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 1.14 2005/07/11 15:08:06 swegener Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.20 2006/10/04 17:45:35 kosmikus Exp $ |
4 | # |
4 | # |
5 | # Author: Andres Loeh <kosmikus@gentoo.org> |
5 | # Author: Andres Loeh <kosmikus@gentoo.org> |
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6 | # Maintained by: Haskell herd <haskell@gentoo.org> |
6 | # |
7 | # |
7 | # This eclass helps with the Glasgow Haskell Compiler's package |
8 | # This eclass helps with the Glasgow Haskell Compiler's package |
8 | # configuration utility. |
9 | # configuration utility. |
9 | |
10 | |
10 | inherit versionator |
11 | inherit versionator |
11 | |
12 | |
12 | |
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13 | # promote /opt/ghc/bin to a better position in the search path |
13 | # promote /opt/ghc/bin to a better position in the search path |
14 | PATH="/usr/bin:/opt/ghc/bin:${PATH}" |
14 | PATH="/usr/bin:/opt/ghc/bin:${PATH}" |
15 | |
15 | |
16 | # for later configuration using environment variables/ |
16 | # for later configuration using environment variables/ |
17 | # returns the name of the ghc executable |
17 | # returns the name of the ghc executable |
18 | ghc-getghc() { |
18 | ghc-getghc() { |
19 | echo "ghc" |
19 | echo "$(which ghc)" |
20 | } |
20 | } |
21 | |
21 | |
22 | # returns the name of the ghc-pkg executable |
22 | # returns the name of the ghc-pkg executable |
23 | ghc-getghcpkg() { |
23 | ghc-getghcpkg() { |
24 | echo "ghc-pkg" |
24 | echo "$(which ghc-pkg)" |
25 | } |
25 | } |
26 | |
26 | |
27 | # returns the name of the ghc-pkg binary (ghc-pkg |
27 | # returns the name of the ghc-pkg binary (ghc-pkg |
28 | # itself usually is a shell script, and we have to |
28 | # itself usually is a shell script, and we have to |
29 | # bypass the script under certain circumstances); |
29 | # bypass the script under certain circumstances); |
30 | # for Cabal, we add the global package config file, |
30 | # for Cabal, we add an empty global package config file, |
31 | # because for some reason that's required |
31 | # because for some reason the global package file |
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32 | # must be specified |
32 | ghc-getghcpkgbin() { |
33 | ghc-getghcpkgbin() { |
33 | if ghc-cabal; then |
34 | if ghc-cabal; then |
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35 | echo '[]' > "${T}/empty.conf" |
34 | echo $(ghc-libdir)/"ghc-pkg.bin" "--global-conf=$(ghc-libdir)/package.conf" |
36 | echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" |
35 | else |
37 | else |
36 | echo $(ghc-libdir)/"ghc-pkg.bin" |
38 | echo "$(ghc-libdir)/ghc-pkg.bin" |
37 | fi |
39 | fi |
38 | } |
40 | } |
39 | |
41 | |
40 | # returns the version of ghc |
42 | # returns the version of ghc |
41 | _GHC_VERSION_CACHE="" |
43 | _GHC_VERSION_CACHE="" |
42 | ghc-version() { |
44 | ghc-version() { |
43 | if [[ -z "${_GHC_VERSION_CACHE}" ]]; then |
45 | if [[ -z "${_GHC_VERSION_CACHE}" ]]; then |
44 | _GHC_VERSION_CACHE="$($(ghc-getghc) --version | sed 's:^.*version ::')" |
46 | _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" |
45 | fi |
47 | fi |
46 | echo "${_GHC_VERSION_CACHE}" |
48 | echo "${_GHC_VERSION_CACHE}" |
47 | } |
49 | } |
48 | |
50 | |
49 | # returns true for ghc >= 6.4 |
51 | # this function can be used to determine if ghc itself |
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52 | # uses the Cabal package format; it has nothing to do |
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53 | # with the Cabal libraries ... ghc uses the Cabal package |
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54 | # format since version 6.4 |
50 | ghc-cabal() { |
55 | ghc-cabal() { |
51 | version_is_at_least "6.4" "$(ghc-version)" |
56 | version_is_at_least "6.4" "$(ghc-version)" |
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57 | } |
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58 | |
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59 | # return the best version of the Cabal library that is available |
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60 | ghc-bestcabalversion() { |
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61 | local cabalpackage |
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62 | local cabalversion |
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63 | if ghc-cabal; then |
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64 | # We ask portage, not ghc, so that we only pick up |
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65 | # portage-installed cabal versions. |
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66 | cabalpackage="$(best_version dev-haskell/cabal)" |
