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 1.4 2004/11/04 14:16:14 kosmikus Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.25 2007/12/13 04:42:48 dcoutts 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 | ECLASS="ghc-package" |
11 | inherit versionator |
11 | INHERITED="$INHERITED $ECLASS" |
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12 | |
12 | |
13 | PATH="${PATH}:/opt/ghc/bin" |
13 | # promote /opt/ghc/bin to a better position in the search path |
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14 | PATH="/usr/bin:/opt/ghc/bin:${PATH}" |
14 | |
15 | |
15 | # for later configuration using environment variables/ |
16 | # for later configuration using environment variables/ |
16 | # returns the name of the ghc executable |
17 | # returns the name of the ghc executable |
17 | ghc-getghc() { |
18 | ghc-getghc() { |
18 | echo "ghc" |
19 | type -P ghc |
19 | } |
20 | } |
20 | |
21 | |
21 | # returns the name of the ghc-pkg executable |
22 | # returns the name of the ghc-pkg executable |
22 | ghc-getghcpkg() { |
23 | ghc-getghcpkg() { |
23 | echo "ghc-pkg" |
24 | type -P ghc-pkg |
24 | } |
25 | } |
25 | |
26 | |
26 | # returns the name of the ghc-pkg binary (ghc-pkg |
27 | # returns the name of the ghc-pkg binary (ghc-pkg |
27 | # itself usually is a shell script, and we have to |
28 | # itself usually is a shell script, and we have to |
28 | # bypass the script under certain circumstances) |
29 | # bypass the script under certain circumstances); |
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30 | # for Cabal, we add an empty global package config file, |
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31 | # because for some reason the global package file |
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32 | # must be specified |
29 | ghc-getghcpkgbin() { |
33 | ghc-getghcpkgbin() { |
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34 | if ghc-cabal; then |
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35 | echo '[]' > "${T}/empty.conf" |
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36 | echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf" |
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37 | else |
30 | echo $(ghc-libdir)/"ghc-pkg.bin" |
38 | echo "$(ghc-libdir)/ghc-pkg.bin" |
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39 | fi |
31 | } |
40 | } |
32 | |
41 | |
33 | # returns the version of ghc |
42 | # returns the version of ghc |
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43 | _GHC_VERSION_CACHE="" |
34 | ghc-version() { |
44 | ghc-version() { |
35 | $(ghc-getghc) --version | sed 's:^.*version ::' |
45 | if [[ -z "${_GHC_VERSION_CACHE}" ]]; then |
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46 | _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)" |
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47 | fi |
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48 | echo "${_GHC_VERSION_CACHE}" |
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49 | } |
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50 | |
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51 | # this function can be used to determine if ghc itself |
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52 | # uses the Cabal package format; it has nothing to do |
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53 | # with the Cabal libraries ... ghc uses the Cabal package |
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54 | # format since version 6.4 |
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55 | ghc-cabal() { |
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56 | version_is_at_least "6.4" "$(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 cabalversion |
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62 | if ghc-cabal; then |
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63 | # We ask portage, not ghc, so that we only pick up |
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64 | # portage-installed cabal versions. |
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65 | cabalversion="$(ghc-extractportageversion dev-haskell/cabal)" |
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66 | echo "Cabal-${cabalversion}" |
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67 | else |
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68 | # older ghc's don't support package versioning |
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69 | echo Cabal |
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70 | fi |
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71 | } |
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72 | |
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73 | # check if a standalone Cabal version is available for the |
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74 | # currently used ghc; takes minimal version of Cabal as |
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75 | # an optional argument |
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76 | ghc-sanecabal() { |
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77 | local f |
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78 | local version |
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79 | if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi |
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80 | for f in $(ghc-confdir)/cabal-*; do |
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81 | [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return |
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82 | done |
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83 | return 1 |
