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Revision 1.15 Revision 1.38
1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2013 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 1.15 2009/07/27 19:03:20 kolmodin Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.38 2013/01/06 13:06:35 slyfox Exp $
4# 4
5# @ECLASS: haskell-cabal.eclass
6# @MAINTAINER:
7# Haskell herd <haskell@gentoo.org>
8# @AUTHOR:
5# Original authors: Andres Loeh <kosmikus@gentoo.org> 9# Original author: Andres Loeh <kosmikus@gentoo.org>
6# Duncan Coutts <dcoutts@gentoo.org> 10# Original author: Duncan Coutts <dcoutts@gentoo.org>
7# Maintained by: Haskell herd <haskell@gentoo.org> 11# @BLURB: for packages that make use of the Haskell Common Architecture for Building Applications and Libraries (cabal)
8# 12# @DESCRIPTION:
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: 13# Basic instructions:
14# 14#
15# Before inheriting the eclass, set CABAL_FEATURES to 15# Before inheriting the eclass, set CABAL_FEATURES to
16# reflect the tools and features that the package makes 16# reflect the tools and features that the package makes
17# use of. 17# use of.
18# 18#
19# Currently supported features: 19# Currently supported features:
20# haddock -- for documentation generation 20# haddock -- for documentation generation
21# hscolour -- generation of colourised sources
22# hoogle -- generation of documentation search index
21# alex -- lexer/scanner generator 23# alex -- lexer/scanner generator
22# happy -- parser generator 24# happy -- parser generator
23# c2hs -- C interface generator 25# c2hs -- C interface generator
24# cpphs -- C preprocessor clone written in Haskell 26# cpphs -- C preprocessor clone written in Haskell
25# profile -- if package supports to build profiling-enabled libraries 27# profile -- if package supports to build profiling-enabled libraries
26# bootstrap -- only used for the cabal package itself 28# bootstrap -- only used for the cabal package itself
27# bin -- the package installs binaries 29# bin -- the package installs binaries
28# lib -- the package installs libraries 30# lib -- the package installs libraries
29# 31# nocabaldep -- don't add dependency on cabal.
30# Dependencies on other cabal packages have to be specified 32# only used for packages that _must_ not pull the dependency
31# correctly. 33# on cabal, but still use this eclass (e.g. haskell-updater).
32# 34# test-suite -- add support for cabal test-suites (introduced in Cabal-1.8)
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 35
43inherit ghc-package multilib 36inherit ghc-package multilib
44 37
38# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS
39# @DESCRIPTION:
40# User-specified additional parameters passed to 'setup configure'.
41# example: /etc/make.conf: CABAL_EXTRA_CONFIGURE_FLAGS=--enable-shared
42: ${CABAL_EXTRA_CONFIGURE_FLAGS:=}
43
44# @ECLASS-VARIABLE: CABAL_EXTRA_BUILD_FLAGS
45# @DESCRIPTION:
46# User-specified additional parameters passed to 'setup build'.
47# example: /etc/make.conf: CABAL_EXTRA_BUILD_FLAGS=-v
48: ${CABAL_EXTRA_BUILD_FLAGS:=}
49
50# @ECLASS-VARIABLE: GHC_BOOTSTRAP_FLAGS
51# @DESCRIPTION:
52# User-specified additional parameters for ghc when building
53# _only_ 'setup' binary bootstrap.
54# example: /etc/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make
55# linking 'setup' faster.
56: ${GHC_BOOTSTRAP_FLAGS:=}
57
58# @ECLASS-VARIABLE: CABAL_DEBUG_LOOSENING
59# @DESCRIPTION:
60# Show debug output for 'cabal_chdeps' function if set.
61# Needs working 'diff'.