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67 | cabalversion="${cabalpackage#dev-haskell/cabal-}" |
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68 | cabalversion="${cabalversion%-r*}" |
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69 | cabalversion="${cabalversion%_pre*}" |
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70 | echo "Cabal-${cabalversion}" |
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71 | else |
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72 | # older ghc's don't support package versioning |
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73 | echo Cabal |
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74 | fi |
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75 | } |
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76 | |
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77 | # check if a standalone Cabal version is available for the |
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78 | # currently used ghc; takes minimal version of Cabal as |
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79 | # an optional argument |
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80 | ghc-sanecabal() { |
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81 | local f |
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82 | local version |
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83 | if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi |
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84 | for f in $(ghc-confdir)/cabal-*; do |
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85 | [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return |
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86 | done |
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87 | return 1 |
52 | } |
88 | } |
53 | |
89 | |
54 | # returns the library directory |
90 | # returns the library directory |
55 | _GHC_LIBDIR_CACHE="" |
91 | _GHC_LIBDIR_CACHE="" |
56 | ghc-libdir() { |
92 | ghc-libdir() { |
… | |
… | |
60 | echo "${_GHC_LIBDIR_CACHE}" |
96 | echo "${_GHC_LIBDIR_CACHE}" |
61 | } |
97 | } |
62 | |
98 | |
63 | # returns the (Gentoo) library configuration directory |
99 | # returns the (Gentoo) library configuration directory |
64 | ghc-confdir() { |
100 | ghc-confdir() { |
65 | echo $(ghc-libdir)/gentoo |
101 | echo "$(ghc-libdir)/gentoo" |
66 | } |
102 | } |
67 | |
103 | |
68 | # returns the name of the local (package-specific) |
104 | # returns the name of the local (package-specific) |
69 | # package configuration file |
105 | # package configuration file |
70 | ghc-localpkgconf() { |
106 | ghc-localpkgconf() { |
… | |
… | |
73 | |
109 | |
74 | # make a ghci foo.o file from a libfoo.a file |
110 | # make a ghci foo.o file from a libfoo.a file |
75 | ghc-makeghcilib() { |
111 | ghc-makeghcilib() { |
76 | local outfile |
112 | local outfile |
77 | outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" |
113 | outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" |
78 | ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 |
114 | ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" |
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115 | } |
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116 | |
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117 | # tests if a ghc package exists |
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118 | ghc-package-exists() { |
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119 | $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 |
79 | } |
120 | } |
80 | |
121 | |
81 | # creates a local (package-specific) package |
122 | # creates a local (package-specific) package |
82 | # configuration file; the arguments should be |
123 | # configuration file; the arguments should be |
83 | # uninstalled package description files, each |
124 | # uninstalled package description files, each |
… | |
… | |
85 | # no arguments are given, the resulting file is |
126 | # no arguments are given, the resulting file is |
86 | # empty |
127 | # empty |
87 | ghc-setup-pkg() { |
128 | ghc-setup-pkg() { |
88 | local localpkgconf |
129 | local localpkgconf |
89 | localpkgconf="${S}/$(ghc-localpkgconf)" |
130 | localpkgconf="${S}/$(ghc-localpkgconf)" |
90 | echo '[]' > ${localpkgconf} |
131 | echo '[]' > "${localpkgconf}" |
91 | for pkg in $*; do |
132 | for pkg in $*; do |
92 | $(ghc-getghcpkgbin) -f ${localpkgconf} -u --force \ |
133 | $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ |
93 | < ${pkg} || die "failed to register ${pkg}" |
134 | < "${pkg}" || die "failed to register ${pkg}" |
94 | done |
135 | done |
