#1463: Module → Package lookup in ghc-pkg?
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Reporter: [EMAIL PROTECTED] | Owner:
Type: feature request | Status: new
Priority: normal | Milestone: 6.10
Component: Compiler | Version: 6.6.1
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Os: Unknown | Testcase:
Architecture: Unknown |
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Comment (by simonmar):
hmm. i was looking for a portable, cabal-based way to get the info. i
wouldn't mind if
cabal offered me a way to get that without telling me what the actual
representation
is, but !InstalledPackageInfo seems to be the only concrete format
defined so far,
so converting whatever the actual format is into that would seem to make
sense.
Cabal doesn't currently have what you're asking for, but there's no reason
it couldn't be added. It could be implemented exactly as I described:
invoke `ghc-pkg describe` and parse the output. You would have to tell
Cabal what command to use for `ghc-pkg`, or re-use some of Cabal's
configuration machinery. In theory this method is portable; in practice
only GHC has an `hc-pkg` command at the moment.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1463>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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