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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 1.16 2006/03/01 12:58:01 dcoutts Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.33 2012/04/09 18:08:45 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 '[]' > "${T}/empty.conf"
35 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" 42 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
36 else
37 echo "$(ghc-libdir)/ghc-pkg.bin"
38 fi
39} 43}
40 44
45# @FUNCTION: ghc-version
46# @DESCRIPTION:
41# returns the version of ghc 47# returns the version of ghc
42_GHC_VERSION_CACHE="" 48_GHC_VERSION_CACHE=""
43ghc-version() { 49ghc-version() {
44 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 50 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
45 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" 51 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
46 fi 52 fi
47 echo "${_GHC_VERSION_CACHE}" 53 echo "${_GHC_VERSION_CACHE}"
48} 54}
49 55
50# this function can be used to determine if ghc itself 56# @FUNCTION: ghc-bestcabalversion
51# uses the Cabal package format; it has nothing to do 57# @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" "$(ghc-version)"
56}
57
58# return the best version of the Cabal library that is available 58# return the best version of the Cabal library that is available
59ghc-bestcabalversion() { 59ghc-bestcabalversion() {
60 local cabalpackage 60 # We ask portage, not ghc, so that we only pick up
61 local cabalversion 61 # portage-installed cabal versions.
62 if ghc-cabal; then 62 local cabalversion="$(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-${cabalversion}" 63 echo "Cabal-${cabalversion}"
75 else
76 # older ghc's don't support package versioning
77 echo Cabal
78 fi
79} 64}
80 65
66# @FUNCTION: ghc-sanecabal
67# @DESCRIPTION:
81# check if a standalone Cabal version is available for the 68# check if a standalone Cabal version is available for the
82# currently used ghc; takes minimal version of Cabal as 69# currently used ghc; takes minimal version of Cabal as
83# an optional argument 70# an optional argument
84ghc-sanecabal() { 71ghc-sanecabal() {
85 local f 72 local f
89 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 76 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
90 done 77 done
91 return 1 78 return 1
92} 79}
93 80
81# @FUNCTION: ghc-supports-shared-libraries
82# @DESCRIPTION:
83# checks if ghc is built with support for building
84# shared libraries (aka '-dynamic' option)
85ghc-supports-shared-libraries() {
86 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
87}
88
89# @FUNCTION: ghc-extractportageversion
90# @DESCRIPTION:
91# extract the version of a portage-installed package
92ghc-extractportageversion() {
93 local pkg
94 local version
95 pkg="$(best_version $1)"
96 version="${pkg#$1-}"
97 version="${version%-r*}"
98 version="${version%_pre*}"
99 echo "${version}"
100}
101
102# @FUNCTION: ghc-libdir
103# @DESCRIPTION:
94# returns the library directory 104# returns the library directory
95_GHC_LIBDIR_CACHE="" 105_GHC_LIBDIR_CACHE=""
96ghc-libdir() { 106ghc-libdir() {
97 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 107 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
98 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 108 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
99 fi 109 fi
100 echo "${_GHC_LIBDIR_CACHE}" 110 echo "${_GHC_LIBDIR_CACHE}"
101} 111}
102 112
113# @FUNCTION: ghc-confdir
114# @DESCRIPTION:
103# returns the (Gentoo) library configuration directory 115# returns the (Gentoo) library configuration directory
104ghc-confdir() { 116ghc-confdir() {
105 echo "$(ghc-libdir)/gentoo" 117 echo "$(ghc-libdir)/gentoo"
106} 118}
107 119
120# @FUNCTION: ghc-localpkgconf
121# @DESCRIPTION:
108# returns the name of the local (package-specific) 122# returns the name of the local (package-specific)
109# package configuration file 123# package configuration file
110ghc-localpkgconf() { 124ghc-localpkgconf() {
111 echo "${PF}.conf" 125 echo "${PF}.conf"
112} 126}
113 127
128# @FUNCTION: ghc-makeghcilib
129# @DESCRIPTION:
114# make a ghci foo.o file from a libfoo.a file 130# make a ghci foo.o file from a libfoo.a file
115ghc-makeghcilib() { 131ghc-makeghcilib() {
116 local outfile 132 local outfile
