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1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2011 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/ghc-package.eclass,v 1.13 2005/07/06 20:23:20 agriffis Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.31 2011/08/22 04:46:31 vapier Exp $
4# 4
5# @ECLASS: ghc-package.eclass
6# @MAINTAINER:
7# "Gentoo's Haskell Language team" <haskell@gentoo.org>
8# @AUTHOR:
5# Author: Andres Loeh <kosmikus@gentoo.org> 9# Original Author: Andres Loeh <kosmikus@gentoo.org>
6#
7# This eclass helps with the Glasgow Haskell Compiler's package 10# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
8# configuration utility. 11# @DESCRIPTION:
12# Helper eclass to handle ghc installation/upgrade/deinstallation process.
9 13
10inherit versionator 14inherit versionator
11 15
12 16# @FUNCTION: ghc-getghc
13# promote /opt/ghc/bin to a better position in the search path 17# @DESCRIPTION:
14PATH="/usr/bin:/opt/ghc/bin:${PATH}"
15
16# for later configuration using environment variables/
17# returns the name of the ghc executable 18# returns the name of the ghc executable
18ghc-getghc() { 19ghc-getghc() {
19 echo "ghc" 20 type -P ghc
20} 21}
21 22
23# @FUNCTION: ghc-getghcpkg
24# @DESCRIPTION:
22# returns the name of the ghc-pkg executable 25# Internal function determines returns the name of the ghc-pkg executable
23ghc-getghcpkg() { 26ghc-getghcpkg() {
24 echo "ghc-pkg" 27 type -P ghc-pkg
25} 28}
26 29
30# @FUNCTION: ghc-getghcpkgbin
31# @DESCRIPTION:
27# returns the name of the ghc-pkg binary (ghc-pkg 32# returns the name of the ghc-pkg binary (ghc-pkg
28# itself usually is a shell script, and we have to 33# itself usually is a shell script, and we have to
29# bypass the script under certain circumstances); 34# bypass the script under certain circumstances);
30# for Cabal, we add the global package config file, 35# for Cabal, we add an empty global package config file,
31# because for some reason that's required 36# because for some reason the global package file
37# must be specified
32ghc-getghcpkgbin() { 38ghc-getghcpkgbin() {
39 if version_is_at_least "6.10" "$(ghc-version)"; then
40 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
41 # the wrapper script with the static flags
42 echo '[]' > "${T}/empty.conf"
43 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
33 if ghc-cabal; then 44 elif ghc-cabal; then
45 echo '[]' > "${T}/empty.conf"
34 echo $(ghc-libdir)/"ghc-pkg.bin" "--global-conf=$(ghc-libdir)/package.conf" 46 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
35 else 47 else
36 echo $(ghc-libdir)/"ghc-pkg.bin" 48 echo "$(ghc-libdir)/ghc-pkg.bin"
37 fi 49 fi
38} 50}
39 51
52# @FUNCTION: ghc-version
53# @DESCRIPTION:
40# returns the version of ghc 54# returns the version of ghc
41_GHC_VERSION_CACHE="" 55_GHC_VERSION_CACHE=""
42ghc-version() { 56ghc-version() {
43 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 57 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
44 _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')" 58 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
45 fi 59 fi
46 echo "${_GHC_VERSION_CACHE}" 60 echo "${_GHC_VERSION_CACHE}"
47} 61}
48 62
49# returns true for ghc >= 6.4 63# @FUNCTION: ghc-cabal
64# @DESCRIPTION:
65# this function can be used to determine if ghc itself
66# uses the Cabal package format; it has nothing to do
67# with the Cabal libraries ... ghc uses the Cabal package
68# format since version 6.4
50ghc-cabal() { 69ghc-cabal() {
51 version_is_at_least "6.4" "$(ghc-version)" 70 version_is_at_least "6.4" "$(ghc-version)"
52} 71}
53 72
73# @FUNCTION: ghc-bestcabalversion
74# @DESCRIPTION:
75# return the best version of the Cabal library that is available
76ghc-bestcabalversion() {
77 local cabalversion
78 if ghc-cabal; then
79 # We ask portage, not ghc, so that we only pick up
80 # portage-installed cabal versions.
