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bugfix: do not send nil to command on unsupported OS #1865

Merged
merged 1 commit into from
May 30, 2017
Merged

bugfix: do not send nil to command on unsupported OS #1865

merged 1 commit into from
May 30, 2017

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arlimus
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@arlimus arlimus commented May 30, 2017

Unsupported operating systems AND the mockloader when using inspec analysis tools may lead to powershell being called with the command being nil, because the resource skips during the initialize phase. Instead, propagate an empty string so that command has a valid input and then skip the resource.

Signed-off-by: Dominik Richter dominik.richter@gmail.com

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bugfix: do not send nil to command on unsupported OS
ba149a9 
Unsupported operating systems AND the mockloader when using inspec analysis tools may lead to powershell being called with the command being `nil`, because the resource skips during the initialize phase. Instead, propagate an empty string so that `command` has a valid input and then skip the resource.

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
@arlimus arlimus added in progress Type: Bug Feature not working as expected labels May 30, 2017
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arlimus commented May 30, 2017

As experienced by @billmeyer :

[bmeyer@mbp2-disp supported]$ inspec compliance upload cis-windows8_1-level2-bitlocker-2.2.0.tar.gz
I, [2017-05-30T10:32:13.360362 #54854]  INFO -- : Checking profile in cis-windows8_1-level2-bitlocker-2.2.0.tar.gz
I, [2017-05-30T10:32:13.360678 #54854]  INFO -- : Metadata OK.
/opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/mixlib-shellout-2.2.7/lib/mixlib/shellout/unix.rb:338:in `exec': no implicit conversion of nil into String (TypeError)
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/mixlib-shellout-2.2.7/lib/mixlib/shellout/unix.rb:338:in `block in fork_subprocess'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/mixlib-shellout-2.2.7/lib/mixlib/shellout/unix.rb:316:in `fork'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/mixlib-shellout-2.2.7/lib/mixlib/shellout/unix.rb:316:in `fork_subprocess'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/mixlib-shellout-2.2.7/lib/mixlib/shellout/unix.rb:93:in `run_command'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/mixlib-shellout-2.2.7/lib/mixlib/shellout.rb:259:in `run_command'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/train-0.23.0/lib/train/transports/local.rb:32:in `run_command'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/inspec-1.25.1/lib/resources/command.rb:31:in `result'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/inspec-1.25.1/lib/resources/command.rb:35:in `stdout'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/inspec-1.25.1/lib/resources/registry_key.rb:213:in `children_keys'
    from /opt/chefdk/embedded/lib/ruby/gems/2.3.0/gems/inspec-1.25.1/lib/resources/registry_key.rb:106:in `children'
    from controls/translated-controls.rb:8260:in `block in load_with_context'
...

chris-rock
chris-rock approved these changes May 30, 2017
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Great improvement

@chris-rock chris-rock merged commit 1f647e1 into master May 30, 2017
@chris-rock chris-rock deleted the dr/unsupported-os-powershell branch May 30, 2017 23:14
adamleff
adamleff reviewed May 31, 2017
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test/unit/resources/powershell_test.rb
@@ -23,4 +23,10 @@
# string should be the same
_(resource.command.to_s).must_equal ps1_script
end

it 'will return an empty array when called on a non-supported OS with children' do
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This really isn't an "empty array" but rather an "empty string"

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