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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 1.13 2005/07/06 20:23:20 agriffis 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#
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 16# @FUNCTION: ghc-getghc
13# promote /opt/ghc/bin to a better position in the search path 17# @DESCRIPTION:
14PATH="/usr/bin:/opt/ghc/bin:${PATH}"
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 "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 "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 the global package config file, 35# for Cabal, we add an empty global package config file,
31# because for some reason that's required 36# because for some reason the global package file
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
34 echo $(ghc-libdir)/"ghc-pkg.bin" "--global-conf=$(ghc-libdir)/package.conf" 40 # the wrapper script with the static flags
41 echo '[]' > "${T}/empty.conf"
42 if version_is_at_least "7.7.20121101" "$(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" "$(ghc-version)"; then
47 echo "$(ghc-libdir)/ghc-pkg" "--global-package-db=${T}/empty.conf"
35 else 48 else
36 echo $(ghc-libdir)/"ghc-pkg.bin" 49 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
37 fi 50 fi
38} 51}
39 52
53# @FUNCTION: ghc-version
54# @DESCRIPTION:
40# returns the version of ghc 55# returns the version of ghc
41_GHC_VERSION_CACHE="" 56_GHC_VERSION_CACHE=""
42ghc-version() { 57ghc-version() {
43 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 58 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
44 _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')" 59 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
45 fi 60 fi
46 echo "${_GHC_VERSION_CACHE}" 61 echo "${_GHC_VERSION_CACHE}"
47} 62}
48 63
49# returns true for ghc >= 6.4 64# @FUNCTION: ghc-bestcabalversion
65# @DESCRIPTION:
66# return the best version of the Cabal library that is available
67ghc-bestcabalversion() {
68 # We ask portage, not ghc, so that we only pick up
69 # portage-installed cabal versions.
70 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
71 echo "Cabal-${cabalversion}"
72}
73
74# @FUNCTION: ghc-sanecabal
75# @DESCRIPTION:
76# check if a standalone Cabal version is available for the
77# currently used ghc; takes minimal version of Cabal as
78# an optional argument
50ghc-cabal() { 79ghc-sanecabal() {
51 version_is_at_least "6.4" "$(ghc-version)" 80 local f
81 local version
82 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
83 for f in $(ghc-confdir)/cabal-*; do
84 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
85 done
86 return 1
52} 87}
53 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:
54# returns the library directory 112# returns the library directory
55_GHC_LIBDIR_CACHE="" 113_GHC_LIBDIR_CACHE=""
56ghc-libdir() { 114ghc-libdir() {
57 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 115 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
58 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 116 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
59 fi 117 fi
60 echo "${_GHC_LIBDIR_CACHE}" 118 echo "${_GHC_LIBDIR_CACHE}"
61} 119}
62 120
121# @FUNCTION: ghc-confdir
122# @DESCRIPTION:
63# returns the (Gentoo) library configuration directory 123# returns the (Gentoo) library configuration directory
64ghc-confdir() { 124ghc-confdir() {
65 echo $(ghc-libdir)/gentoo 125 echo "$(ghc-libdir)/gentoo"
66} 126}
67 127
128# @FUNCTION: ghc-localpkgconf
129# @DESCRIPTION:
68# returns the name of the local (package-specific) 130# returns the name of the local (package-specific)
69# package configuration file 131# package configuration file
70ghc-localpkgconf() { 132ghc-localpkgconf() {
71 echo "${PF}.conf" 133 echo "${PF}.conf"
72} 134}
73 135
136# @FUNCTION: ghc-makeghcilib
137# @DESCRIPTION:
74# make a ghci foo.o file from a libfoo.a file 138# make a ghci foo.o file from a libfoo.a file
75ghc-makeghcilib() { 139ghc-makeghcilib() {
76 local outfile 140 local outfile
77 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 141 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
