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1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2011 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 1.4 2004/11/04 14:16:14 kosmikus Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.32 2011/11/24 00:04:13 vapier 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() {
39 if version_is_at_least "6.10" "$(ghc-version)"; then
40 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
41 # the wrapper script with the static flags
42 echo '[]' > "${T}/empty.conf"
43 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
44 elif ghc-cabal; then
45 echo '[]' > "${T}/empty.conf"
46 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
47 else
30 echo $(ghc-libdir)/"ghc-pkg.bin" 48 echo "$(ghc-libdir)/ghc-pkg.bin"
49 fi
31} 50}
32 51
52# @FUNCTION: ghc-version
53# @DESCRIPTION:
33# returns the version of ghc 54# returns the version of ghc
55_GHC_VERSION_CACHE=""
34ghc-version() { 56ghc-version() {
35 $(ghc-getghc) --version | sed 's:^.*version ::' 57 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
58 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
59 fi
60 echo "${_GHC_VERSION_CACHE}"
36} 61}
37 62
63# @FUNCTION: ghc-cabal
64# @DESCRIPTION:
65# this function can be used to determine if ghc itself
66# uses the Cabal package format; it has nothing to do
67# with the Cabal libraries ... ghc uses the Cabal package
68# format since version 6.4
69ghc-cabal() {
70 version_is_at_least "6.4" "$(ghc-version)"
71}
72
73# @FUNCTION: ghc-bestcabalversion
74# @DESCRIPTION:
75# return the best version of the Cabal library that is available
76ghc-bestcabalversion() {
77 local cabalversion
78 if ghc-cabal; then
79 # We ask portage, not ghc, so that we only pick up
80 # portage-installed cabal versions.
81 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
82 echo "Cabal-${cabalversion}"
83 else
84 # older ghc's don't support package versioning
85 echo Cabal
86 fi
87}
88
89# @FUNCTION: ghc-sanecabal
90# @DESCRIPTION:
91# check if a standalone Cabal version is available for the
92# currently used ghc; takes minimal version of Cabal as
93# an optional argument
94ghc-sanecabal() {
95 local f
96 local version
97 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
98 for f in $(ghc-confdir)/cabal-*; do
99 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
100 done
101 return 1
102}
103
104# @FUNCTION: ghc-saneghc
105# @DESCRIPTION:
106# checks if ghc and ghc-bin are installed in the same version
107# (if they're both installed); if this is not the case, we
108# unfortunately cannot trust portage's dependency resolution
109ghc-saneghc() {
110 local ghcversion
111 local ghcbinversion
112 if [[ "${PN}" == "ghc" || "${PN}" == "ghc-bin" ]]; then
113 return
114 fi
115 if has_version dev-lang/ghc && has_version dev-lang/ghc-bin; then
116 ghcversion="$(ghc-extractportageversion dev-lang/ghc)"
117 ghcbinversion="$(ghc-extractportageversion dev-lang/ghc-bin)"
118 if [[ "${ghcversion}" != "${ghcbinversion}" ]]; then
119 return 1
120 fi
121 fi
122 return
123}
124
125# @FUNCTION: ghc-supports-shared-libraries
126# @DESCRIPTION:
127# checks if ghc is built with support for building
128# shared libraries (aka '-dynamic' option)
129ghc-supports-shared-libraries() {
130 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
131}
132
133# @FUNCTION: ghc-extractportageversion
134# @DESCRIPTION:
135# extract the version of a portage-installed package
136ghc-extractportageversion() {
137 local pkg
138 local version
139 pkg="$(best_version $1)"
140 version="${pkg#$1-}"
141 version="${version%-r*}"
142 version="${version%_pre*}"
143 echo "${version}"
144}
145
146# @FUNCTION: ghc-libdir
147# @DESCRIPTION:
38# returns the library directory 148# returns the library directory
149_GHC_LIBDIR_CACHE=""
39ghc-libdir() { 150ghc-libdir() {
40 $(ghc-getghc) --print-libdir 151 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
152 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
153 fi
154 echo "${_GHC_LIBDIR_CACHE}"
41} 155}
42 156
157# @FUNCTION: ghc-confdir
158# @DESCRIPTION:
43# returns the (Gentoo) library configuration directory 159# returns the (Gentoo) library configuration directory
44ghc-confdir() { 160ghc-confdir() {
45 echo $(ghc-libdir)/gentoo 161 echo "$(ghc-libdir)/gentoo"
46} 162}
47 163
164# @FUNCTION: ghc-localpkgconf
165# @DESCRIPTION:
48# returns the name of the local (package-specific) 166# returns the name of the local (package-specific)
49# package configuration file 167# package configuration file
50ghc-localpkgconf() { 168ghc-localpkgconf() {
51 echo "${PF}.conf" 169 echo "${PF}.conf"
52} 170}
53 171
