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Revision 1.15 - (show annotations) (download)
Mon Jul 27 19:03:20 2009 UTC (5 years, 2 months ago) by kolmodin
Branch: MAIN
Changes since 1.14: +2 -2 lines
Fix (kind of harmless) typo in haskell-cabal eclass. $CABAL_UNKNONW -> $CABAL_UNKNOWN.

1 # Copyright 1999-2006 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.14 2007/12/13 04:44:39 dcoutts Exp $
4 #
5 # Original authors: Andres Loeh <kosmikus@gentoo.org>
6 # Duncan Coutts <dcoutts@gentoo.org>
7 # Maintained by: Haskell herd <haskell@gentoo.org>
8 #
9 # This eclass is for packages that make use of the
10 # Haskell Common Architecture for Building Applications
11 # and Libraries (cabal).
12 #
13 # Basic instructions:
14 #
15 # Before inheriting the eclass, set CABAL_FEATURES to
16 # reflect the tools and features that the package makes
17 # use of.
18 #
19 # Currently supported features:
20 # haddock -- for documentation generation
21 # alex -- lexer/scanner generator
22 # happy -- parser generator
23 # c2hs -- C interface generator
24 # cpphs -- C preprocessor clone written in Haskell
25 # profile -- if package supports to build profiling-enabled libraries
26 # bootstrap -- only used for the cabal package itself
27 # bin -- the package installs binaries
28 # lib -- the package installs libraries
29 #
30 # Dependencies on other cabal packages have to be specified
31 # correctly.
32 #
33 # Cabal libraries should usually be SLOTted with "${PV}".
34 #
35 # Many Cabal packages require S to be manually set.
36 #
37 # Conforming Cabal packages don't require any function definitions
38 # in the ebuild.
39 #
40 # Special flags to Cabal Configure can now be set by using
41 # CABAL_CONFIGURE_FLAGS
42
43 inherit ghc-package multilib
44
45
46 for feature in ${CABAL_FEATURES}; do
47 case ${feature} in
48 haddock) CABAL_USE_HADDOCK=yes;;
49 alex) CABAL_USE_ALEX=yes;;
50 happy) CABAL_USE_HAPPY=yes;;
51 c2hs) CABAL_USE_C2HS=yes;;
52 cpphs) CABAL_USE_CPPHS=yes;;
53 profile) CABAL_USE_PROFILE=yes;;
54 bootstrap) CABAL_BOOTSTRAP=yes;;
55 bin) CABAL_HAS_BINARIES=yes;;
56 lib) CABAL_HAS_LIBRARIES=yes;;
57 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
58 esac
59 done
60
61 if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
62 IUSE="${IUSE} doc"
63 DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
64 fi
65
66 if [[ -n "${CABAL_USE_ALEX}" ]]; then
67 DEPEND="${DEPEND} dev-haskell/alex"
68 cabalconf="${cabalconf} --with-alex=/usr/bin/alex"
69 fi
70
71 if [[ -n "${CABAL_USE_HAPPY}" ]]; then
72 DEPEND="${DEPEND} dev-haskell/happy"
73 cabalconf="${cabalconf} --with-happy=/usr/bin/happy"
74 fi
75
76 if [[ -n "${CABAL_USE_C2HS}" ]]; then
77 DEPEND="${DEPEND} dev-haskell/c2hs"
78 cabalconf="${cabalconf} --with-c2hs=/usr/bin/c2hs"
79 fi
80
81 if [[ -n "${CABAL_USE_CPPHS}" ]]; then
82 DEPEND="${DEPEND} dev-haskell/cpphs"
83 cabalconf="${cabalconf} --with-cpphs=/usr/bin/cpphs"
84 fi
85
86 if [[ -n "${CABAL_USE_PROFILE}" ]]; then
87 IUSE="${IUSE} profile"
88 fi
89
90 # We always use a standalone version of Cabal, rather than the one that comes
91 # with GHC. But of course we can't depend on cabal when building cabal itself.
