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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 1.28 2010/06/24 13:50:10 kolmodin 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:${PATH}" 17# @DESCRIPTION:
15
16# for later configuration using environment variables/
17# returns the name of the ghc executable 18# returns the name of the ghc executable
18ghc-getghc() { 19ghc-getghc() {
19 type -P ghc 20 type -P ghc
20} 21}
21 22
23# @FUNCTION: ghc-getghcpkg
24# @DESCRIPTION:
22# returns the name of the ghc-pkg executable 25# Internal function determines returns the name of the ghc-pkg executable
23ghc-getghcpkg() { 26ghc-getghcpkg() {
24 type -P ghc-pkg 27 type -P ghc-pkg
25} 28}
26 29
30# @FUNCTION: ghc-getghcpkgbin
31# @DESCRIPTION:
27# returns the name of the ghc-pkg binary (ghc-pkg 32# returns the name of the ghc-pkg binary (ghc-pkg
28# itself usually is a shell script, and we have to 33# itself usually is a shell script, and we have to
29# bypass the script under certain circumstances); 34# bypass the script under certain circumstances);
30# for Cabal, we add an empty global package config file, 35# for Cabal, we add an empty global package config file,
31# because for some reason the global package file 36# because for some reason the global package file
42 else 47 else
43 echo "$(ghc-libdir)/ghc-pkg.bin" 48 echo "$(ghc-libdir)/ghc-pkg.bin"
44 fi 49 fi
45} 50}
46 51
52# @FUNCTION: ghc-version
53# @DESCRIPTION:
47# returns the version of ghc 54# returns the version of ghc
48_GHC_VERSION_CACHE="" 55_GHC_VERSION_CACHE=""
49ghc-version() { 56ghc-version() {
50 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 57 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
51 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" 58 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
52 fi 59 fi
53 echo "${_GHC_VERSION_CACHE}" 60 echo "${_GHC_VERSION_CACHE}"
54} 61}
55 62
63# @FUNCTION: ghc-cabal
64# @DESCRIPTION:
56# this function can be used to determine if ghc itself 65# this function can be used to determine if ghc itself
57# uses the Cabal package format; it has nothing to do 66# uses the Cabal package format; it has nothing to do
58# with the Cabal libraries ... ghc uses the Cabal package 67# with the Cabal libraries ... ghc uses the Cabal package
59# format since version 6.4 68# format since version 6.4
60ghc-cabal() { 69ghc-cabal() {
61 version_is_at_least "6.4" "$(ghc-version)" 70 version_is_at_least "6.4" "$(ghc-version)"
62} 71}
63 72
73# @FUNCTION: ghc-bestcabalversion
74# @DESCRIPTION:
64# return the best version of the Cabal library that is available 75# return the best version of the Cabal library that is available
65ghc-bestcabalversion() { 76ghc-bestcabalversion() {
66 local cabalversion 77 local cabalversion
67 if ghc-cabal; then 78 if ghc-cabal; then
68 # We ask portage, not ghc, so that we only pick up 79 # We ask portage, not ghc, so that we only pick up
73 # older ghc's don't support package versioning 84 # older ghc's don't support package versioning
74 echo Cabal 85 echo Cabal
75 fi 86 fi
76} 87}
77 88
89# @FUNCTION: ghc-sanecabal
90# @DESCRIPTION:
78# check if a standalone Cabal version is available for the 91# check if a standalone Cabal version is available for the
79# currently used ghc; takes minimal version of Cabal as 92# currently used ghc; takes minimal version of Cabal as
80# an optional argument 93# an optional argument
81ghc-sanecabal() { 94ghc-sanecabal() {
82 local f 95 local f
86 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 99 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
87 done 100 done
88 return 1 101 return 1
89} 102}
90 103
104# @FUNCTION: ghc-saneghc
105# @DESCRIPTION:
91# checks if ghc and ghc-bin are installed in the same version 106# checks if ghc and ghc-bin are installed in the same version
92# (if they're both installed); if this is not the case, we 107# (if they're both installed); if this is not the case, we
93# unfortunately cannot trust portage's dependency resolution 108# unfortunately cannot trust portage's dependency resolution
94ghc-saneghc() { 109ghc-saneghc() {
95 local ghcversion 110 local ghcversion
105 fi 120 fi
106 fi 121 fi
107 return 122 return
108} 123}
109 124
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 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
131}
132
133# @FUNCTION: ghc-extractportageversion
134# @DESCRIPTION:
110# extract the version of a portage-installed package 135# extract the version of a portage-installed package
111ghc-extractportageversion() { 136ghc-extractportageversion() {
112 local pkg 137 local pkg
113 local version 138 local version
114 pkg="$(best_version $1)" 139 pkg="$(best_version $1)"
116 version="${version%-r*}" 141 version="${version%-r*}"
117 version="${version%_pre*}" 142 version="${version%_pre*}"
118 echo "${version}" 143 echo "${version}"
119} 144}
120 145
146# @FUNCTION: ghc-libdir
147# @DESCRIPTION:
121# returns the library directory 148# returns the library directory
