Before #289 was merged, when copying over directories for COPY kaniko
would get a list of all files at the destination specified and add them
to the list of files to be snapshotted. If the destination was root it
would add all files. This worked because the snapshotter made sure the
file had been changed before adding it to the layer.
After #289, we changed the logic to add all files snapshotted to a layer
without checking if the files had been changed. This created the bug in
got all the files at root and added them to the layer without checking
if they had been changed.
This change should fix this bug. Now, the CopyDir function returns a
list of files it copied over and only those files are added to the list
of files to be snapshotted.
Should fix#314
* Vendor changes for go-containerregistry switch.
* Manual changes for go-containerregistry switch.
The biggest change is refactoring the tarball unpacking.
* Pull more of container-diff out.
* More vendor removals.
* More unit tests.
Priya Wadhwa
Nick Kubala
Jon Johnson
dlorenc
Matt Rickard