/[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 1.4 2009/12/15 17:43:51 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:
47# @ECLASS-VARIABLE: RUBY_FAKEGEM_EXTRADOC 44# @ECLASS-VARIABLE: RUBY_FAKEGEM_EXTRADOC
48# @DESCRIPTION: 45# @DESCRIPTION:
49# Extra documentation to install (readme, changelogs, …). 46# Extra documentation to install (readme, changelogs, …).
50# RUBY_FAKEGEM_EXTRADOC="" 47# RUBY_FAKEGEM_EXTRADOC=""
51 48
49# @ECLASS-VARIABLE: RUBY_FAKEGEM_BINWRAP
50# @DESCRIPTION:
51# Binaries to wrap around (relative to the bin/ directory)
52# RUBY_FAKEGEM_BINWRAP="*"
53
54# @ECLASS-VARIABLE: RUBY_FAKEGEM_REQUIRE_PATHS
55# @DESCRIPTION:
56# Extra require paths (beside lib) to add to the specification
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=""
70
52RUBY_FAKEGEM_NAME="${RUBY_FAKEGEM_NAME:-${PN}}" 71RUBY_FAKEGEM_NAME="${RUBY_FAKEGEM_NAME:-${PN}}"
53RUBY_FAKEGEM_VERSION="${RUBY_FAKEGEM_VERSION:-${PV}}" 72RUBY_FAKEGEM_VERSION="${RUBY_FAKEGEM_VERSION:-${PV/_pre/.pre}}"
73RUBY_FAKEGEM_SUFFIX="${RUBY_FAKEGEM_SUFFIX:-}"
54 74
55RUBY_FAKEGEM_TASK_DOC="${RUBY_FAKEGEM_TASK_DOC-rdoc}" 75RUBY_FAKEGEM_TASK_DOC="${RUBY_FAKEGEM_TASK_DOC-rdoc}"
56RUBY_FAKEGEM_TASK_TEST="${RUBY_FAKEGEM_TASK_TEST-test}" 76RUBY_FAKEGEM_TASK_TEST="${RUBY_FAKEGEM_TASK_TEST-test}"
57 77
78RUBY_FAKEGEM_BINWRAP="${RUBY_FAKEGEM_BINWRAP-*}"
79
58if [[ ${RUBY_FAKEGEM_TASK_DOC} != "" ]]; then 80if [[ ${RUBY_FAKEGEM_TASK_DOC} != "" ]]; then
59 IUSE="$IUSE doc" 81 IUSE="$IUSE doc"
60 ruby_add_bdepend doc "dev-ruby/rake" 82 ruby_add_bdepend "doc? ( dev-ruby/rake )"
83fi
84
85if [[ -n ${RUBY_FAKEGEM_DOCDIR} ]]; then
86 IUSE="$IUSE doc"
61fi 87fi
62 88
63if [[ ${RUBY_FAKEGEM_TASK_TEST} != "" ]]; then 89if [[ ${RUBY_FAKEGEM_TASK_TEST} != "" ]]; then
64 IUSE="$IUSE test" 90 IUSE="$IUSE test"
65 ruby_add_bdepend test "dev-ruby/rake" 91 ruby_add_bdepend "test? ( dev-ruby/rake )"
66fi 92fi
67 93
68SRC_URI="mirror://rubygems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gem" 94SRC_URI="mirror://rubygems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}${RUBY_FAKEGEM_SUFFIX:+-${RUBY_FAKEGEM_SUFFIX}}.gem"
69 95
96ruby_add_bdepend virtual/rubygems
70ruby_add_rdepend virtual/rubygems 97ruby_add_rdepend virtual/rubygems
71 98
72# @FUNCTION: ruby_fakegem_gemsdir 99# @FUNCTION: ruby_fakegem_gemsdir
73# @RETURN: Returns the gem data directory 100# @RETURN: Returns the gem data directory
74# @DESCRIPTION: 101# @DESCRIPTION:
75# This function returns the gems data directory for the ruby 102# This function returns the gems data directory for the ruby
76# implementation in question. 103# implementation in question.
