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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 1.30 2011/05/08 15:00:43 slyfox Exp $
4# 4#
5# Author: Andres Loeh <kosmikus@gentoo.org> 5# @ECLASS: ghc-package.eclass
6# Maintained by: Haskell herd <haskell@gentoo.org> 6# @MAINTAINER:
7# "Gentoo's Haskell Language team" <haskell@gentoo.org>
7# 8#
9# Original Author: Andres Loeh <kosmikus@gentoo.org>
10#
8# This eclass helps with the Glasgow Haskell Compiler's package 11# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
9# configuration utility. 12# @DESCRIPTION:
13# Helper eclass to handle ghc installation/upgrade/deinstallation process.
10 14
11inherit versionator 15inherit versionator
12 16
13# promote /opt/ghc/bin to a better position in the search path 17# @FUNCTION: ghc-getghc
14PATH="/usr/bin:/opt/ghc/bin:${PATH}" 18# @DESCRIPTION:
15
16# for later configuration using environment variables/
17# returns the name of the ghc executable 19# returns the name of the ghc executable
18ghc-getghc() { 20ghc-getghc() {
19 echo "$(which ghc)" 21 type -P ghc
20} 22}
21 23
24# @FUNCTION: ghc-getghcpkg
25# @DESCRIPTION:
22# returns the name of the ghc-pkg executable 26# Internal function determines returns the name of the ghc-pkg executable
23ghc-getghcpkg() { 27ghc-getghcpkg() {
24 echo "$(which ghc-pkg)" 28 type -P ghc-pkg
25} 29}
26 30
31# @FUNCTION: ghc-getghcpkgbin
32# @DESCRIPTION:
27# returns the name of the ghc-pkg binary (ghc-pkg 33# returns the name of the ghc-pkg binary (ghc-pkg
28# itself usually is a shell script, and we have to 34# itself usually is a shell script, and we have to
29# bypass the script under certain circumstances); 35# bypass the script under certain circumstances);
30# for Cabal, we add an empty global package config file, 36# for Cabal, we add an empty global package config file,
31# because for some reason the global package file 37# because for some reason the global package file
32# must be specified 38# must be specified
33ghc-getghcpkgbin() { 39ghc-getghcpkgbin() {
40 if version_is_at_least "6.10" "$(ghc-version)"; then
41 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
42 # the wrapper script with the static flags
43 echo '[]' > "${T}/empty.conf"
44 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
34 if ghc-cabal; then 45 elif ghc-cabal; then
35 echo '[]' > "${T}/empty.conf" 46 echo '[]' > "${T}/empty.conf"
36 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" 47 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
37 else 48 else
38 echo "$(ghc-libdir)/ghc-pkg.bin" 49 echo "$(ghc-libdir)/ghc-pkg.bin"
39 fi 50 fi
40} 51}
41 52
53# @FUNCTION: ghc-version
54# @DESCRIPTION:
42# returns the version of ghc 55# returns the version of ghc
43_GHC_VERSION_CACHE="" 56_GHC_VERSION_CACHE=""
44ghc-version() { 57ghc-version() {
45 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 58 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
46 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" 59 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
47 fi 60 fi
48 echo "${_GHC_VERSION_CACHE}" 61 echo "${_GHC_VERSION_CACHE}"
49} 62}
50 63
64# @FUNCTION: ghc-cabal
65# @DESCRIPTION:
51# this function can be used to determine if ghc itself 66# this function can be used to determine if ghc itself
52# uses the Cabal package format; it has nothing to do 67# uses the Cabal package format; it has nothing to do
53# with the Cabal libraries ... ghc uses the Cabal package 68# with the Cabal libraries ... ghc uses the Cabal package
54# format since version 6.4 69# format since version 6.4
55ghc-cabal() { 70ghc-cabal() {
56 version_is_at_least "6.4" "$(ghc-version)" 71 version_is_at_least "6.4" "$(ghc-version)"
57} 72}
58 73
74# @FUNCTION: ghc-bestcabalversion
75# @DESCRIPTION:
59# return the best version of the Cabal library that is available 76# return the best version of the Cabal library that is available
60ghc-bestcabalversion() { 77ghc-bestcabalversion() {
61 local cabalpackage
62 local cabalversion 78 local cabalversion
63 if ghc-cabal; then 79 if ghc-cabal; then
64 # We ask portage, not ghc, so that we only pick up 80 # We ask portage, not ghc, so that we only pick up
65 # portage-installed cabal versions. 81 # portage-installed cabal versions.
