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# Copyright 1999-2006 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.19 2010/03/27 09:10:46 kolmodin Exp $
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#
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# Original authors: Andres Loeh <kosmikus@gentoo.org>
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# Duncan Coutts <dcoutts@gentoo.org>
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# Maintained by: Haskell herd <haskell@gentoo.org>
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#
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# This eclass is for packages that make use of the
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# Haskell Common Architecture for Building Applications
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# and Libraries (cabal).
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#
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# Basic instructions:
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#
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# Before inheriting the eclass, set CABAL_FEATURES to
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# reflect the tools and features that the package makes
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# use of.
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#
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# Currently supported features:
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# haddock -- for documentation generation
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# alex -- lexer/scanner generator
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# happy -- parser generator
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# c2hs -- C interface generator
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# cpphs -- C preprocessor clone written in Haskell
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# profile -- if package supports to build profiling-enabled libraries
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# bootstrap -- only used for the cabal package itself
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# bin -- the package installs binaries
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# lib -- the package installs libraries
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# nocabaldep -- don't add dependency on cabal.
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# only used for packages that _must_ not pull the dependency
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# on cabal, but still use this eclass (e.g. haskell-updater).
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#
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# Dependencies on other cabal packages have to be specified
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# correctly.
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#
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# Cabal libraries should usually be SLOTted with "${PV}".
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#
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# Many Cabal packages require S to be manually set.
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#
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# Conforming Cabal packages don't require any function definitions
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# in the ebuild.
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#
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# Special flags to Cabal Configure can now be set by using
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# CABAL_CONFIGURE_FLAGS
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inherit ghc-package multilib
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HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"
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case "${EAPI:-0}" in
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2|3|4) HASKELL_CABAL_EXPF+=" src_configure" ;;
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*) ;;
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esac
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EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
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for feature in ${CABAL_FEATURES}; do
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case ${feature} in
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haddock) CABAL_USE_HADDOCK=yes;;
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alex) CABAL_USE_ALEX=yes;;
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happy) CABAL_USE_HAPPY=yes;;
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c2hs) CABAL_USE_C2HS=yes;;
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cpphs) CABAL_USE_CPPHS=yes;;
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profile) CABAL_USE_PROFILE=yes;;
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bootstrap) CABAL_BOOTSTRAP=yes;;
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bin) CABAL_HAS_BINARIES=yes;;
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lib) CABAL_HAS_LIBRARIES=yes;;
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nocabaldep) CABAL_FROM_GHC=yes;;
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*) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
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esac
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done
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if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
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IUSE="${IUSE} doc"
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DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
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fi
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if [[ -n "${CABAL_USE_ALEX}" ]]; then
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DEPEND="${DEPEND} dev-haskell/alex"
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cabalconf="${cabalconf} --with-alex=/usr/bin/alex"
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fi
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if [[ -n "${CABAL_USE_HAPPY}" ]]; then
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DEPEND="${DEPEND} dev-haskell/happy"
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cabalconf="${cabalconf} --with-happy=/usr/bin/happy"
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fi
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if [[ -n "${CABAL_USE_C2HS}" ]]; then
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DEPEND="${DEPEND} dev-haskell/c2hs"
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cabalconf="${cabalconf} --with-c2hs=/usr/bin/c2hs"
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fi
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if [[ -n "${CABAL_USE_CPPHS}" ]]; then
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DEPEND="${DEPEND} dev-haskell/cpphs"
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cabalconf="${cabalconf} --with-cpphs=/usr/bin/cpphs"
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fi
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if [[ -n "${CABAL_USE_PROFILE}" ]]; then
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IUSE="${IUSE} profile"
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fi
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# We always use a standalone version of Cabal, rather than the one that comes
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# with GHC. But of course we can't depend on cabal when building cabal itself.
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if [[ -z ${CABAL_MIN_VERSION} ]]; then
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CABAL_MIN_VERSION=1.1.4
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fi
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if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then
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DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
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fi
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# Libraries require GHC to be installed.
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if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then
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RDEPEND="${RDEPEND} dev-lang/ghc"
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fi
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# returns the version of cabal currently in use
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_CABAL_VERSION_CACHE=""
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cabal-version() {
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if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
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if [[ "${CABAL_BOOTSTRAP}" ]]; then
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# We're bootstrapping cabal, so the cabal version is the version
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# of this package itself.
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_CABAL_VERSION_CACHE="${PV}"
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elif [[ "${CABAL_FROM_GHC}" ]]; then
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# We can't assume there's a version of Cabal installed by ebuild as
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# this might be a first time install of GHC (for packages that
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# use the shipped Cabal like haskell-updater).
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# The user is likely to only have one version of Cabal, provided
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# by GHC. Note that dev-haskell/cabal can be a dummy package, only
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# using the version provided by GHC. If the user has another version
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# of Cabal too (more recent than the one GHC provides through
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# dev-haskell/cabal, or possibly older if he used an old
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# Cabal package) the most recent is used (expected to be the last
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# one in the ghc-pkg output).
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_CABAL_VERSION_CACHE="$(ghc-pkg field Cabal version | tail -n 1)"
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# Strip out the "version: " prefix
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_CABAL_VERSION_CACHE="${_CABAL_VERSION_CACHE#"version: "}"
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else
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# We ask portage, not ghc, so that we only pick up
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# portage-installed cabal versions.
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_CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
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fi
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fi
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echo "${_CABAL_VERSION_CACHE}"
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}
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cabal-bootstrap() {
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local setupmodule
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local cabalpackage
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if [[ -f "${S}/Setup.lhs" ]]; then
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setupmodule="${S}/Setup.lhs"
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else
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if [[ -f "${S}/Setup.hs" ]]; then
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setupmodule="${S}/Setup.hs"
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else
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die "No Setup.lhs or Setup.hs found"
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fi
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fi
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# We build the setup program using the latest version of
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# cabal that we have installed
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if version_is_at_least "6.4" "$(ghc-version)"; then
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cabalpackage=Cabal-$(cabal-version)
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else
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# older ghc's don't support package versioning
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cabalpackage=Cabal
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fi
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einfo "Using cabal-$(cabal-version)."
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$(ghc-getghc) -package "${cabalpackage}" --make "${setupmodule}" -o setup \
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|| die "compiling ${setupmodule} failed"
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}
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cabal-mksetup() {
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local setupdir
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if [[ -n $1 ]]; then
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setupdir=$1
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else
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setupdir=${S}
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fi
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rm -f "${setupdir}"/Setup.{lhs,hs}
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echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
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> $setupdir/Setup.hs
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}
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cabal-haddock() {
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./setup haddock || die "setup haddock failed"
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}
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cabal-configure() {
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if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
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cabalconf="${cabalconf} --with-haddock=/usr/bin/haddock"
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fi
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if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
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cabalconf="${cabalconf} --enable-library-profiling"
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fi
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# Building GHCi libs on ppc64 causes "TOC overflow".
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if use ppc64; then
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cabalconf="${cabalconf} --disable-library-for-ghci"
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fi
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if version_is_at_least "1.4" "$(cabal-version)"; then
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# disable executable stripping for the executables, as portage will
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# strip by itself, and pre-stripping gives a QA warning.
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# cabal versions previous to 1.4 does not strip executables, and does
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# not accept the flag.
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# this fixes numerous bugs, amongst them;
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# bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
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cabalconf="${cabalconf} --disable-executable-stripping"
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fi
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if version_is_at_least "1.2.0" "$(cabal-version)"; then
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cabalconf="${cabalconf} --docdir=/usr/share/doc/${PF}"
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# As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
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# it's better if the configure chatter is in the build logs:
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cabalconf="${cabalconf} --verbose"
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fi
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# Note: with Cabal-1.1.6.x we do not have enough control
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# to put the docs into the right place. They're currently going
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# into /usr/share/${P}/ghc-x.y/doc/
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# rather than /usr/share/doc/${PF}/
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# Because we can only set the datadir, not the docdir.
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./setup configure \
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--ghc --prefix=/usr \
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--with-compiler="$(ghc-getghc)" \
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--with-hc-pkg="$(ghc-getghcpkg)" \
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--prefix=/usr \
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--libdir=/usr/$(get_libdir) \
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--libsubdir=${P}/ghc-$(ghc-version) \
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--datadir=/usr/share/ \
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--datasubdir=${P}/ghc-$(ghc-version) \
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${cabalconf} \
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${CABAL_CONFIGURE_FLAGS} \
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"$@" || die "setup configure failed"
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}
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cabal-build() {
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unset LANG LC_ALL LC_MESSAGES
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./setup build \
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|| die "setup build failed"
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}
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cabal-copy() {
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./setup copy \
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--destdir="${D}" \
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|| die "setup copy failed"
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# cabal is a bit eager about creating dirs,
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# so remove them if they are empty
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rmdir "${D}/usr/bin" 2> /dev/null
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# GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
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# no workaround.
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# set the +x permission on executables
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if [[ -d "${D}/usr/bin" ]] ; then
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chmod +x "${D}/usr/bin/"*
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fi
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# TODO: do we still need this?
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}
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cabal-pkg() {
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# This does not actually register since we're using true instead
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# of ghc-pkg. So it just leaves the .installed-pkg-config and we can
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# register that ourselves (if it exists).
