Added github token support for github autentification

Change-Id: I5869e01a9e8816d7aee1d783c8e091632cda707a

doc/source/tools/stackalytics-processor.txt

@@ -17,6 +17,7 @@ usage: stackalytics-processor [-h] [--config-dir DIR] [--config-file PATH]
                               [--sources-root SOURCES_ROOT]
                               [--ssh-key-filename SSH_KEY_FILENAME]
                               [--ssh-username SSH_USERNAME]
+                              [--github-token GITHUB_TOKEN]
                               [--github-login GITHUB_LOGIN]
                               [--github-password GITHUB_PASSWORD]
                               [--syslog-log-facility SYSLOG_LOG_FACILITY]
@@ -91,10 +92,14 @@ optional arguments:
                         SSH key for gerrit review system access
   --ssh-username SSH_USERNAME
                         SSH username for gerrit review system access
+  --github-token GITHUB_TOKEN
+                        Token for github access. (string value)
   --github-login GITHUB_LOGIN
-                        Login for github access (string value)
+                        Login for github access. If GITHUB_TOKEN is specified,
+                        GITHUB_LOGIN will be ignored (string value)
   --github-password GITHUB_PASSWORD
-                        Password for github access
+                        Password for github access. If GITHUB_TOKEN is specified,
+                        GITHUB_PASSWORD will be ignored (string value)
   --syslog-log-facility SYSLOG_LOG_FACILITY
                         Syslog facility to receive log lines. This option is
                         ignored if log_config_append is set.

etc/stackalytics.conf

@@ -190,6 +190,9 @@
 # How many times to retry after Gerrit errors (integer value)
 #gerrit_retry = 10
 
+# Token for github access. If specified, github_login and github_password will be ignored (string value)
+#github_token = token
+
 # Login for github access (string value)
 #github_login = login
 

stackalytics/processor/config.py

@@ -46,6 +46,8 @@ PROCESSOR_OPTS = [
                help='SSH key for gerrit review system access'),
     cfg.StrOpt('ssh-username', default='user',
                help='SSH username for gerrit review system access'),
+    cfg.StrOpt('github-token', default=None,
+               help='Token for github access'),
     cfg.StrOpt('github-login', default=None,
                help='Login for github access'),
     cfg.StrOpt('github-password', default=None,

stackalytics/processor/default_data_processor.py

@@ -108,9 +108,13 @@ def _retrieve_project_list_from_gerrit(project_source):
 
 def _retrieve_project_list_from_github(project_source):
     LOG.info('Retrieving project list from GitHub')
-    github = MainClass.Github(timeout=60,
-                              login_or_token=CONF.github_login,
-                              password=CONF.github_password)
+    if CONF.github_token:
+        github = MainClass.Github(timeout=60,
+                                  login_or_token=CONF.github_token)
+    else:
+        github = MainClass.Github(timeout=60,
+                                  login_or_token=CONF.github_login,
+                                  password=CONF.github_password)
 
     organization = project_source['organization']
     LOG.debug('Get list of projects for organization %s', organization)