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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 1.20 2006/10/04 17:45:35 kosmikus 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:${PATH}" 17# @DESCRIPTION:
15
16# for later configuration using environment variables/
17# returns the name of the ghc executable 18# returns the name of the ghc executable
18ghc-getghc() { 19ghc-getghc() {
19 echo "$(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 "$(which ghc-pkg)" 27 type -P ghc-pkg
25} 28}
26 29
30# @FUNCTION: ghc-getghcpkgbin
31# @DESCRIPTION:
27# returns the name of the ghc-pkg binary (ghc-pkg 32# returns the name of the ghc-pkg binary (ghc-pkg
28# itself usually is a shell script, and we have to 33# itself usually is a shell script, and we have to
29# bypass the script under certain circumstances); 34# bypass the script under certain circumstances);
30# for Cabal, we add an empty global package config file, 35# for Cabal, we add an empty global package config file,
31# because for some reason the global package file 36# because for some reason the global package file
32# must be specified 37# must be specified
33ghc-getghcpkgbin() { 38ghc-getghcpkgbin() {
34 if ghc-cabal; then 39 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
40 # the wrapper script with the static flags
35 echo '[]' > "${T}/empty.conf" 41 echo '[]' > "${T}/empty.conf"
42 if version_is_at_least "7.5.20120516" "$(ghc-version)"; then
36 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" 43 echo "$(ghc-libdir)/ghc-pkg" "--global-package-db=${T}/empty.conf"
37 else 44 else
38 echo "$(ghc-libdir)/ghc-pkg.bin" 45 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
39 fi 46 fi
40} 47}
41 48
49# @FUNCTION: ghc-version
50# @DESCRIPTION:
42# returns the version of ghc 51# returns the version of ghc
43_GHC_VERSION_CACHE="" 52_GHC_VERSION_CACHE=""
44ghc-version() { 53ghc-version() {
45 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 54 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
46 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" 55 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
47 fi 56 fi
48 echo "${_GHC_VERSION_CACHE}" 57 echo "${_GHC_VERSION_CACHE}"
49} 58}
50 59
51# this function can be used to determine if ghc itself 60# @FUNCTION: ghc-bestcabalversion
52# uses the Cabal package format; it has nothing to do 61# @DESCRIPTION:
53# with the Cabal libraries ... ghc uses the Cabal package
54# format since version 6.4
55ghc-cabal() {
56 version_is_at_least "6.4" "$(ghc-version)"
57}
58
59# return the best version of the Cabal library that is available 62# return the best version of the Cabal library that is available
60ghc-bestcabalversion() { 63ghc-bestcabalversion() {
61 local cabalpackage
62 local cabalversion
63 if ghc-cabal; then
64 # We ask portage, not ghc, so that we only pick up 64 # We ask portage, not ghc, so that we only pick up
65 # portage-installed cabal versions. 65 # portage-installed cabal versions.
66 cabalpackage="$(best_version dev-haskell/cabal)" 66 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
67 cabalversion="${cabalpackage#dev-haskell/cabal-}"
68 cabalversion="${cabalversion%-r*}"
69 cabalversion="${cabalversion%_pre*}"
70 echo "Cabal-${cabalversion}" 67 echo "Cabal-${cabalversion}"
71 else
72 # older ghc's don't support package versioning
73 echo Cabal
74 fi
75} 68}
76 69
70# @FUNCTION: ghc-sanecabal
71# @DESCRIPTION:
77# check if a standalone Cabal version is available for the 72# check if a standalone Cabal version is available for the
78# currently used ghc; takes minimal version of Cabal as 73# currently used ghc; takes minimal version of Cabal as
79# an optional argument 74# an optional argument
80ghc-sanecabal() { 75ghc-sanecabal() {
81 local f 76 local f
85 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 80 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
86 done 81 done
87 return 1 82 return 1
88} 83}
89 84
85# @FUNCTION: ghc-supports-shared-libraries
86# @DESCRIPTION:
87# checks if ghc is built with support for building
88# shared libraries (aka '-dynamic' option)
89ghc-supports-shared-libraries() {
90 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
91}
92
93# @FUNCTION: ghc-extractportageversion
94# @DESCRIPTION:
95# extract the version of a portage-installed package
96ghc-extractportageversion() {
97 local pkg
98 local version
99 pkg="$(best_version $1)"
100 version="${pkg#$1-}"
101 version="${version%-r*}"
102 version="${version%_pre*}"
103 echo "${version}"
104}
105
106# @FUNCTION: ghc-libdir
107# @DESCRIPTION:
90# returns the library directory 108# returns the library directory
91_GHC_LIBDIR_CACHE="" 109_GHC_LIBDIR_CACHE=""
92ghc-libdir() { 110ghc-libdir() {
93 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 111 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
