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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 1.5 2004/11/24 15:05:49 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#
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 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"
48 else
49 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
50 fi
31} 51}
32 52
53# @FUNCTION: ghc-version
54# @DESCRIPTION:
33# returns the version of ghc 55# returns the version of ghc
56_GHC_VERSION_CACHE=""
34ghc-version() { 57ghc-version() {
35 $(ghc-getghc) --version | sed 's:^.*version ::' 58 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
59 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
60 fi
61 echo "${_GHC_VERSION_CACHE}"
36} 62}
37 63
64# @FUNCTION: ghc-bestcabalversion
65# @DESCRIPTION:
66# return the best version of the Cabal library that is available
67ghc-bestcabalversion() {
68 # We ask portage, not ghc, so that we only pick up
69 # portage-installed cabal versions.
70 local cabalversion="$(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
79ghc-sanecabal() {
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
87}
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:
38# returns the library directory 112# returns the library directory
113_GHC_LIBDIR_CACHE=""
39ghc-libdir() { 114ghc-libdir() {
40 $(ghc-getghc) --print-libdir 115 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
116 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
117 fi
118 echo "${_GHC_LIBDIR_CACHE}"
41} 119}
42 120
121# @FUNCTION: ghc-confdir
122# @DESCRIPTION:
43# returns the (Gentoo) library configuration directory 123# returns the (Gentoo) library configuration directory
44ghc-confdir() { 124ghc-confdir() {
45 echo $(ghc-libdir)/gentoo 125 echo "$(ghc-libdir)/gentoo"
46} 126}
47 127
128# @FUNCTION: ghc-localpkgconf
129# @DESCRIPTION:
48# returns the name of the local (package-specific) 130# returns the name of the local (package-specific)
49# package configuration file 131# package configuration file
50ghc-localpkgconf() { 132ghc-localpkgconf() {
51 echo "${PF}.conf" 133 echo "${PF}.conf"
52} 134}
53 135
136# @FUNCTION: ghc-makeghcilib
137# @DESCRIPTION:
54# make a ghci foo.o file from a libfoo.a file 138# make a ghci foo.o file from a libfoo.a file
55ghc-makeghcilib() { 139ghc-makeghcilib() {
56 local outfile 140 local outfile
57 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 141 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
58 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 142 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
59} 143}
60 144
145# @FUNCTION: ghc-package-exists
146# @DESCRIPTION:
147# tests if a ghc package exists
148ghc-package-exists() {
149 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
150}
151
152# @FUNCTION: ghc-setup-pkg
153# @DESCRIPTION:
61# creates a local (package-specific) package 154# creates a local (package-specific) package
62# configuration file; the arguments should be 155# configuration file; the arguments should be
63# uninstalled package description files, each 156# uninstalled package description files, each
64# containing a single package description; if 157# containing a single package description; if
65# no arguments are given, the resulting file is 158# no arguments are given, the resulting file is
66# empty 159# empty
67ghc-setup-pkg() { 160ghc-setup-pkg() {
68 local localpkgconf
69 localpkgconf="${S}/$(ghc-localpkgconf)" 161 local localpkgconf="${S}/$(ghc-localpkgconf)"
70 echo '[' > ${localpkgconf} 162 echo '[]' > "${localpkgconf}"
71 while [ -n "$1" ]; do
72 cat "$1" >> ${localpkgconf}
73 shift
74 [ -n "$1" ] && echo ',' >> ${localpkgconf}
75 done
76 echo ']' >> ${localpkgconf}
77}
78 163
164 for pkg in $*; do
165 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
166 < "${pkg}" || die "failed to register ${pkg}"
167 done
168}
169
170# @FUNCTION: ghc-fixlibpath
171# @DESCRIPTION:
172# fixes the library and import directories path
173# of the package configuration file
174ghc-fixlibpath() {
175 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
176 if [[ -n "$2" ]]; then
177 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
178 fi
179}
180
181# @FUNCTION: ghc-install-pkg
182# @DESCRIPTION:
79# moves the local (package-specific) package configuration 183# moves the local (package-specific) package configuration
80# file to its final destination 184# file to its final destination
81ghc-install-pkg() { 185ghc-install-pkg() {
82 mkdir -p ${D}/$(ghc-confdir) 186 mkdir -p "${D}/$(ghc-confdir)"
83 cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \ 187 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
84 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 188 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
85} 189}
86 190
191# @FUNCTION: ghc-register-pkg
192# @DESCRIPTION:
87# registers all packages in the local (package-specific) 193# registers all packages in the local (package-specific)
88# package configuration file 194# package configuration file
89ghc-register-pkg() { 195ghc-register-pkg() {
90 local localpkgconf
91 localpkgconf="$(ghc-confdir)/$1" 196 local localpkgconf="$(ghc-confdir)/$1"
197
198 if [[ -f "${localpkgconf}" ]]; then
92 for pkg in $(ghc-listpkg ${localpkgconf}); do 199 for pkg in $(ghc-listpkg "${localpkgconf}"); do
93 einfo "Registering ${pkg} ..." 200 ebegin "Registering ${pkg} "
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 201 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
95 | $(ghc-getghcpkg) -u --force 202 | $(ghc-getghcpkg) update - --force > /dev/null
203 eend $?
