[Hackage] #732: Implement opt-in for anonymous build reporting

[Hackage]

#732: Implement opt-in for anonymous build reporting
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  Reporter:  duncan              |        Owner:     
      Type:  enhancement         |       Status:  new
  Priority:  normal              |    Milestone:     
 Component:  cabal-install tool  |      Version:     
  Severity:  normal              |     Keywords:     
Difficulty:  hard (< 1 day)      |   Ghcversion:     
  Platform:                      |  
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 We want people to send in anonymous build reports. We also want to respect
 people's privacy. The suggestion is that we should use an opt-in system
 but make it very easy to opt in.

 Currently most users have a config file that contains no value set for the
 config file fields that control the build reporting feature. The
 suggestion is that when the build reporting config items are not set then
 we should interactively prompt users like so:

 {{{
 $ cabal update
 Cabal can send build reports back to to the package server.
 Build reporting helps to improve package quality. The information
 sent back is minimal and it does not identify your computer.
 For more details see: http://haskell.org/cabal/reporting

 Enable automatic anonymous reporting of package builds? [y/n/?]

 Downloading the latest package list from hackage.haskell.org
 }}}

 We would then rewrite the config file with the updated setting, either on
 or off. That will require that we correctly preserve settings and comments
 in the config file.

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/732>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects