Add reusable dry-run execution controls

python-tools/app/web.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import ipaddress
+import json
 from datetime import datetime
 from pathlib import Path
 
@@ -135,13 +136,53 @@ def create_app(settings: Settings | None = None) -> Flask:
         run = store.get(run_id)
         if run is None:
             abort(404)
+        execution_task = execution_replay_task(run)
         return render_template(
             "run.html",
             run=run,
             children=store.children(run.id),
             output=read_run_output(run),
+            execution_task=execution_task,
         )
 
+    def execution_replay_task(run):
+        if run.status != "succeeded" or run.target_kind != "task":
+            return None
+        task = catalog.task(run.target_path)
+        if task is None or task.execution is None:
+            return None
+        if any(field.type == "file" or field.sensitive for field in task.inputs):
+            return None
+        try:
+            input_data = json.loads(run.input_json)
+        except json.JSONDecodeError:
+            return None
+        if not isinstance(input_data, dict):
+            return None
+        if input_data.get(task.execution.field.name) != task.execution.dry_run_value:
+            return None
+        return task
+
+    @app.post("/runs/<int:run_id>/execute")
+    def execute_dry_run(run_id: int):
+        run = store.get(run_id)
+        if run is None:
+            abort(404)
+        task = execution_replay_task(run)
+        if task is None:
+            abort(404)
+        input_data = json.loads(run.input_json)
+        input_data[task.execution.field.name] = task.execution.execute_value
+        raw_values = {
+            name: [str(value) for value in value] if isinstance(value, list) else [str(value)]
+            for name, value in input_data.items()
+        }
+        validated, errors = validate_inputs(task.inputs, raw_values)
+        if errors:
+            abort(409)
+        executed, _ = manager.run_task(task, validated)
+        return redirect(url_for("run_detail", run_id=executed.id))
+
     @app.post("/runs/<int:run_id>/cancel")
     def cancel_run(run_id: int):
         run = manager.request_cancel(run_id)