95 | } |
136 | } |
96 | |
137 | |
97 | # fixes the library and import directories path |
138 | # fixes the library and import directories path |
98 | # of the package configuration file |
139 | # of the package configuration file |
99 | ghc-fixlibpath() { |
140 | ghc-fixlibpath() { |
100 | sed -i "s|$1|$(ghc-libdir)|g" ${S}/$(ghc-localpkgconf) |
141 | sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" |
101 | if [[ -n "$2" ]]; then |
142 | if [[ -n "$2" ]]; then |
102 | sed -i "s|$2|$(ghc-libdir)/imports|g" ${S}/$(ghc-localpkgconf) |
143 | sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" |
103 | fi |
144 | fi |
104 | } |
145 | } |
105 | |
146 | |
106 | # moves the local (package-specific) package configuration |
147 | # moves the local (package-specific) package configuration |
107 | # file to its final destination |
148 | # file to its final destination |
108 | ghc-install-pkg() { |
149 | ghc-install-pkg() { |
109 | mkdir -p ${D}/$(ghc-confdir) |
150 | mkdir -p "${D}/$(ghc-confdir)" |
110 | cat ${S}/$(ghc-localpkgconf) | sed "s|${D}||g" \ |
151 | cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ |
111 | > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) |
152 | > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" |
112 | } |
153 | } |
113 | |
154 | |
114 | # registers all packages in the local (package-specific) |
155 | # registers all packages in the local (package-specific) |
115 | # package configuration file |
156 | # package configuration file |
116 | ghc-register-pkg() { |
157 | ghc-register-pkg() { |
117 | local localpkgconf |
158 | local localpkgconf |
118 | localpkgconf="$(ghc-confdir)/$1" |
159 | localpkgconf="$(ghc-confdir)/$1" |
119 | if [[ -f ${localpkgconf} ]]; then |
160 | if [[ -f "${localpkgconf}" ]]; then |
120 | for pkg in $(ghc-listpkg ${localpkgconf}); do |
161 | for pkg in $(ghc-listpkg "${localpkgconf}"); do |
121 | ebegin "Registering ${pkg} " |
162 | ebegin "Registering ${pkg} " |
122 | $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ |
163 | $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ |
123 | | $(ghc-getghcpkg) -u --force > /dev/null |
164 | | $(ghc-getghcpkg) -u --force > /dev/null |
124 | eend $? |
165 | eend $? |
125 | done |
166 | done |
126 | fi |
167 | fi |
127 | } |
168 | } |
128 | |
169 | |
129 | # re-adds all available .conf files to the global |
170 | # re-adds all available .conf files to the global |
130 | # package conf file, to be used on a ghc reinstallation |
171 | # package conf file, to be used on a ghc reinstallation |
131 | ghc-reregister() { |
172 | ghc-reregister() { |
132 | einfo "Re-adding packages ..." |
173 | einfo "Re-adding packages (may cause several harmless warnings) ..." |
133 | einfo "(This may cause several warnings, but they should be harmless.)" |
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134 | if [ -d "$(ghc-confdir)" ]; then |
174 | if [ -d "$(ghc-confdir)" ]; then |
135 | pushd $(ghc-confdir) > /dev/null |
175 | pushd "$(ghc-confdir)" > /dev/null |
136 | for conf in *.conf; do |
176 | for conf in *.conf; do |
137 | einfo "Processing ${conf} ..." |
177 | # einfo "Processing ${conf} ..." |
138 | ghc-register-pkg ${conf} |
178 | ghc-register-pkg "${conf}" |
139 | done |
179 | done |
140 | popd > /dev/null |
180 | popd > /dev/null |
141 | fi |
181 | fi |
142 | } |
182 | } |
143 | |
183 | |
144 | # unregisters ... |
184 | # unregisters a package configuration file |
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185 | # protected are all packages that are still contained in |
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186 | # another package configuration file |
145 | ghc-unregister-pkg() { |
187 | ghc-unregister-pkg() { |
146 | local localpkgconf |
188 | local localpkgconf |
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189 | local i |
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190 | local pkg |
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191 | local protected |
147 | localpkgconf="$(ghc-confdir)/$1" |
192 | localpkgconf="$(ghc-confdir)/$1" |
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193 | |
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194 | for i in $(ghc-confdir)/*.conf; do |
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195 | [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})" |
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196 | done |
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197 | # protected now contains the packages that cannot be unregistered yet |
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198 | |
148 | if [[ -f ${localpkgconf} ]]; then |
199 | if [[ -f "${localpkgconf}" ]]; then |
