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1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2006 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.12 2007/07/27 09:09:20 kolmodin Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.16 2009/09/09 18:40:11 kolmodin Exp $
4# 4#
5# Original authors: Andres Loeh <kosmikus@gentoo.org> 5# Original authors: Andres Loeh <kosmikus@gentoo.org>
6# Duncan Coutts <dcoutts@gentoo.org> 6# Duncan Coutts <dcoutts@gentoo.org>
7# Maintained by: Haskell herd <haskell@gentoo.org> 7# Maintained by: Haskell herd <haskell@gentoo.org>
8# 8#
24# cpphs -- C preprocessor clone written in Haskell 24# cpphs -- C preprocessor clone written in Haskell
25# profile -- if package supports to build profiling-enabled libraries 25# profile -- if package supports to build profiling-enabled libraries
26# bootstrap -- only used for the cabal package itself 26# bootstrap -- only used for the cabal package itself
27# bin -- the package installs binaries 27# bin -- the package installs binaries
28# lib -- the package installs libraries 28# lib -- the package installs libraries
29# nocabaldep -- don't add dependency on cabal.
30# only used for packages that _must_ not pull the dependency
31# on cabal, but still use this eclass (e.g. haskell-updater).
29# 32#
30# Dependencies on other cabal packages have to be specified 33# Dependencies on other cabal packages have to be specified
31# correctly. 34# correctly.
32# 35#
33# Cabal libraries should usually be SLOTted with "${PV}". 36# Cabal libraries should usually be SLOTted with "${PV}".
43inherit ghc-package multilib 46inherit ghc-package multilib
44 47
45 48
46for feature in ${CABAL_FEATURES}; do 49for feature in ${CABAL_FEATURES}; do
47 case ${feature} in 50 case ${feature} in
48 haddock) CABAL_USE_HADDOCK=yes;; 51 haddock) CABAL_USE_HADDOCK=yes;;
49 alex) CABAL_USE_ALEX=yes;; 52 alex) CABAL_USE_ALEX=yes;;
50 happy) CABAL_USE_HAPPY=yes;; 53 happy) CABAL_USE_HAPPY=yes;;
51 c2hs) CABAL_USE_C2HS=yes;; 54 c2hs) CABAL_USE_C2HS=yes;;
52 cpphs) CABAL_USE_CPPHS=yes;; 55 cpphs) CABAL_USE_CPPHS=yes;;
53 profile) CABAL_USE_PROFILE=yes;; 56 profile) CABAL_USE_PROFILE=yes;;
54 bootstrap) CABAL_BOOTSTRAP=yes;; 57 bootstrap) CABAL_BOOTSTRAP=yes;;
55 bin) CABAL_HAS_BINARIES=yes;; 58 bin) CABAL_HAS_BINARIES=yes;;
56 lib) CABAL_HAS_LIBRARIES=yes;; 59 lib) CABAL_HAS_LIBRARIES=yes;;
60 nocabaldep) CABAL_FROM_GHC=yes;;
57 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";; 61 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
58 esac 62 esac
59done 63done
60 64
61if [[ -n "${CABAL_USE_HADDOCK}" ]]; then 65if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
62 IUSE="${IUSE} doc" 66 IUSE="${IUSE} doc"
63 DEPEND="${DEPEND} doc? ( dev-haskell/haddock )" 67 DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
64 cabalconf="${cabalconf} --with-haddock=/usr/bin/haddock"
65fi 68fi
66 69
67if [[ -n "${CABAL_USE_ALEX}" ]]; then 70if [[ -n "${CABAL_USE_ALEX}" ]]; then
68 DEPEND="${DEPEND} dev-haskell/alex" 71 DEPEND="${DEPEND} dev-haskell/alex"
69 cabalconf="${cabalconf} --with-alex=/usr/bin/alex" 72 cabalconf="${cabalconf} --with-alex=/usr/bin/alex"
88 IUSE="${IUSE} profile" 91 IUSE="${IUSE} profile"
89fi 92fi
90 93
91# We always use a standalone version of Cabal, rather than the one that comes 94# We always use a standalone version of Cabal, rather than the one that comes
92# with GHC. But of course we can't depend on cabal when building cabal itself. 95# with GHC. But of course we can't depend on cabal when building cabal itself.
96if [[ -z ${CABAL_MIN_VERSION} ]]; then
93CABAL_MIN_VERSION=1.1.4 97 CABAL_MIN_VERSION=1.1.4
94if [[ -z "${CABAL_BOOTSTRAP}" ]]; then 98fi
99if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then
95 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}" 100 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
96fi 101fi
97 102
98# Libraries require GHC to be installed. 103# Libraries require GHC to be installed.
