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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 1.35 2012/11/16 15:47:17 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# 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 '[]' > "${T}/empty.conf"
42 if version_is_at_least "7.7.20121101" "$(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" "$(ghc-version)"; then
36 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" 47 echo "$(ghc-libdir)/ghc-pkg" "--global-package-db=${T}/empty.conf"
37 else 48 else
38 echo "$(ghc-libdir)/ghc-pkg.bin" 49 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
39 fi 50 fi
40} 51}
41 52
53# @FUNCTION: ghc-version
54# @DESCRIPTION:
42# returns the version of ghc 55# returns the version of ghc
43_GHC_VERSION_CACHE="" 56_GHC_VERSION_CACHE=""
44ghc-version() { 57ghc-version() {
45 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 58 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
46 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" 59 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
47 fi 60 fi
48 echo "${_GHC_VERSION_CACHE}" 61 echo "${_GHC_VERSION_CACHE}"
49} 62}
50 63
51# this function can be used to determine if ghc itself 64# @FUNCTION: ghc-bestcabalversion
52# uses the Cabal package format; it has nothing to do 65# @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" "$(ghc-version)"
57}
58
59# return the best version of the Cabal library that is available 66# return the best version of the Cabal library that is available
60ghc-bestcabalversion() { 67ghc-bestcabalversion() {
61 local cabalpackage
62 local cabalversion
63 if ghc-cabal; then
64 # We ask portage, not ghc, so that we only pick up 68 # We ask portage, not ghc, so that we only pick up
65 # portage-installed cabal versions. 69 # portage-installed cabal versions.
66 cabalpackage="$(best_version dev-haskell/cabal)" 70 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
67 cabalversion="${cabalpackage#dev-haskell/cabal-}"
68 cabalversion="${cabalversion%-r*}"
69 cabalversion="${cabalversion%_pre*}"
70 echo "Cabal-${cabalversion}" 71 echo "Cabal-${cabalversion}"
71 else
72 # older ghc's don't support package versioning
73 echo Cabal
74 fi
75} 72}
76 73
74# @FUNCTION: ghc-sanecabal
75# @DESCRIPTION:
77# check if a standalone Cabal version is available for the 76# check if a standalone Cabal version is available for the
78# currently used ghc; takes minimal version of Cabal as 77# currently used ghc; takes minimal version of Cabal as
79# an optional argument 78# an optional argument
80ghc-sanecabal() { 79ghc-sanecabal() {
81 local f 80 local f
85 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 84 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
86 done 85 done
87 return 1 86 return 1
88} 87}
89 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 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
95}
96
97# @FUNCTION: ghc-extractportageversion
98# @DESCRIPTION:
99# extract the version of a portage-installed package
100ghc-extractportageversion() {
101 local pkg
102 local version
103 pkg="$(best_version $1)"
104 version="${pkg#$1-}"
105 version="${version%-r*}"
106 version="${version%_pre*}"
107 echo "${version}"
108}
109
110# @FUNCTION: ghc-libdir
111# @DESCRIPTION:
90# returns the library directory 112# returns the library directory
91_GHC_LIBDIR_CACHE="" 113_GHC_LIBDIR_CACHE=""
92ghc-libdir() { 114ghc-libdir() {
93 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 115 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
94 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 116 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
95 fi 117 fi
96 echo "${_GHC_LIBDIR_CACHE}" 118 echo "${_GHC_LIBDIR_CACHE}"
97} 119}
98 120
121# @FUNCTION: ghc-confdir
122# @DESCRIPTION:
99# returns the (Gentoo) library configuration directory 123# returns the (Gentoo) library configuration directory
100ghc-confdir() { 124ghc-confdir() {
101 echo "$(ghc-libdir)/gentoo" 125 echo "$(ghc-libdir)/gentoo"
102} 126}
103 127
128# @FUNCTION: ghc-localpkgconf
129# @DESCRIPTION:
104# returns the name of the local (package-specific) 130# returns the name of the local (package-specific)
105# package configuration file 131# package configuration file
106ghc-localpkgconf() { 132ghc-localpkgconf() {
107 echo "${PF}.conf" 133 echo "${PF}.conf"
108} 134}
109 135
136# @FUNCTION: ghc-makeghcilib
137# @DESCRIPTION:
