Module: GraphViz::Utils
Defined Under Namespace
Classes: Colors
Instance Method Summary collapse
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#find_executable(bin, custom_paths) ⇒ Object
Since this code is an adaptation of Launchy::Application#find_executable (copiousfreetime.rubyforge.org/launchy/Launchy/Application.html) it follow is licence :.
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#output_and_errors_from_command(cmd) ⇒ Object
:nodoc:.
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#output_from_command(cmd) ⇒ Object
:nodoc:.
Instance Method Details
#find_executable(bin, custom_paths) ⇒ Object
Since this code is an adaptation of Launchy::Application#find_executable (copiousfreetime.rubyforge.org/launchy/Launchy/Application.html) it follow is licence :
Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED AS IS AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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# File 'lib/graphviz/utils.rb', line 20 def find_executable(bin, custom_paths) #:nodoc: system_path = ENV['PATH'] user_given_path = Array(custom_paths).join(File::PATH_SEPARATOR) search_path = system_path + File::PATH_SEPARATOR + user_given_path search_path.split(File::PATH_SEPARATOR).each do |path| file_path = File.join(path,bin) return file_path if File.executable?(file_path) and File.file?(file_path) if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/ # WAS: elsif RUBY_PLATFORM =~ /mswin|mingw/ found_ext = (ENV['PATHEXT'] || '.exe;.bat;.com').split(";").find {|ext| File.executable?(file_path + ext) } return file_path + found_ext if found_ext end end return nil end |
#output_and_errors_from_command(cmd) ⇒ Object
:nodoc:
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# File 'lib/graphviz/utils.rb', line 37 def output_and_errors_from_command(cmd) #:nodoc: unless defined? Open3 begin require 'open3' require 'win32/open3' rescue LoadError end end begin out, err, status = Open3.capture3(*cmd, :binmode => true) [out, err, status.exitstatus] rescue NotImplementedError, NoMethodError IO.popen( *cmd ) do |stdout| stdout.binmode [stdout.read, nil, nil] end end end |
#output_from_command(cmd) ⇒ Object
:nodoc:
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# File 'lib/graphviz/utils.rb', line 56 def output_from_command(cmd) #:nodoc: output, errors, status = output_and_errors_from_command(cmd) if (status.nil? && (errors.nil? || errors.strip.empty?)) || status.zero? output else raise "Error from #{cmd}:\n#{errors}" end end |