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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 1.29 2011/03/13 20:12:13 slyfox Exp $
4# 4#
5# Author: Andres Loeh <kosmikus@gentoo.org> 5# @ECLASS: ghc-package.eclass
6# @MAINTAINER:
7# "Gentoo's Haskell Language team" <haskell@gentoo.org>
6# 8#
9# Original Author: Andres Loeh <kosmikus@gentoo.org>
10#
7# This eclass helps with the Glasgow Haskell Compiler's package 11# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
8# configuration utility. 12# @DESCRIPTION:
13# Helper eclass to handle ghc installation/upgrade/deinstallation process.
9 14
10ECLASS="ghc-package" 15inherit versionator
11INHERITED="$INHERITED $ECLASS"
12 16
13PATH="${PATH}:/opt/ghc/bin" 17# @FUNCTION: ghc-getghc
14 18# @DESCRIPTION:
15# for later configuration using environment variables/
16# returns the name of the ghc executable 19# returns the name of the ghc executable
17ghc-getghc() { 20ghc-getghc() {
18 echo "ghc" 21 type -P ghc
19} 22}
20 23
24# @FUNCTION: ghc-getghcpkg
25# @DESCRIPTION:
21# returns the name of the ghc-pkg executable 26# Internal function determines returns the name of the ghc-pkg executable
22ghc-getghcpkg() { 27ghc-getghcpkg() {
23 echo "ghc-pkg" 28 type -P ghc-pkg
24} 29}
25 30
31# @FUNCTION: ghc-getghcpkgbin
32# @DESCRIPTION:
26# returns the name of the ghc-pkg binary (ghc-pkg 33# returns the name of the ghc-pkg binary (ghc-pkg
27# itself usually is a shell script, and we have to 34# itself usually is a shell script, and we have to
28# bypass the script under certain circumstances) 35# bypass the script under certain circumstances);
36# for Cabal, we add an empty global package config file,
37# because for some reason the global package file
38# must be specified
29ghc-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"
45 elif ghc-cabal; then
46 echo '[]' > "${T}/empty.conf"
47 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
48 else
30 echo $(ghc-libdir)/"ghc-pkg.bin" 49 echo "$(ghc-libdir)/ghc-pkg.bin"
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 "${_GHC_VERSION_CACHE}"
36} 62}
37 63
64# @FUNCTION: ghc-cabal
65# @DESCRIPTION:
66# this function can be used to determine if ghc itself
67# uses the Cabal package format; it has nothing to do
68# with the Cabal libraries ... ghc uses the Cabal package
69# format since version 6.4
70ghc-cabal() {
71 version_is_at_least "6.4" "$(ghc-version)"
72}
73
74# @FUNCTION: ghc-bestcabalversion
75# @DESCRIPTION:
76# return the best version of the Cabal library that is available
77ghc-bestcabalversion() {
78 local cabalversion
79 if ghc-cabal; then
80 # We ask portage, not ghc, so that we only pick up
81 # portage-installed cabal versions.
82 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
83 echo "Cabal-${cabalversion}"
84 else
85 # older ghc's don't support package versioning
86 echo Cabal
87 fi
88}
89
90# @FUNCTION: ghc-sanecabal
91# @DESCRIPTION:
92# check if a standalone Cabal version is available for the
93# currently used ghc; takes minimal version of Cabal as
94# an optional argument
95ghc-sanecabal() {
96 local f
97 local version
98 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
99 for f in $(ghc-confdir)/cabal-*; do
100 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
101 done
102 return 1
103}
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:
38# returns the library directory 141# returns the library directory
142_GHC_LIBDIR_CACHE=""
39ghc-libdir() { 143ghc-libdir() {
40 $(ghc-getghc) --print-libdir 144 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
145 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
146 fi
147 echo "${_GHC_LIBDIR_CACHE}"
41} 148}
42 149
150# @FUNCTION: ghc-confdir
151# @DESCRIPTION:
43# returns the (Gentoo) library configuration directory 152# returns the (Gentoo) library configuration directory
44ghc-confdir() { 153ghc-confdir() {
45 echo $(ghc-libdir)/gentoo 154 echo "$(ghc-libdir)/gentoo"
46} 155}
47 156
157# @FUNCTION: ghc-localpkgconf
158# @DESCRIPTION:
48# returns the name of the local (package-specific) 159# returns the name of the local (package-specific)
49# package configuration file 160# package configuration file
50ghc-localpkgconf() { 161ghc-localpkgconf() {
51 echo "${PF}.conf" 162 echo "${PF}.conf"
52} 163}
53 164
165# @FUNCTION: ghc-makeghcilib
166# @DESCRIPTION:
