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1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2013 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 1.1.1.1 2005/11/30 09:59:38 chriswhite Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.37 2013/05/11 12:46:32 slyfox 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#
7# This eclass helps with the Glasgow Haskell Compiler's package 10# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
8# configuration utility. 11# @DESCRIPTION:
12# Helper eclass to handle ghc installation/upgrade/deinstallation process.
9 13
10inherit versionator 14inherit versionator
11 15
12# promote /opt/ghc/bin to a better position in the search path 16# @FUNCTION: ghc-getghc
13PATH="/usr/bin:/opt/ghc/bin:${PATH}" 17# @DESCRIPTION:
14
15# for later configuration using environment variables/
16# returns the name of the ghc executable 18# returns the name of the ghc executable
17ghc-getghc() { 19ghc-getghc() {
18 echo "ghc" 20 type -P ghc
19} 21}
20 22
23# @FUNCTION: ghc-getghcpkg
24# @DESCRIPTION:
21# returns the name of the ghc-pkg executable 25# Internal function determines returns the name of the ghc-pkg executable
22ghc-getghcpkg() { 26ghc-getghcpkg() {
23 echo "ghc-pkg" 27 type -P ghc-pkg
24} 28}
25 29
30# @FUNCTION: ghc-getghcpkgbin
31# @DESCRIPTION:
26# returns the name of the ghc-pkg binary (ghc-pkg 32# returns the name of the ghc-pkg binary (ghc-pkg
27# itself usually is a shell script, and we have to 33# itself usually is a shell script, and we have to
28# bypass the script under certain circumstances); 34# bypass the script under certain circumstances);
29# for Cabal, we add an empty global package config file, 35# for Cabal, we add an empty global package config file,
30# because for some reason the global package file 36# because for some reason the global package file
31# must be specified 37# must be specified
32ghc-getghcpkgbin() { 38ghc-getghcpkgbin() {
33 if ghc-cabal; then 39 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
40 # the wrapper script with the static flags
34 echo '[]' > "${T}/empty.conf" 41 echo '[]' > "${T}/empty.conf"
42 if version_is_at_least "7.7.20121101" "$(ghc-version)"; then
43 # was moved to bin/ subtree by:
44 # http://www.haskell.org/pipermail/cvs-ghc/2012-September/076546.html
45 echo "$(ghc-libdir)/bin/ghc-pkg" "--global-package-db=${T}/empty.conf"
46 elif version_is_at_least "7.5.20120516" "$(ghc-version)"; then
35 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" 47 echo "$(ghc-libdir)/ghc-pkg" "--global-package-db=${T}/empty.conf"
36 else 48 else
37 echo "$(ghc-libdir)/ghc-pkg.bin" 49 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
38 fi 50 fi
39} 51}
40 52
53# @FUNCTION: ghc-version
54# @DESCRIPTION:
41# returns the version of ghc 55# returns the version of ghc
42_GHC_VERSION_CACHE="" 56_GHC_VERSION_CACHE=""
43ghc-version() { 57ghc-version() {
44 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 58 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
45 _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')" 59 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
46 fi 60 fi
47 echo "${_GHC_VERSION_CACHE}" 61 echo "${_GHC_VERSION_CACHE}"
48} 62}
49 63
50# this function can be used to determine if ghc itself 64# @FUNCTION: ghc-bestcabalversion
51# uses the Cabal package format; it has nothing to do 65# @DESCRIPTION:
52# with the Cabal libraries ... ghc uses the Cabal package
53# format since version 6.4
54ghc-cabal() {
55 version_is_at_least "6.4" "$(ghc-version)"
56}
57
58# return the best version of the Cabal library that is available 66# return the best version of the Cabal library that is available
59ghc-bestcabalversion() { 67ghc-bestcabalversion() {
60 local cabalpackage 68 # We ask portage, not ghc, so that we only pick up
61 local cabalversion 69 # portage-installed cabal versions.
62 if ghc-cabal; then 70 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
63 # Try if ghc-pkg can determine the latest version.
64 # If not, use portage.
