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Revision 1.38 - (hide annotations) (download)
Sun Jan 19 08:23:36 2014 UTC (7 months ago) by slyfox
Branch: MAIN
Changes since 1.37: +10 -3 lines
Add 'ghc-supports-interpreter' helper to detect interpreter support.

1 slyfox 1.38 # Copyright 1999-2014 Gentoo Foundation
2 kosmikus 1.1 # Distributed under the terms of the GNU General Public License v2
3 slyfox 1.38 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.37 2013/05/11 12:46:32 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 slyfox 1.38 # checks if ghc links against shared haskell libraries by default
115 slyfox 1.37 ghc-supports-dynamic-by-default() {
116     $(ghc-getghc) --info | grep "Dynamic by default" | grep -q "YES"
117     }
118    
119 slyfox 1.38 # @FUNCTION: ghc-supports-interpreter
120     # @DESCRIPTION:
121     # checks if ghc has interpreter mode (aka GHCi)
122     # It usually means that ghc supports for template haskell.
123     ghc-supports-interpreter() {
124     $(ghc-getghc) --info | grep "Have interpreter" | grep -q "YES"
125     }
126 slyfox 1.37
127 slyfox 1.29 # @FUNCTION: ghc-extractportageversion
128     # @DESCRIPTION:
129 dcoutts 1.23 # extract the version of a portage-installed package
130     ghc-extractportageversion() {
131     local pkg
132     local version
133     pkg="$(best_version $1)"
134     version="${pkg#$1-}"
135     version="${version%-r*}"
136     version="${version%_pre*}"
137     echo "${version}"
138     }
139    
140 slyfox 1.29 # @FUNCTION: ghc-libdir
141     # @DESCRIPTION:
142 kosmikus 1.1 # returns the library directory
143 kosmikus 1.6 _GHC_LIBDIR_CACHE=""
144 kosmikus 1.1 ghc-libdir() {
145 kosmikus 1.6 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
146     _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
147     fi
148     echo "${_GHC_LIBDIR_CACHE}"
149 kosmikus 1.1 }
150    
151 slyfox 1.29 # @FUNCTION: ghc-confdir
152     # @DESCRIPTION:
153 kosmikus 1.1 # returns the (Gentoo) library configuration directory
154     ghc-confdir() {
155 kosmikus 1.15 echo "$(ghc-libdir)/gentoo"
156 kosmikus 1.1 }
157    
158 slyfox 1.29 # @FUNCTION: ghc-localpkgconf
159     # @DESCRIPTION:
160 kosmikus 1.1 # returns the name of the local (package-specific)
161     # package configuration file
162     ghc-localpkgconf() {
163     echo "${PF}.conf"
164     }
165    
166 slyfox 1.29 # @FUNCTION: ghc-makeghcilib
167     # @DESCRIPTION:
168 kosmikus 1.3 # make a ghci foo.o file from a libfoo.a file
169     ghc-makeghcilib() {
170     local outfile
171     outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
172 kosmikus 1.15 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
173     }
174    
175 vapier 1.32 # @FUNCTION: ghc-package-exists
176 slyfox 1.29 # @DESCRIPTION:
177 kosmikus 1.15 # tests if a ghc package exists
178     ghc-package-exists() {
179 slyfox 1.33 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
180 kosmikus 1.3 }
181    
182 slyfox 1.29 # @FUNCTION: ghc-setup-pkg
183     # @DESCRIPTION:
184 kosmikus 1.3 # creates a local (package-specific) package
185     # configuration file; the arguments should be
186     # uninstalled package description files, each
187     # containing a single package description; if
188     # no arguments are given, the resulting file is
189     # empty
190 kosmikus 1.1 ghc-setup-pkg() {
191 slyfox 1.33 local localpkgconf="${S}/$(ghc-localpkgconf)"
192 kosmikus 1.15 echo '[]' > "${localpkgconf}"
193 slyfox 1.33
194 dcoutts 1.10 for pkg in $*; do
195 slyfox 1.33 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
196 kosmikus 1.15 < "${pkg}" || die "failed to register ${pkg}"
197 kosmikus 1.3 done
198 kosmikus 1.1 }
199    
200 slyfox 1.29 # @FUNCTION: ghc-fixlibpath
201     # @DESCRIPTION:
202 araujo 1.9 # fixes the library and import directories path
203     # of the package configuration file
204     ghc-fixlibpath() {
205 kosmikus 1.15 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
206 araujo 1.9 if [[ -n "$2" ]]; then
207 kosmikus 1.15 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
208 araujo 1.9 fi
209     }
210    
211 slyfox 1.29 # @FUNCTION: ghc-install-pkg
212     # @DESCRIPTION:
213 kosmikus 1.1 # moves the local (package-specific) package configuration
214     # file to its final destination
215     ghc-install-pkg() {
216 kosmikus 1.15 mkdir -p "${D}/$(ghc-confdir)"
217     cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
218     > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
219 kosmikus 1.1 }
220    
221 slyfox 1.29 # @FUNCTION: ghc-register-pkg
222     # @DESCRIPTION:
223 kosmikus 1.1 # registers all packages in the local (package-specific)
224     # package configuration file
225     ghc-register-pkg() {
226 slyfox 1.33 local localpkgconf="$(ghc-confdir)/$1"
227    
228 kosmikus 1.15 if [[ -f "${localpkgconf}" ]]; then
229     for pkg in $(ghc-listpkg "${localpkgconf}"); do
230 kosmikus 1.8 ebegin "Registering ${pkg} "
231 slyfox 1.33 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
232     | $(ghc-getghcpkg) update - --force > /dev/null
233 kosmikus 1.8 eend $?