96 done 204 done
205 fi
97} 206}
98 207
208# @FUNCTION: ghc-reregister
209# @DESCRIPTION:
99# re-adds all available .conf files to the global 210# re-adds all available .conf files to the global
100# package conf file, to be used on a ghc reinstallation 211# package conf file, to be used on a ghc reinstallation
101ghc-reregister() { 212ghc-reregister() {
102 einfo "Re-adding packages ..." 213 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
103 ewarn "This may cause several warnings, but they should be harmless." 214 einfo "Re-adding packages (may cause several harmless warnings) ..."
104 if [ -d "$(ghc-confdir)" ]; then 215 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
105 pushd $(ghc-confdir) 216 if [ -d "${CONFDIR}" ]; then
217 pushd "${CONFDIR}" > /dev/null
106 for conf in *.conf; do 218 for conf in *.conf; do
107 einfo "Processing ${conf} ..." 219 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
108 ghc-register-pkg ${conf}
109 done 220 done
110 popd 221 popd > /dev/null
111 fi 222 fi
112} 223}
113 224
114# unregisters ... 225# @FUNCTION: ghc-unregister-pkg
226# @DESCRIPTION:
227# unregisters a package configuration file
228# protected are all packages that are still contained in
229# another package configuration file
115ghc-unregister-pkg() { 230ghc-unregister-pkg() {
116 local localpkgconf
117 localpkgconf="$(ghc-confdir)/$1" 231 local localpkgconf="$(ghc-confdir)/$1"
232 local i
233 local pkg
234
235 if [[ -f "${localpkgconf}" ]]; then
118 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
119 einfo "Unregistering ${pkg} ..." 240 ebegin "Unregistering ${pkg} "
120 $(ghc-getghcpkg) -r ${pkg} --force 241 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
242 eend $?
243 fi
121 done 244 done
245 fi
122} 246}
123 247
248# @FUNCTION: ghc-reverse
249# @DESCRIPTION:
124# help-function: reverse a list 250# help-function: reverse a list
125ghc-reverse() { 251ghc-reverse() {
126 local result 252 local result
253 local i
127 for i in $1; do 254 for i in $1; do
128 result="${i} ${result}" 255 result="${i} ${result}"
129 done 256 done
130 echo ${result} 257 echo "${result}"
131} 258}
132 259
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:
133# show the packages in a package configuration file 273# show the packages in a package configuration file
134ghc-listpkg() { 274ghc-listpkg() {
135 [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ 275 local ghcpkgcall
136 | cut -f2 -d':' \ 276 local i
137 | sed 's:,: :g' 277 local extra_flags
278 if version_is_at_least '6.12.3' "$(ghc-version)"; then
279 extra_flags="${extra_flags} -v0"
280 fi
281 for i in $*; do
282 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
283 | sed \
284 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
285 -e "s|/.*$||" \
286 -e "s|,| |g" -e "s|[(){}]||g"
287 done
138} 288}
139 289
290# @FUNCTION: ghc-package_pkg_postinst
291# @DESCRIPTION:
140# exported function: registers the package-specific package 292# exported function: registers the package-specific package
141# configuration file 293# configuration file
142ghc-package_pkg_postinst() { 294ghc-package_pkg_postinst() {
143 ghc-register-pkg $(ghc-localpkgconf) 295 ghc-register-pkg "$(ghc-localpkgconf)"
144} 296}
145 297
298# @FUNCTION: ghc-package_pkg_prerm
299# @DESCRIPTION:
146# exported function: unregisters the package-specific 300# exported function: unregisters the package-specific package
147# package configuration file, under the condition that 301# configuration file; a package contained therein is unregistered
148# after removal, no other instances of the package will 302# only if it the same package is not also contained in another
149# be left (necessary check because ghc packages are not 303# package configuration file ...
150# versioned)
151ghc-package_pkg_prerm() { 304ghc-package_pkg_prerm() {
152 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
153 || ghc-unregister-pkg $(ghc-localpkgconf) 305 ghc-unregister-pkg "$(ghc-localpkgconf)"
154} 306}
155 307
156EXPORT_FUNCTIONS pkg_postinst pkg_prerm 308EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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