/[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 1.34 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#
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
36 echo $(ghc-libdir)/"ghc-pkg.bin" "--global-conf=$(ghc-libdir)/package.conf" 40 # the wrapper script with the static flags
41 echo '[]' > "${T}/empty.conf"
42 if version_is_at_least "7.5.20120516" "$(ghc-version)"; then
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 "${_GHC_VERSION_CACHE}" ]]; then
46 _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')" 55 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
47 fi 56 fi
48 echo "${_GHC_VERSION_CACHE}" 57 echo "${_GHC_VERSION_CACHE}"
49} 58}
50 59
51# returns true for ghc >= 6.4 60# @FUNCTION: ghc-bestcabalversion
61# @DESCRIPTION:
62# return the best version of the Cabal library that is available
63ghc-bestcabalversion() {
64 # We ask portage, not ghc, so that we only pick up
65 # portage-installed cabal versions.
66 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
67 echo "Cabal-${cabalversion}"
68}
69
70# @FUNCTION: ghc-sanecabal
71# @DESCRIPTION:
72# check if a standalone Cabal version is available for the
73# currently used ghc; takes minimal version of Cabal as
74# an optional argument
52ghc-cabal() { 75ghc-sanecabal() {
53 version_is_at_least "6.4" "$(ghc-version)" 76 local f
77 local version
78 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
79 for f in $(ghc-confdir)/cabal-*; do
80 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
81 done
82 return 1
54} 83}
55 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:
56# returns the library directory 108# returns the library directory
57_GHC_LIBDIR_CACHE="" 109_GHC_LIBDIR_CACHE=""
58ghc-libdir() { 110ghc-libdir() {
59 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 111 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
60 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 112 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
61 fi 113 fi
62 echo "${_GHC_LIBDIR_CACHE}" 114 echo "${_GHC_LIBDIR_CACHE}"
63} 115}
64 116
117# @FUNCTION: ghc-confdir
118# @DESCRIPTION:
65# returns the (Gentoo) library configuration directory 119# returns the (Gentoo) library configuration directory
66ghc-confdir() { 120ghc-confdir() {
67 echo $(ghc-libdir)/gentoo 121 echo "$(ghc-libdir)/gentoo"
68} 122}
69 123
124# @FUNCTION: ghc-localpkgconf
125# @DESCRIPTION:
70# returns the name of the local (package-specific) 126# returns the name of the local (package-specific)
71# package configuration file 127# package configuration file
72ghc-localpkgconf() { 128ghc-localpkgconf() {
73 echo "${PF}.conf" 129 echo "${PF}.conf"
74} 130}
75 131
132# @FUNCTION: ghc-makeghcilib
133# @DESCRIPTION:
76# make a ghci foo.o file from a libfoo.a file 134# make a ghci foo.o file from a libfoo.a file
77ghc-makeghcilib() { 135ghc-makeghcilib() {
78 local outfile 136 local outfile
79 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 137 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
80 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 138 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
81} 139}
82 140
141# @FUNCTION: ghc-package-exists
142# @DESCRIPTION:
143# tests if a ghc package exists
144ghc-package-exists() {
145 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
146}
147
148# @FUNCTION: ghc-setup-pkg
149# @DESCRIPTION:
83# creates a local (package-specific) package 150# creates a local (package-specific) package
84# configuration file; the arguments should be 151# configuration file; the arguments should be
85# uninstalled package description files, each 152# uninstalled package description files, each
86# containing a single package description; if 153# containing a single package description; if
87# no arguments are given, the resulting file is 154# no arguments are given, the resulting file is
88# empty 155# empty
89ghc-setup-pkg() { 156ghc-setup-pkg() {
90 local localpkgconf
91 localpkgconf="${S}/$(ghc-localpkgconf)" 157 local localpkgconf="${S}/$(ghc-localpkgconf)"
92 echo '[]' > ${localpkgconf} 158 echo '[]' > "${localpkgconf}"
159
93 for pkg in $*; do 160 for pkg in $*; do
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -u --force \ 161 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
95 < ${pkg} 162 < "${pkg}" || die "failed to register ${pkg}"
96 done 163 done
97} 164}
98 165
166# @FUNCTION: ghc-fixlibpath
167# @DESCRIPTION:
99# fixes the library and import directories path 168# fixes the library and import directories path
100# of the package configuration file 169# of the package configuration file
101ghc-fixlibpath() { 170ghc-fixlibpath() {
102 sed -i "s|$1|$(ghc-libdir)|g" ${S}/$(ghc-localpkgconf) 171 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
103 if [[ -n "$2" ]]; then 172 if [[ -n "$2" ]]; then
104 sed -i "s|$2|$(ghc-libdir)/imports|g" ${S}/$(ghc-localpkgconf) 173 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
105 fi 174 fi
106} 175}
107 176
177# @FUNCTION: ghc-install-pkg
178# @DESCRIPTION:
108# moves the local (package-specific) package configuration 179# moves the local (package-specific) package configuration
109# file to its final destination 180# file to its final destination
110ghc-install-pkg() { 181ghc-install-pkg() {
111 mkdir -p ${D}/$(ghc-confdir) 182 mkdir -p "${D}/$(ghc-confdir)"
112 cat ${S}/$(ghc-localpkgconf) | sed "s|${D}||g" \ 183 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
113 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 184 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
114} 185}
115 186
187# @FUNCTION: ghc-register-pkg
188# @DESCRIPTION:
116# registers all packages in the local (package-specific) 189# registers all packages in the local (package-specific)
117# package configuration file 190# package configuration file
118ghc-register-pkg() { 191ghc-register-pkg() {
119 local localpkgconf
120 localpkgconf="$(ghc-confdir)/$1" 192 local localpkgconf="$(ghc-confdir)/$1"
193
121 if [[ -f ${localpkgconf} ]]; then 194 if [[ -f "${localpkgconf}" ]]; then
122 for pkg in $(ghc-listpkg ${localpkgconf}); do 195 for pkg in $(ghc-listpkg "${localpkgconf}"); do
123 ebegin "Registering ${pkg} " 196 ebegin "Registering ${pkg} "
124 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 197 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
125 | $(ghc-getghcpkg) -u --force > /dev/null 198 | $(ghc-getghcpkg) update - --force > /dev/null
126 eend $? 199 eend $?
