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1 # Licensed to the Apache Software Foundation (ASF) under one or more
2 # contributor license agreements. See the NOTICE file distributed with this
3 # work for additional information regarding copyright ownership. The ASF
4 # licenses this file to you under the Apache License, Version 2.0 (the
5 # "License"); you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
7 #
8 # http://www.apache.org/licenses/LICENSE-2.0
9 #
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 # License for the specific language governing permissions and limitations under
14 # the License.
15
16
17 # Portion of this file derived from Rake.
18 # Copyright (c) 2003, 2004 Jim Weirich
19 #
20 # Permission is hereby granted, free of charge, to any person obtaining a copy
21 # of this software and associated documentation files (the "Software"), to deal
22 # in the Software without restriction, including without limitation the rights
23 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
24 # copies of the Software, and to permit persons to whom the Software is
25 # furnished to do so, subject to the following conditions:
26 #
27 # The above copyright notice and this permission notice shall be included in
28 # all copies or substantial portions of the Software.
29 #
30 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
31 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
32 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
33 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
34 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
35 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 # SOFTWARE.
37
38
39 require 'rake'
40 require 'highline/import'
41 require 'rubygems/source_info_cache'
42 require 'buildr/core/util'
43 Gem.autoload :SourceInfoCache, 'rubygems/source_info_cache'
44
45
46 # Gem::user_home is nice, but ENV['HOME'] lets you override from the environment.
47 ENV['HOME'] ||= File.expand_path(Gem::user_home)
48 ENV['BUILDR_ENV'] ||= 'development'
49
50
51 module Buildr
52
53 # Provide settings that come from three sources.
54 #
55 # User settings are placed in the .buildr/settings.yaml file located in the user's home directory.
56 # They should only be used for settings that are specific to the user and applied the same way
57 # across all builds. Example for user settings are preferred repositories, path to local repository,
58 # user/name password for uploading to remote repository.
59 #
60 # Build settings are placed in the build.yaml file located in the build directory. They help keep
61 # the buildfile and build.yaml file simple and readable, working to the advantages of each one.
62 # Example for build settings are gems, repositories and artifacts used by that build.
63 #
64 # Profile settings are placed in the profiles.yaml file located in the build directory. They provide
65 # settings that differ in each environment the build runs in. For example, URLs and database
66 # connections will be different when used in development, test and production environments.
67 # The settings for the current environment are obtained by calling #profile.
68 class Settings
69
70 def initialize(application) #:nodoc:
71 @application = application
72 end
73
74 # User settings loaded from setting.yaml file in user's home directory.
75 def user
76 @user ||= load_from('settings', @application.home_dir)
77 end
78
79 # Build settings loaded from build.yaml file in build directory.
80 def build
81 @build ||= load_from('build')
82 end
83
84 # Profiles loaded from profiles.yaml file in build directory.
85 def profiles
86 @profiles ||= load_from('profiles')
87 end
88
89 # :call-seq:
90 # profile => hash
91 #
92 # Returns the profile for the current environment.
93 def profile
94 profiles[@application.environment] ||= {}
95 end
96
97 private
98
99 def load_from(name, path = nil)
100 unless path
101 fail "Internal error: attempting to access local setting before buildfile located" unless @application.rakefile
102 path = File.dirname(@application.rakefile)
103 end
104 file_name = ['yaml', 'yml'].map { |ext| File.join(path, "#{name}.#{ext}") }.find { |fn| File.exist?(fn) }
105 return {} unless file_name
106 yaml = YAML.load(File.read(file_name)) || {}
107 fail "Expecting #{file_name} to be a map (name: value)!" unless Hash === yaml
108 @application.buildfile.enhance [file_name]
109 yaml
110 end
111
112 end
113
114
115 class Application < Rake::Application #:nodoc:
116
117 # Deprecated: rakefile/Rakefile, removed in 1.5
118 DEFAULT_BUILDFILES = ['buildfile', 'Buildfile'] + DEFAULT_RAKEFILES
119
120 attr_reader :rakefiles, :requires
121 private :rakefiles, :requires
122
123 def initialize
124 super
125 @rakefiles = DEFAULT_BUILDFILES.dup
126 @top_level_tasks = []
127 @home_dir = File.expand_path('.buildr', ENV['HOME'])
128 mkpath @home_dir unless File.exist?(@home_dir)
129 @settings = Settings.new(self)
130 @on_completion = []
131 @on_failure = []
132 end
133
134 def run
135 standard_exception_handling do
136 init 'Buildr'
137 load_buildfile
138 top_level
139 end
140 end
141
142 # Not for external consumption.
