/[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 1.26 2010/12/18 09:57:24 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:
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 dev-ruby/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
133 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}
134 newins "$1" ${newbasename} 144 newins "$1" ${newbasename}
135 ) || die "failed $0 $@" 145 ) || die "failed $0 $@"
136} 146}
137 147
148# @FUNCTION: ruby_fakegem_install_gemspec
149# @DESCRIPTION:
150# Install a .gemspec file for this package. Either use the file indicated
151# by the RUBY_FAKEGEM_GEMSPEC variable, or generate one using
152# ruby_fakegem_genspec.
153ruby_fakegem_install_gemspec() {
154 local gemspec="${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
138# @FUNCTION: ruby_fakegem_genspec 194# @FUNCTION: ruby_fakegem_genspec
195# @USAGE: output-gemspec
139# @DESCRIPTION: 196# @DESCRIPTION:
140# 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"
141# 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.
142# In the gemspec, the following values are set: name, version, summary, 203# In the gemspec, the following values are set: name, version, summary,
143# homepage, and require_paths=["lib"]. 204# homepage, and require_paths=["lib"].
144# 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.
145# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths. 206# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths.
146ruby_fakegem_genspec() { 207ruby_fakegem_genspec() {
147 (
148 local required_paths="'lib'" 208 local required_paths="'lib'"
149 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do 209 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do
150 required_paths="${required_paths}, '${path}'" 210 required_paths="${required_paths}, '${path}'"
151 done 211 done
152 212
153 # We use the _ruby_implementation variable to avoid having stray 213 # We use the _ruby_implementation variable to avoid having stray
154 # copies with different implementations; while for now we're using 214 # copies with different implementations; while for now we're using
155 # the same exact content, we might have differences in the future, 215 # the same exact content, we might have differences in the future,
156 # so better taking this into consideration. 216 # so better taking this into consideration.
157 local quoted_description=${DESCRIPTION//\"/\\\"} 217 local quoted_description=${DESCRIPTION//\"/\\\"}
158 cat - > "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} <<EOF 218 cat - > $1 <<EOF
159# generated by ruby-fakegem.eclass $Revision: 1.26 $ 219# generated by ruby-fakegem.eclass $Revision: 1.32 $
160Gem::Specification.new do |s| 220Gem::Specification.new do |s|
161 s.name = "${RUBY_FAKEGEM_NAME}" 221 s.name = "${RUBY_FAKEGEM_NAME}"
162 s.version = "${RUBY_FAKEGEM_VERSION}" 222 s.version = "${RUBY_FAKEGEM_VERSION}"
163 s.summary = "${quoted_description}" 223 s.summary = "${quoted_description}"
164 s.homepage = "${HOMEPAGE}" 224 s.homepage = "${HOMEPAGE}"
165 s.require_paths = [${required_paths}] 225 s.require_paths = [${required_paths}]
166end 226end
167EOF 227EOF
168
169 insinto $(ruby_fakegem_gemsdir)/specifications
170 newins "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec
171 ) || die "Unable to install fake gemspec"
172} 228}
173 229
174# @FUNCTION: ruby_fakegem_binwrapper 230# @FUNCTION: ruby_fakegem_binwrapper
175# @USAGE: command [path] 231# @USAGE: command [path]
176# @DESCRIPTION: 232# @DESCRIPTION:
208 264
209 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF 265 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF
210#!${rubycmd} 266#!${rubycmd}
211# This is a simplified version of the RubyGems wrapper 267# This is a simplified version of the RubyGems wrapper
212# 268#
213# Generated by ruby-fakegem.eclass $Revision: 1.26 $ 269# Generated by ruby-fakegem.eclass $Revision: 1.32 $
214 270
215require 'rubygems' 271require 'rubygems'
216 272
217load Gem::default_path[-1] + "/gems/${relativegembinary}" 273load Gem::default_path[-1] + "/gems/${relativegembinary}"
218 274
241 # extracted twice and the mtime from the archive _has_ to be 297 # extracted twice and the mtime from the archive _has_ to be
242 # ignored (it's always set to epoch 0). 298 # ignored (it's always set to epoch 0).
243 for archive in ${A}; do 299 for archive in ${A}; do
244 case "${archive}" in 300 case "${archive}" in
245 *.gem) 301 *.gem)
246 # Make sure that we're not running unoack for more than 302 # Make sure that we're not running unpack for more than
247 # one .gem file, since we won't support that at all. 303 # one .gem file, since we won't support that at all.
248 [[ -d "${S}" ]] && die "Unable to unpack ${archive}, ${S} exists" 304 [[ -d "${S}" ]] && die "Unable to unpack ${archive}, ${S} exists"
249 305
250 ebegin "Unpacking .gem file..." 306 ebegin "Unpacking .gem file..."
251 tar -mxf ${DISTDIR}/${archive} || die 307 tar -mxf ${DISTDIR}/${archive} || die
252 eend $? 308 eend $?
253 309
310 ebegin "Uncompressing metadata"
311 gunzip metadata.gz || die
312 eend $?
313
254 mkdir "${S}" 314 mkdir "${S}"
255 pushd "${S}" &>/dev/null 315 pushd "${S}" &>/dev/null
256 316
257 ebegin "Unpacking data.tar.gz" 317 ebegin "Unpacking data.tar.gz"
258 tar -mxf "${my_WORKDIR}"/data.tar.gz || die 318 tar -mxf "${my_WORKDIR}"/data.tar.gz || die
259 eend $? 319 eend $?
320
260 popd &>/dev/null 321 popd &>/dev/null
261 ;; 322 ;;
262 *.patch.bz2) 323 *.patch.bz2)
263 # We apply the patches with RUBY_PATCHES directly from DISTDIR, 324 # We apply the patches with RUBY_PATCHES directly from DISTDIR,
264 # as the WORKDIR variable changes value between the global-scope 325 # as the WORKDIR variable changes value between the global-scope
300 361
301# @FUNCTION: each_fakegem_install 362# @FUNCTION: each_fakegem_install
302# @DESCRIPTION: 363# @DESCRIPTION:
303# Install the package for each ruby target. 364# Install the package for each ruby target.
304each_fakegem_install() { 365each_fakegem_install() {
305 ruby_fakegem_genspec 366 ruby_fakegem_install_gemspec
306 367
307 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}" 368 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}"
308 for directory in bin lib; do 369 for directory in bin lib; do
309 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}" 370 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}"
310 done 371 done

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