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Revision 1.23 Revision 1.36
1# Copyright 1999-2011 Gentoo Foundation 1# Copyright 1999-2012 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 1.23 2011/03/13 20:15:14 slyfox Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.36 2012/11/19 20:35:16 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 21# hscolour -- generation of colourised sources
22# hoogle -- generation of documentation search index
22# alex -- lexer/scanner generator 23# alex -- lexer/scanner generator
23# happy -- parser generator 24# happy -- parser generator
24# c2hs -- C interface generator 25# c2hs -- C interface generator
25# cpphs -- C preprocessor clone written in Haskell 26# cpphs -- C preprocessor clone written in Haskell
26# profile -- if package supports to build profiling-enabled libraries 27# profile -- if package supports to build profiling-enabled libraries
28# bin -- the package installs binaries 29# bin -- the package installs binaries
29# lib -- the package installs libraries 30# lib -- the package installs libraries
30# nocabaldep -- don't add dependency on cabal. 31# nocabaldep -- don't add dependency on cabal.
31# only used for packages that _must_ not pull the dependency 32# only used for packages that _must_ not pull the dependency
32# on cabal, but still use this eclass (e.g. haskell-updater). 33# on cabal, but still use this eclass (e.g. haskell-updater).
33# 34# test-suite -- add support for cabal test-suites (introduced in Cabal-1.8)
34# Dependencies on other cabal packages have to be specified
35# correctly.
36#
37# Cabal libraries should usually be SLOTted with "${PV}".
38#
39# Many Cabal packages require S to be manually set.
40#
41# Conforming Cabal packages don't require any function definitions
42# in the ebuild.
43#
44# Special flags to Cabal Configure can now be set by using
45# CABAL_CONFIGURE_FLAGS
46 35
47inherit ghc-package multilib 36inherit ghc-package multilib
48 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: ${CABAL_DEBUG_LOOSENING:=}
63
49HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install" 64HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"
50 65
51case "${EAPI:-0}" in 66case "${EAPI:-0}" in
52 2|3|4) HASKELL_CABAL_EXPF+=" src_configure" ;; 67 2|3|4|5) HASKELL_CABAL_EXPF+=" src_configure" ;;
53 *) ;; 68 *) ;;
54esac 69esac
55 70
56EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF} 71EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
57 72
58for feature in ${CABAL_FEATURES}; do 73for feature in ${CABAL_FEATURES}; do
59 case ${feature} in 74 case ${feature} in
60 haddock) CABAL_USE_HADDOCK=yes;; 75 haddock) CABAL_USE_HADDOCK=yes;;
61 hscolour) CABAL_USE_HSCOLOUR=yes;; 76 hscolour) CABAL_USE_HSCOLOUR=yes;;
77 hoogle) CABAL_USE_HOOGLE=yes;;
62 alex) CABAL_USE_ALEX=yes;; 78 alex) CABAL_USE_ALEX=yes;;
63 happy) CABAL_USE_HAPPY=yes;; 79 happy) CABAL_USE_HAPPY=yes;;
64 c2hs) CABAL_USE_C2HS=yes;; 80 c2hs) CABAL_USE_C2HS=yes;;
65 cpphs) CABAL_USE_CPPHS=yes;; 81 cpphs) CABAL_USE_CPPHS=yes;;
66 profile) CABAL_USE_PROFILE=yes;; 82 profile) CABAL_USE_PROFILE=yes;;
67 bootstrap) CABAL_BOOTSTRAP=yes;; 83 bootstrap) CABAL_BOOTSTRAP=yes;;
68 bin) CABAL_HAS_BINARIES=yes;; 84 bin) CABAL_HAS_BINARIES=yes;;
69 lib) CABAL_HAS_LIBRARIES=yes;; 85 lib) CABAL_HAS_LIBRARIES=yes;;
70 nocabaldep) CABAL_FROM_GHC=yes;; 86 nocabaldep) CABAL_FROM_GHC=yes;;
87 test-suite) CABAL_TEST_SUITE=yes;;
71 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";; 88 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
72 esac 89 esac
73done 90done
74 91
75if [[ -n "${CABAL_USE_HADDOCK}" ]]; then 92if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
76 IUSE="${IUSE} doc" 93 IUSE="${IUSE} doc"
77 DEPEND="${DEPEND} doc? ( dev-haskell/haddock )" 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="${DEPEND} doc? ( dev-haskell/haddock )"
78fi 97fi
79 98
80if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then 99if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then
81 IUSE="${IUSE} hscolour" 100 IUSE="${IUSE} hscolour"
82 DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )" 101 DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )"
98 DEPEND="${DEPEND} dev-haskell/cpphs" 117 DEPEND="${DEPEND} dev-haskell/cpphs"
99fi 118fi
100 119
101if [[ -n "${CABAL_USE_PROFILE}" ]]; then 120if [[ -n "${CABAL_USE_PROFILE}" ]]; then
102 IUSE="${IUSE} profile" 121 IUSE="${IUSE} profile"
122fi
123
124if [[ -n "${CABAL_TEST_SUITE}" ]]; then
125 IUSE="${IUSE} test"
103fi 126fi
104 127
105# 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
106# 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.
107if [[ -z ${CABAL_MIN_VERSION} ]]; then 130if [[ -z ${CABAL_MIN_VERSION} ]]; then
123 if [[ "${CABAL_BOOTSTRAP}" ]]; then 146 if [[ "${CABAL_BOOTSTRAP}" ]]; then
124 # We're bootstrapping cabal, so the cabal version is the version 147 # We're bootstrapping cabal, so the cabal version is the version
125 # of this package itself. 148 # of this package itself.
126 _CABAL_VERSION_CACHE="${PV}" 149 _CABAL_VERSION_CACHE="${PV}"
127 elif [[ "${CABAL_FROM_GHC}" ]]; then 150 elif [[ "${CABAL_FROM_GHC}" ]]; then
128 # We can't assume there's a version of Cabal installed by ebuild as 151 local cabal_package=$(echo "$(ghc-libdir)"/Cabal-*)
129 # this might be a first time install of GHC (for packages that 152 # /path/to/ghc/Cabal-${VER} -> ${VER}
130 # use the shipped Cabal like haskell-updater). 153 _CABAL_VERSION_CACHE="${cabal_package/*Cabal-/}"
131
132 # The user is likely to only have one version of Cabal, provided
133 # by GHC. Note that dev-haskell/cabal can be a dummy package, only
134 # using the version provided by GHC. If the user has another version
135 # of Cabal too (more recent than the one GHC provides through
136 # dev-haskell/cabal, or possibly older if he used an old
137 # Cabal package) the most recent is used (expected to be the last
138 # one in the ghc-pkg output).
139 _CABAL_VERSION_CACHE="$(ghc-pkg field Cabal version | tail -n 1)"
140
141 # Strip out the "version: " prefix
142 _CABAL_VERSION_CACHE="${_CABAL_VERSION_CACHE#"version: "}"
143 else 154 else
144 # We ask portage, not ghc, so that we only pick up 155 # We ask portage, not ghc, so that we only pick up
145 # portage-installed cabal versions. 156 # portage-installed cabal versions.
146 _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)" 157 _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
147 fi 158 fi
152cabal-bootstrap() { 163cabal-bootstrap() {
153 local setupmodule 164 local setupmodule
154 local cabalpackage 165 local cabalpackage
155 if [[ -f "${S}/Setup.lhs" ]]; then 166 if [[ -f "${S}/Setup.lhs" ]]; then
156 setupmodule="${S}/Setup.lhs" 167 setupmodule="${S}/Setup.lhs"
168 elif [[ -f "${S}/Setup.hs" ]]; then
169 setupmodule="${S}/Setup.hs"
157 else 170 else
158 if [[ -f "${S}/Setup.hs" ]]; then
159 setupmodule="${S}/Setup.hs"
160 else
161 die "No Setup.lhs or Setup.hs found" 171 die "No Setup.lhs or Setup.hs found"
162 fi 172 fi
173
174 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
175 eerror "The package dev-haskell/cabal is not correctly installed for"
176 eerror "the currently active version of ghc ($(ghc-version)). Please"
177 eerror "run haskell-updater or re-build dev-haskell/cabal."
178 die "cabal is not correctly installed"
163 fi 179 fi
164 180
165 # We build the setup program using the latest version of 181 # We build the setup program using the latest version of
166 # cabal that we have installed 182 # cabal that we have installed
167 if version_is_at_least "6.4" "$(ghc-version)"; then
168 cabalpackage=Cabal-$(cabal-version) 183 cabalpackage=Cabal-$(cabal-version)
184 einfo "Using cabal-$(cabal-version)."
185
186 make_setup() {
187 set -- -package "${cabalpackage}" --make "${setupmodule}" \
188 ${GHC_BOOTSTRAP_FLAGS} \
189 "$@" \
190 -o setup
191 echo $(ghc-getghc) ${HCFLAGS} "$@"
192 $(ghc-getghc) "$@"
193 }
194 if $(ghc-supports-shared-libraries); then
195 # # some custom build systems might use external libraries,
196 # # for which we don't have shared libs, so keep static fallback
197 # bug #411789, http://hackage.haskell.org/trac/ghc/ticket/5743#comment:3
198 # http://hackage.haskell.org/trac/ghc/ticket/7062
199 # http://hackage.haskell.org/trac/ghc/ticket/3072
200 # ghc does not set RPATH for extralibs, thus we do it ourselves by hands
201 einfo "Prepending $(ghc-libdir) to LD_LIBRARY_PATH"
202 if [[ ${CHOST} != *-darwin* ]]; then
203 LD_LIBRARY_PATH="$(ghc-libdir)${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}"
204 export LD_LIBRARY_PATH
205 else
206 DYLD_LIBRARY_PATH="$(ghc-libdir)${DYLD_LIBRARY_PATH:+:}${DYLD_LIBRARY_PATH}"
207 export DYLD_LIBRARY_PATH
208 fi
209 { make_setup -dynamic "$@" && ./setup --help >/dev/null; } ||
210 make_setup "$@" || die "compiling ${setupmodule} failed"
169 else 211 else
170 # older ghc's don't support package versioning
171 cabalpackage=Cabal
172 fi
173 einfo "Using cabal-$(cabal-version)."
174 $(ghc-getghc) -package "${cabalpackage}" --make "${setupmodule}" -o setup \
175 || die "compiling ${setupmodule} failed" 212 make_setup "$@" || die "compiling ${setupmodule} failed"
213 fi
176} 214}
177 215
178cabal-mksetup() { 216cabal-mksetup() {
179 local setupdir 217 local setupdir
180 218
185 fi 223 fi
186 224
187 rm -f "${setupdir}"/Setup.{lhs,hs} 225 rm -f "${setupdir}"/Setup.{lhs,hs}
188 226
189 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \ 227 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
190 > $setupdir/Setup.hs 228 > $setupdir/Setup.hs || die "failed to create default Setup.hs"
191} 229}
192 230
193cabal-hscolour() { 231cabal-hscolour() {
194 ./setup hscolour || die "setup hscolour failed" 232 set -- hscolour "$@"
233 echo ./setup "$@"
234 ./setup "$@" || die "setup hscolour failed"
195} 235}
196 236
197cabal-haddock() { 237cabal-haddock() {
198 ./setup haddock || die "setup haddock failed" 238 set -- haddock "$@"
239 echo ./setup "$@"
240 ./setup "$@" || die "setup haddock failed"
199} 241}
200 242
201cabal-hscolour-haddock() { 243cabal-hscolour-haddock() {
202 # --hyperlink-source implies calling 'setup hscolour' 244 # --hyperlink-source implies calling 'setup hscolour'
245 set -- haddock --hyperlink-source
246 echo ./setup "$@"
203 ./setup haddock --hyperlink-source || die "setup haddock failed" 247 ./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed"
204} 248}
205 249
206cabal-configure() { 250cabal-configure() {
207 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX= 251 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
208 252
224 cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs" 268 cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs"
225 fi 269 fi
226 if [[ -n "${CABAL_USE_CPPHS}" ]]; then 270 if [[ -n "${CABAL_USE_CPPHS}" ]]; then
227 cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs" 271 cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs"
228 fi 272 fi
273 if [[ -n "${CABAL_TEST_SUITE}" ]]; then
274 cabalconf="${cabalconf} $(use_enable test tests)"
275 fi
276
277 local option
278 for option in ${HCFLAGS}
279 do
280 cabalconf+=" --ghc-option=$option"
281 done
229 282
230 # Building GHCi libs on ppc64 causes "TOC overflow". 283 # Building GHCi libs on ppc64 causes "TOC overflow".