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local result
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local err
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if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
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if version_is_at_least "1.2.0" "$(cabal-version)"; then
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# Newer cabal can generate a package conf for us:
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./setup register --gen-pkg-config="${T}/${P}.conf"
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ghc-setup-pkg "${T}/${P}.conf"
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ghc-install-pkg
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else
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# With older cabal we have to hack it by replacing its ghc-pkg
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# with true and then just picking up the .installed-pkg-config
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# file and registering that ourselves (if it exists).
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sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config
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./setup register || die "setup register failed"
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if [[ -f .installed-pkg-config ]]; then
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ghc-setup-pkg .installed-pkg-config
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ghc-install-pkg
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else
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die "setup register has not generated a package configuration file"
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fi
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fi
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fi
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}
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# Some cabal libs are bundled along with some versions of ghc
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# eg filepath-1.0 comes with ghc-6.6.1
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# by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
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# when building with this version of ghc, the ebuild is a dummy that is it will
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# install no files since the package is already included with ghc.
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# However portage still records the dependency and we can upgrade the package
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# to a later one that's not included with ghc.
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# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
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cabal-is-dummy-lib() {
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for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
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[[ "$(ghc-version)" == "$version" ]] && return 0
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done
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return 1
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}
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# exported function: check if cabal is correctly installed for
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# the currently active ghc (we cannot guarantee this with portage)
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haskell-cabal_pkg_setup() {
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ghc-package_pkg_setup
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if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
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eerror "The package dev-haskell/cabal is not correctly installed for"
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eerror "the currently active version of ghc ($(ghc-version)). Please"
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eerror "run ghc-updater or haskell-updater or re-build dev-haskell/cabal."
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die "cabal is not correctly installed"
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fi
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if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
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eerror "QA: Neither bin nor lib are in CABAL_FEATURES."
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fi
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if [[ -n "${CABAL_UNKNOWN}" ]]; then
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ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
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fi
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if cabal-is-dummy-lib; then
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einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
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fi
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}
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haskell-cabal_src_configure() {
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pushd "${S}" > /dev/null
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cabal-bootstrap
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cabal-configure "$@"
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popd > /dev/null
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}
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# exported function: nice alias
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cabal_src_configure() {
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haskell-cabal_src_configure "$@"
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}
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# exported function: cabal-style bootstrap configure and compile
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cabal_src_compile() {
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if ! cabal-is-dummy-lib; then
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has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
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cabal-build
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if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
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cabal-haddock
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fi
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fi
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}
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haskell-cabal_src_compile() {
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pushd "${S}" > /dev/null
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cabal_src_compile "$@"
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popd > /dev/null
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}
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haskell-cabal_src_test() {
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pushd "${S}" > /dev/null
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| 368 |
if cabal-is-dummy-lib; then
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einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
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else
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einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
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./setup test || die "cabal test failed"
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fi
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popd > /dev/null
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}
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# exported function: cabal-style copy and register
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cabal_src_install() {
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| 380 |
if cabal-is-dummy-lib; then
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# create a dummy local package conf file for the sake of ghc-updater
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| 382 |
dodir "$(ghc-confdir)"
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echo '[]' > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
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else
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cabal-copy
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cabal-pkg
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if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
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if ! version_is_at_least "1.1.6" "$(cabal-version)"; then
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dohtml -r dist/doc/html/*
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fi
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fi
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fi
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}
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haskell-cabal_src_install() {
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pushd "${S}" > /dev/null
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cabal_src_install
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popd > /dev/null
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}
|
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# ebuild.sh:use_enable() taken as base
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#
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# Usage examples:
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| 407 |
#
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# CABAL_CONFIGURE_FLAGS=$(cabal_flag gui)
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# leads to "--flags=gui" or "--flags=-gui" (useflag 'gui')
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#
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# CABAL_CONFIGURE_FLAGS=$(cabal_flag gtk gui)
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| 412 |
# also leads to "--flags=gui" or " --flags=-gui" (useflag 'gtk')
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#
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cabal_flag() {
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| 415 |
if [[ -z "$1" ]]; then
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| 416 |
echo "!!! cabal_flag() called without a parameter." >&2
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| 417 |
echo "!!! cabal_flag() <USEFLAG> [<cabal_flagname>]" >&2
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return 1
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| 419 |
fi
|
| 420 |
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| 421 |
local UWORD=${2:-$1}
|
| 422 |
|
| 423 |
if use "$1"; then
|
| 424 |
echo "--flags=${UWORD}"
|
| 425 |
else
|
| 426 |
echo "--flags=-${UWORD}"
|
| 427 |
fi
|
| 428 |
|
| 429 |
return 0
|
| 430 |
}
|
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