Class Raven::JavacTask
In: lib/raven/java_tasks.rb
Parent: Rake::Task

Executes Javac by passing it everything it needs. Stuff like a classpath and sources. The classpath is built by checking the prerequisites of the javac task. When a prerequisite is a dependency declaration (dependency task), it takes each declared Gems and adds the jar files found in them to the classpath.

Can be customized by adding directories to the build_path using the << operator (if none defined, default is src/main/java).

Methods

build_path   build_path=   execute  

Public Instance methods

build_path()

[Source]

    # File lib/raven/java_tasks.rb, line 82
82:       def build_path
83:         @build_path ||= []
84:       end
build_path=(p)

[Source]

    # File lib/raven/java_tasks.rb, line 86
86:       def build_path=(p)
87:         @build_path = [p]
88:       end
execute()

[Source]

    # File lib/raven/java_tasks.rb, line 46
46:     def execute
47:       super
48:       @classpath = Raven.build_cp(prerequisites)
49:       @classpath << "target/classes"
50:       @build_path = ["src/main/java"] unless @build_path
51:       
52:       puts "Building path #{@build_path.join(' ')}" if RakeFileUtils.verbose_flag
53:       
54:       Dir.mkdir("target") unless File.exist?("target")
55:       Dir.mkdir("target/classes")  unless File.exist?("target/classes")
56:       # Getting the source files to compile. Filtrating sources already

57:       # compiled having a fresh enough class

58:       source_files = @build_path.collect do |d|
59:         puts "Warning: build path #{d} doesn't exist!" unless File.exist? d
60:         Dir.glob("#{d}/**/*.java").select do |java|
61:           classfile = 'target/classes/' + java[d.length, (java.length - 5 - d.length)] + '.class'
62:           File.exist?(classfile) ? File.stat(java).mtime > File.stat(classfile).mtime : true
63:         end
64:         end.flatten
65:         
66:         if (source_files.size > 0)
67:           # Getting only package names, it shortens the command line

68:           source_pkg = Set.new
69:           source_files.each { |src| source_pkg << File.join(File.dirname(src), '*.java') }
70:           # Executing javac

71:           puts "javac -classpath \"#{@classpath.join(CP_SEP)}\" -sourcepath \"#{@build_path.join(CP_SEP)}\" -d target/classes #{source_pkg.to_a.join(' ')}" if RakeFileUtils.verbose_flag
72:           `javac -classpath "#{@classpath.join(CP_SEP)}" -sourcepath "#{@build_path.join(CP_SEP)}" -d target/classes #{source_pkg.to_a.join(' ')}`
73:           unless $?.exitstatus == 0
74:             puts "Build failed, see above errors."
75:             exit
76:           end
77:         else
78:           puts 'All class files are up to date.' if RakeFileUtils.verbose_flag
79:         end
80:       end

[Validate]