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1# Copyright 1999-2004 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/ghc-package.eclass,v 1.27 2009/03/23 20:06:19 kolmodin Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.34 2012/09/14 02:51:23 gienah 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:${PATH}" 17# @DESCRIPTION:
15
16# for later configuration using environment variables/
17# returns the name of the ghc executable 18# returns the name of the ghc executable
18ghc-getghc() { 19ghc-getghc() {
19 type -P ghc 20 type -P ghc
20} 21}
21 22
23# @FUNCTION: ghc-getghcpkg
24# @DESCRIPTION:
22# returns the name of the ghc-pkg executable 25# Internal function determines returns the name of the ghc-pkg executable
23ghc-getghcpkg() { 26ghc-getghcpkg() {
24 type -P ghc-pkg 27 type -P ghc-pkg
25} 28}
26 29
30# @FUNCTION: ghc-getghcpkgbin
31# @DESCRIPTION:
27# returns the name of the ghc-pkg binary (ghc-pkg 32# returns the name of the ghc-pkg binary (ghc-pkg
28# itself usually is a shell script, and we have to 33# itself usually is a shell script, and we have to
29# bypass the script under certain circumstances); 34# bypass the script under certain circumstances);
30# for Cabal, we add an empty global package config file, 35# for Cabal, we add an empty global package config file,
31# because for some reason the global package file 36# because for some reason the global package file
32# must be specified 37# must be specified
33ghc-getghcpkgbin() { 38ghc-getghcpkgbin() {
34 if version_is_at_least "6.10" "$(ghc-version)"; then
35 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs 39 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
36 # the wrapper script with the static flags 40 # the wrapper script with the static flags
37 echo '[]' > "${T}/empty.conf" 41 echo '[]' > "${T}/empty.conf"
42 if version_is_at_least "7.5.20120516" "$(ghc-version)"; then
43 echo "$(ghc-libdir)/ghc-pkg" "--global-package-db=${T}/empty.conf"
44 else
38 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf" 45 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
39 elif ghc-cabal; then
40 echo '[]' > "${T}/empty.conf"
41 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
42 else
43 echo "$(ghc-libdir)/ghc-pkg.bin"
44 fi 46 fi
45} 47}
46 48
49# @FUNCTION: ghc-version
50# @DESCRIPTION:
47# returns the version of ghc 51# returns the version of ghc
48_GHC_VERSION_CACHE="" 52_GHC_VERSION_CACHE=""
49ghc-version() { 53ghc-version() {
50 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 54 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
51 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" 55 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
52 fi 56 fi
53 echo "${_GHC_VERSION_CACHE}" 57 echo "${_GHC_VERSION_CACHE}"
54} 58}
55 59
56# this function can be used to determine if ghc itself 60# @FUNCTION: ghc-bestcabalversion
57# uses the Cabal package format; it has nothing to do 61# @DESCRIPTION:
58# with the Cabal libraries ... ghc uses the Cabal package
59# format since version 6.4
60ghc-cabal() {
61 version_is_at_least "6.4" "$(ghc-version)"
62}
63
64# return the best version of the Cabal library that is available 62# return the best version of the Cabal library that is available
65ghc-bestcabalversion() { 63ghc-bestcabalversion() {
66 local cabalversion
67 if ghc-cabal; then
68 # We ask portage, not ghc, so that we only pick up 64 # We ask portage, not ghc, so that we only pick up
69 # portage-installed cabal versions. 65 # portage-installed cabal versions.
