/[gentoo-x86]/eclass/ruby-fakegem.eclass
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1# Copyright 1999-2009 Gentoo Foundation 1# Copyright 1999-2011 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/ruby-fakegem.eclass,v 1.22 2010/07/29 09:38:09 flameeyes Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ruby-fakegem.eclass,v 1.32 2011/12/05 12:24:33 graaff Exp $
4# 4
5# @ECLASS: ruby-fakegem.eclass 5# @ECLASS: ruby-fakegem.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# Ruby herd <ruby@gentoo.org> 7# Ruby herd <ruby@gentoo.org>
8# 8# @AUTHOR:
9# Author: Diego E. Pettenò <flameeyes@gentoo.org> 9# Author: Diego E. Pettenò <flameeyes@gentoo.org>
10#
11# Author: Alex Legler <a3li@gentoo.org> 10# Author: Alex Legler <a3li@gentoo.org>
12#
13# @BLURB: An eclass for installing Ruby packages to behave like RubyGems. 11# @BLURB: An eclass for installing Ruby packages to behave like RubyGems.
14# @DESCRIPTION: 12# @DESCRIPTION:
15# This eclass allows to install arbitrary Ruby libraries (including Gems), 13# This eclass allows to install arbitrary Ruby libraries (including Gems),
16# providing integration into the RubyGems system even for "regular" packages. 14# providing integration into the RubyGems system even for "regular" packages.
17#
18 15
19inherit ruby-ng 16inherit ruby-ng
20 17
21# @ECLASS-VARIABLE: RUBY_FAKEGEM_NAME 18# @ECLASS-VARIABLE: RUBY_FAKEGEM_NAME
22# @DESCRIPTION: 19# @DESCRIPTION:
56 53
57# @ECLASS-VARIABLE: RUBY_FAKEGEM_REQUIRE_PATHS 54# @ECLASS-VARIABLE: RUBY_FAKEGEM_REQUIRE_PATHS
58# @DESCRIPTION: 55# @DESCRIPTION:
59# Extra require paths (beside lib) to add to the specification 56# Extra require paths (beside lib) to add to the specification
60# RUBY_FAKEGEM_REQUIRE_PATHS="" 57# RUBY_FAKEGEM_REQUIRE_PATHS=""
58
59# @ECLASS-VARIABLE: RUBY_FAKEGEM_GEMSPEC
60# @DESCRIPTION:
61# Filename of .gemspec file to install instead of generating a generic one.
62# RUBY_FAKEGEM_GEMSPEC=""
63
64# @ECLASS-VARIABLE: RUBY_FAKEGEM_EXTRAINSTALL
65# @DESCRIPTION:
66# List of files and directories relative to the top directory that also
67# get installed. Some gems provide extra files such as version information,
68# Rails generators, or data that needs to be installed as well.
69# RUBY_FAKEGEM_EXTRAINSTALL=""
61 70
62RUBY_FAKEGEM_NAME="${RUBY_FAKEGEM_NAME:-${PN}}" 71RUBY_FAKEGEM_NAME="${RUBY_FAKEGEM_NAME:-${PN}}"
63RUBY_FAKEGEM_VERSION="${RUBY_FAKEGEM_VERSION:-${PV/_pre/.pre}}" 72RUBY_FAKEGEM_VERSION="${RUBY_FAKEGEM_VERSION:-${PV/_pre/.pre}}"
64RUBY_FAKEGEM_SUFFIX="${RUBY_FAKEGEM_SUFFIX:-}" 73RUBY_FAKEGEM_SUFFIX="${RUBY_FAKEGEM_SUFFIX:-}"
65 74
82 ruby_add_bdepend "test? ( dev-ruby/rake )" 91 ruby_add_bdepend "test? ( dev-ruby/rake )"
83fi 92fi
84 93
85SRC_URI="mirror://rubygems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}${RUBY_FAKEGEM_SUFFIX:+-${RUBY_FAKEGEM_SUFFIX}}.gem" 94SRC_URI="mirror://rubygems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}${RUBY_FAKEGEM_SUFFIX:+-${RUBY_FAKEGEM_SUFFIX}}.gem"
86 95
96ruby_add_bdepend virtual/rubygems
87ruby_add_rdepend virtual/rubygems 97ruby_add_rdepend virtual/rubygems
88 98
89# @FUNCTION: ruby_fakegem_gemsdir 99# @FUNCTION: ruby_fakegem_gemsdir
90# @RETURN: Returns the gem data directory 100# @RETURN: Returns the gem data directory
91# @DESCRIPTION: 101# @DESCRIPTION:
92# This function returns the gems data directory for the ruby 102# This function returns the gems data directory for the ruby
93# implementation in question. 103# implementation in question.
