/[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 1.25 2010/12/18 09:50:08 graaff 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:
61 58
62# @ECLASS-VARIABLE: RUBY_FAKEGEM_GEMSPEC 59# @ECLASS-VARIABLE: RUBY_FAKEGEM_GEMSPEC
63# @DESCRIPTION: 60# @DESCRIPTION:
64# Filename of .gemspec file to install instead of generating a generic one. 61# Filename of .gemspec file to install instead of generating a generic one.
65# RUBY_FAKEGEM_GEMSPEC="" 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=""
66 70
67RUBY_FAKEGEM_NAME="${RUBY_FAKEGEM_NAME:-${PN}}" 71RUBY_FAKEGEM_NAME="${RUBY_FAKEGEM_NAME:-${PN}}"
68RUBY_FAKEGEM_VERSION="${RUBY_FAKEGEM_VERSION:-${PV/_pre/.pre}}" 72RUBY_FAKEGEM_VERSION="${RUBY_FAKEGEM_VERSION:-${PV/_pre/.pre}}"
69RUBY_FAKEGEM_SUFFIX="${RUBY_FAKEGEM_SUFFIX:-}" 73RUBY_FAKEGEM_SUFFIX="${RUBY_FAKEGEM_SUFFIX:-}"
70 74
87 ruby_add_bdepend "test? ( dev-ruby/rake )" 91 ruby_add_bdepend "test? ( dev-ruby/rake )"
88fi 92fi
89 93
90SRC_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"
91 95
96ruby_add_bdepend virtual/rubygems
92ruby_add_rdepend dev-ruby/rubygems 97ruby_add_rdepend virtual/rubygems
93 98
94# @FUNCTION: ruby_fakegem_gemsdir 99# @FUNCTION: ruby_fakegem_gemsdir
95# @RETURN: Returns the gem data directory 100# @RETURN: Returns the gem data directory
96# @DESCRIPTION: 101# @DESCRIPTION:
97# This function returns the gems data directory for the ruby 102# This function returns the gems data directory for the ruby
138 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}
139 newins "$1" ${newbasename} 144 newins "$1" ${newbasename}
140 ) || die "failed $0 $@" 145 ) || die "failed $0 $@"
141} 146}
142 147
143# @FUNCTION: ruby_fakegem_gemspec 148# @FUNCTION: ruby_fakegem_install_gemspec
144# @DESCRIPTION: 149# @DESCRIPTION:
145# Install a .gemspec file for this package. Either use the file indicated 150# Install a .gemspec file for this package. Either use the file indicated
146# by the RUBY_FAKEGEM_GEMSPEC variable, or generate one using 151# by the RUBY_FAKEGEM_GEMSPEC variable, or generate one using
147# ruby_fakegem_genspec 152# ruby_fakegem_genspec.
148ruby_fakegem_gemspec() { 153ruby_fakegem_install_gemspec() {
154 local gemspec="${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation}
155
156 (
149 if [[ ${RUBY_FAKEGEM_GEMSPEC} != "" ]]; then 157 if [[ ${RUBY_FAKEGEM_GEMSPEC} != "" ]]; then
150 ( 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
151 insinto $(ruby_fakegem_gemsdir)/specifications 170 insinto $(ruby_fakegem_gemsdir)/specifications
152 newins "${RUBY_FAKEGEM_GEMSPEC}" ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec 171 newins ${gemspec} ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec || die "Unable to install gemspec file."
153 ) || die "Unable to install ${RUBY_FAKEGEM_GEMSPEC} gemspec" 172}
154 else 173
155 ruby_fakegem_genspec 174# @FUNCTION: ruby_fakegem_gemspec_gemspec
156 fi 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
157} 192}
158 193
159# @FUNCTION: ruby_fakegem_genspec 194# @FUNCTION: ruby_fakegem_genspec
195# @USAGE: output-gemspec
160# @DESCRIPTION: 196# @DESCRIPTION:
161# 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"
162# 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.
163# In the gemspec, the following values are set: name, version, summary, 203# In the gemspec, the following values are set: name, version, summary,
164# homepage, and require_paths=["lib"]. 204# homepage, and require_paths=["lib"].
165# 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.
166# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths. 206# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths.
167ruby_fakegem_genspec() { 207ruby_fakegem_genspec() {
168 (
169 local required_paths="'lib'" 208 local required_paths="'lib'"
170 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do 209 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do
171 required_paths="${required_paths}, '${path}'" 210 required_paths="${required_paths}, '${path}'"
172 done 211 done
173 212
174 # We use the _ruby_implementation variable to avoid having stray 213 # We use the _ruby_implementation variable to avoid having stray
175 # copies with different implementations; while for now we're using 214 # copies with different implementations; while for now we're using
176 # the same exact content, we might have differences in the future, 215 # the same exact content, we might have differences in the future,
177 # so better taking this into consideration. 216 # so better taking this into consideration.