62: ${CABAL_DEBUG_LOOSENING:=}
63
64HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"
65
66case "${EAPI:-0}" in
67 2|3|4|5) HASKELL_CABAL_EXPF+=" src_configure" ;;
68 *) ;;
69esac
70
71EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
45 72
46for feature in ${CABAL_FEATURES}; do 73for feature in ${CABAL_FEATURES}; do
47 case ${feature} in 74 case ${feature} in
48 haddock) CABAL_USE_HADDOCK=yes;; 75 haddock) CABAL_USE_HADDOCK=yes;;
76 hscolour) CABAL_USE_HSCOLOUR=yes;;
77 hoogle) CABAL_USE_HOOGLE=yes;;
49 alex) CABAL_USE_ALEX=yes;; 78 alex) CABAL_USE_ALEX=yes;;
50 happy) CABAL_USE_HAPPY=yes;; 79 happy) CABAL_USE_HAPPY=yes;;
51 c2hs) CABAL_USE_C2HS=yes;; 80 c2hs) CABAL_USE_C2HS=yes;;
52 cpphs) CABAL_USE_CPPHS=yes;; 81 cpphs) CABAL_USE_CPPHS=yes;;
53 profile) CABAL_USE_PROFILE=yes;; 82 profile) CABAL_USE_PROFILE=yes;;
54 bootstrap) CABAL_BOOTSTRAP=yes;; 83 bootstrap) CABAL_BOOTSTRAP=yes;;
55 bin) CABAL_HAS_BINARIES=yes;; 84 bin) CABAL_HAS_BINARIES=yes;;
56 lib) CABAL_HAS_LIBRARIES=yes;; 85 lib) CABAL_HAS_LIBRARIES=yes;;
86 nocabaldep) CABAL_FROM_GHC=yes;;
87 test-suite) CABAL_TEST_SUITE=yes;;
57 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";; 88 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
58 esac 89 esac
59done 90done
60 91
61if [[ -n "${CABAL_USE_HADDOCK}" ]]; then 92if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
62 IUSE="${IUSE} doc" 93 IUSE="${IUSE} doc"
94 # don't require depend on itself to build docs.
95 # ebuild bootstraps docs from just built binary
96 [[ ${CATEGORY}/${PN} = "dev-haskell/haddock" ]] || DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
97fi
98
99if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then
100 IUSE="${IUSE} hscolour"
63 DEPEND="${DEPEND} doc? ( dev-haskell/haddock )" 101 DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )"
64fi 102fi
65 103
66if [[ -n "${CABAL_USE_ALEX}" ]]; then 104if [[ -n "${CABAL_USE_ALEX}" ]]; then
67 DEPEND="${DEPEND} dev-haskell/alex" 105 DEPEND="${DEPEND} dev-haskell/alex"
68 cabalconf="${cabalconf} --with-alex=/usr/bin/alex"
69fi 106fi
70 107
71if [[ -n "${CABAL_USE_HAPPY}" ]]; then 108if [[ -n "${CABAL_USE_HAPPY}" ]]; then
72 DEPEND="${DEPEND} dev-haskell/happy" 109 DEPEND="${DEPEND} dev-haskell/happy"
73 cabalconf="${cabalconf} --with-happy=/usr/bin/happy"
74fi 110fi
75 111
76if [[ -n "${CABAL_USE_C2HS}" ]]; then 112if [[ -n "${CABAL_USE_C2HS}" ]]; then
77 DEPEND="${DEPEND} dev-haskell/c2hs" 113 DEPEND="${DEPEND} dev-haskell/c2hs"
78 cabalconf="${cabalconf} --with-c2hs=/usr/bin/c2hs"
79fi 114fi
80 115
81if [[ -n "${CABAL_USE_CPPHS}" ]]; then 116if [[ -n "${CABAL_USE_CPPHS}" ]]; then
82 DEPEND="${DEPEND} dev-haskell/cpphs" 117 DEPEND="${DEPEND} dev-haskell/cpphs"
83 cabalconf="${cabalconf} --with-cpphs=/usr/bin/cpphs"
84fi 118fi
85 119
86if [[ -n "${CABAL_USE_PROFILE}" ]]; then 120if [[ -n "${CABAL_USE_PROFILE}" ]]; then
87 IUSE="${IUSE} profile" 121 IUSE="${IUSE} profile"
122fi
123
124if [[ -n "${CABAL_TEST_SUITE}" ]]; then
125 IUSE="${IUSE} test"
88fi 126fi
89 127
90# We always use a standalone version of Cabal, rather than the one that comes 128# 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. 129# with GHC. But of course we can't depend on cabal when building cabal itself.
92if [[ -z ${CABAL_MIN_VERSION} ]]; then 130if [[ -z ${CABAL_MIN_VERSION} ]]; then
93 CABAL_MIN_VERSION=1.1.4 131 CABAL_MIN_VERSION=1.1.4
94fi 132fi
95if [[ -z "${CABAL_BOOTSTRAP}" ]]; then 133if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then
96 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}" 134 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
97fi
98
99# Libraries require GHC to be installed.
100if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then
101 RDEPEND="${RDEPEND} dev-lang/ghc"
102fi 135fi
103 136
104# returns the version of cabal currently in use 137# returns the version of cabal currently in use
105_CABAL_VERSION_CACHE="" 138_CABAL_VERSION_CACHE=""
106cabal-version() { 139cabal-version() {
107 if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then 140 if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
108 if [[ "${CABAL_BOOTSTRAP}" ]]; then 141 if [[ "${CABAL_BOOTSTRAP}" ]]; then
109 # We're bootstrapping cabal, so the cabal version is the version 142 # We're bootstrapping cabal, so the cabal version is the version
110 # of this package itself. 143 # of this package itself.
111 _CABAL_VERSION_CACHE="${PV}" 144 _CABAL_VERSION_CACHE="${PV}"
145 elif [[ "${CABAL_FROM_GHC}" ]]; then
146 local cabal_package=$(echo "$(ghc-libdir)"/Cabal-*)
147 # /path/to/ghc/Cabal-${VER} -> ${VER}
148 _CABAL_VERSION_CACHE="${cabal_package/*Cabal-/}"
112 else 149 else
113 # We ask portage, not ghc, so that we only pick up 150 # We ask portage, not ghc, so that we only pick up
114 # portage-installed cabal versions. 151 # portage-installed cabal versions.
115 _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)" 152 _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
116 fi 153 fi
121cabal-bootstrap() { 158cabal-bootstrap() {
122 local setupmodule 159 local setupmodule
123 local cabalpackage 160 local cabalpackage
124 if [[ -f "${S}/Setup.lhs" ]]; then 161 if [[ -f "${S}/Setup.lhs" ]]; then
125 setupmodule="${S}/Setup.lhs" 162 setupmodule="${S}/Setup.lhs"
163 elif [[ -f "${S}/Setup.hs" ]]; then
164 setupmodule="${S}/Setup.hs"
126 else 165 else
127 if [[ -f "${S}/Setup.hs" ]]; then
128 setupmodule="${S}/Setup.hs"
129 else
130 die "No Setup.lhs or Setup.hs found" 166 die "No Setup.lhs or Setup.hs found"
131 fi 167 fi
168
169 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
170 eerror "The package dev-haskell/cabal is not correctly installed for"
171 eerror "the currently active version of ghc ($(ghc-version)). Please"
172 eerror "run haskell-updater or re-build dev-haskell/cabal."
173 die "cabal is not correctly installed"
132 fi 174 fi
133 175
134 # We build the setup program using the latest version of 176 # We build the setup program using the latest version of
135 # cabal that we have installed 177 # cabal that we have installed
136 if version_is_at_least "6.4" "$(ghc-version)"; then
137 cabalpackage=Cabal-$(cabal-version) 178 cabalpackage=Cabal-$(cabal-version)
179 einfo "Using cabal-$(cabal-version)."
180
181 make_setup() {
182 set -- -package "${cabalpackage}" --make "${setupmodule}" \
183 ${GHC_BOOTSTRAP_FLAGS} \
184 "$@" \
185 -o setup
186 echo $(ghc-getghc) ${HCFLAGS} "$@"
187 $(ghc-getghc) "$@"
188 }
189 if $(ghc-supports-shared-libraries); then
190 # # some custom build systems might use external libraries,
191 # # for which we don't have shared libs, so keep static fallback
192 # bug #411789, http://hackage.haskell.org/trac/ghc/ticket/5743#comment:3
193 # http://hackage.haskell.org/trac/ghc/ticket/7062
194 # http://hackage.haskell.org/trac/ghc/ticket/3072
195 # ghc does not set RPATH for extralibs, thus we do it ourselves by hands
196 einfo "Prepending $(ghc-libdir) to LD_LIBRARY_PATH"
197 if [[ ${CHOST} != *-darwin* ]]; then
198 LD_LIBRARY_PATH="$(ghc-libdir)${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}"
199 export LD_LIBRARY_PATH
200 else
201 DYLD_LIBRARY_PATH="$(ghc-libdir)${DYLD_LIBRARY_PATH:+:}${DYLD_LIBRARY_PATH}"
202 export DYLD_LIBRARY_PATH
203 fi
204 { make_setup -dynamic "$@" && ./setup --help >/dev/null; } ||
205 make_setup "$@" || die "compiling ${setupmodule} failed"
138 else 206 else
139 # older ghc's don't support package versioning
140 cabalpackage=Cabal
141 fi
142 einfo "Using cabal-$(cabal-version)."
143 $(ghc-getghc) -package "${cabalpackage}" --make "${setupmodule}" -o setup \
144 || die "compiling ${setupmodule} failed" 207 make_setup "$@" || die "compiling ${setupmodule} failed"
208 fi
145} 209}
146 210
147cabal-mksetup() { 211cabal-mksetup() {
148 local setupdir 212 local setupdir
149 213
154 fi 218 fi
155 219
156 rm -f "${setupdir}"/Setup.{lhs,hs} 220 rm -f "${setupdir}"/Setup.{lhs,hs}
157 221
158 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \ 222 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
159 > $setupdir/Setup.hs 223 > $setupdir/Setup.hs || die "failed to create default Setup.hs"
224}
225
226cabal-hscolour() {
227 set -- hscolour "$@"
228 echo ./setup "$@"
229 ./setup "$@" || die "setup hscolour failed"
160} 230}
161 231
162cabal-haddock() { 232cabal-haddock() {
163 ./setup haddock || die "setup haddock failed" 233 set -- haddock "$@"
234 echo ./setup "$@"
235 ./setup "$@" || die "setup haddock failed"
236}
237
238cabal-hscolour-haddock() {
239 # --hyperlink-source implies calling 'setup hscolour'
240 set -- haddock --hyperlink-source
241 echo ./setup "$@"
242 ./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed"
164} 243}
165 244
166cabal-configure() { 245cabal-configure() {
246 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
247
167 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 248 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
168 cabalconf="${cabalconf} --with-haddock=/usr/bin/haddock" 249 cabalconf="${cabalconf} --with-haddock=${EPREFIX}/usr/bin/haddock"
169 fi 250 fi
170 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then 251 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
171 cabalconf="${cabalconf} --enable-library-profiling" 252 cabalconf="${cabalconf} --enable-library-profiling"
172 fi 253 fi
254 if [[ -n "${CABAL_USE_ALEX}" ]]; then
255 cabalconf="${cabalconf} --with-alex=${EPREFIX}/usr/bin/alex"
256 fi
257
258 if [[ -n "${CABAL_USE_HAPPY}" ]]; then
259 cabalconf="${cabalconf} --with-happy=${EPREFIX}/usr/bin/happy"
260 fi
261
262 if [[ -n "${CABAL_USE_C2HS}" ]]; then
263 cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs"
264 fi
265 if [[ -n "${CABAL_USE_CPPHS}" ]]; then
266 cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs"
267 fi
268 if [[ -n "${CABAL_TEST_SUITE}" ]]; then
269 cabalconf="${cabalconf} $(use_enable test tests)"
270 fi
271
272 local option
273 for option in ${HCFLAGS}
274 do
275 cabalconf+=" --ghc-option=$option"
276 done
277
173 # Building GHCi libs on ppc64 causes "TOC overflow". 278 # Building GHCi libs on ppc64 causes "TOC overflow".
174 if use ppc64; then 279 if use ppc64; then
175 cabalconf="${cabalconf} --disable-library-for-ghci" 280 cabalconf="${cabalconf} --disable-library-for-ghci"
176 fi 281 fi
177 282
178 if version_is_at_least "1.2.0" "$(cabal-version)"; then 283 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
284 # so translate LDFLAGS to ghc parameters (without filtering)
285 local flag
286 for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done
287
288 # disable executable stripping for the executables, as portage will
289 # strip by itself, and pre-stripping gives a QA warning.
290 # cabal versions previous to 1.4 does not strip executables, and does
291 # not accept the flag.
292 # this fixes numerous bugs, amongst them;
293 # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
294 cabalconf="${cabalconf} --disable-executable-stripping"
295
179 cabalconf="${cabalconf} --docdir=/usr/share/doc/${PF}" 296 cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}"
180 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes 297 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
181 # it's better if the configure chatter is in the build logs: 298 # it's better if the configure chatter is in the build logs:
182 cabalconf="${cabalconf} --verbose" 299 cabalconf="${cabalconf} --verbose"
300
301 # We build shared version of our Cabal where ghc ships it's shared
302 # version of it. We will link ./setup as dynamic binary againt Cabal later.
