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Revision 1.5 - (hide annotations) (download)
Wed Nov 24 15:05:49 2004 UTC (10 years ago) by kosmikus
Branch: MAIN
Changes since 1.4: +9 -7 lines
* check for existence of configuration directory prior to doing
  anything in ghc-reregister function

1 kosmikus 1.1 # Copyright 1999-2004 Gentoo Foundation
2     # Distributed under the terms of the GNU General Public License v2
3 kosmikus 1.5 # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.4 2004/11/04 14:16:14 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$:\1.o:')"
58 kosmikus 1.4 ld --relocatable --discard-all --output="${outfile}" --whole-archive $1
59 kosmikus 1.3 }
60    
61     # creates a local (package-specific) package
62     # configuration file; the arguments should be
63     # uninstalled package description files, each
64     # containing a single package description; if
65     # no arguments are given, the resulting file is
66     # empty
67 kosmikus 1.1 ghc-setup-pkg() {
68 kosmikus 1.3 local localpkgconf
69     localpkgconf="${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 | $(ghc-getghcpkg) -u --force
96 kosmikus 1.1 done
97     }
98    
99     # re-adds all available .conf files to the global
100     # package conf file, to be used on a ghc reinstallation
101     ghc-reregister() {
102     einfo "Re-adding packages ..."
103     ewarn "This may cause several warnings, but they should be harmless."
104 kosmikus 1.5 if [ -d "$(ghc-confdir)" ]; then
105     pushd $(ghc-confdir)
106     for conf in *.conf; do
107     einfo "Processing ${conf} ..."
108     ghc-register-pkg ${conf}
109     done
110     popd
111     fi
112 kosmikus 1.1 }
113    
114     # unregisters ...
115     ghc-unregister-pkg() {
116     local localpkgconf
117 kosmikus 1.3 localpkgconf="$(ghc-confdir)/$1"
118 kosmikus 1.1 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
119     einfo "Unregistering ${pkg} ..."
120     $(ghc-getghcpkg) -r ${pkg} --force
121     done
122     }
123    
124     # help-function: reverse a list
125     ghc-reverse() {
126     local result
127     for i in $1; do
128     result="${i} ${result}"
129     done
130     echo ${result}
131     }
132    
133     # show the packages in a package configuration file
134     ghc-listpkg() {
135     [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \
136     | cut -f2 -d':' \
137     | sed 's:,: :g'
138     }
139    
140     # exported function: registers the package-specific package
141     # configuration file
142     ghc-package_pkg_postinst() {
143     ghc-register-pkg $(ghc-localpkgconf)
144     }
145    
146     # exported function: unregisters the package-specific
147     # package configuration file, under the condition that
148     # after removal, no other instances of the package will
149     # be left (necessary check because ghc packages are not
150     # versioned)
151     ghc-package_pkg_prerm() {
152     has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
153     || ghc-unregister-pkg $(ghc-localpkgconf)
154     }
155    
156     EXPORT_FUNCTIONS pkg_postinst pkg_prerm

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