143 def switch_to_namespace(names) #:nodoc:
144 current, @scope = @scope, names
145 begin
146 yield
147 ensure
148 @scope = current
149 end
150 end
151
152 # Returns list of Gems associated with this buildfile, as listed in build.yaml.
153 # Each entry is of type Gem::Specification.
154 attr_reader :gems
155
156 # Buildr home directory, .buildr under user's home directory.
157 attr_reader :home_dir
158
159 # Copied from BUILD_ENV.
160 def environment
161 ENV['BUILDR_ENV']
162 end
163
164 # Returns the Settings associated with this build.
165 attr_reader :settings
166
167 # :call-seq:
168 # buildfile
169 # Returns the buildfile as a task that you can use as a dependency.
170 def buildfile
171 @buildfile_task ||= BuildfileTask.define_task(File.expand_path(rakefile))
172 end
173
174 # Files that complement the buildfile itself
175 def build_files #:nodoc:
176 deprecated 'Please call buildfile.prerequisites instead'
177 buildfile.prerequisites
178 end
179
180 # Yields to block on successful completion. Primarily used for notifications.
181 def on_completion(&block)
182 @on_completion << block
183 end
184
185 # Yields to block on failure with exception. Primarily used for notifications.
186 def on_failure(&block)
187 @on_failure << block
188 end
189
190 # :call-seq:
191 # deprecated(message)
192 #
193 # Use with deprecated methods and classes. This method automatically adds the file name and line number,
194 # and the text 'Deprecated' before the message, and eliminated duplicate warnings. It only warns when
195 # running in verbose mode.
196 #
197 # For example:
198 # deprecated 'Please use new_foo instead of foo.'
199 def deprecated(message) #:nodoc:
200 return unless verbose
201 "#{caller[1]}: Deprecated: #{message}".tap do |message|
202 @deprecated ||= {}
203 unless @deprecated[message]
204 @deprecated[message] = true
205 warn message
206 end
207 end
208 end
209
210 protected
211
212 def load_buildfile # replaces load_rakefile
213 standard_exception_handling do
214 find_buildfile
215 load_gems
216 load_artifact_ns
217 load_tasks
218 raw_load_buildfile
219 end
220 end
221
222 def top_level # adds on_completion hook
223 standard_exception_handling do
224 if options.show_tasks
225 display_tasks_and_comments
226 elsif options.show_prereqs
227 display_prerequisites
228 elsif options.execute
229 eval options.execute
230 else
231 @start = Time.now
232 top_level_tasks.each { |task_name| invoke_task(task_name) }
233 if verbose
234 elapsed = Time.now - @start
235 real = []
236 real << ('%ih' % (elapsed / 3600)) if elapsed >= 3600
237 real << ('%im' % ((elapsed / 60) % 60)) if elapsed >= 60
238 real << ('%.3fs' % (elapsed % 60))
239 puts $terminal.color("Completed in #{real.join}", :green)
240 end
241 # On OS X this will load Cocoa and Growl which takes half a second we
242 # don't want to measure, so put this after the console message.
243 title, message = "Your build has completed", "#{Dir.pwd}\nbuildr #{@top_level_tasks.join(' ')}"
244 @on_completion.each do |block|
245 block.call(title, message) rescue nil
246 end
247 end
248 end
249 end
250
251 def handle_options
252 options.rakelib = ['tasks']
253
254 OptionParser.new do |opts|
255 opts.banner = "buildr [-f rakefile] {options} targets..."
256 opts.separator ""
257 opts.separator "Options are ..."
258
259 opts.on_tail("-h", "--help", "-H", "Display this help message.") do
260 puts opts
261 exit
262 end
263 standard_buildr_options.each { |args| opts.on(*args) }
264 end.parse!
