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Revision 1.37 - (hide annotations) (download)
Sat May 11 12:46:32 2013 UTC (19 months, 1 week ago) by slyfox
Branch: MAIN
Changes since 1.36: +16 -1 lines
Added 'ghc-supports-smp' and 'ghc-supports-dynamic-by-default' helpers. Added hint for users to run 'haskell-updater' if configure phase failed.

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 1.37 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.36 2013/01/06 13:06:35 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 1.37 # @FUNCTION: ghc-supports-smp
106     # @DESCRIPTION:
107     # checks if ghc is built with support for multiple cores runtime
108     ghc-supports-smp() {
109     $(ghc-getghc) --info | grep "Support SMP" | grep -q "YES"
110     }
111    
112     # @FUNCTION: ghc-supports-dynamic-by-default
113     # @DESCRIPTION:
114     # checks if ghc link against shared haskell libraries by default
115     ghc-supports-dynamic-by-default() {
116     $(ghc-getghc) --info | grep "Dynamic by default" | grep -q "YES"
117     }
118    
119    
120 slyfox 1.29 # @FUNCTION: ghc-extractportageversion
121     # @DESCRIPTION:
122 dcoutts 1.23 # extract the version of a portage-installed package
123     ghc-extractportageversion() {
124     local pkg
125     local version
126     pkg="$(best_version $1)"
127     version="${pkg#$1-}"
128     version="${version%-r*}"
129     version="${version%_pre*}"
130     echo "${version}"
131     }
132    
133 slyfox 1.29 # @FUNCTION: ghc-libdir
134     # @DESCRIPTION:
135 kosmikus 1.1 # returns the library directory
136 kosmikus 1.6 _GHC_LIBDIR_CACHE=""
137 kosmikus 1.1 ghc-libdir() {
138 kosmikus 1.6 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
139     _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
140     fi
141     echo "${_GHC_LIBDIR_CACHE}"
142 kosmikus 1.1 }
143    
144 slyfox 1.29 # @FUNCTION: ghc-confdir
145     # @DESCRIPTION:
146 kosmikus 1.1 # returns the (Gentoo) library configuration directory
147     ghc-confdir() {
148 kosmikus 1.15 echo "$(ghc-libdir)/gentoo"
149 kosmikus 1.1 }
150    
151 slyfox 1.29 # @FUNCTION: ghc-localpkgconf
152     # @DESCRIPTION:
153 kosmikus 1.1 # returns the name of the local (package-specific)
154     # package configuration file
155     ghc-localpkgconf() {
156     echo "${PF}.conf"
157     }
158    
159 slyfox 1.29 # @FUNCTION: ghc-makeghcilib
160     # @DESCRIPTION:
161 kosmikus 1.3 # make a ghci foo.o file from a libfoo.a file
162     ghc-makeghcilib() {
163     local outfile
164     outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
165 kosmikus 1.15 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
166     }
167    
168 vapier 1.32 # @FUNCTION: ghc-package-exists
169 slyfox 1.29 # @DESCRIPTION:
170 kosmikus 1.15 # tests if a ghc package exists
171     ghc-package-exists() {
172 slyfox 1.33 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
173 kosmikus 1.3 }
174    
175 slyfox 1.29 # @FUNCTION: ghc-setup-pkg
176     # @DESCRIPTION:
177 kosmikus 1.3 # creates a local (package-specific) package
178     # configuration file; the arguments should be
179     # uninstalled package description files, each
180     # containing a single package description; if
181     # no arguments are given, the resulting file is
182     # empty
183 kosmikus 1.1 ghc-setup-pkg() {
184 slyfox 1.33 local localpkgconf="${S}/$(ghc-localpkgconf)"
185 kosmikus 1.15 echo '[]' > "${localpkgconf}"
186 slyfox 1.33
187 dcoutts 1.10 for pkg in $*; do
188 slyfox 1.33 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
189 kosmikus 1.15 < "${pkg}" || die "failed to register ${pkg}"
190 kosmikus 1.3 done
191 kosmikus 1.1 }
192    
193 slyfox 1.29 # @FUNCTION: ghc-fixlibpath
194     # @DESCRIPTION:
195 araujo 1.9 # fixes the library and import directories path
196     # of the package configuration file
197     ghc-fixlibpath() {
198 kosmikus 1.15 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
199 araujo 1.9 if [[ -n "$2" ]]; then
200 kosmikus 1.15 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
201 araujo 1.9 fi
202     }
203    
204 slyfox 1.29 # @FUNCTION: ghc-install-pkg
205     # @DESCRIPTION:
206 kosmikus 1.1 # moves the local (package-specific) package configuration
207     # file to its final destination
208     ghc-install-pkg() {
209 kosmikus 1.15 mkdir -p "${D}/$(ghc-confdir)"
210     cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
211     > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
212 kosmikus 1.1 }
213    
214 slyfox 1.29 # @FUNCTION: ghc-register-pkg
215     # @DESCRIPTION:
216 kosmikus 1.1 # registers all packages in the local (package-specific)
217     # package configuration file
218     ghc-register-pkg() {
219 slyfox 1.33 local localpkgconf="$(ghc-confdir)/$1"
220    
221 kosmikus 1.15 if [[ -f "${localpkgconf}" ]]; then
222     for pkg in $(ghc-listpkg "${localpkgconf}"); do
223 kosmikus 1.8 ebegin "Registering ${pkg} "
224 slyfox 1.33 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
225     | $(ghc-getghcpkg) update - --force > /dev/null
226 kosmikus 1.8 eend $?
