/[gentoo-x86]/eclass/ghc-package.eclass
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Revision 1.14 - (show annotations) (download)
Mon Jul 11 15:08:06 2005 UTC (9 years, 2 months ago) by swegener
Branch: MAIN
Changes since 1.13: +2 -2 lines
QA: Apply whitespace checks from repoman to eclasses.

1 # Copyright 1999-2004 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.13 2005/07/06 20:23:20 agriffis Exp $
4 #
5 # Author: Andres Loeh <kosmikus@gentoo.org>
6 #
7 # This eclass helps with the Glasgow Haskell Compiler's package
8 # configuration utility.
9
10 inherit versionator
11
12
13 # promote /opt/ghc/bin to a better position in the search path
14 PATH="/usr/bin:/opt/ghc/bin:${PATH}"
15
16 # for later configuration using environment variables/
17 # returns the name of the ghc executable
18 ghc-getghc() {
19 echo "ghc"
20 }
21
22 # returns the name of the ghc-pkg executable
23 ghc-getghcpkg() {
24 echo "ghc-pkg"
25 }
26
27 # returns the name of the ghc-pkg binary (ghc-pkg
28 # itself usually is a shell script, and we have to
29 # bypass the script under certain circumstances);
30 # for Cabal, we add the global package config file,
31 # because for some reason that's required
32 ghc-getghcpkgbin() {
33 if ghc-cabal; then
34 echo $(ghc-libdir)/"ghc-pkg.bin" "--global-conf=$(ghc-libdir)/package.conf"
35 else
36 echo $(ghc-libdir)/"ghc-pkg.bin"
37 fi
38 }
39
40 # returns the version of ghc
41 _GHC_VERSION_CACHE=""
42 ghc-version() {
43 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
44 _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')"
45 fi
46 echo "${_GHC_VERSION_CACHE}"
47 }
48
49 # returns true for ghc >= 6.4
50 ghc-cabal() {
51 version_is_at_least "6.4" "$(ghc-version)"
52 }
53
54 # returns the library directory
55 _GHC_LIBDIR_CACHE=""
56 ghc-libdir() {
57 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
58 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
59 fi
60 echo "${_GHC_LIBDIR_CACHE}"
61 }
62
63 # returns the (Gentoo) library configuration directory
64 ghc-confdir() {
65 echo $(ghc-libdir)/gentoo
66 }
67
68 # returns the name of the local (package-specific)
69 # package configuration file
70 ghc-localpkgconf() {
71 echo "${PF}.conf"
72 }
73
74 # make a ghci foo.o file from a libfoo.a file
75 ghc-makeghcilib() {
76 local outfile
77 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
78 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1
79 }
80
81 # creates a local (package-specific) package
82 # configuration file; the arguments should be
83 # uninstalled package description files, each
84 # containing a single package description; if
85 # no arguments are given, the resulting file is
86 # empty
87 ghc-setup-pkg() {
88 local localpkgconf
89 localpkgconf="${S}/$(ghc-localpkgconf)"
90 echo '[]' > ${localpkgconf}
91 for pkg in $*; do
92 $(ghc-getghcpkgbin) -f ${localpkgconf} -u --force \
93 < ${pkg} || die "failed to register ${pkg}"
94 done
95 }
96
97 # fixes the library and import directories path
98 # of the package configuration file
99 ghc-fixlibpath() {
100 sed -i "s|$1|$(ghc-libdir)|g" ${S}/$(ghc-localpkgconf)
101 if [[ -n "$2" ]]; then
102 sed -i "s|$2|$(ghc-libdir)/imports|g" ${S}/$(ghc-localpkgconf)
103 fi
104 }
105
106 # moves the local (package-specific) package configuration
107 # file to its final destination
108 ghc-install-pkg() {
109 mkdir -p ${D}/$(ghc-confdir)
110 cat ${S}/$(ghc-localpkgconf) | sed "s|${D}||g" \
111 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf)
112 }
113
114 # registers all packages in the local (package-specific)
115 # package configuration file
116 ghc-register-pkg() {
117 local localpkgconf
118 localpkgconf="$(ghc-confdir)/$1"
119 if [[ -f ${localpkgconf} ]]; then
120 for pkg in $(ghc-listpkg ${localpkgconf}); do
121 ebegin "Registering ${pkg} "
122 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \
123 | $(ghc-getghcpkg) -u --force > /dev/null
124 eend $?
125 done
126 fi
127 }
128
129 # re-adds all available .conf files to the global
130 # package conf file, to be used on a ghc reinstallation
131 ghc-reregister() {
132 einfo "Re-adding packages ..."
133 einfo "(This may cause several warnings, but they should be harmless.)"
134 if [ -d "$(ghc-confdir)" ]; then
135 pushd $(ghc-confdir) > /dev/null
136 for conf in *.conf; do
137 einfo "Processing ${conf} ..."
138 ghc-register-pkg ${conf}
139 done
140 popd > /dev/null
141 fi
142 }
143
144 # unregisters ...
145 ghc-unregister-pkg() {
146 local localpkgconf
147 localpkgconf="$(ghc-confdir)/$1"
148 if [[ -f ${localpkgconf} ]]; then
149 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
150 ebegin "Unregistering ${pkg} "
151 $(ghc-getghcpkg) -r ${pkg} --force > /dev/null
152 eend $?
153 done
154 fi
155 }
156
157 # help-function: reverse a list
158 ghc-reverse() {
159 local result
160 for i in $1; do
161 result="${i} ${result}"
162 done
163 echo ${result}
164 }
165
166 # show the packages in a package configuration file
167 ghc-listpkg() {
168 local ghcpkgcall
169 if ghc-cabal; then
170 echo $($(ghc-getghcpkg) list -f $1) \
171 | sed \
172 -e "s|^.*${f}:\([^:]*\).*$|\1|" \
173 -e "s|/.*$||" \
174 -e "s|,| |g" -e "s|[()]||g"
175 else
176 echo $($(ghc-getghcpkgbin) -l -f $1) \
177 | cut -f2 -d':' \
178 | sed 's:,: :g'
179 fi
180 }
181
182 # exported function: registers the package-specific package
183 # configuration file
184 ghc-package_pkg_postinst() {
185 ghc-register-pkg $(ghc-localpkgconf)
186 }
187
188 # exported function: unregisters the package-specific
189 # package configuration file, under the condition that
190 # after removal, no other instances of the package will
191 # be left (necessary check because ghc packages are not
192 # versioned)
193 ghc-package_pkg_prerm() {
194 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
195 || ghc-unregister-pkg $(ghc-localpkgconf)
196 }
197
198 EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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