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Revision 1.26 Revision 1.36
1# Copyright 1999-2012 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 1.26 2012/01/20 18:24:09 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 5# @ECLASS: haskell-cabal.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# Haskell herd <haskell@gentoo.org> 7# Haskell herd <haskell@gentoo.org>
8# @AUTHOR: 8# @AUTHOR:
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
49# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS 38# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS
50# @DESCRIPTION: 39# @DESCRIPTION:
51# User-specified additional parameters passed to 'setup configure'. 40# User-specified additional parameters passed to 'setup configure'.
52# example: /etc/make.conf: CABAL_EXTRA_CONFIGURE_FLAGS=--enable-shared 41# example: /etc/make.conf: CABAL_EXTRA_CONFIGURE_FLAGS=--enable-shared
53: ${CABAL_EXTRA_CONFIGURE_FLAGS:=} 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:=}
54 49
55# @ECLASS-VARIABLE: GHC_BOOTSTRAP_FLAGS 50# @ECLASS-VARIABLE: GHC_BOOTSTRAP_FLAGS
56# @DESCRIPTION: 51# @DESCRIPTION:
57# User-specified additional parameters for ghc when building 52# User-specified additional parameters for ghc when building
58# _only_ 'setup' binary bootstrap. 53# _only_ 'setup' binary bootstrap.
59# example: /etc/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make 54# example: /etc/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make
60# linking 'setup' faster. 55# linking 'setup' faster.
61: ${GHC_BOOTSTRAP_FLAGS:=} 56: ${GHC_BOOTSTRAP_FLAGS:=}
62 57
58# @ECLASS-VARIABLE: CABAL_DEBUG_LOOSENING
59# @DESCRIPTION:
60# Show debug output for 'cabal_chdeps' function if set.
61# Needs working 'diff'.
62: ${CABAL_DEBUG_LOOSENING:=}
63
63HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install" 64HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"
64 65
65case "${EAPI:-0}" in 66case "${EAPI:-0}" in
66 2|3|4) HASKELL_CABAL_EXPF+=" src_configure" ;; 67 2|3|4|5) HASKELL_CABAL_EXPF+=" src_configure" ;;
67 *) ;; 68 *) ;;
68esac 69esac
69 70
70EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF} 71EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
71 72
81 profile) CABAL_USE_PROFILE=yes;; 82 profile) CABAL_USE_PROFILE=yes;;
82 bootstrap) CABAL_BOOTSTRAP=yes;; 83 bootstrap) CABAL_BOOTSTRAP=yes;;
83 bin) CABAL_HAS_BINARIES=yes;; 84 bin) CABAL_HAS_BINARIES=yes;;
84 lib) CABAL_HAS_LIBRARIES=yes;; 85 lib) CABAL_HAS_LIBRARIES=yes;;
85 nocabaldep) CABAL_FROM_GHC=yes;; 86 nocabaldep) CABAL_FROM_GHC=yes;;
87 test-suite) CABAL_TEST_SUITE=yes;;
86 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";; 88 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
87 esac 89 esac
88done 90done
89 91
90if [[ -n "${CABAL_USE_HADDOCK}" ]]; then 92if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
91 IUSE="${IUSE} doc" 93 IUSE="${IUSE} doc"
92 DEPEND="${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="${DEPEND} doc? ( dev-haskell/haddock )"
93fi 97fi
94 98
95if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then 99if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then
96 IUSE="${IUSE} hscolour" 100 IUSE="${IUSE} hscolour"
97 DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )" 101 DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )"
113 DEPEND="${DEPEND} dev-haskell/cpphs" 117 DEPEND="${DEPEND} dev-haskell/cpphs"
114fi 118fi
115 119
116if [[ -n "${CABAL_USE_PROFILE}" ]]; then 120if [[ -n "${CABAL_USE_PROFILE}" ]]; then
117 IUSE="${IUSE} profile" 121 IUSE="${IUSE} profile"
122fi
123
124if [[ -n "${CABAL_TEST_SUITE}" ]]; then
125 IUSE="${IUSE} test"
118fi 126fi
119 127
120# 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
121# 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.
122if [[ -z ${CABAL_MIN_VERSION} ]]; then 130if [[ -z ${CABAL_MIN_VERSION} ]]; then
155cabal-bootstrap() { 163cabal-bootstrap() {
156 local setupmodule 164 local setupmodule
157 local cabalpackage 165 local cabalpackage
158 if [[ -f "${S}/Setup.lhs" ]]; then 166 if [[ -f "${S}/Setup.lhs" ]]; then
159 setupmodule="${S}/Setup.lhs" 167 setupmodule="${S}/Setup.lhs"
168 elif [[ -f "${S}/Setup.hs" ]]; then
169 setupmodule="${S}/Setup.hs"
160 else 170 else
161 if [[ -f "${S}/Setup.hs" ]]; then
162 setupmodule="${S}/Setup.hs"
163 else
164 die "No Setup.lhs or Setup.hs found" 171 die "No Setup.lhs or Setup.hs found"
165 fi 172 fi
173
174 if [[ -z "${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 ($(ghc-version)). Please"
177 eerror "run haskell-updater or re-build dev-haskell/cabal."