227 kosmikus 1.7 done
228     fi
229 kosmikus 1.1 }
230    
231 slyfox 1.29 # @FUNCTION: ghc-reregister
232     # @DESCRIPTION:
233 kosmikus 1.1 # re-adds all available .conf files to the global
234     # package conf file, to be used on a ghc reinstallation
235     ghc-reregister() {
236 slyfox 1.29 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
237 kosmikus 1.15 einfo "Re-adding packages (may cause several harmless warnings) ..."
238 slyfox 1.29 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
239 kolmodin 1.27 if [ -d "${CONFDIR}" ]; then
240     pushd "${CONFDIR}" > /dev/null
241 kosmikus 1.5 for conf in *.conf; do
242 slyfox 1.29 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
243 kosmikus 1.5 done
244 kosmikus 1.8 popd > /dev/null
245 kosmikus 1.5 fi
246 kosmikus 1.1 }
247    
248 slyfox 1.29 # @FUNCTION: ghc-unregister-pkg
249     # @DESCRIPTION:
250 kosmikus 1.15 # unregisters a package configuration file
251     # protected are all packages that are still contained in
252     # another package configuration file
253 kosmikus 1.1 ghc-unregister-pkg() {
254 slyfox 1.33 local localpkgconf="$(ghc-confdir)/$1"
255 kosmikus 1.15 local i
256     local pkg
257 kolmodin 1.27
258 kosmikus 1.15 if [[ -f "${localpkgconf}" ]]; then
259 kosmikus 1.7 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
260 slyfox 1.30 if ! ghc-package-exists "${pkg}"; then
261     einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
262     else
263     ebegin "Unregistering ${pkg} "
264 slyfox 1.33 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
265 slyfox 1.30 eend $?
266     fi
267 kosmikus 1.7 done
268     fi
269 kosmikus 1.1 }
270    
271 slyfox 1.29 # @FUNCTION: ghc-reverse
272     # @DESCRIPTION:
273 kosmikus 1.1 # help-function: reverse a list
274     ghc-reverse() {
275     local result
276 kosmikus 1.15 local i
277 kosmikus 1.1 for i in $1; do
278     result="${i} ${result}"
279     done
280 kosmikus 1.15 echo "${result}"
281     }
282    
283 slyfox 1.29 # @FUNCTION: ghc-elem
284     # @DESCRIPTION:
285 kosmikus 1.15 # help-function: element-check
286     ghc-elem() {
287     local i
288     for i in $2; do
289     [[ "$1" == "${i}" ]] && return 0
290     done
291     return 1
292 kosmikus 1.1 }
293    
294 slyfox 1.29 # @FUNCTION: ghc-listpkg
295     # @DESCRIPTION:
296 kosmikus 1.1 # show the packages in a package configuration file
297     ghc-listpkg() {
298 kosmikus 1.6 local ghcpkgcall
299 kosmikus 1.15 local i
300 kolmodin 1.28 local extra_flags
301     if version_is_at_least '6.12.3' "$(ghc-version)"; then
302     extra_flags="${extra_flags} -v0"
303     fi
304 kosmikus 1.15 for i in $*; do
305 slyfox 1.33 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
306     | sed \
307     -e "s|^.*${i}:\([^:]*\).*$|\1|" \
308     -e "s|/.*$||" \
309     -e "s|,| |g" -e "s|[(){}]||g"
310 kosmikus 1.15 done
311 kosmikus 1.1 }
312    
313 slyfox 1.29 # @FUNCTION: ghc-package_pkg_postinst
314     # @DESCRIPTION:
315 kosmikus 1.1 # exported function: registers the package-specific package
316     # configuration file
317     ghc-package_pkg_postinst() {
318 kosmikus 1.15 ghc-register-pkg "$(ghc-localpkgconf)"
319 kosmikus 1.1 }
320    
321 slyfox 1.29 # @FUNCTION: ghc-package_pkg_prerm
322     # @DESCRIPTION:
323 kosmikus 1.15 # exported function: unregisters the package-specific package
324     # configuration file; a package contained therein is unregistered
325     # only if it the same package is not also contained in another
326     # package configuration file ...
327 kosmikus 1.1 ghc-package_pkg_prerm() {
328 kosmikus 1.15 ghc-unregister-pkg "$(ghc-localpkgconf)"
329 kosmikus 1.1 }
330    
331 slyfox 1.33 EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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