265 end
266
267 def standard_buildr_options # replaces standard_rake_options
268 [
269 ['--describe', '-D [PATTERN]', "Describe the tasks (matching optional PATTERN), then exit.",
270 lambda { |value|
271 options.show_tasks = true
272 options.full_description = true
273 options.show_task_pattern = Regexp.new(value || '')
274 }
275 ],
276 ['--execute', '-E CODE',
277 "Execute some Ruby code after loading the buildfile",
278 lambda { |value| options.execute = value }
279 ],
280 ['--environment', '-e ENV',
281 "Environment name (e.g. development, test, production).",
282 lambda { |value| ENV['BUILDR_ENV'] = value }
283 ],
284 ['--generate [PATH]',
285 "Generate buildfile from either pom.xml file or directory path.",
286 lambda { |value|
287 value ||= File.exist?('pom.xml') ? 'pom.xml' : Dir.pwd
288 raw_generate_buildfile value
289 exit
290 }
291 ],
292 ['--libdir', '-I LIBDIR', "Include LIBDIR in the search path for required modules.",
293 lambda { |value| $:.push(value) }
294 ],
295 ['--prereqs', '-P [PATTERN]', "Display the tasks and dependencies (matching optional PATTERN), then exit.",
296 lambda { |value|
297 options.show_prereqs = true
298 options.show_task_pattern = Regexp.new(value || '')
299 }
300 ],
301 ['--quiet', '-q', "Do not log messages to standard output.",
302 lambda { |value| verbose(false) }
303 ],
304 ['--buildfile', '-f FILE', "Use FILE as the buildfile.",
305 lambda { |value|
306 @rakefiles.clear
307 @rakefiles << value
308 }
309 ],
310 ['--rakelibdir', '--rakelib', '-R PATH',
311 "Auto-import any .rake files in PATH. (default is 'tasks')",
312 lambda { |value| options.rakelib = value.split(':') }
313 ],
314 ['--require', '-r MODULE', "Require MODULE before executing rakefile.",
315 lambda { |value|
316 begin
317 require value
318 rescue LoadError => ex
319 begin
320 rake_require value
321 rescue LoadError => ex2
322 raise ex
323 end
324 end
325 }
326 ],
327 ['--rules', "Trace the rules resolution.",
328 lambda { |value| options.trace_rules = true }
329 ],
330 ['--no-search', '--nosearch', '-N', "Do not search parent directories for the Rakefile.",
331 lambda { |value| options.nosearch = true }
332 ],
333 ['--silent', '-s', "Like --quiet, but also suppresses the 'in directory' announcement.",
334 lambda { |value|
335 verbose(false)
336 options.silent = true
337 }
338 ],
339 ['--tasks', '-T [PATTERN]', "Display the tasks (matching optional PATTERN) with descriptions, then exit.",
340 lambda { |value|
341 options.show_tasks = true
342 options.show_task_pattern = Regexp.new(value || '')
343 options.full_description = false
344 }
345 ],
346 ['--trace', '-t', "Turn on invoke/execute tracing, enable full backtrace.",
347 lambda { |value|
348 options.trace = true
349 verbose(true)
350 }
351 ],
352 ['--verbose', '-v', "Log message to standard output (default).",
353 lambda { |value| verbose(true) }
354 ],
355 ['--version', '-V', "Display the program version.",
356 lambda { |value|
357 puts "Buildr #{Buildr::VERSION} #{RUBY_PLATFORM[/java/] && '(JRuby '+JRUBY_VERSION+')'}"
358 exit
359 }
360 ]
361 ]
362 end
363
364 def find_buildfile
365 buildfile, location = find_rakefile_location || (tty_output? && ask_generate_buildfile)
366 fail "No Buildfile found (looking for: #{@rakefiles.join(', ')})" if buildfile.nil?
367 @rakefile = buildfile
368 Dir.chdir(location)
369 end
370
371 def ask_generate_buildfile
372 source = choose do |menu|
373 menu.header = "To use Buildr you need a buildfile. Do you want me to create one?"
374 menu.choice("From Maven2 POM file") { 'pom.xml' } if File.exist?('pom.xml')
375 menu.choice("From directory structure") { Dir.pwd }
376 menu.choice("Cancel") { }
377 end
378 if source
379 buildfile = raw_generate_buildfile(source)
380 [buildfile, File.dirname(buildfile)]
381 end
382 end
383
384 def raw_generate_buildfile(source)
385 # We need rakefile to be known, for settings.build to be accessible.
386 @rakefile = File.expand_path(DEFAULT_BUILDFILES.first)
387 fail "Buildfile already exists" if File.exist?(@rakefile) && !(tty_output? && agree('Buildfile exists, overwrite?'))
388 script = File.directory?(source) ? Generate.from_directory(source) : Generate.from_maven2_pom(source)
389 File.open @rakefile, 'w' do |file|
390 file.puts script
391 end
392 puts "Created #{@rakefile}" if verbose
393 @rakefile
394 end
395
396 def raw_load_buildfile # replaces raw_load_rakefile
397 puts "(in #{Dir.pwd}, #{environment})" unless options.silent
398 load File.expand_path(@rakefile) if @rakefile && @rakefile != ''
399 load_imports
400 Buildr.projects
401 end
402
403 # Load/install all Gems specified in build.yaml file.