99if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then 104if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then
100 RDEPEND="${RDEPEND} dev-lang/ghc" 105 RDEPEND="${RDEPEND} dev-lang/ghc"
101fi 106fi
102 107
108# returns the version of cabal currently in use
109_CABAL_VERSION_CACHE=""
110cabal-version() {
111 if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
112 if [[ "${CABAL_BOOTSTRAP}" ]]; then
113 # We're bootstrapping cabal, so the cabal version is the version
114 # of this package itself.
115 _CABAL_VERSION_CACHE="${PV}"
116 else
117 # We ask portage, not ghc, so that we only pick up
118 # portage-installed cabal versions.
119 _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
120 fi
121 fi
122 echo "${_CABAL_VERSION_CACHE}"
123}
124
103cabal-bootstrap() { 125cabal-bootstrap() {
104 local setupmodule 126 local setupmodule
105 local cabalversion 127 local cabalpackage
106 if [[ -f "${S}/Setup.lhs" ]]; then 128 if [[ -f "${S}/Setup.lhs" ]]; then
107 setupmodule="${S}/Setup.lhs" 129 setupmodule="${S}/Setup.lhs"
108 else 130 else
109 if [[ -f "${S}/Setup.hs" ]]; then 131 if [[ -f "${S}/Setup.hs" ]]; then
110 setupmodule="${S}/Setup.hs" 132 setupmodule="${S}/Setup.hs"
113 fi 135 fi
114 fi 136 fi
115 137
116 # We build the setup program using the latest version of 138 # We build the setup program using the latest version of
117 # cabal that we have installed 139 # cabal that we have installed
118 cabalversion=$(ghc-bestcabalversion) 140 if version_is_at_least "6.4" "$(ghc-version)"; then
141 cabalpackage=Cabal-$(cabal-version)
142 else
143 # older ghc's don't support package versioning
144 cabalpackage=Cabal
145 fi
119 einfo "Using ${cabalversion}." 146 einfo "Using cabal-$(cabal-version)."
120 $(ghc-getghc) -package "${cabalversion}" --make "${setupmodule}" -o setup \ 147 $(ghc-getghc) -package "${cabalpackage}" --make "${setupmodule}" -o setup \
121 || die "compiling ${setupmodule} failed" 148 || die "compiling ${setupmodule} failed"
149}
150
151cabal-mksetup() {
152 local setupdir
153
154 if [[ -n $1 ]]; then
155 setupdir=$1
156 else
157 setupdir=${S}
158 fi
159
160 rm -f "${setupdir}"/Setup.{lhs,hs}
161
162 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
163 > $setupdir/Setup.hs
122} 164}
123 165
124cabal-haddock() { 166cabal-haddock() {
125 ./setup haddock || die "setup haddock failed" 167 ./setup haddock || die "setup haddock failed"
126} 168}
127 169
128cabal-configure() { 170cabal-configure() {
171 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
172 cabalconf="${cabalconf} --with-haddock=/usr/bin/haddock"
173 fi
129 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then 174 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
130 cabalconf="${cabalconf} --enable-library-profiling" 175 cabalconf="${cabalconf} --enable-library-profiling"
131 fi 176 fi
132 # Building GHCi libs on ppc64 causes "TOC overflow". 177 # Building GHCi libs on ppc64 causes "TOC overflow".
133 if use ppc64; then 178 if use ppc64; then
134 cabalconf="${cabalconf} --disable-library-for-ghci" 179 cabalconf="${cabalconf} --disable-library-for-ghci"
135 fi 180 fi
136 181
182 if version_is_at_least "1.2.0" "$(cabal-version)"; then
183 cabalconf="${cabalconf} --docdir=/usr/share/doc/${PF}"
184 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
185 # it's better if the configure chatter is in the build logs:
186 cabalconf="${cabalconf} --verbose"
187 fi
137 # Note: with Cabal-1.1.6.x we still do not have enough control 188 # Note: with Cabal-1.1.6.x we do not have enough control
138 # to put the docs into the right place. They're currently going 189 # to put the docs into the right place. They're currently going
139 # into /usr/share/${P}/ghc-x.y/doc/ 190 # into /usr/share/${P}/ghc-x.y/doc/
140 # rather than /usr/share/doc/${PF}/ 191 # rather than /usr/share/doc/${PF}/
141 # Because we can only set the datadir, not the docdir. 192 # Because we can only set the datadir, not the docdir.
142 193
153 ${CABAL_CONFIGURE_FLAGS} \ 204 ${CABAL_CONFIGURE_FLAGS} \
154 "$@" || die "setup configure failed" 205 "$@" || die "setup configure failed"
155} 206}
156 207
157cabal-build() { 208cabal-build() {
209 unset LANG LC_ALL LC_MESSAGES
158 ./setup build \ 210 ./setup build \
159 || die "setup build failed" 211 || die "setup build failed"
160} 212}
161 213
162cabal-copy() { 214cabal-copy() {
183 # register that ourselves (if it exists). 235 # register that ourselves (if it exists).
