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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 1.3 2004/11/04 13:13:59 kosmikus 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
10ECLASS="ghc-package" 14inherit versionator
11INHERITED="$INHERITED $ECLASS"
12 15
13PATH="${PATH}:/opt/ghc/bin" 16# @FUNCTION: ghc-getghc
14 17# @DESCRIPTION:
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);
35# for Cabal, we add an empty global package config file,
36# because for some reason the global package file
37# must be specified
29ghc-getghcpkgbin() { 38ghc-getghcpkgbin() {
30 echo $(ghc-libdir)/"ghc-pkg.bin" 39 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
40 # the wrapper script with the static flags
41 echo '[]' > "${T}/empty.conf"
42 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
31} 43}
32 44
45# @FUNCTION: ghc-version
46# @DESCRIPTION:
33# returns the version of ghc 47# returns the version of ghc
48_GHC_VERSION_CACHE=""
34ghc-version() { 49ghc-version() {
35 $(ghc-getghc) --version | sed 's:^.*version ::' 50 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
51 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
52 fi
53 echo "${_GHC_VERSION_CACHE}"
36} 54}
37 55
56# @FUNCTION: ghc-bestcabalversion
57# @DESCRIPTION:
58# return the best version of the Cabal library that is available
59ghc-bestcabalversion() {
60 # We ask portage, not ghc, so that we only pick up
61 # portage-installed cabal versions.
62 local cabalversion="$(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
71ghc-sanecabal() {
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
79}
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:
38# returns the library directory 104# returns the library directory
105_GHC_LIBDIR_CACHE=""
39ghc-libdir() { 106ghc-libdir() {
40 $(ghc-getghc) --print-libdir 107 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
108 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
109 fi
110 echo "${_GHC_LIBDIR_CACHE}"
41} 111}
42 112
113# @FUNCTION: ghc-confdir
114# @DESCRIPTION:
43# returns the (Gentoo) library configuration directory 115# returns the (Gentoo) library configuration directory
44ghc-confdir() { 116ghc-confdir() {
45 echo $(ghc-libdir)/gentoo 117 echo "$(ghc-libdir)/gentoo"
46} 118}
47 119
120# @FUNCTION: ghc-localpkgconf
121# @DESCRIPTION:
48# returns the name of the local (package-specific) 122# returns the name of the local (package-specific)
49# package configuration file 123# package configuration file
50ghc-localpkgconf() { 124ghc-localpkgconf() {
51 echo "${PF}.conf" 125 echo "${PF}.conf"
52} 126}
53 127
128# @FUNCTION: ghc-makeghcilib
129# @DESCRIPTION:
54# make a ghci foo.o file from a libfoo.a file 130# make a ghci foo.o file from a libfoo.a file
55ghc-makeghcilib() { 131ghc-makeghcilib() {
56 local outfile 132 local outfile
57 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 133 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
58 ld --relocatable --discard-all --output="${outfile}" $1 134 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
59} 135}
60 136
137# @FUNCTION: ghc-package-exists
138# @DESCRIPTION:
139# tests if a ghc package exists
140ghc-package-exists() {
141 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
142}
143
144# @FUNCTION: ghc-setup-pkg
145# @DESCRIPTION:
61# creates a local (package-specific) package 146# creates a local (package-specific) package
62# configuration file; the arguments should be 147# configuration file; the arguments should be
63# uninstalled package description files, each 148# uninstalled package description files, each
64# containing a single package description; if 149# containing a single package description; if
65# no arguments are given, the resulting file is 150# no arguments are given, the resulting file is
66# empty 151# empty
67ghc-setup-pkg() { 152ghc-setup-pkg() {
68 local localpkgconf
69 localpkgconf="${S}/$(ghc-localpkgconf)" 153 local localpkgconf="${S}/$(ghc-localpkgconf)"
70 echo '[' > ${localpkgconf} 154 echo '[]' > "${localpkgconf}"
71 while [ -n "$1" ]; do
72 cat "$1" >> ${localpkgconf}
73 shift
74 [ -n "$1" ] && echo ',' >> ${localpkgconf}
75 done
76 echo ']' >> ${localpkgconf}
77}
78 155
156 for pkg in $*; do
157 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
158 < "${pkg}" || die "failed to register ${pkg}"
159 done
160}
161
162# @FUNCTION: ghc-fixlibpath
163# @DESCRIPTION:
164# fixes the library and import directories path
165# of the package configuration file
166ghc-fixlibpath() {
167 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
168 if [[ -n "$2" ]]; then
169 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
170 fi
171}
172
173# @FUNCTION: ghc-install-pkg
174# @DESCRIPTION:
79# moves the local (package-specific) package configuration 175# moves the local (package-specific) package configuration
80# file to its final destination 176# file to its final destination
81ghc-install-pkg() { 177ghc-install-pkg() {
82 mkdir -p ${D}/$(ghc-confdir) 178 mkdir -p "${D}/$(ghc-confdir)"
83 cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \ 179 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
84 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 180 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
85} 181}
86 182
183# @FUNCTION: ghc-register-pkg
184# @DESCRIPTION:
87# registers all packages in the local (package-specific) 185# registers all packages in the local (package-specific)
88# package configuration file 186# package configuration file
89ghc-register-pkg() { 187ghc-register-pkg() {
90 local localpkgconf
91 localpkgconf="$(ghc-confdir)/$1" 188 local localpkgconf="$(ghc-confdir)/$1"
189
190 if [[ -f "${localpkgconf}" ]]; then
92 for pkg in $(ghc-listpkg ${localpkgconf}); do 191 for pkg in $(ghc-listpkg "${localpkgconf}"); do
93 einfo "Registering ${pkg} ..." 192 ebegin "Registering ${pkg} "
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 193 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
95 | $(ghc-getghcpkg) -u --force 194 | $(ghc-getghcpkg) update - --force > /dev/null
195 eend $?
