/[gentoo-x86]/eclass/ghc-package.eclass
Gentoo

Diff of /eclass/ghc-package.eclass

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

Revision 1.3 Revision 1.16
1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2004 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 1.3 2004/11/04 13:13:59 kosmikus Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.16 2006/03/01 12:58:01 dcoutts Exp $
4# 4#
5# Author: Andres Loeh <kosmikus@gentoo.org> 5# Author: Andres Loeh <kosmikus@gentoo.org>
6# 6#
7# This eclass helps with the Glasgow Haskell Compiler's package 7# This eclass helps with the Glasgow Haskell Compiler's package
8# configuration utility. 8# configuration utility.
9 9
10ECLASS="ghc-package" 10inherit versionator
11INHERITED="$INHERITED $ECLASS"
12 11
13PATH="${PATH}:/opt/ghc/bin" 12# promote /opt/ghc/bin to a better position in the search path
13PATH="/usr/bin:/opt/ghc/bin:${PATH}"
14 14
15# for later configuration using environment variables/ 15# for later configuration using environment variables/
16# returns the name of the ghc executable 16# returns the name of the ghc executable
17ghc-getghc() { 17ghc-getghc() {
18 echo "ghc" 18 echo "ghc"
23 echo "ghc-pkg" 23 echo "ghc-pkg"
24} 24}
25 25
26# returns the name of the ghc-pkg binary (ghc-pkg 26# returns the name of the ghc-pkg binary (ghc-pkg
27# itself usually is a shell script, and we have to 27# itself usually is a shell script, and we have to
28# bypass the script under certain circumstances) 28# bypass the script under certain circumstances);
29# for Cabal, we add an empty global package config file,
30# because for some reason the global package file
31# must be specified
29ghc-getghcpkgbin() { 32ghc-getghcpkgbin() {
33 if ghc-cabal; then
34 echo '[]' > "${T}/empty.conf"
35 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
36 else
30 echo $(ghc-libdir)/"ghc-pkg.bin" 37 echo "$(ghc-libdir)/ghc-pkg.bin"
38 fi
31} 39}
32 40
33# returns the version of ghc 41# returns the version of ghc
42_GHC_VERSION_CACHE=""
34ghc-version() { 43ghc-version() {
35 $(ghc-getghc) --version | sed 's:^.*version ::' 44 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
45 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
46 fi
47 echo "${_GHC_VERSION_CACHE}"
48}
49
50# this function can be used to determine if ghc itself
51# uses the Cabal package format; it has nothing to do
52# with the Cabal libraries ... ghc uses the Cabal package
53# format since version 6.4
54ghc-cabal() {
55 version_is_at_least "6.4" "$(ghc-version)"
56}
57
58# return the best version of the Cabal library that is available
59ghc-bestcabalversion() {
60 local cabalpackage
61 local cabalversion
62 if ghc-cabal; then
63 # Try if ghc-pkg can determine the latest version.
64 # If not, use portage.
65 cabalpackage="$($(ghc-getghcpkg) latest Cabal 2> /dev/null)"
66 if [[ $? -eq 0 ]]; then
67 cabalversion="${cabalpackage#Cabal-}"
68 else
69 cabalpackage="$(best_version cabal)"
70 cabalversion="${cabalpackage#dev-haskell/cabal-}"
71 cabalversion="${cabalversion%-r*}"
72 cabalversion="${cabalversion%_pre*}"
73 fi
74 echo "Cabal-${cabalversion}"
75 else
76 # older ghc's don't support package versioning
77 echo Cabal
78 fi
79}
80
81# check if a standalone Cabal version is available for the
82# currently used ghc; takes minimal version of Cabal as
83# an optional argument
84ghc-sanecabal() {
85 local f
86 local version
87 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
88 for f in $(ghc-confdir)/cabal-*; do
89 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
90 done
91 return 1
36} 92}
37 93
38# returns the library directory 94# returns the library directory
95_GHC_LIBDIR_CACHE=""
39ghc-libdir() { 96ghc-libdir() {
40 $(ghc-getghc) --print-libdir 97 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
98 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
99 fi
100 echo "${_GHC_LIBDIR_CACHE}"
41} 101}
42 102