117 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 133 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
118 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 134 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
119} 135}
120 136
137# @FUNCTION: ghc-package-exists
138# @DESCRIPTION:
121# tests if a ghc package exists 139# tests if a ghc package exists
122ghc-package-exists() { 140ghc-package-exists() {
123 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 141 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
124} 142}
125 143
144# @FUNCTION: ghc-setup-pkg
145# @DESCRIPTION:
126# creates a local (package-specific) package 146# creates a local (package-specific) package
127# configuration file; the arguments should be 147# configuration file; the arguments should be
128# uninstalled package description files, each 148# uninstalled package description files, each
129# containing a single package description; if 149# containing a single package description; if
130# no arguments are given, the resulting file is 150# no arguments are given, the resulting file is
131# empty 151# empty
132ghc-setup-pkg() { 152ghc-setup-pkg() {
133 local localpkgconf
134 localpkgconf="${S}/$(ghc-localpkgconf)" 153 local localpkgconf="${S}/$(ghc-localpkgconf)"
135 echo '[]' > "${localpkgconf}" 154 echo '[]' > "${localpkgconf}"
155
136 for pkg in $*; do 156 for pkg in $*; do
137 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ 157 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
138 < "${pkg}" || die "failed to register ${pkg}" 158 < "${pkg}" || die "failed to register ${pkg}"
139 done 159 done
140} 160}
141 161
162# @FUNCTION: ghc-fixlibpath
163# @DESCRIPTION:
142# fixes the library and import directories path 164# fixes the library and import directories path
143# of the package configuration file 165# of the package configuration file
144ghc-fixlibpath() { 166ghc-fixlibpath() {
145 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 167 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
146 if [[ -n "$2" ]]; then 168 if [[ -n "$2" ]]; then
147 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 169 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
148 fi 170 fi
149} 171}
150 172
173# @FUNCTION: ghc-install-pkg
174# @DESCRIPTION:
151# moves the local (package-specific) package configuration 175# moves the local (package-specific) package configuration
152# file to its final destination 176# file to its final destination
153ghc-install-pkg() { 177ghc-install-pkg() {
154 mkdir -p "${D}/$(ghc-confdir)" 178 mkdir -p "${D}/$(ghc-confdir)"
155 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 179 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
156 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 180 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
157} 181}
158 182
183# @FUNCTION: ghc-register-pkg
184# @DESCRIPTION:
159# registers all packages in the local (package-specific) 185# registers all packages in the local (package-specific)
160# package configuration file 186# package configuration file
161ghc-register-pkg() { 187ghc-register-pkg() {
162 local localpkgconf
163 localpkgconf="$(ghc-confdir)/$1" 188 local localpkgconf="$(ghc-confdir)/$1"
189
164 if [[ -f "${localpkgconf}" ]]; then 190 if [[ -f "${localpkgconf}" ]]; then
165 for pkg in $(ghc-listpkg "${localpkgconf}"); do 191 for pkg in $(ghc-listpkg "${localpkgconf}"); do
166 ebegin "Registering ${pkg} " 192 ebegin "Registering ${pkg} "
167 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ 193 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
168 | $(ghc-getghcpkg) -u --force > /dev/null 194 | $(ghc-getghcpkg) update - --force > /dev/null
169 eend $? 195 eend $?
170 done 196 done
171 fi 197 fi
172} 198}
173 199
200# @FUNCTION: ghc-reregister
201# @DESCRIPTION:
174# re-adds all available .conf files to the global 202# re-adds all available .conf files to the global
175# package conf file, to be used on a ghc reinstallation 203# package conf file, to be used on a ghc reinstallation
176ghc-reregister() { 204ghc-reregister() {
205 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
177 einfo "Re-adding packages (may cause several harmless warnings) ..." 206 einfo "Re-adding packages (may cause several harmless warnings) ..."