231 if use ppc64; then 284 if use ppc64; then
232 cabalconf="${cabalconf} --disable-library-for-ghci" 285 cabalconf="${cabalconf} --disable-library-for-ghci"
233 fi 286 fi
234 287
235 if version_is_at_least "1.4" "$(cabal-version)"; then 288 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
289 # so translate LDFLAGS to ghc parameters (without filtering)
290 local flag
291 for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done
292
236 # disable executable stripping for the executables, as portage will 293 # disable executable stripping for the executables, as portage will
237 # strip by itself, and pre-stripping gives a QA warning. 294 # strip by itself, and pre-stripping gives a QA warning.
238 # cabal versions previous to 1.4 does not strip executables, and does 295 # cabal versions previous to 1.4 does not strip executables, and does
239 # not accept the flag. 296 # not accept the flag.
240 # this fixes numerous bugs, amongst them; 297 # this fixes numerous bugs, amongst them;
241 # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494 298 # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
242 cabalconf="${cabalconf} --disable-executable-stripping" 299 cabalconf="${cabalconf} --disable-executable-stripping"
243 fi
244 300
245 if version_is_at_least "1.2.0" "$(cabal-version)"; then
246 cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}" 301 cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}"
247 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes 302 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
248 # it's better if the configure chatter is in the build logs: 303 # it's better if the configure chatter is in the build logs:
249 cabalconf="${cabalconf} --verbose" 304 cabalconf="${cabalconf} --verbose"
305
306 # We build shared version of our Cabal where ghc ships it's shared
307 # version of it. We will link ./setup as dynamic binary againt Cabal later.
308 [[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
309 $(ghc-supports-shared-libraries) && \
310 cabalconf="${cabalconf} --enable-shared"
311
312 if $(ghc-supports-shared-libraries); then
313 # maybe a bit lower
314 if version_is_at_least "7.7.20121114" "$(ghc-version)"; then
315 cabalconf="${cabalconf} --enable-shared"
250 fi 316 fi
251 # Note: with Cabal-1.1.6.x we do not have enough control 317 fi
252 # to put the docs into the right place. They're currently going
253 # into /usr/share/${P}/ghc-x.y/doc/
254 # rather than /usr/share/doc/${PF}/
255 # Because we can only set the datadir, not the docdir.
