Detect when there are changes in the root directory (#11)

Fixes #10

The problem is that `git diff --dirstat=files,0 <commit>` doesn't
show changes in the root directory.
Replace with
`git diff --name-only <commit> | awk -F "/*[^/]*/*$" '{ print ($1 == "" ? "." : $1); }' | sort | uniq`
which will list changes in the root directory as "."
1 file changed
tree: 49e89b1b463ecab2833bcfda6349fb873a770c4d
  1. .asf.yaml
  2. README.md
  3. diff-only/
  4. pulsarbot/
  5. setup-maven/
README.md

Apache Pulsar Test Infrastructure

This repo is used for keeping all the scripts and github actions for running Pulsar test infrastructure.

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