[Hackage] #423: add option to fetch a single package without dependencies

[Hackage]

#423: add option to fetch a single package without dependencies
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  Reporter:  guest               |        Owner:        
      Type:  enhancement         |       Status:  new   
  Priority:  normal              |    Milestone:        
 Component:  cabal-install tool  |      Version:  HEAD  
  Severity:  minor               |   Resolution:        
  Keywords:                      |   Difficulty:  normal
Ghcversion:  6.10.1              |     Platform:        
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Comment (by duncan):

 I think we do not need this feature. I think there are basically two use
 cases:

  * fetch a package so that we can install it later when offline
  * fetch a package so that we can study it, change it, etc

 The first case requires dependencies. The second one does not.

 The first use case is handled by `cabal fetch`. The second one should be
 handled by `cabal unpack` (see #390) or `cabal fetch -o ./` (see #453).

 That said, perhaps one way to organise this is with two modes, one that
 gets deps and one that does not. Then we have the default for the first
 use case use deps and for the second not do. But reversing the default
 could be done with a command line arg. I expect it's not necessary though.

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/423#comment:2>
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