172# @FUNCTION: ghc-makeghcilib
173# @DESCRIPTION:
54# make a ghci foo.o file from a libfoo.a file 174# make a ghci foo.o file from a libfoo.a file
55ghc-makeghcilib() { 175ghc-makeghcilib() {
56 local outfile 176 local outfile
57 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 177 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
58 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 178 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
59} 179}
60 180
181# @FUNCTION: ghc-package-exists
182# @DESCRIPTION:
183# tests if a ghc package exists
184ghc-package-exists() {
185 local describe_flag
186 if version_is_at_least "6.4" "$(ghc-version)"; then
187 describe_flag="describe"
188 else
189 describe_flag="--show-package"
190 fi
191
192 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
193}
194
195# @FUNCTION: ghc-setup-pkg
196# @DESCRIPTION:
61# creates a local (package-specific) package 197# creates a local (package-specific) package
62# configuration file; the arguments should be 198# configuration file; the arguments should be
63# uninstalled package description files, each 199# uninstalled package description files, each
64# containing a single package description; if 200# containing a single package description; if
65# no arguments are given, the resulting file is 201# no arguments are given, the resulting file is
66# empty 202# empty
67ghc-setup-pkg() { 203ghc-setup-pkg() {
68 local localpkgconf 204 local localpkgconf
69 localpkgconf="${S}/$(ghc-localpkgconf)" 205 localpkgconf="${S}/$(ghc-localpkgconf)"
70 echo '[' > ${localpkgconf} 206 echo '[]' > "${localpkgconf}"
71 while [ -n "$1" ]; do 207 local update_flag
72 cat "$1" >> ${localpkgconf} 208 if version_is_at_least "6.4" "$(ghc-version)"; then
73 shift 209 update_flag="update -"
74 [ -n "$1" ] && echo ',' >> ${localpkgconf} 210 else
211 update_flag="--update-package"
212 fi
213 for pkg in $*; do
214 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
215 < "${pkg}" || die "failed to register ${pkg}"
75 done 216 done
76 echo ']' >> ${localpkgconf}
77} 217}
78 218
219# @FUNCTION: ghc-fixlibpath
220# @DESCRIPTION:
221# fixes the library and import directories path
222# of the package configuration file
223ghc-fixlibpath() {
224 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
225 if [[ -n "$2" ]]; then
226 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
227 fi
228}
229
230# @FUNCTION: ghc-install-pkg
231# @DESCRIPTION:
79# moves the local (package-specific) package configuration 232# moves the local (package-specific) package configuration
80# file to its final destination 233# file to its final destination
81ghc-install-pkg() { 234ghc-install-pkg() {
82 mkdir -p ${D}/$(ghc-confdir) 235 mkdir -p "${D}/$(ghc-confdir)"
83 cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \ 236 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
84 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 237 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
85} 238}
86 239
240# @FUNCTION: ghc-register-pkg
241# @DESCRIPTION:
87# registers all packages in the local (package-specific) 242# registers all packages in the local (package-specific)
88# package configuration file 243# package configuration file
89ghc-register-pkg() { 244ghc-register-pkg() {
90 local localpkgconf 245 local localpkgconf
91 localpkgconf="$(ghc-confdir)/$1" 246 localpkgconf="$(ghc-confdir)/$1"
247 local update_flag
248 local describe_flag
249 if version_is_at_least "6.4" "$(ghc-version)"; then
250 update_flag="update -"
251 describe_flag="describe"
252 else
253 update_flag="--update-package"
254 describe_flag="--show-package"
255 fi
256 if [[ -f "${localpkgconf}" ]]; then
92 for pkg in $(ghc-listpkg ${localpkgconf}); do 257 for pkg in $(ghc-listpkg "${localpkgconf}"); do
93 einfo "Registering ${pkg} ..." 258 ebegin "Registering ${pkg} "
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 259 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \
95 | $(ghc-getghcpkg) -u --force 260 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null
261 eend $?
96 done 262 done
263 fi
97} 264}
98 265
266# @FUNCTION: ghc-reregister
267# @DESCRIPTION:
99# re-adds all available .conf files to the global 268# re-adds all available .conf files to the global
100# package conf file, to be used on a ghc reinstallation 269# package conf file, to be used on a ghc reinstallation
101ghc-reregister() { 270ghc-reregister() {
102 einfo "Re-adding packages ..." 271 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
103 ewarn "This may cause several warnings, but they should be harmless." 272 einfo "Re-adding packages (may cause several harmless warnings) ..."