70 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)" 66 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
71 echo "Cabal-${cabalversion}" 67 echo "Cabal-${cabalversion}"
72 else
73 # older ghc's don't support package versioning
74 echo Cabal
75 fi
76} 68}
77 69
70# @FUNCTION: ghc-sanecabal
71# @DESCRIPTION:
78# check if a standalone Cabal version is available for the 72# check if a standalone Cabal version is available for the
79# currently used ghc; takes minimal version of Cabal as 73# currently used ghc; takes minimal version of Cabal as
80# an optional argument 74# an optional argument
81ghc-sanecabal() { 75ghc-sanecabal() {
82 local f 76 local f
86 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 80 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
87 done 81 done
88 return 1 82 return 1
89} 83}
90 84
91# checks if ghc and ghc-bin are installed in the same version 85# @FUNCTION: ghc-supports-shared-libraries
92# (if they're both installed); if this is not the case, we 86# @DESCRIPTION:
93# unfortunately cannot trust portage's dependency resolution 87# checks if ghc is built with support for building
94ghc-saneghc() { 88# shared libraries (aka '-dynamic' option)
95 local ghcversion 89ghc-supports-shared-libraries() {
96 local ghcbinversion 90 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
97 if [[ "${PN}" == "ghc" || "${PN}" == "ghc-bin" ]]; then
98 return
99 fi
100 if has_version dev-lang/ghc && has_version dev-lang/ghc-bin; then
101 ghcversion="$(ghc-extractportageversion dev-lang/ghc)"
102 ghcbinversion="$(ghc-extractportageversion dev-lang/ghc-bin)"
103 if [[ "${ghcversion}" != "${ghcbinversion}" ]]; then
104 return 1
105 fi
106 fi
107 return
108} 91}
109 92
93# @FUNCTION: ghc-extractportageversion
94# @DESCRIPTION:
110# extract the version of a portage-installed package 95# extract the version of a portage-installed package
111ghc-extractportageversion() { 96ghc-extractportageversion() {
112 local pkg 97 local pkg
113 local version 98 local version
114 pkg="$(best_version $1)" 99 pkg="$(best_version $1)"
116 version="${version%-r*}" 101 version="${version%-r*}"
117 version="${version%_pre*}" 102 version="${version%_pre*}"
118 echo "${version}" 103 echo "${version}"
119} 104}
120 105
106# @FUNCTION: ghc-libdir
107# @DESCRIPTION:
121# returns the library directory 108# returns the library directory
122_GHC_LIBDIR_CACHE="" 109_GHC_LIBDIR_CACHE=""
123ghc-libdir() { 110ghc-libdir() {
124 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 111 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
125 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 112 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
126 fi 113 fi
127 echo "${_GHC_LIBDIR_CACHE}" 114 echo "${_GHC_LIBDIR_CACHE}"
128} 115}
129 116
117# @FUNCTION: ghc-confdir
118# @DESCRIPTION:
130# returns the (Gentoo) library configuration directory 119# returns the (Gentoo) library configuration directory
131ghc-confdir() { 120ghc-confdir() {
132 echo "$(ghc-libdir)/gentoo" 121 echo "$(ghc-libdir)/gentoo"
133} 122}
134 123
124# @FUNCTION: ghc-localpkgconf
125# @DESCRIPTION:
135# returns the name of the local (package-specific) 126# returns the name of the local (package-specific)
136# package configuration file 127# package configuration file
137ghc-localpkgconf() { 128ghc-localpkgconf() {
138 echo "${PF}.conf" 129 echo "${PF}.conf"
139} 130}
140 131
132# @FUNCTION: ghc-makeghcilib
133# @DESCRIPTION:
141# make a ghci foo.o file from a libfoo.a file 134# make a ghci foo.o file from a libfoo.a file
142ghc-makeghcilib() { 135ghc-makeghcilib() {
143 local outfile 136 local outfile
144 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 137 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
145 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 138 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
146} 139}
147 140
141# @FUNCTION: ghc-package-exists
142# @DESCRIPTION:
148# tests if a ghc package exists 143# tests if a ghc package exists
149ghc-package-exists() { 144ghc-package-exists() {
150 local describe_flag
151 if version_is_at_least "6.4" "$(ghc-version)"; then
152 describe_flag="describe"
153 else
154 describe_flag="--show-package"
155 fi
156
157 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1 145 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
158} 146}
159 147
148# @FUNCTION: ghc-setup-pkg
149# @DESCRIPTION:
160# creates a local (package-specific) package 150# creates a local (package-specific) package
161# configuration file; the arguments should be 151# configuration file; the arguments should be
162# uninstalled package description files, each 152# uninstalled package description files, each
163# containing a single package description; if 153# containing a single package description; if
164# no arguments are given, the resulting file is 154# no arguments are given, the resulting file is
165# empty 155# empty
166ghc-setup-pkg() { 156ghc-setup-pkg() {
167 local localpkgconf
168 localpkgconf="${S}/$(ghc-localpkgconf)" 157 local localpkgconf="${S}/$(ghc-localpkgconf)"
169 echo '[]' > "${localpkgconf}" 158 echo '[]' > "${localpkgconf}"
170 local update_flag 159
171 if version_is_at_least "6.4" "$(ghc-version)"; then
172 update_flag="update -"
173 else
174 update_flag="--update-package"
