Ability to run cmd scripts directly.

Add a conditional check to call main() in cmd scripts if they're
being invoked directly. Some already had them, but most simply
relied on the entrypoints wrappers declared in setup.py. With this
change, users can more easily test and debug the various command
scripts directly without needing setup magic.

Change-Id: I16c26e954687de8af5f971936fb8eee2072c06bc
Reviewed-on: https://review.openstack.org/26966
Reviewed-by: Paul Belanger <paul.belanger@polybeacon.com>
Reviewed-by: Khai Do <zaro0508@gmail.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins

jeepyb/cmd/close_pull_requests.py

@@ -100,3 +100,6 @@ def main():
                                        completed=True)
             issue.create_comment(MESSAGE % vars)
             req.edit(state="closed")
+
+if __name__ == "__main__":
+    main()

jeepyb/cmd/expire_old_reviews.py

@@ -102,3 +102,6 @@ def main():
                     break
 
     logger.info('End expire review')
+
+if __name__ == "__main__":
+    main()

jeepyb/cmd/fetch_remotes.py

@@ -77,3 +77,6 @@ def main():
         run_command("git remote add -f upstream %s" % remote_url)
         # Fetch new revs from it
         run_command("git remote update upstream")
+
+if __name__ == "__main__":
+    main()

jeepyb/cmd/manage_projects.py

@@ -390,3 +390,6 @@ project=%s
                     run_command("rm -fr %s" % tmpdir)
     finally:
         os.unlink(ssh_env['GIT_SSH'])
+
+if __name__ == "__main__":
+    main()

jeepyb/cmd/notify_impact.py

@@ -89,3 +89,6 @@ def main():
     # Process impacts found in git log
     if impacted(git_log, args.impact):
         process_impact(git_log, args)
+
+if __name__ == "__main__":
+    main()

jeepyb/cmd/trivial_rebase.py

@@ -278,3 +278,6 @@ def main():
                               approve_category, score, options.commit]
         SuExec(options, approval["account_id"], ' '.join(gerrit_approve_cmd))
     sys.exit(0)
+
+if __name__ == "__main__":
+    main()

jeepyb/cmd/update_blueprint.py

@@ -140,3 +140,6 @@ def main():
     conn = MySQLdb.connect(user=DB_USER, passwd=DB_PASS, db=DB_DB)
 
     find_specs(launchpad, conn, args)
+
+if __name__ == "__main__":
+    main()

jeepyb/cmd/update_bug.py

@@ -274,3 +274,6 @@ def main():
     # Process bugtasks found in git log
     for bugtask in find_bugs(launchpad, git_log, args):
         process_bugtask(launchpad, bugtask, git_log, args)
+
+if __name__ == "__main__":
+    main()