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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 1.20 2006/10/04 17:45:35 kosmikus 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# Maintained by: Haskell herd <haskell@gentoo.org>
7#
8# This eclass helps with the Glasgow Haskell Compiler's package 10# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
9# configuration utility. 11# @DESCRIPTION:
12# Helper eclass to handle ghc installation/upgrade/deinstallation process.
10 13
11inherit versionator 14inherit versionator
12 15
13# promote /opt/ghc/bin to a better position in the search path 16# @FUNCTION: ghc-getghc
14PATH="/usr/bin:/opt/ghc/bin:${PATH}" 17# @DESCRIPTION:
15
16# for later configuration using environment variables/
17# returns the name of the ghc executable 18# returns the name of the ghc executable
18ghc-getghc() { 19ghc-getghc() {
19 echo "$(which 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 "$(which ghc-pkg)" 27 type -P ghc-pkg
25} 28}
26 29
30# @FUNCTION: ghc-getghcpkgbin
31# @DESCRIPTION:
27# returns the name of the ghc-pkg binary (ghc-pkg 32# returns the name of the ghc-pkg binary (ghc-pkg
28# itself usually is a shell script, and we have to 33# itself usually is a shell script, and we have to
29# bypass the script under certain circumstances); 34# bypass the script under certain circumstances);
30# for Cabal, we add an empty global package config file, 35# for Cabal, we add an empty global package config file,
31# because for some reason the global package file 36# because for some reason the global package file
32# must be specified 37# must be specified
33ghc-getghcpkgbin() { 38ghc-getghcpkgbin() {
39 if version_is_at_least "6.10" "$(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=${T}/empty.conf"
34 if ghc-cabal; then 44 elif ghc-cabal; then
35 echo '[]' > "${T}/empty.conf" 45 echo '[]' > "${T}/empty.conf"
36 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" 46 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
37 else 47 else
38 echo "$(ghc-libdir)/ghc-pkg.bin" 48 echo "$(ghc-libdir)/ghc-pkg.bin"
39 fi 49 fi
40} 50}
41 51
52# @FUNCTION: ghc-version
53# @DESCRIPTION:
42# returns the version of ghc 54# returns the version of ghc
43_GHC_VERSION_CACHE="" 55_GHC_VERSION_CACHE=""
44ghc-version() { 56ghc-version() {
45 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 57 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
46 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" 58 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
47 fi 59 fi
48 echo "${_GHC_VERSION_CACHE}" 60 echo "${_GHC_VERSION_CACHE}"
49} 61}
50 62
63# @FUNCTION: ghc-cabal
64# @DESCRIPTION:
51# this function can be used to determine if ghc itself 65# this function can be used to determine if ghc itself
52# uses the Cabal package format; it has nothing to do 66# uses the Cabal package format; it has nothing to do
53# with the Cabal libraries ... ghc uses the Cabal package 67# with the Cabal libraries ... ghc uses the Cabal package
54# format since version 6.4 68# format since version 6.4
55ghc-cabal() { 69ghc-cabal() {
56 version_is_at_least "6.4" "$(ghc-version)" 70 version_is_at_least "6.4" "$(ghc-version)"
57} 71}
58 72
73# @FUNCTION: ghc-bestcabalversion
74# @DESCRIPTION:
59# return the best version of the Cabal library that is available 75# return the best version of the Cabal library that is available
60ghc-bestcabalversion() { 76ghc-bestcabalversion() {
61 local cabalpackage
62 local cabalversion 77 local cabalversion
63 if ghc-cabal; then 78 if ghc-cabal; then
64 # We ask portage, not ghc, so that we only pick up 79 # We ask portage, not ghc, so that we only pick up
65 # portage-installed cabal versions. 80 # portage-installed cabal versions.