66 cabalpackage="$(best_version dev-haskell/cabal)" 82 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
67 cabalversion="${cabalpackage#dev-haskell/cabal-}"
68 cabalversion="${cabalversion%-r*}"
69 cabalversion="${cabalversion%_pre*}"
70 echo "Cabal-${cabalversion}" 83 echo "Cabal-${cabalversion}"
71 else 84 else
72 # older ghc's don't support package versioning 85 # older ghc's don't support package versioning
73 echo Cabal 86 echo Cabal
74 fi 87 fi
75} 88}
76 89
90# @FUNCTION: ghc-sanecabal
91# @DESCRIPTION:
77# check if a standalone Cabal version is available for the 92# check if a standalone Cabal version is available for the
78# currently used ghc; takes minimal version of Cabal as 93# currently used ghc; takes minimal version of Cabal as
79# an optional argument 94# an optional argument
80ghc-sanecabal() { 95ghc-sanecabal() {
81 local f 96 local f
85 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 100 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
86 done 101 done
87 return 1 102 return 1
88} 103}
89 104
105# @FUNCTION: ghc-saneghc
106# @DESCRIPTION:
107# checks if ghc and ghc-bin are installed in the same version
108# (if they're both installed); if this is not the case, we
109# unfortunately cannot trust portage's dependency resolution
110ghc-saneghc() {
111 local ghcversion
112 local ghcbinversion
113 if [[ "${PN}" == "ghc" || "${PN}" == "ghc-bin" ]]; then
114 return
115 fi
116 if has_version dev-lang/ghc && has_version dev-lang/ghc-bin; then
117 ghcversion="$(ghc-extractportageversion dev-lang/ghc)"
118 ghcbinversion="$(ghc-extractportageversion dev-lang/ghc-bin)"
119 if [[ "${ghcversion}" != "${ghcbinversion}" ]]; then
120 return 1
121 fi
122 fi
123 return
124}
125
126# @FUNCTION: ghc-supports-shared-libraries
127# @DESCRIPTION:
128# checks if ghc is built with support for building
129# shared libraries (aka '-dynamic' option)
130ghc-supports-shared-libraries() {
131 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
132}
133
134# @FUNCTION: ghc-extractportageversion
135# @DESCRIPTION:
136# extract the version of a portage-installed package
137ghc-extractportageversion() {
138 local pkg
139 local version
140 pkg="$(best_version $1)"
141 version="${pkg#$1-}"
142 version="${version%-r*}"
143 version="${version%_pre*}"
144 echo "${version}"
145}
146
147# @FUNCTION: ghc-libdir
148# @DESCRIPTION:
90# returns the library directory 149# returns the library directory
91_GHC_LIBDIR_CACHE="" 150_GHC_LIBDIR_CACHE=""
92ghc-libdir() { 151ghc-libdir() {
93 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 152 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
94 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 153 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
95 fi 154 fi
96 echo "${_GHC_LIBDIR_CACHE}" 155 echo "${_GHC_LIBDIR_CACHE}"
97} 156}
98 157
158# @FUNCTION: ghc-confdir
159# @DESCRIPTION:
99# returns the (Gentoo) library configuration directory 160# returns the (Gentoo) library configuration directory
100ghc-confdir() { 161ghc-confdir() {
101 echo "$(ghc-libdir)/gentoo" 162 echo "$(ghc-libdir)/gentoo"
102} 163}
103 164
165# @FUNCTION: ghc-localpkgconf
166# @DESCRIPTION:
104# returns the name of the local (package-specific) 167# returns the name of the local (package-specific)
105# package configuration file 168# package configuration file
106ghc-localpkgconf() { 169ghc-localpkgconf() {
107 echo "${PF}.conf" 170 echo "${PF}.conf"
108} 171}
109 172
173# @FUNCTION: ghc-makeghcilib
174# @DESCRIPTION:
110# make a ghci foo.o file from a libfoo.a file 175# make a ghci foo.o file from a libfoo.a file
111ghc-makeghcilib() { 176ghc-makeghcilib() {
112 local outfile 177 local outfile
113 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 178 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
114 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 179 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
115} 180}
116 181
182# @FUNCTION: ghc-makeghcilib
183# @DESCRIPTION:
117# tests if a ghc package exists 184# tests if a ghc package exists
118ghc-package-exists() { 185ghc-package-exists() {
186 local describe_flag
187 if version_is_at_least "6.4" "$(ghc-version)"; then
188 describe_flag="describe"
189 else
190 describe_flag="--show-package"
191 fi
192
119 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 193 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
120} 194}
121 195
196# @FUNCTION: ghc-setup-pkg
197# @DESCRIPTION:
122# creates a local (package-specific) package 198# creates a local (package-specific) package
123# configuration file; the arguments should be 199# configuration file; the arguments should be
124# uninstalled package description files, each 200# uninstalled package description files, each
125# containing a single package description; if 201# containing a single package description; if
126# no arguments are given, the resulting file is 202# no arguments are given, the resulting file is
127# empty 203# empty
128ghc-setup-pkg() { 204ghc-setup-pkg() {
129 local localpkgconf 205 local localpkgconf
130 localpkgconf="${S}/$(ghc-localpkgconf)" 206 localpkgconf="${S}/$(ghc-localpkgconf)"
131 echo '[]' > "${localpkgconf}" 207 echo '[]' > "${localpkgconf}"
208 local update_flag
209 if version_is_at_least "6.4" "$(ghc-version)"; then
210 update_flag="update -"