104 pushd $(ghc-confdir) 273 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
274 if [ -d "${CONFDIR}" ]; then
275 pushd "${CONFDIR}" > /dev/null
105 for conf in *.conf; do 276 for conf in *.conf; do
106 einfo "Processing ${conf} ..." 277 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
107 ghc-register-pkg ${conf}
108 done 278 done
109 popd 279 popd > /dev/null
280 fi
110} 281}
111 282
112# unregisters ... 283# @FUNCTION: ghc-unregister-pkg
284# @DESCRIPTION:
285# unregisters a package configuration file
286# protected are all packages that are still contained in
287# another package configuration file
113ghc-unregister-pkg() { 288ghc-unregister-pkg() {
114 local localpkgconf 289 local localpkgconf
290 local i
291 local pkg
292 local unregister_flag
115 localpkgconf="$(ghc-confdir)/$1" 293 localpkgconf="$(ghc-confdir)/$1"
294
295 if version_is_at_least "6.4" "$(ghc-version)"; then
296 unregister_flag="unregister"
297 else
298 unregister_flag="--remove-package"
299 fi
300
301 if [[ -f "${localpkgconf}" ]]; then
116 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 302 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
303 if ! ghc-package-exists "${pkg}"; then
304 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
305 else
117 einfo "Unregistering ${pkg} ..." 306 ebegin "Unregistering ${pkg} "
118 $(ghc-getghcpkg) -r ${pkg} --force 307 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
308 eend $?
309 fi
119 done 310 done
311 fi
120} 312}
121 313
314# @FUNCTION: ghc-reverse
315# @DESCRIPTION:
122# help-function: reverse a list 316# help-function: reverse a list
123ghc-reverse() { 317ghc-reverse() {
124 local result 318 local result
319 local i
125 for i in $1; do 320 for i in $1; do
126 result="${i} ${result}" 321 result="${i} ${result}"
127 done 322 done
128 echo ${result} 323 echo "${result}"
129} 324}
130 325
326# @FUNCTION: ghc-elem
327# @DESCRIPTION:
328# help-function: element-check
329ghc-elem() {
330 local i
331 for i in $2; do
332 [[ "$1" == "${i}" ]] && return 0
333 done
334 return 1
335}
336
337# @FUNCTION: ghc-listpkg
338# @DESCRIPTION:
131# show the packages in a package configuration file 339# show the packages in a package configuration file
132ghc-listpkg() { 340ghc-listpkg() {
341 local ghcpkgcall
342 local i
343 local extra_flags
344 if version_is_at_least '6.12.3' "$(ghc-version)"; then
345 extra_flags="${extra_flags} -v0"
346 fi
347 for i in $*; do
348 if ghc-cabal; then
349 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
350 | sed \
351 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
352 -e "s|/.*$||" \
353 -e "s|,| |g" -e "s|[(){}]||g"
354 else
133 [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ 355 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
134 | cut -f2 -d':' \ 356 | cut -f2 -d':' \
135 | sed 's:,: :g' 357 | sed 's:,: :g'
358 fi
359 done
136} 360}
137 361
362# @FUNCTION: ghc-package_pkg_setup
363# @DESCRIPTION:
364# exported function: check if we have a consistent ghc installation
365ghc-package_pkg_setup() {
366 if ! ghc-saneghc; then
367 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin"
368 eerror "installed. Portage currently cannot work correctly with this setup."
369 eerror "There are several possibilities to work around this problem:"
370 eerror "(1) Up/downgrade ghc-bin to the same version as ghc."
371 eerror "(2) Unmerge ghc-bin."
372 eerror "(3) Unmerge ghc."
373 eerror "You probably want option 1 or 2."
374 die "Inconsistent versions of ghc and ghc-bin."
375 fi
376}
377
378# @FUNCTION: ghc-package_pkg_postinst
379# @DESCRIPTION:
138# exported function: registers the package-specific package 380# exported function: registers the package-specific package
139# configuration file 381# configuration file
140ghc-package_pkg_postinst() { 382ghc-package_pkg_postinst() {
141 ghc-register-pkg $(ghc-localpkgconf) 383 ghc-register-pkg "$(ghc-localpkgconf)"
142} 384}
143 385
386# @FUNCTION: ghc-package_pkg_prerm
387# @DESCRIPTION:
144# exported function: unregisters the package-specific 388# exported function: unregisters the package-specific package
145# package configuration file, under the condition that 389# configuration file; a package contained therein is unregistered
146# after removal, no other instances of the package will 390# only if it the same package is not also contained in another
147# be left (necessary check because ghc packages are not 391# package configuration file ...
148# versioned)
149ghc-package_pkg_prerm() { 392ghc-package_pkg_prerm() {
150 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
151 || ghc-unregister-pkg $(ghc-localpkgconf) 393 ghc-unregister-pkg "$(ghc-localpkgconf)"
152} 394}
153 395
154EXPORT_FUNCTIONS pkg_postinst pkg_prerm 396EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm

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