122_GHC_LIBDIR_CACHE="" 149_GHC_LIBDIR_CACHE=""
123ghc-libdir() { 150ghc-libdir() {
124 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 151 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
125 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 152 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
126 fi 153 fi
127 echo "${_GHC_LIBDIR_CACHE}" 154 echo "${_GHC_LIBDIR_CACHE}"
128} 155}
129 156
157# @FUNCTION: ghc-confdir
158# @DESCRIPTION:
130# returns the (Gentoo) library configuration directory 159# returns the (Gentoo) library configuration directory
131ghc-confdir() { 160ghc-confdir() {
132 echo "$(ghc-libdir)/gentoo" 161 echo "$(ghc-libdir)/gentoo"
133} 162}
134 163
164# @FUNCTION: ghc-localpkgconf
165# @DESCRIPTION:
135# returns the name of the local (package-specific) 166# returns the name of the local (package-specific)
136# package configuration file 167# package configuration file
137ghc-localpkgconf() { 168ghc-localpkgconf() {
138 echo "${PF}.conf" 169 echo "${PF}.conf"
139} 170}
140 171
172# @FUNCTION: ghc-makeghcilib
173# @DESCRIPTION:
141# make a ghci foo.o file from a libfoo.a file 174# make a ghci foo.o file from a libfoo.a file
142ghc-makeghcilib() { 175ghc-makeghcilib() {
143 local outfile 176 local outfile
144 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 177 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
145 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 178 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
146} 179}
147 180
181# @FUNCTION: ghc-makeghcilib
182# @DESCRIPTION:
148# tests if a ghc package exists 183# tests if a ghc package exists
149ghc-package-exists() { 184ghc-package-exists() {
150 local describe_flag 185 local describe_flag
151 if version_is_at_least "6.4" "$(ghc-version)"; then 186 if version_is_at_least "6.4" "$(ghc-version)"; then
152 describe_flag="describe" 187 describe_flag="describe"
155 fi 190 fi
156 191
157 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1 192 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
158} 193}
159 194
195# @FUNCTION: ghc-setup-pkg
196# @DESCRIPTION:
160# creates a local (package-specific) package 197# creates a local (package-specific) package
161# configuration file; the arguments should be 198# configuration file; the arguments should be
162# uninstalled package description files, each 199# uninstalled package description files, each
163# containing a single package description; if 200# containing a single package description; if
164# no arguments are given, the resulting file is 201# no arguments are given, the resulting file is
177 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \ 214 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
178 < "${pkg}" || die "failed to register ${pkg}" 215 < "${pkg}" || die "failed to register ${pkg}"
179 done 216 done
180} 217}
181 218
219# @FUNCTION: ghc-fixlibpath
220# @DESCRIPTION:
182# fixes the library and import directories path 221# fixes the library and import directories path
183# of the package configuration file 222# of the package configuration file
184ghc-fixlibpath() { 223ghc-fixlibpath() {
185 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 224 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
186 if [[ -n "$2" ]]; then 225 if [[ -n "$2" ]]; then
187 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 226 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
188 fi 227 fi
189} 228}
190 229
230# @FUNCTION: ghc-install-pkg
231# @DESCRIPTION:
191# moves the local (package-specific) package configuration 232# moves the local (package-specific) package configuration
192# file to its final destination 233# file to its final destination
193ghc-install-pkg() { 234ghc-install-pkg() {
194 mkdir -p "${D}/$(ghc-confdir)" 235 mkdir -p "${D}/$(ghc-confdir)"
195 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 236 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
196 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 237 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
197} 238}
198 239
240# @FUNCTION: ghc-register-pkg
241# @DESCRIPTION:
199# registers all packages in the local (package-specific) 242# registers all packages in the local (package-specific)
200# package configuration file 243# package configuration file
201ghc-register-pkg() { 244ghc-register-pkg() {
202 local localpkgconf 245 local localpkgconf
203 localpkgconf="$(ghc-confdir)/$1" 246 localpkgconf="$(ghc-confdir)/$1"
218 eend $? 261 eend $?
219 done 262 done
220 fi 263 fi
221} 264}
222 265
266# @FUNCTION: ghc-reregister
267# @DESCRIPTION:
223# re-adds all available .conf files to the global 268# re-adds all available .conf files to the global
224# package conf file, to be used on a ghc reinstallation 269# package conf file, to be used on a ghc reinstallation
225ghc-reregister() { 270ghc-reregister() {
271 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
226 einfo "Re-adding packages (may cause several harmless warnings) ..." 272 einfo "Re-adding packages (may cause several harmless warnings) ..."