78 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 142 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
79} 143}
80 144
145# @FUNCTION: ghc-package-exists
146# @DESCRIPTION:
147# tests if a ghc package exists
148ghc-package-exists() {
149 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
150}
151
152# @FUNCTION: ghc-setup-pkg
153# @DESCRIPTION:
81# creates a local (package-specific) package 154# creates a local (package-specific) package
82# configuration file; the arguments should be 155# configuration file; the arguments should be
83# uninstalled package description files, each 156# uninstalled package description files, each
84# containing a single package description; if 157# containing a single package description; if
85# no arguments are given, the resulting file is 158# no arguments are given, the resulting file is
86# empty 159# empty
87ghc-setup-pkg() { 160ghc-setup-pkg() {
88 local localpkgconf
89 localpkgconf="${S}/$(ghc-localpkgconf)" 161 local localpkgconf="${S}/$(ghc-localpkgconf)"
90 echo '[]' > ${localpkgconf} 162 echo '[]' > "${localpkgconf}"
163
91 for pkg in $*; do 164 for pkg in $*; do
92 $(ghc-getghcpkgbin) -f ${localpkgconf} -u --force \ 165 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
93 < ${pkg} || die "failed to register ${pkg}" 166 < "${pkg}" || die "failed to register ${pkg}"
94 done 167 done
95} 168}
96 169
170# @FUNCTION: ghc-fixlibpath
171# @DESCRIPTION:
97# fixes the library and import directories path 172# fixes the library and import directories path
98# of the package configuration file 173# of the package configuration file
99ghc-fixlibpath() { 174ghc-fixlibpath() {
100 sed -i "s|$1|$(ghc-libdir)|g" ${S}/$(ghc-localpkgconf) 175 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
101 if [[ -n "$2" ]]; then 176 if [[ -n "$2" ]]; then
102 sed -i "s|$2|$(ghc-libdir)/imports|g" ${S}/$(ghc-localpkgconf) 177 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
103 fi 178 fi
104} 179}
105 180
181# @FUNCTION: ghc-install-pkg
182# @DESCRIPTION:
106# moves the local (package-specific) package configuration 183# moves the local (package-specific) package configuration
107# file to its final destination 184# file to its final destination
108ghc-install-pkg() { 185ghc-install-pkg() {
109 mkdir -p ${D}/$(ghc-confdir) 186 mkdir -p "${D}/$(ghc-confdir)"
110 cat ${S}/$(ghc-localpkgconf) | sed "s|${D}||g" \ 187 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
111 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 188 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
112} 189}
113 190
191# @FUNCTION: ghc-register-pkg
192# @DESCRIPTION:
114# registers all packages in the local (package-specific) 193# registers all packages in the local (package-specific)
115# package configuration file 194# package configuration file
116ghc-register-pkg() { 195ghc-register-pkg() {
117 local localpkgconf
118 localpkgconf="$(ghc-confdir)/$1" 196 local localpkgconf="$(ghc-confdir)/$1"
197
119 if [[ -f ${localpkgconf} ]]; then 198 if [[ -f "${localpkgconf}" ]]; then
120 for pkg in $(ghc-listpkg ${localpkgconf}); do 199 for pkg in $(ghc-listpkg "${localpkgconf}"); do
121 ebegin "Registering ${pkg} " 200 ebegin "Registering ${pkg} "
122 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 201 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
123 | $(ghc-getghcpkg) -u --force > /dev/null 202 | $(ghc-getghcpkg) update - --force > /dev/null
124 eend $? 203 eend $?
125 done 204 done
126 fi 205 fi
127} 206}
128 207
208# @FUNCTION: ghc-reregister
209# @DESCRIPTION:
129# re-adds all available .conf files to the global 210# re-adds all available .conf files to the global
130# package conf file, to be used on a ghc reinstallation 211# package conf file, to be used on a ghc reinstallation
131ghc-reregister() { 212ghc-reregister() {
132 einfo "Re-adding packages ..." 213 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
133 einfo "(This may cause several warnings, but they should be harmless.)" 214 einfo "Re-adding packages (may cause several harmless warnings) ..."