110# make a ghci foo.o file from a libfoo.a file 138# make a ghci foo.o file from a libfoo.a file
111ghc-makeghcilib() { 139ghc-makeghcilib() {
112 local outfile 140 local outfile
113 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 141 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
114 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 142 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
115} 143}
116 144
145# @FUNCTION: ghc-package-exists
146# @DESCRIPTION:
117# tests if a ghc package exists 147# tests if a ghc package exists
118ghc-package-exists() { 148ghc-package-exists() {
119 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 149 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
120} 150}
121 151
152# @FUNCTION: ghc-setup-pkg
153# @DESCRIPTION:
122# creates a local (package-specific) package 154# creates a local (package-specific) package
123# configuration file; the arguments should be 155# configuration file; the arguments should be
124# uninstalled package description files, each 156# uninstalled package description files, each
125# containing a single package description; if 157# containing a single package description; if
126# no arguments are given, the resulting file is 158# no arguments are given, the resulting file is
127# empty 159# empty
128ghc-setup-pkg() { 160ghc-setup-pkg() {
129 local localpkgconf
130 localpkgconf="${S}/$(ghc-localpkgconf)" 161 local localpkgconf="${S}/$(ghc-localpkgconf)"
131 echo '[]' > "${localpkgconf}" 162 echo '[]' > "${localpkgconf}"
163
132 for pkg in $*; do 164 for pkg in $*; do
133 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ 165 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
134 < "${pkg}" || die "failed to register ${pkg}" 166 < "${pkg}" || die "failed to register ${pkg}"
135 done 167 done
136} 168}
137 169
170# @FUNCTION: ghc-fixlibpath
171# @DESCRIPTION:
138# fixes the library and import directories path 172# fixes the library and import directories path
139# of the package configuration file 173# of the package configuration file
140ghc-fixlibpath() { 174ghc-fixlibpath() {
141 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 175 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
142 if [[ -n "$2" ]]; then 176 if [[ -n "$2" ]]; then
143 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 177 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
144 fi 178 fi
145} 179}
146 180
181# @FUNCTION: ghc-install-pkg
182# @DESCRIPTION:
147# moves the local (package-specific) package configuration 183# moves the local (package-specific) package configuration
148# file to its final destination 184# file to its final destination
149ghc-install-pkg() { 185ghc-install-pkg() {
150 mkdir -p "${D}/$(ghc-confdir)" 186 mkdir -p "${D}/$(ghc-confdir)"
151 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 187 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
152 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 188 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
153} 189}
154 190
191# @FUNCTION: ghc-register-pkg
192# @DESCRIPTION:
155# registers all packages in the local (package-specific) 193# registers all packages in the local (package-specific)
156# package configuration file 194# package configuration file
157ghc-register-pkg() { 195ghc-register-pkg() {
158 local localpkgconf
159 localpkgconf="$(ghc-confdir)/$1" 196 local localpkgconf="$(ghc-confdir)/$1"
197
160 if [[ -f "${localpkgconf}" ]]; then 198 if [[ -f "${localpkgconf}" ]]; then
161 for pkg in $(ghc-listpkg "${localpkgconf}"); do 199 for pkg in $(ghc-listpkg "${localpkgconf}"); do
162 ebegin "Registering ${pkg} " 200 ebegin "Registering ${pkg} "
163 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ 201 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
164 | $(ghc-getghcpkg) -u --force > /dev/null 202 | $(ghc-getghcpkg) update - --force > /dev/null
165 eend $? 203 eend $?
166 done 204 done
167 fi 205 fi
168} 206}
169 207
208# @FUNCTION: ghc-reregister
209# @DESCRIPTION:
170# re-adds all available .conf files to the global 210# re-adds all available .conf files to the global
171# package conf file, to be used on a ghc reinstallation 211# package conf file, to be used on a ghc reinstallation
172ghc-reregister() { 212ghc-reregister() {
213 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
173 einfo "Re-adding packages (may cause several harmless warnings) ..." 214 einfo "Re-adding packages (may cause several harmless warnings) ..."
