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Revision 1.6 - (hide annotations) (download)
Fri Mar 18 23:31:48 2005 UTC (9 years, 4 months ago) by kosmikus
Branch: MAIN
Changes since 1.5: +37 -7 lines
* ghc-package eclass is now compatible with ghc-6.4

1 kosmikus 1.1 # Copyright 1999-2004 Gentoo Foundation
2     # Distributed under the terms of the GNU General Public License v2
3 kosmikus 1.6 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.5 2004/11/24 15:05:49 kosmikus Exp $
4 kosmikus 1.1 #
5     # Author: Andres Loeh <kosmikus@gentoo.org>
6     #
7     # This eclass helps with the Glasgow Haskell Compiler's package
8     # configuration utility.
9    
10 kosmikus 1.6 inherit versionator
11    
12 kosmikus 1.1 ECLASS="ghc-package"
13 kosmikus 1.6 INHERITED="${INHERITED} ${ECLASS}"
14 kosmikus 1.1
15     PATH="${PATH}:/opt/ghc/bin"
16    
17     # for later configuration using environment variables/
18     # returns the name of the ghc executable
19     ghc-getghc() {
20     echo "ghc"
21     }
22    
23     # returns the name of the ghc-pkg executable
24     ghc-getghcpkg() {
25     echo "ghc-pkg"
26     }
27    
28     # returns the name of the ghc-pkg binary (ghc-pkg
29     # itself usually is a shell script, and we have to
30 kosmikus 1.6 # bypass the script under certain circumstances);
31     # for Cabal, we add the global package config file,
32     # because for some reason that's required
33 kosmikus 1.1 ghc-getghcpkgbin() {
34 kosmikus 1.6 if ghc-cabal; then
35     echo $(ghc-libdir)/"ghc-pkg.bin" "--global-conf=$(ghc-libdir)/package.conf"
36     else
37     echo $(ghc-libdir)/"ghc-pkg.bin"
38     fi
39 kosmikus 1.1 }
40    
41     # returns the version of ghc
42 kosmikus 1.6 _GHC_VERSION_CACHE=""
43 kosmikus 1.1 ghc-version() {
44 kosmikus 1.6 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
45     _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')"
46     fi
47     echo "${_GHC_VERSION_CACHE}"
48     }
49    
50     # returns true for ghc >= 6.4
51     ghc-cabal() {
52     version_is_at_least "6.4" "$(ghc-version)"
53 kosmikus 1.1 }
54    
55     # returns the library directory
56 kosmikus 1.6 _GHC_LIBDIR_CACHE=""
57 kosmikus 1.1 ghc-libdir() {
58 kosmikus 1.6 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
59     _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
60     fi
61     echo "${_GHC_LIBDIR_CACHE}"
62 kosmikus 1.1 }
63    
64     # returns the (Gentoo) library configuration directory
65     ghc-confdir() {
66     echo $(ghc-libdir)/gentoo
67     }
68    
69     # returns the name of the local (package-specific)
70     # package configuration file
71     ghc-localpkgconf() {
72     echo "${PF}.conf"
73     }
74    
75 kosmikus 1.3 # make a ghci foo.o file from a libfoo.a file
76     ghc-makeghcilib() {
77     local outfile
78     outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
79 kosmikus 1.4 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1
80 kosmikus 1.3 }
81    
82     # creates a local (package-specific) package
83     # configuration file; the arguments should be
84     # uninstalled package description files, each
85     # containing a single package description; if
86     # no arguments are given, the resulting file is
87     # empty
88 kosmikus 1.1 ghc-setup-pkg() {
89 kosmikus 1.3 local localpkgconf
90     localpkgconf="${S}/$(ghc-localpkgconf)"
91     echo '[' > ${localpkgconf}
92     while [ -n "$1" ]; do
93     cat "$1" >> ${localpkgconf}
94     shift
95     [ -n "$1" ] && echo ',' >> ${localpkgconf}
96     done
97     echo ']' >> ${localpkgconf}
98 kosmikus 1.1 }
99    
100     # moves the local (package-specific) package configuration
101     # file to its final destination
102     ghc-install-pkg() {
103     mkdir -p ${D}/$(ghc-confdir)
104     cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \
105     > ${D}/$(ghc-confdir)/$(ghc-localpkgconf)
106     }
107    
108     # registers all packages in the local (package-specific)
109     # package configuration file
110     ghc-register-pkg() {
111     local localpkgconf
112 kosmikus 1.3 localpkgconf="$(ghc-confdir)/$1"
113 kosmikus 1.1 for pkg in $(ghc-listpkg ${localpkgconf}); do
114     einfo "Registering ${pkg} ..."
115     $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \
116 kosmikus 1.2 | $(ghc-getghcpkg) -u --force
117 kosmikus 1.1 done
118     }
119    
120     # re-adds all available .conf files to the global
121     # package conf file, to be used on a ghc reinstallation
122     ghc-reregister() {
123     einfo "Re-adding packages ..."
124     ewarn "This may cause several warnings, but they should be harmless."
125 kosmikus 1.5 if [ -d "$(ghc-confdir)" ]; then
126     pushd $(ghc-confdir)
127     for conf in *.conf; do
128     einfo "Processing ${conf} ..."
129     ghc-register-pkg ${conf}
130     done
131     popd
132     fi
133 kosmikus 1.1 }
134    
135     # unregisters ...
136     ghc-unregister-pkg() {
137     local localpkgconf
138 kosmikus 1.3 localpkgconf="$(ghc-confdir)/$1"
139 kosmikus 1.1 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
140     einfo "Unregistering ${pkg} ..."
141     $(ghc-getghcpkg) -r ${pkg} --force
142     done
143     }
144    
145     # help-function: reverse a list
146     ghc-reverse() {
147     local result
148     for i in $1; do
149     result="${i} ${result}"
150     done
151     echo ${result}
152     }
153    
154     # show the packages in a package configuration file
155     ghc-listpkg() {
156 kosmikus 1.6 local ghcpkgcall
157     if ghc-cabal; then
158     echo $($(ghc-getghcpkg) list -f $1) \
159     | sed \
160     -e "s|^.*${f}:\([^:]*\).*$|\1|" \
161     -e "s|/.*$||" \
162     -e "s|,| |g" -e "s|[()]||g"
163     else
164     echo $($(ghc-getghcpkgbin) -l -f $1) \
165 kosmikus 1.1 | cut -f2 -d':' \
166     | sed 's:,: :g'
167 kosmikus 1.6 fi
168 kosmikus 1.1 }
169    
170     # exported function: registers the package-specific package
171     # configuration file
172     ghc-package_pkg_postinst() {
173     ghc-register-pkg $(ghc-localpkgconf)
174     }
175    
176     # exported function: unregisters the package-specific
177     # package configuration file, under the condition that
178     # after removal, no other instances of the package will
179     # be left (necessary check because ghc packages are not
180     # versioned)
181     ghc-package_pkg_prerm() {
182     has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
183     || ghc-unregister-pkg $(ghc-localpkgconf)
184     }
185    
186     EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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