66 cabalpackage="$(best_version dev-haskell/cabal)" 81 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
67 cabalversion="${cabalpackage#dev-haskell/cabal-}"
68 cabalversion="${cabalversion%-r*}"
69 cabalversion="${cabalversion%_pre*}"
70 echo "Cabal-${cabalversion}" 82 echo "Cabal-${cabalversion}"
71 else 83 else
72 # older ghc's don't support package versioning 84 # older ghc's don't support package versioning
73 echo Cabal 85 echo Cabal
74 fi 86 fi
75} 87}
76 88
89# @FUNCTION: ghc-sanecabal
90# @DESCRIPTION:
77# check if a standalone Cabal version is available for the 91# check if a standalone Cabal version is available for the
78# currently used ghc; takes minimal version of Cabal as 92# currently used ghc; takes minimal version of Cabal as
79# an optional argument 93# an optional argument
80ghc-sanecabal() { 94ghc-sanecabal() {
81 local f 95 local f
85 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 99 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
86 done 100 done
87 return 1 101 return 1
88} 102}
89 103
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:
90# returns the library directory 148# returns the library directory
91_GHC_LIBDIR_CACHE="" 149_GHC_LIBDIR_CACHE=""
92ghc-libdir() { 150ghc-libdir() {
93 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 151 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
94 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 152 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
95 fi 153 fi
96 echo "${_GHC_LIBDIR_CACHE}" 154 echo "${_GHC_LIBDIR_CACHE}"
97} 155}
98 156
157# @FUNCTION: ghc-confdir
158# @DESCRIPTION:
99# returns the (Gentoo) library configuration directory 159# returns the (Gentoo) library configuration directory
100ghc-confdir() { 160ghc-confdir() {
101 echo "$(ghc-libdir)/gentoo" 161 echo "$(ghc-libdir)/gentoo"
102} 162}
103 163
164# @FUNCTION: ghc-localpkgconf
165# @DESCRIPTION:
104# returns the name of the local (package-specific) 166# returns the name of the local (package-specific)
105# package configuration file 167# package configuration file
106ghc-localpkgconf() { 168ghc-localpkgconf() {
107 echo "${PF}.conf" 169 echo "${PF}.conf"
108} 170}
109 171
172# @FUNCTION: ghc-makeghcilib
173# @DESCRIPTION:
110# make a ghci foo.o file from a libfoo.a file 174# make a ghci foo.o file from a libfoo.a file
111ghc-makeghcilib() { 175ghc-makeghcilib() {
112 local outfile 176 local outfile
113 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 177 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
114 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 178 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
115} 179}
116 180
181# @FUNCTION: ghc-makeghcilib
182# @DESCRIPTION:
117# tests if a ghc package exists 183# tests if a ghc package exists
118ghc-package-exists() { 184ghc-package-exists() {
185 local describe_flag
186 if version_is_at_least "6.4" "$(ghc-version)"; then
187 describe_flag="describe"
188 else
189 describe_flag="--show-package"
190 fi
191
119 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 192 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
120} 193}
121 194
195# @FUNCTION: ghc-setup-pkg
196# @DESCRIPTION:
122# creates a local (package-specific) package 197# creates a local (package-specific) package
123# configuration file; the arguments should be 198# configuration file; the arguments should be
124# uninstalled package description files, each 199# uninstalled package description files, each
125# containing a single package description; if 200# containing a single package description; if
126# no arguments are given, the resulting file is 201# no arguments are given, the resulting file is
127# empty 202# empty
128ghc-setup-pkg() { 203ghc-setup-pkg() {
129 local localpkgconf 204 local localpkgconf
130 localpkgconf="${S}/$(ghc-localpkgconf)" 205 localpkgconf="${S}/$(ghc-localpkgconf)"
131 echo '[]' > "${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
132 for pkg in $*; do 213 for pkg in $*; do
133 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ 214 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
134 < "${pkg}" || die "failed to register ${pkg}" 215 < "${pkg}" || die "failed to register ${pkg}"
135 done 216 done
136} 217}
137 218
219# @FUNCTION: ghc-fixlibpath
220# @DESCRIPTION:
138# fixes the library and import directories path 221# fixes the library and import directories path
139# of the package configuration file 222# of the package configuration file
140ghc-fixlibpath() { 223ghc-fixlibpath() {