92 if [[ -z ${CABAL_MIN_VERSION} ]]; then
93 CABAL_MIN_VERSION=1.1.4
94 fi
95 if [[ -z "${CABAL_BOOTSTRAP}" ]]; then
96 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
97 fi
98
99 # Libraries require GHC to be installed.
100 if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then
101 RDEPEND="${RDEPEND} dev-lang/ghc"
102 fi
103
104 # returns the version of cabal currently in use
105 _CABAL_VERSION_CACHE=""
106 cabal-version() {
107 if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
108 if [[ "${CABAL_BOOTSTRAP}" ]]; then
109 # We're bootstrapping cabal, so the cabal version is the version
110 # of this package itself.
111 _CABAL_VERSION_CACHE="${PV}"
112 else
113 # We ask portage, not ghc, so that we only pick up
114 # portage-installed cabal versions.
115 _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
116 fi
117 fi
118 echo "${_CABAL_VERSION_CACHE}"
119 }
120
121 cabal-bootstrap() {
122 local setupmodule
123 local cabalpackage
124 if [[ -f "${S}/Setup.lhs" ]]; then
125 setupmodule="${S}/Setup.lhs"
126 else
127 if [[ -f "${S}/Setup.hs" ]]; then
128 setupmodule="${S}/Setup.hs"
129 else
130 die "No Setup.lhs or Setup.hs found"
131 fi
132 fi
133
134 # We build the setup program using the latest version of
135 # cabal that we have installed
136 if version_is_at_least "6.4" "$(ghc-version)"; then
137 cabalpackage=Cabal-$(cabal-version)
138 else
139 # older ghc's don't support package versioning
140 cabalpackage=Cabal
141 fi
142 einfo "Using cabal-$(cabal-version)."
143 $(ghc-getghc) -package "${cabalpackage}" --make "${setupmodule}" -o setup \
144 || die "compiling ${setupmodule} failed"
145 }
146
147 cabal-mksetup() {
148 local setupdir
149
150 if [[ -n $1 ]]; then
151 setupdir=$1
152 else
153 setupdir=${S}
154 fi
155
156 rm -f "${setupdir}"/Setup.{lhs,hs}
157
158 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
159 > $setupdir/Setup.hs
160 }
161
162 cabal-haddock() {
163 ./setup haddock || die "setup haddock failed"
164 }
165
166 cabal-configure() {
167 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
168 cabalconf="${cabalconf} --with-haddock=/usr/bin/haddock"
169 fi
170 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
171 cabalconf="${cabalconf} --enable-library-profiling"
172 fi
173 # Building GHCi libs on ppc64 causes "TOC overflow".
174 if use ppc64; then
175 cabalconf="${cabalconf} --disable-library-for-ghci"
176 fi
177
178 if version_is_at_least "1.2.0" "$(cabal-version)"; then
179 cabalconf="${cabalconf} --docdir=/usr/share/doc/${PF}"
180 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
181 # it's better if the configure chatter is in the build logs:
182 cabalconf="${cabalconf} --verbose"
183 fi
184 # Note: with Cabal-1.1.6.x we do not have enough control
185 # to put the docs into the right place. They're currently going
186 # into /usr/share/${P}/ghc-x.y/doc/
187 # rather than /usr/share/doc/${PF}/
188 # Because we can only set the datadir, not the docdir.
189
190 ./setup configure \
191 --ghc --prefix=/usr \
192 --with-compiler="$(ghc-getghc)" \
193 --with-hc-pkg="$(ghc-getghcpkg)" \
194 --prefix=/usr \
195 --libdir=/usr/$(get_libdir) \
196 --libsubdir=${P}/ghc-$(ghc-version) \
197 --datadir=/usr/share/ \
198 --datasubdir=${P}/ghc-$(ghc-version) \
199 ${cabalconf} \
200 ${CABAL_CONFIGURE_FLAGS} \
201 "$@" || die "setup configure failed"
202 }
203
204 cabal-build() {
205 unset LANG LC_ALL LC_MESSAGES
206 ./setup build \
207 || die "setup build failed"
208 }
209
210 cabal-copy() {
211 ./setup copy \
212 --destdir="${D}" \
213 || die "setup copy failed"
214
215 # cabal is a bit eager about creating dirs,
216 # so remove them if they are empty
217 rmdir "${D}/usr/bin" 2> /dev/null
218
219 # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
220 # no workaround.