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84 | } |
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85 | |
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86 | # checks if ghc and ghc-bin are installed in the same version |
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87 | # (if they're both installed); if this is not the case, we |
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88 | # unfortunately cannot trust portage's dependency resolution |
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89 | ghc-saneghc() { |
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90 | local ghcversion |
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91 | local ghcbinversion |
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92 | if [[ "${PN}" == "ghc" || "${PN}" == "ghc-bin" ]]; then |
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93 | return |
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94 | fi |
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95 | if has_version dev-lang/ghc && has_version dev-lang/ghc-bin; then |
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96 | ghcversion="$(ghc-extractportageversion dev-lang/ghc)" |
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97 | ghcbinversion="$(ghc-extractportageversion dev-lang/ghc-bin)" |
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98 | if [[ "${ghcversion}" != "${ghcbinversion}" ]]; then |
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99 | return 1 |
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100 | fi |
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101 | fi |
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102 | return |
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103 | } |
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104 | |
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105 | # extract the version of a portage-installed package |
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106 | ghc-extractportageversion() { |
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107 | local pkg |
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108 | local version |
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109 | pkg="$(best_version $1)" |
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110 | version="${pkg#$1-}" |
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111 | version="${version%-r*}" |
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112 | version="${version%_pre*}" |
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113 | echo "${version}" |
36 | } |
114 | } |
37 | |
115 | |
38 | # returns the library directory |
116 | # returns the library directory |
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117 | _GHC_LIBDIR_CACHE="" |
39 | ghc-libdir() { |
118 | ghc-libdir() { |
40 | $(ghc-getghc) --print-libdir |
119 | if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then |
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120 | _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)" |
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121 | fi |
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122 | echo "${_GHC_LIBDIR_CACHE}" |
41 | } |
123 | } |
42 | |
124 | |
43 | # returns the (Gentoo) library configuration directory |
125 | # returns the (Gentoo) library configuration directory |
44 | ghc-confdir() { |
126 | ghc-confdir() { |
45 | echo $(ghc-libdir)/gentoo |
127 | echo "$(ghc-libdir)/gentoo" |
46 | } |
128 | } |
47 | |
129 | |
48 | # returns the name of the local (package-specific) |
130 | # returns the name of the local (package-specific) |
49 | # package configuration file |
131 | # package configuration file |
50 | ghc-localpkgconf() { |
132 | ghc-localpkgconf() { |
… | |
… | |
53 | |
135 | |
54 | # make a ghci foo.o file from a libfoo.a file |
136 | # make a ghci foo.o file from a libfoo.a file |
55 | ghc-makeghcilib() { |
137 | ghc-makeghcilib() { |
56 | local outfile |
138 | local outfile |
57 | outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" |
139 | outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')" |
58 | ld --relocatable --discard-all --output="${outfile}" --whole-archive $1 |
140 | ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1" |
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141 | } |
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142 | |
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143 | # tests if a ghc package exists |
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144 | ghc-package-exists() { |
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145 | $(ghc-getghcpkg) -s "$1" > /dev/null 2>&1 |
59 | } |
146 | } |
60 | |
147 | |
61 | # creates a local (package-specific) package |
148 | # creates a local (package-specific) package |
62 | # configuration file; the arguments should be |
149 | # configuration file; the arguments should be |
63 | # uninstalled package description files, each |
150 | # uninstalled package description files, each |
… | |
… | |
65 | # no arguments are given, the resulting file is |
152 | # no arguments are given, the resulting file is |
66 | # empty |
153 | # empty |
67 | ghc-setup-pkg() { |
154 | ghc-setup-pkg() { |
68 | local localpkgconf |
155 | local localpkgconf |
69 | localpkgconf="${S}/$(ghc-localpkgconf)" |
156 | localpkgconf="${S}/$(ghc-localpkgconf)" |
70 | echo '[' > ${localpkgconf} |
157 | echo '[]' > "${localpkgconf}" |
71 | while [ -n "$1" ]; do |
158 | for pkg in $*; do |
72 | cat "$1" >> ${localpkgconf} |
159 | $(ghc-getghcpkgbin) -f "${localpkgconf}" -u --force \ |
73 | shift |
160 | < "${pkg}" || die "failed to register ${pkg}" |
