/[gentoo-x86]/eclass/ghc-package.eclass
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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 1.10 2005/05/08 14:49:25 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
12ECLASS="ghc-package" 16# @FUNCTION: ghc-getghc
13INHERITED="${INHERITED} ${ECLASS}" 17# @DESCRIPTION:
14
15# promote /opt/ghc/bin to a better position in the search path
16PATH="/usr/bin:/opt/ghc/bin:${PATH}"
17
18# for later configuration using environment variables/
19# returns the name of the ghc executable 18# returns the name of the ghc executable
20ghc-getghc() { 19ghc-getghc() {
21 echo "ghc" 20 type -P ghc
22} 21}
23 22
23# @FUNCTION: ghc-getghcpkg
24# @DESCRIPTION:
24# returns the name of the ghc-pkg executable 25# Internal function determines returns the name of the ghc-pkg executable
25ghc-getghcpkg() { 26ghc-getghcpkg() {
26 echo "ghc-pkg" 27 type -P ghc-pkg
27} 28}
28 29
30# @FUNCTION: ghc-getghcpkgbin
31# @DESCRIPTION:
29# returns the name of the ghc-pkg binary (ghc-pkg 32# returns the name of the ghc-pkg binary (ghc-pkg
30# itself usually is a shell script, and we have to 33# itself usually is a shell script, and we have to
31# bypass the script under certain circumstances); 34# bypass the script under certain circumstances);
32# for Cabal, we add the global package config file, 35# for Cabal, we add an empty global package config file,
33# because for some reason that's required 36# because for some reason the global package file
37# must be specified
34ghc-getghcpkgbin() { 38ghc-getghcpkgbin() {
35 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
41 echo '[]' > "${T}/empty.conf"
36 echo $(ghc-libdir)/"ghc-pkg.bin" "--global-conf=$(ghc-libdir)/package.conf" 42 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
37 else
38 echo $(ghc-libdir)/"ghc-pkg.bin"
39 fi
40} 43}
41 44
45# @FUNCTION: ghc-version
46# @DESCRIPTION:
42# returns the version of ghc 47# returns the version of ghc
43_GHC_VERSION_CACHE="" 48_GHC_VERSION_CACHE=""
44ghc-version() { 49ghc-version() {
45 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 50 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
46 _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')" 51 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
47 fi 52 fi
48 echo "${_GHC_VERSION_CACHE}" 53 echo "${_GHC_VERSION_CACHE}"
49} 54}
50 55
51# returns true for ghc >= 6.4 56# @FUNCTION: ghc-bestcabalversion
57# @DESCRIPTION:
58# return the best version of the Cabal library that is available
59ghc-bestcabalversion() {
60 # We ask portage, not ghc, so that we only pick up
61 # portage-installed cabal versions.
62 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
63 echo "Cabal-${cabalversion}"
64}
65
66# @FUNCTION: ghc-sanecabal
67# @DESCRIPTION:
68# check if a standalone Cabal version is available for the
69# currently used ghc; takes minimal version of Cabal as
70# an optional argument
52ghc-cabal() { 71ghc-sanecabal() {
53 version_is_at_least "6.4" "$(ghc-version)" 72 local f
73 local version
74 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
75 for f in $(ghc-confdir)/cabal-*; do
76 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
77 done
78 return 1
54} 79}
55 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:
56# returns the library directory 104# returns the library directory
57_GHC_LIBDIR_CACHE="" 105_GHC_LIBDIR_CACHE=""
58ghc-libdir() { 106ghc-libdir() {
59 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 107 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
60 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 108 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
61 fi 109 fi
62 echo "${_GHC_LIBDIR_CACHE}" 110 echo "${_GHC_LIBDIR_CACHE}"
63} 111}
64 112
113# @FUNCTION: ghc-confdir
114# @DESCRIPTION:
65# returns the (Gentoo) library configuration directory 115# returns the (Gentoo) library configuration directory
66ghc-confdir() { 116ghc-confdir() {
67 echo $(ghc-libdir)/gentoo 117 echo "$(ghc-libdir)/gentoo"
68} 118}
69 119
120# @FUNCTION: ghc-localpkgconf
121# @DESCRIPTION:
70# returns the name of the local (package-specific) 122# returns the name of the local (package-specific)
71# package configuration file 123# package configuration file
72ghc-localpkgconf() { 124ghc-localpkgconf() {
73 echo "${PF}.conf" 125 echo "${PF}.conf"
74} 126}
75 127
128# @FUNCTION: ghc-makeghcilib
