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Revision 1.36 - (hide annotations) (download)
Sun Jan 6 13:06:35 2013 UTC (18 months, 2 weeks ago) by slyfox
Branch: MAIN
Changes since 1.35: +10 -2 lines
Added 'ghc-supports-threaded-runtime' function. Removed implicit RDEPEND on 'ghc'.

1 slyfox 1.36 # Copyright 1999-2013 Gentoo Foundation
2 kosmikus 1.1 # Distributed under the terms of the GNU General Public License v2
3 slyfox 1.36 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.35 2012/11/16 15:47:17 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 '[]' > "${T}/empty.conf"
42 slyfox 1.35 if version_is_at_least "7.7.20121101" "$(ghc-version)"; then
43     # was moved to bin/ subtree by:
44     # http://www.haskell.org/pipermail/cvs-ghc/2012-September/076546.html
45     echo "$(ghc-libdir)/bin/ghc-pkg" "--global-package-db=${T}/empty.conf"
46     elif version_is_at_least "7.5.20120516" "$(ghc-version)"; then
47 gienah 1.34 echo "$(ghc-libdir)/ghc-pkg" "--global-package-db=${T}/empty.conf"
48     else
49     echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
50     fi
51 kosmikus 1.1 }
52    
53 slyfox 1.29 # @FUNCTION: ghc-version
54     # @DESCRIPTION:
55 kosmikus 1.1 # returns the version of ghc
56 kosmikus 1.6 _GHC_VERSION_CACHE=""
57 kosmikus 1.1 ghc-version() {
58 kosmikus 1.6 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
59 dcoutts 1.16 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
60 kosmikus 1.6 fi
61     echo "${_GHC_VERSION_CACHE}"
62     }
63    
64 slyfox 1.29 # @FUNCTION: ghc-bestcabalversion
65     # @DESCRIPTION:
66 kosmikus 1.15 # return the best version of the Cabal library that is available
67     ghc-bestcabalversion() {
68 slyfox 1.33 # We ask portage, not ghc, so that we only pick up
69     # portage-installed cabal versions.
70     local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
71     echo "Cabal-${cabalversion}"
72 kosmikus 1.15 }
73    
74 slyfox 1.29 # @FUNCTION: ghc-sanecabal
75     # @DESCRIPTION:
76 kosmikus 1.15 # check if a standalone Cabal version is available for the
77     # currently used ghc; takes minimal version of Cabal as
78     # an optional argument
79     ghc-sanecabal() {
80     local f
81     local version
82     if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
83     for f in $(ghc-confdir)/cabal-*; do
84     [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
85     done
86     return 1
87     }
88    
89 slyfox 1.30 # @FUNCTION: ghc-supports-shared-libraries
90     # @DESCRIPTION:
91     # checks if ghc is built with support for building
92     # shared libraries (aka '-dynamic' option)
93     ghc-supports-shared-libraries() {
94     $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
95     }
96    
97 slyfox 1.36 # @FUNCTION: ghc-supports-threaded-runtime
98     # @DESCRIPTION:
99     # checks if ghc is built with support for threaded
100     # runtime (aka '-threaded' option)
101     ghc-supports-threaded-runtime() {
102     $(ghc-getghc) --info | grep "RTS ways" | grep -q "thr"
103     }
104    
105 slyfox 1.29 # @FUNCTION: ghc-extractportageversion
106     # @DESCRIPTION:
107 dcoutts 1.23 # extract the version of a portage-installed package
108     ghc-extractportageversion() {
109     local pkg
110     local version
111     pkg="$(best_version $1)"
112     version="${pkg#$1-}"
113     version="${version%-r*}"
114     version="${version%_pre*}"
115     echo "${version}"
116     }
117    
118 slyfox 1.29 # @FUNCTION: ghc-libdir
119     # @DESCRIPTION:
120 kosmikus 1.1 # returns the library directory
121 kosmikus 1.6 _GHC_LIBDIR_CACHE=""
122 kosmikus 1.1 ghc-libdir() {
123 kosmikus 1.6 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
124     _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