65 cabalpackage="$($(ghc-getghcpkg) latest Cabal 2> /dev/null)"
66 if [[ $? -eq 0 ]]; then
67 cabalversion="${cabalpackage#Cabal-}"
68 else
69 cabalpackage="$(best_version cabal)"
70 cabalversion="${cabalpackage#dev-haskell/cabal-}"
71 cabalversion="${cabalversion%-r*}"
72 cabalversion="${cabalversion%_pre*}"
73 fi
74 echo "Cabal-${cabalversion}" 71 echo "Cabal-${cabalversion}"
75 else
76 # older ghc's don't support package versioning
77 echo Cabal
78 fi
79} 72}
80 73
74# @FUNCTION: ghc-sanecabal
75# @DESCRIPTION:
81# check if a standalone Cabal version is available for the 76# check if a standalone Cabal version is available for the
82# currently used ghc; takes minimal version of Cabal as 77# currently used ghc; takes minimal version of Cabal as
83# an optional argument 78# an optional argument
84ghc-sanecabal() { 79ghc-sanecabal() {
85 local f 80 local f
89 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 84 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
90 done 85 done
91 return 1 86 return 1
92} 87}
93 88
89# @FUNCTION: ghc-supports-shared-libraries
90# @DESCRIPTION:
91# checks if ghc is built with support for building
92# shared libraries (aka '-dynamic' option)
93ghc-supports-shared-libraries() {
94 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
95}
96
97# @FUNCTION: ghc-supports-threaded-runtime
98# @DESCRIPTION:
99# checks if ghc is built with support for threaded
100# runtime (aka '-threaded' option)
101ghc-supports-threaded-runtime() {
102 $(ghc-getghc) --info | grep "RTS ways" | grep -q "thr"
103}
104
105# @FUNCTION: ghc-supports-smp
106# @DESCRIPTION:
107# checks if ghc is built with support for multiple cores runtime
108ghc-supports-smp() {
109 $(ghc-getghc) --info | grep "Support SMP" | grep -q "YES"
110}
111
112# @FUNCTION: ghc-supports-dynamic-by-default
113# @DESCRIPTION:
114# checks if ghc link against shared haskell libraries by default
115ghc-supports-dynamic-by-default() {
116 $(ghc-getghc) --info | grep "Dynamic by default" | grep -q "YES"
117}
118
119
120# @FUNCTION: ghc-extractportageversion
121# @DESCRIPTION:
122# extract the version of a portage-installed package
123ghc-extractportageversion() {
124 local pkg
125 local version
126 pkg="$(best_version $1)"
127 version="${pkg#$1-}"
128 version="${version%-r*}"
129 version="${version%_pre*}"
130 echo "${version}"
131}
132
133# @FUNCTION: ghc-libdir
134# @DESCRIPTION:
94# returns the library directory 135# returns the library directory
95_GHC_LIBDIR_CACHE="" 136_GHC_LIBDIR_CACHE=""
96ghc-libdir() { 137ghc-libdir() {
97 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 138 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
98 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 139 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
99 fi 140 fi
100 echo "${_GHC_LIBDIR_CACHE}" 141 echo "${_GHC_LIBDIR_CACHE}"
101} 142}
102 143
144# @FUNCTION: ghc-confdir
145# @DESCRIPTION:
103# returns the (Gentoo) library configuration directory 146# returns the (Gentoo) library configuration directory
104ghc-confdir() { 147ghc-confdir() {
105 echo "$(ghc-libdir)/gentoo" 148 echo "$(ghc-libdir)/gentoo"
106} 149}
107 150
151# @FUNCTION: ghc-localpkgconf
152# @DESCRIPTION:
108# returns the name of the local (package-specific) 153# returns the name of the local (package-specific)
109# package configuration file 154# package configuration file
110ghc-localpkgconf() { 155ghc-localpkgconf() {
111 echo "${PF}.conf" 156 echo "${PF}.conf"
112} 157}
113 158
159# @FUNCTION: ghc-makeghcilib
160# @DESCRIPTION:
114# make a ghci foo.o file from a libfoo.a file 161# make a ghci foo.o file from a libfoo.a file
115ghc-makeghcilib() { 162ghc-makeghcilib() {
116 local outfile 163 local outfile
117 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 164 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
118 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 165 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
119} 166}
120 167
168# @FUNCTION: ghc-package-exists
