Added recusion to handler copy + debugPrint fn

[rgee0]

Signed-off-by: rgee0 richard@technologee.co.uk

Addresses issue #59.

Description

Changes the recursive arg to true on the handler copyFiles call so that sub directories within the handler are also copied into the build directory.
Extracted a debugPrint function to avoid code repetition as The new directory branch in copyFiles now messages out only if the system is creating a new directory and debug is enabled.
Corrected a typo which meant that err was being tested rather than newDirErr when a new directory is being created.
Changed FaaS to OpenFaaS where seen.

Motivation and Context

#59

• There is a raised an issue to propose this change (required)

How Has This Been Tested?

Created 10 levels of files and folders beneath a handler folder
Ran ./faas-cli -action build -yaml ./samples.yml
Confirmed that the images built successfully.
Confirmed that the expected files and folders were extant in the build folder following completion of build

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have signed-off my commits with git commit -s
• I have added tests to cover my changes.
• All new and existing tests passed.

[alexellis]

Thanks for the fixes. If all usages are recursive then the flag is redundant and can be removed.

[alexellis]

Can we get any test coverage for this scenario?

[johnmccabe]

Could add a --debug flag for turning this on across all commands, something for a seperate PR perhaps.

[rgee0]

Yes, that was kind of the theory behind pulling it out. Suggest a separate PR since this one is a 'bug' fix

[johnmccabe]

have built and run a few template builds locally and it looks good 👍

[alexellis]

@rgee0 Merged.

Thanks for helping to integration test @johnmccabe. I would like some automated tests in "Golang" for this.. doesn't have to be super extensive. Can either of you take that on?