303 [[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
304 $(ghc-supports-shared-libraries) && \
305 cabalconf="${cabalconf} --enable-shared"
306
307 if $(ghc-supports-shared-libraries); then
308 # maybe a bit lower
309 if version_is_at_least "7.7.20121114" "$(ghc-version)"; then
310 cabalconf="${cabalconf} --enable-shared"
183 fi 311 fi
184 # Note: with Cabal-1.1.6.x we do not have enough control 312 fi
185 # to put the docs into the right place. They're currently going
186 # into /usr/share/${P}/ghc-x.y/doc/
187 # rather than /usr/share/doc/${PF}/
188 # Because we can only set the datadir, not the docdir.
189 313
190 ./setup configure \ 314 set -- configure \
191 --ghc --prefix=/usr \ 315 --ghc --prefix="${EPREFIX}"/usr \
192 --with-compiler="$(ghc-getghc)" \ 316 --with-compiler="$(ghc-getghc)" \
193 --with-hc-pkg="$(ghc-getghcpkg)" \ 317 --with-hc-pkg="$(ghc-getghcpkg)" \
194 --prefix=/usr \ 318 --prefix="${EPREFIX}"/usr \
195 --libdir=/usr/$(get_libdir) \ 319 --libdir="${EPREFIX}"/usr/$(get_libdir) \
196 --libsubdir=${P}/ghc-$(ghc-version) \ 320 --libsubdir=${P}/ghc-$(ghc-version) \
197 --datadir=/usr/share/ \ 321 --datadir="${EPREFIX}"/usr/share/ \
198 --datasubdir=${P}/ghc-$(ghc-version) \ 322 --datasubdir=${P}/ghc-$(ghc-version) \
199 ${cabalconf} \ 323 ${cabalconf} \
200 ${CABAL_CONFIGURE_FLAGS} \ 324 ${CABAL_CONFIGURE_FLAGS} \
325 ${CABAL_EXTRA_CONFIGURE_FLAGS} \
326 "$@"
327 echo ./setup "$@"
201 "$@" || die "setup configure failed" 328 ./setup "$@" || die "setup configure failed"
202} 329}
203 330
204cabal-build() { 331cabal-build() {
205 unset LANG LC_ALL LC_MESSAGES 332 unset LANG LC_ALL LC_MESSAGES
206 ./setup build \ 333 set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@"
334 echo ./setup "$@"
335 ./setup "$@" \
207 || die "setup build failed" 336 || die "setup build failed"
208} 337}
209 338
210cabal-copy() { 339cabal-copy() {
211 ./setup copy \ 340 has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D}
212 --destdir="${D}" \ 341
342 set -- copy --destdir="${D}" "$@"
343 echo ./setup "$@"
213 || die "setup copy failed" 344 ./setup "$@" || die "setup copy failed"
214 345
215 # cabal is a bit eager about creating dirs, 346 # cabal is a bit eager about creating dirs,
216 # so remove them if they are empty 347 # so remove them if they are empty
217 rmdir "${D}/usr/bin" 2> /dev/null 348 rmdir "${ED}/usr/bin" 2> /dev/null
218
219 # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
220 # no workaround.
221 # set the +x permission on executables
222 if [[ -d "${D}/usr/bin" ]] ; then
223 chmod +x "${D}/usr/bin/"*
224 fi
225 # TODO: do we still need this?
226} 349}
227 350
228cabal-pkg() { 351cabal-pkg() {
229 # This does not actually register since we're using true instead 352 # 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 353 # of ghc-pkg. So it just leaves the .conf file and we can
231 # register that ourselves (if it exists). 354 # register that ourselves (if it exists).