211 else
212 update_flag="--update-package"
213 fi
132 for pkg in $*; do 214 for pkg in $*; do
133 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ 215 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
134 < "${pkg}" || die "failed to register ${pkg}" 216 < "${pkg}" || die "failed to register ${pkg}"
135 done 217 done
136} 218}
137 219
220# @FUNCTION: ghc-fixlibpath
221# @DESCRIPTION:
138# fixes the library and import directories path 222# fixes the library and import directories path
139# of the package configuration file 223# of the package configuration file
140ghc-fixlibpath() { 224ghc-fixlibpath() {
141 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 225 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
142 if [[ -n "$2" ]]; then 226 if [[ -n "$2" ]]; then
143 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 227 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
144 fi 228 fi
145} 229}
146 230
231# @FUNCTION: ghc-install-pkg
232# @DESCRIPTION:
147# moves the local (package-specific) package configuration 233# moves the local (package-specific) package configuration
148# file to its final destination 234# file to its final destination
149ghc-install-pkg() { 235ghc-install-pkg() {
150 mkdir -p "${D}/$(ghc-confdir)" 236 mkdir -p "${D}/$(ghc-confdir)"
151 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 237 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
152 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 238 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
153} 239}
154 240
241# @FUNCTION: ghc-register-pkg
242# @DESCRIPTION:
155# registers all packages in the local (package-specific) 243# registers all packages in the local (package-specific)
156# package configuration file 244# package configuration file
157ghc-register-pkg() { 245ghc-register-pkg() {
158 local localpkgconf 246 local localpkgconf
159 localpkgconf="$(ghc-confdir)/$1" 247 localpkgconf="$(ghc-confdir)/$1"
248 local update_flag
249 local describe_flag
250 if version_is_at_least "6.4" "$(ghc-version)"; then
251 update_flag="update -"
252 describe_flag="describe"
253 else
254 update_flag="--update-package"
255 describe_flag="--show-package"
256 fi
160 if [[ -f "${localpkgconf}" ]]; then 257 if [[ -f "${localpkgconf}" ]]; then
161 for pkg in $(ghc-listpkg "${localpkgconf}"); do 258 for pkg in $(ghc-listpkg "${localpkgconf}"); do
162 ebegin "Registering ${pkg} " 259 ebegin "Registering ${pkg} "
163 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ 260 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \
164 | $(ghc-getghcpkg) -u --force > /dev/null 261 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null
165 eend $? 262 eend $?
166 done 263 done
167 fi 264 fi
168} 265}
169 266
267# @FUNCTION: ghc-reregister
268# @DESCRIPTION:
170# re-adds all available .conf files to the global 269# re-adds all available .conf files to the global
171# package conf file, to be used on a ghc reinstallation 270# package conf file, to be used on a ghc reinstallation
172ghc-reregister() { 271ghc-reregister() {
272 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
173 einfo "Re-adding packages (may cause several harmless warnings) ..." 273 einfo "Re-adding packages (may cause several harmless warnings) ..."
174 if [ -d "$(ghc-confdir)" ]; then 274 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
175 pushd "$(ghc-confdir)" > /dev/null 275 if [ -d "${CONFDIR}" ]; then
276 pushd "${CONFDIR}" > /dev/null
176 for conf in *.conf; do 277 for conf in *.conf; do
177# einfo "Processing ${conf} ..." 278 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
178 ghc-register-pkg "${conf}"
179 done 279 done
180 popd > /dev/null 280 popd > /dev/null
181 fi 281 fi
182} 282}
183 283
284# @FUNCTION: ghc-unregister-pkg
285# @DESCRIPTION:
184# unregisters a package configuration file 286# unregisters a package configuration file
185# protected are all packages that are still contained in 287# protected are all packages that are still contained in
186# another package configuration file 288# another package configuration file
187ghc-unregister-pkg() { 289ghc-unregister-pkg() {
188 local localpkgconf 290 local localpkgconf
189 local i 291 local i
190 local pkg 292 local pkg
191 local protected 293 local unregister_flag
192 localpkgconf="$(ghc-confdir)/$1" 294 localpkgconf="$(ghc-confdir)/$1"
193 295
194 for i in $(ghc-confdir)/*.conf; do 296 if version_is_at_least "6.4" "$(ghc-version)"; then
195 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})" 297 unregister_flag="unregister"
196 done 298 else
197 # protected now contains the packages that cannot be unregistered yet 299 unregister_flag="--remove-package"
300 fi
198 301
199 if [[ -f "${localpkgconf}" ]]; then 302 if [[ -f "${localpkgconf}" ]]; then
200 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 303 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 304 if ! ghc-package-exists "${pkg}"; then
204 :
205 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 305 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
206 else 306 else
207 ebegin "Unregistering ${pkg} " 307 ebegin "Unregistering ${pkg} "
208 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null 308 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
209 eend $? 309 eend $?