256 318
257 ./setup configure \ 319 set -- configure \
258 --ghc --prefix="${EPREFIX}"/usr \ 320 --ghc --prefix="${EPREFIX}"/usr \
259 --with-compiler="$(ghc-getghc)" \ 321 --with-compiler="$(ghc-getghc)" \
260 --with-hc-pkg="$(ghc-getghcpkg)" \ 322 --with-hc-pkg="$(ghc-getghcpkg)" \
261 --prefix="${EPREFIX}"/usr \ 323 --prefix="${EPREFIX}"/usr \
262 --libdir="${EPREFIX}"/usr/$(get_libdir) \ 324 --libdir="${EPREFIX}"/usr/$(get_libdir) \
263 --libsubdir=${P}/ghc-$(ghc-version) \ 325 --libsubdir=${P}/ghc-$(ghc-version) \
264 --datadir="${EPREFIX}"/usr/share/ \ 326 --datadir="${EPREFIX}"/usr/share/ \
265 --datasubdir=${P}/ghc-$(ghc-version) \ 327 --datasubdir=${P}/ghc-$(ghc-version) \
266 ${cabalconf} \ 328 ${cabalconf} \
267 ${CABAL_CONFIGURE_FLAGS} \ 329 ${CABAL_CONFIGURE_FLAGS} \
330 ${CABAL_EXTRA_CONFIGURE_FLAGS} \
331 "$@"
332 echo ./setup "$@"
268 "$@" || die "setup configure failed" 333 ./setup "$@" || die "setup configure failed"
269} 334}
270 335
271cabal-build() { 336cabal-build() {
272 unset LANG LC_ALL LC_MESSAGES 337 unset LANG LC_ALL LC_MESSAGES
273 ./setup build \ 338 set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@"
339 echo ./setup "$@"
340 ./setup "$@" \
274 || die "setup build failed" 341 || die "setup build failed"
275} 342}
276 343
277cabal-copy() { 344cabal-copy() {
278 has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D} 345 has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D}
279 346
280 ./setup copy \ 347 set -- copy --destdir="${D}" "$@"
281 --destdir="${D}" \ 348 echo ./setup "$@"
282 || die "setup copy failed" 349 ./setup "$@" || die "setup copy failed"
283 350
284 # cabal is a bit eager about creating dirs, 351 # cabal is a bit eager about creating dirs,
285 # so remove them if they are empty 352 # so remove them if they are empty
286 rmdir "${ED}/usr/bin" 2> /dev/null 353 rmdir "${ED}/usr/bin" 2> /dev/null
287
288 # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
289 # no workaround.
290 # set the +x permission on executables
291 if [[ -d "${ED}/usr/bin" ]] ; then
292 chmod +x "${ED}/usr/bin/"*
293 fi
294 # TODO: do we still need this?
295} 354}
296 355
297cabal-pkg() { 356cabal-pkg() {
298 # This does not actually register since we're using true instead 357 # This does not actually register since we're using true instead
299 # of ghc-pkg. So it just leaves the .installed-pkg-config and we can 358 # of ghc-pkg. So it just leaves the .conf file and we can
300 # register that ourselves (if it exists). 359 # register that ourselves (if it exists).
301 local result
302 local err
303 360
304 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then 361 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
305 if version_is_at_least "1.2.0" "$(cabal-version)"; then
306 # Newer cabal can generate a package conf for us: 362 # Newer cabal can generate a package conf for us:
307 ./setup register --gen-pkg-config="${T}/${P}.conf" 363 ./setup register --gen-pkg-config="${T}/${P}.conf"
308 ghc-setup-pkg "${T}/${P}.conf" 364 ghc-setup-pkg "${T}/${P}.conf"
309 ghc-install-pkg 365 ghc-install-pkg
310 else
311 # With older cabal we have to hack it by replacing its ghc-pkg
312 # with true and then just picking up the .installed-pkg-config
313 # file and registering that ourselves (if it exists).
314 sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config
315 ./setup register || die "setup register failed"
316 if [[ -f .installed-pkg-config ]]; then
317 ghc-setup-pkg .installed-pkg-config
318 ghc-install-pkg
319 else
320 die "setup register has not generated a package configuration file"
321 fi
322 fi
323 fi 366 fi
324} 367}
325 368
326# Some cabal libs are bundled along with some versions of ghc 369# Some cabal libs are bundled along with some versions of ghc
327# eg filepath-1.0 comes with ghc-6.6.1 370# eg filepath-1.0 comes with ghc-6.6.1
331# However portage still records the dependency and we can upgrade the package 374# However portage still records the dependency and we can upgrade the package
332# to a later one that's not included with ghc. 375# to a later one that's not included with ghc.
333# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1". 376# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
334cabal-is-dummy-lib() { 377cabal-is-dummy-lib() {
335 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do 378 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
336 [[ "$(ghc-version)" == "$version" ]] && return 0 379 [[ "$(ghc-version)" == ${version} ]] && return 0
337 done 380 done
338 return 1 381 return 1
339} 382}
340 383
341# exported function: check if cabal is correctly installed for 384# exported function: check if cabal is correctly installed for
342# the currently active ghc (we cannot guarantee this with portage) 385# the currently active ghc (we cannot guarantee this with portage)
343haskell-cabal_pkg_setup() { 386haskell-cabal_pkg_setup() {
344 ghc-package_pkg_setup
345 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
346 eerror "The package dev-haskell/cabal is not correctly installed for"
347 eerror "the currently active version of ghc ($(ghc-version)). Please"
348 eerror "run ghc-updater or haskell-updater or re-build dev-haskell/cabal."
349 die "cabal is not correctly installed"
350 fi
351 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then 387 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
352 eerror "QA: Neither bin nor lib are in CABAL_FEATURES." 388 eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES."
353 fi 389 fi
354 if [[ -n "${CABAL_UNKNOWN}" ]]; then 390 if [[ -n "${CABAL_UNKNOWN}" ]]; then
355 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}" 391 eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
356 fi 392 fi
357 if cabal-is-dummy-lib; then 393 if cabal-is-dummy-lib; then
358 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install." 394 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
359 fi 395 fi
360} 396}
361 397
362haskell-cabal_src_configure() { 398haskell-cabal_src_configure() {
363 if ! cabal-is-dummy-lib; then 399 cabal-is-dummy-lib && return
400
364 pushd "${S}" > /dev/null 401 pushd "${S}" > /dev/null
365 402
366 cabal-bootstrap 403 cabal-bootstrap
367 404
368 ghc_flags=""
369 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
370 # so translate LDFLAGS to ghc parameters (without filtering)
371 for flag in $LDFLAGS; do ghc_flags="${ghc_flags} --ghc-option=-optl$flag"; done
372
373 cabal-configure $ghc_flags "$@" 405 cabal-configure "$@"
374 406
375 popd > /dev/null 407 popd > /dev/null
376 fi
377} 408}
378 409
379# exported function: nice alias 410# exported function: nice alias
380cabal_src_configure() { 411cabal_src_configure() {
381 haskell-cabal_src_configure "$@" 412 haskell-cabal_src_configure "$@"
382} 413}
383 414
384# exported function: cabal-style bootstrap configure and compile 415# exported function: cabal-style bootstrap configure and compile
385cabal_src_compile() { 416cabal_src_compile() {
386 if ! cabal-is-dummy-lib; then 417 # it's a common mistake when one bumps ebuild to EAPI="2" (and upper)
418 # and forgets to separate src_compile() to src_configure()/src_compile().
419 # Such error leads to default src_configure and we lose all passed flags.