77ruby_fakegem_gemsdir() { 104ruby_fakegem_gemsdir() {
78 local _gemsitedir=$(${RUBY} -r rbconfig -e 'print Config::CONFIG["sitelibdir"]' | sed -e 's:site_ruby:gems:') 105 has "${EAPI}" 2 && ! use prefix && EPREFIX=
106
107 local _gemsitedir=$(ruby_rbconfig_value 'sitelibdir')
108 _gemsitedir=${_gemsitedir//site_ruby/gems}
109 _gemsitedir=${_gemsitedir#${EPREFIX}}
79 110
80 [[ -z ${_gemsitedir} ]] && { 111 [[ -z ${_gemsitedir} ]] && {
81 eerror "Unable to find the gems dir" 112 eerror "Unable to find the gems dir"
82 die "Unable to find the gems dir" 113 die "Unable to find the gems dir"
83 } 114 }
112 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}
113 newins "$1" ${newbasename} 144 newins "$1" ${newbasename}
114 ) || die "failed $0 $@" 145 ) || die "failed $0 $@"
115} 146}
116 147
148# @FUNCTION: ruby_fakegem_install_gemspec
149# @DESCRIPTION:
150# Install a .gemspec file for this package. Either use the file indicated
151# by the RUBY_FAKEGEM_GEMSPEC variable, or generate one using
152# ruby_fakegem_genspec.
153ruby_fakegem_install_gemspec() {
154 local gemspec="${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
117# @FUNCTION: ruby_fakegem_genspec 194# @FUNCTION: ruby_fakegem_genspec
195# @USAGE: output-gemspec
118# @DESCRIPTION: 196# @DESCRIPTION:
119# 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"
120# 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.
121# In the gemspec, the following values are set: name, version, summary, 203# In the gemspec, the following values are set: name, version, summary,
122# homepage, and require_paths=["lib"]. 204# homepage, and require_paths=["lib"].
123# 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.
206# See RUBY_FAKEGEM_REQUIRE_PATHS for setting extra require paths.
124ruby_fakegem_genspec() { 207ruby_fakegem_genspec() {
125 ( 208 local required_paths="'lib'"
209 for path in ${RUBY_FAKEGEM_REQUIRE_PATHS}; do
210 required_paths="${required_paths}, '${path}'"
211 done
212
126 # We use the _ruby_implementation variable to avoid having stray 213 # We use the _ruby_implementation variable to avoid having stray
127 # copies with different implementations; while for now we're using 214 # copies with different implementations; while for now we're using
128 # the same exact content, we might have differences in the future, 215 # the same exact content, we might have differences in the future,
129 # so better taking this into consideration. 216 # so better taking this into consideration.
130 cat - > "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} <<EOF 217 local quoted_description=${DESCRIPTION//\"/\\\"}
218 cat - > $1 <<EOF
219# generated by ruby-fakegem.eclass $Revision: 1.32 $
131Gem::Specification.new do |s| 220Gem::Specification.new do |s|
132 s.name = "${RUBY_FAKEGEM_NAME}" 221 s.name = "${RUBY_FAKEGEM_NAME}"
133 s.version = "${RUBY_FAKEGEM_VERSION}" 222 s.version = "${RUBY_FAKEGEM_VERSION}"
134 s.summary = "${DESCRIPTION}" 223 s.summary = "${quoted_description}"
135 s.homepage = "${HOMEPAGE}" 224 s.homepage = "${HOMEPAGE}"
136 s.require_paths = ["lib"] 225 s.require_paths = [${required_paths}]
137end 226end
138EOF 227EOF
139
140 insinto $(ruby_fakegem_gemsdir)/specifications
141 newins "${T}"/${RUBY_FAKEGEM_NAME}-${_ruby_implementation} ${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}.gemspec
142 ) || die "Unable to install fake gemspec"
143} 228}
144 229
145# @FUNCTION: ruby_fakegem_binwrapper 230# @FUNCTION: ruby_fakegem_binwrapper
146# @USAGE: command [path] 231# @USAGE: command [path]
147# @DESCRIPTION: 232# @DESCRIPTION:
149# path defaults to /usr/bin/$command 234# path defaults to /usr/bin/$command
150ruby_fakegem_binwrapper() { 235ruby_fakegem_binwrapper() {
151 ( 236 (
152 local gembinary=$1 237 local gembinary=$1
153 local newbinary=${2:-/usr/bin/$gembinary} 238 local newbinary=${2:-/usr/bin/$gembinary}
239 local relativegembinary=${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}/bin/${gembinary}
240 local binpath=$(dirname $newbinary)
241 [[ ${binpath} = . ]] && binpath=/usr/bin
242
243 # Try to find out whether the package is going to install for
244 # one or multiple implementations; if we're installing for a
245 # *single* implementation, no need to use “/usr/bin/env ruby”
246 # in the shebang, and we can actually avoid errors when
247 # calling the script by default (see for instance the
248 # JRuby-specific commands).
249 local rubycmd=
250 for implementation in ${USE_RUBY}; do
251 # ignore non-enabled implementations
252 use ruby_targets_${implementation} || continue
253 if [ -z $rubycmd ]; then
254 # if no other implementation was set before, set it.