129# @DESCRIPTION:
76# make a ghci foo.o file from a libfoo.a file 130# make a ghci foo.o file from a libfoo.a file
77ghc-makeghcilib() { 131ghc-makeghcilib() {
78 local outfile 132 local outfile
79 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 133 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
80 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 134 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
81} 135}
82 136
137# @FUNCTION: ghc-package-exists
138# @DESCRIPTION:
139# tests if a ghc package exists
140ghc-package-exists() {
141 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
142}
143
144# @FUNCTION: ghc-setup-pkg
145# @DESCRIPTION:
83# creates a local (package-specific) package 146# creates a local (package-specific) package
84# configuration file; the arguments should be 147# configuration file; the arguments should be
85# uninstalled package description files, each 148# uninstalled package description files, each
86# containing a single package description; if 149# containing a single package description; if
87# no arguments are given, the resulting file is 150# no arguments are given, the resulting file is
88# empty 151# empty
89ghc-setup-pkg() { 152ghc-setup-pkg() {
90 local localpkgconf
91 localpkgconf="${S}/$(ghc-localpkgconf)" 153 local localpkgconf="${S}/$(ghc-localpkgconf)"
92 echo '[]' > ${localpkgconf} 154 echo '[]' > "${localpkgconf}"
155
93 for pkg in $*; do 156 for pkg in $*; do
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -u --force \ 157 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
95 < ${pkg} 158 < "${pkg}" || die "failed to register ${pkg}"
96 done 159 done
97} 160}
98 161
162# @FUNCTION: ghc-fixlibpath
163# @DESCRIPTION:
99# fixes the library and import directories path 164# fixes the library and import directories path
100# of the package configuration file 165# of the package configuration file
101ghc-fixlibpath() { 166ghc-fixlibpath() {
102 sed -i "s|$1|$(ghc-libdir)|g" ${S}/$(ghc-localpkgconf) 167 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
103 if [[ -n "$2" ]]; then 168 if [[ -n "$2" ]]; then
104 sed -i "s|$2|$(ghc-libdir)/imports|g" ${S}/$(ghc-localpkgconf) 169 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
105 fi 170 fi
106} 171}
107 172
173# @FUNCTION: ghc-install-pkg
174# @DESCRIPTION:
108# moves the local (package-specific) package configuration 175# moves the local (package-specific) package configuration
109# file to its final destination 176# file to its final destination
110ghc-install-pkg() { 177ghc-install-pkg() {
111 mkdir -p ${D}/$(ghc-confdir) 178 mkdir -p "${D}/$(ghc-confdir)"
112 cat ${S}/$(ghc-localpkgconf) | sed "s|${D}||g" \ 179 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
113 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 180 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
114} 181}
115 182
183# @FUNCTION: ghc-register-pkg
184# @DESCRIPTION:
116# registers all packages in the local (package-specific) 185# registers all packages in the local (package-specific)
117# package configuration file 186# package configuration file
118ghc-register-pkg() { 187ghc-register-pkg() {
119 local localpkgconf
120 localpkgconf="$(ghc-confdir)/$1" 188 local localpkgconf="$(ghc-confdir)/$1"
189
121 if [[ -f ${localpkgconf} ]]; then 190 if [[ -f "${localpkgconf}" ]]; then
122 for pkg in $(ghc-listpkg ${localpkgconf}); do 191 for pkg in $(ghc-listpkg "${localpkgconf}"); do
123 ebegin "Registering ${pkg} " 192 ebegin "Registering ${pkg} "
124 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 193 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
125 | $(ghc-getghcpkg) -u --force > /dev/null 194 | $(ghc-getghcpkg) update - --force > /dev/null
126 eend $? 195 eend $?
127 done 196 done
128 fi 197 fi
129} 198}
130 199
200# @FUNCTION: ghc-reregister
201# @DESCRIPTION:
131# re-adds all available .conf files to the global 202# re-adds all available .conf files to the global
132# package conf file, to be used on a ghc reinstallation 203# package conf file, to be used on a ghc reinstallation
133ghc-reregister() { 204ghc-reregister() {
134 einfo "Re-adding packages ..." 205 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
135 einfo "(This may cause several warnings, but they should be harmless.)" 206 einfo "Re-adding packages (may cause several harmless warnings) ..."
