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1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2013 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.5 2004/11/24 15:05:49 kosmikus Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.36 2013/01/06 13:06:35 slyfox Exp $
4# 4
5# @ECLASS: ghc-package.eclass
6# @MAINTAINER:
7# "Gentoo's Haskell Language team" <haskell@gentoo.org>
8# @AUTHOR:
5# Author: Andres Loeh <kosmikus@gentoo.org> 9# Original Author: Andres Loeh <kosmikus@gentoo.org>
6#
7# This eclass helps with the Glasgow Haskell Compiler's package 10# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
8# configuration utility. 11# @DESCRIPTION:
12# Helper eclass to handle ghc installation/upgrade/deinstallation process.
9 13
10ECLASS="ghc-package" 14inherit versionator
11INHERITED="$INHERITED $ECLASS"
12 15
13PATH="${PATH}:/opt/ghc/bin" 16# @FUNCTION: ghc-getghc
14 17# @DESCRIPTION:
15# for later configuration using environment variables/
16# returns the name of the ghc executable 18# returns the name of the ghc executable
17ghc-getghc() { 19ghc-getghc() {
18 echo "ghc" 20 type -P ghc
19} 21}
20 22
23# @FUNCTION: ghc-getghcpkg
24# @DESCRIPTION:
21# returns the name of the ghc-pkg executable 25# Internal function determines returns the name of the ghc-pkg executable
22ghc-getghcpkg() { 26ghc-getghcpkg() {
23 echo "ghc-pkg" 27 type -P ghc-pkg
24} 28}
25 29
30# @FUNCTION: ghc-getghcpkgbin
31# @DESCRIPTION:
26# returns the name of the ghc-pkg binary (ghc-pkg 32# returns the name of the ghc-pkg binary (ghc-pkg
27# itself usually is a shell script, and we have to 33# itself usually is a shell script, and we have to
28# bypass the script under certain circumstances) 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
29ghc-getghcpkgbin() { 38ghc-getghcpkgbin() {
30 echo $(ghc-libdir)/"ghc-pkg.bin" 39 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
40 # the wrapper script with the static flags
41 echo '[]' > "${T}/empty.conf"
42 if version_is_at_least "7.7.20121101" "$(ghc-version)"; then
43 # was moved to bin/ subtree by:
44 # http://www.haskell.org/pipermail/cvs-ghc/2012-September/076546.html
45 echo "$(ghc-libdir)/bin/ghc-pkg" "--global-package-db=${T}/empty.conf"
46 elif version_is_at_least "7.5.20120516" "$(ghc-version)"; then
47 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
31} 51}
32 52
53# @FUNCTION: ghc-version
54# @DESCRIPTION:
33# returns the version of ghc 55# returns the version of ghc
56_GHC_VERSION_CACHE=""
34ghc-version() { 57ghc-version() {
35 $(ghc-getghc) --version | sed 's:^.*version ::' 58 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
59 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
60 fi
61 echo "${_GHC_VERSION_CACHE}"
36} 62}
37 63
64# @FUNCTION: ghc-bestcabalversion
65# @DESCRIPTION:
66# return the best version of the Cabal library that is available
67ghc-bestcabalversion() {
68 # We ask portage, not ghc, so that we only pick up
69 # portage-installed cabal versions.