178 local quoted_description=${DESCRIPTION//\"/\\\"} 217 local quoted_description=${DESCRIPTION//\"/\\\"}
179 cat - > "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} <<EOF 218 cat - > $1 <<EOF
180# generated by ruby-fakegem.eclass $Revision: 1.25 $ 219# generated by ruby-fakegem.eclass $Revision: 1.32 $
181Gem::Specification.new do |s| 220Gem::Specification.new do |s|
182 s.name = "${RUBY_FAKEGEM_NAME}" 221 s.name = "${RUBY_FAKEGEM_NAME}"
183 s.version = "${RUBY_FAKEGEM_VERSION}" 222 s.version = "${RUBY_FAKEGEM_VERSION}"
184 s.summary = "${quoted_description}" 223 s.summary = "${quoted_description}"
185 s.homepage = "${HOMEPAGE}" 224 s.homepage = "${HOMEPAGE}"
186 s.require_paths = [${required_paths}] 225 s.require_paths = [${required_paths}]
187end 226end
188EOF 227EOF
189
190 insinto $(ruby_fakegem_gemsdir)/specifications
191 newins "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec
192 ) || die "Unable to install fake gemspec"
193} 228}
194 229
195# @FUNCTION: ruby_fakegem_binwrapper 230# @FUNCTION: ruby_fakegem_binwrapper
196# @USAGE: command [path] 231# @USAGE: command [path]
197# @DESCRIPTION: 232# @DESCRIPTION:
229 264
230 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF 265 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF
231#!${rubycmd} 266#!${rubycmd}
232# This is a simplified version of the RubyGems wrapper 267# This is a simplified version of the RubyGems wrapper
233# 268#
234# Generated by ruby-fakegem.eclass $Revision: 1.25 $ 269# Generated by ruby-fakegem.eclass $Revision: 1.32 $
235 270
236require 'rubygems' 271require 'rubygems'
237 272
238load Gem::default_path[-1] + "/gems/${relativegembinary}" 273load Gem::default_path[-1] + "/gems/${relativegembinary}"
239 274
262 # extracted twice and the mtime from the archive _has_ to be 297 # extracted twice and the mtime from the archive _has_ to be
263 # ignored (it's always set to epoch 0). 298 # ignored (it's always set to epoch 0).
264 for archive in ${A}; do 299 for archive in ${A}; do
265 case "${archive}" in 300 case "${archive}" in
266 *.gem) 301 *.gem)
267 # Make sure that we're not running unoack for more than 302 # Make sure that we're not running unpack for more than
268 # one .gem file, since we won't support that at all. 303 # one .gem file, since we won't support that at all.
269 [[ -d "${S}" ]] && die "Unable to unpack ${archive}, ${S} exists" 304 [[ -d "${S}" ]] && die "Unable to unpack ${archive}, ${S} exists"
270 305
271 ebegin "Unpacking .gem file..." 306 ebegin "Unpacking .gem file..."
272 tar -mxf ${DISTDIR}/${archive} || die 307 tar -mxf ${DISTDIR}/${archive} || die
273 eend $? 308 eend $?
274 309
310 ebegin "Uncompressing metadata"
311 gunzip metadata.gz || die
312 eend $?
313
275 mkdir "${S}" 314 mkdir "${S}"
276 pushd "${S}" &>/dev/null 315 pushd "${S}" &>/dev/null
277 316
278 ebegin "Unpacking data.tar.gz" 317 ebegin "Unpacking data.tar.gz"
279 tar -mxf "${my_WORKDIR}"/data.tar.gz || die 318 tar -mxf "${my_WORKDIR}"/data.tar.gz || die
280 eend $? 319 eend $?
320
281 popd &>/dev/null 321 popd &>/dev/null
282 ;; 322 ;;
283 *.patch.bz2) 323 *.patch.bz2)
284 # We apply the patches with RUBY_PATCHES directly from DISTDIR, 324 # We apply the patches with RUBY_PATCHES directly from DISTDIR,
285 # as the WORKDIR variable changes value between the global-scope 325 # as the WORKDIR variable changes value between the global-scope
321 361
322# @FUNCTION: each_fakegem_install 362# @FUNCTION: each_fakegem_install
323# @DESCRIPTION: 363# @DESCRIPTION:
324# Install the package for each ruby target. 364# Install the package for each ruby target.
325each_fakegem_install() { 365each_fakegem_install() {
326 ruby_fakegem_gemspec 366 ruby_fakegem_install_gemspec
327 367
328 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}" 368 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}"
329 for directory in bin lib; do 369 for directory in bin lib; do
330 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}" 370 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}"
331 done 371 done

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