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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 1.18 2006/08/02 19:49:03 dcoutts Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.29 2011/03/13 20:12:13 slyfox Exp $
4# 4#
5# Author: Andres Loeh <kosmikus@gentoo.org> 5# @ECLASS: ghc-package.eclass
6# Maintained by: Haskell herd <haskell@gentoo.org> 6# @MAINTAINER:
7# "Gentoo's Haskell Language team" <haskell@gentoo.org>
7# 8#
9# Original Author: Andres Loeh <kosmikus@gentoo.org>
10#
8# This eclass helps with the Glasgow Haskell Compiler's package 11# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
9# configuration utility. 12# @DESCRIPTION:
13# Helper eclass to handle ghc installation/upgrade/deinstallation process.
10 14
11inherit versionator 15inherit versionator
12 16
13# promote /opt/ghc/bin to a better position in the search path 17# @FUNCTION: ghc-getghc
14PATH="/usr/bin:/opt/ghc/bin:${PATH}" 18# @DESCRIPTION:
15
16# for later configuration using environment variables/
17# returns the name of the ghc executable 19# returns the name of the ghc executable
18ghc-getghc() { 20ghc-getghc() {
19 echo "$(which ghc)" 21 type -P ghc
20} 22}
21 23
24# @FUNCTION: ghc-getghcpkg
25# @DESCRIPTION:
22# returns the name of the ghc-pkg executable 26# Internal function determines returns the name of the ghc-pkg executable
23ghc-getghcpkg() { 27ghc-getghcpkg() {
24 echo "$(which ghc-pkg)" 28 type -P ghc-pkg
25} 29}
26 30
31# @FUNCTION: ghc-getghcpkgbin
32# @DESCRIPTION:
27# returns the name of the ghc-pkg binary (ghc-pkg 33# returns the name of the ghc-pkg binary (ghc-pkg
28# itself usually is a shell script, and we have to 34# itself usually is a shell script, and we have to
29# bypass the script under certain circumstances); 35# bypass the script under certain circumstances);
30# for Cabal, we add an empty global package config file, 36# for Cabal, we add an empty global package config file,
31# because for some reason the global package file 37# because for some reason the global package file
32# must be specified 38# must be specified
33ghc-getghcpkgbin() { 39ghc-getghcpkgbin() {
40 if version_is_at_least "6.10" "$(ghc-version)"; then
41 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
42 # the wrapper script with the static flags
43 echo '[]' > "${T}/empty.conf"
44 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
34 if ghc-cabal; then 45 elif ghc-cabal; then
35 echo '[]' > "${T}/empty.conf" 46 echo '[]' > "${T}/empty.conf"
36 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" 47 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
37 else 48 else
38 echo "$(ghc-libdir)/ghc-pkg.bin" 49 echo "$(ghc-libdir)/ghc-pkg.bin"
39 fi 50 fi
40} 51}
41 52
53# @FUNCTION: ghc-version
54# @DESCRIPTION:
42# returns the version of ghc 55# returns the version of ghc
43_GHC_VERSION_CACHE="" 56_GHC_VERSION_CACHE=""
44ghc-version() { 57ghc-version() {
45 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then 58 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
46 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" 59 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
47 fi 60 fi
48 echo "${_GHC_VERSION_CACHE}" 61 echo "${_GHC_VERSION_CACHE}"
49} 62}
50 63
64# @FUNCTION: ghc-cabal
65# @DESCRIPTION:
51# this function can be used to determine if ghc itself 66# this function can be used to determine if ghc itself
52# uses the Cabal package format; it has nothing to do 67# uses the Cabal package format; it has nothing to do
53# with the Cabal libraries ... ghc uses the Cabal package 68# with the Cabal libraries ... ghc uses the Cabal package
54# format since version 6.4 69# format since version 6.4
55ghc-cabal() { 70ghc-cabal() {
56 version_is_at_least "6.4" "$(ghc-version)" 71 version_is_at_least "6.4" "$(ghc-version)"
57} 72}
58 73
74# @FUNCTION: ghc-bestcabalversion
75# @DESCRIPTION:
59# return the best version of the Cabal library that is available 76# return the best version of the Cabal library that is available
60ghc-bestcabalversion() { 77ghc-bestcabalversion() {
61 local cabalpackage
62 local cabalversion 78 local cabalversion
63 if ghc-cabal; then 79 if ghc-cabal; then
64 # Try if ghc-pkg can determine the latest version. 80 # We ask portage, not ghc, so that we only pick up
65 # If not, use portage. 81 # portage-installed cabal versions.