420 if ! has "${EAPI:-0}" 0 1; then
421 local passed_flag
422 for passed_flag in "$@"; do
423 [[ ${passed_flag} == --flags=* ]] && \
424 eqawarn "QA Notice: Cabal option '${passed_flag}' has effect only in src_configure()"
425 done
426 fi
427
428 cabal-is-dummy-lib && return
429
387 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@" 430 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
388 cabal-build 431 cabal-build
389 432
390 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 433 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
391 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then 434 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
392 # hscolour and haddock 435 # hscolour and haddock
393 cabal-hscolour-haddock 436 cabal-hscolour-haddock
394 else
395 # just haddock
396 cabal-haddock
397 fi
398 else 437 else
438 # just haddock
439 cabal-haddock
440 fi
441 else
399 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then 442 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
400 # just hscolour 443 # just hscolour
401 cabal-hscolour 444 cabal-hscolour
402 fi
403 fi 445 fi
404 fi 446 fi
405} 447}
406 448
407haskell-cabal_src_compile() { 449haskell-cabal_src_compile() {
417 459
418 if cabal-is-dummy-lib; then 460 if cabal-is-dummy-lib; then
419 einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}" 461 einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
420 else 462 else
421 einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}" 463 einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
464 set -- test "$@"
465 echo ./setup "$@"
422 ./setup test || die "cabal test failed" 466 ./setup "$@" || die "cabal test failed"
423 fi 467 fi
424 468
425 popd > /dev/null 469 popd > /dev/null
426} 470}
427 471
428# exported function: cabal-style copy and register 472# exported function: cabal-style copy and register
429cabal_src_install() { 473cabal_src_install() {
430 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX= 474 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
431 475
432 if cabal-is-dummy-lib; then 476 if ! cabal-is-dummy-lib; then
433 # create a dummy local package conf file for the sake of ghc-updater
434 local ghc_confdir_with_prefix="$(ghc-confdir)"
435 # remove EPREFIX
436 dodir ${ghc_confdir_with_prefix#${EPREFIX}}
437 echo '[]' > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
438 else
439 cabal-copy 477 cabal-copy
440 cabal-pkg 478 cabal-pkg
479 fi
441 480
442 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 481 # create a dummy local package conf file for haskell-updater
443 if ! version_is_at_least "1.1.6" "$(cabal-version)"; then 482 # if it does not exist (dummy libraries and binaries w/o libraries)
444 dohtml -r dist/doc/html/* 483 local ghc_confdir_with_prefix="$(ghc-confdir)"
484 # remove EPREFIX
485 dodir ${ghc_confdir_with_prefix#${EPREFIX}}
486 local conf_file="${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
487 [[ -e $conf_file ]] || echo '[]' > "$conf_file" || die
488
489 # make sure installed packages do not destroy ghc's
490 # bundled packages
491 local initial_pkg_db=${ROOT}/$(ghc-libdir)/package.conf.d.initial
492 if [[ -e ${initial_pkg_db} ]]; then
493 local checked_pkg
494 for checked_pkg in $(ghc-listpkg "${conf_file}")
495 do
496 local initial_pkg
497 for initial_pkg in $(ghc-listpkg "${initial_pkg_db}"); do
498 if [[ ${checked_pkg} = ${initial_pkg} ]]; then
499 eerror "Package ${checked_pkg} is shipped with $(ghc-version)."
500 eerror "Ebuild author forgot CABAL_CORE_LIB_GHC_PV entry."
501 eerror "Found in ${initial_pkg_db}."
502 die
445 fi 503 fi
446 fi 504 done
505 done
447 fi 506 fi
448} 507}
449 508
450haskell-cabal_src_install() { 509haskell-cabal_src_install() {
451 pushd "${S}" > /dev/null 510 pushd "${S}" > /dev/null
480 echo "--flags=-${UWORD}" 539 echo "--flags=-${UWORD}"
481 fi 540 fi
482 541
483 return 0 542 return 0
484} 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=$2
583 einfo "CHDEP: '${from_pat}' -> '${to_str}'"
584
585 [[ -n ${from_pat} ]] || break
586 [[ -n ${to_str} ]] || die "'${from_str}' does not have 'to' part"
587
588 # escape pattern-like symbols
589 from_pat=${from_pat//\*/\\*}
590 from_pat=${from_pat//\[/\\[}
591
592 new_c=${orig_c//${from_pat}/${to_str}}
593
594 if [[ -n $CABAL_DEBUG_LOOSENING ]]; then
595 echo "${orig_c}" >"${T}/${cf}".pre
596 echo "${new_c}" >"${T}/${cf}".post
597 diff -u "${T}/${cf}".{pre,post}
598 fi
599
600 [[ "${orig_c}" == "${new_c}" ]] && die "no trigger for '${from_ss}'"
601 orig_c=${new_c}
602 shift
603 shift
604 done
605
606 echo "${new_c}" > "$cf" ||
607 die "failed to update"
608}

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