/[gentoo-x86]/eclass/ghc-package.eclass
Gentoo

Contents of /eclass/ghc-package.eclass

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.34 - (show annotations) (download)
Fri Sep 14 02:51:23 2012 UTC (2 years, 3 months ago) by gienah
Branch: MAIN
Changes since 1.33: +6 -2 lines
ghc-pkg --global-conf parameter is renamed to --global-package-db in ghc 7.6.1

1 # Copyright 1999-2012 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.33 2012/04/09 18:08:45 slyfox Exp $
4
5 # @ECLASS: ghc-package.eclass
6 # @MAINTAINER:
7 # "Gentoo's Haskell Language team" <haskell@gentoo.org>
8 # @AUTHOR:
9 # Original Author: Andres Loeh <kosmikus@gentoo.org>
10 # @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
11 # @DESCRIPTION:
12 # Helper eclass to handle ghc installation/upgrade/deinstallation process.
13
14 inherit versionator
15
16 # @FUNCTION: ghc-getghc
17 # @DESCRIPTION:
18 # returns the name of the ghc executable
19 ghc-getghc() {
20 type -P ghc
21 }
22
23 # @FUNCTION: ghc-getghcpkg
24 # @DESCRIPTION:
25 # Internal function determines returns the name of the ghc-pkg executable
26 ghc-getghcpkg() {
27 type -P ghc-pkg
28 }
29
30 # @FUNCTION: ghc-getghcpkgbin
31 # @DESCRIPTION:
32 # returns the name of the ghc-pkg binary (ghc-pkg
33 # itself usually is a shell script, and we have to
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
38 ghc-getghcpkgbin() {
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 '[]' > "${T}/empty.conf"
42 if version_is_at_least "7.5.20120516" "$(ghc-version)"; then
43 echo "$(ghc-libdir)/ghc-pkg" "--global-package-db=${T}/empty.conf"
44 else
45 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
46 fi
47 }
48
49 # @FUNCTION: ghc-version
50 # @DESCRIPTION:
51 # returns the version of ghc
52 _GHC_VERSION_CACHE=""
53 ghc-version() {
54 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
55 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
56 fi
57 echo "${_GHC_VERSION_CACHE}"
58 }
59
60 # @FUNCTION: ghc-bestcabalversion
61 # @DESCRIPTION:
62 # return the best version of the Cabal library that is available
63 ghc-bestcabalversion() {
64 # We ask portage, not ghc, so that we only pick up
65 # portage-installed cabal versions.
66 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
67 echo "Cabal-${cabalversion}"
68 }
69
70 # @FUNCTION: ghc-sanecabal
71 # @DESCRIPTION:
72 # check if a standalone Cabal version is available for the
73 # currently used ghc; takes minimal version of Cabal as
74 # an optional argument
75 ghc-sanecabal() {
76 local f
77 local version
78 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
79 for f in $(ghc-confdir)/cabal-*; do
80 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
81 done
82 return 1
83 }
84
85 # @FUNCTION: ghc-supports-shared-libraries
86 # @DESCRIPTION:
87 # checks if ghc is built with support for building
88 # shared libraries (aka '-dynamic' option)
89 ghc-supports-shared-libraries() {
90 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
91 }
92
93 # @FUNCTION: ghc-extractportageversion
94 # @DESCRIPTION:
95 # extract the version of a portage-installed package
96 ghc-extractportageversion() {
97 local pkg
98 local version
99 pkg="$(best_version $1)"
100 version="${pkg#$1-}"
101 version="${version%-r*}"
102 version="${version%_pre*}"
103 echo "${version}"
104 }
105
106 # @FUNCTION: ghc-libdir
107 # @DESCRIPTION:
108 # returns the library directory
109 _GHC_LIBDIR_CACHE=""
110 ghc-libdir() {
111 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
112 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
113 fi
114 echo "${_GHC_LIBDIR_CACHE}"
115 }
116
117 # @FUNCTION: ghc-confdir
118 # @DESCRIPTION:
119 # returns the (Gentoo) library configuration directory
120 ghc-confdir() {
121 echo "$(ghc-libdir)/gentoo"
122 }
123
124 # @FUNCTION: ghc-localpkgconf
125 # @DESCRIPTION:
126 # returns the name of the local (package-specific)
127 # package configuration file
128 ghc-localpkgconf() {
129 echo "${PF}.conf"
130 }
131
132 # @FUNCTION: ghc-makeghcilib
133 # @DESCRIPTION:
134 # make a ghci foo.o file from a libfoo.a file
135 ghc-makeghcilib() {
136 local outfile
137 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
138 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
139 }
140
141 # @FUNCTION: ghc-package-exists
142 # @DESCRIPTION:
143 # tests if a ghc package exists
144 ghc-package-exists() {
145 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
146 }
147
148 # @FUNCTION: ghc-setup-pkg
149 # @DESCRIPTION:
