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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: $ |
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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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# |
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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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|
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inherit ghc-package multilib |
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|
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|
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for feature in ${CABAL_FEATURES}; do |
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case ${feature} in |
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haddock) CABAL_USE_HADDOCK=yes;; |
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alex) CABAL_USE_ALEX=yes;; |
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happy) CABAL_USE_HAPPY=yes;; |
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c2hs) CABAL_USE_C2HS=yes;; |
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cpphs) CABAL_USE_CPPHS=yes;; |
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profile) CABAL_USE_PROFILE=yes;; |
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bootstrap) CABAL_BOOTSTRAP=yes;; |
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bin) CABAL_HAS_BINARIES=yes;; |
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lib) CABAL_HAS_LIBRARIES=yes;; |
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*) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";; |
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esac |
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done |
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|
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if [[ -n "${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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|
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if [[ -n "${CABAL_USE_ALEX}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/alex" |
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cabalconf="${cabalconf} --with-alex=/usr/bin/alex" |
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fi |
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|
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if [[ -n "${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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|
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if [[ -n "${CABAL_USE_C2HS}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/c2hs" |
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cabalconf="${cabalconf} --with-c2hs=/usr/bin/c2hs" |
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fi |
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|
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if [[ -n "${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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|
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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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|
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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}" ]]; then |
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DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}" |
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fi |
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|
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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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|
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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="${PV}" |
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else |
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# We ask portage, not ghc, so that we only pick up |
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# portage-installed cabal versions. |
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_CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)" |
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fi |
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fi |
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echo "${_CABAL_VERSION_CACHE}" |
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} |
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|
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cabal-bootstrap() { |
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local setupmodule |
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local cabalpackage |
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if [[ -f "${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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|
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cabal-mksetup() { |
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local setupdir |
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|
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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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|
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echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \ |
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> $setupdir/Setup.hs |
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} |
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|
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cabal-haddock() { |
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./setup haddock || die "setup haddock failed" |
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} |
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|
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cabal-configure() { |
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if [[ -n "${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 "1.2.0" "$(cabal-version)"; then |
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cabalconf="${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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|
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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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|
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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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|
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cabal-copy() { |
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./setup copy \ |
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--destdir="${D}" \ |
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|| die "setup copy failed" |
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|
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# cabal is a bit eager about creating dirs, |
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# so remove them if they are empty |
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rmdir "${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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|
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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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|
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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)" == "$version" ]] && return 0 |
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done |
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return 1 |
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} |
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|
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# exported function: check if cabal is correctly installed for |
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# the currently active ghc (we cannot guarantee this with portage) |
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haskell-cabal_pkg_setup() { |
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ghc-package_pkg_setup |
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if [[ -z "${CABAL_BOOTSTRAP}" ]] && ! 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 re-emerge 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: ${CABAL_UNKNONW}" |
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fi |
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if cabal-is-dummy-lib; then |
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einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install." |
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fi |
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} |
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|
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# exported function: cabal-style bootstrap configure and compile |
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cabal_src_compile() { |
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if ! cabal-is-dummy-lib; then |
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cabal-bootstrap |
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cabal-configure |
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cabal-build |
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|
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if [[ -n "${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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cabal_src_compile |
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} |
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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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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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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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|
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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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cabal_src_install |
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} |
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|
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EXPORT_FUNCTIONS pkg_setup src_compile src_install |
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