/[gentoo-x86]/eclass/haskell-cabal.eclass

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Revision 1.30		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 1.30 2012/04/14 19:30:53 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).
		34	# test-suite -- add support for cabal test-suites (introduced in Cabal-1.8)
33		35
34	inherit ghc-package multilib	36	inherit ghc-package multilib
35		37
36	# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS	38	# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS
37	# @DESCRIPTION:	39	# @DESCRIPTION:
…		…
51	# _only_ 'setup' binary bootstrap.	53	# _only_ 'setup' binary bootstrap.
52	# example: /etc/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make	54	# example: /etc/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make
53	# linking 'setup' faster.	55	# linking 'setup' faster.
54	: ${GHC_BOOTSTRAP_FLAGS:=}	56	: ${GHC_BOOTSTRAP_FLAGS:=}
55		57
		58	# @ECLASS-VARIABLE: CABAL_DEBUG_LOOSENING
		59	# @DESCRIPTION:
		60	# Show debug output for 'cabal_chdeps' function if set.
		61	# Needs working 'diff'.
		62	: ${CABAL_DEBUG_LOOSENING:=}
		63
56	HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"	64	HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"
57		65
58	case "${EAPI:-0}" in	66	case "${EAPI:-0}" in
59	2\|3\|4) HASKELL_CABAL_EXPF+=" src_configure" ;;	67	2\|3\|4\|5) HASKELL_CABAL_EXPF+=" src_configure" ;;
60	*) ;;	68	*) ;;
61	esac	69	esac
62		70
63	EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}	71	EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
64		72
…		…
74	profile) CABAL_USE_PROFILE=yes;;	82	profile) CABAL_USE_PROFILE=yes;;
75	bootstrap) CABAL_BOOTSTRAP=yes;;	83	bootstrap) CABAL_BOOTSTRAP=yes;;
76	bin) CABAL_HAS_BINARIES=yes;;	84	bin) CABAL_HAS_BINARIES=yes;;
77	lib) CABAL_HAS_LIBRARIES=yes;;	85	lib) CABAL_HAS_LIBRARIES=yes;;
78	nocabaldep) CABAL_FROM_GHC=yes;;	86	nocabaldep) CABAL_FROM_GHC=yes;;
		87	test-suite) CABAL_TEST_SUITE=yes;;
79	*) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;	88	*) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
80	esac	89	esac
81	done	90	done
82		91
83	if [[ -n "${CABAL_USE_HADDOCK}" ]]; then	92	if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
…		…
108	DEPEND="${DEPEND} dev-haskell/cpphs"	117	DEPEND="${DEPEND} dev-haskell/cpphs"
109	fi	118	fi
110		119
111	if [[ -n "${CABAL_USE_PROFILE}" ]]; then	120	if [[ -n "${CABAL_USE_PROFILE}" ]]; then
112	IUSE="${IUSE} profile"	121	IUSE="${IUSE} profile"
		122	fi
		123
		124	if [[ -n "${CABAL_TEST_SUITE}" ]]; then
		125	IUSE="${IUSE} test"
113	fi	126	fi
114		127
115	# 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
116	# 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.
117	if [[ -z ${CABAL_MIN_VERSION} ]]; then	130	if [[ -z ${CABAL_MIN_VERSION} ]]; then
…		…
156	setupmodule="${S}/Setup.hs"	169	setupmodule="${S}/Setup.hs"
157	else	170	else
158	die "No Setup.lhs or Setup.hs found"	171	die "No Setup.lhs or Setup.hs found"
159	fi	172	fi
160		173
		174	if [[ -z "${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 ($(ghc-version)). Please"
		177	eerror "run haskell-updater or re-build dev-haskell/cabal."
		178	die "cabal is not correctly installed"
		179	fi
		180
161	# We build the setup program using the latest version of	181	# We build the setup program using the latest version of
162	# cabal that we have installed	182	# cabal that we have installed
163	cabalpackage=Cabal-$(cabal-version)	183	cabalpackage=Cabal-$(cabal-version)
164	einfo "Using cabal-$(cabal-version)."	184	einfo "Using cabal-$(cabal-version)."
165		185
…		…
172	$(ghc-getghc) "$@"	192	$(ghc-getghc) "$@"
173	}	193	}
174	if $(ghc-supports-shared-libraries); then	194	if $(ghc-supports-shared-libraries); then
175	# # some custom build systems might use external libraries,	195	# # some custom build systems might use external libraries,
176	# # for which we don't have shared libs, so keep static fallback	196	# # for which we don't have shared libs, so keep static fallback
177	# Disabled '-dynamic' as ghc does not embed RPATH to used extra-libraries:
178	# bug #411789, http://hackage.haskell.org/trac/ghc/ticket/5743#comment:3	197	# bug #411789, http://hackage.haskell.org/trac/ghc/ticket/5743#comment:3
179	# make_setup -dynamic "$@" \|\|	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; } \|\|
180	make_setup "$@" \|\| die "compiling ${setupmodule} failed"	210	make_setup "$@" \|\| die "compiling ${setupmodule} failed"
181	else	211	else
182	make_setup "$@" \|\| die "compiling ${setupmodule} failed"	212	make_setup "$@" \|\| die "compiling ${setupmodule} failed"
183	fi	213	fi
184	}	214	}
…		…
237	if [[ -n "${CABAL_USE_C2HS}" ]]; then	267	if [[ -n "${CABAL_USE_C2HS}" ]]; then
238	cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs"	268	cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs"
239	fi	269	fi
240	if [[ -n "${CABAL_USE_CPPHS}" ]]; then	270	if [[ -n "${CABAL_USE_CPPHS}" ]]; then
241	cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs"	271	cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs"
		272	fi
		273	if [[ -n "${CABAL_TEST_SUITE}" ]]; then
		274	cabalconf="${cabalconf} $(use_enable test tests)"
242	fi	275	fi
243		276
244	local option	277	local option
245	for option in ${HCFLAGS}	278	for option in ${HCFLAGS}
246	do	279	do
…		…
273	# 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
274	# 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.
275	[[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \	308	[[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
276	$(ghc-supports-shared-libraries) && \	309	$(ghc-supports-shared-libraries) && \
277	cabalconf="${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="${cabalconf} --enable-shared"
		316	fi
		317	fi
278		318
279	set -- configure \	319	set -- configure \
280	--ghc --prefix="${EPREFIX}"/usr \	320	--ghc --prefix="${EPREFIX}"/usr \
281	--with-compiler="$(ghc-getghc)" \	321	--with-compiler="$(ghc-getghc)" \
282	--with-hc-pkg="$(ghc-getghcpkg)" \	322	--with-hc-pkg="$(ghc-getghcpkg)" \
…		…
334	# 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
335	# to a later one that's not included with ghc.	375	# to a later one that's not included with ghc.
336	# 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".
337	cabal-is-dummy-lib() {	377	cabal-is-dummy-lib() {
338	for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do	378	for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
339	[[ "$(ghc-version)" == "$version" ]] && return 0	379	[[ "$(ghc-version)" == ${version} ]] && return 0
340	done	380	done
341	return 1	381	return 1
342	}	382	}
343		383
344	# exported function: check if cabal is correctly installed for	384	# exported function: check if cabal is correctly installed for
345	# the currently active ghc (we cannot guarantee this with portage)	385	# the currently active ghc (we cannot guarantee this with portage)
346	haskell-cabal_pkg_setup() {	386	haskell-cabal_pkg_setup() {
347	if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
348	eerror "The package dev-haskell/cabal is not correctly installed for"
349	eerror "the currently active version of ghc ($(ghc-version)). Please"
350	eerror "run haskell-updater or re-build dev-haskell/cabal."
351	die "cabal is not correctly installed"
352	fi
353	if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then	387	if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
354	eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES."	388	eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES."
355	fi	389	fi
356	if [[ -n "${CABAL_UNKNOWN}" ]]; then	390	if [[ -n "${CABAL_UNKNOWN}" ]]; then
357	eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"	391	eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
…		…
449	local ghc_confdir_with_prefix="$(ghc-confdir)"	483	local ghc_confdir_with_prefix="$(ghc-confdir)"
450	# remove EPREFIX	484	# remove EPREFIX
451	dodir ${ghc_confdir_with_prefix#${EPREFIX}}	485	dodir ${ghc_confdir_with_prefix#${EPREFIX}}
452	local conf_file="${D}/$(ghc-confdir)/$(ghc-localpkgconf)"	486	local conf_file="${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
453	[[ -e $conf_file ]] \|\| echo '[]' > "$conf_file" \|\| die	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 ${initial_pkg_db}."
		502	die
		503	fi
		504	done
		505	done
		506	fi
454	}	507	}
455		508
456	haskell-cabal_src_install() {	509	haskell-cabal_src_install() {
457	pushd "${S}" > /dev/null	510	pushd "${S}" > /dev/null
458		511
…		…
486	echo "--flags=-${UWORD}"	539	echo "--flags=-${UWORD}"
487	fi	540	fi
488		541
489	return 0	542	return 0
490	}	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}/${MY_PN}-tools.cabal cabal_chdeps \
		566	# 'base == 3.*' 'base >= 4.2 && < 4.7'
		567	#}
		568	#
		569	cabal_chdeps() {
		570	local cf=${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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