Class: Aruba::Platforms::WindowsEnvironmentVariables

Inherits:
UnixEnvironmentVariables show all
Defined in:
lib/aruba/platforms/windows_environment_variables.rb

Overview

Windows is case-insensitive when it accesses its environment variables. That means that at the Windows command line:

C:>set Path C:>Path=.;.\bin;c:\rubys\ruby-2.1.6-p336\bin; C:>set PATH C:>Path=.;.\bin;c:\rubys\ruby-2.1.6-p336\bin;

If you access environment variables through ENV, you can access values no matter the case of the key:

irb: > ENV["Path"] => ".;.\bin;c:\rubys\ruby-2.1.6-p336\bin;" irb: > ENV["Path"] => ".;.\bin;c:\rubys\ruby-2.1.6-p336\bin;"

But if you copy the ENV to a hash, Ruby treats the keys as case sensitive:

irb: > env_copy = ENV.to_hash => "ANSICON"=>"119x1000 (119x58)", "ANSICON_DEF"=>"7", APPDATA"=>"C:\Users\blorf\AppData\Roaming", .... irb: > env["Path"] => ".;.\bin;c:\rubys\ruby-2.1.6-p336\bin;" irb: > env["PATH"] => nil

Thus we turn all of the environment variable keys to upper case so that aruba is ensured that accessing environment variables with upper case keys will always work.

Constant Summary

Constants inherited from UnixEnvironmentVariables

UnixEnvironmentVariables::UNDEFINED

Instance Method Summary collapse

Methods inherited from UnixEnvironmentVariables

#clear, #method_missing, #respond_to_missing?, #to_h

Constructor Details

#initialize(env = ENV.to_hash) ⇒ WindowsEnvironmentVariables

Returns a new instance of WindowsEnvironmentVariables.



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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 36

def initialize(env = ENV.to_hash)
  @actions = []

  @env = if RUBY_VERSION <= '1.9.3'
           # rubocop:disable Style/EachWithObject
           env.inject({}) { |a, (k,v)| a[k.to_s.upcase] = v; a }
         # rubocop:enable Style/EachWithObject
         else
           env.each_with_object({}) { |(k,v), a| a[k.to_s.upcase] = v }
         end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Aruba::Platforms::UnixEnvironmentVariables

Instance Method Details

#[](name) ⇒ Object 



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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 68

def [](name)
  super(name.upcase)
end

#[]=(name, value) ⇒ Object 



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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 72

def []=(name, value)
  super(name.upcase, value)
end

#append(name, value) ⇒ Object 



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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 76

def append(name, value)
  super(name.upcase, value)
end

#delete(name, value) ⇒ Object 



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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 84

def delete(name, value)
  super(name.upcase, value)
end

#fetch(name, default = UnixEnvironmentVariables::UNDEFINED) ⇒ Object 



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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 60

def fetch(name, default = UnixEnvironmentVariables::UNDEFINED)
  super(name.upcase, default)
end

#key?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 64

def key?(name)
  super(name.upcase)
end

#prepend(name, value) ⇒ Object 



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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 80

def prepend(name, value)
  super(name.upcase, value)
end

#update(other_env, &block) ⇒ Object 



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# File 'lib/aruba/platforms/windows_environment_variables.rb', line 48

def update(other_env, &block)
  other_env = if RUBY_VERSION <= '1.9.3'
                # rubocop:disable Style/EachWithObject
                other_env.inject({}) { |a, (k,v)| a[k.to_s.upcase] = v; a }
              # rubocop:enable Style/EachWithObject
              else
                other_env.each_with_object({}) { |(k,v), a| a[k.to_s.upcase] = v }
              end

  super(other_env, &block)
end