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# Copyright 1999-2012 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 1.26 2012/01/20 18:24:09 slyfox Exp $ |
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|
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# @ECLASS: haskell-cabal.eclass |
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# @MAINTAINER: |
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# Haskell herd <haskell@gentoo.org> |
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# @AUTHOR: |
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# Original author: Andres Loeh <kosmikus@gentoo.org> |
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# Original author: Duncan Coutts <dcoutts@gentoo.org> |
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# @BLURB: for packages that make use of the Haskell Common Architecture for Building Applications and Libraries (cabal) |
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# @DESCRIPTION: |
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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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# hscolour -- generation of colourised sources |
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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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|
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inherit ghc-package multilib |
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|
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# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS |
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# @DESCRIPTION: |
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# User-specified additional parameters passed to 'setup configure'. |
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# example: /etc/make.conf: CABAL_EXTRA_CONFIGURE_FLAGS=--enable-shared |
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: ${CABAL_EXTRA_CONFIGURE_FLAGS:=} |
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|
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# @ECLASS-VARIABLE: CABAL_EXTRA_BUILD_FLAGS |
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# @DESCRIPTION: |
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# User-specified additional parameters passed to 'setup build'. |
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# example: /etc/make.conf: CABAL_EXTRA_BUILD_FLAGS=-v |
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: ${CABAL_EXTRA_BUILD_FLAGS:=} |
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|
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# @ECLASS-VARIABLE: GHC_BOOTSTRAP_FLAGS |
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# @DESCRIPTION: |
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# User-specified additional parameters for ghc when building |
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# _only_ 'setup' binary bootstrap. |
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# example: /etc/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make |
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# linking 'setup' faster. |
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: ${GHC_BOOTSTRAP_FLAGS:=} |
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|
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HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install" |
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|
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case "${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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|
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EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF} |
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|
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for feature in ${CABAL_FEATURES}; do |
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case ${feature} in |
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haddock) CABAL_USE_HADDOCK=yes;; |
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hscolour) CABAL_USE_HSCOLOUR=yes;; |
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hoogle) CABAL_USE_HOOGLE=yes;; |
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alex) CABAL_USE_ALEX=yes;; |
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happy) CABAL_USE_HAPPY=yes;; |
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c2hs) CABAL_USE_C2HS=yes;; |
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cpphs) CABAL_USE_CPPHS=yes;; |
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profile) CABAL_USE_PROFILE=yes;; |
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bootstrap) CABAL_BOOTSTRAP=yes;; |
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bin) CABAL_HAS_BINARIES=yes;; |
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lib) CABAL_HAS_LIBRARIES=yes;; |
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nocabaldep) CABAL_FROM_GHC=yes;; |
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*) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";; |
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esac |
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done |
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|
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if [[ -n "${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 "${CABAL_USE_HSCOLOUR}" ]]; then |
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IUSE="${IUSE} hscolour" |
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DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )" |
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fi |
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|
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if [[ -n "${CABAL_USE_ALEX}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/alex" |
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fi |
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|
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if [[ -n "${CABAL_USE_HAPPY}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/happy" |
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fi |
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|
