* Extend .dockerignore integration test with copies in later stages
.dockerignore should continue to apply when copying from the build context in later stages, but it currently doesn't
* Replace excluded global with passed along FileContext struct
This new FileContext struct allows much cleaner handling of context specific file exclusions.
The global excluded file state is no longer needed.
Additionally this also fixes the issue where excluded files aren't being applied for build context copies in later build stages.
This change calculates the exact files and directories needed between
stages used in the COPY command. Instead of saving the entire
stage as a tarball, we now save only the necessary files.
This change fixes that by properly "replaying" the Dockerfile and mutating the config when
calculating cache keys. Previously we were looking at the wrong cache key for each command
when there was more than one.
* Rework cache key generation a bit.
Cache keys are now based on the previous commands, rather than the previous state
of the filesystem.
* Refactor command interface a bit, only cache the context for commands that use it.
CacheCommand returns true if the command should be cached. Currently,
it's only true for RUN but can be added to ADD/COPY later on (these are
different since the contents of files for ADD/COPY need to be included
in the cache key generation).
I also changed CreatedBy to String so that we can log each command
before cache extraction or regular execution takes place.
I changed UnpackLocalTarArchive to return a list of files that were
extracted, so that the list of snapshotted files for ADD is more
accurate. Previously, we used to add all files in the extracted dir to
be snapshotted, but this could result in preexisting files being
snapshotted again.
* 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.
Tinjo Schöni
Yoan Blanc
Dani Raznikov
Tejal Desai
Cole Wippern
Don McCasland
priyawadhwa
Taylor Barrella
Роман Небалуев
dlorenc
Nick Kubala
Jon Johnson
Matt Rickard
Cyrille Hemidy