221 # set the +x permission on executables
222 if [[ -d "${D}/usr/bin" ]] ; then
223 chmod +x "${D}/usr/bin/"*
224 fi
225 # TODO: do we still need this?
226 }
227
228 cabal-pkg() {
229 # This does not actually register since we're using true instead
230 # of ghc-pkg. So it just leaves the .installed-pkg-config and we can
231 # register that ourselves (if it exists).
232 local result
233 local err
234
235 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
236 if version_is_at_least "1.2.0" "$(cabal-version)"; then
237 # Newer cabal can generate a package conf for us:
238 ./setup register --gen-pkg-config="${T}/${P}.conf"
239 ghc-setup-pkg "${T}/${P}.conf"
240 ghc-install-pkg
241 else
242 # With older cabal we have to hack it by replacing its ghc-pkg
243 # with true and then just picking up the .installed-pkg-config
244 # file and registering that ourselves (if it exists).
245 sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config
246 ./setup register || die "setup register failed"
247 if [[ -f .installed-pkg-config ]]; then
248 ghc-setup-pkg .installed-pkg-config
249 ghc-install-pkg
250 else
251 die "setup register has not generated a package configuration file"
252 fi
253 fi
254 fi
255 }
256
257 # Some cabal libs are bundled along with some versions of ghc
258 # eg filepath-1.0 comes with ghc-6.6.1
259 # by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
260 # when building with this version of ghc, the ebuild is a dummy that is it will
261 # install no files since the package is already included with ghc.
262 # However portage still records the dependency and we can upgrade the package
263 # to a later one that's not included with ghc.
264 # You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
265 cabal-is-dummy-lib() {
266 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
267 [[ "$(ghc-version)" == "$version" ]] && return 0
268 done
269 return 1
270 }
271
272 # exported function: check if cabal is correctly installed for
273 # the currently active ghc (we cannot guarantee this with portage)
274 haskell-cabal_pkg_setup() {
275 ghc-package_pkg_setup
276 if [[ -z "${CABAL_BOOTSTRAP}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
277 eerror "The package dev-haskell/cabal is not correctly installed for"
278 eerror "the currently active version of ghc ($(ghc-version)). Please"
279 eerror "run ghc-updater or re-emerge dev-haskell/cabal."
280 die "cabal is not correctly installed"
281 fi
282 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
283 eerror "QA: Neither bin nor lib are in CABAL_FEATURES."
284 fi
285 if [[ -n "${CABAL_UNKNOWN}" ]]; then
286 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
287 fi
288 if cabal-is-dummy-lib; then
289 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
290 fi
291 }
292
293 # exported function: cabal-style bootstrap configure and compile
294 cabal_src_compile() {
295 if ! cabal-is-dummy-lib; then
296 cabal-bootstrap
297 cabal-configure
298 cabal-build
299
300 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
301 cabal-haddock
302 fi
303 fi
304 }
305 haskell-cabal_src_compile() {
306 cabal_src_compile
307 }
308
309 # exported function: cabal-style copy and register
310 cabal_src_install() {
311 if cabal-is-dummy-lib; then
312 # create a dummy local package conf file for the sake of ghc-updater
313 dodir "$(ghc-confdir)"
314 echo '[]' > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
315 else
316 cabal-copy
317 cabal-pkg
318
319 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
320 if ! version_is_at_least "1.1.6" "$(cabal-version)"; then
321 dohtml -r dist/doc/html/*
322 fi
323 fi
324 fi
325 }
326 haskell-cabal_src_install() {
327 cabal_src_install
328 }
329
330 EXPORT_FUNCTIONS pkg_setup src_compile src_install

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