94 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 112 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
95 fi 113 fi
96 echo "${_GHC_LIBDIR_CACHE}" 114 echo "${_GHC_LIBDIR_CACHE}"
97} 115}
98 116
117# @FUNCTION: ghc-confdir
118# @DESCRIPTION:
99# returns the (Gentoo) library configuration directory 119# returns the (Gentoo) library configuration directory
100ghc-confdir() { 120ghc-confdir() {
101 echo "$(ghc-libdir)/gentoo" 121 echo "$(ghc-libdir)/gentoo"
102} 122}
103 123
124# @FUNCTION: ghc-localpkgconf
125# @DESCRIPTION:
104# returns the name of the local (package-specific) 126# returns the name of the local (package-specific)
105# package configuration file 127# package configuration file
106ghc-localpkgconf() { 128ghc-localpkgconf() {
107 echo "${PF}.conf" 129 echo "${PF}.conf"
108} 130}
109 131
132# @FUNCTION: ghc-makeghcilib
133# @DESCRIPTION:
110# make a ghci foo.o file from a libfoo.a file 134# make a ghci foo.o file from a libfoo.a file
111ghc-makeghcilib() { 135ghc-makeghcilib() {
112 local outfile 136 local outfile
113 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 137 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
114 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 138 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
115} 139}
116 140
141# @FUNCTION: ghc-package-exists
142# @DESCRIPTION:
117# tests if a ghc package exists 143# tests if a ghc package exists
118ghc-package-exists() { 144ghc-package-exists() {
119 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 145 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
120} 146}
121 147
148# @FUNCTION: ghc-setup-pkg
149# @DESCRIPTION:
122# creates a local (package-specific) package 150# creates a local (package-specific) package
123# configuration file; the arguments should be 151# configuration file; the arguments should be
124# uninstalled package description files, each 152# uninstalled package description files, each
125# containing a single package description; if 153# containing a single package description; if
126# no arguments are given, the resulting file is 154# no arguments are given, the resulting file is
127# empty 155# empty
128ghc-setup-pkg() { 156ghc-setup-pkg() {
129 local localpkgconf
130 localpkgconf="${S}/$(ghc-localpkgconf)" 157 local localpkgconf="${S}/$(ghc-localpkgconf)"
131 echo '[]' > "${localpkgconf}" 158 echo '[]' > "${localpkgconf}"
159
132 for pkg in $*; do 160 for pkg in $*; do
133 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ 161 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
134 < "${pkg}" || die "failed to register ${pkg}" 162 < "${pkg}" || die "failed to register ${pkg}"
135 done 163 done
136} 164}
137 165
166# @FUNCTION: ghc-fixlibpath
167# @DESCRIPTION:
138# fixes the library and import directories path 168# fixes the library and import directories path
139# of the package configuration file 169# of the package configuration file
140ghc-fixlibpath() { 170ghc-fixlibpath() {
141 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 171 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
142 if [[ -n "$2" ]]; then 172 if [[ -n "$2" ]]; then
143 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 173 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
144 fi 174 fi
145} 175}
146 176
177# @FUNCTION: ghc-install-pkg
178# @DESCRIPTION:
147# moves the local (package-specific) package configuration 179# moves the local (package-specific) package configuration
148# file to its final destination 180# file to its final destination
149ghc-install-pkg() { 181ghc-install-pkg() {
150 mkdir -p "${D}/$(ghc-confdir)" 182 mkdir -p "${D}/$(ghc-confdir)"
151 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 183 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
152 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 184 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
153} 185}
154 186
187# @FUNCTION: ghc-register-pkg
188# @DESCRIPTION:
155# registers all packages in the local (package-specific) 189# registers all packages in the local (package-specific)
156# package configuration file 190# package configuration file
157ghc-register-pkg() { 191ghc-register-pkg() {
158 local localpkgconf
159 localpkgconf="$(ghc-confdir)/$1" 192 local localpkgconf="$(ghc-confdir)/$1"
193
160 if [[ -f "${localpkgconf}" ]]; then 194 if [[ -f "${localpkgconf}" ]]; then
161 for pkg in $(ghc-listpkg "${localpkgconf}"); do 195 for pkg in $(ghc-listpkg "${localpkgconf}"); do
162 ebegin "Registering ${pkg} " 196 ebegin "Registering ${pkg} "
163 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ 197 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
164 | $(ghc-getghcpkg) -u --force > /dev/null 198 | $(ghc-getghcpkg) update - --force > /dev/null
165 eend $? 199 eend $?
