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Revision 1.3 - (hide annotations) (download)
Thu Nov 4 13:13:59 2004 UTC (10 years, 1 month ago) by kosmikus
Branch: MAIN
Changes since 1.2: +25 -6 lines
* added a ghc-makeghclib function, and generalized ghc-setup-pkg

1 kosmikus 1.1 # Copyright 1999-2004 Gentoo Foundation
2     # Distributed under the terms of the GNU General Public License v2
3 kosmikus 1.3 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.2 2004/11/03 20:38:35 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     ECLASS="ghc-package"
11     INHERITED="$INHERITED $ECLASS"
12    
13     PATH="${PATH}:/opt/ghc/bin"
14    
15     # for later configuration using environment variables/
16     # returns the name of the ghc executable
17     ghc-getghc() {
18     echo "ghc"
19     }
20    
21     # returns the name of the ghc-pkg executable
22     ghc-getghcpkg() {
23     echo "ghc-pkg"
24     }
25    
26     # returns the name of the ghc-pkg binary (ghc-pkg
27     # itself usually is a shell script, and we have to
28     # bypass the script under certain circumstances)
29     ghc-getghcpkgbin() {
30     echo $(ghc-libdir)/"ghc-pkg.bin"
31     }
32    
33     # returns the version of ghc
34     ghc-version() {
35     $(ghc-getghc) --version | sed 's:^.*version ::'
36     }
37    
38     # returns the library directory
39     ghc-libdir() {
40     $(ghc-getghc) --print-libdir
41     }
42    
43     # returns the (Gentoo) library configuration directory
44     ghc-confdir() {
45     echo $(ghc-libdir)/gentoo
46     }
47    
48     # returns the name of the local (package-specific)
49     # package configuration file
50     ghc-localpkgconf() {
51     echo "${PF}.conf"
52     }
53    
54 kosmikus 1.3 # make a ghci foo.o file from a libfoo.a file
55     ghc-makeghcilib() {
56     local outfile
57     outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
58     ld --relocatable --discard-all --output="${outfile}" $1
59     }
60    
61     # creates a local (package-specific) package
62     # configuration file; the arguments should be
63     # uninstalled package description files, each
64     # containing a single package description; if
65     # no arguments are given, the resulting file is
66     # empty
67 kosmikus 1.1 ghc-setup-pkg() {
68 kosmikus 1.3 local localpkgconf
69     localpkgconf="${S}/$(ghc-localpkgconf)"
70     echo '[' > ${localpkgconf}
71     while [ -n "$1" ]; do
72     cat "$1" >> ${localpkgconf}
73     shift
74     [ -n "$1" ] && echo ',' >> ${localpkgconf}
75     done
76     echo ']' >> ${localpkgconf}
77 kosmikus 1.1 }
78    
79     # moves the local (package-specific) package configuration
80     # file to its final destination
81     ghc-install-pkg() {
82     mkdir -p ${D}/$(ghc-confdir)
83     cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \
84     > ${D}/$(ghc-confdir)/$(ghc-localpkgconf)
85     }
86    
87     # registers all packages in the local (package-specific)
88     # package configuration file
89     ghc-register-pkg() {
90     local localpkgconf
91 kosmikus 1.3 localpkgconf="$(ghc-confdir)/$1"
92 kosmikus 1.1 for pkg in $(ghc-listpkg ${localpkgconf}); do
93     einfo "Registering ${pkg} ..."
94     $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \
95 kosmikus 1.2 | $(ghc-getghcpkg) -u --force
96 kosmikus 1.1 done
97     }
98    
99     # re-adds all available .conf files to the global
100     # package conf file, to be used on a ghc reinstallation
101     ghc-reregister() {
102     einfo "Re-adding packages ..."
103     ewarn "This may cause several warnings, but they should be harmless."
104     pushd $(ghc-confdir)
105     for conf in *.conf; do
106     einfo "Processing ${conf} ..."
107     ghc-register-pkg ${conf}
108     done
109     popd
110     }
111    
112     # unregisters ...
113     ghc-unregister-pkg() {
114     local localpkgconf
115 kosmikus 1.3 localpkgconf="$(ghc-confdir)/$1"
116 kosmikus 1.1 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
117     einfo "Unregistering ${pkg} ..."
118     $(ghc-getghcpkg) -r ${pkg} --force
119     done
120     }
121    
122     # help-function: reverse a list
123     ghc-reverse() {
124     local result
125     for i in $1; do
126     result="${i} ${result}"
127     done
128     echo ${result}
129     }
130    
131     # show the packages in a package configuration file
132     ghc-listpkg() {
133     [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \
134     | cut -f2 -d':' \
135     | sed 's:,: :g'
136     }
137    
138     # exported function: registers the package-specific package
139     # configuration file
140     ghc-package_pkg_postinst() {
141     ghc-register-pkg $(ghc-localpkgconf)
142     }
143    
144     # exported function: unregisters the package-specific
145     # package configuration file, under the condition that
146     # after removal, no other instances of the package will
147     # be left (necessary check because ghc packages are not
148     # versioned)
149     ghc-package_pkg_prerm() {
150     has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
151     || ghc-unregister-pkg $(ghc-localpkgconf)
152     }
153    
154     EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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