74 | [ -n "$1" ] && echo ',' >> ${localpkgconf} |
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75 | done |
161 | done |
76 | echo ']' >> ${localpkgconf} |
162 | } |
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163 | |
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164 | # fixes the library and import directories path |
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165 | # of the package configuration file |
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166 | ghc-fixlibpath() { |
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167 | sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)" |
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168 | if [[ -n "$2" ]]; then |
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169 | sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)" |
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170 | fi |
77 | } |
171 | } |
78 | |
172 | |
79 | # moves the local (package-specific) package configuration |
173 | # moves the local (package-specific) package configuration |
80 | # file to its final destination |
174 | # file to its final destination |
81 | ghc-install-pkg() { |
175 | ghc-install-pkg() { |
82 | mkdir -p ${D}/$(ghc-confdir) |
176 | mkdir -p "${D}/$(ghc-confdir)" |
83 | cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \ |
177 | cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \ |
84 | > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) |
178 | > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)" |
85 | } |
179 | } |
86 | |
180 | |
87 | # registers all packages in the local (package-specific) |
181 | # registers all packages in the local (package-specific) |
88 | # package configuration file |
182 | # package configuration file |
89 | ghc-register-pkg() { |
183 | ghc-register-pkg() { |
90 | local localpkgconf |
184 | local localpkgconf |
91 | localpkgconf="$(ghc-confdir)/$1" |
185 | localpkgconf="$(ghc-confdir)/$1" |
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186 | if [[ -f "${localpkgconf}" ]]; then |
92 | for pkg in $(ghc-listpkg ${localpkgconf}); do |
187 | for pkg in $(ghc-listpkg "${localpkgconf}"); do |
93 | einfo "Registering ${pkg} ..." |
188 | ebegin "Registering ${pkg} " |
94 | $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ |
189 | $(ghc-getghcpkgbin) -f "${localpkgconf}" -s "${pkg}" \ |
95 | | $(ghc-getghcpkg) -u --force |
190 | | $(ghc-getghcpkg) -u --force > /dev/null |
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191 | eend $? |
96 | done |
192 | done |
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193 | fi |
97 | } |
194 | } |
98 | |
195 | |
99 | # re-adds all available .conf files to the global |
196 | # re-adds all available .conf files to the global |
100 | # package conf file, to be used on a ghc reinstallation |
197 | # package conf file, to be used on a ghc reinstallation |
101 | ghc-reregister() { |
198 | ghc-reregister() { |
102 | einfo "Re-adding packages ..." |
199 | einfo "Re-adding packages (may cause several harmless warnings) ..." |
103 | ewarn "This may cause several warnings, but they should be harmless." |
200 | if [ -d "$(ghc-confdir)" ]; then |
104 | pushd $(ghc-confdir) |
201 | pushd "$(ghc-confdir)" > /dev/null |
105 | for conf in *.conf; do |
202 | for conf in *.conf; do |
106 | einfo "Processing ${conf} ..." |
203 | # einfo "Processing ${conf} ..." |
107 | ghc-register-pkg ${conf} |
204 | ghc-register-pkg "${conf}" |
108 | done |
205 | done |
109 | popd |
206 | popd > /dev/null |
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207 | fi |
110 | } |
208 | } |
111 | |
209 | |
112 | # unregisters ... |
210 | # unregisters a package configuration file |
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211 | # protected are all packages that are still contained in |
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212 | # another package configuration file |
113 | ghc-unregister-pkg() { |
213 | ghc-unregister-pkg() { |
114 | local localpkgconf |
214 | local localpkgconf |
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215 | local i |
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216 | local pkg |
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217 | local protected |
115 | localpkgconf="$(ghc-confdir)/$1" |
218 | localpkgconf="$(ghc-confdir)/$1" |
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219 | |
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220 | for i in $(ghc-confdir)/*.conf; do |
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221 | [[ "${i}" != "${localpkgconf}" ]] && protected="${protected} $(ghc-listpkg ${i})" |
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222 | done |
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223 | # protected now contains the packages that cannot be unregistered yet |
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224 | |
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225 | if [[ -f "${localpkgconf}" ]]; then |
116 | for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do |
226 | for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do |
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227 | if $(ghc-elem "${pkg}" "${protected}"); then |
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228 | einfo "Package ${pkg} is protected." |
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229 | elif ! ghc-package-exists "${pkg}"; then |
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230 | : |
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231 | # einfo "Package ${pkg} is not installed for ghc-$(ghc-version)." |
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232 | else |
117 | einfo "Unregistering ${pkg} ..." |