210 fi 310 fi
211 done 311 done
212 fi 312 fi
213} 313}
214 314
315# @FUNCTION: ghc-reverse
316# @DESCRIPTION:
215# help-function: reverse a list 317# help-function: reverse a list
216ghc-reverse() { 318ghc-reverse() {
217 local result 319 local result
218 local i 320 local i
219 for i in $1; do 321 for i in $1; do
220 result="${i} ${result}" 322 result="${i} ${result}"
221 done 323 done
222 echo "${result}" 324 echo "${result}"
223} 325}
224 326
327# @FUNCTION: ghc-elem
328# @DESCRIPTION:
225# help-function: element-check 329# help-function: element-check
226ghc-elem() { 330ghc-elem() {
227 local i 331 local i
228 for i in $2; do 332 for i in $2; do
229 [[ "$1" == "${i}" ]] && return 0 333 [[ "$1" == "${i}" ]] && return 0
230 done 334 done
231 return 1 335 return 1
232} 336}
233 337
338# @FUNCTION: ghc-listpkg
339# @DESCRIPTION:
234# show the packages in a package configuration file 340# show the packages in a package configuration file
235ghc-listpkg() { 341ghc-listpkg() {
236 local ghcpkgcall 342 local ghcpkgcall
237 local i 343 local i
344 local extra_flags
345 if version_is_at_least '6.12.3' "$(ghc-version)"; then
346 extra_flags="${extra_flags} -v0"
347 fi
238 for i in $*; do 348 for i in $*; do
239 if ghc-cabal; then 349 if ghc-cabal; then
240 echo $($(ghc-getghcpkg) list -f "${i}") \ 350 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
241 | sed \ 351 | sed \
242 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 352 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
243 -e "s|/.*$||" \ 353 -e "s|/.*$||" \
244 -e "s|,| |g" -e "s|[()]||g" 354 -e "s|,| |g" -e "s|[(){}]||g"
245 else 355 else
246 echo $($(ghc-getghcpkgbin) -l -f "${i}") \ 356 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
247 | cut -f2 -d':' \ 357 | cut -f2 -d':' \
248 | sed 's:,: :g' 358 | sed 's:,: :g'
249 fi 359 fi
250 done 360 done
251} 361}
252 362
363# @FUNCTION: ghc-package_pkg_setup
364# @DESCRIPTION:
365# exported function: check if we have a consistent ghc installation
366ghc-package_pkg_setup() {
367 if ! ghc-saneghc; then
368 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin"
369 eerror "installed. Portage currently cannot work correctly with this setup."
370 eerror "There are several possibilities to work around this problem:"
371 eerror "(1) Up/downgrade ghc-bin to the same version as ghc."
372 eerror "(2) Unmerge ghc-bin."
373 eerror "(3) Unmerge ghc."
374 eerror "You probably want option 1 or 2."
375 die "Inconsistent versions of ghc and ghc-bin."
376 fi
377}
378
379# @FUNCTION: ghc-package_pkg_postinst
380# @DESCRIPTION:
253# exported function: registers the package-specific package 381# exported function: registers the package-specific package
254# configuration file 382# configuration file
255ghc-package_pkg_postinst() { 383ghc-package_pkg_postinst() {
256 ghc-register-pkg "$(ghc-localpkgconf)" 384 ghc-register-pkg "$(ghc-localpkgconf)"
257} 385}
258 386
387# @FUNCTION: ghc-package_pkg_prerm
388# @DESCRIPTION:
259# exported function: unregisters the package-specific package 389# exported function: unregisters the package-specific package
260# configuration file; a package contained therein is unregistered 390# configuration file; a package contained therein is unregistered
261# only if it the same package is not also contained in another 391# only if it the same package is not also contained in another
262# package configuration file ... 392# package configuration file ...
263ghc-package_pkg_prerm() { 393ghc-package_pkg_prerm() {
264 ghc-unregister-pkg "$(ghc-localpkgconf)" 394 ghc-unregister-pkg "$(ghc-localpkgconf)"
265} 395}
266 396
267EXPORT_FUNCTIONS pkg_postinst pkg_prerm 397EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm

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