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Revision 1.1.1.1 Revision 1.53
1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2015 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 1.1.1.1 2005/11/30 09:59:22 chriswhite Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.53 2015/08/06 08:20:33 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# 29# bin -- the package installs binaries
28# Dependencies on other cabal packages have to be specified 30# lib -- the package installs libraries
29# correctly. 31# nocabaldep -- don't add dependency on cabal.
30# 32# only used for packages that _must_ not pull the dependency
31# Cabal libraries should usually be SLOTted with "${PV}". 33# on cabal, but still use this eclass (e.g. haskell-updater).
32# 34# ghcdeps -- constraint dependency on package to ghc onces
33# Many Cabal packages require S to be manually set. 35# only used for packages that use libghc internally and _must_
34# 36# not pull upper versions
35# Conforming Cabal packages don't require any function definitions 37# test-suite -- add support for cabal test-suites (introduced in Cabal-1.8)
36# in the ebuild.
37 38
38inherit ghc-package 39inherit eutils ghc-package multilib multiprocessing
39 40
41# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS
42# @DESCRIPTION:
43# User-specified additional parameters passed to 'setup configure'.
44# example: /etc/portage/make.conf:
45# CABAL_EXTRA_CONFIGURE_FLAGS="--enable-shared --enable-executable-dynamic"
46: ${CABAL_EXTRA_CONFIGURE_FLAGS:=}
47
48# @ECLASS-VARIABLE: CABAL_EXTRA_BUILD_FLAGS
49# @DESCRIPTION:
50# User-specified additional parameters passed to 'setup build'.
51# example: /etc/portage/make.conf: CABAL_EXTRA_BUILD_FLAGS=-v
52: ${CABAL_EXTRA_BUILD_FLAGS:=}
53
54# @ECLASS-VARIABLE: GHC_BOOTSTRAP_FLAGS
55# @DESCRIPTION:
56# User-specified additional parameters for ghc when building
57# _only_ 'setup' binary bootstrap.
58# example: /etc/portage/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make
59# linking 'setup' faster.
60: ${GHC_BOOTSTRAP_FLAGS:=}
61
62# @ECLASS-VARIABLE: CABAL_DEBUG_LOOSENING
63# @DESCRIPTION:
64# Show debug output for 'cabal_chdeps' function if set.
65# Needs working 'diff'.
66: ${CABAL_DEBUG_LOOSENING:=}
67
68HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install pkg_postinst pkg_postrm"
69
70# 'dev-haskell/cabal' passes those options with ./configure-based
71# configuration, but most packages don't need/don't accept it:
72# #515362, #515362
73QA_CONFIGURE_OPTIONS+=" --with-compiler --with-hc --with-hc-pkg --with-gcc"
74
75case "${EAPI:-0}" in
76 2|3|4|5) HASKELL_CABAL_EXPF+=" src_configure" ;;
77 *) ;;
78esac
79
80EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
40 81
41for feature in ${CABAL_FEATURES}; do 82for feature in ${CABAL_FEATURES}; do
42 case ${feature} in 83 case ${feature} in
43 haddock) CABAL_USE_HADDOCK=yes;; 84 haddock) CABAL_USE_HADDOCK=yes;;
85 hscolour) CABAL_USE_HSCOLOUR=yes;;
86 hoogle) CABAL_USE_HOOGLE=yes;;
44 alex) CABAL_USE_ALEX=yes;; 87 alex) CABAL_USE_ALEX=yes;;
45 happy) CABAL_USE_HAPPY=yes;; 88 happy) CABAL_USE_HAPPY=yes;;
46 c2hs) CABAL_USE_C2HS=yes;; 89 c2hs) CABAL_USE_C2HS=yes;;
47 cpphs) CABAL_USE_CPPHS=yes;; 90 cpphs) CABAL_USE_CPPHS=yes;;
48 profile) CABAL_USE_PROFILE=yes;; 91 profile) CABAL_USE_PROFILE=yes;;
49 bootstrap) CABAL_BOOTSTRAP=yes;; 92 bootstrap) CABAL_BOOTSTRAP=yes;;
50 *) ewarn "Unknown entry in CABAL_FEATURES: ${feature}";; 93 bin) CABAL_HAS_BINARIES=yes;;
94 lib) CABAL_HAS_LIBRARIES=yes;;
95 nocabaldep) CABAL_FROM_GHC=yes;;
96 ghcdeps) CABAL_GHC_CONSTRAINT=yes;;
97 test-suite) CABAL_TEST_SUITE=yes;;
98 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
51 esac 99 esac
52done 100done
53 101
54if [[ -n "${CABAL_USE_HADDOCK}" ]]; then 102if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
55 IUSE="${IUSE} doc" 103 IUSE="${IUSE} doc"
104 # don't require depend on itself to build docs.
105 # ebuild bootstraps docs from just built binary
106 [[ ${CATEGORY}/${PN} = "dev-haskell/haddock" ]] || DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
107fi
108
109if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then
110 IUSE="${IUSE} hscolour"
56 DEPEND="${DEPEND} doc? ( dev-haskell/haddock )" 111 DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )"
57 cabalconf="${cabalconf} --with-haddock=/usr/bin/haddock" 112fi
113
114if [[ -n "${CABAL_USE_HOOGLE}" ]]; then
115 # enabled only in ::haskell
116 CABAL_USE_HOOGLE=
58fi 117fi
59 118
60if [[ -n "${CABAL_USE_ALEX}" ]]; then 119if [[ -n "${CABAL_USE_ALEX}" ]]; then
61 DEPEND="${DEPEND} dev-haskell/alex" 120 DEPEND="${DEPEND} dev-haskell/alex"
62 cabalconf="${cabalconf} --with-alex=/usr/bin/alex"
63fi 121fi
64 122
65if [[ -n "${CABAL_USE_HAPPY}" ]]; then 123if [[ -n "${CABAL_USE_HAPPY}" ]]; then
66 DEPEND="${DEPEND} dev-haskell/happy" 124 DEPEND="${DEPEND} dev-haskell/happy"
67 cabalconf="${cabalconf} --with-happy=/usr/bin/happy"
68fi 125fi
69 126
70if [[ -n "${CABAL_USE_C2HS}" ]]; then 127if [[ -n "${CABAL_USE_C2HS}" ]]; then
71 DEPEND="${DEPEND} dev-haskell/c2hs" 128 DEPEND="${DEPEND} dev-haskell/c2hs"
72 cabalconf="${cabalconf} --with-c2hs=/usr/bin/c2hs"
73fi 129fi
74 130
75if [[ -n "${CABAL_USE_CPPHS}" ]]; then 131if [[ -n "${CABAL_USE_CPPHS}" ]]; then
76 DEPEND="${DEPEND} dev-haskell/cpphs" 132 DEPEND="${DEPEND} dev-haskell/cpphs"
77 cabalconf="${cabalconf} --with-cpphs=/usr/bin/cpphs"
78fi 133fi
79 134
80if [[ -n "${CABAL_USE_PROFILE}" ]]; then 135if [[ -n "${CABAL_USE_PROFILE}" ]]; then
81 IUSE="${IUSE} profile" 136 IUSE="${IUSE} profile"
82fi 137fi
83 138
139if [[ -n "${CABAL_TEST_SUITE}" ]]; then
140 IUSE="${IUSE} test"
141fi
142
84# We always use a standalone version of Cabal, rather than the one that comes 143# We always use a standalone version of Cabal, rather than the one that comes
85# with GHC. But of course we can't depend on cabal when building cabal itself. 144# with GHC. But of course we can't depend on cabal when building cabal itself.
145if [[ -z ${CABAL_MIN_VERSION} ]]; then
146 CABAL_MIN_VERSION=1.1.4
147fi
148if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then
149 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
150fi
151
152# returns the version of cabal currently in use.
153# Rarely it's handy to pin cabal version from outside.
154: ${_CABAL_VERSION_CACHE:=""}
155cabal-version() {
156 if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
86if [[ -z "${CABAL_BOOTSTRAP}" ]]; then 157 if [[ "${CABAL_BOOTSTRAP}" ]]; then
87 DEPEND="${DEPEND} >=dev-haskell/cabal-1.1.3" 158 # We're bootstrapping cabal, so the cabal version is the version
159 # of this package itself.
160 _CABAL_VERSION_CACHE="${PV}"
161 elif [[ "${CABAL_FROM_GHC}" ]]; then
162 _CABAL_VERSION_CACHE="$(ghc-cabal-version)"
163 else
164 # We ask portage, not ghc, so that we only pick up
165 # portage-installed cabal versions.
166 _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
167 fi
88fi 168 fi
89 169 echo "${_CABAL_VERSION_CACHE}"
170}
90 171
91cabal-bootstrap() { 172cabal-bootstrap() {
92 local setupmodule 173 local setupmodule
93 local cabalversion 174 local cabalpackage
175 local setup_bootstrap_args=()
176
94 if [[ -f "${S}/Setup.lhs" ]]; then 177 if [[ -f "${S}/Setup.lhs" ]]; then
95 setupmodule="${S}/Setup.lhs" 178 setupmodule="${S}/Setup.lhs"
179 elif [[ -f "${S}/Setup.hs" ]]; then
180 setupmodule="${S}/Setup.hs"
96 else 181 else
97 if [[ -f "${S}/Setup.hs" ]]; then
98 setupmodule="${S}/Setup.hs"
99 else
100 die "No Setup.lhs or Setup.hs found" 182 die "No Setup.lhs or Setup.hs found"
101 fi 183 fi
184
185 if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
186 eerror "The package dev-haskell/cabal is not correctly installed for"
187 eerror "the currently active version of ghc ($(ghc-version)). Please"
188 eerror "run haskell-updater or re-build dev-haskell/cabal."
189 die "cabal is not correctly installed"
102 fi 190 fi
103 191
104 # We build the setup program using the latest version of 192 # We build the setup program using the latest version of
105 # cabal that we have installed 193 # cabal that we have installed
106 cabalversion=$(ghc-bestcabalversion) 194 cabalpackage=Cabal-$(cabal-version)
107 einfo "Using ${cabalversion}." 195 einfo "Using cabal-$(cabal-version)."
108 $(ghc-getghc) -package "${cabalversion}" --make "${setupmodule}" -o setup \ 196
197 if $(ghc-supports-threaded-runtime); then
198 # Cabal has a bug that deadlocks non-threaded RTS:
199 # https://bugs.gentoo.org/537500
200 # https://github.com/haskell/cabal/issues/2398
201 setup_bootstrap_args+=(-threaded)
202 fi
203
204 make_setup() {
205 set -- -package "${cabalpackage}" --make "${setupmodule}" \
206 "${setup_bootstrap_args[@]}" \
207 ${HCFLAGS} \
208 ${GHC_BOOTSTRAP_FLAGS} \
209 "$@" \
210 -o setup
211 echo $(ghc-getghc) "$@"
212 $(ghc-getghc) "$@"
213 }
214 if $(ghc-supports-shared-libraries); then
215 # # some custom build systems might use external libraries,
216 # # for which we don't have shared libs, so keep static fallback
217 # bug #411789, http://hackage.haskell.org/trac/ghc/ticket/5743#comment:3
218 # http://hackage.haskell.org/trac/ghc/ticket/7062
219 # http://hackage.haskell.org/trac/ghc/ticket/3072
220 # ghc does not set RPATH for extralibs, thus we do it ourselves by hands
221 einfo "Prepending $(ghc-libdir) to LD_LIBRARY_PATH"
222 if [[ ${CHOST} != *-darwin* ]]; then
223 LD_LIBRARY_PATH="$(ghc-libdir)${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}"
224 export LD_LIBRARY_PATH
225 else
226 DYLD_LIBRARY_PATH="$(ghc-libdir)${DYLD_LIBRARY_PATH:+:}${DYLD_LIBRARY_PATH}"
227 export DYLD_LIBRARY_PATH
228 fi
229 { make_setup -dynamic "$@" && ./setup --help >/dev/null; } ||
109 || die "compiling ${setupmodule} failed" 230 make_setup "$@" || die "compiling ${setupmodule} failed"
231 else
232 make_setup "$@" || die "compiling ${setupmodule} failed"
233 fi
234}
235
236cabal-mksetup() {
237 local setupdir=${1:-${S}}
238 local setup_src=${setupdir}/Setup.hs
239
240 rm -vf "${setupdir}"/Setup.{lhs,hs}
241 elog "Creating 'Setup.hs' for 'Simple' build type."
242
243 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
244 > "${setup_src}" || die "failed to create default Setup.hs"
245}
246
247cabal-hscolour() {
248 set -- hscolour "$@"
249 echo ./setup "$@"
250 ./setup "$@" || die "setup hscolour failed"
110} 251}
111 252
112cabal-haddock() { 253cabal-haddock() {
113 ./setup haddock || die "setup haddock failed" 254 set -- haddock "$@"
255 echo ./setup "$@"
256 ./setup "$@" || die "setup haddock failed"
257}
258
259cabal-hoogle() {
260 ewarn "hoogle USE flag requires doc USE flag, building without hoogle"
261}
262
263cabal-hscolour-haddock() {
264 # --hyperlink-source implies calling 'setup hscolour'
265 set -- haddock --hyperlink-source
266 echo ./setup "$@"
267 ./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed"
268}
269
270cabal-hoogle-haddock() {
271 set -- haddock --hoogle
272 echo ./setup "$@"
273 ./setup "$@" || die "setup haddock --hoogle failed"
274}
275
276cabal-hoogle-hscolour-haddock() {
277 cabal-hscolour-haddock
278 cabal-hoogle-haddock
279}
280
281cabal-hoogle-hscolour() {
282 ewarn "hoogle USE flag requires doc USE flag, building without hoogle"
283 cabal-hscolour
284}
285
286cabal-die-if-nonempty() {
287 local breakage_type=$1
288 shift
289
290 [[ "${#@}" == 0 ]] && return 0
291 eerror "Detected ${breakage_type} packages: ${@}"
292 die "//==-- Please, run 'haskell-updater' to fix ${breakage_type} packages --==//"
293}
294
295cabal-show-brokens() {
296 elog "ghc-pkg check: 'checking for other broken packages:'"
297 # pretty-printer
298 $(ghc-getghcpkg) check 2>&1 \
299 | egrep -v '^Warning: haddock-(html|interfaces): ' \
300 | egrep -v '^Warning: include-dirs: ' \
301 | head -n 20
302
303 cabal-die-if-nonempty 'broken' \
304 $($(ghc-getghcpkg) check --simple-output)
305}
306
307cabal-show-old() {
308 cabal-die-if-nonempty 'outdated' \
309 $("${EPREFIX}"/usr/sbin/haskell-updater --quiet --upgrade --list-only)
310}
311
312cabal-show-brokens-and-die() {
313 cabal-show-brokens
314 cabal-show-old
315
316 die "$@"
114} 317}
115 318
116cabal-configure() { 319cabal-configure() {
320 local cabalconf=()
321 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
322
323 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
324 # We use the bundled with GHC version if exists
325 # Haddock is very picky about index files
326 # it generates for ghc's base and other packages.
327 local p=${EPREFIX}/usr/bin/haddock-ghc-$(ghc-version)
328 if [[ -f $p ]]; then
329 cabalconf+=(--with-haddock="${p}")
330 else
331 cabalconf+=(--with-haddock=${EPREFIX}/usr/bin/haddock)
332 fi
333 fi
117 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then 334 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
118 cabalconf="${cabalconf} --enable-executable-profiling" 335 cabalconf+=(--enable-library-profiling)
336 fi
337 if [[ -n "${CABAL_USE_ALEX}" ]]; then
338 cabalconf+=(--with-alex=${EPREFIX}/usr/bin/alex)
339 fi
340
341 if [[ -n "${CABAL_USE_HAPPY}" ]]; then
342 cabalconf+=(--with-happy=${EPREFIX}/usr/bin/happy)
343 fi
344
345 if [[ -n "${CABAL_USE_C2HS}" ]]; then
346 cabalconf+=(--with-c2hs=${EPREFIX}/usr/bin/c2hs)
347 fi
348 if [[ -n "${CABAL_USE_CPPHS}" ]]; then
349 cabalconf+=(--with-cpphs=${EPREFIX}/usr/bin/cpphs)
350 fi
351 if [[ -n "${CABAL_TEST_SUITE}" ]]; then
352 cabalconf+=($(use_enable test tests))
353 fi
354
355 if [[ -n "${CABAL_GHC_CONSTRAINT}" ]]; then
356 cabalconf+=($(cabal-constraint "ghc"))
357 fi
358
359 local option
360 for option in ${HCFLAGS}
361 do
362 cabalconf+=(--ghc-option="$option")
363 done
364
365 # parallel on all available cores
366 if ghc-supports-parallel-make; then
367 local max_jobs=$(makeopts_jobs)
368
369 # limit to very small value, as parallelism
370 # helps slightly, but makes things severely worse
371 # when amount of threads is Very Large.
372 [[ ${max_jobs} -gt 4 ]] && max_jobs=4
373
374 cabalconf+=(--ghc-option=-j"$max_jobs")
375 fi
376
377 # Building GHCi libs on ppc64 causes "TOC overflow".
378 if use ppc64; then
379 cabalconf+=(--disable-library-for-ghci)
380 fi
381
382 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
383 # so translate LDFLAGS to ghc parameters (without filtering)
384 local flag
385 for flag in $CFLAGS; do cabalconf+=(--ghc-option="-optc$flag"); done
386 for flag in $LDFLAGS; do cabalconf+=(--ghc-option="-optl$flag"); done
387
388 # disable executable stripping for the executables, as portage will
389 # strip by itself, and pre-stripping gives a QA warning.
390 # cabal versions previous to 1.4 does not strip executables, and does
391 # not accept the flag.
392 # this fixes numerous bugs, amongst them;
393 # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
394 cabalconf+=(--disable-executable-stripping)
395
396 cabalconf+=(--docdir="${EPREFIX}"/usr/share/doc/${PF})
397 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
398 # it's better if the configure chatter is in the build logs:
399 cabalconf+=(--verbose)
400
401 # We build shared version of our Cabal where ghc ships it's shared
402 # version of it. We will link ./setup as dynamic binary againt Cabal later.
403 [[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
404 $(ghc-supports-shared-libraries) && \
405 cabalconf+=(--enable-shared)
406
407 if $(ghc-supports-shared-libraries); then
408 # Experimental support for dynamically linked binaries.
409 # We are enabling it since 7.10.1_rc3
410 if version_is_at_least "7.10.0.20150316" "$(ghc-version)"; then
411 # we didn't enable it before as it was not stable on all arches
412 cabalconf+=(--enable-shared)
413 # Known to break on ghc-7.8/Cabal-1.18
414 # https://ghc.haskell.org/trac/ghc/ticket/9625
415 cabalconf+=(--enable-executable-dynamic)
119 fi 416 fi
417 fi
120 418
419 # --sysconfdir appeared in Cabal-1.18+
420 if ./setup configure --help | grep -q -- --sysconfdir; then
421 cabalconf+=(--sysconfdir="${EPREFIX}"/etc)
422 fi
423
424 # appeared in Cabal-1.18+ (see '--disable-executable-stripping')
425 if ./setup configure --help | grep -q -- --disable-library-stripping; then
426 cabalconf+=(--disable-library-stripping)
427 fi
428
121 ./setup configure \ 429 set -- configure \
122 --ghc --prefix=/usr \ 430 --ghc --prefix="${EPREFIX}"/usr \
123 --with-compiler="$(ghc-getghc)" \ 431 --with-compiler="$(ghc-getghc)" \
124 --with-hc-pkg="$(ghc-getghcpkg)" \ 432 --with-hc-pkg="$(ghc-getghcpkg)" \
433 --prefix="${EPREFIX}"/usr \
434 --libdir="${EPREFIX}"/usr/$(get_libdir) \
435 --libsubdir=${P}/ghc-$(ghc-version) \
436 --datadir="${EPREFIX}"/usr/share/ \
437 --datasubdir=${P}/ghc-$(ghc-version) \
125 ${cabalconf} \ 438 "${cabalconf[@]}" \
126 "$@" || die "setup configure failed" 439 ${CABAL_CONFIGURE_FLAGS} \
440 ${CABAL_EXTRA_CONFIGURE_FLAGS} \
441 "$@"
442 echo ./setup "$@"
443 ./setup "$@" || cabal-show-brokens-and-die "setup configure failed"
127} 444}
128 445
129cabal-build() { 446cabal-build() {
130 ./setup build \ 447 set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@"
448 echo ./setup "$@"
449 ./setup "$@" \
131 || die "setup build failed" 450 || die "setup build failed"
132} 451}
133 452
134cabal-copy() { 453cabal-copy() {
135 ./setup copy \ 454 has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D}
136 --copy-prefix="${D}/usr" \ 455
456 set -- copy --destdir="${D}" "$@"
457 echo ./setup "$@"
137 || die "setup copy failed" 458 ./setup "$@" || die "setup copy failed"
138 459
139 # cabal is a bit eager about creating dirs, 460 # cabal is a bit eager about creating dirs,
140 # so remove them if they are empty 461 # so remove them if they are empty
141 rmdir "${D}/usr/bin" 2> /dev/null 462 rmdir "${ED}/usr/bin" 2> /dev/null
142
143 # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
144 # no workaround.
145 # set the +x permission on executables
146 if [[ -d "${D}/usr/bin" ]] ; then
147 chmod +x "${D}/usr/bin/"*
148 fi
149} 463}
150 464
151cabal-pkg() { 465cabal-pkg() {
152 # This does not actually register since we're using /usr/bin/true instead 466 # This does not actually register since we're using true instead
153 # of ghc-pkg. So it just leaves the .installed-pkg-config and we can 467 # of ghc-pkg. So it just leaves the .conf file and we can
154 # register that ourselves (if it exists). 468 # register that ourselves (if it exists).
155 sed -i 's:ghc-pkg:/usr/bin/true:' .setup-config 469
156 ./setup register || die "setup register failed" 470 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
157 if [[ -f .installed-pkg-config ]]; then 471 # Newer cabal can generate a package conf for us:
158 ghc-setup-pkg .installed-pkg-config 472 ./setup register --gen-pkg-config="${T}/${P}.conf"
159 ghc-install-pkg 473 ghc-install-pkg "${T}/${P}.conf"
160 fi 474 fi
475}
476
477# Some cabal libs are bundled along with some versions of ghc
478# eg filepath-1.0 comes with ghc-6.6.1
479# by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
480# when building with this version of ghc, the ebuild is a dummy that is it will
481# install no files since the package is already included with ghc.
482# However portage still records the dependency and we can upgrade the package
483# to a later one that's not included with ghc.
484# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
485# Those versions are taken as-is from ghc `--numeric-version`.
486# Package manager versions are also supported:
487# CABAL_CORE_LIB_GHC_PV="7.10.* PM:7.8.4-r1".
488cabal-is-dummy-lib() {
489 local bin_ghc_version=$(ghc-version)
490 local pm_ghc_version=$(ghc-pm-version)
491
492 for version in ${CABAL_CORE_LIB_GHC_PV}; do
493 [[ "${bin_ghc_version}" == ${version} ]] && return 0
494 [[ "${pm_ghc_version}" == ${version} ]] && return 0
495 done
496
497 return 1
161} 498}
162 499
163# exported function: check if cabal is correctly installed for 500# exported function: check if cabal is correctly installed for
164# the currently active ghc (we cannot guarantee this with portage) 501# the currently active ghc (we cannot guarantee this with portage)
165haskell-cabal_pkg_setup() { 502haskell-cabal_pkg_setup() {
166 if [[ -z "${CABAL_BOOTSTRAP}" ]] && ! ghc-sanecabal "1.1.3"; then 503 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
167 eerror "The package dev-haskell/cabal is not correctly installed for" 504 [[ ${RDEPEND} == *dev-lang/ghc* ]] || eqawarn "QA Notice: A library does not have runtime dependency on dev-lang/ghc."
168 eerror "the currently active version of ghc ($(ghc-version)). Please"
169 eerror "run ghc-updater or re-emerge dev-haskell/cabal."
170 die "cabal is not correctly installed"
171 fi 505 fi
506 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
507 eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES."
508 fi
509 if [[ -n "${CABAL_UNKNOWN}" ]]; then
510 eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
511 fi
512 if cabal-is-dummy-lib; then
513 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
514 fi
515}
516
517haskell-cabal_src_configure() {
518 cabal-is-dummy-lib && return
519
520 pushd "${S}" > /dev/null
521
522 cabal-bootstrap
523
524 cabal-configure "$@"
525
526 popd > /dev/null
527}
528
529# exported function: nice alias
530cabal_src_configure() {
531 haskell-cabal_src_configure "$@"
172} 532}
173 533
174# exported function: cabal-style bootstrap configure and compile 534# exported function: cabal-style bootstrap configure and compile
175cabal_src_compile() { 535cabal_src_compile() {
176 cabal-bootstrap 536 # it's a common mistake when one bumps ebuild to EAPI="2" (and upper)
177 cabal-configure 537 # and forgets to separate src_compile() to src_configure()/src_compile().
538 # Such error leads to default src_configure and we lose all passed flags.
539 if ! has "${EAPI:-0}" 0 1; then
540 local passed_flag
541 for passed_flag in "$@"; do
542 [[ ${passed_flag} == --flags=* ]] && \
543 eqawarn "QA Notice: Cabal option '${passed_flag}' has effect only in src_configure()"
544 done
545 fi
546
547 cabal-is-dummy-lib && return
548
549 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
178 cabal-build 550 cabal-build
179 551
180 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 552 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
553 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
554 if [[ -n "${CABAL_USE_HOOGLE}" ]] && use hoogle; then
555 # hoogle, hscolour and haddock
556 cabal-hoogle-hscolour-haddock
557 else
558 # haddock and hscolour
559 cabal-hscolour-haddock
560 fi
561 else
562 if [[ -n "${CABAL_USE_HOOGLE}" ]] && use hoogle; then
563 # hoogle and haddock
564 cabal-hoogle-haddock
565 else
566 # just haddock
181 cabal-haddock 567 cabal-haddock
568 fi
182 fi 569 fi
570 else
571 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
572 if [[ -n "${CABAL_USE_HOOGLE}" ]] && use hoogle; then
573 # hoogle and hscolour
574 cabal-hoogle-hscolour
575 else
576 # just hscolour
577 cabal-hscolour
578 fi
579 else
580 if [[ -n "${CABAL_USE_HOOGLE}" ]] && use hoogle; then
581 # just hoogle
582 cabal-hoogle
583 fi
584 fi
585 fi
183} 586}
587
184haskell-cabal_src_compile() { 588haskell-cabal_src_compile() {
589 pushd "${S}" > /dev/null
590
185 cabal_src_compile 591 cabal_src_compile "$@"
592
593 popd > /dev/null
594}
595
596haskell-cabal_src_test() {
597 pushd "${S}" > /dev/null
598
599 if cabal-is-dummy-lib; then
600 einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
601 else
602 einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
603 set -- test "$@"
604 echo ./setup "$@"
605 ./setup "$@" || die "cabal test failed"
606 fi
607
608 popd > /dev/null
186} 609}
187 610
188# exported function: cabal-style copy and register 611# exported function: cabal-style copy and register
189cabal_src_install() { 612cabal_src_install() {
613 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
614
615 if ! cabal-is-dummy-lib; then
190 cabal-copy 616 cabal-copy
191 cabal-pkg 617 cabal-pkg
192
193 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
194 dohtml dist/doc/html/*
195 fi 618 fi
619
620 # create a dummy local package conf file for haskell-updater
621 # if it does not exist (dummy libraries and binaries w/o libraries)
622 local ghc_confdir_with_prefix="$(ghc-confdir)"
623 # remove EPREFIX
624 dodir ${ghc_confdir_with_prefix#${EPREFIX}}
625 local hint_db="${D}/$(ghc-confdir)"
626 local hint_file="${hint_db}/${PF}.conf"
627 mkdir -p "${hint_db}" || die
628 touch "${hint_file}" || die
196} 629}
630
197haskell-cabal_src_install() { 631haskell-cabal_src_install() {
632 pushd "${S}" > /dev/null
633
198 cabal_src_install 634 cabal_src_install
199}
200 635
201EXPORT_FUNCTIONS pkg_setup src_compile src_install 636 popd > /dev/null
637}
638
639haskell-cabal_pkg_postinst() {
640 ghc-package_pkg_postinst
641}
642
643haskell-cabal_pkg_postrm() {
644 ghc-package_pkg_postrm
645}
646
647# @FUNCTION: cabal_flag
648# @DESCRIPTION:
649# ebuild.sh:use_enable() taken as base
650#
651# Usage examples:
652#
653# CABAL_CONFIGURE_FLAGS=$(cabal_flag gui)
654# leads to "--flags=gui" or "--flags=-gui" (useflag 'gui')
655#
656# CABAL_CONFIGURE_FLAGS=$(cabal_flag gtk gui)
657# also leads to "--flags=gui" or " --flags=-gui" (useflag 'gtk')
658#
659cabal_flag() {
660 if [[ -z "$1" ]]; then
661 echo "!!! cabal_flag() called without a parameter." >&2
662 echo "!!! cabal_flag() <USEFLAG> [<cabal_flagname>]" >&2
663 return 1
664 fi
665
666 local UWORD=${2:-$1}
667
668 if use "$1"; then
669 echo "--flags=${UWORD}"
670 else
671 echo "--flags=-${UWORD}"
672 fi
673
674 return 0
675}
676
677# @FUNCTION: cabal_chdeps
678# @DESCRIPTION:
679# Allows easier patching of $CABAL_FILE (${S}/${PN}.cabal by default)
680# depends
681#
682# Accepts argument list as pairs of substitutions: <from-string> <to-string>...
683#
684# Dies on error.
685#
686# Usage examples:
687#
688# src_prepare() {
689# cabal_chdeps \
690# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7' \
691# 'containers ==0.4.*' 'containers >= 0.4 && < 0.6'
692#}
693# or
694# src_prepare() {
695# CABAL_FILE=${S}/${MY_PN}.cabal cabal_chdeps \
696# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7'
697# CABAL_FILE=${S}/${MY_PN}-tools.cabal cabal_chdeps \
698# 'base == 3.*' 'base >= 4.2 && < 4.7'
699#}
700#
701cabal_chdeps() {
702 local cabal_fn=${MY_PN:-${PN}}.cabal
703 local cf=${CABAL_FILE:-${S}/${cabal_fn}}
704 local from_ss # ss - substring
705 local to_ss
706 local orig_c # c - contents
707 local new_c
708
709 [[ -f $cf ]] || die "cabal file '$cf' does not exist"
710
711 orig_c=$(< "$cf")
712
713 while :; do
714 from_pat=$1
715 to_str=$2
716
717 [[ -n ${from_pat} ]] || break
718 [[ -n ${to_str} ]] || die "'${from_str}' does not have 'to' part"
719
720 einfo "CHDEP: '${from_pat}' -> '${to_str}'"
721
722 # escape pattern-like symbols
723 from_pat=${from_pat//\*/\\*}
724 from_pat=${from_pat//\[/\\[}
725
726 new_c=${orig_c//${from_pat}/${to_str}}
727
728 if [[ -n $CABAL_DEBUG_LOOSENING ]]; then
729 echo "${orig_c}" >"${T}/${cf}".pre
730 echo "${new_c}" >"${T}/${cf}".post
731 diff -u "${T}/${cf}".{pre,post}
732 fi
733
734 [[ "${orig_c}" == "${new_c}" ]] && die "no trigger for '${from_pat}'"
735 orig_c=${new_c}
736 shift
737 shift
738 done
739
740 echo "${new_c}" > "$cf" ||
741 die "failed to update"
742}
743
744# @FUNCTION: cabal-constraint
745# @DESCRIPTION:
746# Allowes to set contraint to the libraries that are
747# used by specified package
748cabal-constraint() {
749 while read p v ; do
750 echo "--constraint \"$p == $v\""
751 done < $(ghc-pkgdeps ${1})
752}
753
754# @FUNCTION: replace-hcflags
755# @USAGE: <old> <new>
756# @DESCRIPTION:
757# Replace the <old> flag with <new> in HCFLAGS. Accepts shell globs for <old>.
758# The implementation is picked from flag-o-matic.eclass:replace-flags()
759replace-hcflags() {
760 [[ $# != 2 ]] && die "Usage: replace-hcflags <old flag> <new flag>"
761
762 local f new=()
763 for f in ${HCFLAGS} ; do
764 # Note this should work with globs like -O*
765 if [[ ${f} == ${1} ]]; then
766 einfo "HCFLAGS: replacing '${f}' to '${2}'"
767 f=${2}
768 fi
769 new+=( "${f}" )
770 done
771 export HCFLAGS="${new[*]}"
772
773 return 0
774}

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