184 local result 236 local result
185 local err 237 local err
186 238
187 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then 239 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
188 sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config 240 if version_is_at_least "1.2.0" "$(cabal-version)"; then
189 ./setup register || die "setup register failed" 241 # Newer cabal can generate a package conf for us:
190 if [[ -f .installed-pkg-config ]]; then 242 ./setup register --gen-pkg-config="${T}/${P}.conf"
191 ghc-setup-pkg .installed-pkg-config 243 ghc-setup-pkg "${T}/${P}.conf"
192 ghc-install-pkg 244 ghc-install-pkg
193 else 245 else
246 # With older cabal we have to hack it by replacing its ghc-pkg
247 # with true and then just picking up the .installed-pkg-config
248 # file and registering that ourselves (if it exists).
249 sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config
250 ./setup register || die "setup register failed"
251 if [[ -f .installed-pkg-config ]]; then
252 ghc-setup-pkg .installed-pkg-config
253 ghc-install-pkg
254 else
194 die "setup register has not generated a package configuration file" 255 die "setup register has not generated a package configuration file"
195 fi 256 fi
196 fi 257 fi
258 fi
259}
260
261# Some cabal libs are bundled along with some versions of ghc
262# eg filepath-1.0 comes with ghc-6.6.1
263# by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
264# when building with this version of ghc, the ebuild is a dummy that is it will
265# install no files since the package is already included with ghc.
266# However portage still records the dependency and we can upgrade the package
267# to a later one that's not included with ghc.
268# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
269cabal-is-dummy-lib() {
270 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
271 [[ "$(ghc-version)" == "$version" ]] && return 0
272 done
273 return 1
197} 274}
198 275
199# exported function: check if cabal is correctly installed for 276# exported function: check if cabal is correctly installed for
200# the currently active ghc (we cannot guarantee this with portage) 277# the currently active ghc (we cannot guarantee this with portage)
201haskell-cabal_pkg_setup() { 278haskell-cabal_pkg_setup() {
202 ghc-package_pkg_setup 279 ghc-package_pkg_setup
203 if [[ -z "${CABAL_BOOTSTRAP}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then 280 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
204 eerror "The package dev-haskell/cabal is not correctly installed for" 281 eerror "The package dev-haskell/cabal is not correctly installed for"
205 eerror "the currently active version of ghc ($(ghc-version)). Please" 282 eerror "the currently active version of ghc ($(ghc-version)). Please"
206 eerror "run ghc-updater or re-emerge dev-haskell/cabal." 283 eerror "run ghc-updater or haskell-updater or re-build dev-haskell/cabal."
207 die "cabal is not correctly installed" 284 die "cabal is not correctly installed"
208 fi 285 fi
209 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then 286 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
210 eerror "QA: Neither bin nor lib are in CABAL_FEATURES." 287 eerror "QA: Neither bin nor lib are in CABAL_FEATURES."
211 fi 288 fi
212 if [[ -n "${CABAL_UNKNOWN}" ]]; then 289 if [[ -n "${CABAL_UNKNOWN}" ]]; then
213 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNONW}" 290 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
291 fi
292 if cabal-is-dummy-lib; then
293 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
214 fi 294 fi
215} 295}
216 296
217# exported function: cabal-style bootstrap configure and compile 297# exported function: cabal-style bootstrap configure and compile
218cabal_src_compile() { 298cabal_src_compile() {
299 if ! cabal-is-dummy-lib; then
219 cabal-bootstrap 300 cabal-bootstrap
220 cabal-configure 301 cabal-configure
221 cabal-build 302 cabal-build
222 303
223 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 304 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
224 cabal-haddock 305 cabal-haddock
225 fi 306 fi
307 fi
226} 308}
309
227haskell-cabal_src_compile() { 310haskell-cabal_src_compile() {
228 cabal_src_compile 311 cabal_src_compile
229} 312}
230 313
231# exported function: cabal-style copy and register 314# exported function: cabal-style copy and register
232cabal_src_install() { 315cabal_src_install() {
316 if cabal-is-dummy-lib; then
317 # create a dummy local package conf file for the sake of ghc-updater
318 dodir "$(ghc-confdir)"
319 echo '[]' > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
320 else
233 cabal-copy 321 cabal-copy
234 cabal-pkg 322 cabal-pkg
235 323
236 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 324 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
237 local cabalversion=$(ghc-extractportageversion dev-haskell/cabal)
238 if ! version_is_at_least "1.1.6" "${cabalversion}"; then 325 if ! version_is_at_least "1.1.6" "$(cabal-version)"; then
239 dohtml -r dist/doc/html/* 326 dohtml -r dist/doc/html/*
327 fi
240 fi 328 fi
241 fi 329 fi
242} 330}
243haskell-cabal_src_install() { 331haskell-cabal_src_install() {
244 cabal_src_install 332 cabal_src_install

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