get-kustomize-build-base

Command to find the build base to run kustomize build provided some changes from git. Specifically, this command expects to be fed the output of git diff --raw like:

git diff --raw HEAD^1 HEAD | get-kustomimze-build-base --build-root "$PWD"

Where HEAD is a merge commit or a squashed commit representing a pull request. The output depends on the type of change for each file in the output. For modifications it will walk up the directory tree until the nearest kustomization.yaml. For additions or deletions, if the file is not a kustomization.yaml it will do the same as for a modification, otherwise it will walk up the directory, skipping the current directory, until it finds a kustomization.yaml (i.e. a parent build directory that should exist on both sides of the change)

It does not (yet):

• Deduplicate its output, e.g. if two files under a single build directory are change then that directory will be printed twice
• Handle deleting a build directory and its parent, in this case when processing the child build directory it will print the parent directory (which wouldn't exist on the other side of the diff).