70 local cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
71 echo "Cabal-${cabalversion}"
72}
73
74# @FUNCTION: ghc-sanecabal
75# @DESCRIPTION:
76# check if a standalone Cabal version is available for the
77# currently used ghc; takes minimal version of Cabal as
78# an optional argument
79ghc-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# @FUNCTION: ghc-supports-shared-libraries
90# @DESCRIPTION:
91# checks if ghc is built with support for building
92# shared libraries (aka '-dynamic' option)
93ghc-supports-shared-libraries() {
94 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
95}
96
97# @FUNCTION: ghc-supports-threaded-runtime
98# @DESCRIPTION:
99# checks if ghc is built with support for threaded
100# runtime (aka '-threaded' option)
101ghc-supports-threaded-runtime() {
102 $(ghc-getghc) --info | grep "RTS ways" | grep -q "thr"
103}
104
105# @FUNCTION: ghc-extractportageversion
106# @DESCRIPTION:
107# extract the version of a portage-installed package
108ghc-extractportageversion() {
109 local pkg
110 local version
111 pkg="$(best_version $1)"
112 version="${pkg#$1-}"
113 version="${version%-r*}"
114 version="${version%_pre*}"
115 echo "${version}"
116}
117
118# @FUNCTION: ghc-libdir
119# @DESCRIPTION:
38# returns the library directory 120# returns the library directory
121_GHC_LIBDIR_CACHE=""
39ghc-libdir() { 122ghc-libdir() {
40 $(ghc-getghc) --print-libdir 123 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
124 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
125 fi
126 echo "${_GHC_LIBDIR_CACHE}"
41} 127}
42 128
129# @FUNCTION: ghc-confdir
130# @DESCRIPTION:
43# returns the (Gentoo) library configuration directory 131# returns the (Gentoo) library configuration directory
44ghc-confdir() { 132ghc-confdir() {
45 echo $(ghc-libdir)/gentoo 133 echo "$(ghc-libdir)/gentoo"
46} 134}
47 135
136# @FUNCTION: ghc-localpkgconf
137# @DESCRIPTION:
48# returns the name of the local (package-specific) 138# returns the name of the local (package-specific)
49# package configuration file 139# package configuration file
50ghc-localpkgconf() { 140ghc-localpkgconf() {
51 echo "${PF}.conf" 141 echo "${PF}.conf"
52} 142}
53 143
144# @FUNCTION: ghc-makeghcilib
145# @DESCRIPTION:
54# make a ghci foo.o file from a libfoo.a file 146# make a ghci foo.o file from a libfoo.a file
55ghc-makeghcilib() { 147ghc-makeghcilib() {
56 local outfile 148 local outfile
57 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 149 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
58 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 150 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
59} 151}
60 152
153# @FUNCTION: ghc-package-exists
154# @DESCRIPTION:
155# tests if a ghc package exists
156ghc-package-exists() {
157 $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
158}
159
160# @FUNCTION: ghc-setup-pkg
161# @DESCRIPTION:
61# creates a local (package-specific) package 162# creates a local (package-specific) package
62# configuration file; the arguments should be 163# configuration file; the arguments should be
63# uninstalled package description files, each 164# uninstalled package description files, each
64# containing a single package description; if 165# containing a single package description; if
65# no arguments are given, the resulting file is 166# no arguments are given, the resulting file is
66# empty 167# empty
67ghc-setup-pkg() { 168ghc-setup-pkg() {
68 local localpkgconf
69 localpkgconf="${S}/$(ghc-localpkgconf)" 169 local localpkgconf="${S}/$(ghc-localpkgconf)"
70 echo '[' > ${localpkgconf} 170 echo '[]' > "${localpkgconf}"
71 while [ -n "$1" ]; do
72 cat "$1" >> ${localpkgconf}
73 shift
74 [ -n "$1" ] && echo ',' >> ${localpkgconf}
75 done
76 echo ']' >> ${localpkgconf}
77}
78 171
172 for pkg in $*; do
173 $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
174 < "${pkg}" || die "failed to register ${pkg}"
175 done
176}
177
178# @FUNCTION: ghc-fixlibpath
179# @DESCRIPTION:
180# fixes the library and import directories path
181# of the package configuration file
182ghc-fixlibpath() {
183 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
184 if [[ -n "$2" ]]; then
185 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
186 fi
187}
188
189# @FUNCTION: ghc-install-pkg
190# @DESCRIPTION:
79# moves the local (package-specific) package configuration 191# moves the local (package-specific) package configuration
80# file to its final destination 192# file to its final destination
81ghc-install-pkg() { 193ghc-install-pkg() {
82 mkdir -p ${D}/$(ghc-confdir) 194 mkdir -p "${D}/$(ghc-confdir)"
83 cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \ 195 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
84 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 196 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
85} 197}
86 198
199# @FUNCTION: ghc-register-pkg
200# @DESCRIPTION:
87# registers all packages in the local (package-specific) 201# registers all packages in the local (package-specific)
88# package configuration file 202# package configuration file
89ghc-register-pkg() { 203ghc-register-pkg() {
90 local localpkgconf
91 localpkgconf="$(ghc-confdir)/$1" 204 local localpkgconf="$(ghc-confdir)/$1"
205
206 if [[ -f "${localpkgconf}" ]]; then
92 for pkg in $(ghc-listpkg ${localpkgconf}); do 207 for pkg in $(ghc-listpkg "${localpkgconf}"); do
93 einfo "Registering ${pkg} ..." 208 ebegin "Registering ${pkg} "
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 209 $(ghc-getghcpkgbin) -f "${localpkgconf}" describe "${pkg}" \
95 | $(ghc-getghcpkg) -u --force 210 | $(ghc-getghcpkg) update - --force > /dev/null
211 eend $?