404 def load_gems #:nodoc:
405 missing_deps, installed = listed_gems.partition { |gem| gem.is_a?(Gem::Dependency) }
406 unless missing_deps.empty?
407 newly_installed = Util::Gems.install(*missing_deps)
408 installed += newly_installed
409 end
410 installed.each do |spec|
411 if gem(spec.name, spec.version.to_s)
412 # TODO: is this intended to load rake tasks from the installed gems?
413 # We should use a convention like .. if the gem has a _buildr.rb file, load it.
414
415 #FileList[spec.require_paths.map { |path| File.expand_path("#{path}/*.rb", spec.full_gem_path) }].
416 # map { |path| File.basename(path) }.each { |file| require file }
417 #FileList[File.expand_path('tasks/*.rake', spec.full_gem_path)].each do |file|
418 # Buildr.application.add_import file
419 #end
420 end
421 end
422 @gems = installed
423 end
424
425 # Returns Gem::Specification for every listed and installed Gem, Gem::Dependency
426 # for listed and uninstalled Gem, which is the installed before loading the buildfile.
427 def listed_gems #:nodoc:
428 Array(settings.build['gems']).map do |dep|
429 name, trail = dep.scan(/^\s*(\S*)\s*(.*)\s*$/).first
430 versions = trail.scan(/[=><~!]{0,2}\s*[\d\.]+/)
431 versions = ['>= 0'] if versions.empty?
432 dep = Gem::Dependency.new(name, versions)
433 Gem::SourceIndex.from_installed_gems.search(dep).last || dep
434 end
435 end
436
437 # Load artifact specs from the build.yaml file, making them available
438 # by name ( ruby symbols ).
439 def load_artifact_ns #:nodoc:
440 hash = settings.build['artifacts']
441 return unless hash
442 raise "Expected 'artifacts' element to be a hash" unless Hash === hash
443 # Currently we only use one artifact namespace to rule them all. (the root NS)
444 Buildr::ArtifactNamespace.load(:root => hash)
445 end
446
447 # Loads buildr.rb files from users home directory and project directory.
448 # Loads custom tasks from .rake files in tasks directory.
449 def load_tasks #:nodoc:
450 # TODO: this might need to be split up, look for deprecated features, better method name.
451 files = [ File.expand_path('buildr.rb', ENV['HOME']), 'buildr.rb' ].select { |file| File.exist?(file) }
452 files += [ File.expand_path('buildr.rake', ENV['HOME']), File.expand_path('buildr.rake') ].
453 select { |file| File.exist?(file) }.each { |file| warn "Please use '#{file.ext('rb')}' instead of '#{file}'" }
454 files += (options.rakelib || []).collect { |rlib| Dir["#{rlib}/*.rake"] }.flatten
455
456 files.each do |file|
457 unless $LOADED_FEATURES.include?(file)
458 load file
459 $LOADED_FEATURES << file
460 end
461 end
462 buildfile.enhance files
463 true
464 end
465
466 def display_tasks_and_comments
467 displayable_tasks = tasks.select { |t| t.comment && t.name =~ options.show_task_pattern }
468 if options.full_description
469 displayable_tasks.each do |t|
470 puts "buildr #{t.name_with_args}"
471 t.full_comment.split("\n").each do |line|
472 puts " #{line}"
473 end
474 puts
475 end
476 else
477 width = displayable_tasks.collect { |t| t.name_with_args.length }.max || 10
478 max_column = truncate_output? ? terminal_width - name.size - width - 7 : nil
479 displayable_tasks.each do |t|
480 printf "#{name} %-#{width}s # %s\n",
481 t.name_with_args, max_column ? truncate(t.comment, max_column) : t.comment
482 end
483 end
484 end
485
486 def display_prerequisites
487 displayable_tasks = tasks.select { |t| t.name =~ options.show_task_pattern }
488 displayable_tasks.each do |t|
489 puts "buildr #{t.name}"
490 t.prerequisites.each { |pre| puts " #{pre}" }
491 end
492 end
493
494 def standard_exception_handling # adds on_failure hook
495 begin
496 yield
497 rescue SystemExit => ex
498 # Exit silently with current status
499 exit(ex.status)
500 rescue OptionParser::ParseError => ex
501 $stderr.puts $terminal.color(ex.message, :red)
502 exit(1)
503 rescue Exception => ex
504 title, message = "Your build failed with an error", "#{Dir.pwd}:\n#{ex.message}"
505 @on_failure.each do |block|
506 block.call(title, message, ex) rescue nil
507 end
508 # Exit with error message
509 $stderr.puts "Buildr aborted!"