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if [[ -n "${CABAL_USE_C2HS}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/c2hs" |
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fi |
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|
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if [[ -n "${CABAL_USE_CPPHS}" ]]; then |
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DEPEND="${DEPEND} dev-haskell/cpphs" |
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fi |
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|
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if [[ -n "${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}" && -z "${CABAL_FROM_GHC}" ]]; then |
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DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}" |
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fi |
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|
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# Libraries require GHC to be installed. |
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if [[ -n "${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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elif [[ "${CABAL_FROM_GHC}" ]]; then |
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local cabal_package=$(echo "$(ghc-libdir)"/Cabal-*) |
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# /path/to/ghc/Cabal-${VER} -> ${VER} |
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_CABAL_VERSION_CACHE="${cabal_package/*Cabal-/}" |
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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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|
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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-$(cabal-version)." |
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|
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make_setup() { |
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set -- -package "${cabalpackage}" --make "${setupmodule}" \ |
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${GHC_BOOTSTRAP_FLAGS} \ |
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"$@" \ |
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-o setup |
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echo $(ghc-getghc) ${HCFLAGS} "$@" |
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$(ghc-getghc) "$@" |
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} |
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if $(ghc-supports-shared-libraries); then |
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# some custom build systems might use external libraries, |
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# for which we don't have shared libs, so keep static fallback |
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make_setup -dynamic "$@" || make_setup "$@" || die "compiling ${setupmodule} failed" |
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else |
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make_setup "$@" || die "compiling ${setupmodule} failed" |
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fi |
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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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|
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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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> $setupdir/Setup.hs |
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} |
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|
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cabal-hscolour() { |
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set -- hscolour "$@" |
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echo ./setup "$@" |
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./setup "$@" || die "setup hscolour failed" |
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} |
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|
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cabal-haddock() { |
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set -- haddock "$@" |
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echo ./setup "$@" |
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./setup "$@" || die "setup haddock failed" |
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} |
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|
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cabal-hscolour-haddock() { |
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# --hyperlink-source implies calling 'setup hscolour' |
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set -- haddock --hyperlink-source |
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echo ./setup "$@" |
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./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed" |
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} |
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|
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cabal-configure() { |
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has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX= |
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|
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if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then |
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cabalconf="${cabalconf} --with-haddock=${EPREFIX}/usr/bin/haddock" |
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fi |
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if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then |
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cabalconf="${cabalconf} --enable-library-profiling" |
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fi |
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if [[ -n "${CABAL_USE_ALEX}" ]]; then |
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cabalconf="${cabalconf} --with-alex=${EPREFIX}/usr/bin/alex" |
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fi |
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|
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if [[ -n "${CABAL_USE_HAPPY}" ]]; then |
