/[gentoo-x86]/eclass/ghc-package.eclass
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1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2004 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 1.22 2007/03/13 12:02:04 kosmikus Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.27 2009/03/23 20:06:19 kolmodin Exp $
4# 4#
5# Author: Andres Loeh <kosmikus@gentoo.org> 5# Author: Andres Loeh <kosmikus@gentoo.org>
6# Maintained by: Haskell herd <haskell@gentoo.org> 6# Maintained by: Haskell herd <haskell@gentoo.org>
7# 7#
8# This eclass helps with the Glasgow Haskell Compiler's package 8# This eclass helps with the Glasgow Haskell Compiler's package
29# bypass the script under certain circumstances); 29# bypass the script under certain circumstances);
30# for Cabal, we add an empty global package config file, 30# for Cabal, we add an empty global package config file,
31# because for some reason the global package file 31# because for some reason the global package file
32# must be specified 32# must be specified
33ghc-getghcpkgbin() { 33ghc-getghcpkgbin() {
34 if version_is_at_least "6.10" "$(ghc-version)"; then
35 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
36 # the wrapper script with the static flags
37 echo '[]' > "${T}/empty.conf"
38 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
34 if ghc-cabal; then 39 elif ghc-cabal; then
35 echo '[]' > "${T}/empty.conf" 40 echo '[]' > "${T}/empty.conf"
36 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" 41 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
37 else 42 else
38 echo "$(ghc-libdir)/ghc-pkg.bin" 43 echo "$(ghc-libdir)/ghc-pkg.bin"
39 fi 44 fi
56 version_is_at_least "6.4" "$(ghc-version)" 61 version_is_at_least "6.4" "$(ghc-version)"
57} 62}
58 63
59# return the best version of the Cabal library that is available 64# return the best version of the Cabal library that is available
60ghc-bestcabalversion() { 65ghc-bestcabalversion() {
61 local cabalpackage
62 local cabalversion 66 local cabalversion
63 if ghc-cabal; then 67 if ghc-cabal; then
64 # We ask portage, not ghc, so that we only pick up 68 # We ask portage, not ghc, so that we only pick up
65 # portage-installed cabal versions. 69 # portage-installed cabal versions.
66 cabalpackage="$(best_version dev-haskell/cabal)" 70 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
67 cabalversion="${cabalpackage#dev-haskell/cabal-}"
68 cabalversion="${cabalversion%-r*}"
69 cabalversion="${cabalversion%_pre*}"
70 echo "Cabal-${cabalversion}" 71 echo "Cabal-${cabalversion}"
71 else 72 else
72 # older ghc's don't support package versioning 73 # older ghc's don't support package versioning
73 echo Cabal 74 echo Cabal
74 fi 75 fi
85 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 86 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
86 done 87 done
87 return 1 88 return 1
88} 89}
89 90
91# checks if ghc and ghc-bin are installed in the same version
92# (if they're both installed); if this is not the case, we
93# unfortunately cannot trust portage's dependency resolution
94ghc-saneghc() {
95 local ghcversion
96 local ghcbinversion
97 if [[ "${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}" != "${ghcbinversion}" ]]; then
104 return 1
105 fi
106 fi
107 return
108}
109
110# extract the version of a portage-installed package
111ghc-extractportageversion() {
112 local pkg
113 local version
114 pkg="$(best_version $1)"
115 version="${pkg#$1-}"
116 version="${version%-r*}"
117 version="${version%_pre*}"
118 echo "${version}"
119}
120
90# returns the library directory 121# returns the library directory
91_GHC_LIBDIR_CACHE="" 122_GHC_LIBDIR_CACHE=""
92ghc-libdir() { 123ghc-libdir() {
93 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 124 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
94 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 125 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
114 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 145 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
115} 146}
116 147
117# tests if a ghc package exists 148# tests if a ghc package exists
118ghc-package-exists() { 149ghc-package-exists() {
150 local describe_flag
151 if version_is_at_least "6.4" "$(ghc-version)"; then
152 describe_flag="describe"
153 else
154 describe_flag="--show-package"
155 fi
156
119 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 157 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
120} 158}
121 159
122# creates a local (package-specific) package 160# creates a local (package-specific) package
123# configuration file; the arguments should be 161# configuration file; the arguments should be
124# uninstalled package description files, each 162# uninstalled package description files, each
127# empty 165# empty
128ghc-setup-pkg() { 166ghc-setup-pkg() {
129 local localpkgconf 167 local localpkgconf
130 localpkgconf="${S}/$(ghc-localpkgconf)" 168 localpkgconf="${S}/$(ghc-localpkgconf)"
131 echo '[]' > "${localpkgconf}" 169 echo '[]' > "${localpkgconf}"
170 local update_flag
171 if version_is_at_least "6.4" "$(ghc-version)"; then
172 update_flag="update -"
173 else
174 update_flag="--update-package"
175 fi
132 for pkg in $*; do 176 for pkg in $*; do
133 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ 177 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
134 < "${pkg}" || die "failed to register ${pkg}" 178 < "${pkg}" || die "failed to register ${pkg}"
135 done 179 done
136} 180}
137 181
138# fixes the library and import directories path 182# fixes the library and import directories path
155# registers all packages in the local (package-specific) 199# registers all packages in the local (package-specific)
156# package configuration file 200# package configuration file
157ghc-register-pkg() { 201ghc-register-pkg() {
158 local localpkgconf 202 local localpkgconf
159 localpkgconf="$(ghc-confdir)/$1" 203 localpkgconf="$(ghc-confdir)/$1"
204 local update_flag
205 local describe_flag
206 if version_is_at_least "6.4" "$(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
160 if [[ -f "${localpkgconf}" ]]; then 213 if [[ -f "${localpkgconf}" ]]; then
161 for pkg in $(ghc-listpkg "${localpkgconf}"); do 214 for pkg in $(ghc-listpkg "${localpkgconf}"); do
162 ebegin "Registering ${pkg} " 215 ebegin "Registering ${pkg} "
163 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ 216 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \
164 | $(ghc-getghcpkg) -u --force > /dev/null 217 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null
165 eend $? 218 eend $?
