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Revision 1.34 - (hide annotations) (download)
Fri Sep 14 02:51:23 2012 UTC (2 years 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 slyfox 1.33 # Copyright 1999-2012 Gentoo Foundation
2 kosmikus 1.1 # Distributed under the terms of the GNU General Public License v2
3 gienah 1.34 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.33 2012/04/09 18:08:45 slyfox Exp $
4 vapier 1.31
5 slyfox 1.29 # @ECLASS: ghc-package.eclass
6     # @MAINTAINER:
7     # "Gentoo's Haskell Language team" <haskell@gentoo.org>
8 vapier 1.31 # @AUTHOR:
9 slyfox 1.29 # 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 kosmikus 1.1
14 kosmikus 1.6 inherit versionator
15    
16 slyfox 1.29 # @FUNCTION: ghc-getghc
17     # @DESCRIPTION:
18 kosmikus 1.1 # returns the name of the ghc executable
19     ghc-getghc() {
20 kosmikus 1.22 type -P ghc
21 kosmikus 1.1 }
22    
23 slyfox 1.29 # @FUNCTION: ghc-getghcpkg
24     # @DESCRIPTION:
25     # Internal function determines returns the name of the ghc-pkg executable
26 kosmikus 1.1 ghc-getghcpkg() {
27 kosmikus 1.22 type -P ghc-pkg
28 kosmikus 1.1 }
29    
30 slyfox 1.29 # @FUNCTION: ghc-getghcpkgbin
31     # @DESCRIPTION:
32 kosmikus 1.1 # returns the name of the ghc-pkg binary (ghc-pkg
33     # itself usually is a shell script, and we have to
34 kosmikus 1.6 # bypass the script under certain circumstances);
35 kosmikus 1.15 # for Cabal, we add an empty global package config file,
36     # because for some reason the global package file
37     # must be specified
38 kosmikus 1.1 ghc-getghcpkgbin() {
39 slyfox 1.33 # 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 '[]' > "${T}/empty.conf"
42 gienah 1.34 if version_is_at_least "7.5.20120516" "$(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 kosmikus 1.1 }
48    
49 slyfox 1.29 # @FUNCTION: ghc-version
50     # @DESCRIPTION:
51 kosmikus 1.1 # returns the version of ghc
52 kosmikus 1.6 _GHC_VERSION_CACHE=""
53 kosmikus 1.1 ghc-version() {
54 kosmikus 1.6 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
55 dcoutts 1.16 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
56 kosmikus 1.6 fi
57     echo "${_GHC_VERSION_CACHE}"
58     }
59    
60 slyfox 1.29 # @FUNCTION: ghc-bestcabalversion
61     # @DESCRIPTION:
62 kosmikus 1.15 # return the best version of the Cabal library that is available
63     ghc-bestcabalversion() {
64 slyfox 1.33 # 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 kosmikus 1.15 }
69    
70 slyfox 1.29 # @FUNCTION: ghc-sanecabal
71     # @DESCRIPTION:
72 kosmikus 1.15 # 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 slyfox 1.30 # @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     $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
91     }
92    
93 slyfox 1.29 # @FUNCTION: ghc-extractportageversion
94     # @DESCRIPTION:
95 dcoutts 1.23 # extract the version of a portage-installed package
96     ghc-extractportageversion() {
97     local pkg
98     local version
99     pkg="$(best_version $1)"
100     version="${pkg#$1-}"
101     version="${version%-r*}"
102     version="${version%_pre*}"
103     echo "${version}"
104     }
105    
106 slyfox 1.29 # @FUNCTION: ghc-libdir
107     # @DESCRIPTION:
108 kosmikus 1.1 # returns the library directory
109 kosmikus 1.6 _GHC_LIBDIR_CACHE=""
110 kosmikus 1.1 ghc-libdir() {
111 kosmikus 1.6 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
112     _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
113     fi
114     echo "${_GHC_LIBDIR_CACHE}"
115 kosmikus 1.1 }
116    
117 slyfox 1.29 # @FUNCTION: ghc-confdir
118     # @DESCRIPTION:
119 kosmikus 1.1 # returns the (Gentoo) library configuration directory
120     ghc-confdir() {
121 kosmikus 1.15 echo "$(ghc-libdir)/gentoo"
122 kosmikus 1.1 }
123    
124 slyfox 1.29 # @FUNCTION: ghc-localpkgconf
125     # @DESCRIPTION:
126 kosmikus 1.1 # returns the name of the local (package-specific)
127     # package configuration file
128     ghc-localpkgconf() {
129     echo "${PF}.conf"
130     }
131    
132 slyfox 1.29 # @FUNCTION: ghc-makeghcilib
133     # @DESCRIPTION:
134 kosmikus 1.3 # 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$:\1.o:')"
138 kosmikus 1.15 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
139     }
140    
141 vapier 1.32 # @FUNCTION: ghc-package-exists
142 slyfox 1.29 # @DESCRIPTION:
143 kosmikus 1.15 # tests if a ghc package exists
144     ghc-package-exists() {
145 slyfox 1.33 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
146 kosmikus 1.3 }
147    
148 slyfox 1.29 # @FUNCTION: ghc-setup-pkg
149     # @DESCRIPTION:
150 kosmikus 1.3 # creates a local (package-specific) package
151     # configuration file; the arguments should be
152     # uninstalled package description files, each
153     # containing a single package description; if
154     # no arguments are given, the resulting file is
155     # empty
156 kosmikus 1.1 ghc-setup-pkg() {
157 slyfox 1.33 local localpkgconf="${S}/$(ghc-localpkgconf)"
158 kosmikus 1.15 echo '[]' > "${localpkgconf}"
159 slyfox 1.33
160 dcoutts 1.10 for pkg in $*; do
161 slyfox 1.33 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
162 kosmikus 1.15 < "${pkg}" || die "failed to register ${pkg}"
163 kosmikus 1.3 done
164 kosmikus 1.1 }
165    
166 slyfox 1.29 # @FUNCTION: ghc-fixlibpath
167     # @DESCRIPTION:
168 araujo 1.9 # fixes the library and import directories path
169     # of the package configuration file
170     ghc-fixlibpath() {
171 kosmikus 1.15 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
172 araujo 1.9 if [[ -n "$2" ]]; then
173 kosmikus 1.15 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
174 araujo 1.9 fi
175     }
176    
177 slyfox 1.29 # @FUNCTION: ghc-install-pkg
178     # @DESCRIPTION:
179 kosmikus 1.1 # moves the local (package-specific) package configuration
180     # file to its final destination
181     ghc-install-pkg() {
182 kosmikus 1.15 mkdir -p "${D}/$(ghc-confdir)"
183     cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
184     > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
185 kosmikus 1.1 }
186    
187 slyfox 1.29 # @FUNCTION: ghc-register-pkg
188     # @DESCRIPTION:
189 kosmikus 1.1 # registers all packages in the local (package-specific)
190     # package configuration file
191     ghc-register-pkg() {
192 slyfox 1.33 local localpkgconf="$(ghc-confdir)/$1"
193    
194 kosmikus 1.15 if [[ -f "${localpkgconf}" ]]; then
195     for pkg in $(ghc-listpkg "${localpkgconf}"); do
196 kosmikus 1.8 ebegin "Registering ${pkg} "
197 slyfox 1.33 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
198     | $(ghc-getghcpkg) update - --force > /dev/null
199 kosmikus 1.8 eend $?
200 kosmikus 1.7 done
201     fi
202 kosmikus 1.1 }
203    
204 slyfox 1.29 # @FUNCTION: ghc-reregister
205     # @DESCRIPTION:
206 kosmikus 1.1 # re-adds all available .conf files to the global
207     # package conf file, to be used on a ghc reinstallation
208     ghc-reregister() {
209 slyfox 1.29 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
210 kosmikus 1.15 einfo "Re-adding packages (may cause several harmless warnings) ..."
211 slyfox 1.29 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
212 kolmodin 1.27 if [ -d "${CONFDIR}" ]; then
213     pushd "${CONFDIR}" > /dev/null
214 kosmikus 1.5 for conf in *.conf; do
215 slyfox 1.29 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
216 kosmikus 1.5 done
217 kosmikus 1.8 popd > /dev/null
218 kosmikus 1.5 fi
219 kosmikus 1.1 }
220    
221 slyfox 1.29 # @FUNCTION: ghc-unregister-pkg
222     # @DESCRIPTION:
223 kosmikus 1.15 # unregisters a package configuration file
224     # protected are all packages that are still contained in
225     # another package configuration file
226 kosmikus 1.1 ghc-unregister-pkg() {
227 slyfox 1.33 local localpkgconf="$(ghc-confdir)/$1"
228 kosmikus 1.15 local i
229     local pkg
230 kolmodin 1.27
231 kosmikus 1.15 if [[ -f "${localpkgconf}" ]]; then
232 kosmikus 1.7 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
233 slyfox 1.30 if ! ghc-package-exists "${pkg}"; then
234     einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
235     else
236     ebegin "Unregistering ${pkg} "
237 slyfox 1.33 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
238 slyfox 1.30 eend $?
239     fi
240 kosmikus 1.7 done
241     fi
242 kosmikus 1.1 }
243    
244 slyfox 1.29 # @FUNCTION: ghc-reverse
245     # @DESCRIPTION:
246 kosmikus 1.1 # help-function: reverse a list
247     ghc-reverse() {
248     local result
249 kosmikus 1.15 local i
250 kosmikus 1.1 for i in $1; do
251     result="${i} ${result}"
252     done
253 kosmikus 1.15 echo "${result}"
254     }
255    
256 slyfox 1.29 # @FUNCTION: ghc-elem
257     # @DESCRIPTION:
258 kosmikus 1.15 # 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 kosmikus 1.1 }
266    
267 slyfox 1.29 # @FUNCTION: ghc-listpkg
268     # @DESCRIPTION:
269 kosmikus 1.1 # show the packages in a package configuration file
270     ghc-listpkg() {
271 kosmikus 1.6 local ghcpkgcall
272 kosmikus 1.15 local i
273 kolmodin 1.28 local extra_flags
274     if version_is_at_least '6.12.3' "$(ghc-version)"; then
275     extra_flags="${extra_flags} -v0"
276     fi
277 kosmikus 1.15 for i in $*; do
278 slyfox 1.33 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 kosmikus 1.15 done
284 kosmikus 1.1 }
285    
286 slyfox 1.29 # @FUNCTION: ghc-package_pkg_postinst
287     # @DESCRIPTION:
288 kosmikus 1.1 # exported function: registers the package-specific package
289     # configuration file
290     ghc-package_pkg_postinst() {
291 kosmikus 1.15 ghc-register-pkg "$(ghc-localpkgconf)"
292 kosmikus 1.1 }
293    
294 slyfox 1.29 # @FUNCTION: ghc-package_pkg_prerm
295     # @DESCRIPTION:
296 kosmikus 1.15 # exported function: unregisters the package-specific package
297     # configuration file; a package contained therein is unregistered
298     # only if it the same package is not also contained in another
299     # package configuration file ...
300 kosmikus 1.1 ghc-package_pkg_prerm() {
301 kosmikus 1.15 ghc-unregister-pkg "$(ghc-localpkgconf)"
302 kosmikus 1.1 }
303    
304 slyfox 1.33 EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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