178 if [ -d "$(ghc-confdir)" ]; then 207 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
179 pushd "$(ghc-confdir)" > /dev/null 208 if [ -d "${CONFDIR}" ]; then
209 pushd "${CONFDIR}" > /dev/null
180 for conf in *.conf; do 210 for conf in *.conf; do
181# einfo "Processing ${conf} ..." 211 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
182 ghc-register-pkg "${conf}"
183 done 212 done
184 popd > /dev/null 213 popd > /dev/null
185 fi 214 fi
186} 215}
187 216
217# @FUNCTION: ghc-unregister-pkg
218# @DESCRIPTION:
188# unregisters a package configuration file 219# unregisters a package configuration file
189# protected are all packages that are still contained in 220# protected are all packages that are still contained in
190# another package configuration file 221# another package configuration file
191ghc-unregister-pkg() { 222ghc-unregister-pkg() {
192 local localpkgconf 223 local localpkgconf="$(ghc-confdir)/$1"
193 local i 224 local i
194 local pkg 225 local pkg
195 local protected
196 localpkgconf="$(ghc-confdir)/$1"
197
198 for i in $(ghc-confdir)/*.conf; do
199 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
200 done
201 # protected now contains the packages that cannot be unregistered yet
202 226
203 if [[ -f "${localpkgconf}" ]]; then 227 if [[ -f "${localpkgconf}" ]]; then
204 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 228 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 229 if ! ghc-package-exists "${pkg}"; then
208 :
209 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 230 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
210 else 231 else
211 ebegin "Unregistering ${pkg} " 232 ebegin "Unregistering ${pkg} "
212 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null 233 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
213 eend $? 234 eend $?
214 fi 235 fi
215 done 236 done
216 fi 237 fi
217} 238}
218 239
240# @FUNCTION: ghc-reverse
241# @DESCRIPTION:
219# help-function: reverse a list 242# help-function: reverse a list
220ghc-reverse() { 243ghc-reverse() {
221 local result 244 local result
222 local i 245 local i
223 for i in $1; do 246 for i in $1; do
224 result="${i} ${result}" 247 result="${i} ${result}"
225 done 248 done
226 echo "${result}" 249 echo "${result}"
227} 250}
228 251
252# @FUNCTION: ghc-elem
253# @DESCRIPTION:
229# help-function: element-check 254# help-function: element-check
230ghc-elem() { 255ghc-elem() {
231 local i 256 local i
232 for i in $2; do 257 for i in $2; do
233 [[ "$1" == "${i}" ]] && return 0 258 [[ "$1" == "${i}" ]] && return 0
234 done 259 done
235 return 1 260 return 1
236} 261}
237 262
263# @FUNCTION: ghc-listpkg
264# @DESCRIPTION:
238# show the packages in a package configuration file 265# show the packages in a package configuration file
239ghc-listpkg() { 266ghc-listpkg() {
240 local ghcpkgcall 267 local ghcpkgcall
241 local i 268 local i
269 local extra_flags
270 if version_is_at_least '6.12.3' "$(ghc-version)"; then
271 extra_flags="${extra_flags} -v0"
272 fi
242 for i in $*; do 273 for i in $*; do
243 if ghc-cabal; then
244 echo $($(ghc-getghcpkg) list -f "${i}") \ 274 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
245 | sed \ 275 | sed \
246 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 276 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
247 -e "s|/.*$||" \ 277 -e "s|/.*$||" \
248 -e "s|,| |g" -e "s|[()]||g" 278 -e "s|,| |g" -e "s|[(){}]||g"
249 else
250 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
251 | cut -f2 -d':' \
252 | sed 's:,: :g'
253 fi
254 done 279 done
255} 280}
256 281
282# @FUNCTION: ghc-package_pkg_postinst
283# @DESCRIPTION:
257# exported function: registers the package-specific package 284# exported function: registers the package-specific package
258# configuration file 285# configuration file
259ghc-package_pkg_postinst() { 286ghc-package_pkg_postinst() {
260 ghc-register-pkg "$(ghc-localpkgconf)" 287 ghc-register-pkg "$(ghc-localpkgconf)"
261} 288}
262 289
290# @FUNCTION: ghc-package_pkg_prerm
291# @DESCRIPTION:
263# exported function: unregisters the package-specific package 292# exported function: unregisters the package-specific package
264# configuration file; a package contained therein is unregistered 293# configuration file; a package contained therein is unregistered
265# only if it the same package is not also contained in another 294# only if it the same package is not also contained in another
266# package configuration file ... 295# package configuration file ...
267ghc-package_pkg_prerm() { 296ghc-package_pkg_prerm() {

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