178 die "cabal is not correctly installed"
166 fi 179 fi
167 180
168 # We build the setup program using the latest version of 181 # We build the setup program using the latest version of
169 # cabal that we have installed 182 # cabal that we have installed
170 if version_is_at_least "6.4" "$(ghc-version)"; then
171 cabalpackage=Cabal-$(cabal-version) 183 cabalpackage=Cabal-$(cabal-version)
172 else
173 # older ghc's don't support package versioning
174 cabalpackage=Cabal
175 fi
176 einfo "Using cabal-$(cabal-version)." 184 einfo "Using cabal-$(cabal-version)."
177 185
178 make_setup() { 186 make_setup() {
179 set -- -package "${cabalpackage}" --make "${setupmodule}" \ 187 set -- -package "${cabalpackage}" --make "${setupmodule}" \
180 ${GHC_BOOTSTRAP_FLAGS} \ 188 ${GHC_BOOTSTRAP_FLAGS} \
181 "$@" \ 189 "$@" \
182 -o setup 190 -o setup
183 echo $(ghc-getghc) "$@" 191 echo $(ghc-getghc) ${HCFLAGS} "$@"
184 $(ghc-getghc) "$@" 192 $(ghc-getghc) "$@"
185 } 193 }
186 if $(ghc-supports-shared-libraries); then 194 if $(ghc-supports-shared-libraries); then
187 # some custom build systems might use external libraries, 195 # # some custom build systems might use external libraries,
188 # for which we don't have shared libs, so keep static fallback 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; } ||
189 make_setup -dynamic "$@" || make_setup "$@" || die "compiling ${setupmodule} failed" 210 make_setup "$@" || die "compiling ${setupmodule} failed"
190 else 211 else
191 make_setup "$@" || die "compiling ${setupmodule} failed" 212 make_setup "$@" || die "compiling ${setupmodule} failed"
192 fi 213 fi
193} 214}
194 215
202 fi 223 fi
203 224
204 rm -f "${setupdir}"/Setup.{lhs,hs} 225 rm -f "${setupdir}"/Setup.{lhs,hs}
205 226
206 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \ 227 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
207 > $setupdir/Setup.hs 228 > $setupdir/Setup.hs || die "failed to create default Setup.hs"
208} 229}
209 230
210cabal-hscolour() { 231cabal-hscolour() {
211 set -- hscolour "$@" 232 set -- hscolour "$@"
212 echo ./setup "$@" 233 echo ./setup "$@"
247 cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs" 268 cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs"
248 fi 269 fi
249 if [[ -n "${CABAL_USE_CPPHS}" ]]; then 270 if [[ -n "${CABAL_USE_CPPHS}" ]]; then
250 cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs" 271 cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs"
251 fi 272 fi
273 if [[ -n "${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
252 282
253 # Building GHCi libs on ppc64 causes "TOC overflow". 283 # Building GHCi libs on ppc64 causes "TOC overflow".
254 if use ppc64; then 284 if use ppc64; then
255 cabalconf="${cabalconf} --disable-library-for-ghci" 285 cabalconf="${cabalconf} --disable-library-for-ghci"
256 fi 286 fi
258 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217) 288 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
259 # so translate LDFLAGS to ghc parameters (without filtering) 289 # so translate LDFLAGS to ghc parameters (without filtering)
260 local flag 290 local flag
261 for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done 291 for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done
262 292
263 if version_is_at_least "1.4" "$(cabal-version)"; then
264 # disable executable stripping for the executables, as portage will 293 # disable executable stripping for the executables, as portage will
265 # strip by itself, and pre-stripping gives a QA warning. 294 # strip by itself, and pre-stripping gives a QA warning.
266 # 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
267 # not accept the flag. 296 # not accept the flag.
268 # this fixes numerous bugs, amongst them; 297 # this fixes numerous bugs, amongst them;
269 # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494 298 # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
270 cabalconf="${cabalconf} --disable-executable-stripping" 299 cabalconf="${cabalconf} --disable-executable-stripping"
271 fi
272 300
273 if version_is_at_least "1.2.0" "$(cabal-version)"; then
274 cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}" 301 cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}"
275 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes 302 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
276 # it's better if the configure chatter is in the build logs: 303 # it's better if the configure chatter is in the build logs:
277 cabalconf="${cabalconf} --verbose" 304 cabalconf="${cabalconf} --verbose"
278 fi
279 # Note: with Cabal-1.1.6.x we do not have enough control
280 # to put the docs into the right place. They're currently going
281 # into /usr/share/${P}/ghc-x.y/doc/
282 # rather than /usr/share/doc/${PF}/
283 # Because we can only set the datadir, not the docdir.