141 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 224 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
142 if [[ -n "$2" ]]; then 225 if [[ -n "$2" ]]; then
143 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 226 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
144 fi 227 fi
145} 228}
146 229
230# @FUNCTION: ghc-install-pkg
231# @DESCRIPTION:
147# moves the local (package-specific) package configuration 232# moves the local (package-specific) package configuration
148# file to its final destination 233# file to its final destination
149ghc-install-pkg() { 234ghc-install-pkg() {
150 mkdir -p "${D}/$(ghc-confdir)" 235 mkdir -p "${D}/$(ghc-confdir)"
151 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 236 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
152 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 237 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
153} 238}
154 239
240# @FUNCTION: ghc-register-pkg
241# @DESCRIPTION:
155# registers all packages in the local (package-specific) 242# registers all packages in the local (package-specific)
156# package configuration file 243# package configuration file
157ghc-register-pkg() { 244ghc-register-pkg() {
158 local localpkgconf 245 local localpkgconf
159 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
160 if [[ -f "${localpkgconf}" ]]; then 256 if [[ -f "${localpkgconf}" ]]; then
161 for pkg in $(ghc-listpkg "${localpkgconf}"); do 257 for pkg in $(ghc-listpkg "${localpkgconf}"); do
162 ebegin "Registering ${pkg} " 258 ebegin "Registering ${pkg} "
163 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ 259 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \
164 | $(ghc-getghcpkg) -u --force > /dev/null 260 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null
165 eend $? 261 eend $?
166 done 262 done
167 fi 263 fi
168} 264}
169 265
266# @FUNCTION: ghc-reregister
267# @DESCRIPTION:
170# re-adds all available .conf files to the global 268# re-adds all available .conf files to the global
171# package conf file, to be used on a ghc reinstallation 269# package conf file, to be used on a ghc reinstallation
172ghc-reregister() { 270ghc-reregister() {
271 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
173 einfo "Re-adding packages (may cause several harmless warnings) ..." 272 einfo "Re-adding packages (may cause several harmless warnings) ..."
174 if [ -d "$(ghc-confdir)" ]; then 273 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
175 pushd "$(ghc-confdir)" > /dev/null 274 if [ -d "${CONFDIR}" ]; then
275 pushd "${CONFDIR}" > /dev/null
176 for conf in *.conf; do 276 for conf in *.conf; do
177# einfo "Processing ${conf} ..." 277 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
178 ghc-register-pkg "${conf}"
179 done 278 done
180 popd > /dev/null 279 popd > /dev/null
181 fi 280 fi
182} 281}
183 282
283# @FUNCTION: ghc-unregister-pkg
284# @DESCRIPTION:
184# unregisters a package configuration file 285# unregisters a package configuration file
185# protected are all packages that are still contained in 286# protected are all packages that are still contained in
186# another package configuration file 287# another package configuration file
187ghc-unregister-pkg() { 288ghc-unregister-pkg() {
188 local localpkgconf 289 local localpkgconf
189 local i 290 local i
190 local pkg 291 local pkg
191 local protected 292 local unregister_flag
192 localpkgconf="$(ghc-confdir)/$1" 293 localpkgconf="$(ghc-confdir)/$1"
193 294
194 for i in $(ghc-confdir)/*.conf; do 295 if version_is_at_least "6.4" "$(ghc-version)"; then
195 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})" 296 unregister_flag="unregister"
196 done 297 else
197 # protected now contains the packages that cannot be unregistered yet 298 unregister_flag="--remove-package"
299 fi
198 300
199 if [[ -f "${localpkgconf}" ]]; then 301 if [[ -f "${localpkgconf}" ]]; then
200 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 302 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
201 if $(ghc-elem "${pkg}" "${protected}"); then
202 einfo "Package ${pkg} is protected."
203 elif ! ghc-package-exists "${pkg}"; then 303 if ! ghc-package-exists "${pkg}"; then
204 :
205 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 304 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
206 else 305 else
207 ebegin "Unregistering ${pkg} " 306 ebegin "Unregistering ${pkg} "
208 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null 307 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
209 eend $? 308 eend $?