169# @DESCRIPTION:
121# tests if a ghc package exists 170# tests if a ghc package exists
122ghc-package-exists() { 171ghc-package-exists() {
123 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 172 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
124} 173}
125 174
175# @FUNCTION: ghc-setup-pkg
176# @DESCRIPTION:
126# creates a local (package-specific) package 177# creates a local (package-specific) package
127# configuration file; the arguments should be 178# configuration file; the arguments should be
128# uninstalled package description files, each 179# uninstalled package description files, each
129# containing a single package description; if 180# containing a single package description; if
130# no arguments are given, the resulting file is 181# no arguments are given, the resulting file is
131# empty 182# empty
132ghc-setup-pkg() { 183ghc-setup-pkg() {
133 local localpkgconf
134 localpkgconf="${S}/$(ghc-localpkgconf)" 184 local localpkgconf="${S}/$(ghc-localpkgconf)"
135 echo '[]' > "${localpkgconf}" 185 echo '[]' > "${localpkgconf}"
186
136 for pkg in $*; do 187 for pkg in $*; do
137 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ 188 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
138 < "${pkg}" || die "failed to register ${pkg}" 189 < "${pkg}" || die "failed to register ${pkg}"
139 done 190 done
140} 191}
141 192
193# @FUNCTION: ghc-fixlibpath
194# @DESCRIPTION:
142# fixes the library and import directories path 195# fixes the library and import directories path
143# of the package configuration file 196# of the package configuration file
144ghc-fixlibpath() { 197ghc-fixlibpath() {
145 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 198 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
146 if [[ -n "$2" ]]; then 199 if [[ -n "$2" ]]; then
147 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 200 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
148 fi 201 fi
149} 202}
150 203
204# @FUNCTION: ghc-install-pkg
205# @DESCRIPTION:
151# moves the local (package-specific) package configuration 206# moves the local (package-specific) package configuration
152# file to its final destination 207# file to its final destination
153ghc-install-pkg() { 208ghc-install-pkg() {
154 mkdir -p "${D}/$(ghc-confdir)" 209 mkdir -p "${D}/$(ghc-confdir)"
155 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 210 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
156 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 211 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
157} 212}
158 213
214# @FUNCTION: ghc-register-pkg
215# @DESCRIPTION:
159# registers all packages in the local (package-specific) 216# registers all packages in the local (package-specific)
160# package configuration file 217# package configuration file
161ghc-register-pkg() { 218ghc-register-pkg() {
162 local localpkgconf
163 localpkgconf="$(ghc-confdir)/$1" 219 local localpkgconf="$(ghc-confdir)/$1"
220
164 if [[ -f "${localpkgconf}" ]]; then 221 if [[ -f "${localpkgconf}" ]]; then
165 for pkg in $(ghc-listpkg "${localpkgconf}"); do 222 for pkg in $(ghc-listpkg "${localpkgconf}"); do
166 ebegin "Registering ${pkg} " 223 ebegin "Registering ${pkg} "
167 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ 224 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
168 | $(ghc-getghcpkg) -u --force > /dev/null 225 | $(ghc-getghcpkg) update - --force > /dev/null
169 eend $? 226 eend $?
170 done 227 done
171 fi 228 fi
172} 229}
173 230
231# @FUNCTION: ghc-reregister
232# @DESCRIPTION:
174# re-adds all available .conf files to the global 233# re-adds all available .conf files to the global
175# package conf file, to be used on a ghc reinstallation 234# package conf file, to be used on a ghc reinstallation
176ghc-reregister() { 235ghc-reregister() {
236 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
177 einfo "Re-adding packages (may cause several harmless warnings) ..." 237 einfo "Re-adding packages (may cause several harmless warnings) ..."
178 if [ -d "$(ghc-confdir)" ]; then 238 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
179 pushd "$(ghc-confdir)" > /dev/null 239 if [ -d "${CONFDIR}" ]; then
240 pushd "${CONFDIR}" > /dev/null
180 for conf in *.conf; do 241 for conf in *.conf; do
181# einfo "Processing ${conf} ..." 242 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
182 ghc-register-pkg "${conf}"
183 done 243 done
184 popd > /dev/null 244 popd > /dev/null
185 fi 245 fi
186} 246}
187 247
248# @FUNCTION: ghc-unregister-pkg
249# @DESCRIPTION:
188# unregisters a package configuration file 250# unregisters a package configuration file
189# protected are all packages that are still contained in 251# protected are all packages that are still contained in
190# another package configuration file 252# another package configuration file
191ghc-unregister-pkg() { 253ghc-unregister-pkg() {
192 local localpkgconf 254 local localpkgconf="$(ghc-confdir)/$1"
193 local i 255 local i
194 local pkg 256 local pkg
195 local protected
196 localpkgconf="$(ghc-confdir)/$1"
197
198 for i in $(ghc-confdir)/*.conf; do
199 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
200 done
201 # protected now contains the packages that cannot be unregistered yet
202 257
203 if [[ -f "${localpkgconf}" ]]; then 258 if [[ -f "${localpkgconf}" ]]; then
204 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 259 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
205 if $(ghc-elem "${pkg}" "${protected}"); then
206 einfo "Package ${pkg} is protected."
207 elif ! ghc-package-exists "${pkg}"; then 260 if ! ghc-package-exists "${pkg}"; then
208 :
209 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 261 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
210 else 262 else
211 ebegin "Unregistering ${pkg} " 263 ebegin "Unregistering ${pkg} "
212 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null 264 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
213 eend $? 265 eend $?
214 fi 266 fi
215 done 267 done
216 fi 268 fi
217} 269}
218 270
271# @FUNCTION: ghc-reverse
272# @DESCRIPTION:
219# help-function: reverse a list 273# help-function: reverse a list
220ghc-reverse() { 274ghc-reverse() {
221 local result 275 local result
222 local i 276 local i
223 for i in $1; do 277 for i in $1; do
224 result="${i} ${result}" 278 result="${i} ${result}"
225 done 279 done
226 echo "${result}" 280 echo "${result}"
227} 281}
228 282
283# @FUNCTION: ghc-elem
284# @DESCRIPTION:
229# help-function: element-check 285# help-function: element-check
230ghc-elem() { 286ghc-elem() {
231 local i 287 local i
232 for i in $2; do 288 for i in $2; do
233 [[ "$1" == "${i}" ]] && return 0 289 [[ "$1" == "${i}" ]] && return 0
234 done 290 done
235 return 1 291 return 1
236} 292}
237 293
294# @FUNCTION: ghc-listpkg
295# @DESCRIPTION:
238# show the packages in a package configuration file 296# show the packages in a package configuration file
239ghc-listpkg() { 297ghc-listpkg() {
240 local ghcpkgcall 298 local ghcpkgcall
241 local i 299 local i
300 local extra_flags
301 if version_is_at_least '6.12.3' "$(ghc-version)"; then
302 extra_flags="${extra_flags} -v0"
303 fi
242 for i in $*; do 304 for i in $*; do
243 if ghc-cabal; then
244 echo $($(ghc-getghcpkg) list -f "${i}") \ 305 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
245 | sed \ 306 | sed \
246 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 307 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
247 -e "s|/.*$||" \ 308 -e "s|/.*$||" \
248 -e "s|,| |g" -e "s|[()]||g" 309 -e "s|,| |g" -e "s|[(){}]||g"
249 else
250 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
251 | cut -f2 -d':' \
252 | sed 's:,: :g'
253 fi
254 done 310 done
255} 311}
256 312
313# @FUNCTION: ghc-package_pkg_postinst
314# @DESCRIPTION:
257# exported function: registers the package-specific package 315# exported function: registers the package-specific package
258# configuration file 316# configuration file
259ghc-package_pkg_postinst() { 317ghc-package_pkg_postinst() {
260 ghc-register-pkg "$(ghc-localpkgconf)" 318 ghc-register-pkg "$(ghc-localpkgconf)"
261} 319}
262 320
321# @FUNCTION: ghc-package_pkg_prerm
322# @DESCRIPTION:
263# exported function: unregisters the package-specific package 323# exported function: unregisters the package-specific package
264# configuration file; a package contained therein is unregistered 324# configuration file; a package contained therein is unregistered
265# only if it the same package is not also contained in another 325# only if it the same package is not also contained in another
266# package configuration file ... 326# package configuration file ...
267ghc-package_pkg_prerm() { 327ghc-package_pkg_prerm() {

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