150 # creates a local (package-specific) package
151 # configuration file; the arguments should be
152 # uninstalled package description files, each
153 # containing a single package description; if
154 # no arguments are given, the resulting file is
155 # empty
156 ghc-setup-pkg() {
157 local localpkgconf="${S}/$(ghc-localpkgconf)"
158 echo '[]' > "${localpkgconf}"
159
160 for pkg in $*; do
161 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
162 < "${pkg}" || die "failed to register ${pkg}"
163 done
164 }
165
166 # @FUNCTION: ghc-fixlibpath
167 # @DESCRIPTION:
168 # fixes the library and import directories path
169 # of the package configuration file
170 ghc-fixlibpath() {
171 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
172 if [[ -n "$2" ]]; then
173 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
174 fi
175 }
176
177 # @FUNCTION: ghc-install-pkg
178 # @DESCRIPTION:
179 # moves the local (package-specific) package configuration
180 # file to its final destination
181 ghc-install-pkg() {
182 mkdir -p "${D}/$(ghc-confdir)"
183 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
184 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
185 }
186
187 # @FUNCTION: ghc-register-pkg
188 # @DESCRIPTION:
189 # registers all packages in the local (package-specific)
190 # package configuration file
191 ghc-register-pkg() {
192 local localpkgconf="$(ghc-confdir)/$1"
193
194 if [[ -f "${localpkgconf}" ]]; then
195 for pkg in $(ghc-listpkg "${localpkgconf}"); do
196 ebegin "Registering ${pkg} "
197 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
198 | $(ghc-getghcpkg) update - --force > /dev/null
199 eend $?
200 done
201 fi
202 }
203
204 # @FUNCTION: ghc-reregister
205 # @DESCRIPTION:
206 # re-adds all available .conf files to the global
207 # package conf file, to be used on a ghc reinstallation
208 ghc-reregister() {
209 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
210 einfo "Re-adding packages (may cause several harmless warnings) ..."
211 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
212 if [ -d "${CONFDIR}" ]; then
213 pushd "${CONFDIR}" > /dev/null
214 for conf in *.conf; do
215 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
216 done
217 popd > /dev/null
218 fi
219 }
220
221 # @FUNCTION: ghc-unregister-pkg
222 # @DESCRIPTION:
223 # unregisters a package configuration file
224 # protected are all packages that are still contained in
225 # another package configuration file
226 ghc-unregister-pkg() {
227 local localpkgconf="$(ghc-confdir)/$1"
228 local i
229 local pkg
230
231 if [[ -f "${localpkgconf}" ]]; then
232 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
233 if ! ghc-package-exists "${pkg}"; then
234 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
235 else
236 ebegin "Unregistering ${pkg} "
237 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
238 eend $?
239 fi
240 done
241 fi
242 }
243
244 # @FUNCTION: ghc-reverse
245 # @DESCRIPTION:
246 # help-function: reverse a list
247 ghc-reverse() {
248 local result
249 local i
250 for i in $1; do
251 result="${i} ${result}"
252 done
253 echo "${result}"
254 }
255
256 # @FUNCTION: ghc-elem
257 # @DESCRIPTION:
258 # help-function: element-check
259 ghc-elem() {
260 local i
261 for i in $2; do
262 [[ "$1" == "${i}" ]] && return 0
263 done
264 return 1
265 }
266
267 # @FUNCTION: ghc-listpkg
268 # @DESCRIPTION:
269 # show the packages in a package configuration file
270 ghc-listpkg() {
271 local ghcpkgcall
272 local i
273 local extra_flags
274 if version_is_at_least '6.12.3' "$(ghc-version)"; then
275 extra_flags="${extra_flags} -v0"
276 fi
277 for i in $*; do
278 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
279 | sed \
280 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
281 -e "s|/.*$||" \
282 -e "s|,| |g" -e "s|[(){}]||g"
283 done
284 }
285
286 # @FUNCTION: ghc-package_pkg_postinst
287 # @DESCRIPTION:
288 # exported function: registers the package-specific package
289 # configuration file
290 ghc-package_pkg_postinst() {
291 ghc-register-pkg "$(ghc-localpkgconf)"
292 }
293
294 # @FUNCTION: ghc-package_pkg_prerm
295 # @DESCRIPTION:
296 # exported function: unregisters the package-specific package
297 # configuration file; a package contained therein is unregistered
298 # only if it the same package is not also contained in another
299 # package configuration file ...
300 ghc-package_pkg_prerm() {
301 ghc-unregister-pkg "$(ghc-localpkgconf)"
302 }
303
304 EXPORT_FUNCTIONS pkg_postinst pkg_prerm

  ViewVC Help
Powered by ViewVC 1.1.20