66 cabalpackage="$($(ghc-getghcpkg) latest Cabal 2> /dev/null)" 82 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
67 if [[ $? -eq 0 ]]; then
68 cabalversion="${cabalpackage#Cabal-}"
69 else
70 cabalpackage="$(best_version cabal)"
71 cabalversion="${cabalpackage#dev-haskell/cabal-}"
72 cabalversion="${cabalversion%-r*}"
73 cabalversion="${cabalversion%_pre*}"
74 fi
75 echo "Cabal-${cabalversion}" 83 echo "Cabal-${cabalversion}"
76 else 84 else
77 # older ghc's don't support package versioning 85 # older ghc's don't support package versioning
78 echo Cabal 86 echo Cabal
79 fi 87 fi
80} 88}
81 89
90# @FUNCTION: ghc-sanecabal
91# @DESCRIPTION:
82# check if a standalone Cabal version is available for the 92# check if a standalone Cabal version is available for the
83# currently used ghc; takes minimal version of Cabal as 93# currently used ghc; takes minimal version of Cabal as
84# an optional argument 94# an optional argument
85ghc-sanecabal() { 95ghc-sanecabal() {
86 local f 96 local f
… …
90 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return 100 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
91 done 101 done
92 return 1 102 return 1
93} 103}
94 104
105# @FUNCTION: ghc-saneghc
106# @DESCRIPTION:
107# checks if ghc and ghc-bin are installed in the same version
108# (if they're both installed); if this is not the case, we
109# unfortunately cannot trust portage's dependency resolution
110ghc-saneghc() {
111 local ghcversion
112 local ghcbinversion
113 if [[ "${PN}" == "ghc" || "${PN}" == "ghc-bin" ]]; then
114 return
115 fi
116 if has_version dev-lang/ghc && has_version dev-lang/ghc-bin; then
117 ghcversion="$(ghc-extractportageversion dev-lang/ghc)"
118 ghcbinversion="$(ghc-extractportageversion dev-lang/ghc-bin)"
119 if [[ "${ghcversion}" != "${ghcbinversion}" ]]; then
120 return 1
121 fi
122 fi
123 return
124}
125
126# @FUNCTION: ghc-extractportageversion
127# @DESCRIPTION:
128# extract the version of a portage-installed package
129ghc-extractportageversion() {
130 local pkg
131 local version
132 pkg="$(best_version $1)"
133 version="${pkg#$1-}"
134 version="${version%-r*}"
135 version="${version%_pre*}"
136 echo "${version}"
137}
138
139# @FUNCTION: ghc-libdir
140# @DESCRIPTION:
95# returns the library directory 141# returns the library directory
96_GHC_LIBDIR_CACHE="" 142_GHC_LIBDIR_CACHE=""
97ghc-libdir() { 143ghc-libdir() {
98 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then 144 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
99 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" 145 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
100 fi 146 fi
101 echo "${_GHC_LIBDIR_CACHE}" 147 echo "${_GHC_LIBDIR_CACHE}"
102} 148}
103 149
150# @FUNCTION: ghc-confdir
151# @DESCRIPTION:
104# returns the (Gentoo) library configuration directory 152# returns the (Gentoo) library configuration directory
105ghc-confdir() { 153ghc-confdir() {
106 echo "$(ghc-libdir)/gentoo" 154 echo "$(ghc-libdir)/gentoo"
107} 155}
108 156
157# @FUNCTION: ghc-localpkgconf
158# @DESCRIPTION:
109# returns the name of the local (package-specific) 159# returns the name of the local (package-specific)
110# package configuration file 160# package configuration file
111ghc-localpkgconf() { 161ghc-localpkgconf() {
112 echo "${PF}.conf" 162 echo "${PF}.conf"
113} 163}
114 164
165# @FUNCTION: ghc-makeghcilib
166# @DESCRIPTION:
115# make a ghci foo.o file from a libfoo.a file 167# make a ghci foo.o file from a libfoo.a file
116ghc-makeghcilib() { 168ghc-makeghcilib() {
117 local outfile 169 local outfile
118 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 170 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
119 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" 171 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
120} 172}
121 173
174# @FUNCTION: ghc-makeghcilib
175# @DESCRIPTION:
122# tests if a ghc package exists 176# tests if a ghc package exists
123ghc-package-exists() { 177ghc-package-exists() {
178 local describe_flag
179 if version_is_at_least "6.4" "$(ghc-version)"; then
180 describe_flag="describe"
181 else
182 describe_flag="--show-package"
183 fi
184
124 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 185 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
125} 186}
126 187
188# @FUNCTION: ghc-setup-pkg
189# @DESCRIPTION:
127# creates a local (package-specific) package 190# creates a local (package-specific) package
128# configuration file; the arguments should be 191# configuration file; the arguments should be
129# uninstalled package description files, each 192# uninstalled package description files, each
130# containing a single package description; if 193# containing a single package description; if
131# no arguments are given, the resulting file is 194# no arguments are given, the resulting file is
132# empty 195# empty
133ghc-setup-pkg() { 196ghc-setup-pkg() {
134 local localpkgconf 197 local localpkgconf
135 localpkgconf="${S}/$(ghc-localpkgconf)" 198 localpkgconf="${S}/$(ghc-localpkgconf)"
136 echo '[]' > "${localpkgconf}" 199 echo '[]' > "${localpkgconf}"
200 local update_flag
201 if version_is_at_least "6.4" "$(ghc-version)"; then
202 update_flag="update -"
203 else
204 update_flag="--update-package"
205 fi
137 for pkg in $*; do 206 for pkg in $*; do