94ruby_fakegem_gemsdir() { 104ruby_fakegem_gemsdir() {
95 local _gemsitedir=$(${RUBY} -r rbconfig -e 'print Config::CONFIG["sitelibdir"]' | sed -e 's:site_ruby:gems:') 105 has "${EAPI}" 2 && ! use prefix && EPREFIX=
106
107 local _gemsitedir=$(ruby_rbconfig_value 'sitelibdir')
108 _gemsitedir=${_gemsitedir//site_ruby/gems}
109 _gemsitedir=${_gemsitedir#${EPREFIX}}
96 110
97 [[ -z ${_gemsitedir} ]] && { 111 [[ -z ${_gemsitedir} ]] && {
98 eerror "Unable to find the gems dir" 112 eerror "Unable to find the gems dir"
99 die "Unable to find the gems dir" 113 die "Unable to find the gems dir"
100 } 114 }
129 insinto $(ruby_fakegem_gemsdir)/gems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}${newdirname} 143 insinto $(ruby_fakegem_gemsdir)/gems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}${newdirname}
130 newins "$1" ${newbasename} 144 newins "$1" ${newbasename}
131 ) || die "failed $0 $@" 145 ) || die "failed $0 $@"
132} 146}
133 147
148# @FUNCTION: ruby_fakegem_install_gemspec
149# @DESCRIPTION:
150# Install a .gemspec file for this package. Either use the file indicated
151# by the RUBY_FAKEGEM_GEMSPEC variable, or generate one using
152# ruby_fakegem_genspec.
153ruby_fakegem_install_gemspec() {
154 local gemspec="${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation}
155
156 (
157 if [[ ${RUBY_FAKEGEM_GEMSPEC} != "" ]]; then
158 ruby_fakegem_gemspec_gemspec ${RUBY_FAKEGEM_GEMSPEC} ${gemspec}
159 else
160 local metadata="${WORKDIR}"/${_ruby_implementation}/metadata
161
162 if [[ -e ${metadata} ]]; then
163 ruby_fakegem_metadata_gemspec ${metadata} ${gemspec}
164 else
165 ruby_fakegem_genspec ${gemspec}
166 fi
167 fi
168 ) || die "Unable to generate gemspec file."
169
170 insinto $(ruby_fakegem_gemsdir)/specifications
171 newins ${gemspec} ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec || die "Unable to install gemspec file."
172}
173
174# @FUNCTION: ruby_fakegem_gemspec_gemspec
175# @USAGE: gemspec-input gemspec-output
176# @DESCRIPTION:
177# Generates an installable version of the specification indicated by
178# RUBY_FAKEGEM_GEMSPEC. This file is eval'ed to produce a final specification
179# in a way similar to packaging the gemspec file.
180ruby_fakegem_gemspec_gemspec() {
181 ${RUBY} -e "puts eval(File::open('$1').read).to_ruby" > $2
182}
183
184# @FUNCTION: ruby_fakegem_metadata_gemspec
185# @USAGE: gemspec-metadata gemspec-output
186# @DESCRIPTION:
187# Generates an installable version of the specification indicated by
188# the metadata distributed by the gem itself. This is similar to how
189# rubygems creates an installation from a .gem file.
190ruby_fakegem_metadata_gemspec() {
191 ${RUBY} -r yaml -e "puts Gem::Specification.from_yaml(File::open('$1').read).to_ruby" > $2
192}
193
134# @FUNCTION: ruby_fakegem_genspec 194# @FUNCTION: ruby_fakegem_genspec
195# @USAGE: output-gemspec
135# @DESCRIPTION: 196# @DESCRIPTION:
136# Generates a gemspec for the package and places it into the "specifications" 197# Generates a gemspec for the package and places it into the "specifications"
137# directory of RubyGems. 198# directory of RubyGems.
199# If the metadata normally distributed with a gem is present then that is
200# used to generate the gemspec file.
201#
202# As a fallback we can generate our own version.
138# In the gemspec, the following values are set: name, version, summary, 203# In the gemspec, the following values are set: name, version, summary,
139# homepage, and require_paths=["lib"]. 204# homepage, and require_paths=["lib"].
140# See RUBY_FAKEGEM_NAME and RUBY_FAKEGEM_VERSION for setting name and version. 205# See RUBY_FAKEGEM_NAME and RUBY_FAKEGEM_VERSION for setting name and version.
141# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths. 206# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths.
142ruby_fakegem_genspec() { 207ruby_fakegem_genspec() {
143 (
144 local required_paths="'lib'" 208 local required_paths="'lib'"
145 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do 209 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do
146 required_paths="${required_paths}, '${path}'" 210 required_paths="${required_paths}, '${path}'"
147 done 211 done
148 212
149 # We use the _ruby_implementation variable to avoid having stray 213 # We use the _ruby_implementation variable to avoid having stray
150 # copies with different implementations; while for now we're using 214 # copies with different implementations; while for now we're using
151 # the same exact content, we might have differences in the future, 215 # the same exact content, we might have differences in the future,
152 # so better taking this into consideration. 216 # so better taking this into consideration.
