[Fedora-haskell-list] [Bug 649228] New: gen_contents_index takes to long to after every rpm transaction

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Summary: gen_contents_index takes to long to after every rpm transaction

https://bugzilla.redhat.com/show_bug.cgi?id=649228

           Summary: gen_contents_index takes to long to after every rpm
                    transaction
           Product: Fedora
           Version: 14
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: medium
          Priority: low
         Component: ghc
        AssignedTo: petersen at redhat.com
        ReportedBy: petersen at redhat.com
         QAContact: extras-qa at fedoraproject.org
                CC: petersen at redhat.com, bos at serpentine.com,
                    fedora-haskell-list at redhat.com
    Classification: Fedora
    Target Release: ---


Description of problem:
gen_contents_index takes upwards of 20s to regenerate
haddock doc indices and is run after every ghc-*-devel
package rpm transaction, which slows down installation,
updates, and removal of haskell libraries significantly.

Version-Release number of selected component (if applicable):
ghc-6.12.3

How reproducible:
every time

Steps to Reproduce:
# cd %{ghcdocbasedir}/libraries
# time ./gen_contents_index

Actual results:
On a typical machine with most ghc-*-devel installed
it takes about 25-30s to run.

Expected results:
20-30s wait for script of rpm transaction is unacceptable.

Additional info:
Re-indexing could be moved to a cronjob perhaps (daily or hourly).
Maybe only concern would be to avoid re-indexing while
do ghc-*-devel rpm transactions, but perhaps the chance of
collision is low enough not to worry specially if we run
hourly.  (If there are no changes it can be a no-op
there should not be much system impact even hourly.)

I am going to check if ghc-6.12.1 is affected too.

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