175 fi
176 for pkg in $*; do 160 for pkg in $*; do
177 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \ 161 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
178 < "${pkg}" || die "failed to register ${pkg}" 162 < "${pkg}" || die "failed to register ${pkg}"
179 done 163 done
180} 164}
181 165
166# @FUNCTION: ghc-fixlibpath
167# @DESCRIPTION:
182# fixes the library and import directories path 168# fixes the library and import directories path
183# of the package configuration file 169# of the package configuration file
184ghc-fixlibpath() { 170ghc-fixlibpath() {
185 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 171 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
186 if [[ -n "$2" ]]; then 172 if [[ -n "$2" ]]; then
187 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 173 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
188 fi 174 fi
189} 175}
190 176
177# @FUNCTION: ghc-install-pkg
178# @DESCRIPTION:
191# moves the local (package-specific) package configuration 179# moves the local (package-specific) package configuration
192# file to its final destination 180# file to its final destination
193ghc-install-pkg() { 181ghc-install-pkg() {
194 mkdir -p "${D}/$(ghc-confdir)" 182 mkdir -p "${D}/$(ghc-confdir)"
195 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 183 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
196 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 184 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
197} 185}
198 186
187# @FUNCTION: ghc-register-pkg
188# @DESCRIPTION:
199# registers all packages in the local (package-specific) 189# registers all packages in the local (package-specific)
200# package configuration file 190# package configuration file
201ghc-register-pkg() { 191ghc-register-pkg() {
202 local localpkgconf
203 localpkgconf="$(ghc-confdir)/$1" 192 local localpkgconf="$(ghc-confdir)/$1"
204 local update_flag 193
205 local describe_flag
206 if version_is_at_least "6.4" "$(ghc-version)"; then
207 update_flag="update -"
208 describe_flag="describe"
209 else
210 update_flag="--update-package"
211 describe_flag="--show-package"
212 fi
213 if [[ -f "${localpkgconf}" ]]; then 194 if [[ -f "${localpkgconf}" ]]; then
214 for pkg in $(ghc-listpkg "${localpkgconf}"); do 195 for pkg in $(ghc-listpkg "${localpkgconf}"); do
215 ebegin "Registering ${pkg} " 196 ebegin "Registering ${pkg} "
216 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \ 197 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
217 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null 198 | $(ghc-getghcpkg) update - --force > /dev/null
218 eend $? 199 eend $?
219 done 200 done
220 fi 201 fi
221} 202}
222 203
204# @FUNCTION: ghc-reregister
205# @DESCRIPTION:
223# re-adds all available .conf files to the global 206# re-adds all available .conf files to the global
224# package conf file, to be used on a ghc reinstallation 207# package conf file, to be used on a ghc reinstallation
225ghc-reregister() { 208ghc-reregister() {
209 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
226 einfo "Re-adding packages (may cause several harmless warnings) ..." 210 einfo "Re-adding packages (may cause several harmless warnings) ..."
227 PATH="/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)" 211 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
228 if [ -d "${CONFDIR}" ]; then 212 if [ -d "${CONFDIR}" ]; then
229 pushd "${CONFDIR}" > /dev/null 213 pushd "${CONFDIR}" > /dev/null
230 for conf in *.conf; do 214 for conf in *.conf; do
231 PATH="/usr/bin:${PATH}" ghc-register-pkg "${conf}" 215 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
232 done 216 done
233 popd > /dev/null 217 popd > /dev/null
234 fi 218 fi
235} 219}
236 220
221# @FUNCTION: ghc-unregister-pkg
222# @DESCRIPTION:
237# unregisters a package configuration file 223# unregisters a package configuration file
238# protected are all packages that are still contained in 224# protected are all packages that are still contained in
239# another package configuration file 225# another package configuration file
240ghc-unregister-pkg() { 226ghc-unregister-pkg() {
241 local localpkgconf 227 local localpkgconf="$(ghc-confdir)/$1"
242 local i 228 local i
243 local pkg 229 local pkg
244 local protected
245 local unregister_flag
246 localpkgconf="$(ghc-confdir)/$1"
247
248 if version_is_at_least "6.4" "$(ghc-version)"; then
249 unregister_flag="unregister"
250 else
251 unregister_flag="--remove-package"
252 fi
253
254 for i in $(ghc-confdir)/*.conf; do
255 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
256 done
257 # protected now contains the packages that cannot be unregistered yet
258 230
259 if [[ -f "${localpkgconf}" ]]; then 231 if [[ -f "${localpkgconf}" ]]; then
260 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 232 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 233 if ! ghc-package-exists "${pkg}"; then
264 :
265 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 234 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
266 else 235 else
267 ebegin "Unregistering ${pkg} " 236 ebegin "Unregistering ${pkg} "
268 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null 237 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
269 eend $? 238 eend $?