127 done 200 done
128 fi 201 fi
129} 202}
130 203
204# @FUNCTION: ghc-reregister
205# @DESCRIPTION:
131# re-adds all available .conf files to the global 206# re-adds all available .conf files to the global
132# package conf file, to be used on a ghc reinstallation 207# package conf file, to be used on a ghc reinstallation
133ghc-reregister() { 208ghc-reregister() {
134 einfo "Re-adding packages ..." 209 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
135 einfo "(This may cause several warnings, but they should be harmless.)" 210 einfo "Re-adding packages (may cause several harmless warnings) ..."
136 if [ -d "$(ghc-confdir)" ]; then 211 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
137 pushd $(ghc-confdir) > /dev/null 212 if [ -d "${CONFDIR}" ]; then
213 pushd "${CONFDIR}" > /dev/null
138 for conf in *.conf; do 214 for conf in *.conf; do
139 einfo "Processing ${conf} ..." 215 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
140 ghc-register-pkg ${conf}
141 done 216 done
142 popd > /dev/null 217 popd > /dev/null
143 fi 218 fi
144} 219}
145 220
146# unregisters ... 221# @FUNCTION: ghc-unregister-pkg
222# @DESCRIPTION:
223# unregisters a package configuration file
224# protected are all packages that are still contained in
225# another package configuration file
147ghc-unregister-pkg() { 226ghc-unregister-pkg() {
148 local localpkgconf
149 localpkgconf="$(ghc-confdir)/$1" 227 local localpkgconf="$(ghc-confdir)/$1"
228 local i
229 local pkg
230
150 if [[ -f ${localpkgconf} ]]; then 231 if [[ -f "${localpkgconf}" ]]; then
151 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 232 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
233 if ! ghc-package-exists "${pkg}"; then
234 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
235 else
152 ebegin "Unregistering ${pkg} " 236 ebegin "Unregistering ${pkg} "
153 $(ghc-getghcpkg) -r ${pkg} --force > /dev/null 237 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
154 eend $? 238 eend $?
239 fi
155 done 240 done
156 fi 241 fi
157} 242}
158 243
244# @FUNCTION: ghc-reverse
245# @DESCRIPTION:
159# help-function: reverse a list 246# help-function: reverse a list
160ghc-reverse() { 247ghc-reverse() {
161 local result 248 local result
249 local i
162 for i in $1; do 250 for i in $1; do
163 result="${i} ${result}" 251 result="${i} ${result}"
164 done 252 done
165 echo ${result} 253 echo "${result}"
166} 254}
167 255
256# @FUNCTION: ghc-elem
257# @DESCRIPTION:
258# help-function: element-check
259ghc-elem() {
260 local i
261 for i in $2; do
262 [[ "$1" == "${i}" ]] && return 0
263 done
264 return 1
265}
266
267# @FUNCTION: ghc-listpkg
268# @DESCRIPTION:
168# show the packages in a package configuration file 269# show the packages in a package configuration file
169ghc-listpkg() { 270ghc-listpkg() {
170 local ghcpkgcall 271 local ghcpkgcall
171 if ghc-cabal; then 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
277 for i in $*; do
172 echo $($(ghc-getghcpkg) list -f $1) \ 278 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
173 | sed \ 279 | sed \
174 -e "s|^.*${f}:\([^:]*\).*$|\1|" \ 280 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
175 -e "s|/.*$||" \ 281 -e "s|/.*$||" \
176 -e "s|,| |g" -e "s|[()]||g" 282 -e "s|,| |g" -e "s|[(){}]||g"
177 else 283 done
178 echo $($(ghc-getghcpkgbin) -l -f $1) \
179 | cut -f2 -d':' \
180 | sed 's:,: :g'
181 fi
182} 284}
183 285
286# @FUNCTION: ghc-package_pkg_postinst
287# @DESCRIPTION:
184# exported function: registers the package-specific package 288# exported function: registers the package-specific package
185# configuration file 289# configuration file
186ghc-package_pkg_postinst() { 290ghc-package_pkg_postinst() {
187 ghc-register-pkg $(ghc-localpkgconf) 291 ghc-register-pkg "$(ghc-localpkgconf)"
188} 292}
189 293
294# @FUNCTION: ghc-package_pkg_prerm
295# @DESCRIPTION:
190# exported function: unregisters the package-specific 296# exported function: unregisters the package-specific package
191# package configuration file, under the condition that 297# configuration file; a package contained therein is unregistered
192# after removal, no other instances of the package will 298# only if it the same package is not also contained in another
193# be left (necessary check because ghc packages are not 299# package configuration file ...
194# versioned)
195ghc-package_pkg_prerm() { 300ghc-package_pkg_prerm() {
196 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
197 || ghc-unregister-pkg $(ghc-localpkgconf) 301 ghc-unregister-pkg "$(ghc-localpkgconf)"
198} 302}
199 303
200EXPORT_FUNCTIONS pkg_postinst pkg_prerm 304EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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