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Revision 1.8 Revision 1.46
1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2014 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 1.8 2006/10/04 17:49:20 kosmikus Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.46 2014/06/27 07:26:18 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 36inherit eutils ghc-package multilib multiprocessing
44 37
38# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS
39# @DESCRIPTION:
40# User-specified additional parameters passed to 'setup configure'.
41# example: /etc/portage/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/portage/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/portage/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: ${CABAL_DEBUG_LOOSENING:=}
63
64HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"
65
66# 'dev-haskell/cabal' passes those options with ./configure-based
67# configuration, but most packages don't need/don't accept it:
68# #515362, #515362
69QA_CONFIGURE_OPTIONS+=" --with-compiler --with-hc --with-hc-pkg --with-gcc"
70
71case "${EAPI:-0}" in
72 2|3|4|5) HASKELL_CABAL_EXPF+=" src_configure" ;;
73 *) ;;
74esac
75
76EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
45 77
46for feature in ${CABAL_FEATURES}; do 78for feature in ${CABAL_FEATURES}; do
47 case ${feature} in 79 case ${feature} in
48 haddock) CABAL_USE_HADDOCK=yes;; 80 haddock) CABAL_USE_HADDOCK=yes;;
81 hscolour) CABAL_USE_HSCOLOUR=yes;;
82 hoogle) CABAL_USE_HOOGLE=yes;;
49 alex) CABAL_USE_ALEX=yes;; 83 alex) CABAL_USE_ALEX=yes;;
50 happy) CABAL_USE_HAPPY=yes;; 84 happy) CABAL_USE_HAPPY=yes;;
51 c2hs) CABAL_USE_C2HS=yes;; 85 c2hs) CABAL_USE_C2HS=yes;;
52 cpphs) CABAL_USE_CPPHS=yes;; 86 cpphs) CABAL_USE_CPPHS=yes;;
53 profile) CABAL_USE_PROFILE=yes;; 87 profile) CABAL_USE_PROFILE=yes;;
54 bootstrap) CABAL_BOOTSTRAP=yes;; 88 bootstrap) CABAL_BOOTSTRAP=yes;;
55 bin) CABAL_HAS_BINARIES=yes;; 89 bin) CABAL_HAS_BINARIES=yes;;
56 lib) CABAL_HAS_LIBRARIES=yes;; 90 lib) CABAL_HAS_LIBRARIES=yes;;
91 nocabaldep) CABAL_FROM_GHC=yes;;
92 test-suite) CABAL_TEST_SUITE=yes;;
57 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";; 93 *) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
58 esac 94 esac
59done 95done
60 96
61if [[ -n "${CABAL_USE_HADDOCK}" ]]; then 97if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
62 IUSE="${IUSE} doc" 98 IUSE="${IUSE} doc"
99 # don't require depend on itself to build docs.
100 # ebuild bootstraps docs from just built binary
101 [[ ${CATEGORY}/${PN} = "dev-haskell/haddock" ]] || DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
102fi
103
104if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then
105 IUSE="${IUSE} hscolour"
63 DEPEND="${DEPEND} doc? ( dev-haskell/haddock )" 106 DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )"
64 cabalconf="${cabalconf} --with-haddock=/usr/bin/haddock"
65fi 107fi
66 108
67if [[ -n "${CABAL_USE_ALEX}" ]]; then 109if [[ -n "${CABAL_USE_ALEX}" ]]; then
68 DEPEND="${DEPEND} dev-haskell/alex" 110 DEPEND="${DEPEND} dev-haskell/alex"
69 cabalconf="${cabalconf} --with-alex=/usr/bin/alex"
70fi 111fi
71 112
72if [[ -n "${CABAL_USE_HAPPY}" ]]; then 113if [[ -n "${CABAL_USE_HAPPY}" ]]; then
73 DEPEND="${DEPEND} dev-haskell/happy" 114 DEPEND="${DEPEND} dev-haskell/happy"
74 cabalconf="${cabalconf} --with-happy=/usr/bin/happy"
75fi 115fi
76 116
77if [[ -n "${CABAL_USE_C2HS}" ]]; then 117if [[ -n "${CABAL_USE_C2HS}" ]]; then
78 DEPEND="${DEPEND} dev-haskell/c2hs" 118 DEPEND="${DEPEND} dev-haskell/c2hs"
79 cabalconf="${cabalconf} --with-c2hs=/usr/bin/c2hs"
80fi 119fi
81 120
82if [[ -n "${CABAL_USE_CPPHS}" ]]; then 121if [[ -n "${CABAL_USE_CPPHS}" ]]; then
83 DEPEND="${DEPEND} dev-haskell/cpphs" 122 DEPEND="${DEPEND} dev-haskell/cpphs"
84 cabalconf="${cabalconf} --with-cpphs=/usr/bin/cpphs"
85fi 123fi
86 124
87if [[ -n "${CABAL_USE_PROFILE}" ]]; then 125if [[ -n "${CABAL_USE_PROFILE}" ]]; then
88 IUSE="${IUSE} profile" 126 IUSE="${IUSE} profile"
89fi 127fi
90 128
129if [[ -n "${CABAL_TEST_SUITE}" ]]; then
130 IUSE="${IUSE} test"
131fi
132
91# We always use a standalone version of Cabal, rather than the one that comes 133# We always use a standalone version of Cabal, rather than the one that comes
92# with GHC. But of course we can't depend on cabal when building cabal itself. 134# with GHC. But of course we can't depend on cabal when building cabal itself.
135if [[ -z ${CABAL_MIN_VERSION} ]]; then
136 CABAL_MIN_VERSION=1.1.4
137fi
138if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then
139 DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
140fi
141
142# returns the version of cabal currently in use
143_CABAL_VERSION_CACHE=""
144cabal-version() {
145 if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
93if [[ -z "${CABAL_BOOTSTRAP}" ]]; then 146 if [[ "${CABAL_BOOTSTRAP}" ]]; then
94 DEPEND="${DEPEND} >=dev-haskell/cabal-1.1.3" 147 # We're bootstrapping cabal, so the cabal version is the version
148 # of this package itself.
149 _CABAL_VERSION_CACHE="${PV}"
150 elif [[ "${CABAL_FROM_GHC}" ]]; then
151 local cabal_package=$(echo "$(ghc-libdir)"/Cabal-*)
152 # /path/to/ghc/Cabal-${VER} -> ${VER}
153 _CABAL_VERSION_CACHE="${cabal_package/*Cabal-/}"
154 else
155 # We ask portage, not ghc, so that we only pick up
156 # portage-installed cabal versions.
157 _CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
158 fi
95fi 159 fi
96 160 echo "${_CABAL_VERSION_CACHE}"
97# Libraries require GHC to be installed. 161}
98if [[ -n "${CABAL_HAS_LIBRARIES}" ]]; then
99 RDEPEND="${RDEPEND} virtual/ghc"
100fi
101 162
102cabal-bootstrap() { 163cabal-bootstrap() {
103 local setupmodule 164 local setupmodule
104 local cabalversion 165 local cabalpackage
105 if [[ -f "${S}/Setup.lhs" ]]; then 166 if [[ -f "${S}/Setup.lhs" ]]; then
106 setupmodule="${S}/Setup.lhs" 167 setupmodule="${S}/Setup.lhs"
168 elif [[ -f "${S}/Setup.hs" ]]; then
169 setupmodule="${S}/Setup.hs"
107 else 170 else
108 if [[ -f "${S}/Setup.hs" ]]; then
109 setupmodule="${S}/Setup.hs"
110 else
111 die "No Setup.lhs or Setup.hs found" 171 die "No Setup.lhs or Setup.hs found"
112 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"
113 fi 179 fi
114 180
115 # We build the setup program using the latest version of 181 # We build the setup program using the latest version of
116 # cabal that we have installed 182 # cabal that we have installed
117 cabalversion=$(ghc-bestcabalversion) 183 cabalpackage=Cabal-$(cabal-version)
118 einfo "Using ${cabalversion}." 184 einfo "Using cabal-$(cabal-version)."
119 $(ghc-getghc) -package "${cabalversion}" --make "${setupmodule}" -o setup \ 185
186 make_setup() {
187 set -- -package "${cabalpackage}" --make "${setupmodule}" \
188 ${HCFLAGS} \
189 ${GHC_BOOTSTRAP_FLAGS} \
190 "$@" \
191 -o setup
192 echo $(ghc-getghc) "$@"
193 $(ghc-getghc) "$@"
194 }
195 if $(ghc-supports-shared-libraries); then
196 # # some custom build systems might use external libraries,
197 # # for which we don't have shared libs, so keep static fallback
198 # bug #411789, http://hackage.haskell.org/trac/ghc/ticket/5743#comment:3
199 # http://hackage.haskell.org/trac/ghc/ticket/7062
200 # http://hackage.haskell.org/trac/ghc/ticket/3072
201 # ghc does not set RPATH for extralibs, thus we do it ourselves by hands
202 einfo "Prepending $(ghc-libdir) to LD_LIBRARY_PATH"
203 if [[ ${CHOST} != *-darwin* ]]; then
204 LD_LIBRARY_PATH="$(ghc-libdir)${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}"
205 export LD_LIBRARY_PATH
206 else
207 DYLD_LIBRARY_PATH="$(ghc-libdir)${DYLD_LIBRARY_PATH:+:}${DYLD_LIBRARY_PATH}"
208 export DYLD_LIBRARY_PATH
209 fi
210 { make_setup -dynamic "$@" && ./setup --help >/dev/null; } ||
120 || die "compiling ${setupmodule} failed" 211 make_setup "$@" || die "compiling ${setupmodule} failed"
212 else
213 make_setup "$@" || die "compiling ${setupmodule} failed"
214 fi
215}
216
217cabal-mksetup() {
218 local setupdir=${1:-${S}}
219 local setup_src=${setupdir}/Setup.hs
220
221 rm -vf "${setupdir}"/Setup.{lhs,hs}
222 elog "Creating 'Setup.hs' for 'Simple' build type."
223
224 echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
225 > "${setup_src}" || die "failed to create default Setup.hs"
226}
227
228cabal-hscolour() {
229 set -- hscolour "$@"
230 echo ./setup "$@"
231 ./setup "$@" || die "setup hscolour failed"
121} 232}
122 233
123cabal-haddock() { 234cabal-haddock() {
124 ./setup haddock || die "setup haddock failed" 235 set -- haddock "$@"
236 echo ./setup "$@"
237 ./setup "$@" || die "setup haddock failed"
238}
239
240cabal-hscolour-haddock() {
241 # --hyperlink-source implies calling 'setup hscolour'
242 set -- haddock --hyperlink-source
243 echo ./setup "$@"
244 ./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed"
245}
246
247cabal-die-if-nonempty() {
248 local breakage_type=$1
249 shift
250
251 [[ "${#@}" == 0 ]] && return 0
252 eerror "Detected ${breakage_type} packages: ${@}"
253 die "//==-- Please, run 'haskell-updater' to fix ${breakage_type} packages --==//"
254}
255
256cabal-show-brokens() {
257 elog "ghc-pkg check: 'checking for other broken packages:'"
258 # pretty-printer
259 $(ghc-getghcpkg) check 2>&1 \
260 | egrep -v '^Warning: haddock-(html|interfaces): ' \
261 | egrep -v '^Warning: include-dirs: ' \
262 | head -n 20
263
264 cabal-die-if-nonempty 'broken' \
265 $($(ghc-getghcpkg) check --simple-output)
266}
267
268cabal-show-old() {
269 cabal-die-if-nonempty 'outdated' \
270 $("${EPREFIX}"/usr/sbin/haskell-updater --quiet --upgrade --list-only)
271}
272
273cabal-show-brokens-and-die() {
274 cabal-show-brokens
275 cabal-show-old
276
277 die "$@"
125} 278}
126 279
127cabal-configure() { 280cabal-configure() {
281 local cabalconf=()
282 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
283
284 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
285 cabalconf+=(--with-haddock=${EPREFIX}/usr/bin/haddock)
286 fi
128 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then 287 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
129 cabalconf="${cabalconf} --enable-executable-profiling";
130 cabalconf="${cabalconf} --enable-library-profiling" 288 cabalconf+=(--enable-library-profiling)
131 fi 289 fi
290 if [[ -n "${CABAL_USE_ALEX}" ]]; then
291 cabalconf+=(--with-alex=${EPREFIX}/usr/bin/alex)
292 fi
293
294 if [[ -n "${CABAL_USE_HAPPY}" ]]; then
295 cabalconf+=(--with-happy=${EPREFIX}/usr/bin/happy)
296 fi
297
298 if [[ -n "${CABAL_USE_C2HS}" ]]; then
299 cabalconf+=(--with-c2hs=${EPREFIX}/usr/bin/c2hs)
300 fi
301 if [[ -n "${CABAL_USE_CPPHS}" ]]; then
302 cabalconf+=(--with-cpphs=${EPREFIX}/usr/bin/cpphs)
303 fi
304 if [[ -n "${CABAL_TEST_SUITE}" ]]; then
305 cabalconf+=($(use_enable test tests))
306 fi
307
308 local option
309 for option in ${HCFLAGS}
310 do
311 cabalconf+=(--ghc-option="$option")
312 done
313
314 # parallel on all available cores
315 if ghc-supports-parallel-make; then
316 local max_jobs=$(makeopts_jobs)
317
318 # limit to very small value, as parallelism
319 # helps slightly, but makes things severely worse
320 # when amount of threads is Very Large.
321 [[ ${max_jobs} -gt 4 ]] && max_jobs=4
322
323 cabalconf+=(--ghc-option=-j"$max_jobs")
324 fi
325
132 # Building GHCi libs on ppc64 causes "TOC overflow". 326 # Building GHCi libs on ppc64 causes "TOC overflow".
133 if use ppc64; then 327 if use ppc64; then
134 cabalconf="${cabalconf} --disable-library-for-ghci" 328 cabalconf+=(--disable-library-for-ghci)
329 fi
330
331 # currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
332 # so translate LDFLAGS to ghc parameters (without filtering)
333 local flag
334 for flag in $LDFLAGS; do cabalconf+=(--ghc-option="-optl$flag"); done
335
336 # disable executable stripping for the executables, as portage will
337 # strip by itself, and pre-stripping gives a QA warning.
338 # cabal versions previous to 1.4 does not strip executables, and does
339 # not accept the flag.
340 # this fixes numerous bugs, amongst them;
341 # bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
342 cabalconf+=(--disable-executable-stripping)
343
344 cabalconf+=(--docdir="${EPREFIX}"/usr/share/doc/${PF})
345 # As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
346 # it's better if the configure chatter is in the build logs:
347 cabalconf+=(--verbose)
348
349 # We build shared version of our Cabal where ghc ships it's shared
350 # version of it. We will link ./setup as dynamic binary againt Cabal later.
351 [[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
352 $(ghc-supports-shared-libraries) && \
353 cabalconf+=(--enable-shared)
354
355 if $(ghc-supports-shared-libraries); then
356 # maybe a bit lower
357 if $(ghc-supports-dynamic-by-default); then
358 cabalconf+=(--enable-shared)
135 fi 359 fi
360 fi
136 361
362 # --sysconfdir appeared in Cabal-1.18+
363 if ./setup configure --help | grep -q -- --sysconfdir; then
364 cabalconf+=(--sysconfdir="${EPREFIX}"/etc)
365 fi
366
367 # appeared in Cabal-1.18+ (see '--disable-executable-stripping')
368 if ./setup configure --help | grep -q -- --disable-library-stripping; then
369 cabalconf+=(--disable-library-stripping)
370 fi
371
137 ./setup configure \ 372 set -- configure \
138 --ghc --prefix=/usr \ 373 --ghc --prefix="${EPREFIX}"/usr \
139 --with-compiler="$(ghc-getghc)" \ 374 --with-compiler="$(ghc-getghc)" \
140 --with-hc-pkg="$(ghc-getghcpkg)" \ 375 --with-hc-pkg="$(ghc-getghcpkg)" \
376 --prefix="${EPREFIX}"/usr \
377 --libdir="${EPREFIX}"/usr/$(get_libdir) \
378 --libsubdir=${P}/ghc-$(ghc-version) \
379 --datadir="${EPREFIX}"/usr/share/ \
380 --datasubdir=${P}/ghc-$(ghc-version) \
141 ${cabalconf} \ 381 "${cabalconf[@]}" \
142 ${CABAL_CONFIGURE_FLAGS} \ 382 ${CABAL_CONFIGURE_FLAGS} \
143 "$@" || die "setup configure failed" 383 ${CABAL_EXTRA_CONFIGURE_FLAGS} \
384 "$@"
385 echo ./setup "$@"
386 ./setup "$@" || cabal-show-brokens-and-die "setup configure failed"
144} 387}
145 388
146cabal-build() { 389cabal-build() {
147 ./setup build \ 390 set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@"
391 echo ./setup "$@"
392 ./setup "$@" \
148 || die "setup build failed" 393 || die "setup build failed"
149} 394}
150 395
151cabal-copy() { 396cabal-copy() {
152 ./setup copy \ 397 has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D}
153 --copy-prefix="${D}/usr" \ 398
399 set -- copy --destdir="${D}" "$@"
400 echo ./setup "$@"
154 || die "setup copy failed" 401 ./setup "$@" || die "setup copy failed"
155 402
156 # cabal is a bit eager about creating dirs, 403 # cabal is a bit eager about creating dirs,
157 # so remove them if they are empty 404 # so remove them if they are empty
158 rmdir "${D}/usr/bin" 2> /dev/null 405 rmdir "${ED}/usr/bin" 2> /dev/null
159
160 # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
161 # no workaround.
162 # set the +x permission on executables
163 if [[ -d "${D}/usr/bin" ]] ; then
164 chmod +x "${D}/usr/bin/"*
165 fi
166} 406}
167 407
168cabal-pkg() { 408cabal-pkg() {
169 # This does not actually register since we're using /usr/bin/true instead 409 # This does not actually register since we're using true instead
170 # of ghc-pkg. So it just leaves the .installed-pkg-config and we can 410 # of ghc-pkg. So it just leaves the .conf file and we can
171 # register that ourselves (if it exists). 411 # register that ourselves (if it exists).
172 local result
173 local err
174 412
175 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then 413 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
176 sed -i "s|$(ghc-getghcpkg)|/usr/bin/true|" .setup-config 414 # Newer cabal can generate a package conf for us:
177 ./setup register || die "setup register failed" 415 ./setup register --gen-pkg-config="${T}/${P}.conf"
178 if [[ -f .installed-pkg-config ]]; then 416 ghc-setup-pkg "${T}/${P}.conf"
179 ghc-setup-pkg .installed-pkg-config
180 ghc-install-pkg 417 ghc-install-pkg
181 else
182 die "setup register has not generated a package configuration file"
183 fi 418 fi
184 fi 419}
420
421# Some cabal libs are bundled along with some versions of ghc
422# eg filepath-1.0 comes with ghc-6.6.1
423# by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
424# when building with this version of ghc, the ebuild is a dummy that is it will
425# install no files since the package is already included with ghc.
426# However portage still records the dependency and we can upgrade the package
427# to a later one that's not included with ghc.
428# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
429cabal-is-dummy-lib() {
430 for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
431 [[ "$(ghc-version)" == ${version} ]] && return 0
432 done
433 return 1
185} 434}
186 435
187# exported function: check if cabal is correctly installed for 436# exported function: check if cabal is correctly installed for
188# the currently active ghc (we cannot guarantee this with portage) 437# the currently active ghc (we cannot guarantee this with portage)
189haskell-cabal_pkg_setup() { 438haskell-cabal_pkg_setup() {
190 if [[ -z "${CABAL_BOOTSTRAP}" ]] && ! ghc-sanecabal "1.1.3"; then 439 if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
191 eerror "The package dev-haskell/cabal is not correctly installed for" 440 [[ ${RDEPEND} == *dev-lang/ghc* ]] || eqawarn "QA Notice: A library does not have runtime dependency on dev-lang/ghc."
192 eerror "the currently active version of ghc ($(ghc-version)). Please"
193 eerror "run ghc-updater or re-emerge dev-haskell/cabal."
194 die "cabal is not correctly installed"
195 fi 441 fi
196 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then 442 if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
197 eerror "QA: Neither bin nor lib are in CABAL_FEATURES." 443 eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES."
198 fi 444 fi
199 if [[ -n "${CABAL_UNKNOWN}" ]]; then 445 if [[ -n "${CABAL_UNKNOWN}" ]]; then
200 ewarn "Unknown entry in CABAL_FEATURES: ${CABAL_UNKNONW}" 446 eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
201 fi 447 fi
448 if cabal-is-dummy-lib; then
449 einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
450 fi
451}
452
453haskell-cabal_src_configure() {
454 cabal-is-dummy-lib && return
455
456 pushd "${S}" > /dev/null
457
458 cabal-bootstrap
459
460 cabal-configure "$@"
461
462 popd > /dev/null
463}
464
465# exported function: nice alias
466cabal_src_configure() {
467 haskell-cabal_src_configure "$@"
202} 468}
203 469
204# exported function: cabal-style bootstrap configure and compile 470# exported function: cabal-style bootstrap configure and compile
205cabal_src_compile() { 471cabal_src_compile() {
206 cabal-bootstrap 472 # it's a common mistake when one bumps ebuild to EAPI="2" (and upper)
207 cabal-configure 473 # and forgets to separate src_compile() to src_configure()/src_compile().
474 # Such error leads to default src_configure and we lose all passed flags.
475 if ! has "${EAPI:-0}" 0 1; then
476 local passed_flag
477 for passed_flag in "$@"; do
478 [[ ${passed_flag} == --flags=* ]] && \
479 eqawarn "QA Notice: Cabal option '${passed_flag}' has effect only in src_configure()"
480 done
481 fi
482
483 cabal-is-dummy-lib && return
484
485 has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
208 cabal-build 486 cabal-build
209 487
210 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then 488 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
489 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
490 # hscolour and haddock
491 cabal-hscolour-haddock
492 else
493 # just haddock
211 cabal-haddock 494 cabal-haddock
212 fi 495 fi
496 else
497 if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
498 # just hscolour
499 cabal-hscolour
500 fi
501 fi
213} 502}
503
214haskell-cabal_src_compile() { 504haskell-cabal_src_compile() {
505 pushd "${S}" > /dev/null
506
215 cabal_src_compile 507 cabal_src_compile "$@"
508
509 popd > /dev/null
510}
511
512haskell-cabal_src_test() {
513 pushd "${S}" > /dev/null
514
515 if cabal-is-dummy-lib; then
516 einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
517 else
518 einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
519 set -- test "$@"
520 echo ./setup "$@"
521 ./setup "$@" || die "cabal test failed"
522 fi
523
524 popd > /dev/null
216} 525}
217 526
218# exported function: cabal-style copy and register 527# exported function: cabal-style copy and register
219cabal_src_install() { 528cabal_src_install() {
529 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
530
531 if ! cabal-is-dummy-lib; then
220 cabal-copy 532 cabal-copy
221 cabal-pkg 533 cabal-pkg
222
223 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
224 dohtml -r dist/doc/html/*
225 fi 534 fi
535
536 # create a dummy local package conf file for haskell-updater
537 # if it does not exist (dummy libraries and binaries w/o libraries)
538 local ghc_confdir_with_prefix="$(ghc-confdir)"
539 # remove EPREFIX
540 dodir ${ghc_confdir_with_prefix#${EPREFIX}}
541 local conf_file="${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
542 [[ -e $conf_file ]] || echo '[]' > "$conf_file" || die
543
544 # make sure installed packages do not destroy ghc's
545 # bundled packages
546 local initial_pkg_db=${ROOT}/$(ghc-libdir)/package.conf.d.initial
547 if [[ -e ${initial_pkg_db} ]]; then
548 local checked_pkg
549 for checked_pkg in $(ghc-listpkg "${conf_file}")
550 do
551 local initial_pkg
552 for initial_pkg in $(ghc-listpkg "${initial_pkg_db}"); do
553 if [[ ${checked_pkg} = ${initial_pkg} ]]; then
554 eerror "Package ${checked_pkg} is shipped with $(ghc-version)."
555 eerror "Ebuild author forgot CABAL_CORE_LIB_GHC_PV entry."
556 eerror "Found in ${initial_pkg_db}."
557 die
558 fi
559 done
560 done
561 fi
226} 562}
563
227haskell-cabal_src_install() { 564haskell-cabal_src_install() {
565 pushd "${S}" > /dev/null
566
228 cabal_src_install 567 cabal_src_install
229}
230 568
231EXPORT_FUNCTIONS pkg_setup src_compile src_install 569 popd > /dev/null
570}
571
572# @FUNCTION: cabal_flag
573# @DESCRIPTION:
574# ebuild.sh:use_enable() taken as base
575#
576# Usage examples:
577#
578# CABAL_CONFIGURE_FLAGS=$(cabal_flag gui)
579# leads to "--flags=gui" or "--flags=-gui" (useflag 'gui')
580#
581# CABAL_CONFIGURE_FLAGS=$(cabal_flag gtk gui)
582# also leads to "--flags=gui" or " --flags=-gui" (useflag 'gtk')
583#
584cabal_flag() {
585 if [[ -z "$1" ]]; then
586 echo "!!! cabal_flag() called without a parameter." >&2
587 echo "!!! cabal_flag() <USEFLAG> [<cabal_flagname>]" >&2
588 return 1
589 fi
590
591 local UWORD=${2:-$1}
592
593 if use "$1"; then
594 echo "--flags=${UWORD}"
595 else
596 echo "--flags=-${UWORD}"
597 fi
598
599 return 0
600}
601
602# @FUNCTION: cabal_chdeps
603# @DESCRIPTION:
604# Allows easier patching of $CABAL_FILE (${S}/${PN}.cabal by default)
605# depends
606#
607# Accepts argument list as pairs of substitutions: <from-string> <to-string>...
608#
609# Dies on error.
610#
611# Usage examples:
612#
613# src_prepare() {
614# cabal_chdeps \
615# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7' \
616# 'containers ==0.4.*' 'containers >= 0.4 && < 0.6'
617#}
618# or
619# src_prepare() {
620# CABAL_FILE=${S}/${MY_PN}.cabal cabal_chdeps \
621# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7'
622# CABAL_FILE=${S}/${MY_PN}-tools.cabal cabal_chdeps \
623# 'base == 3.*' 'base >= 4.2 && < 4.7'
624#}
625#
626cabal_chdeps() {
627 local cabal_fn=${MY_PN:-${PN}}.cabal
628 local cf=${CABAL_FILE:-${S}/${cabal_fn}}
629 local from_ss # ss - substring
630 local to_ss
631 local orig_c # c - contents
632 local new_c
633
634 [[ -f $cf ]] || die "cabal file '$cf' does not exist"
635
636 orig_c=$(< "$cf")
637
638 while :; do
639 from_pat=$1
640 to_str=$2
641
642 [[ -n ${from_pat} ]] || break
643 [[ -n ${to_str} ]] || die "'${from_str}' does not have 'to' part"
644
645 einfo "CHDEP: '${from_pat}' -> '${to_str}'"
646
647 # escape pattern-like symbols
648 from_pat=${from_pat//\*/\\*}
649 from_pat=${from_pat//\[/\\[}
650
651 new_c=${orig_c//${from_pat}/${to_str}}
652
653 if [[ -n $CABAL_DEBUG_LOOSENING ]]; then
654 echo "${orig_c}" >"${T}/${cf}".pre
655 echo "${new_c}" >"${T}/${cf}".post
656 diff -u "${T}/${cf}".{pre,post}
657 fi
658
659 [[ "${orig_c}" == "${new_c}" ]] && die "no trigger for '${from_pat}'"
660 orig_c=${new_c}
661 shift
662 shift
663 done
664
665 echo "${new_c}" > "$cf" ||
666 die "failed to update"
667}
668
669# @FUNCTION: replace-hcflags
670# @USAGE: <old> <new>
671# @DESCRIPTION:
672# Replace the <old> flag with <new> in HCFLAGS. Accepts shell globs for <old>.
673# The implementation is picked from flag-o-matic.eclass:replace-flags()
674replace-hcflags() {
675 [[ $# != 2 ]] && die "Usage: replace-hcflags <old flag> <new flag>"
676
677 local f new=()
678 for f in ${HCFLAGS} ; do
679 # Note this should work with globs like -O*
680 if [[ ${f} == ${1} ]]; then
681 einfo "HCFLAGS: replacing '${f}' to '${2}'"
682 f=${2}
683 fi
684 new+=( "${f}" )
685 done
686 export HCFLAGS="${new[*]}"
687
688 return 0
689}

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