270 fi 239 fi
271 done 240 done
272 fi 241 fi
273} 242}
274 243
244# @FUNCTION: ghc-reverse
245# @DESCRIPTION:
275# help-function: reverse a list 246# help-function: reverse a list
276ghc-reverse() { 247ghc-reverse() {
277 local result 248 local result
278 local i 249 local i
279 for i in $1; do 250 for i in $1; do
280 result="${i} ${result}" 251 result="${i} ${result}"
281 done 252 done
282 echo "${result}" 253 echo "${result}"
283} 254}
284 255
256# @FUNCTION: ghc-elem
257# @DESCRIPTION:
285# help-function: element-check 258# help-function: element-check
286ghc-elem() { 259ghc-elem() {
287 local i 260 local i
288 for i in $2; do 261 for i in $2; do
289 [[ "$1" == "${i}" ]] && return 0 262 [[ "$1" == "${i}" ]] && return 0
290 done 263 done
291 return 1 264 return 1
292} 265}
293 266
267# @FUNCTION: ghc-listpkg
268# @DESCRIPTION:
294# show the packages in a package configuration file 269# show the packages in a package configuration file
295ghc-listpkg() { 270ghc-listpkg() {
296 local ghcpkgcall 271 local ghcpkgcall
297 local i 272 local i
273 local extra_flags
274 if version_is_at_least '6.12.3' "$(ghc-version)"; then
275 extra_flags="${extra_flags} -v0"
276 fi
298 for i in $*; do 277 for i in $*; do
299 if ghc-cabal; then
300 echo $($(ghc-getghcpkg) list -f "${i}") \ 278 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
301 | sed \ 279 | sed \
302 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 280 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
303 -e "s|/.*$||" \ 281 -e "s|/.*$||" \
304 -e "s|,| |g" -e "s|[(){}]||g" 282 -e "s|,| |g" -e "s|[(){}]||g"
305 else
306 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
307 | cut -f2 -d':' \
308 | sed 's:,: :g'
309 fi
310 done 283 done
311} 284}
312 285
313# exported function: check if we have a consistent ghc installation 286# @FUNCTION: ghc-package_pkg_postinst
314ghc-package_pkg_setup() { 287# @DESCRIPTION:
315 if ! ghc-saneghc; then
316 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin"
317 eerror "installed. Portage currently cannot work correctly with this setup."
318 eerror "There are several possibilities to work around this problem:"
319 eerror "(1) Up/downgrade ghc-bin to the same version as ghc."
320 eerror "(2) Unmerge ghc-bin."
321 eerror "(3) Unmerge ghc."
322 eerror "You probably want option 1 or 2."
323 die "Inconsistent versions of ghc and ghc-bin."
324 fi
325}
326
327# exported function: registers the package-specific package 288# exported function: registers the package-specific package
328# configuration file 289# configuration file
329ghc-package_pkg_postinst() { 290ghc-package_pkg_postinst() {
330 ghc-register-pkg "$(ghc-localpkgconf)" 291 ghc-register-pkg "$(ghc-localpkgconf)"
331} 292}
332 293
294# @FUNCTION: ghc-package_pkg_prerm
295# @DESCRIPTION:
333# exported function: unregisters the package-specific package 296# exported function: unregisters the package-specific package
334# configuration file; a package contained therein is unregistered 297# configuration file; a package contained therein is unregistered
335# only if it the same package is not also contained in another 298# only if it the same package is not also contained in another
336# package configuration file ... 299# package configuration file ...
337ghc-package_pkg_prerm() { 300ghc-package_pkg_prerm() {
338 ghc-unregister-pkg "$(ghc-localpkgconf)" 301 ghc-unregister-pkg "$(ghc-localpkgconf)"
339} 302}
340 303
341EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm 304EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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