The previous algorithm for comparing files used python's
dircmp and is considered to be a shallow comparision. This
allowed distinctly small possibilities that two files being
compared could be different but not caught.
We now use go-mtree to do the comparison. This can emulate the
shallow comparison we had before but we can also adding a
sha256digest as part of the comparison using the new --keywords
option.
Also, made slight tweaks to gomtree functions in Atomic.util
so we debug and influence the return of JSON data.
This solves https://github.com/projectatomic/atomic/issues/761
Closes: #777
Approved by: rhatdan
With the -m switch, we can now compare the metadata between
the two diff objects. We report only the differences between them. All
common data is deleted from the object structures.
This solves --> https://github.com/projectatomic/atomic/issues/760
Closes: #764
Approved by: baude
https://github.com/projectatomic/atomic/issues/378 points out that
when an rpm diff is done with --names-only, the output messaging was
not clear enough. Reworked the man page, --help, and output message
to clarify that when --names-only is used, it only compares RPMs
based on names and NOT versions.
Nice find by Micah.
Closes: #381
Approved by: rhatdan
Allow users to diff between two docker images|container. There
are two types of diffs that can be run -- a file diff or an
RPM diff. The file diff is always the default. The RPM diff
can be added with -r. The file diff can be excluded with -n.
