build: add configuration for github bot (angular#11849)

.github/angular-robot.yml

@@ -0,0 +1,90 @@
+# Configuration for angular-robot
+
+# options for the merge plugin
+merge:
+  # the status will be added to your pull requests
+  status:
+    # set to true to disable
+    disabled: false
+    # the name of the status
+    context: "ci/angular: merge status"
+    # text to show when all checks pass
+    successText: "All checks passed!"
+    # text to show when some checks are failing
+    failureText: "The following checks are failing:"
+
+  # comment that will be added to a PR when there is a conflict, leave empty or set to false to disable
+  mergeConflictComment: "Hi @{{PRAuthor}}! This PR has merge conflicts due to recent upstream merges.
+\nPlease help to unblock it by resolving these conflicts. Thanks!"
+
+  # label to monitor
+  mergeLabel: "PR action: merge"
+
+  # list of checks that will determine if the merge label can be added
+  checks:
+    # whether the PR shouldn't have a conflict with the base branch
+    noConflict: true
+    # whether the PR should have all reviews completed.
+    requireReviews: true
+    # list of labels that a PR needs to have, checked with a regexp (e.g. "PR target:" will work for the label "PR target: master")
+    requiredLabels:
+      - "PR target: *"
+      - "cla: yes"
+
+    # list of labels that a PR shouldn't have, checked after the required labels with a regexp
+    forbiddenLabels:
+      - "PR target: TBD"
+      - "PR action: cleanup"
+      - "PR action: review"
+      - "PR state: blocked"
+      - "cla: no"
+
+    # list of PR statuses that need to be successful
+    requiredStatuses:
+      - "continuous-integration/appveyor/pr"
+      - "ci/circleci: build"
+      - "ci/circleci: build-bazel"
+      - "ci/circleci: install"
+      - "ci/circleci: lint"
+      - "ci/circleci: validate"
+      - "ci/circleci: test"
+      - "ci/circleci: test-large"
+
+  # the comment that will be added when the merge label is added despite failing checks, leave empty or set to false to disable
+  # {{MERGE_LABEL}} will be replaced by the value of the mergeLabel option
+  # {{PLACEHOLDER}} will be replaced by the list of failing checks
+  mergeRemovedComment: "I see that you just added the `{{MERGE_LABEL}}` label, but the following checks are still failing:
+\n{{PLACEHOLDER}}
+\n
+\n**If you want your PR to be merged, it has to pass all the CI checks.**
+\n
+\nIf you can't get the PR to a green state due to flakes or broken master, please try rebasing to master and/or restarting the CI job. If that fails and you believe that the issue is not due to your change, please contact the caretaker and ask for help."
+
+# options for the triage plugin
+triage:
+  # set to true to disable
+  disabled: false
+  # number of the milestone to apply when the issue has not been triaged yet
+  needsTriageMilestone: 11,
+  # number of the milestone to apply when the issue is triaged
+  defaultMilestone: 12,
+  # arrays of labels that determine if an issue has been triaged by the caretaker
+  l1TriageLabels:
+    -
+      - "comp: *"
+  # arrays of labels that determine if an issue has been fully triaged
+  l2TriageLabels:
+    -
+      - "type: bug/fix"
+      - "severity*"
+      - "freq*"
+      - "comp: *"
+    -
+      - "type: feature"
+      - "comp: *"
+    -
+      - "type: refactor"
+      - "comp: *"
+    -
+      - "type: RFC / Discussion / question"
+      - "comp: *"