Add OnPrChanged

Author: gtjoseph

.github/workflows/OnPRChanged.yml

@@ -0,0 +1,35 @@
+#
+# Workflows, like this one, that are triggered by PRs submitted
+# from forked repositories are severly limited in what they can do
+# for security reasons. For instance, they can't add or remove
+# labels or comments even on the PR that triggered them.  Since
+# we need to both of those things, GitHub recommends creating a
+# separate workflow that does those tasks that's triggered when
+# this PR workflow starts or finishes. Since that workflow isn't
+# being run in the context of a forked repo, it has all the
+# privileges needed to add and remove labels and comments.  The
+# accompanying OnPRStateChangedPriv workflow does just that.
+
+name: PRChanged
+# WARNING!  The run name MUST start with "PR <pr_number>".
+# The accompanying privleged workflow parses this to find
+# the PR number.  It's the only reliable way it can get it.
+run-name: "PR ${{ github.event.number }} Changed by ${{ github.actor }}"
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+concurrency:
+  group: check-${{ github.event.number }}
+  cancel-in-progress: true
+
+jobs:
+  Setup:
+    runs-on: ubuntu-latest
+    steps:
+      - name: DumpEnvironment
+        uses: asterisk/asterisk-ci-actions/DumpEnvironmentAction@main
+        with:
+          save_output: true
+          artifact_id: DumpEnvironment-Setup
+