81 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
82 echo "Cabal-${cabalversion}"
83 else
84 # older ghc's don't support package versioning
85 echo Cabal
86 fi
87}
88
89# @FUNCTION: ghc-sanecabal
90# @DESCRIPTION:
91# check if a standalone Cabal version is available for the
92# currently used ghc; takes minimal version of Cabal as
93# an optional argument
94ghc-sanecabal() {
95 local f
96 local version
97 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
98 for f in $(ghc-confdir)/cabal-*; do
99 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
100 done
101 return 1
102}
103
104# @FUNCTION: ghc-saneghc
105# @DESCRIPTION:
106# checks if ghc and ghc-bin are installed in the same version
107# (if they're both installed); if this is not the case, we
108# unfortunately cannot trust portage's dependency resolution
109ghc-saneghc() {
110 local ghcversion
111 local ghcbinversion
112 if [[ "${PN}" == "ghc" || "${PN}" == "ghc-bin" ]]; then
113 return
114 fi
115 if has_version dev-lang/ghc && has_version dev-lang/ghc-bin; then
116 ghcversion="$(ghc-extractportageversion dev-lang/ghc)"
117 ghcbinversion="$(ghc-extractportageversion dev-lang/ghc-bin)"
118 if [[ "${ghcversion}" != "${ghcbinversion}" ]]; then
119 return 1
120 fi
121 fi
122 return
123}
124
125# @FUNCTION: ghc-supports-shared-libraries
126# @DESCRIPTION:
127# checks if ghc is built with support for building
128# shared libraries (aka '-dynamic' option)
129ghc-supports-shared-libraries() {
130 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
131}
132
133# @FUNCTION: ghc-extractportageversion
134# @DESCRIPTION:
135# extract the version of a portage-installed package
136ghc-extractportageversion() {
137 local pkg
138 local version
139 pkg="$(best_version $1)"
140 version="${pkg#$1-}"
141 version="${version%-r*}"
142 version="${version%_pre*}"
143 echo "${version}"
144}
145
146# @FUNCTION: ghc-libdir
147# @DESCRIPTION:
54# returns the library directory 148# returns the library directory
55_GHC_LIBDIR_CACHE="" 149_GHC_LIBDIR_CACHE=""
56ghc-libdir() { 150ghc-libdir() {
57 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 151 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
58 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 152 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
59 fi 153 fi
60 echo "${_GHC_LIBDIR_CACHE}" 154 echo "${_GHC_LIBDIR_CACHE}"
61} 155}
62 156
157# @FUNCTION: ghc-confdir
158# @DESCRIPTION:
63# returns the (Gentoo) library configuration directory 159# returns the (Gentoo) library configuration directory
64ghc-confdir() { 160ghc-confdir() {
65 echo $(ghc-libdir)/gentoo 161 echo "$(ghc-libdir)/gentoo"
66} 162}
67 163
164# @FUNCTION: ghc-localpkgconf
165# @DESCRIPTION:
68# returns the name of the local (package-specific) 166# returns the name of the local (package-specific)
69# package configuration file 167# package configuration file
70ghc-localpkgconf() { 168ghc-localpkgconf() {
71 echo "${PF}.conf" 169 echo "${PF}.conf"
72} 170}
73 171
172# @FUNCTION: ghc-makeghcilib
173# @DESCRIPTION:
74# make a ghci foo.o file from a libfoo.a file 174# make a ghci foo.o file from a libfoo.a file
75ghc-makeghcilib() { 175ghc-makeghcilib() {
76 local outfile 176 local outfile
77 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 177 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
78 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 178 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
79} 179}
80 180
181# @FUNCTION: ghc-makeghcilib
182# @DESCRIPTION:
183# tests if a ghc package exists
184ghc-package-exists() {
185 local describe_flag
186 if version_is_at_least "6.4" "$(ghc-version)"; then
187 describe_flag="describe"
188 else
189 describe_flag="--show-package"
190 fi
191
192 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
193}
194
195# @FUNCTION: ghc-setup-pkg
196# @DESCRIPTION:
81# creates a local (package-specific) package 197# creates a local (package-specific) package
82# configuration file; the arguments should be 198# configuration file; the arguments should be
83# uninstalled package description files, each 199# uninstalled package description files, each
84# containing a single package description; if 200# containing a single package description; if
85# no arguments are given, the resulting file is 201# no arguments are given, the resulting file is
86# empty 202# empty
87ghc-setup-pkg() { 203ghc-setup-pkg() {
88 local localpkgconf 204 local localpkgconf
89 localpkgconf="${S}/$(ghc-localpkgconf)" 205 localpkgconf="${S}/$(ghc-localpkgconf)"
90 echo '[]' > ${localpkgconf} 206 echo '[]' > "${localpkgconf}"
207 local update_flag
208 if version_is_at_least "6.4" "$(ghc-version)"; then
209 update_flag="update -"
210 else
211 update_flag="--update-package"
212 fi
91 for pkg in $*; do 213 for pkg in $*; do