96 done 212 done
213 fi
97} 214}
98 215
216# @FUNCTION: ghc-reregister
217# @DESCRIPTION:
99# re-adds all available .conf files to the global 218# re-adds all available .conf files to the global
100# package conf file, to be used on a ghc reinstallation 219# package conf file, to be used on a ghc reinstallation
101ghc-reregister() { 220ghc-reregister() {
102 einfo "Re-adding packages ..." 221 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
103 ewarn "This may cause several warnings, but they should be harmless." 222 einfo "Re-adding packages (may cause several harmless warnings) ..."
104 if [ -d "$(ghc-confdir)" ]; then 223 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
105 pushd $(ghc-confdir) 224 if [ -d "${CONFDIR}" ]; then
225 pushd "${CONFDIR}" > /dev/null
106 for conf in *.conf; do 226 for conf in *.conf; do
107 einfo "Processing ${conf} ..." 227 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
108 ghc-register-pkg ${conf}
109 done 228 done
110 popd 229 popd > /dev/null
111 fi 230 fi
112} 231}
113 232
114# unregisters ... 233# @FUNCTION: ghc-unregister-pkg
234# @DESCRIPTION:
235# unregisters a package configuration file
236# protected are all packages that are still contained in
237# another package configuration file
115ghc-unregister-pkg() { 238ghc-unregister-pkg() {
116 local localpkgconf
117 localpkgconf="$(ghc-confdir)/$1" 239 local localpkgconf="$(ghc-confdir)/$1"
240 local i
241 local pkg
242
243 if [[ -f "${localpkgconf}" ]]; then
118 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 244 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
245 if ! ghc-package-exists "${pkg}"; then
246 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
247 else
119 einfo "Unregistering ${pkg} ..." 248 ebegin "Unregistering ${pkg} "
120 $(ghc-getghcpkg) -r ${pkg} --force 249 $(ghc-getghcpkg) unregister "${pkg}" --force > /dev/null
250 eend $?
251 fi
121 done 252 done
253 fi
122} 254}
123 255
256# @FUNCTION: ghc-reverse
257# @DESCRIPTION:
124# help-function: reverse a list 258# help-function: reverse a list
125ghc-reverse() { 259ghc-reverse() {
126 local result 260 local result
261 local i
127 for i in $1; do 262 for i in $1; do
128 result="${i} ${result}" 263 result="${i} ${result}"
129 done 264 done
130 echo ${result} 265 echo "${result}"
131} 266}
132 267
268# @FUNCTION: ghc-elem
269# @DESCRIPTION:
270# help-function: element-check
271ghc-elem() {
272 local i
273 for i in $2; do
274 [[ "$1" == "${i}" ]] && return 0
275 done
276 return 1
277}
278
279# @FUNCTION: ghc-listpkg
280# @DESCRIPTION:
133# show the packages in a package configuration file 281# show the packages in a package configuration file
134ghc-listpkg() { 282ghc-listpkg() {
135 [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ 283 local ghcpkgcall
136 | cut -f2 -d':' \ 284 local i
137 | sed 's:,: :g' 285 local extra_flags
286 if version_is_at_least '6.12.3' "$(ghc-version)"; then
287 extra_flags="${extra_flags} -v0"
288 fi
289 for i in $*; do
290 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 done
138} 296}
139 297
298# @FUNCTION: ghc-package_pkg_postinst
299# @DESCRIPTION:
140# exported function: registers the package-specific package 300# exported function: registers the package-specific package
141# configuration file 301# configuration file
142ghc-package_pkg_postinst() { 302ghc-package_pkg_postinst() {
143 ghc-register-pkg $(ghc-localpkgconf) 303 ghc-register-pkg "$(ghc-localpkgconf)"
144} 304}
145 305
306# @FUNCTION: ghc-package_pkg_prerm
307# @DESCRIPTION:
146# exported function: unregisters the package-specific 308# exported function: unregisters the package-specific package
147# package configuration file, under the condition that 309# configuration file; a package contained therein is unregistered
148# after removal, no other instances of the package will 310# only if it the same package is not also contained in another
149# be left (necessary check because ghc packages are not 311# package configuration file ...
150# versioned)
151ghc-package_pkg_prerm() { 312ghc-package_pkg_prerm() {
152 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
153 || ghc-unregister-pkg $(ghc-localpkgconf) 313 ghc-unregister-pkg "$(ghc-localpkgconf)"
154} 314}
155 315
156EXPORT_FUNCTIONS pkg_postinst pkg_prerm 316EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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