232 local result
233 local err
234 355
235 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then 356 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: 357 # Newer cabal can generate a package conf for us:
238 ./setup register --gen-pkg-config="${T}/${P}.conf" 358 ./setup register --gen-pkg-config="${T}/${P}.conf"
239 ghc-setup-pkg "${T}/${P}.conf" 359 ghc-setup-pkg "${T}/${P}.conf"
240 ghc-install-pkg 360 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 361 fi
255} 362}
256 363
257# Some cabal libs are bundled along with some versions of ghc 364# Some cabal libs are bundled along with some versions of ghc
258# eg filepath-1.0 comes with ghc-6.6.1 365# eg filepath-1.0 comes with ghc-6.6.1
262# However portage still records the dependency and we can upgrade the package 369# However portage still records the dependency and we can upgrade the package
263# to a later one that's not included with ghc. 370# 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". 371# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
265cabal-is-dummy-lib() { 372cabal-is-dummy-lib() {
266 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do 373 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
267 [[ "$(ghc-version)" == "$version" ]] && return 0 374 [[ "$(ghc-version)" == ${version} ]] && return 0
268 done 375 done
269 return 1 376 return 1
270} 377}
271 378
272# exported function: check if cabal is correctly installed for 379# exported function: check if cabal is correctly installed for
273# the currently active ghc (we cannot guarantee this with portage) 380# the currently active ghc (we cannot guarantee this with portage)
274haskell-cabal_pkg_setup() { 381haskell-cabal_pkg_setup() {
275 ghc-package_pkg_setup 382 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
276 if [[ -z "${CABAL_BOOTSTRAP}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then 383 [[ ${RDEPEND} == *dev-lang/ghc* ]] || eqawarn "QA Notice: A library does not have runtime dependency on dev-lang/ghc."
277 eerror "The package dev-haskell/cabal is not correctly installed for"
278 eerror "the currently active version of ghc ($(ghc-version)). Please"
279 eerror "run ghc-updater or re-emerge dev-haskell/cabal."
280 die "cabal is not correctly installed"
281 fi 384 fi
282 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then 385 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
283 eerror "QA: Neither bin nor lib are in CABAL_FEATURES." 386 eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES."
284 fi 387 fi
285 if [[ -n "${CABAL_UNKNOWN}" ]]; then 388 if [[ -n "${CABAL_UNKNOWN}" ]]; then
286 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}" 389 eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
287 fi 390 fi
288 if cabal-is-dummy-lib; then 391 if cabal-is-dummy-lib; then
289 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install." 392 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
290 fi 393 fi
291} 394}
292 395
396haskell-cabal_src_configure() {
397 cabal-is-dummy-lib && return
398
399 pushd "${S}" > /dev/null
400
401 cabal-bootstrap
402
403 cabal-configure "$@"
404
405 popd > /dev/null
406}
407
408# exported function: nice alias
409cabal_src_configure() {
410 haskell-cabal_src_configure "$@"
411}
412
293# exported function: cabal-style bootstrap configure and compile 413# exported function: cabal-style bootstrap configure and compile
294cabal_src_compile() { 414cabal_src_compile() {
295 if ! cabal-is-dummy-lib; then 415 # it's a common mistake when one bumps ebuild to EAPI="2" (and upper)
296 cabal-bootstrap 416 # and forgets to separate src_compile() to src_configure()/src_compile().
297 cabal-configure 417 # Such error leads to default src_configure and we lose all passed flags.
418 if ! has "${EAPI:-0}" 0 1; then
419 local passed_flag
420 for passed_flag in "$@"; do
421 [[ ${passed_flag} == --flags=* ]] && \
422 eqawarn "QA Notice: Cabal option '${passed_flag}' has effect only in src_configure()"
423 done
424 fi
425
426 cabal-is-dummy-lib && return
427
428 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
298 cabal-build 429 cabal-build
299 430
300 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 431 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
432 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
433 # hscolour and haddock
434 cabal-hscolour-haddock
435 else
436 # just haddock
301 cabal-haddock 437 cabal-haddock
