Module: Java::Commands

Defined in:
lib/buildr/java/commands.rb

Overview

JDK commands: java, javac, javadoc, etc.

Class Method Summary collapse

Class Method Details

.apt(*args) ⇒ Object

:call-seq:

apt(*files, options)

Runs Apt with the specified arguments.

The last argument may be a Hash with additional options:

  • :compile – If true, compile source files to class files.

  • :source – Specifies source compatibility with a given JVM release.

  • :output – Directory where to place the generated source files, or the generated class files when compiling.

  • :classpath – One or more file names, tasks or artifact specifications. These are all expanded into artifacts, and all tasks are invoked.



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# File 'lib/buildr/java/commands.rb', line 72

def apt(*args)
  options = Hash === args.last ? args.pop : {}
  rake_check_options options, :compile, :source, :output, :classpath

  files = args.flatten.map(&:to_s).
    collect { |arg| File.directory?(arg) ? FileList["#{arg}/**/*.java"] : arg }.flatten
  cmd_args = [ Buildr.application.options.trace ? '-verbose' : '-nowarn' ]
  if options[:compile]
    cmd_args << '-d' << options[:output].to_s
  else
    cmd_args << '-nocompile' << '-s' << options[:output].to_s
  end
  cmd_args << '-source' << options[:source] if options[:source]
  classpath = classpath_from(options)
  tools = Java.tools_jar
  classpath << tools if tools
  cmd_args << '-classpath' << classpath.join(File::PATH_SEPARATOR) unless classpath.empty?
  cmd_args += files
  unless Buildr.application.options.dryrun
    info 'Running apt'
    trace (['apt'] + cmd_args).join(' ')
    Java.load
    Java.com.sun.tools.apt.Main.process(cmd_args.to_java(Java.java.lang.String)) == 0 or
      fail 'Failed to process annotations, see errors above'
  end
end

.java(*args, &block) ⇒ Object

:call-seq:

java(class, *args, options?)

Runs Java with the specified arguments.

The last argument may be a Hash with additional options:

  • :classpath – One or more file names, tasks or artifact specifications. These are all expanded into artifacts, and all tasks are invoked.

  • :java_args – Any additional arguments to pass (e.g. -hotspot, -xms)

  • :properties – Hash of system properties (e.g. ‘path’=>base_dir).

  • :name – Shows this name, otherwise shows the first argument (the class name).

  • :verbose – If true, prints the command and all its argument.



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# File 'lib/buildr/java/commands.rb', line 37

def java(*args, &block)
  options = Hash === args.last ? args.pop : {}
  options[:verbose] ||= Buildr.application.options.trace || false
  rake_check_options options, :classpath, :java_args, :properties, :name, :verbose

  name = options[:name] || "java #{args.first}"
  cmd_args = [path_to_bin('java')]
  classpath = classpath_from(options)
  cmd_args << '-classpath' << classpath.join(File::PATH_SEPARATOR) unless classpath.empty?
  options[:properties].each { |k, v| cmd_args << "-D#{k}=#{v}" } if options[:properties]
  cmd_args += (options[:java_args] || (ENV['JAVA_OPTS'] || ENV['JAVA_OPTIONS']).to_s.split).flatten
  cmd_args += args.flatten.compact
  unless Buildr.application.options.dryrun
    info "Running #{name}"
    block = lambda { |ok, res| fail "Failed to execute #{name}, see errors above" unless ok } unless block
    puts cmd_args.join(' ') if Buildr.application.options.trace
    cmd_args = cmd_args.map(&:inspect).join(' ') if Util.win_os?
    system(*cmd_args).tap do |ok|
      block.call ok, $?
    end
  end
end

.javac(*args) ⇒ Object

:call-seq:

javac(*files, options)

Runs Javac with the specified arguments.

The last argument may be a Hash with additional options:

  • :output – Target directory for all compiled class files.

  • :classpath – One or more file names, tasks or artifact specifications. These are all expanded into artifacts, and all tasks are invoked.

  • :sourcepath – Additional source paths to use.

  • :javac_args – Any additional arguments to pass (e.g. -extdirs, -encoding)

  • :name – Shows this name, otherwise shows the working directory.



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# File 'lib/buildr/java/commands.rb', line 111

def javac(*args)
  options = Hash === args.last ? args.pop : {}
  rake_check_options options, :classpath, :sourcepath, :output, :javac_args, :name

  files = args.flatten.each { |f| f.invoke if f.respond_to?(:invoke) }.map(&:to_s).
    collect { |arg| File.directory?(arg) ? FileList["#{arg}/**/*.java"] : arg }.flatten
  name = options[:name] || Dir.pwd

  cmd_args = []
  classpath = classpath_from(options)
  cmd_args << '-classpath' << classpath.join(File::PATH_SEPARATOR) unless classpath.empty?
  cmd_args << '-sourcepath' << options[:sourcepath].join(File::PATH_SEPARATOR) if options[:sourcepath]
  cmd_args << '-d' << options[:output].to_s if options[:output]
  cmd_args += options[:javac_args].flatten if options[:javac_args]
  cmd_args += files
  unless Buildr.application.options.dryrun
    info "Compiling #{files.size} source files in #{name}"
    trace (['javac'] + cmd_args).join(' ')
    Java.load
    Java.com.sun.tools.javac.Main.compile(cmd_args.to_java(Java.java.lang.String)) == 0 or 
      fail 'Failed to compile, see errors above'
  end
end

.javadoc(*args) ⇒ Object

:call-seq:

javadoc(*files, options)

Runs Javadocs with the specified files and options.

This method accepts the following special options:

  • :output – The output directory

  • :classpath – Array of classpath dependencies.

  • :sourcepath – Array of sourcepaths (paths or tasks).

  • :name – Shows this name, otherwise shows the working directory.

All other options are passed to Javadoc as following:

  • true – As is, for example, :author=>true becomes -author

  • false – Prefixed, for example, :index=>false becomes -noindex

  • string – Option with value, for example, :windowtitle=>‘My project’ becomes -windowtitle “My project”

  • array – Option with set of values separated by spaces.



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# File 'lib/buildr/java/commands.rb', line 151

def javadoc(*args)
  options = Hash === args.last ? args.pop : {}

  cmd_args = [ '-d', options[:output], Buildr.application.options.trace ? '-verbose' : '-quiet' ]
  options.reject { |key, value| [:output, :name, :sourcepath, :classpath].include?(key) }.
    each { |key, value| value.invoke if value.respond_to?(:invoke) }.
    each do |key, value|
      case value
      when true, nil
        cmd_args << "-#{key}"
      when false
        cmd_args << "-no#{key}"
      when Hash
        value.each { |k,v| cmd_args << "-#{key}" << k.to_s << v.to_s }
      else
        cmd_args += Array(value).map { |item| ["-#{key}", item.to_s] }.flatten
      end
    end
  [:sourcepath, :classpath].each do |option|
    options[option].to_a.flatten.tap do |paths|
      cmd_args << "-#{option}" << paths.flatten.map(&:to_s).join(File::PATH_SEPARATOR) unless paths.empty?
    end
  end
  cmd_args += args.flatten.uniq
  name = options[:name] || Dir.pwd
  unless Buildr.application.options.dryrun
    info "Generating Javadoc for #{name}"
    trace (['javadoc'] + cmd_args).join(' ')
    Java.load
    Java.com.sun.tools.javadoc.Main.execute(cmd_args.to_java(Java.java.lang.String)) == 0 or
      fail 'Failed to generate Javadocs, see errors above'
  end
end