96 done 196 done
197 fi
97} 198}
98 199
200# @FUNCTION: ghc-reregister
201# @DESCRIPTION:
99# re-adds all available .conf files to the global 202# re-adds all available .conf files to the global
100# package conf file, to be used on a ghc reinstallation 203# package conf file, to be used on a ghc reinstallation
101ghc-reregister() { 204ghc-reregister() {
102 einfo "Re-adding packages ..." 205 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
103 ewarn "This may cause several warnings, but they should be harmless." 206 einfo "Re-adding packages (may cause several harmless warnings) ..."
104 pushd $(ghc-confdir) 207 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
208 if [ -d "${CONFDIR}" ]; then
209 pushd "${CONFDIR}" > /dev/null
105 for conf in *.conf; do 210 for conf in *.conf; do
106 einfo "Processing ${conf} ..." 211 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
107 ghc-register-pkg ${conf}
108 done 212 done
109 popd 213 popd > /dev/null
214 fi
110} 215}
111 216
112# unregisters ... 217# @FUNCTION: ghc-unregister-pkg
218# @DESCRIPTION:
219# unregisters a package configuration file
220# protected are all packages that are still contained in
221# another package configuration file
113ghc-unregister-pkg() { 222ghc-unregister-pkg() {
114 local localpkgconf
115 localpkgconf="$(ghc-confdir)/$1" 223 local localpkgconf="$(ghc-confdir)/$1"
224 local i
225 local pkg
226
227 if [[ -f "${localpkgconf}" ]]; then
116 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
117 einfo "Unregistering ${pkg} ..." 232 ebegin "Unregistering ${pkg} "
118 $(ghc-getghcpkg) -r ${pkg} --force 233 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
234 eend $?
235 fi
119 done 236 done
237 fi
120} 238}
121 239
240# @FUNCTION: ghc-reverse
241# @DESCRIPTION:
122# help-function: reverse a list 242# help-function: reverse a list
123ghc-reverse() { 243ghc-reverse() {
124 local result 244 local result
245 local i
125 for i in $1; do 246 for i in $1; do
126 result="${i} ${result}" 247 result="${i} ${result}"
127 done 248 done
128 echo ${result} 249 echo "${result}"
129} 250}
130 251
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:
131# show the packages in a package configuration file 265# show the packages in a package configuration file
132ghc-listpkg() { 266ghc-listpkg() {
133 [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ 267 local ghcpkgcall
134 | cut -f2 -d':' \ 268 local i
135 | sed 's:,: :g' 269 local extra_flags
270 if version_is_at_least '6.12.3' "$(ghc-version)"; then
271 extra_flags="${extra_flags} -v0"
272 fi
273 for i in $*; do
274 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
275 | sed \
276 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
277 -e "s|/.*$||" \
278 -e "s|,| |g" -e "s|[(){}]||g"
279 done
136} 280}
137 281
282# @FUNCTION: ghc-package_pkg_postinst
283# @DESCRIPTION:
138# exported function: registers the package-specific package 284# exported function: registers the package-specific package
139# configuration file 285# configuration file
140ghc-package_pkg_postinst() { 286ghc-package_pkg_postinst() {
141 ghc-register-pkg $(ghc-localpkgconf) 287 ghc-register-pkg "$(ghc-localpkgconf)"
142} 288}
143 289
290# @FUNCTION: ghc-package_pkg_prerm
291# @DESCRIPTION:
144# exported function: unregisters the package-specific 292# exported function: unregisters the package-specific package
145# package configuration file, under the condition that 293# configuration file; a package contained therein is unregistered
146# after removal, no other instances of the package will 294# only if it the same package is not also contained in another
147# be left (necessary check because ghc packages are not 295# package configuration file ...
148# versioned)
149ghc-package_pkg_prerm() { 296ghc-package_pkg_prerm() {
150 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
151 || ghc-unregister-pkg $(ghc-localpkgconf) 297 ghc-unregister-pkg "$(ghc-localpkgconf)"
152} 298}
153 299
154EXPORT_FUNCTIONS pkg_postinst pkg_prerm 300EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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