302 fi 438 fi
439 else
440 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
441 # just hscolour
442 cabal-hscolour
303 fi 443 fi
444 fi
304} 445}
446
305haskell-cabal_src_compile() { 447haskell-cabal_src_compile() {
448 pushd "${S}" > /dev/null
449
306 cabal_src_compile 450 cabal_src_compile "$@"
451
452 popd > /dev/null
453}
454
455haskell-cabal_src_test() {
456 pushd "${S}" > /dev/null
457
458 if cabal-is-dummy-lib; then
459 einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
460 else
461 einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
462 set -- test "$@"
463 echo ./setup "$@"
464 ./setup "$@" || die "cabal test failed"
465 fi
466
467 popd > /dev/null
307} 468}
308 469
309# exported function: cabal-style copy and register 470# exported function: cabal-style copy and register
310cabal_src_install() { 471cabal_src_install() {
472 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
473
311 if cabal-is-dummy-lib; then 474 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 475 cabal-copy
317 cabal-pkg 476 cabal-pkg
477 fi
318 478
319 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 479 # create a dummy local package conf file for haskell-updater
320 if ! version_is_at_least "1.1.6" "$(cabal-version)"; then 480 # if it does not exist (dummy libraries and binaries w/o libraries)
321 dohtml -r dist/doc/html/* 481 local ghc_confdir_with_prefix="$(ghc-confdir)"
482 # remove EPREFIX
483 dodir ${ghc_confdir_with_prefix#${EPREFIX}}
484 local conf_file="${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
485 [[ -e $conf_file ]] || echo '[]' > "$conf_file" || die
486
487 # make sure installed packages do not destroy ghc's
488 # bundled packages
489 local initial_pkg_db=${ROOT}/$(ghc-libdir)/package.conf.d.initial
490 if [[ -e ${initial_pkg_db} ]]; then
491 local checked_pkg
492 for checked_pkg in $(ghc-listpkg "${conf_file}")
493 do
494 local initial_pkg
495 for initial_pkg in $(ghc-listpkg "${initial_pkg_db}"); do
496 if [[ ${checked_pkg} = ${initial_pkg} ]]; then
497 eerror "Package ${checked_pkg} is shipped with $(ghc-version)."
498 eerror "Ebuild author forgot CABAL_CORE_LIB_GHC_PV entry."
499 eerror "Found in ${initial_pkg_db}."
500 die
322 fi 501 fi
502 done
503 done
504 fi
505}
506
507haskell-cabal_src_install() {
508 pushd "${S}" > /dev/null
509
510 cabal_src_install
511
512 popd > /dev/null
513}
514
515# @FUNCTION: cabal_flag
516# @DESCRIPTION:
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#
527cabal_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}
544
545# @FUNCTION: cabal_chdeps
546# @DESCRIPTION:
547# Allows easier patching of $CABAL_FILE (${S}/${PN}.cabal by default)
548# depends
549#
550# Accepts argument list as pairs of substitutions: <from-string> <to-string>...
551#
552# Dies on error.
553#
554# Usage examples:
555#
556# src_prepare() {
557# cabal_chdeps \
558# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7' \
559# 'containers ==0.4.*' 'containers >= 0.4 && < 0.6'
560#}
561# or
562# src_prepare() {
563# CABAL_FILE=${S}/${MY_PN}.cabal cabal_chdeps \
564# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7'
565# CABAL_FILE=${S}/${MY_PN}-tools.cabal cabal_chdeps \
566# 'base == 3.*' 'base >= 4.2 && < 4.7'
567#}
568#
569cabal_chdeps() {
570 local cf=${CABAL_FILE:-${S}/${PN}.cabal}
571 local from_ss # ss - substring
572 local to_ss
573 local orig_c # c - contents
574 local new_c
575
576 [[ -f $cf ]] || die "cabal file '$cf' does not exist"
577
578 orig_c=$(< "$cf")
579
580 while :; do
581 from_pat=$1
582 to_str=$2
583
584 [[ -n ${from_pat} ]] || break
585 [[ -n ${to_str} ]] || die "'${from_str}' does not have 'to' part"
586
587 einfo "CHDEP: '${from_pat}' -> '${to_str}'"
588
589 # escape pattern-like symbols
590 from_pat=${from_pat//\*/\\*}
591 from_pat=${from_pat//\[/\\[}
592
593 new_c=${orig_c//${from_pat}/${to_str}}
594
595 if [[ -n $CABAL_DEBUG_LOOSENING ]]; then
596 echo "${orig_c}" >"${T}/${cf}".pre
597 echo "${new_c}" >"${T}/${cf}".post
598 diff -u "${T}/${cf}".{pre,post}
323 fi 599 fi
324 fi
325}
326haskell-cabal_src_install() {
327 cabal_src_install
328}
329 600
330EXPORT_FUNCTIONS pkg_setup src_compile src_install 601 [[ "${orig_c}" == "${new_c}" ]] && die "no trigger for '${from_pat}'"
602 orig_c=${new_c}
603 shift
604 shift
605 done
606
607 echo "${new_c}" > "$cf" ||
608 die "failed to update"
609}

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