174 if [ -d "$(ghc-confdir)" ]; then 215 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
175 pushd "$(ghc-confdir)" > /dev/null 216 if [ -d "${CONFDIR}" ]; then
217 pushd "${CONFDIR}" > /dev/null
176 for conf in *.conf; do 218 for conf in *.conf; do
177# einfo "Processing ${conf} ..." 219 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
178 ghc-register-pkg "${conf}"
179 done 220 done
180 popd > /dev/null 221 popd > /dev/null
181 fi 222 fi
182} 223}
183 224
225# @FUNCTION: ghc-unregister-pkg
226# @DESCRIPTION:
184# unregisters a package configuration file 227# unregisters a package configuration file
185# protected are all packages that are still contained in 228# protected are all packages that are still contained in
186# another package configuration file 229# another package configuration file
187ghc-unregister-pkg() { 230ghc-unregister-pkg() {
188 local localpkgconf 231 local localpkgconf="$(ghc-confdir)/$1"
189 local i 232 local i
190 local pkg 233 local pkg
191 local protected
192 localpkgconf="$(ghc-confdir)/$1"
193
194 for i in $(ghc-confdir)/*.conf; do
195 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
196 done
197 # protected now contains the packages that cannot be unregistered yet
198 234
199 if [[ -f "${localpkgconf}" ]]; then 235 if [[ -f "${localpkgconf}" ]]; then
200 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 236 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 237 if ! ghc-package-exists "${pkg}"; then
204 :
205 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 238 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
206 else 239 else
207 ebegin "Unregistering ${pkg} " 240 ebegin "Unregistering ${pkg} "
208 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null 241 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
209 eend $? 242 eend $?
210 fi 243 fi
211 done 244 done
212 fi 245 fi
213} 246}
214 247
248# @FUNCTION: ghc-reverse
249# @DESCRIPTION:
215# help-function: reverse a list 250# help-function: reverse a list
216ghc-reverse() { 251ghc-reverse() {
217 local result 252 local result
218 local i 253 local i
219 for i in $1; do 254 for i in $1; do
220 result="${i} ${result}" 255 result="${i} ${result}"
221 done 256 done
222 echo "${result}" 257 echo "${result}"
223} 258}
224 259
260# @FUNCTION: ghc-elem
261# @DESCRIPTION:
225# help-function: element-check 262# help-function: element-check
226ghc-elem() { 263ghc-elem() {
227 local i 264 local i
228 for i in $2; do 265 for i in $2; do
229 [[ "$1" == "${i}" ]] && return 0 266 [[ "$1" == "${i}" ]] && return 0
230 done 267 done
231 return 1 268 return 1
232} 269}
233 270
271# @FUNCTION: ghc-listpkg
272# @DESCRIPTION:
234# show the packages in a package configuration file 273# show the packages in a package configuration file
235ghc-listpkg() { 274ghc-listpkg() {
236 local ghcpkgcall 275 local ghcpkgcall
237 local i 276 local i
277 local extra_flags
278 if version_is_at_least '6.12.3' "$(ghc-version)"; then
279 extra_flags="${extra_flags} -v0"
280 fi
238 for i in $*; do 281 for i in $*; do
239 if ghc-cabal; then
240 echo $($(ghc-getghcpkg) list -f "${i}") \ 282 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
241 | sed \ 283 | sed \
242 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 284 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
243 -e "s|/.*$||" \ 285 -e "s|/.*$||" \
244 -e "s|,| |g" -e "s|[()]||g" 286 -e "s|,| |g" -e "s|[(){}]||g"
245 else
246 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
247 | cut -f2 -d':' \
248 | sed 's:,: :g'
249 fi
250 done 287 done
251} 288}
252 289
290# @FUNCTION: ghc-package_pkg_postinst
291# @DESCRIPTION:
253# exported function: registers the package-specific package 292# exported function: registers the package-specific package
254# configuration file 293# configuration file
255ghc-package_pkg_postinst() { 294ghc-package_pkg_postinst() {
256 ghc-register-pkg "$(ghc-localpkgconf)" 295 ghc-register-pkg "$(ghc-localpkgconf)"
257} 296}
258 297
298# @FUNCTION: ghc-package_pkg_prerm
299# @DESCRIPTION:
259# exported function: unregisters the package-specific package 300# exported function: unregisters the package-specific package
260# configuration file; a package contained therein is unregistered 301# configuration file; a package contained therein is unregistered
261# only if it the same package is not also contained in another 302# only if it the same package is not also contained in another
262# package configuration file ... 303# package configuration file ...
263ghc-package_pkg_prerm() { 304ghc-package_pkg_prerm() {

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