134 if [ -d "$(ghc-confdir)" ]; then 215 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
135 pushd $(ghc-confdir) > /dev/null 216 if [ -d "${CONFDIR}" ]; then
217 pushd "${CONFDIR}" > /dev/null
136 for conf in *.conf; do 218 for conf in *.conf; do
137 einfo "Processing ${conf} ..." 219 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
138 ghc-register-pkg ${conf}
139 done 220 done
140 popd > /dev/null 221 popd > /dev/null
141 fi 222 fi
142} 223}
143 224
144# unregisters ... 225# @FUNCTION: ghc-unregister-pkg
226# @DESCRIPTION:
227# unregisters a package configuration file
228# protected are all packages that are still contained in
229# another package configuration file
145ghc-unregister-pkg() { 230ghc-unregister-pkg() {
146 local localpkgconf
147 localpkgconf="$(ghc-confdir)/$1" 231 local localpkgconf="$(ghc-confdir)/$1"
232 local i
233 local pkg
234
148 if [[ -f ${localpkgconf} ]]; then 235 if [[ -f "${localpkgconf}" ]]; then
149 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 236 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
237 if ! ghc-package-exists "${pkg}"; then
238 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
239 else
150 ebegin "Unregistering ${pkg} " 240 ebegin "Unregistering ${pkg} "
151 $(ghc-getghcpkg) -r ${pkg} --force > /dev/null 241 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
152 eend $? 242 eend $?
243 fi
153 done 244 done
154 fi 245 fi
155} 246}
156 247
248# @FUNCTION: ghc-reverse
249# @DESCRIPTION:
157# help-function: reverse a list 250# help-function: reverse a list
158ghc-reverse() { 251ghc-reverse() {
159 local result 252 local result
253 local i
160 for i in $1; do 254 for i in $1; do
161 result="${i} ${result}" 255 result="${i} ${result}"
162 done 256 done
163 echo ${result} 257 echo "${result}"
164} 258}
165 259
260# @FUNCTION: ghc-elem
261# @DESCRIPTION:
262# help-function: element-check
263ghc-elem() {
264 local i
265 for i in $2; do
266 [[ "$1" == "${i}" ]] && return 0
267 done
268 return 1
269}
270
271# @FUNCTION: ghc-listpkg
272# @DESCRIPTION:
166# show the packages in a package configuration file 273# show the packages in a package configuration file
167ghc-listpkg() { 274ghc-listpkg() {
168 local ghcpkgcall 275 local ghcpkgcall
169 if ghc-cabal; then 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
281 for i in $*; do
170 echo $($(ghc-getghcpkg) list -f $1) \ 282 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
171 | sed \ 283 | sed \
172 -e "s|^.*${f}:\([^:]*\).*$|\1|" \ 284 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
173 -e "s|/.*$||" \ 285 -e "s|/.*$||" \
174 -e "s|,| |g" -e "s|[()]||g" 286 -e "s|,| |g" -e "s|[(){}]||g"
175 else 287 done
176 echo $($(ghc-getghcpkgbin) -l -f $1) \
177 | cut -f2 -d':' \
178 | sed 's:,: :g'
179 fi
180} 288}
181 289
290# @FUNCTION: ghc-package_pkg_postinst
291# @DESCRIPTION:
182# exported function: registers the package-specific package 292# exported function: registers the package-specific package
183# configuration file 293# configuration file
184ghc-package_pkg_postinst() { 294ghc-package_pkg_postinst() {
185 ghc-register-pkg $(ghc-localpkgconf) 295 ghc-register-pkg "$(ghc-localpkgconf)"
186} 296}
187 297
298# @FUNCTION: ghc-package_pkg_prerm
299# @DESCRIPTION:
188# exported function: unregisters the package-specific 300# exported function: unregisters the package-specific package
189# package configuration file, under the condition that 301# configuration file; a package contained therein is unregistered
190# after removal, no other instances of the package will 302# only if it the same package is not also contained in another
191# be left (necessary check because ghc packages are not 303# package configuration file ...
192# versioned)
193ghc-package_pkg_prerm() { 304ghc-package_pkg_prerm() {
194 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
195 || ghc-unregister-pkg $(ghc-localpkgconf) 305 ghc-unregister-pkg "$(ghc-localpkgconf)"
196} 306}
197 307
198EXPORT_FUNCTIONS pkg_postinst pkg_prerm 308EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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