166 done 219 done
167 fi 220 fi
168} 221}
169 222
170# re-adds all available .conf files to the global 223# re-adds all available .conf files to the global
171# package conf file, to be used on a ghc reinstallation 224# package conf file, to be used on a ghc reinstallation
172ghc-reregister() { 225ghc-reregister() {
173 einfo "Re-adding packages (may cause several harmless warnings) ..." 226 einfo "Re-adding packages (may cause several harmless warnings) ..."
174 if [ -d "$(ghc-confdir)" ]; then 227 PATH="/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
175 pushd "$(ghc-confdir)" > /dev/null 228 if [ -d "${CONFDIR}" ]; then
229 pushd "${CONFDIR}" > /dev/null
176 for conf in *.conf; do 230 for conf in *.conf; do
177# einfo "Processing ${conf} ..." 231 PATH="/usr/bin:${PATH}" ghc-register-pkg "${conf}"
178 ghc-register-pkg "${conf}"
179 done 232 done
180 popd > /dev/null 233 popd > /dev/null
181 fi 234 fi
182} 235}
183 236
187ghc-unregister-pkg() { 240ghc-unregister-pkg() {
188 local localpkgconf 241 local localpkgconf
189 local i 242 local i
190 local pkg 243 local pkg
191 local protected 244 local protected
245 local unregister_flag
192 localpkgconf="$(ghc-confdir)/$1" 246 localpkgconf="$(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
193 253
194 for i in $(ghc-confdir)/*.conf; do 254 for i in $(ghc-confdir)/*.conf; do
195 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})" 255 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
196 done 256 done
197 # protected now contains the packages that cannot be unregistered yet 257 # protected now contains the packages that cannot be unregistered yet
203 elif ! ghc-package-exists "${pkg}"; then 263 elif ! ghc-package-exists "${pkg}"; then
204 : 264 :
205 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 265 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
206 else 266 else
207 ebegin "Unregistering ${pkg} " 267 ebegin "Unregistering ${pkg} "
208 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null 268 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
209 eend $? 269 eend $?
210 fi 270 fi
211 done 271 done
212 fi 272 fi
213} 273}
239 if ghc-cabal; then 299 if ghc-cabal; then
240 echo $($(ghc-getghcpkg) list -f "${i}") \ 300 echo $($(ghc-getghcpkg) list -f "${i}") \
241 | sed \ 301 | sed \
242 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 302 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
243 -e "s|/.*$||" \ 303 -e "s|/.*$||" \
244 -e "s|,| |g" -e "s|[()]||g" 304 -e "s|,| |g" -e "s|[(){}]||g"
245 else 305 else
246 echo $($(ghc-getghcpkgbin) -l -f "${i}") \ 306 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
247 | cut -f2 -d':' \ 307 | cut -f2 -d':' \
248 | sed 's:,: :g' 308 | sed 's:,: :g'
249 fi 309 fi
250 done 310 done
251} 311}
252 312
253# exported function: check if we have a consistent ghc installation 313# exported function: check if we have a consistent ghc installation
254ghc-package_pkg_setup() { 314ghc-package_pkg_setup() {
255 #place holder for sanity check of ghc vs ghc-bin version issues 315 if ! ghc-saneghc; then
256 return 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
257} 325}
258 326
259# exported function: registers the package-specific package 327# exported function: registers the package-specific package
260# configuration file 328# configuration file
261ghc-package_pkg_postinst() { 329ghc-package_pkg_postinst() {

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