92 $(ghc-getghcpkgbin) -f ${localpkgconf} -u --force \ 214 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
93 < ${pkg} || die "failed to register ${pkg}" 215 < "${pkg}" || die "failed to register ${pkg}"
94 done 216 done
95} 217}
96 218
219# @FUNCTION: ghc-fixlibpath
220# @DESCRIPTION:
97# fixes the library and import directories path 221# fixes the library and import directories path
98# of the package configuration file 222# of the package configuration file
99ghc-fixlibpath() { 223ghc-fixlibpath() {
100 sed -i "s|$1|$(ghc-libdir)|g" ${S}/$(ghc-localpkgconf) 224 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
101 if [[ -n "$2" ]]; then 225 if [[ -n "$2" ]]; then
102 sed -i "s|$2|$(ghc-libdir)/imports|g" ${S}/$(ghc-localpkgconf) 226 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
103 fi 227 fi
104} 228}
105 229
230# @FUNCTION: ghc-install-pkg
231# @DESCRIPTION:
106# moves the local (package-specific) package configuration 232# moves the local (package-specific) package configuration
107# file to its final destination 233# file to its final destination
108ghc-install-pkg() { 234ghc-install-pkg() {
109 mkdir -p ${D}/$(ghc-confdir) 235 mkdir -p "${D}/$(ghc-confdir)"
110 cat ${S}/$(ghc-localpkgconf) | sed "s|${D}||g" \ 236 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
111 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 237 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
112} 238}
113 239
240# @FUNCTION: ghc-register-pkg
241# @DESCRIPTION:
114# registers all packages in the local (package-specific) 242# registers all packages in the local (package-specific)
115# package configuration file 243# package configuration file
116ghc-register-pkg() { 244ghc-register-pkg() {
117 local localpkgconf 245 local localpkgconf
118 localpkgconf="$(ghc-confdir)/$1" 246 localpkgconf="$(ghc-confdir)/$1"
247 local update_flag
248 local describe_flag
249 if version_is_at_least "6.4" "$(ghc-version)"; then
250 update_flag="update -"
251 describe_flag="describe"
252 else
253 update_flag="--update-package"
254 describe_flag="--show-package"
255 fi
119 if [[ -f ${localpkgconf} ]]; then 256 if [[ -f "${localpkgconf}" ]]; then
120 for pkg in $(ghc-listpkg ${localpkgconf}); do 257 for pkg in $(ghc-listpkg "${localpkgconf}"); do
121 ebegin "Registering ${pkg} " 258 ebegin "Registering ${pkg} "
122 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 259 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \
123 | $(ghc-getghcpkg) -u --force > /dev/null 260 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null
124 eend $? 261 eend $?
125 done 262 done
126 fi 263 fi
127} 264}
128 265
266# @FUNCTION: ghc-reregister
267# @DESCRIPTION:
129# re-adds all available .conf files to the global 268# re-adds all available .conf files to the global
130# package conf file, to be used on a ghc reinstallation 269# package conf file, to be used on a ghc reinstallation
131ghc-reregister() { 270ghc-reregister() {
132 einfo "Re-adding packages ..." 271 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
133 einfo "(This may cause several warnings, but they should be harmless.)" 272 einfo "Re-adding packages (may cause several harmless warnings) ..."
134 if [ -d "$(ghc-confdir)" ]; then 273 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
135 pushd $(ghc-confdir) > /dev/null 274 if [ -d "${CONFDIR}" ]; then
275 pushd "${CONFDIR}" > /dev/null
136 for conf in *.conf; do 276 for conf in *.conf; do
137 einfo "Processing ${conf} ..." 277 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
138 ghc-register-pkg ${conf}
139 done 278 done
140 popd > /dev/null 279 popd > /dev/null
141 fi 280 fi
142} 281}
143 282
144# unregisters ... 283# @FUNCTION: ghc-unregister-pkg
284# @DESCRIPTION:
285# unregisters a package configuration file
286# protected are all packages that are still contained in
287# another package configuration file
145ghc-unregister-pkg() { 288ghc-unregister-pkg() {
146 local localpkgconf 289 local localpkgconf
290 local i
291 local pkg
292 local unregister_flag
147 localpkgconf="$(ghc-confdir)/$1" 293 localpkgconf="$(ghc-confdir)/$1"
294
295 if version_is_at_least "6.4" "$(ghc-version)"; then
296 unregister_flag="unregister"
297 else
298 unregister_flag="--remove-package"
299 fi
300
148 if [[ -f ${localpkgconf} ]]; then 301 if [[ -f "${localpkgconf}" ]]; then
149 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 302 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
303 if ! ghc-package-exists "${pkg}"; then
304 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
305 else
150 ebegin "Unregistering ${pkg} " 306 ebegin "Unregistering ${pkg} "
151 $(ghc-getghcpkg) -r ${pkg} --force > /dev/null 307 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
152 eend $? 308 eend $?