227 PATH="/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)" 273 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
228 if [ -d "${CONFDIR}" ]; then 274 if [ -d "${CONFDIR}" ]; then
229 pushd "${CONFDIR}" > /dev/null 275 pushd "${CONFDIR}" > /dev/null
230 for conf in *.conf; do 276 for conf in *.conf; do
231 PATH="/usr/bin:${PATH}" ghc-register-pkg "${conf}" 277 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
232 done 278 done
233 popd > /dev/null 279 popd > /dev/null
234 fi 280 fi
235} 281}
236 282
283# @FUNCTION: ghc-unregister-pkg
284# @DESCRIPTION:
237# unregisters a package configuration file 285# unregisters a package configuration file
238# protected are all packages that are still contained in 286# protected are all packages that are still contained in
239# another package configuration file 287# another package configuration file
240ghc-unregister-pkg() { 288ghc-unregister-pkg() {
241 local localpkgconf 289 local localpkgconf
242 local i 290 local i
243 local pkg 291 local pkg
244 local protected
245 local unregister_flag 292 local unregister_flag
246 localpkgconf="$(ghc-confdir)/$1" 293 localpkgconf="$(ghc-confdir)/$1"
247 294
248 if version_is_at_least "6.4" "$(ghc-version)"; then 295 if version_is_at_least "6.4" "$(ghc-version)"; then
249 unregister_flag="unregister" 296 unregister_flag="unregister"
250 else 297 else
251 unregister_flag="--remove-package" 298 unregister_flag="--remove-package"
252 fi 299 fi
253 300
254 for i in $(ghc-confdir)/*.conf; do
255 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
256 done
257 # protected now contains the packages that cannot be unregistered yet
258
259 if [[ -f "${localpkgconf}" ]]; then 301 if [[ -f "${localpkgconf}" ]]; then
260 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 302 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
261 if $(ghc-elem "${pkg}" "${protected}"); then
262 einfo "Package ${pkg} is protected."
263 elif ! ghc-package-exists "${pkg}"; then 303 if ! ghc-package-exists "${pkg}"; then
264 :
265 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 304 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
266 else 305 else
267 ebegin "Unregistering ${pkg} " 306 ebegin "Unregistering ${pkg} "
268 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null 307 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
269 eend $? 308 eend $?
270 fi 309 fi
271 done 310 done
272 fi 311 fi
273} 312}
274 313
314# @FUNCTION: ghc-reverse
315# @DESCRIPTION:
275# help-function: reverse a list 316# help-function: reverse a list
276ghc-reverse() { 317ghc-reverse() {
277 local result 318 local result
278 local i 319 local i
279 for i in $1; do 320 for i in $1; do
280 result="${i} ${result}" 321 result="${i} ${result}"
281 done 322 done
282 echo "${result}" 323 echo "${result}"
283} 324}
284 325
326# @FUNCTION: ghc-elem
327# @DESCRIPTION:
285# help-function: element-check 328# help-function: element-check
286ghc-elem() { 329ghc-elem() {
287 local i 330 local i
288 for i in $2; do 331 for i in $2; do
289 [[ "$1" == "${i}" ]] && return 0 332 [[ "$1" == "${i}" ]] && return 0
290 done 333 done
291 return 1 334 return 1
292} 335}
293 336
337# @FUNCTION: ghc-listpkg
338# @DESCRIPTION:
294# show the packages in a package configuration file 339# show the packages in a package configuration file
295ghc-listpkg() { 340ghc-listpkg() {
296 local ghcpkgcall 341 local ghcpkgcall
297 local i 342 local i
298 local extra_flags 343 local extra_flags
312 | sed 's:,: :g' 357 | sed 's:,: :g'
313 fi 358 fi
314 done 359 done
315} 360}
316 361
362# @FUNCTION: ghc-package_pkg_setup
363# @DESCRIPTION:
317# exported function: check if we have a consistent ghc installation 364# exported function: check if we have a consistent ghc installation
318ghc-package_pkg_setup() { 365ghc-package_pkg_setup() {
319 if ! ghc-saneghc; then 366 if ! ghc-saneghc; then
320 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin" 367 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin"
321 eerror "installed. Portage currently cannot work correctly with this setup." 368 eerror "installed. Portage currently cannot work correctly with this setup."
326 eerror "You probably want option 1 or 2." 373 eerror "You probably want option 1 or 2."
327 die "Inconsistent versions of ghc and ghc-bin." 374 die "Inconsistent versions of ghc and ghc-bin."
328 fi 375 fi
329} 376}
330 377
378# @FUNCTION: ghc-package_pkg_postinst
379# @DESCRIPTION:
331# exported function: registers the package-specific package 380# exported function: registers the package-specific package
332# configuration file 381# configuration file
333ghc-package_pkg_postinst() { 382ghc-package_pkg_postinst() {
334 ghc-register-pkg "$(ghc-localpkgconf)" 383 ghc-register-pkg "$(ghc-localpkgconf)"
335} 384}
336 385
386# @FUNCTION: ghc-package_pkg_prerm
387# @DESCRIPTION:
337# exported function: unregisters the package-specific package 388# exported function: unregisters the package-specific package
338# configuration file; a package contained therein is unregistered 389# configuration file; a package contained therein is unregistered
339# 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
340# package configuration file ... 391# package configuration file ...
341ghc-package_pkg_prerm() { 392ghc-package_pkg_prerm() {

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