136 if [ -d "$(ghc-confdir)" ]; then 207 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
137 pushd $(ghc-confdir) > /dev/null 208 if [ -d "${CONFDIR}" ]; then
209 pushd "${CONFDIR}" > /dev/null
138 for conf in *.conf; do 210 for conf in *.conf; do
139 einfo "Processing ${conf} ..." 211 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
140 ghc-register-pkg ${conf}
141 done 212 done
142 popd > /dev/null 213 popd > /dev/null
143 fi 214 fi
144} 215}
145 216
146# unregisters ... 217# @FUNCTION: ghc-unregister-pkg
218# @DESCRIPTION:
219# unregisters a package configuration file
220# protected are all packages that are still contained in
221# another package configuration file
147ghc-unregister-pkg() { 222ghc-unregister-pkg() {
148 local localpkgconf
149 localpkgconf="$(ghc-confdir)/$1" 223 local localpkgconf="$(ghc-confdir)/$1"
224 local i
225 local pkg
226
150 if [[ -f ${localpkgconf} ]]; then 227 if [[ -f "${localpkgconf}" ]]; then
151 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 228 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
229 if ! ghc-package-exists "${pkg}"; then
230 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
231 else
152 ebegin "Unregistering ${pkg} " 232 ebegin "Unregistering ${pkg} "
153 $(ghc-getghcpkg) -r ${pkg} --force > /dev/null 233 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
154 eend $? 234 eend $?
235 fi
155 done 236 done
156 fi 237 fi
157} 238}
158 239
240# @FUNCTION: ghc-reverse
241# @DESCRIPTION:
159# help-function: reverse a list 242# help-function: reverse a list
160ghc-reverse() { 243ghc-reverse() {
161 local result 244 local result
245 local i
162 for i in $1; do 246 for i in $1; do
163 result="${i} ${result}" 247 result="${i} ${result}"
164 done 248 done
165 echo ${result} 249 echo "${result}"
166} 250}
167 251
252# @FUNCTION: ghc-elem
253# @DESCRIPTION:
254# help-function: element-check
255ghc-elem() {
256 local i
257 for i in $2; do
258 [[ "$1" == "${i}" ]] && return 0
259 done
260 return 1
261}
262
263# @FUNCTION: ghc-listpkg
264# @DESCRIPTION:
168# show the packages in a package configuration file 265# show the packages in a package configuration file
169ghc-listpkg() { 266ghc-listpkg() {
170 local ghcpkgcall 267 local ghcpkgcall
171 if ghc-cabal; then 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
273 for i in $*; do
172 echo $($(ghc-getghcpkg) list -f $1) \ 274 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
173 | sed \ 275 | sed \
174 -e "s|^.*${f}:\([^:]*\).*$|\1|" \ 276 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
175 -e "s|/.*$||" \ 277 -e "s|/.*$||" \
176 -e "s|,| |g" -e "s|[()]||g" 278 -e "s|,| |g" -e "s|[(){}]||g"
177 else 279 done
178 echo $($(ghc-getghcpkgbin) -l -f $1) \
179 | cut -f2 -d':' \
180 | sed 's:,: :g'
181 fi
182} 280}
183 281
282# @FUNCTION: ghc-package_pkg_postinst
283# @DESCRIPTION:
184# exported function: registers the package-specific package 284# exported function: registers the package-specific package
185# configuration file 285# configuration file
186ghc-package_pkg_postinst() { 286ghc-package_pkg_postinst() {
187 ghc-register-pkg $(ghc-localpkgconf) 287 ghc-register-pkg "$(ghc-localpkgconf)"
188} 288}
189 289
290# @FUNCTION: ghc-package_pkg_prerm
291# @DESCRIPTION:
190# exported function: unregisters the package-specific 292# exported function: unregisters the package-specific package
191# package configuration file, under the condition that 293# configuration file; a package contained therein is unregistered
192# after removal, no other instances of the package will 294# only if it the same package is not also contained in another
193# be left (necessary check because ghc packages are not 295# package configuration file ...
194# versioned)
195ghc-package_pkg_prerm() { 296ghc-package_pkg_prerm() {
196 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
197 || ghc-unregister-pkg $(ghc-localpkgconf) 297 ghc-unregister-pkg "$(ghc-localpkgconf)"
198} 298}
199 299
200EXPORT_FUNCTIONS pkg_postinst pkg_prerm 300EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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