510 $stderr.puts $terminal.color(ex.message, :red)
511 if options.trace
512 $stderr.puts ex.backtrace.join("\n")
513 else
514 $stderr.puts ex.backtrace.select { |str| str =~ /#{rakefile}/ }.map { |line| $terminal.color(line, :red) }.join("\n") if rakefile
515 $stderr.puts "(See full trace by running task with --trace)"
516 end
517 exit(1)
518 end
519 end
520
521 end
522
523
524 # This task stands for the buildfile and all its associated helper files (e.g., buildr.rb, build.yaml).
525 # By using this task as a prerequisite for other tasks, you can ensure these tasks will be needed
526 # whenever the buildfile changes.
527 class BuildfileTask < Rake::FileTask #:nodoc:
528
529 def timestamp
530 ([name] + prerequisites).map { |f| File.stat(f).mtime }.max rescue Time.now
531 end
532 end
533
534
535 class << self
536
537 # Returns the Buildr::Application object.
538 def application
539 Rake.application
540 end
541
542 def application=(app) #:nodoc:
543 Rake.application = app
544 end
545
546 # Returns the Settings associated with this build.
547 def settings
548 Buildr.application.settings
549 end
550
551 # Copied from BUILD_ENV.
552 def environment
553 Buildr.application.environment
554 end
555
556 end
557
558 Buildr.application = Buildr::Application.new
559
560 end
561
562
563 # Add a touch of color when available and running in terminal.
564 if $stdout.isatty
565 begin
566 require 'Win32/Console/ANSI' if Config::CONFIG['host_os'] =~ /mswin/
567 HighLine.use_color = true
568 rescue LoadError
569 end
570 else
571 HighLine.use_color = false
572 end
573
574
575 alias :warn_without_color :warn
576
577 # Show warning message.
578 def warn(message)
579 warn_without_color $terminal.color(message.to_s, :blue) if verbose
580 end
581
582 # Show error message. Use this when you need to show an error message and not throwing
583 # an exception that will stop the build.
584 def error(message)
585 puts $terminal.color(message.to_s, :red)
586 end
587
588 # Show optional information. The message is printed only when running in verbose
589 # mode (the default).
590 def info(message)
591 puts message if verbose
592 end
593
594 # Show message. The message is printed out only when running in trace mode.
595 def trace(message)
596 puts message if Buildr.application.options.trace
597 end
598
599
600 module Rake #:nodoc
601 # Rake's circular dependency checks (InvocationChain) only applies to task prerequisites,
602 # all other cases result in the non too-descriptive thread sleeping error. This change can
603 # deal with circular dependencies that occur from direct task invocation, e.g:
604 # task 'foo'=>'bar'
605 # task 'bar' do
606 # task('foo').invoke
607 # end
608 class Task #:nodoc:
609 def invoke(*args)
610 task_args = TaskArguments.new(arg_names, args)
611 invoke_with_call_chain(task_args, Thread.current[:rake_chain] || InvocationChain::EMPTY)
612 end
613
614 def invoke_with_call_chain(task_args, invocation_chain)
615 new_chain = InvocationChain.append(self, invocation_chain)
616 @lock.synchronize do
617 if application.options.trace
618 puts "** Invoke #{name} #{format_trace_flags}"
619 end
620 return if @already_invoked
621 @already_invoked = true
622 begin
623 invoke_prerequisites(task_args, new_chain)
624 rescue
625 trace "Exception while invoking prerequisites of task #{self.inspect}"
626 raise
627 end
628 begin
629 old_chain, Thread.current[:rake_chain] = Thread.current[:rake_chain], new_chain
630 execute(task_args) if needed?
631 ensure
632 Thread.current[:rake_chain] = nil
633 end
634 end
635 end
636 end
637 end
638
639
640 module RakeFileUtils #:nodoc:
641 FileUtils::OPT_TABLE.each do |name, opts|
642 default_options = []
643 if opts.include?(:verbose) || opts.include?("verbose")
644 default_options << ':verbose => RakeFileUtils.verbose_flag == true'
645 end
646 next if default_options.empty?
647 module_eval(<<-EOS, __FILE__, __LINE__ + 1)
648 def #{name}( *args, &block )
649 super(
650 *rake_merge_option(args,
651 #{default_options.join(', ')}
652 ), &block)
653 end
654 EOS
655 end
656 end
Generated using the rcov code coverage analysis tool for Ruby
version 0.8.2.1.