138 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ 207 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
139 < "${pkg}" || die "failed to register ${pkg}" 208 < "${pkg}" || die "failed to register ${pkg}"
140 done 209 done
141} 210}
142 211
212# @FUNCTION: ghc-fixlibpath
213# @DESCRIPTION:
143# fixes the library and import directories path 214# fixes the library and import directories path
144# of the package configuration file 215# of the package configuration file
145ghc-fixlibpath() { 216ghc-fixlibpath() {
146 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" 217 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
147 if [[ -n "$2" ]]; then 218 if [[ -n "$2" ]]; then
148 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" 219 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
149 fi 220 fi
150} 221}
151 222
223# @FUNCTION: ghc-install-pkg
224# @DESCRIPTION:
152# moves the local (package-specific) package configuration 225# moves the local (package-specific) package configuration
153# file to its final destination 226# file to its final destination
154ghc-install-pkg() { 227ghc-install-pkg() {
155 mkdir -p "${D}/$(ghc-confdir)" 228 mkdir -p "${D}/$(ghc-confdir)"
156 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ 229 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
157 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" 230 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
158} 231}
159 232
233# @FUNCTION: ghc-register-pkg
234# @DESCRIPTION:
160# registers all packages in the local (package-specific) 235# registers all packages in the local (package-specific)
161# package configuration file 236# package configuration file
162ghc-register-pkg() { 237ghc-register-pkg() {
163 local localpkgconf 238 local localpkgconf
164 localpkgconf="$(ghc-confdir)/$1" 239 localpkgconf="$(ghc-confdir)/$1"
240 local update_flag
241 local describe_flag
242 if version_is_at_least "6.4" "$(ghc-version)"; then
243 update_flag="update -"
244 describe_flag="describe"
245 else
246 update_flag="--update-package"
247 describe_flag="--show-package"
248 fi
165 if [[ -f "${localpkgconf}" ]]; then 249 if [[ -f "${localpkgconf}" ]]; then
166 for pkg in $(ghc-listpkg "${localpkgconf}"); do 250 for pkg in $(ghc-listpkg "${localpkgconf}"); do
167 ebegin "Registering ${pkg} " 251 ebegin "Registering ${pkg} "
168 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ 252 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \
169 | $(ghc-getghcpkg) -u --force > /dev/null 253 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null
170 eend $? 254 eend $?
171 done 255 done
172 fi 256 fi
173} 257}
174 258
259# @FUNCTION: ghc-reregister
260# @DESCRIPTION:
175# re-adds all available .conf files to the global 261# re-adds all available .conf files to the global
176# package conf file, to be used on a ghc reinstallation 262# package conf file, to be used on a ghc reinstallation
177ghc-reregister() { 263ghc-reregister() {
264 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
178 einfo "Re-adding packages (may cause several harmless warnings) ..." 265 einfo "Re-adding packages (may cause several harmless warnings) ..."
179 if [ -d "$(ghc-confdir)" ]; then 266 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
180 pushd "$(ghc-confdir)" > /dev/null 267 if [ -d "${CONFDIR}" ]; then
268 pushd "${CONFDIR}" > /dev/null
181 for conf in *.conf; do 269 for conf in *.conf; do
182# einfo "Processing ${conf} ..." 270 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
183 ghc-register-pkg "${conf}"
184 done 271 done
185 popd > /dev/null 272 popd > /dev/null
186 fi 273 fi
187} 274}
188 275
276# @FUNCTION: ghc-unregister-pkg
277# @DESCRIPTION:
189# unregisters a package configuration file 278# unregisters a package configuration file
190# protected are all packages that are still contained in 279# protected are all packages that are still contained in
191# another package configuration file 280# another package configuration file
192ghc-unregister-pkg() { 281ghc-unregister-pkg() {
193 local localpkgconf 282 local localpkgconf
194 local i 283 local i
195 local pkg 284 local pkg
196 local protected 285 local protected
286 local unregister_flag
197 localpkgconf="$(ghc-confdir)/$1" 287 localpkgconf="$(ghc-confdir)/$1"
288
289 if version_is_at_least "6.4" "$(ghc-version)"; then
290 unregister_flag="unregister"
291 else
292 unregister_flag="--remove-package"
293 fi
198 294
199 for i in $(ghc-confdir)/*.conf; do 295 for i in $(ghc-confdir)/*.conf; do
200 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})" 296 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
201 done 297 done
202 # protected now contains the packages that cannot be unregistered yet 298 # protected now contains the packages that cannot be unregistered yet
… …
208 elif ! ghc-package-exists "${pkg}"; then 304 elif ! ghc-package-exists "${pkg}"; then
209 : 305 :
210 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." 306 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
211 else 307 else
212 ebegin "Unregistering ${pkg} " 308 ebegin "Unregistering ${pkg} "
213 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null 309 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
214 eend $? 310 eend $?
