     slack            Fetch messages from a Slack channel
     stackexchange    Fetch questions from StackExchange sites
@@ -321,6 +322,13 @@ $ perceval pipermail 'http://mail-archives.apache.org/mod_mbox/httpd-dev/'
 $ perceval redmine 'https://www.redmine.org/' --from-date '2016-01-01' -t abcdefghijk
 ```
 
+### Rocket.Chat
+
+Rocket.Chat backend needs an API token and a User Id to authenticate to the server.
+```
+$ perceval rocketchat -t 'abchdefghij' --from-date '2020-05-02' https://open.rocket.chat general 1234abcd
+```
+
 ### RSS
 ```
 $ perceval rss 'https://blog.bitergia.com/feed/'

diff --git a/bin/perceval b/bin/perceval
@@ -73,6 +73,7 @@ are:
     phabricator      Fetch tasks from a Phabricator site
     pipermail        Fetch messages from a Pipermail archiver
     redmine          Fetch issues from a Redmine server
+    rocketchat       Fetch messages from a Rocket.Chat channel
     rss              Fetch entries from a RSS feed server
     slack            Fetch messages from a Slack channel
     stackexchange    Fetch questions from StackExchange sites