54# make a ghci foo.o file from a libfoo.a file 167# make a ghci foo.o file from a libfoo.a file
55ghc-makeghcilib() { 168ghc-makeghcilib() {
56 local outfile 169 local outfile
57 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 170 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
58 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 171 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
59} 172}
60 173
174# @FUNCTION: ghc-makeghcilib
175# @DESCRIPTION:
176# tests if a ghc package exists
177ghc-package-exists() {
178 local describe_flag
179 if version_is_at_least "6.4" "$(ghc-version)"; then
180 describe_flag="describe"
181 else
182 describe_flag="--show-package"
183 fi
184
185 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
186}
187
188# @FUNCTION: ghc-setup-pkg
189# @DESCRIPTION:
61# creates a local (package-specific) package 190# creates a local (package-specific) package
62# configuration file; the arguments should be 191# configuration file; the arguments should be
63# uninstalled package description files, each 192# uninstalled package description files, each
64# containing a single package description; if 193# containing a single package description; if
65# no arguments are given, the resulting file is 194# no arguments are given, the resulting file is
66# empty 195# empty
67ghc-setup-pkg() { 196ghc-setup-pkg() {
68 local localpkgconf 197 local localpkgconf
69 localpkgconf="${S}/$(ghc-localpkgconf)" 198 localpkgconf="${S}/$(ghc-localpkgconf)"
70 echo '[' > ${localpkgconf} 199 echo '[]' > "${localpkgconf}"
71 while [ -n "$1" ]; do 200 local update_flag
72 cat "$1" >> ${localpkgconf} 201 if version_is_at_least "6.4" "$(ghc-version)"; then
73 shift 202 update_flag="update -"
74 [ -n "$1" ] && echo ',' >> ${localpkgconf} 203 else
204 update_flag="--update-package"
205 fi
206 for pkg in $*; do
207 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
208 < "${pkg}" || die "failed to register ${pkg}"
75 done 209 done
76 echo ']' >> ${localpkgconf}
77} 210}
78 211
212# @FUNCTION: ghc-fixlibpath
213# @DESCRIPTION:
214# fixes the library and import directories path
215# of the package configuration file
216ghc-fixlibpath() {
217 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
218 if [[ -n "$2" ]]; then
219 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
220 fi
221}
222
223# @FUNCTION: ghc-install-pkg
224# @DESCRIPTION:
79# moves the local (package-specific) package configuration 225# moves the local (package-specific) package configuration
80# file to its final destination 226# file to its final destination
81ghc-install-pkg() { 227ghc-install-pkg() {
82 mkdir -p ${D}/$(ghc-confdir) 228 mkdir -p "${D}/$(ghc-confdir)"
83 cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \ 229 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
84 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 230 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
85} 231}
86 232
233# @FUNCTION: ghc-register-pkg
234# @DESCRIPTION:
87# registers all packages in the local (package-specific) 235# registers all packages in the local (package-specific)
88# package configuration file 236# package configuration file
89ghc-register-pkg() { 237ghc-register-pkg() {
90 local localpkgconf 238 local localpkgconf
91 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
249 if [[ -f "${localpkgconf}" ]]; then
92 for pkg in $(ghc-listpkg ${localpkgconf}); do 250 for pkg in $(ghc-listpkg "${localpkgconf}"); do
93 einfo "Registering ${pkg} ..." 251 ebegin "Registering ${pkg} "
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 252 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \
95 | $(ghc-getghcpkg) -u --force 253 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null
254 eend $?
96 done 255 done
256 fi
97} 257}
98 258
259# @FUNCTION: ghc-reregister
260# @DESCRIPTION:
99# re-adds all available .conf files to the global 261# re-adds all available .conf files to the global
100# package conf file, to be used on a ghc reinstallation 262# package conf file, to be used on a ghc reinstallation
101ghc-reregister() { 263ghc-reregister() {
102 einfo "Re-adding packages ..." 264 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
103 ewarn "This may cause several warnings, but they should be harmless." 265 einfo "Re-adding packages (may cause several harmless warnings) ..."
