/[gentoo-x86]/eclass/ghc-package.eclass
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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 1.4 2004/11/04 14:16:14 kosmikus Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.7 2005/03/23 13:55:06 kosmikus 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
10inherit versionator
11
10ECLASS="ghc-package" 12ECLASS="ghc-package"
11INHERITED="$INHERITED $ECLASS" 13INHERITED="${INHERITED} ${ECLASS}"
12 14
13PATH="${PATH}:/opt/ghc/bin" 15# promote /opt/ghc/bin to a better position in the search path
16PATH="/usr/bin:/opt/ghc/bin:${PATH}"
14 17
15# for later configuration using environment variables/ 18# for later configuration using environment variables/
16# returns the name of the ghc executable 19# returns the name of the ghc executable
17ghc-getghc() { 20ghc-getghc() {
18 echo "ghc" 21 echo "ghc"
23 echo "ghc-pkg" 26 echo "ghc-pkg"
24} 27}
25 28
26# returns the name of the ghc-pkg binary (ghc-pkg 29# returns the name of the ghc-pkg binary (ghc-pkg
27# itself usually is a shell script, and we have to 30# itself usually is a shell script, and we have to
28# bypass the script under certain circumstances) 31# bypass the script under certain circumstances);
32# for Cabal, we add the global package config file,
33# because for some reason that's required
29ghc-getghcpkgbin() { 34ghc-getghcpkgbin() {
35 if ghc-cabal; then
36 echo $(ghc-libdir)/"ghc-pkg.bin" "--global-conf=$(ghc-libdir)/package.conf"
37 else
30 echo $(ghc-libdir)/"ghc-pkg.bin" 38 echo $(ghc-libdir)/"ghc-pkg.bin"
39 fi
31} 40}
32 41
33# returns the version of ghc 42# returns the version of ghc
43_GHC_VERSION_CACHE=""
34ghc-version() { 44ghc-version() {
45 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
35 $(ghc-getghc) --version | sed 's:^.*version ::' 46 _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')"
47 fi
48 echo "${_GHC_VERSION_CACHE}"
49}
50
51# returns true for ghc >= 6.4
52ghc-cabal() {
53 version_is_at_least "6.4" "$(ghc-version)"
36} 54}
37 55
38# returns the library directory 56# returns the library directory
57_GHC_LIBDIR_CACHE=""
39ghc-libdir() { 58ghc-libdir() {
40 $(ghc-getghc) --print-libdir 59 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
60 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
61 fi
62 echo "${_GHC_LIBDIR_CACHE}"
41} 63}
42 64
43# returns the (Gentoo) library configuration directory 65# returns the (Gentoo) library configuration directory
44ghc-confdir() { 66ghc-confdir() {
45 echo $(ghc-libdir)/gentoo 67 echo $(ghc-libdir)/gentoo
87# registers all packages in the local (package-specific) 109# registers all packages in the local (package-specific)
88# package configuration file 110# package configuration file
89ghc-register-pkg() { 111ghc-register-pkg() {
90 local localpkgconf 112 local localpkgconf
91 localpkgconf="$(ghc-confdir)/$1" 113 localpkgconf="$(ghc-confdir)/$1"
114 if [[ -f ${localpkgconf} ]]; then
92 for pkg in $(ghc-listpkg ${localpkgconf}); do 115 for pkg in $(ghc-listpkg ${localpkgconf}); do
93 einfo "Registering ${pkg} ..." 116 einfo "Registering ${pkg} ..."
94 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 117 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \
95 | $(ghc-getghcpkg) -u --force 118 | $(ghc-getghcpkg) -u --force
96 done 119 done
120 fi
97} 121}
98 122
99# re-adds all available .conf files to the global 123# re-adds all available .conf files to the global
100# package conf file, to be used on a ghc reinstallation 124# package conf file, to be used on a ghc reinstallation
101ghc-reregister() { 125ghc-reregister() {
102 einfo "Re-adding packages ..." 126 einfo "Re-adding packages ..."
103 ewarn "This may cause several warnings, but they should be harmless." 127 ewarn "This may cause several warnings, but they should be harmless."
128 if [ -d "$(ghc-confdir)" ]; then
104 pushd $(ghc-confdir) 129 pushd $(ghc-confdir)
105 for conf in *.conf; do 130 for conf in *.conf; do
106 einfo "Processing ${conf} ..." 131 einfo "Processing ${conf} ..."
107 ghc-register-pkg ${conf} 132 ghc-register-pkg ${conf}
108 done 133 done
109 popd 134 popd
135 fi
110} 136}
111 137
112# unregisters ... 138# unregisters ...
113ghc-unregister-pkg() { 139ghc-unregister-pkg() {
114 local localpkgconf 140 local localpkgconf
115 localpkgconf="$(ghc-confdir)/$1" 141 localpkgconf="$(ghc-confdir)/$1"
142 if [[ -f ${localpkgconf} ]]; then
116 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 143 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
117 einfo "Unregistering ${pkg} ..." 144 einfo "Unregistering ${pkg} ..."
118 $(ghc-getghcpkg) -r ${pkg} --force 145 $(ghc-getghcpkg) -r ${pkg} --force
119 done 146 done
147 fi
120} 148}
121 149
122# help-function: reverse a list 150# help-function: reverse a list
123ghc-reverse() { 151ghc-reverse() {
124 local result 152 local result
128 echo ${result} 156 echo ${result}
129} 157}
130 158
131# show the packages in a package configuration file 159# show the packages in a package configuration file
132ghc-listpkg() { 160ghc-listpkg() {
161 local ghcpkgcall
162 if ghc-cabal; then
163 echo $($(ghc-getghcpkg) list -f $1) \
164 | sed \
165 -e "s|^.*${f}:\([^:]*\).*$|\1|" \
166 -e "s|/.*$||" \
167 -e "s|,| |g" -e "s|[()]||g"
168 else
133 [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ 169 echo $($(ghc-getghcpkgbin) -l -f $1) \
134 | cut -f2 -d':' \ 170 | cut -f2 -d':' \
135 | sed 's:,: :g' 171 | sed 's:,: :g'
172 fi
136} 173}
137 174
138# exported function: registers the package-specific package 175# exported function: registers the package-specific package
139# configuration file 176# configuration file
140ghc-package_pkg_postinst() { 177ghc-package_pkg_postinst() {

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