149 | for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do |
200 | for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do |
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201 | if $(ghc-elem "${pkg}" "${protected}"); then |
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202 | einfo "Package ${pkg} is protected." |
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203 | elif ! ghc-package-exists "${pkg}"; then |
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204 | : |
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205 | # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." |
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206 | else |
150 | ebegin "Unregistering ${pkg} " |
207 | ebegin "Unregistering ${pkg} " |
151 | $(ghc-getghcpkg) -r ${pkg} --force > /dev/null |
208 | $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null |
152 | eend $? |
209 | eend $? |
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210 | fi |
153 | done |
211 | done |
154 | fi |
212 | fi |
155 | } |
213 | } |
156 | |
214 | |
157 | # help-function: reverse a list |
215 | # help-function: reverse a list |
158 | ghc-reverse() { |
216 | ghc-reverse() { |
159 | local result |
217 | local result |
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218 | local i |
160 | for i in $1; do |
219 | for i in $1; do |
161 | result="${i} ${result}" |
220 | result="${i} ${result}" |
162 | done |
221 | done |
163 | echo ${result} |
222 | echo "${result}" |
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223 | } |
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224 | |
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225 | # help-function: element-check |
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226 | ghc-elem() { |
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227 | local i |
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228 | for i in $2; do |
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229 | [[ "$1" == "${i}" ]] && return 0 |
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230 | done |
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231 | return 1 |
164 | } |
232 | } |
165 | |
233 | |
166 | # show the packages in a package configuration file |
234 | # show the packages in a package configuration file |
167 | ghc-listpkg() { |
235 | ghc-listpkg() { |
168 | local ghcpkgcall |
236 | local ghcpkgcall |
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237 | local i |
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238 | for i in $*; do |
169 | if ghc-cabal; then |
239 | if ghc-cabal; then |
170 | echo $($(ghc-getghcpkg) list -f $1) \ |
240 | echo $($(ghc-getghcpkg) list -f "${i}") \ |
171 | | sed \ |
241 | | sed \ |
172 | -e "s|^.*${f}:\([^:]*\).*$|\1|" \ |
242 | -e "s|^.*${i}:\([^:]*\).*$|\1|" \ |
173 | -e "s|/.*$||" \ |
243 | -e "s|/.*$||" \ |
174 | -e "s|,| |g" -e "s|[()]||g" |
244 | -e "s|,| |g" -e "s|[()]||g" |
175 | else |
245 | else |
176 | echo $($(ghc-getghcpkgbin) -l -f $1) \ |
246 | echo $($(ghc-getghcpkgbin) -l -f "${i}") \ |
177 | | cut -f2 -d':' \ |
247 | | cut -f2 -d':' \ |
178 | | sed 's:,: :g' |
248 | | sed 's:,: :g' |
179 | fi |
249 | fi |
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250 | done |
180 | } |
251 | } |
181 | |
252 | |
182 | # exported function: registers the package-specific package |
253 | # exported function: registers the package-specific package |
183 | # configuration file |
254 | # configuration file |
184 | ghc-package_pkg_postinst() { |
255 | ghc-package_pkg_postinst() { |
185 | ghc-register-pkg $(ghc-localpkgconf) |
256 | ghc-register-pkg "$(ghc-localpkgconf)" |
186 | } |
257 | } |
187 | |
258 | |
188 | # exported function: unregisters the package-specific |
259 | # exported function: unregisters the package-specific package |
189 | # package configuration file, under the condition that |
260 | # configuration file; a package contained therein is unregistered |
190 | # after removal, no other instances of the package will |
261 | # only if it the same package is not also contained in another |
191 | # be left (necessary check because ghc packages are not |
262 | # package configuration file ... |
192 | # versioned) |
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193 | ghc-package_pkg_prerm() { |
263 | ghc-package_pkg_prerm() { |
194 | has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \ |
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195 | || ghc-unregister-pkg $(ghc-localpkgconf) |
264 | ghc-unregister-pkg "$(ghc-localpkgconf)" |
196 | } |
265 | } |
197 | |
266 | |
198 | EXPORT_FUNCTIONS pkg_postinst pkg_prerm |
267 | EXPORT_FUNCTIONS pkg_postinst pkg_prerm |