Implemented foundation of task-flow-engine

flows/contribution.yaml

@@ -0,0 +1,71 @@
+id: custodian.contribution.v1
+entity_type: contribution
+workstations:
+  - name: draft
+    description: Local draft, not yet submitted.
+    entry_assertions: []
+    exit_assertions: []
+  - name: submitted
+    description: Submitted for acknowledgement.
+    entry_assertions:
+      - id: contribution.from_draft
+        target: previous_workstation
+        op: any_eq
+        value:
+          - draft
+        description: Submitted contributions originate from draft.
+    exit_assertions: []
+  - name: acknowledged
+    description: Submission has been acknowledged.
+    entry_assertions:
+      - id: contribution.from_submitted
+        target: previous_workstation
+        op: any_eq
+        value:
+          - submitted
+        description: Acknowledgement follows submission.
+    exit_assertions: []
+  - name: accepted
+    description: Contribution has been accepted for merge.
+    entry_assertions:
+      - id: contribution.from_acknowledged
+        target: previous_workstation
+        op: any_eq
+        value:
+          - acknowledged
+        description: Acceptance follows acknowledgement.
+    exit_assertions: []
+  - name: merged
+    description: Contribution has been merged.
+    entry_assertions:
+      - id: contribution.from_accepted
+        target: previous_workstation
+        op: any_eq
+        value:
+          - accepted
+        description: Merge follows acceptance.
+    exit_assertions: []
+  - name: rejected
+    description: Contribution was rejected.
+    entry_assertions:
+      - id: contribution.rejectable_source
+        target: previous_workstation
+        op: any_eq
+        value:
+          - submitted
+          - acknowledged
+        description: Only submitted or acknowledged contributions can be rejected.
+    exit_assertions: []
+  - name: withdrawn
+    description: Contribution was withdrawn by its owner.
+    entry_assertions:
+      - id: contribution.withdrawable_source
+        target: previous_workstation
+        op: any_eq
+        value:
+          - draft
+          - submitted
+          - acknowledged
+          - accepted
+        description: Draft through accepted contributions can be withdrawn.
+    exit_assertions: []