104 pushd $(ghc-confdir) 266 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
267 if [ -d "${CONFDIR}" ]; then
268 pushd "${CONFDIR}" > /dev/null
105 for conf in *.conf; do 269 for conf in *.conf; do
106 einfo "Processing ${conf} ..." 270 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
107 ghc-register-pkg ${conf}
108 done 271 done
109 popd 272 popd > /dev/null
273 fi
110} 274}
111 275
112# unregisters ... 276# @FUNCTION: ghc-unregister-pkg
277# @DESCRIPTION:
278# unregisters a package configuration file
279# protected are all packages that are still contained in
280# another package configuration file
113ghc-unregister-pkg() { 281ghc-unregister-pkg() {
114 local localpkgconf 282 local localpkgconf
283 local i
284 local pkg
285 local protected
286 local unregister_flag
115 localpkgconf="$(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
294
295 for i in $(ghc-confdir)/*.conf; do
296 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
297 done
298 # protected now contains the packages that cannot be unregistered yet
299
300 if [[ -f "${localpkgconf}" ]]; then
116 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 301 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
302 if $(ghc-elem "${pkg}" "${protected}"); then
303 einfo "Package ${pkg} is protected."
304 elif ! ghc-package-exists "${pkg}"; then
305 :
306 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
307 else
117 einfo "Unregistering ${pkg} ..." 308 ebegin "Unregistering ${pkg} "
118 $(ghc-getghcpkg) -r ${pkg} --force 309 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
310 eend $?
311 fi
119 done 312 done
313 fi
120} 314}
121 315
316# @FUNCTION: ghc-reverse
317# @DESCRIPTION:
122# help-function: reverse a list 318# help-function: reverse a list
123ghc-reverse() { 319ghc-reverse() {
124 local result 320 local result
321 local i
125 for i in $1; do 322 for i in $1; do
126 result="${i} ${result}" 323 result="${i} ${result}"
127 done 324 done
128 echo ${result} 325 echo "${result}"
129} 326}
130 327
328# @FUNCTION: ghc-elem
329# @DESCRIPTION:
330# help-function: element-check
331ghc-elem() {
332 local i
333 for i in $2; do
334 [[ "$1" == "${i}" ]] && return 0
335 done
336 return 1
337}
338
339# @FUNCTION: ghc-listpkg
340# @DESCRIPTION:
131# show the packages in a package configuration file 341# show the packages in a package configuration file
132ghc-listpkg() { 342ghc-listpkg() {
343 local ghcpkgcall
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
349 for i in $*; do
350 if ghc-cabal; then
351 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
352 | sed \
353 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
354 -e "s|/.*$||" \
355 -e "s|,| |g" -e "s|[(){}]||g"
356 else
133 [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ 357 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
134 | cut -f2 -d':' \ 358 | cut -f2 -d':' \
135 | sed 's:,: :g' 359 | sed 's:,: :g'
360 fi
361 done
136} 362}
137 363
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:
138# exported function: registers the package-specific package 382# exported function: registers the package-specific package
139# configuration file 383# configuration file
140ghc-package_pkg_postinst() { 384ghc-package_pkg_postinst() {
141 ghc-register-pkg $(ghc-localpkgconf) 385 ghc-register-pkg "$(ghc-localpkgconf)"
142} 386}
143 387
388# @FUNCTION: ghc-package_pkg_prerm
389# @DESCRIPTION:
144# exported function: unregisters the package-specific 390# exported function: unregisters the package-specific package
145# package configuration file, under the condition that 391# configuration file; a package contained therein is unregistered
146# after removal, no other instances of the package will 392# only if it the same package is not also contained in another
147# be left (necessary check because ghc packages are not 393# package configuration file ...
148# versioned)
149ghc-package_pkg_prerm() { 394ghc-package_pkg_prerm() {
150 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
151 || ghc-unregister-pkg $(ghc-localpkgconf) 395 ghc-unregister-pkg "$(ghc-localpkgconf)"
152} 396}
153 397
154EXPORT_FUNCTIONS pkg_postinst pkg_prerm 398EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm

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