PYTHON-4243 Use GitHub App to Auto Assign Reviewer (#1539)

.evergreen/config.yml

@@ -2051,6 +2051,22 @@ tasks:
         - func: "attach benchmark test results"
         - func: "send dashboard data"
 
+    - name: "assign-pr-reviewer"
+      tags: ["pr"]
+      commands:
+        - command: shell.exec
+          type: test
+          params:
+            shell: "bash"
+            working_dir: src
+            script: |
+              ${PREPARE_SHELL}
+              set -x
+              export CONFIG=$PROJECT_DIRECTORY/.github/reviewers.txt
+              export SCRIPT="$DRIVERS_TOOLS/.evergreen/github_app/assign-reviewer.sh"
+              bash $SCRIPT -p $CONFIG -h ${github_commit} -o "mongodb" -n "mongo-python-driver"
+              echo '{"results": [{ "status": "PASS", "test_file": "Build", "log_raw": "Test completed"  } ]}' > ${PROJECT_DIRECTORY}/test-results.json
+
 axes:
   # Choice of distro
   - id: platform
@@ -3019,6 +3035,12 @@ buildvariants:
   tasks:
     - name: test_aws_lambda_task_group
 
+- name: rhel8-pr-assign-reviewer
+  display_name: Assign PR Reviewer
+  run_on: rhel87-small
+  tasks:
+    - name: "assign-pr-reviewer"
+
 - name: Release
   display_name: Release
   batchtime: 20160 # 14 days

.github/CODEOWNERS

@@ -1,2 +0,0 @@
-# Global owner for repo
-* @mongodb/dbx-python

.github/reviewers.txt

@@ -0,0 +1,5 @@
+# List of reviewers for auto-assignment of reviews.
+caseyclements
+blink1073
+Jibola
+NoahStapp