43# returns the (Gentoo) library configuration directory 103# returns the (Gentoo) library configuration directory
44ghc-confdir() { 104ghc-confdir() {
45 echo $(ghc-libdir)/gentoo 105 echo "$(ghc-libdir)/gentoo"
46} 106}
47 107
48# returns the name of the local (package-specific) 108# returns the name of the local (package-specific)
49# package configuration file 109# package configuration file
50ghc-localpkgconf() { 110ghc-localpkgconf() {
53 113
54# make a ghci foo.o file from a libfoo.a file 114# make a ghci foo.o file from a libfoo.a file
55ghc-makeghcilib() { 115ghc-makeghcilib() {
56 local outfile 116 local outfile
57 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" 117 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
58 ld --relocatable --discard-all --output="${outfile}" $1 118 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
119}
120
121# tests if a ghc package exists
122ghc-package-exists() {
123 $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1
59} 124}
60 125
61# creates a local (package-specific) package 126# creates a local (package-specific) package
62# configuration file; the arguments should be 127# configuration file; the arguments should be
63# uninstalled package description files, each 128# uninstalled package description files, each
65# no arguments are given, the resulting file is 130# no arguments are given, the resulting file is
66# empty 131# empty
67ghc-setup-pkg() { 132ghc-setup-pkg() {
68 local localpkgconf 133 local localpkgconf
69 localpkgconf="${S}/$(ghc-localpkgconf)" 134 localpkgconf="${S}/$(ghc-localpkgconf)"
70 echo '[' > ${localpkgconf} 135 echo '[]' > "${localpkgconf}"
71 while [ -n "$1" ]; do 136 for pkg in $*; do
72 cat "$1" >> ${localpkgconf} 137 $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \
73 shift 138 < "${pkg}" || die "failed to register ${pkg}"
74 [ -n "$1" ] && echo ',' >> ${localpkgconf}
75 done 139 done
76 echo ']' >> ${localpkgconf} 140}
141
142# fixes the library and import directories path
143# of the package configuration file
144ghc-fixlibpath() {
145 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
146 if [[ -n "$2" ]]; then
147 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
148 fi
77} 149}
78 150
79# moves the local (package-specific) package configuration 151# moves the local (package-specific) package configuration
80# file to its final destination 152# file to its final destination
81ghc-install-pkg() { 153ghc-install-pkg() {
82 mkdir -p ${D}/$(ghc-confdir) 154 mkdir -p "${D}/$(ghc-confdir)"
83 cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \ 155 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
84 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 156 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
85} 157}
86 158
87# registers all packages in the local (package-specific) 159# registers all packages in the local (package-specific)
88# package configuration file 160# package configuration file
89ghc-register-pkg() { 161ghc-register-pkg() {
90 local localpkgconf 162 local localpkgconf
91 localpkgconf="$(ghc-confdir)/$1" 163 localpkgconf="$(ghc-confdir)/$1"
164 if [[ -f "${localpkgconf}" ]]; then
92 for pkg in $(ghc-listpkg ${localpkgconf}); do 165 for pkg in $(ghc-listpkg "${localpkgconf}"); do
93 einfo "Registering ${pkg} ..." 166 ebegin "Registering ${pkg} "
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 167 $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \
95 | $(ghc-getghcpkg) -u --force 168 | $(ghc-getghcpkg) -u --force > /dev/null
169 eend $?
96 done 170 done
171 fi
97} 172}
98 173
99# re-adds all available .conf files to the global 174# re-adds all available .conf files to the global
100# package conf file, to be used on a ghc reinstallation 175# package conf file, to be used on a ghc reinstallation
101ghc-reregister() { 176ghc-reregister() {
102 einfo "Re-adding packages ..." 177 einfo "Re-adding packages (may cause several harmless warnings) ..."
