/[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 1.12 2010/01/21 10:18:59 flameeyes Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ruby-fakegem.eclass,v 1.31 2011/10/21 06:32:29 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:
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=""
61 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
62RUBY_FAKEGEM_NAME="${RUBY_FAKEGEM_NAME:-${PN}}" 64RUBY_FAKEGEM_NAME="${RUBY_FAKEGEM_NAME:-${PN}}"
63RUBY_FAKEGEM_VERSION="${RUBY_FAKEGEM_VERSION:-${PV}}" 65RUBY_FAKEGEM_VERSION="${RUBY_FAKEGEM_VERSION:-${PV/_pre/.pre}}"
66RUBY_FAKEGEM_SUFFIX="${RUBY_FAKEGEM_SUFFIX:-}"
64 67
65RUBY_FAKEGEM_TASK_DOC="${RUBY_FAKEGEM_TASK_DOC-rdoc}" 68RUBY_FAKEGEM_TASK_DOC="${RUBY_FAKEGEM_TASK_DOC-rdoc}"
66RUBY_FAKEGEM_TASK_TEST="${RUBY_FAKEGEM_TASK_TEST-test}" 69RUBY_FAKEGEM_TASK_TEST="${RUBY_FAKEGEM_TASK_TEST-test}"
67 70
68RUBY_FAKEGEM_BINWRAP="${RUBY_FAKEGEM_BINWRAP-*}" 71RUBY_FAKEGEM_BINWRAP="${RUBY_FAKEGEM_BINWRAP-*}"
69 72
70if [[ ${RUBY_FAKEGEM_TASK_DOC} != "" ]]; then 73if [[ ${RUBY_FAKEGEM_TASK_DOC} != "" ]]; then
71 IUSE="$IUSE doc" 74 IUSE="$IUSE doc"
72 ruby_add_bdepend doc "dev-ruby/rake" 75 ruby_add_bdepend "doc? ( dev-ruby/rake )"
76fi
77
78if [[ -n ${RUBY_FAKEGEM_DOCDIR} ]]; then
79 IUSE="$IUSE doc"
73fi 80fi
74 81
75if [[ ${RUBY_FAKEGEM_TASK_TEST} != "" ]]; then 82if [[ ${RUBY_FAKEGEM_TASK_TEST} != "" ]]; then
76 IUSE="$IUSE test" 83 IUSE="$IUSE test"
77 ruby_add_bdepend test "dev-ruby/rake" 84 ruby_add_bdepend "test? ( dev-ruby/rake )"
78fi 85fi
79 86
80SRC_URI="mirror://rubygems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gem" 87SRC_URI="mirror://rubygems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}${RUBY_FAKEGEM_SUFFIX:+-${RUBY_FAKEGEM_SUFFIX}}.gem"
81 88
89ruby_add_bdepend virtual/rubygems
82ruby_add_rdepend virtual/rubygems 90ruby_add_rdepend virtual/rubygems
83 91
84# @FUNCTION: ruby_fakegem_gemsdir 92# @FUNCTION: ruby_fakegem_gemsdir
85# @RETURN: Returns the gem data directory 93# @RETURN: Returns the gem data directory
86# @DESCRIPTION: 94# @DESCRIPTION:
87# This function returns the gems data directory for the ruby 95# This function returns the gems data directory for the ruby
88# implementation in question. 96# implementation in question.
89ruby_fakegem_gemsdir() { 97ruby_fakegem_gemsdir() {
90 local _gemsitedir=$(${RUBY} -r rbconfig -e 'print Config::CONFIG["sitelibdir"]' | sed -e 's:site_ruby:gems:') 98 has "${EAPI}" 2 && ! use prefix && EPREFIX=
99
100 local _gemsitedir=$(ruby_rbconfig_value 'sitelibdir')
101 _gemsitedir=${_gemsitedir//site_ruby/gems}
102 _gemsitedir=${_gemsitedir#${EPREFIX}}
91 103
92 [[ -z ${_gemsitedir} ]] && { 104 [[ -z ${_gemsitedir} ]] && {
93 eerror "Unable to find the gems dir" 105 eerror "Unable to find the gems dir"
94 die "Unable to find the gems dir" 106 die "Unable to find the gems dir"
95 } 107 }
124 insinto $(ruby_fakegem_gemsdir)/gems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}${newdirname} 136 insinto $(ruby_fakegem_gemsdir)/gems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}${newdirname}
125 newins "$1" ${newbasename} 137 newins "$1" ${newbasename}
126 ) || die "failed $0 $@" 138 ) || die "failed $0 $@"
127} 139}
128 140
141# @FUNCTION: ruby_fakegem_install_gemspec
142# @DESCRIPTION:
143# Install a .gemspec file for this package. Either use the file indicated
144# by the RUBY_FAKEGEM_GEMSPEC variable, or generate one using
145# ruby_fakegem_genspec.