215 fi 311 fi
216 done 312 done
217 fi 313 fi
218} 314}
219 315
316# @FUNCTION: ghc-reverse
317# @DESCRIPTION:
220# help-function: reverse a list 318# help-function: reverse a list
221ghc-reverse() { 319ghc-reverse() {
222 local result 320 local result
223 local i 321 local i
224 for i in $1; do 322 for i in $1; do
225 result="${i} ${result}" 323 result="${i} ${result}"
226 done 324 done
227 echo "${result}" 325 echo "${result}"
228} 326}
229 327
328# @FUNCTION: ghc-elem
329# @DESCRIPTION:
230# help-function: element-check 330# help-function: element-check
231ghc-elem() { 331ghc-elem() {
232 local i 332 local i
233 for i in $2; do 333 for i in $2; do
234 [[ "$1" == "${i}" ]] && return 0 334 [[ "$1" == "${i}" ]] && return 0
235 done 335 done
236 return 1 336 return 1
237} 337}
238 338
339# @FUNCTION: ghc-listpkg
340# @DESCRIPTION:
239# show the packages in a package configuration file 341# show the packages in a package configuration file
240ghc-listpkg() { 342ghc-listpkg() {
241 local ghcpkgcall 343 local ghcpkgcall
242 local i 344 local i
345 local extra_flags
346 if version_is_at_least '6.12.3' "$(ghc-version)"; then
347 extra_flags="${extra_flags} -v0"
348 fi
243 for i in $*; do 349 for i in $*; do
244 if ghc-cabal; then 350 if ghc-cabal; then
245 echo $($(ghc-getghcpkg) list -f "${i}") \ 351 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
246 | sed \ 352 | sed \
247 -e "s|^.*${i}:\([^:]*\).*$|\1|" \ 353 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
248 -e "s|/.*$||" \ 354 -e "s|/.*$||" \
249 -e "s|,| |g" -e "s|[()]||g" 355 -e "s|,| |g" -e "s|[(){}]||g"
250 else 356 else
251 echo $($(ghc-getghcpkgbin) -l -f "${i}") \ 357 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
252 | cut -f2 -d':' \ 358 | cut -f2 -d':' \
253 | sed 's:,: :g' 359 | sed 's:,: :g'
254 fi 360 fi
255 done 361 done
256} 362}
257 363
364# @FUNCTION: ghc-package_pkg_setup
365# @DESCRIPTION:
366# exported function: check if we have a consistent ghc installation
367ghc-package_pkg_setup() {
368 if ! ghc-saneghc; then
369 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin"
370 eerror "installed. Portage currently cannot work correctly with this setup."
371 eerror "There are several possibilities to work around this problem:"
372 eerror "(1) Up/downgrade ghc-bin to the same version as ghc."
373 eerror "(2) Unmerge ghc-bin."
374 eerror "(3) Unmerge ghc."
375 eerror "You probably want option 1 or 2."
376 die "Inconsistent versions of ghc and ghc-bin."
377 fi
378}
379
380# @FUNCTION: ghc-package_pkg_postinst
381# @DESCRIPTION:
258# exported function: registers the package-specific package 382# exported function: registers the package-specific package
259# configuration file 383# configuration file
260ghc-package_pkg_postinst() { 384ghc-package_pkg_postinst() {
261 ghc-register-pkg "$(ghc-localpkgconf)" 385 ghc-register-pkg "$(ghc-localpkgconf)"
262} 386}
263 387
388# @FUNCTION: ghc-package_pkg_prerm
389# @DESCRIPTION:
264# exported function: unregisters the package-specific package 390# exported function: unregisters the package-specific package
265# configuration file; a package contained therein is unregistered 391# configuration file; a package contained therein is unregistered
266# only if it the same package is not also contained in another 392# only if it the same package is not also contained in another
267# package configuration file ... 393# package configuration file ...
268ghc-package_pkg_prerm() { 394ghc-package_pkg_prerm() {
269 ghc-unregister-pkg "$(ghc-localpkgconf)" 395 ghc-unregister-pkg "$(ghc-localpkgconf)"
270} 396}
271 397
272EXPORT_FUNCTIONS pkg_postinst pkg_prerm 398EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm
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