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allow installing just specific bits, like just docs #218
Sometimes people would like to build and install just part of a cabal project, e.g. the documentation or one of the libraries or binaries. Specific use-cases are packaging for OS distro's and generating Haddock docs for code that was installed without it (cf the current state of Debian-stable).
Igloo proposes the following user interface:
As long as docs, license and binaries can be (de)selected individually I don't really mind.
If you want a concrete suggestion, we could have --foo and --no-foo for each thing, with the default being --all and the command line being processed left-to-right, e.g.
cabal install --no-haddock-interfaces --docs --no-htmlwould install
I broadly agree, but am slightly concerned there are dependencies amongst the various things that his syntax does not respect (e.g. one may need to install the libraries - e.g. one depending on a foreign library - in order to get a binary working). So either we have to vet the command lines or coarsen the flags. I hope Duncan and Igloo can draw on their packaging experience and determine what is actually useful.
(Imported comment by guest on 2008-01-31)
One use for this is building split packages for profiling/non-profiling libraries using template haskell. The distro would like to install only profiling libraries under a specific destdir, but normal libraries must be build as well for template haskell support.