146ruby_fakegem_install_gemspec() {
147 local gemspec="${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation}
148
149 (
150 if [[ ${RUBY_FAKEGEM_GEMSPEC} != "" ]]; then
151 ruby_fakegem_gemspec_gemspec ${RUBY_FAKEGEM_GEMSPEC} ${gemspec}
152 else
153 local metadata="${WORKDIR}"/${_ruby_implementation}/metadata
154
155 if [[ -e ${metadata} ]]; then
156 ruby_fakegem_metadata_gemspec ${metadata} ${gemspec}
157 else
158 ruby_fakegem_genspec ${gemspec}
159 fi
160 fi
161 ) || die "Unable to generate gemspec file."
162
163 insinto $(ruby_fakegem_gemsdir)/specifications
164 newins ${gemspec} ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec || die "Unable to install gemspec file."
165}
166
167# @FUNCTION: ruby_fakegem_gemspec_gemspec
168# @USAGE: gemspec-input gemspec-output
169# @DESCRIPTION:
170# Generates an installable version of the specification indicated by
171# RUBY_FAKEGEM_GEMSPEC. This file is eval'ed to produce a final specification
172# in a way similar to packaging the gemspec file.
173ruby_fakegem_gemspec_gemspec() {
174 ${RUBY} -e "puts eval(File::open('$1').read).to_ruby" > $2
175}
176
177# @FUNCTION: ruby_fakegem_metadata_gemspec
178# @USAGE: gemspec-metadata gemspec-output
179# @DESCRIPTION:
180# Generates an installable version of the specification indicated by
181# the metadata distributed by the gem itself. This is similar to how
182# rubygems creates an installation from a .gem file.
183ruby_fakegem_metadata_gemspec() {
184 ${RUBY} -r yaml -e "puts Gem::Specification.from_yaml(File::open('$1').read).to_ruby" > $2
185}
186
129# @FUNCTION: ruby_fakegem_genspec 187# @FUNCTION: ruby_fakegem_genspec
188# @USAGE: output-gemspec
130# @DESCRIPTION: 189# @DESCRIPTION:
131# Generates a gemspec for the package and places it into the "specifications" 190# Generates a gemspec for the package and places it into the "specifications"
132# directory of RubyGems. 191# directory of RubyGems.
192# If the metadata normally distributed with a gem is present then that is
193# used to generate the gemspec file.
194#
195# As a fallback we can generate our own version.
133# In the gemspec, the following values are set: name, version, summary, 196# In the gemspec, the following values are set: name, version, summary,
134# homepage, and require_paths=["lib"]. 197# homepage, and require_paths=["lib"].
135# See RUBY_FAKEGEM_NAME and RUBY_FAKEGEM_VERSION for setting name and version. 198# See RUBY_FAKEGEM_NAME and RUBY_FAKEGEM_VERSION for setting name and version.
136# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths. 199# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths.
137ruby_fakegem_genspec() { 200ruby_fakegem_genspec() {
138 (
139 local required_paths="'lib'" 201 local required_paths="'lib'"
140 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do 202 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do
141 required_paths="${required_paths}, '${path}'" 203 required_paths="${required_paths}, '${path}'"
142 done 204 done
143 205
144 # We use the _ruby_implementation variable to avoid having stray 206 # We use the _ruby_implementation variable to avoid having stray
145 # copies with different implementations; while for now we're using 207 # copies with different implementations; while for now we're using
146 # the same exact content, we might have differences in the future, 208 # the same exact content, we might have differences in the future,
147 # so better taking this into consideration. 209 # so better taking this into consideration.
148 cat - > "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} <<EOF 210 local quoted_description=${DESCRIPTION//\"/\\\"}
211 cat - > $1 <<EOF
212# generated by ruby-fakegem.eclass $Revision: 1.31 $
149Gem::Specification.new do |s| 213Gem::Specification.new do |s|
150 s.name = "${RUBY_FAKEGEM_NAME}" 214 s.name = "${RUBY_FAKEGEM_NAME}"
151 s.version = "${RUBY_FAKEGEM_VERSION}" 215 s.version = "${RUBY_FAKEGEM_VERSION}"
152 s.summary = "${DESCRIPTION}" 216 s.summary = "${quoted_description}"
153 s.homepage = "${HOMEPAGE}" 217 s.homepage = "${HOMEPAGE}"
154 s.require_paths = [${required_paths}] 218 s.require_paths = [${required_paths}]
155end 219end
156EOF 220EOF
157
158 insinto $(ruby_fakegem_gemsdir)/specifications
159 newins "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec
160 ) || die "Unable to install fake gemspec"
161} 221}
162 222
163# @FUNCTION: ruby_fakegem_binwrapper 223# @FUNCTION: ruby_fakegem_binwrapper
164# @USAGE: command [path] 224# @USAGE: command [path]
165# @DESCRIPTION: 225# @DESCRIPTION:
171 local newbinary=${2:-/usr/bin/$gembinary} 231 local newbinary=${2:-/usr/bin/$gembinary}
172 local relativegembinary=${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}/bin/${gembinary} 232 local relativegembinary=${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}/bin/${gembinary}
173 local binpath=$(dirname $newbinary) 233 local binpath=$(dirname $newbinary)
174 [[ ${binpath} = . ]] && binpath=/usr/bin 234 [[ ${binpath} = . ]] && binpath=/usr/bin
175 235
236 # Try to find out whether the package is going to install for
237 # one or multiple implementations; if we're installing for a
238 # *single* implementation, no need to use “/usr/bin/env ruby”
239 # in the shebang, and we can actually avoid errors when
240 # calling the script by default (see for instance the
241 # JRuby-specific commands).
242 local rubycmd=
243 for implementation in ${USE_RUBY}; do
244 # ignore non-enabled implementations
245 use ruby_targets_${implementation} || continue
246 if [ -z $rubycmd ]; then
247 # if no other implementation was set before, set it.
248 rubycmd="$(ruby_implementation_command ${implementation})"
249 else
250 # if another implementation already arrived, then make
251 # it generic and break out of the loop. This ensures
252 # that we do at most two iterations.
253 rubycmd="/usr/bin/env ruby"
254 break
255 fi
256 done
257
176 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF 258 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF
177#!/usr/bin/env ruby 259#!${rubycmd}
178# This is a simplified version of the RubyGems wrapper 260# This is a simplified version of the RubyGems wrapper
179# 261#
180# Generated by ruby-fakegem.eclass 262# Generated by ruby-fakegem.eclass $Revision: 1.31 $
181 263
182require 'rubygems' 264require 'rubygems'
183 265
184load Gem::default_path[-1] + "/gems/${relativegembinary}" 266load Gem::default_path[-1] + "/gems/${relativegembinary}"
185 267
205# Unpack the source archive, including support for unpacking gems. 287# Unpack the source archive, including support for unpacking gems.
206all_ruby_unpack() { 288all_ruby_unpack() {
207 # Special support for extracting .gem files; the file need to be 289 # Special support for extracting .gem files; the file need to be
208 # extracted twice and the mtime from the archive _has_ to be 290 # extracted twice and the mtime from the archive _has_ to be
209 # ignored (it's always set to epoch 0). 291 # ignored (it's always set to epoch 0).
210 # 292 for archive in ${A}; do
211 # This only works if there is exactly one archive and that archive 293 case "${archive}" in
212 # is a .gem file! 294 *.gem)
213 if [[ $(wc -w <<< ${A}) == 1 ]] && 295 # Make sure that we're not running unpack for more than
214 [[ ${A} == *.gem ]]; then 296 # one .gem file, since we won't support that at all.
297 [[ -d "${S}" ]] && die "Unable to unpack ${archive}, ${S} exists"
298
215 ebegin "Unpacking .gem file..." 299 ebegin "Unpacking .gem file..."
216 tar -mxf ${DISTDIR}/${A} || die 300 tar -mxf ${DISTDIR}/${archive} || die
217 eend $? 301 eend $?
218 302
303 ebegin "Uncompressing metadata"
304 gunzip metadata.gz || die
305 eend $?
306
219 mkdir "${S}" 307 mkdir "${S}"
220 pushd "${S}" &>/dev/null 308 pushd "${S}" &>/dev/null
221 309
222 ebegin "Unpacking data.tar.gz" 310 ebegin "Unpacking data.tar.gz"
223 tar -mxf "${my_WORKDIR}"/data.tar.gz || die 311 tar -mxf "${my_WORKDIR}"/data.tar.gz || die
224 eend $? 312 eend $?
313
225 popd &>/dev/null 314 popd &>/dev/null
226 else 315 ;;
227 [[ -n ${A} ]] && unpack ${A} 316 *.patch.bz2)
228 fi 317 # We apply the patches with RUBY_PATCHES directly from DISTDIR,
318 # as the WORKDIR variable changes value between the global-scope
319 # and the time all_ruby_unpack/_prepare are called. Since we can
320 # simply decompress them when applying, this is much easier to
321 # deal with for us.
322 einfo "Keeping ${archive} as-is"
323 ;;
324 *)
325 unpack ${archive}
326 ;;
327 esac
328 done
229} 329}
230 330
231# @FUNCTION: all_ruby_compile 331# @FUNCTION: all_ruby_compile
232# @DESCRIPTION: 332# @DESCRIPTION:
233# Compile the package. 333# Compile the package.
238# @FUNCTION: each_fakegem_test 338# @FUNCTION: each_fakegem_test
239# @DESCRIPTION: 339# @DESCRIPTION:
240# Run tests for the package for each ruby target if the test task is defined. 340# Run tests for the package for each ruby target if the test task is defined.
241each_fakegem_test() { 341each_fakegem_test() {
242 local rubyflags= 342 local rubyflags=
243
244 if [[ ${RUBY_FAKEGEM_TASK_TEST} != "" ]]; then
245 ${RUBY} ${rubyflags} -S rake ${RUBY_FAKEGEM_TASK_TEST} || die "tests failed" 343 ${RUBY} ${rubyflags} -S rake ${RUBY_FAKEGEM_TASK_TEST} || die "tests failed"
246 else
247 echo "No test task defined, skipping tests."
248 fi
249} 344}
250 345
346if [[ ${RUBY_FAKEGEM_TASK_TEST} != "" ]]; then
251# @FUNCTION: each_ruby_test 347 # @FUNCTION: each_ruby_test
252# @DESCRIPTION: 348 # @DESCRIPTION:
253# Run the tests for this package. 349 # Run the tests for this package.
254each_ruby_test() { 350 each_ruby_test() {
255 each_fakegem_test 351 each_fakegem_test
256} 352 }
353fi
257 354
258# @FUNCTION: each_fakegem_install 355# @FUNCTION: each_fakegem_install
259# @DESCRIPTION: 356# @DESCRIPTION:
260# Install the package for each ruby target. 357# Install the package for each ruby target.
261each_fakegem_install() { 358each_fakegem_install() {
262 ruby_fakegem_genspec 359 ruby_fakegem_install_gemspec
263 360
264 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}" 361 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}"
265 for directory in bin lib; do 362 for directory in bin lib; do
266 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}" 363 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}"
267 done 364 done
279 376
280# @FUNCTION: all_fakegem_install 377# @FUNCTION: all_fakegem_install
281# @DESCRIPTION: 378# @DESCRIPTION:
282# Install files common to all ruby targets. 379# Install files common to all ruby targets.
283all_fakegem_install() { 380all_fakegem_install() {
284 if [[ -n ${RUBY_FAKEGEM_DOCDIR} ]] && [[ ${RUBY_FAKEGEM_TASK_DOC} != "" ]] && use doc; then 381 if [[ -n ${RUBY_FAKEGEM_DOCDIR} ]] && use doc; then
285 for dir in ${RUBY_FAKEGEM_DOCDIR}; do 382 for dir in ${RUBY_FAKEGEM_DOCDIR}; do
383 [[ -d ${dir} ]] || continue
384
286 pushd ${dir} &>/dev/null 385 pushd ${dir} &>/dev/null
287 dohtml -r * || die "failed to install documentation" 386 dohtml -r * || die "failed to install documentation"
288 popd &>/dev/null 387 popd &>/dev/null
289 done 388 done
290 fi 389 fi

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