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cabalconf="${cabalconf} --with-happy=${EPREFIX}/usr/bin/happy" |
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fi |
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|
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if [[ -n "${CABAL_USE_C2HS}" ]]; then |
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cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs" |
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fi |
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if [[ -n "${CABAL_USE_CPPHS}" ]]; then |
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cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs" |
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fi |
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|
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local option |
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for option in ${HCFLAGS} |
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do |
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cabalconf+=" --ghc-option=$option" |
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done |
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|
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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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|
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# currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217) |
271 |
# so translate LDFLAGS to ghc parameters (without filtering) |
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local flag |
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for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done |
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|
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if version_is_at_least "1.4" "$(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="${cabalconf} --disable-executable-stripping" |
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fi |
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|
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if version_is_at_least "1.2.0" "$(cabal-version)"; then |
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cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}" |
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# As of Cabal 1.2, configure is quite quiet. For diagnostic purposes |
288 |
# it's better if the configure chatter is in the build logs: |
289 |
cabalconf="${cabalconf} --verbose" |
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fi |
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# Note: with Cabal-1.1.6.x we do not have enough control |
292 |
# 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. |
296 |
|
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# We build shared version of our Cabal where ghc ships it's shared |
298 |
# version of it. We will link ./setup as dynamic binary againt Cabal later. |
299 |
[[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \ |
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$(ghc-supports-shared-libraries) && \ |
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cabalconf="${cabalconf} --enable-shared" |
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|
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set -- configure \ |
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--ghc --prefix="${EPREFIX}"/usr \ |
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--with-compiler="$(ghc-getghc)" \ |
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--with-hc-pkg="$(ghc-getghcpkg)" \ |
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--prefix="${EPREFIX}"/usr \ |
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--libdir="${EPREFIX}"/usr/$(get_libdir) \ |
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--libsubdir=${P}/ghc-$(ghc-version) \ |
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--datadir="${EPREFIX}"/usr/share/ \ |
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--datasubdir=${P}/ghc-$(ghc-version) \ |
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${cabalconf} \ |
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${CABAL_CONFIGURE_FLAGS} \ |
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${CABAL_EXTRA_CONFIGURE_FLAGS} \ |
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"$@" |
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echo ./setup "$@" |
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./setup "$@" || die "setup configure failed" |
318 |
} |
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|
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cabal-build() { |
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unset LANG LC_ALL LC_MESSAGES |
322 |
set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@" |
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echo ./setup "$@" |
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./setup "$@" \ |
325 |
|| die "setup build failed" |
326 |
} |
327 |
|
328 |
cabal-copy() { |
329 |
has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D} |
330 |
|
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set -- copy --destdir="${D}" "$@" |
332 |
echo ./setup "$@" |
333 |
./setup "$@" || die "setup copy failed" |
334 |
|
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# cabal is a bit eager about creating dirs, |
336 |
# so remove them if they are empty |
337 |
rmdir "${ED}/usr/bin" 2> /dev/null |
338 |
|
339 |
# GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has |
340 |
# no workaround. |
341 |
# set the +x permission on executables |
342 |
if [[ -d "${ED}/usr/bin" ]] ; then |
343 |
chmod +x "${ED}/usr/bin/"* |
344 |
fi |
345 |
# TODO: do we still need this? |
346 |
} |
347 |
|
348 |
cabal-pkg() { |
349 |
# This does not actually register since we're using true instead |
350 |
# of ghc-pkg. So it just leaves the .installed-pkg-config and we can |
351 |
# register that ourselves (if it exists). |
352 |
local result |
353 |
local err |
354 |
|
355 |
if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then |
356 |
if version_is_at_least "1.2.0" "$(cabal-version)"; then |
357 |
# Newer cabal can generate a package conf for us: |
358 |
./setup register --gen-pkg-config="${T}/${P}.conf" |
359 |
ghc-setup-pkg "${T}/${P}.conf" |
360 |
ghc-install-pkg |
361 |
else |
362 |
# With older cabal we have to hack it by replacing its ghc-pkg |
363 |
# with true and then just picking up the .installed-pkg-config |
364 |
# file and registering that ourselves (if it exists). |
365 |
sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config |
366 |
./setup register || die "setup register failed" |
367 |
if [[ -f .installed-pkg-config ]]; then |
368 |
ghc-setup-pkg .installed-pkg-config |
369 |
ghc-install-pkg |
370 |
else |
371 |
die "setup register has not generated a package configuration file" |
372 |
fi |
373 |
fi |
374 |
fi |
375 |
} |
376 |
|
377 |
# Some cabal libs are bundled along with some versions of ghc |
378 |
# eg filepath-1.0 comes with ghc-6.6.1 |
379 |
# by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that |
380 |
# when building with this version of ghc, the ebuild is a dummy that is it will |
381 |
# install no files since the package is already included with ghc. |
382 |
# However portage still records the dependency and we can upgrade the package |
383 |
# to a later one that's not included with ghc. |
384 |
# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1". |
385 |
cabal-is-dummy-lib() { |
386 |
for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do |
387 |
[[ "$(ghc-version)" == "$version" ]] && return 0 |
388 |
done |
389 |
return 1 |
390 |
} |
391 |
|
392 |
# exported function: check if cabal is correctly installed for |
393 |
# the currently active ghc (we cannot guarantee this with portage) |
394 |
haskell-cabal_pkg_setup() { |
395 |
ghc-package_pkg_setup |
396 |
if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then |
397 |
eerror "The package dev-haskell/cabal is not correctly installed for" |
398 |
eerror "the currently active version of ghc ($(ghc-version)). Please" |
399 |
eerror "run ghc-updater or haskell-updater or re-build dev-haskell/cabal." |
400 |
die "cabal is not correctly installed" |
401 |
fi |
402 |
if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then |
403 |
eerror "QA: Neither bin nor lib are in CABAL_FEATURES." |
404 |
fi |
405 |
if [[ -n "${CABAL_UNKNOWN}" ]]; then |
406 |
ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}" |
407 |
fi |
408 |
if cabal-is-dummy-lib; then |
409 |
einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install." |
410 |
fi |
411 |
} |
412 |
|
413 |
haskell-cabal_src_configure() { |
414 |
if ! cabal-is-dummy-lib; then |
415 |
pushd "${S}" > /dev/null |
416 |
|
417 |
cabal-bootstrap |
418 |
|
419 |
cabal-configure "$@" |
420 |
|
421 |
popd > /dev/null |
422 |
fi |
423 |
} |
424 |
|
425 |
# exported function: nice alias |
426 |
cabal_src_configure() { |
427 |
haskell-cabal_src_configure "$@" |
428 |
} |
429 |
|
430 |
# exported function: cabal-style bootstrap configure and compile |
431 |
cabal_src_compile() { |
432 |
# it's a common mistake when one bumps ebuild to EAPI="2" (and upper) |
433 |
# and forgets to separate src_compile() to src_configure()/src_compile(). |
434 |
# Such error leads to default src_configure and we lose all passed flags. |
435 |
if ! has "${EAPI:-0}" 0 1; then |
436 |
local passed_flag |
437 |
for passed_flag in "$@"; do |
438 |
[[ ${passed_flag} == --flags=* ]] && \ |
439 |
eqawarn "Cabal option '${passed_flag}' has effect only in src_configure()" |
440 |
done |
441 |
fi |
442 |
|
443 |
if ! cabal-is-dummy-lib; then |
444 |
has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@" |
445 |
cabal-build |
446 |
|
447 |
if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then |
448 |
if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then |
449 |
# hscolour and haddock |
450 |
cabal-hscolour-haddock |
451 |
else |
452 |
# just haddock |
453 |
cabal-haddock |
454 |
fi |
455 |
else |
456 |
if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then |
457 |
# just hscolour |
458 |
cabal-hscolour |
459 |
fi |
460 |
fi |
461 |
fi |
462 |
} |
463 |
|
464 |
haskell-cabal_src_compile() { |
465 |
pushd "${S}" > /dev/null |
466 |
|
467 |
cabal_src_compile "$@" |
468 |
|
469 |
popd > /dev/null |
470 |
} |
471 |
|
472 |
haskell-cabal_src_test() { |
473 |
pushd "${S}" > /dev/null |
474 |
|
475 |
if cabal-is-dummy-lib; then |
476 |
einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}" |
477 |
else |
478 |
einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}" |
479 |
set -- test "$@" |
480 |
echo ./setup "$@" |
481 |
./setup "$@" || die "cabal test failed" |
482 |
fi |
483 |
|
484 |
popd > /dev/null |
485 |
} |
486 |
|
487 |
# exported function: cabal-style copy and register |
488 |
cabal_src_install() { |
489 |
has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX= |
490 |
|
491 |
if cabal-is-dummy-lib; then |
492 |
# create a dummy local package conf file for the sake of ghc-updater |
493 |
local ghc_confdir_with_prefix="$(ghc-confdir)" |
494 |
# remove EPREFIX |
495 |
dodir ${ghc_confdir_with_prefix#${EPREFIX}} |
496 |
echo '[]' > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" |
497 |
else |
498 |
cabal-copy |
499 |
cabal-pkg |
500 |
|
501 |
if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then |
502 |
if ! version_is_at_least "1.1.6" "$(cabal-version)"; then |
503 |
dohtml -r dist/doc/html/* |
504 |
fi |
505 |
fi |
506 |
fi |
507 |
} |
508 |
|
509 |
haskell-cabal_src_install() { |
510 |
pushd "${S}" > /dev/null |
511 |
|
512 |
cabal_src_install |
513 |
|
514 |
popd > /dev/null |
515 |
} |
516 |
|
517 |
# ebuild.sh:use_enable() taken as base |
518 |
# |
519 |
# Usage examples: |
520 |
# |
521 |
# CABAL_CONFIGURE_FLAGS=$(cabal_flag gui) |
522 |
# leads to "--flags=gui" or "--flags=-gui" (useflag 'gui') |
523 |
# |
524 |
# CABAL_CONFIGURE_FLAGS=$(cabal_flag gtk gui) |
525 |
# also leads to "--flags=gui" or " --flags=-gui" (useflag 'gtk') |
526 |
# |
527 |
cabal_flag() { |
528 |
if [[ -z "$1" ]]; then |
529 |
echo "!!! cabal_flag() called without a parameter." >&2 |
530 |
echo "!!! cabal_flag() <USEFLAG> [<cabal_flagname>]" >&2 |
531 |
return 1 |
532 |
fi |
533 |
|
534 |
local UWORD=${2:-$1} |
535 |
|
536 |
if use "$1"; then |
537 |
echo "--flags=${UWORD}" |
538 |
else |
539 |
echo "--flags=-${UWORD}" |
540 |
fi |
541 |
|
542 |
return 0 |
543 |
} |