Source To Image Versions Save

Bug fixes:

• https://github.com/openshift/source-to-image/issues/867 Apply .s2iignore during copy from local directory

Refactors:

• https://github.com/openshift/source-to-image/pull/967 remove basename in main(), the var basename is not used in func CommandFor()
• https://github.com/openshift/source-to-image/pull/975 Refactor s2i Tests for ci-operator
• https://github.com/openshift/source-to-image/pull/976 Bump release golang to 1.12.5
• https://github.com/openshift/source-to-image/pull/982 Move from glog to klog
• https://github.com/openshift/source-to-image/pull/988 remove func GetStrategy

Contributors:

• @nabilbendafi
• @adambkaplan
• @soulseen

• Bug 1668130: --as-dockerfile builds report errors if the ScriptsURL does not contain any required s2i scripts.
• S2I builds no longer fail if UTF-8 filenames are present in source code.
• #955: Allow concurrent S2I builds by seeding the randomizer used to name s2i build containers.

• add --assemble-runtime-user flag for extended builds
• fix container termination checking logic to be more robust
• better checking for recursive copy conditions

• Various fixes to dockerfile generation behavior
• New option to control symlink behavior
• Introduce --add-host option to add host resolutions to containers being run
• Increase timeout on tar extraction from 30s to 5 minutes
• Clean up saved artifacts if an error occurs while extracting them

• Add experimental support for generating Dockerfiles instead of Images

• Switched to glide dependency management
• Pulled in docker patch to address hanging container pipes
• Prevent save-artifacts tar extraction from overwriting files outside the working directory
• Tolerate semi-colon separated list of volumes
• Perform URL redaction w/o mutating original content

• patch for docker client hang issue

• Cleanup of the autogenerated sample
• Validation of output image tag name
• Force removal of intermediate images created by layered builds
• Proper error handling for unparseable git urls
• Fix miscellaneous nil pointer errors

Corresponds to Origin v3.7.0

• Fixed bug related to restoring multiple environment variables from an .s2ifile
• Include empty directories when sending source code to assemble container
• Ensure directories have proper permissions when extracted
• Make git clone output less noisy unless verbose logging is enabled
• Fixes to git url parsing/handling
• Add --network flag to allow indicating the docker network to use for the assemble container
• Allow builder images to indicate what user to run assemble as, via io.openshift.s2i.assemble-user
• Bug related to image pull/image inspection ordering
• Bug related to order of image label overriding
• Fixed handling of broken symlink references

• Ignore blank lines in .s2iignore file
• Allow presence of a /tmp/.s2i/image_metadata.json to contribute labels to be applied to the output image