125     fi
126     echo "${_GHC_LIBDIR_CACHE}"
127 kosmikus 1.1 }
128    
129 slyfox 1.29 # @FUNCTION: ghc-confdir
130     # @DESCRIPTION:
131 kosmikus 1.1 # returns the (Gentoo) library configuration directory
132     ghc-confdir() {
133 kosmikus 1.15 echo "$(ghc-libdir)/gentoo"
134 kosmikus 1.1 }
135    
136 slyfox 1.29 # @FUNCTION: ghc-localpkgconf
137     # @DESCRIPTION:
138 kosmikus 1.1 # returns the name of the local (package-specific)
139     # package configuration file
140     ghc-localpkgconf() {
141     echo "${PF}.conf"
142     }
143    
144 slyfox 1.29 # @FUNCTION: ghc-makeghcilib
145     # @DESCRIPTION:
146 kosmikus 1.3 # make a ghci foo.o file from a libfoo.a file
147     ghc-makeghcilib() {
148     local outfile
149     outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
150 kosmikus 1.15 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
151     }
152    
153 vapier 1.32 # @FUNCTION: ghc-package-exists
154 slyfox 1.29 # @DESCRIPTION:
155 kosmikus 1.15 # tests if a ghc package exists
156     ghc-package-exists() {
157 slyfox 1.33 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
158 kosmikus 1.3 }
159    
160 slyfox 1.29 # @FUNCTION: ghc-setup-pkg
161     # @DESCRIPTION:
162 kosmikus 1.3 # creates a local (package-specific) package
163     # configuration file; the arguments should be
164     # uninstalled package description files, each
165     # containing a single package description; if
166     # no arguments are given, the resulting file is
167     # empty
168 kosmikus 1.1 ghc-setup-pkg() {
169 slyfox 1.33 local localpkgconf="${S}/$(ghc-localpkgconf)"
170 kosmikus 1.15 echo '[]' > "${localpkgconf}"
171 slyfox 1.33
172 dcoutts 1.10 for pkg in $*; do
173 slyfox 1.33 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
174 kosmikus 1.15 < "${pkg}" || die "failed to register ${pkg}"
175 kosmikus 1.3 done
176 kosmikus 1.1 }
177    
178 slyfox 1.29 # @FUNCTION: ghc-fixlibpath
179     # @DESCRIPTION:
180 araujo 1.9 # fixes the library and import directories path
181     # of the package configuration file
182     ghc-fixlibpath() {
183 kosmikus 1.15 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
184 araujo 1.9 if [[ -n "$2" ]]; then
185 kosmikus 1.15 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
186 araujo 1.9 fi
187     }
188    
189 slyfox 1.29 # @FUNCTION: ghc-install-pkg
190     # @DESCRIPTION:
191 kosmikus 1.1 # moves the local (package-specific) package configuration
192     # file to its final destination
193     ghc-install-pkg() {
194 kosmikus 1.15 mkdir -p "${D}/$(ghc-confdir)"
195     cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
196     > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
197 kosmikus 1.1 }
198    
199 slyfox 1.29 # @FUNCTION: ghc-register-pkg
200     # @DESCRIPTION:
201 kosmikus 1.1 # registers all packages in the local (package-specific)
202     # package configuration file
203     ghc-register-pkg() {
204 slyfox 1.33 local localpkgconf="$(ghc-confdir)/$1"
205    
206 kosmikus 1.15 if [[ -f "${localpkgconf}" ]]; then
207     for pkg in $(ghc-listpkg "${localpkgconf}"); do
208 kosmikus 1.8 ebegin "Registering ${pkg} "
209 slyfox 1.33 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
210     | $(ghc-getghcpkg) update - --force > /dev/null
211 kosmikus 1.8 eend $?
212 kosmikus 1.7 done
213     fi
214 kosmikus 1.1 }
215    
216 slyfox 1.29 # @FUNCTION: ghc-reregister
217     # @DESCRIPTION:
218 kosmikus 1.1 # re-adds all available .conf files to the global
219     # package conf file, to be used on a ghc reinstallation
220     ghc-reregister() {
221 slyfox 1.29 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
222 kosmikus 1.15 einfo "Re-adding packages (may cause several harmless warnings) ..."