210 fi 309 fi
211 done 310 done
212 fi 311 fi
213} 312}
214 313
314# @FUNCTION: ghc-reverse
315# @DESCRIPTION:
215# help-function: reverse a list 316# help-function: reverse a list
216ghc-reverse() { 317ghc-reverse() {
217 local result 318 local result
218 local i 319 local i
219 for i in $1; do 320 for i in $1; do
220 result="${i} ${result}" 321 result="${i} ${result}"
221 done 322 done
222 echo "${result}" 323 echo "${result}"
223} 324}
224 325
326# @FUNCTION: ghc-elem
327# @DESCRIPTION:
225# help-function: element-check 328# help-function: element-check
226ghc-elem() { 329ghc-elem() {
227 local i 330 local i
228 for i in $2; do 331 for i in $2; do
229 [[ "$1" == "${i}" ]] && return 0 332 [[ "$1" == "${i}" ]] && return 0
230 done 333 done
231 return 1 334 return 1
232} 335}
233 336
337# @FUNCTION: ghc-listpkg
338# @DESCRIPTION:
234# show the packages in a package configuration file 339# show the packages in a package configuration file
235ghc-listpkg() { 340ghc-listpkg() {
236 local ghcpkgcall 341 local ghcpkgcall
237 local i 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
238 for i in $*; do 347 for i in $*; do
239 if ghc-cabal; then 348 if ghc-cabal; then
240 echo $($(ghc-getghcpkg) list -f "${i}") \ 349 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
241 | sed \ 350 | sed \
242 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 351 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
243 -e "s|/.*$||" \ 352 -e "s|/.*$||" \
244 -e "s|,| |g" -e "s|[()]||g" 353 -e "s|,| |g" -e "s|[(){}]||g"
245 else 354 else
246 echo $($(ghc-getghcpkgbin) -l -f "${i}") \ 355 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
247 | cut -f2 -d':' \ 356 | cut -f2 -d':' \
248 | sed 's:,: :g' 357 | sed 's:,: :g'
249 fi 358 fi
250 done 359 done
251} 360}
252 361
362# @FUNCTION: ghc-package_pkg_setup
363# @DESCRIPTION:
364# exported function: check if we have a consistent ghc installation
365ghc-package_pkg_setup() {
366 if ! ghc-saneghc; then
367 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin"
368 eerror "installed. Portage currently cannot work correctly with this setup."
369 eerror "There are several possibilities to work around this problem:"
370 eerror "(1) Up/downgrade ghc-bin to the same version as ghc."
371 eerror "(2) Unmerge ghc-bin."
372 eerror "(3) Unmerge ghc."
373 eerror "You probably want option 1 or 2."
374 die "Inconsistent versions of ghc and ghc-bin."
375 fi
376}
377
378# @FUNCTION: ghc-package_pkg_postinst
379# @DESCRIPTION:
253# exported function: registers the package-specific package 380# exported function: registers the package-specific package
254# configuration file 381# configuration file
255ghc-package_pkg_postinst() { 382ghc-package_pkg_postinst() {
256 ghc-register-pkg "$(ghc-localpkgconf)" 383 ghc-register-pkg "$(ghc-localpkgconf)"
257} 384}
258 385
386# @FUNCTION: ghc-package_pkg_prerm
387# @DESCRIPTION:
259# exported function: unregisters the package-specific package 388# exported function: unregisters the package-specific package
260# configuration file; a package contained therein is unregistered 389# configuration file; a package contained therein is unregistered
261# only if it the same package is not also contained in another 390# only if it the same package is not also contained in another
262# package configuration file ... 391# package configuration file ...
263ghc-package_pkg_prerm() { 392ghc-package_pkg_prerm() {
264 ghc-unregister-pkg "$(ghc-localpkgconf)" 393 ghc-unregister-pkg "$(ghc-localpkgconf)"
265} 394}
266 395
267EXPORT_FUNCTIONS pkg_postinst pkg_prerm 396EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm

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