153 local quoted_description=${DESCRIPTION//\"/\\\"} 217 local quoted_description=${DESCRIPTION//\"/\\\"}
154 cat - > "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} <<EOF 218 cat - > $1 <<EOF
155# generated by ruby-fakegem.eclass $Revision: 1.22 $ 219# generated by ruby-fakegem.eclass $Revision: 1.32 $
156Gem::Specification.new do |s| 220Gem::Specification.new do |s|
157 s.name = "${RUBY_FAKEGEM_NAME}" 221 s.name = "${RUBY_FAKEGEM_NAME}"
158 s.version = "${RUBY_FAKEGEM_VERSION}" 222 s.version = "${RUBY_FAKEGEM_VERSION}"
159 s.summary = "${quoted_description}" 223 s.summary = "${quoted_description}"
160 s.homepage = "${HOMEPAGE}" 224 s.homepage = "${HOMEPAGE}"
161 s.require_paths = [${required_paths}] 225 s.require_paths = [${required_paths}]
162end 226end
163EOF 227EOF
164
165 insinto $(ruby_fakegem_gemsdir)/specifications
166 newins "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec
167 ) || die "Unable to install fake gemspec"
168} 228}
169 229
170# @FUNCTION: ruby_fakegem_binwrapper 230# @FUNCTION: ruby_fakegem_binwrapper
171# @USAGE: command [path] 231# @USAGE: command [path]
172# @DESCRIPTION: 232# @DESCRIPTION:
190 for implementation in ${USE_RUBY}; do 250 for implementation in ${USE_RUBY}; do
191 # ignore non-enabled implementations 251 # ignore non-enabled implementations
192 use ruby_targets_${implementation} || continue 252 use ruby_targets_${implementation} || continue
193 if [ -z $rubycmd ]; then 253 if [ -z $rubycmd ]; then
194 # if no other implementation was set before, set it. 254 # if no other implementation was set before, set it.
195 rubycmd="/usr/bin/${implementation}" 255 rubycmd="$(ruby_implementation_command ${implementation})"
196 else 256 else
197 # if another implementation already arrived, then make 257 # if another implementation already arrived, then make
198 # it generic and break out of the loop. This ensures 258 # it generic and break out of the loop. This ensures
199 # that we do at most two iterations. 259 # that we do at most two iterations.
200 rubycmd="/usr/bin/env ruby" 260 rubycmd="/usr/bin/env ruby"
204 264
205 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF 265 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF
206#!${rubycmd} 266#!${rubycmd}
207# This is a simplified version of the RubyGems wrapper 267# This is a simplified version of the RubyGems wrapper
208# 268#
209# Generated by ruby-fakegem.eclass $Revision: 1.22 $ 269# Generated by ruby-fakegem.eclass $Revision: 1.32 $
210 270
211require 'rubygems' 271require 'rubygems'
212 272
213load Gem::default_path[-1] + "/gems/${relativegembinary}" 273load Gem::default_path[-1] + "/gems/${relativegembinary}"
214 274
237 # extracted twice and the mtime from the archive _has_ to be 297 # extracted twice and the mtime from the archive _has_ to be
238 # ignored (it's always set to epoch 0). 298 # ignored (it's always set to epoch 0).
239 for archive in ${A}; do 299 for archive in ${A}; do
240 case "${archive}" in 300 case "${archive}" in
241 *.gem) 301 *.gem)
242 # Make sure that we're not running unoack for more than 302 # Make sure that we're not running unpack for more than
243 # one .gem file, since we won't support that at all. 303 # one .gem file, since we won't support that at all.
244 [[ -d "${S}" ]] && die "Unable to unpack ${archive}, ${S} exists" 304 [[ -d "${S}" ]] && die "Unable to unpack ${archive}, ${S} exists"
245 305
246 ebegin "Unpacking .gem file..." 306 ebegin "Unpacking .gem file..."
247 tar -mxf ${DISTDIR}/${archive} || die 307 tar -mxf ${DISTDIR}/${archive} || die
248 eend $? 308 eend $?
249 309
310 ebegin "Uncompressing metadata"
311 gunzip metadata.gz || die
312 eend $?
313
250 mkdir "${S}" 314 mkdir "${S}"
251 pushd "${S}" &>/dev/null 315 pushd "${S}" &>/dev/null
252 316
253 ebegin "Unpacking data.tar.gz" 317 ebegin "Unpacking data.tar.gz"
254 tar -mxf "${my_WORKDIR}"/data.tar.gz || die 318 tar -mxf "${my_WORKDIR}"/data.tar.gz || die
255 eend $? 319 eend $?
320
256 popd &>/dev/null 321 popd &>/dev/null
257 ;; 322 ;;
258 *.patch.bz2) 323 *.patch.bz2)
259 # We apply the patches with RUBY_PATCHES directly from DISTDIR, 324 # We apply the patches with RUBY_PATCHES directly from DISTDIR,
260 # as the WORKDIR variable changes value between the global-scope 325 # as the WORKDIR variable changes value between the global-scope
296 361
297# @FUNCTION: each_fakegem_install 362# @FUNCTION: each_fakegem_install
298# @DESCRIPTION: 363# @DESCRIPTION:
299# Install the package for each ruby target. 364# Install the package for each ruby target.
300each_fakegem_install() { 365each_fakegem_install() {
301 ruby_fakegem_genspec 366 ruby_fakegem_install_gemspec
302 367
303 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}" 368 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}"
304 for directory in bin lib; do 369 for directory in bin lib; do
305 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}" 370 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}"
306 done 371 done

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