309 fi
153 done 310 done
154 fi 311 fi
155} 312}
156 313
314# @FUNCTION: ghc-reverse
315# @DESCRIPTION:
157# help-function: reverse a list 316# help-function: reverse a list
158ghc-reverse() { 317ghc-reverse() {
159 local result 318 local result
319 local i
160 for i in $1; do 320 for i in $1; do
161 result="${i} ${result}" 321 result="${i} ${result}"
162 done 322 done
163 echo ${result} 323 echo "${result}"
164} 324}
165 325
326# @FUNCTION: ghc-elem
327# @DESCRIPTION:
328# help-function: element-check
329ghc-elem() {
330 local i
331 for i in $2; do
332 [[ "$1" == "${i}" ]] && return 0
333 done
334 return 1
335}
336
337# @FUNCTION: ghc-listpkg
338# @DESCRIPTION:
166# show the packages in a package configuration file 339# show the packages in a package configuration file
167ghc-listpkg() { 340ghc-listpkg() {
168 local ghcpkgcall 341 local ghcpkgcall
342 local i
343 local extra_flags
344 if version_is_at_least '6.12.3' "$(ghc-version)"; then
345 extra_flags="${extra_flags} -v0"
346 fi
347 for i in $*; do
169 if ghc-cabal; then 348 if ghc-cabal; then
170 echo $($(ghc-getghcpkg) list -f $1) \ 349 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
171 | sed \ 350 | sed \
172 -e "s|^.*${f}:\([^:]*\).*$|\1|" \ 351 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
173 -e "s|/.*$||" \ 352 -e "s|/.*$||" \
174 -e "s|,| |g" -e "s|[()]||g" 353 -e "s|,| |g" -e "s|[(){}]||g"
175 else 354 else
176 echo $($(ghc-getghcpkgbin) -l -f $1) \ 355 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
177 | cut -f2 -d':' \ 356 | cut -f2 -d':' \
178 | sed 's:,: :g' 357 | sed 's:,: :g'
179 fi 358 fi
359 done
180} 360}
181 361
362# @FUNCTION: ghc-package_pkg_setup
363# @DESCRIPTION:
364# exported function: check if we have a consistent ghc installation
365ghc-package_pkg_setup() {
366 if ! ghc-saneghc; then
367 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin"
368 eerror "installed. Portage currently cannot work correctly with this setup."
369 eerror "There are several possibilities to work around this problem:"
370 eerror "(1) Up/downgrade ghc-bin to the same version as ghc."
371 eerror "(2) Unmerge ghc-bin."
372 eerror "(3) Unmerge ghc."
373 eerror "You probably want option 1 or 2."
374 die "Inconsistent versions of ghc and ghc-bin."
375 fi
376}
377
378# @FUNCTION: ghc-package_pkg_postinst
379# @DESCRIPTION:
182# exported function: registers the package-specific package 380# exported function: registers the package-specific package
183# configuration file 381# configuration file
184ghc-package_pkg_postinst() { 382ghc-package_pkg_postinst() {
185 ghc-register-pkg $(ghc-localpkgconf) 383 ghc-register-pkg "$(ghc-localpkgconf)"
186} 384}
187 385
386# @FUNCTION: ghc-package_pkg_prerm
387# @DESCRIPTION:
188# exported function: unregisters the package-specific 388# exported function: unregisters the package-specific package
189# package configuration file, under the condition that 389# configuration file; a package contained therein is unregistered
190# after removal, no other instances of the package will 390# only if it the same package is not also contained in another
191# be left (necessary check because ghc packages are not 391# package configuration file ...
192# versioned)
193ghc-package_pkg_prerm() { 392ghc-package_pkg_prerm() {
194 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
195 || ghc-unregister-pkg $(ghc-localpkgconf) 393 ghc-unregister-pkg "$(ghc-localpkgconf)"
196} 394}
197 395
198EXPORT_FUNCTIONS pkg_postinst pkg_prerm 396EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm

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