255 rubycmd="$(ruby_implementation_command ${implementation})"
256 else
257 # if another implementation already arrived, then make
258 # it generic and break out of the loop. This ensures
259 # that we do at most two iterations.
260 rubycmd="/usr/bin/env ruby"
261 break
262 fi
263 done
154 264
155 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF 265 cat - > "${T}"/gembin-wrapper-${gembinary} <<EOF
156#!/usr/bin/env ruby 266#!${rubycmd}
157# This is a simplified version of the RubyGems wrapper 267# This is a simplified version of the RubyGems wrapper
158# 268#
159# Generated by ruby-fakegem.eclass 269# Generated by ruby-fakegem.eclass $Revision: 1.32 $
160 270
161require 'rubygems' 271require 'rubygems'
162 272
163load Gem::GemPathSearcher.new.find('$(tr [A-Z] [a-z] <<< ${RUBY_FAKEGEM_NAME})').full_gem_path + "/bin/${gembinary}" 273load Gem::default_path[-1] + "/gems/${relativegembinary}"
164 274
165EOF 275EOF
166 276
167 exeinto $(dirname $newbinary) 277 exeinto ${binpath:-/usr/bin}
168 newexe "${T}"/gembin-wrapper-${gembinary} $(basename $newbinary) 278 newexe "${T}"/gembin-wrapper-${gembinary} $(basename $newbinary)
169 ) || die "Unable to create fakegem wrapper" 279 ) || die "Unable to create fakegem wrapper"
170} 280}
171 281
172# @FUNCTION: all_fakegem_compile 282# @FUNCTION: all_fakegem_compile
184# Unpack the source archive, including support for unpacking gems. 294# Unpack the source archive, including support for unpacking gems.
185all_ruby_unpack() { 295all_ruby_unpack() {
186 # Special support for extracting .gem files; the file need to be 296 # Special support for extracting .gem files; the file need to be
187 # extracted twice and the mtime from the archive _has_ to be 297 # extracted twice and the mtime from the archive _has_ to be
188 # ignored (it's always set to epoch 0). 298 # ignored (it's always set to epoch 0).
189 # 299 for archive in ${A}; do
190 # This only works if there is exactly one archive and that archive 300 case "${archive}" in
191 # is a .gem file! 301 *.gem)
192 if [[ $(wc -w <<< ${A}) == 1 ]] && 302 # Make sure that we're not running unpack for more than
193 [[ ${A} == *.gem ]]; then 303 # one .gem file, since we won't support that at all.
304 [[ -d "${S}" ]] && die "Unable to unpack ${archive}, ${S} exists"
305
194 ebegin "Unpacking .gem file..." 306 ebegin "Unpacking .gem file..."
195 tar -mxf ${DISTDIR}/${A} || die 307 tar -mxf ${DISTDIR}/${archive} || die
196 eend $? 308 eend $?
197 309
310 ebegin "Uncompressing metadata"
311 gunzip metadata.gz || die
312 eend $?
313
198 mkdir "${S}" 314 mkdir "${S}"
199 pushd "${S}" 315 pushd "${S}" &>/dev/null
200 316
201 ebegin "Unpacking data.tar.gz" 317 ebegin "Unpacking data.tar.gz"
202 tar -mxf "${my_WORKDIR}"/data.tar.gz || die 318 tar -mxf "${my_WORKDIR}"/data.tar.gz || die
203 eend $? 319 eend $?
204 else 320
205 [[ -n ${A} ]] && unpack ${A} 321 popd &>/dev/null
206 fi 322 ;;
323 *.patch.bz2)
324 # We apply the patches with RUBY_PATCHES directly from DISTDIR,
325 # as the WORKDIR variable changes value between the global-scope
326 # and the time all_ruby_unpack/_prepare are called. Since we can
327 # simply decompress them when applying, this is much easier to
328 # deal with for us.
329 einfo "Keeping ${archive} as-is"
330 ;;
331 *)
332 unpack ${archive}
333 ;;
334 esac
335 done
207} 336}
208 337
209# @FUNCTION: all_ruby_compile 338# @FUNCTION: all_ruby_compile
210# @DESCRIPTION: 339# @DESCRIPTION:
211# Compile the package. 340# Compile the package.
216# @FUNCTION: each_fakegem_test 345# @FUNCTION: each_fakegem_test
217# @DESCRIPTION: 346# @DESCRIPTION:
218# Run tests for the package for each ruby target if the test task is defined. 347# Run tests for the package for each ruby target if the test task is defined.
219each_fakegem_test() { 348each_fakegem_test() {
220 local rubyflags= 349 local rubyflags=
221
222 if [[ ${RUBY_FAKEGEM_TASK_TEST} != "" ]]; then
223 ${RUBY} ${rubyflags} -S rake ${RUBY_FAKEGEM_TASK_TEST} || die "tests failed" 350 ${RUBY} ${rubyflags} -S rake ${RUBY_FAKEGEM_TASK_TEST} || die "tests failed"
224 else
225 echo "No test task defined, skipping tests."
226 fi
227} 351}
228 352
353if [[ ${RUBY_FAKEGEM_TASK_TEST} != "" ]]; then
229# @FUNCTION: each_ruby_test 354 # @FUNCTION: each_ruby_test
230# @DESCRIPTION: 355 # @DESCRIPTION:
231# Run the tests for this package. 356 # Run the tests for this package.
232each_ruby_test() { 357 each_ruby_test() {
233 each_fakegem_test 358 each_fakegem_test
234} 359 }
360fi
235 361
236# @FUNCTION: each_fakegem_install 362# @FUNCTION: each_fakegem_install
237# @DESCRIPTION: 363# @DESCRIPTION:
238# Install the package for each ruby target. 364# Install the package for each ruby target.
239each_fakegem_install() { 365each_fakegem_install() {
240 ruby_fakegem_genspec 366 ruby_fakegem_install_gemspec
241 367
242 local _gemlibdirs= 368 local _gemlibdirs="${RUBY_FAKEGEM_EXTRAINSTALL}"
243 for directory in bin lib ${RUBY_FAKEGEM_EXTRAINSTALL}; do 369 for directory in bin lib; do
244 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}" 370 [[ -d ${directory} ]] && _gemlibdirs="${_gemlibdirs} ${directory}"
245 done 371 done
246 372
373 [[ -n ${_gemlibdirs} ]] && \
247 ruby_fakegem_doins -r ${_gemlibdirs} 374 ruby_fakegem_doins -r ${_gemlibdirs}
248} 375}
249 376
250# @FUNCTION: each_ruby_install 377# @FUNCTION: each_ruby_install
251# @DESCRIPTION: 378# @DESCRIPTION:
252# Install the package for each target. 379# Install the package for each target.
257# @FUNCTION: all_fakegem_install 384# @FUNCTION: all_fakegem_install
258# @DESCRIPTION: 385# @DESCRIPTION:
259# Install files common to all ruby targets. 386# Install files common to all ruby targets.
260all_fakegem_install() { 387all_fakegem_install() {
261 if [[ -n ${RUBY_FAKEGEM_DOCDIR} ]] && use doc; then 388 if [[ -n ${RUBY_FAKEGEM_DOCDIR} ]] && use doc; then
262 pushd ${RUBY_FAKEGEM_DOCDIR} 389 for dir in ${RUBY_FAKEGEM_DOCDIR}; do
390 [[ -d ${dir} ]] || continue
391
392 pushd ${dir} &>/dev/null
263 dohtml -r * || die "failed to install documentation" 393 dohtml -r * || die "failed to install documentation"
264 popd 394 popd &>/dev/null
395 done
265 fi 396 fi
266 397
267 if [[ -n ${RUBY_FAKEGEM_EXTRADOC} ]]; then 398 if [[ -n ${RUBY_FAKEGEM_EXTRADOC} ]]; then
268 dodoc ${RUBY_FAKEGEM_EXTRADOC} || die "failed to install further documentation" 399 dodoc ${RUBY_FAKEGEM_EXTRADOC} || die "failed to install further documentation"
269 fi 400 fi
401
402 # binary wrappers; we assume that all the implementations get the
403 # same binaries, or something is wrong anyway, so...
404 if [[ -n ${RUBY_FAKEGEM_BINWRAP} ]]; then
405 local bindir=$(find "${D}" -type d -path "*/gems/${RUBY_FAKEGEM_NAME}-${RUBY_FAKEGEM_VERSION}/bin" -print -quit)
406
407 if [[ -d "${bindir}" ]]; then
408 pushd "${bindir}" &>/dev/null
409 local binaries=$(eval ls ${RUBY_FAKEGEM_BINWRAP})
410 for binary in $binaries; do
411 ruby_fakegem_binwrapper $binary
412 done
413 popd &>/dev/null
414 fi
415 fi
270} 416}
271 417
272# @FUNCTION: all_ruby_install 418# @FUNCTION: all_ruby_install
273# @DESCRIPTION: 419# @DESCRIPTION:
274# Install files common to all ruby targets. 420# Install files common to all ruby targets.

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