Module: Buildr::Util

Extended by:
Util
Included in:
Util
Defined in:
lib/buildr/core/util.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#recursive_with_dot_files(*dirs) ⇒ Object

Generally speaking, it’s not a good idea to operate on dot files (files starting with dot). These are considered invisible files (.svn, .hg, .irbrc, etc). Dir.glob/FileList ignore them on purpose. There are few cases where we do have to work with them (filter, zip), a better solution is welcome, maybe being more explicit with include. For now, this will do.



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# File 'lib/buildr/core/util.rb', line 45

def recursive_with_dot_files(*dirs)
  FileList[dirs.map { |dir| File.join(dir, '/**/{*,.*}') }].reject { |file| File.basename(file) =~ /^[.]{1,2}$/ }
end

#relative_path(to, from = '.') ⇒ Object

Return the path to the first argument, starting from the path provided by the second argument.

For example:

relative_path('foo/bar', 'foo')
=> 'bar'
relative_path('foo/bar', 'baz')
=> '../foo/bar'
relative_path('foo/bar')
=> 'foo/bar'
relative_path('/foo/bar', 'baz')
=> '/foo/bar'



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# File 'lib/buildr/core/util.rb', line 33

def relative_path(to, from = '.')
  to = Pathname.new(to).cleanpath
  return to.to_s if from.nil?
  to_path = Pathname.new(File.expand_path(to.to_s, "/"))
  from_path = Pathname.new(File.expand_path(from.to_s, "/"))
  to_path.relative_path_from(from_path).to_s
end

#tools_jar ⇒ Object

Most platforms requires tools.jar to be on the classpath, tools.jar contains the Java compiler (OS X and AIX are two exceptions we know about, may be more). Guess where tools.jar is from JAVA_HOME, which hopefully points to the JDK, but maybe the JRE. Return nil if not found.



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# File 'lib/buildr/core/util.rb', line 53

def tools_jar #:nodoc:
  @tools_jar ||= begin
                   home = ENV['JAVA_HOME'] or fail 'Are we forgetting something? JAVA_HOME not set.'
                   %w[lib/tools.jar ../lib/tools.jar].map { |path| File.expand_path(path, home) }.
                     find { |path| File.exist?(path) }
                 end
end