223 slyfox 1.29 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
224 kolmodin 1.27 if [ -d "${CONFDIR}" ]; then
225     pushd "${CONFDIR}" > /dev/null
226 kosmikus 1.5 for conf in *.conf; do
227 slyfox 1.29 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
228 kosmikus 1.5 done
229 kosmikus 1.8 popd > /dev/null
230 kosmikus 1.5 fi
231 kosmikus 1.1 }
232    
233 slyfox 1.29 # @FUNCTION: ghc-unregister-pkg
234     # @DESCRIPTION:
235 kosmikus 1.15 # unregisters a package configuration file
236     # protected are all packages that are still contained in
237     # another package configuration file
238 kosmikus 1.1 ghc-unregister-pkg() {
239 slyfox 1.33 local localpkgconf="$(ghc-confdir)/$1"
240 kosmikus 1.15 local i
241     local pkg
242 kolmodin 1.27
243 kosmikus 1.15 if [[ -f "${localpkgconf}" ]]; then
244 kosmikus 1.7 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
245 slyfox 1.30 if ! ghc-package-exists "${pkg}"; then
246     einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
247     else
248     ebegin "Unregistering ${pkg} "
249 slyfox 1.33 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
250 slyfox 1.30 eend $?
251     fi
252 kosmikus 1.7 done
253     fi
254 kosmikus 1.1 }
255    
256 slyfox 1.29 # @FUNCTION: ghc-reverse
257     # @DESCRIPTION:
258 kosmikus 1.1 # help-function: reverse a list
259     ghc-reverse() {
260     local result
261 kosmikus 1.15 local i
262 kosmikus 1.1 for i in $1; do
263     result="${i} ${result}"
264     done
265 kosmikus 1.15 echo "${result}"
266     }
267    
268 slyfox 1.29 # @FUNCTION: ghc-elem
269     # @DESCRIPTION:
270 kosmikus 1.15 # help-function: element-check
271     ghc-elem() {
272     local i
273     for i in $2; do
274     [[ "$1" == "${i}" ]] && return 0
275     done
276     return 1
277 kosmikus 1.1 }
278    
279 slyfox 1.29 # @FUNCTION: ghc-listpkg
280     # @DESCRIPTION:
281 kosmikus 1.1 # show the packages in a package configuration file
282     ghc-listpkg() {
283 kosmikus 1.6 local ghcpkgcall
284 kosmikus 1.15 local i
285 kolmodin 1.28 local extra_flags
286     if version_is_at_least '6.12.3' "$(ghc-version)"; then
287     extra_flags="${extra_flags} -v0"
288     fi
289 kosmikus 1.15 for i in $*; do
290 slyfox 1.33 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
291     | sed \
292     -e "s|^.*${i}:\([^:]*\).*$|\1|" \
293     -e "s|/.*$||" \
294     -e "s|,| |g" -e "s|[(){}]||g"
295 kosmikus 1.15 done
296 kosmikus 1.1 }
297    
298 slyfox 1.29 # @FUNCTION: ghc-package_pkg_postinst
299     # @DESCRIPTION:
300 kosmikus 1.1 # exported function: registers the package-specific package
301     # configuration file
302     ghc-package_pkg_postinst() {
303 kosmikus 1.15 ghc-register-pkg "$(ghc-localpkgconf)"
304 kosmikus 1.1 }
305    
306 slyfox 1.29 # @FUNCTION: ghc-package_pkg_prerm
307     # @DESCRIPTION:
308 kosmikus 1.15 # exported function: unregisters the package-specific package
309     # configuration file; a package contained therein is unregistered
310     # only if it the same package is not also contained in another
311     # package configuration file ...
312 kosmikus 1.1 ghc-package_pkg_prerm() {
313 kosmikus 1.15 ghc-unregister-pkg "$(ghc-localpkgconf)"
314 kosmikus 1.1 }
315    
316 slyfox 1.33 EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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