233 | ebegin "Unregistering ${pkg} " |
118 | $(ghc-getghcpkg) -r ${pkg} --force |
234 | $(ghc-getghcpkg) -r "${pkg}" --force > /dev/null |
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235 | eend $? |
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236 | fi |
119 | done |
237 | done |
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238 | fi |
120 | } |
239 | } |
121 | |
240 | |
122 | # help-function: reverse a list |
241 | # help-function: reverse a list |
123 | ghc-reverse() { |
242 | ghc-reverse() { |
124 | local result |
243 | local result |
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244 | local i |
125 | for i in $1; do |
245 | for i in $1; do |
126 | result="${i} ${result}" |
246 | result="${i} ${result}" |
127 | done |
247 | done |
128 | echo ${result} |
248 | echo "${result}" |
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249 | } |
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250 | |
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251 | # help-function: element-check |
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252 | ghc-elem() { |
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253 | local i |
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254 | for i in $2; do |
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255 | [[ "$1" == "${i}" ]] && return 0 |
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256 | done |
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257 | return 1 |
129 | } |
258 | } |
130 | |
259 | |
131 | # show the packages in a package configuration file |
260 | # show the packages in a package configuration file |
132 | ghc-listpkg() { |
261 | ghc-listpkg() { |
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262 | local ghcpkgcall |
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263 | local i |
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264 | for i in $*; do |
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265 | if ghc-cabal; then |
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266 | echo $($(ghc-getghcpkg) list -f "${i}") \ |
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267 | | sed \ |
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268 | -e "s|^.*${i}:\([^:]*\).*$|\1|" \ |
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269 | -e "s|/.*$||" \ |
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270 | -e "s|,| |g" -e "s|[(){}]||g" |
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271 | else |
133 | [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ |
272 | echo $($(ghc-getghcpkgbin) -l -f "${i}") \ |
134 | | cut -f2 -d':' \ |
273 | | cut -f2 -d':' \ |
135 | | sed 's:,: :g' |
274 | | sed 's:,: :g' |
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275 | fi |
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276 | done |
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277 | } |
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278 | |
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279 | # exported function: check if we have a consistent ghc installation |
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280 | ghc-package_pkg_setup() { |
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281 | if ! ghc-saneghc; then |
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282 | eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin" |
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283 | eerror "installed. Portage currently cannot work correctly with this setup." |
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284 | eerror "There are several possibilities to work around this problem:" |
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285 | eerror "(1) Up/downgrade ghc-bin to the same version as ghc." |
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286 | eerror "(2) Unmerge ghc-bin." |
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287 | eerror "(3) Unmerge ghc." |
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288 | eerror "You probably want option 1 or 2." |
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289 | die "Inconsistent versions of ghc and ghc-bin." |
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290 | fi |
136 | } |
291 | } |
137 | |
292 | |
138 | # exported function: registers the package-specific package |
293 | # exported function: registers the package-specific package |
139 | # configuration file |
294 | # configuration file |
140 | ghc-package_pkg_postinst() { |
295 | ghc-package_pkg_postinst() { |
141 | ghc-register-pkg $(ghc-localpkgconf) |
296 | ghc-register-pkg "$(ghc-localpkgconf)" |
142 | } |
297 | } |
143 | |
298 | |
144 | # exported function: unregisters the package-specific |
299 | # exported function: unregisters the package-specific package |
145 | # package configuration file, under the condition that |
300 | # configuration file; a package contained therein is unregistered |
146 | # after removal, no other instances of the package will |
301 | # only if it the same package is not also contained in another |
147 | # be left (necessary check because ghc packages are not |
302 | # package configuration file ... |
148 | # versioned) |
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149 | ghc-package_pkg_prerm() { |
303 | ghc-package_pkg_prerm() { |
150 | has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \ |
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151 | || ghc-unregister-pkg $(ghc-localpkgconf) |
304 | ghc-unregister-pkg "$(ghc-localpkgconf)" |
152 | } |
305 | } |
153 | |
306 | |
154 | EXPORT_FUNCTIONS pkg_postinst pkg_prerm |
307 | EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm |