The previous version of the sync script ran `helm dep update` which
would recreate the requirements.lock file. This caused new builds
of charts as a total package with different versions of dependencies
but the same chart version. The package was mutating.
This change works towards our goal of immutable charts for a chart
at a version.
This change does the following:
- Adds a circleci config file
- Has 2 scripts. One for installing tools and a separate one for
executing tests
- Removes lint testing from the changed.sh script since it is
performed elsewhere
- For linting changes the git diff mechanism to look at the merge
base rather than all differences from master. The intent is to
look for changes in this request rather than including those
in PRs that may have already been merged to master while this
one lingered.
Ref #2337
Vic Iglesias
Reinhard Nägele
TaoGe
Matt Farina