[hack] Wait until hg update is over in order to initialize the server
[hack] Wait until hg update is over in order to initialize the server

Summary: Wait until hg update is over in order to initialize the server

Reviewed By: dabek

Differential Revision: D4092067

fbshipit-source-id: cf994de3138d7506b9a3b83be28dfa98412600ef

JonathanUsername/flow,nmote/flow,popham/flow,claudiopro/flow,mroch/flow,mroch/flow,gabelevi/flow,facebook/flow,gabro/flow,nmote/flow,mroch/flow,mroch/flow,ForbesLindesay/flow,ylu1317/flow,MichaelDeBoey/flow,gabro/flow,AprilArcus/flow,claudiopro/flow,fletcherw/flow,samwgoldman/flow,facebook/flow,AprilArcus/flow,facebook/flow,MichaelDeBoey/flow,gabro/flow,JonathanUsername/flow,gabelevi/flow,gabelevi/flow,popham/flow,popham/flow,MichaelDeBoey/flow,facebook/flow,fletcherw/flow,AgentME/flow,facebook/flow,jamesgpearce/flow,samwgoldman/flow,ForbesLindesay/flow,AgentME/flow,JonathanUsername/flow,ForbesLindesay/flow,mroch/flow,gabro/flow,JonathanUsername/flow,fletcherw/flow,popham/flow,jamesgpearce/flow,gabro/flow,samwgoldman/flow,jamesgpearce/flow,claudiopro/flow,JonathanUsername/flow,ForbesLindesay/flow,fletcherw/flow,AprilArcus/flow,nmote/flow,nmote/flow,jamesgpearce/flow,MichaelDeBoey/flow,fletcherw/flow,ForbesLindesay/flow,samwgoldman/flow,JonathanUsername/flow,gabelevi/flow,AgentME/flow,TiddoLangerak/flow,facebook/flow,mroch/flow,ylu1317/flow,facebook/flow,gabelevi/flow,ylu1317/flow,popham/flow,jamesgpearce/flow,samwgoldman/flow,nmote/flow,TiddoLangerak/flow,jamesgpearce/flow,ylu1317/flow,TiddoLangerak/flow,claudiopro/flow,AprilArcus/flow,popham/flow,MichaelDeBoey/flow,ylu1317/flow,AgentME/flow,gabelevi/flow,fletcherw/flow,samwgoldman/flow,nmote/flow,popham/flow,nmote/flow,gabelevi/flow,TiddoLangerak/flow,claudiopro/flow,AprilArcus/flow,samwgoldman/flow,jamesgpearce/flow,AgentME/flow,JonathanUsername/flow,mroch/flow,ForbesLindesay/flow,gabro/flow,AprilArcus/flow,TiddoLangerak/flow