166 done 200 done
167 fi 201 fi
168} 202}
169 203
204# @FUNCTION: ghc-reregister
205# @DESCRIPTION:
170# re-adds all available .conf files to the global 206# re-adds all available .conf files to the global
171# package conf file, to be used on a ghc reinstallation 207# package conf file, to be used on a ghc reinstallation
172ghc-reregister() { 208ghc-reregister() {
209 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
173 einfo "Re-adding packages (may cause several harmless warnings) ..." 210 einfo "Re-adding packages (may cause several harmless warnings) ..."
174 if [ -d "$(ghc-confdir)" ]; then 211 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
175 pushd "$(ghc-confdir)" > /dev/null 212 if [ -d "${CONFDIR}" ]; then
213 pushd "${CONFDIR}" > /dev/null
176 for conf in *.conf; do 214 for conf in *.conf; do
177# einfo "Processing ${conf} ..." 215 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
178 ghc-register-pkg "${conf}"
179 done 216 done
180 popd > /dev/null 217 popd > /dev/null
181 fi 218 fi
182} 219}
183 220
221# @FUNCTION: ghc-unregister-pkg
222# @DESCRIPTION:
184# unregisters a package configuration file 223# unregisters a package configuration file
185# protected are all packages that are still contained in 224# protected are all packages that are still contained in
186# another package configuration file 225# another package configuration file
187ghc-unregister-pkg() { 226ghc-unregister-pkg() {
188 local localpkgconf 227 local localpkgconf="$(ghc-confdir)/$1"
189 local i 228 local i
190 local pkg 229 local pkg
191 local protected
192 localpkgconf="$(ghc-confdir)/$1"
193
194 for i in $(ghc-confdir)/*.conf; do
195 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
196 done
197 # protected now contains the packages that cannot be unregistered yet
198 230
199 if [[ -f "${localpkgconf}" ]]; then 231 if [[ -f "${localpkgconf}" ]]; then
200 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 232 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 233 if ! ghc-package-exists "${pkg}"; then
204 :
205 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 234 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
206 else 235 else
207 ebegin "Unregistering ${pkg} " 236 ebegin "Unregistering ${pkg} "
208 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null 237 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
209 eend $? 238 eend $?
210 fi 239 fi
211 done 240 done
212 fi 241 fi
213} 242}
214 243
244# @FUNCTION: ghc-reverse
245# @DESCRIPTION:
215# help-function: reverse a list 246# help-function: reverse a list
216ghc-reverse() { 247ghc-reverse() {
217 local result 248 local result
218 local i 249 local i
219 for i in $1; do 250 for i in $1; do
220 result="${i} ${result}" 251 result="${i} ${result}"
221 done 252 done
222 echo "${result}" 253 echo "${result}"
223} 254}
224 255
256# @FUNCTION: ghc-elem
257# @DESCRIPTION:
225# help-function: element-check 258# help-function: element-check
226ghc-elem() { 259ghc-elem() {
227 local i 260 local i
228 for i in $2; do 261 for i in $2; do
229 [[ "$1" == "${i}" ]] && return 0 262 [[ "$1" == "${i}" ]] && return 0
230 done 263 done
231 return 1 264 return 1
232} 265}
233 266
267# @FUNCTION: ghc-listpkg
268# @DESCRIPTION:
234# show the packages in a package configuration file 269# show the packages in a package configuration file
235ghc-listpkg() { 270ghc-listpkg() {
236 local ghcpkgcall 271 local ghcpkgcall
237 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
238 for i in $*; do 277 for i in $*; do
239 if ghc-cabal; then
240 echo $($(ghc-getghcpkg) list -f "${i}") \ 278 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
241 | sed \ 279 | sed \
242 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 280 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
243 -e "s|/.*$||" \ 281 -e "s|/.*$||" \
244 -e "s|,| |g" -e "s|[()]||g" 282 -e "s|,| |g" -e "s|[(){}]||g"
245 else
246 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
247 | cut -f2 -d':' \
248 | sed 's:,: :g'
249 fi
250 done 283 done
251} 284}
252 285
286# @FUNCTION: ghc-package_pkg_postinst
287# @DESCRIPTION:
253# exported function: registers the package-specific package 288# exported function: registers the package-specific package
254# configuration file 289# configuration file
255ghc-package_pkg_postinst() { 290ghc-package_pkg_postinst() {
256 ghc-register-pkg "$(ghc-localpkgconf)" 291 ghc-register-pkg "$(ghc-localpkgconf)"
257} 292}
258 293
294# @FUNCTION: ghc-package_pkg_prerm
295# @DESCRIPTION:
259# exported function: unregisters the package-specific package 296# exported function: unregisters the package-specific package
260# configuration file; a package contained therein is unregistered 297# configuration file; a package contained therein is unregistered
261# 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
262# package configuration file ... 299# package configuration file ...
263ghc-package_pkg_prerm() { 300ghc-package_pkg_prerm() {

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