103 ewarn "This may cause several warnings, but they should be harmless." 178 if [ -d "$(ghc-confdir)" ]; then
104 pushd $(ghc-confdir) 179 pushd "$(ghc-confdir)" > /dev/null
105 for conf in *.conf; do 180 for conf in *.conf; do
106 einfo "Processing ${conf} ..." 181# einfo "Processing ${conf} ..."
107 ghc-register-pkg ${conf} 182 ghc-register-pkg "${conf}"
108 done 183 done
109 popd 184 popd > /dev/null
185 fi
110} 186}
111 187
112# unregisters ... 188# unregisters a package configuration file
189# protected are all packages that are still contained in
190# another package configuration file
113ghc-unregister-pkg() { 191ghc-unregister-pkg() {
114 local localpkgconf 192 local localpkgconf
193 local i
194 local pkg
195 local protected
115 localpkgconf="$(ghc-confdir)/$1" 196 localpkgconf="$(ghc-confdir)/$1"
197
198 for i in $(ghc-confdir)/*.conf; do
199 [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})"
200 done
201 # protected now contains the packages that cannot be unregistered yet
202
203 if [[ -f "${localpkgconf}" ]]; then
116 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 204 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
205 if $(ghc-elem "${pkg}" "${protected}"); then
206 einfo "Package ${pkg} is protected."
207 elif ! ghc-package-exists "${pkg}"; then
208 :
209 # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
210 else
117 einfo "Unregistering ${pkg} ..." 211 ebegin "Unregistering ${pkg} "
118 $(ghc-getghcpkg) -r ${pkg} --force 212 $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null
213 eend $?
214 fi
119 done 215 done
216 fi
120} 217}
121 218
122# help-function: reverse a list 219# help-function: reverse a list
123ghc-reverse() { 220ghc-reverse() {
124 local result 221 local result
222 local i
125 for i in $1; do 223 for i in $1; do
126 result="${i} ${result}" 224 result="${i} ${result}"
127 done 225 done
128 echo ${result} 226 echo "${result}"
227}
228
229# help-function: element-check
230ghc-elem() {
231 local i
232 for i in $2; do
233 [[ "$1" == "${i}" ]] && return 0
234 done
235 return 1
129} 236}
130 237
131# show the packages in a package configuration file 238# show the packages in a package configuration file
132ghc-listpkg() { 239ghc-listpkg() {
240 local ghcpkgcall
241 local i
242 for i in $*; do
243 if ghc-cabal; then
244 echo $($(ghc-getghcpkg) list -f "${i}") \
245 | sed \
246 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
247 -e "s|/.*$||" \
248 -e "s|,| |g" -e "s|[()]||g"
249 else
133 [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ 250 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
134 | cut -f2 -d':' \ 251 | cut -f2 -d':' \
135 | sed 's:,: :g' 252 | sed 's:,: :g'
253 fi
254 done
136} 255}
137 256
138# exported function: registers the package-specific package 257# exported function: registers the package-specific package
139# configuration file 258# configuration file
140ghc-package_pkg_postinst() { 259ghc-package_pkg_postinst() {
141 ghc-register-pkg $(ghc-localpkgconf) 260 ghc-register-pkg "$(ghc-localpkgconf)"
142} 261}
143 262
144# exported function: unregisters the package-specific 263# exported function: unregisters the package-specific package
145# package configuration file, under the condition that 264# configuration file; a package contained therein is unregistered
146# after removal, no other instances of the package will 265# only if it the same package is not also contained in another
147# be left (necessary check because ghc packages are not 266# package configuration file ...
148# versioned)
149ghc-package_pkg_prerm() { 267ghc-package_pkg_prerm() {
150 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
151 || ghc-unregister-pkg $(ghc-localpkgconf) 268 ghc-unregister-pkg "$(ghc-localpkgconf)"
152} 269}
153 270
154EXPORT_FUNCTIONS pkg_postinst pkg_prerm 271EXPORT_FUNCTIONS pkg_postinst pkg_prerm

Legend:
Removed from v.1.3  
changed lines
  Added in v.1.16

  ViewVC Help
Powered by ViewVC 1.1.20