234 kosmikus 1.7 done
235     fi
236 kosmikus 1.1 }
237    
238 slyfox 1.29 # @FUNCTION: ghc-reregister
239     # @DESCRIPTION:
240 kosmikus 1.1 # re-adds all available .conf files to the global
241     # package conf file, to be used on a ghc reinstallation
242     ghc-reregister() {
243 slyfox 1.29 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
244 kosmikus 1.15 einfo "Re-adding packages (may cause several harmless warnings) ..."
245 slyfox 1.29 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
246 kolmodin 1.27 if [ -d "${CONFDIR}" ]; then
247     pushd "${CONFDIR}" > /dev/null
248 kosmikus 1.5 for conf in *.conf; do
249 slyfox 1.29 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
250 kosmikus 1.5 done
251 kosmikus 1.8 popd > /dev/null
252 kosmikus 1.5 fi
253 kosmikus 1.1 }
254    
255 slyfox 1.29 # @FUNCTION: ghc-unregister-pkg
256     # @DESCRIPTION:
257 kosmikus 1.15 # unregisters a package configuration file
258     # protected are all packages that are still contained in
259     # another package configuration file
260 kosmikus 1.1 ghc-unregister-pkg() {
261 slyfox 1.33 local localpkgconf="$(ghc-confdir)/$1"
262 kosmikus 1.15 local i
263     local pkg
264 kolmodin 1.27
265 kosmikus 1.15 if [[ -f "${localpkgconf}" ]]; then
266 kosmikus 1.7 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
267 slyfox 1.30 if ! ghc-package-exists "${pkg}"; then
268     einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
269     else
270     ebegin "Unregistering ${pkg} "
271 slyfox 1.33 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
272 slyfox 1.30 eend $?
273     fi
274 kosmikus 1.7 done
275     fi
276 kosmikus 1.1 }
277    
278 slyfox 1.29 # @FUNCTION: ghc-reverse
279     # @DESCRIPTION:
280 kosmikus 1.1 # help-function: reverse a list
281     ghc-reverse() {
282     local result
283 kosmikus 1.15 local i
284 kosmikus 1.1 for i in $1; do
285     result="${i} ${result}"
286     done
287 kosmikus 1.15 echo "${result}"
288     }
289    
290 slyfox 1.29 # @FUNCTION: ghc-elem
291     # @DESCRIPTION:
292 kosmikus 1.15 # help-function: element-check
293     ghc-elem() {
294     local i
295     for i in $2; do
296     [[ "$1" == "${i}" ]] && return 0
297     done
298     return 1
299 kosmikus 1.1 }
300    
301 slyfox 1.29 # @FUNCTION: ghc-listpkg
302     # @DESCRIPTION:
303 kosmikus 1.1 # show the packages in a package configuration file
304     ghc-listpkg() {
305 kosmikus 1.6 local ghcpkgcall
306 kosmikus 1.15 local i
307 kolmodin 1.28 local extra_flags
308     if version_is_at_least '6.12.3' "$(ghc-version)"; then
309     extra_flags="${extra_flags} -v0"
310     fi
311 kosmikus 1.15 for i in $*; do
312 slyfox 1.33 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
313     | sed \
314     -e "s|^.*${i}:\([^:]*\).*$|\1|" \
315     -e "s|/.*$||" \
316     -e "s|,| |g" -e "s|[(){}]||g"
317 kosmikus 1.15 done
318 kosmikus 1.1 }
319    
320 slyfox 1.29 # @FUNCTION: ghc-package_pkg_postinst
321     # @DESCRIPTION:
322 kosmikus 1.1 # exported function: registers the package-specific package
323     # configuration file
324     ghc-package_pkg_postinst() {
325 kosmikus 1.15 ghc-register-pkg "$(ghc-localpkgconf)"
326 kosmikus 1.1 }
327    
328 slyfox 1.29 # @FUNCTION: ghc-package_pkg_prerm
329     # @DESCRIPTION:
330 kosmikus 1.15 # exported function: unregisters the package-specific package
331     # configuration file; a package contained therein is unregistered
332     # only if it the same package is not also contained in another
333     # package configuration file ...
334 kosmikus 1.1 ghc-package_pkg_prerm() {
335 kosmikus 1.15 ghc-unregister-pkg "$(ghc-localpkgconf)"
336 kosmikus 1.1 }
337    
338 slyfox 1.33 EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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