284 305
285 # We build shared version of our Cabal where ghc ships it's shared 306 # We build shared version of our Cabal where ghc ships it's shared
286 # version of it. We will link ./setup as dynamic binary againt Cabal later. 307 # version of it. We will link ./setup as dynamic binary againt Cabal later.
287 [[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \ 308 [[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
288 $(ghc-supports-shared-libraries) && \ 309 $(ghc-supports-shared-libraries) && \
289 cabalconf="${cabalconf} --enable-shared" 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="${cabalconf} --enable-shared"
316 fi
317 fi
290 318
291 set -- configure \ 319 set -- configure \
292 --ghc --prefix="${EPREFIX}"/usr \ 320 --ghc --prefix="${EPREFIX}"/usr \
293 --with-compiler="$(ghc-getghc)" \ 321 --with-compiler="$(ghc-getghc)" \
294 --with-hc-pkg="$(ghc-getghcpkg)" \ 322 --with-hc-pkg="$(ghc-getghcpkg)" \
305 ./setup "$@" || die "setup configure failed" 333 ./setup "$@" || die "setup configure failed"
306} 334}
307 335
308cabal-build() { 336cabal-build() {
309 unset LANG LC_ALL LC_MESSAGES 337 unset LANG LC_ALL LC_MESSAGES
310 set -- build "$@" 338 set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@"
311 echo ./setup "$@" 339 echo ./setup "$@"
312 ./setup "$@" \ 340 ./setup "$@" \
313 || die "setup build failed" 341 || die "setup build failed"
314} 342}
315 343
321 ./setup "$@" || die "setup copy failed" 349 ./setup "$@" || die "setup copy failed"
322 350
323 # cabal is a bit eager about creating dirs, 351 # cabal is a bit eager about creating dirs,
324 # so remove them if they are empty 352 # so remove them if they are empty
325 rmdir "${ED}/usr/bin" 2> /dev/null 353 rmdir "${ED}/usr/bin" 2> /dev/null
326
327 # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
328 # no workaround.
329 # set the +x permission on executables
330 if [[ -d "${ED}/usr/bin" ]] ; then
331 chmod +x "${ED}/usr/bin/"*
332 fi
333 # TODO: do we still need this?
334} 354}
335 355
336cabal-pkg() { 356cabal-pkg() {
337 # This does not actually register since we're using true instead 357 # This does not actually register since we're using true instead
338 # 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
339 # register that ourselves (if it exists). 359 # register that ourselves (if it exists).
340 local result
341 local err
342 360
343 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then 361 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
344 if version_is_at_least "1.2.0" "$(cabal-version)"; then
345 # Newer cabal can generate a package conf for us: 362 # Newer cabal can generate a package conf for us:
346 ./setup register --gen-pkg-config="${T}/${P}.conf" 363 ./setup register --gen-pkg-config="${T}/${P}.conf"
347 ghc-setup-pkg "${T}/${P}.conf" 364 ghc-setup-pkg "${T}/${P}.conf"
348 ghc-install-pkg 365 ghc-install-pkg
349 else
350 # With older cabal we have to hack it by replacing its ghc-pkg
351 # with true and then just picking up the .installed-pkg-config
352 # file and registering that ourselves (if it exists).
353 sed -i "s|$(ghc-getghcpkg)|$(type -P true)|" .setup-config
354 ./setup register || die "setup register failed"
355 if [[ -f .installed-pkg-config ]]; then
356 ghc-setup-pkg .installed-pkg-config
357 ghc-install-pkg
358 else
359 die "setup register has not generated a package configuration file"
360 fi
361 fi
362 fi 366 fi
363} 367}
364 368
365# Some cabal libs are bundled along with some versions of ghc 369# Some cabal libs are bundled along with some versions of ghc
366# eg filepath-1.0 comes with ghc-6.6.1 370# eg filepath-1.0 comes with ghc-6.6.1
370# 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
371# to a later one that's not included with ghc. 375# to a later one that's not included with ghc.
372# 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".
373cabal-is-dummy-lib() { 377cabal-is-dummy-lib() {
374 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do 378 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
375 [[ "$(ghc-version)" == "$version" ]] && return 0 379 [[ "$(ghc-version)" == ${version} ]] && return 0
376 done 380 done
377 return 1 381 return 1
378} 382}
379 383
380# exported function: check if cabal is correctly installed for 384# exported function: check if cabal is correctly installed for
381# the currently active ghc (we cannot guarantee this with portage) 385# the currently active ghc (we cannot guarantee this with portage)
382haskell-cabal_pkg_setup() { 386haskell-cabal_pkg_setup() {
383 ghc-package_pkg_setup
384 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
385 eerror "The package dev-haskell/cabal is not correctly installed for"
386 eerror "the currently active version of ghc ($(ghc-version)). Please"
387 eerror "run ghc-updater or haskell-updater or re-build dev-haskell/cabal."
388 die "cabal is not correctly installed"
389 fi
390 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then 387 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
391 eerror "QA: Neither bin nor lib are in CABAL_FEATURES." 388 eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES."
392 fi 389 fi
393 if [[ -n "${CABAL_UNKNOWN}" ]]; then 390 if [[ -n "${CABAL_UNKNOWN}" ]]; then
394 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}" 391 eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
395 fi 392 fi
396 if cabal-is-dummy-lib; then 393 if cabal-is-dummy-lib; then
397 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install." 394 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
398 fi 395 fi
399} 396}
400 397
401haskell-cabal_src_configure() { 398haskell-cabal_src_configure() {
402 if ! cabal-is-dummy-lib; then 399 cabal-is-dummy-lib && return
400
403 pushd "${S}" > /dev/null 401 pushd "${S}" > /dev/null
404 402
405 cabal-bootstrap 403 cabal-bootstrap
406 404
407 cabal-configure $ghc_flags "$@" 405 cabal-configure "$@"
408 406
409 popd > /dev/null 407 popd > /dev/null
410 fi
411} 408}
412 409
413# exported function: nice alias 410# exported function: nice alias
414cabal_src_configure() { 411cabal_src_configure() {
415 haskell-cabal_src_configure "$@" 412 haskell-cabal_src_configure "$@"
422 # Such error leads to default src_configure and we lose all passed flags. 419 # Such error leads to default src_configure and we lose all passed flags.
423 if ! has "${EAPI:-0}" 0 1; then 420 if ! has "${EAPI:-0}" 0 1; then
424 local passed_flag 421 local passed_flag
425 for passed_flag in "$@"; do 422 for passed_flag in "$@"; do
426 [[ ${passed_flag} == --flags=* ]] && \ 423 [[ ${passed_flag} == --flags=* ]] && \
427 eqawarn "Cabal option '${passed_flag}' has effect only in src_configure()" 424 eqawarn "QA Notice: Cabal option '${passed_flag}' has effect only in src_configure()"
428 done 425 done
429 fi 426 fi
430 427
431 if ! cabal-is-dummy-lib; then 428 cabal-is-dummy-lib && return
429
432 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@" 430 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
433 cabal-build 431 cabal-build
434 432
435 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 433 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
436 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then 434 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
437 # hscolour and haddock 435 # hscolour and haddock
438 cabal-hscolour-haddock 436 cabal-hscolour-haddock
439 else
440 # just haddock
441 cabal-haddock
442 fi
443 else 437 else
438 # just haddock
439 cabal-haddock
440 fi
441 else
444 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then 442 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
445 # just hscolour 443 # just hscolour
446 cabal-hscolour 444 cabal-hscolour
447 fi
448 fi 445 fi
449 fi 446 fi
450} 447}
451 448
452haskell-cabal_src_compile() { 449haskell-cabal_src_compile() {
474 471
475# exported function: cabal-style copy and register 472# exported function: cabal-style copy and register
476cabal_src_install() { 473cabal_src_install() {
477 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX= 474 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
478 475
479 if cabal-is-dummy-lib; then 476 if ! cabal-is-dummy-lib; then
480 # create a dummy local package conf file for the sake of ghc-updater
481 local ghc_confdir_with_prefix="$(ghc-confdir)"
482 # remove EPREFIX
483 dodir ${ghc_confdir_with_prefix#${EPREFIX}}
484 echo '[]' > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
485 else
486 cabal-copy 477 cabal-copy
487 cabal-pkg 478 cabal-pkg
479 fi
488 480
489 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 481 # create a dummy local package conf file for haskell-updater
490 if ! version_is_at_least "1.1.6" "$(cabal-version)"; then 482 # if it does not exist (dummy libraries and binaries w/o libraries)
491 dohtml -r dist/doc/html/* 483 local ghc_confdir_with_prefix="$(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 ${initial_pkg_db}."
502 die
492 fi 503 fi
493 fi 504 done
505 done
494 fi 506 fi
495} 507}
496 508
497haskell-cabal_src_install() { 509haskell-cabal_src_install() {
498 pushd "${S}" > /dev/null 510 pushd "${S}" > /dev/null
527 echo "--flags=-${UWORD}" 539 echo "--flags=-${UWORD}"
528 fi 540 fi
529 541
530 return 0 542 return 0
531} 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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