backend/remote: display cost estimate and policy check whenever available

Author: ryanuber

backend/remote/backend_common.go

@@ -269,6 +269,14 @@ func (b *Remote) costEstimate(stopCtx, cancelCtx context.Context, op *backend.Op
 			return generalError("Failed to retrieve cost estimate", err)
 		}
 
+		// If the run is canceled or errored, but the cost-estimate still has
+		// no result, there is nothing further to render.
+		if ce.Status != tfe.CostEstimateFinished {
+			if r.Status == tfe.RunCanceled || r.Status == tfe.RunErrored {
+				return nil
+			}
+		}
+
 		switch ce.Status {
 		case tfe.CostEstimateFinished:
 			delta, err := strconv.ParseFloat(ce.DeltaMonthlyCost, 64)
@@ -324,18 +332,27 @@ func (b *Remote) checkPolicy(stopCtx, cancelCtx context.Context, op *backend.Ope
 		b.CLI.Output("\n------------------------------------------------------------------------\n")
 	}
 	for i, pc := range r.PolicyChecks {
-		logs, err := b.client.PolicyChecks.Logs(stopCtx, pc.ID)
-		if err != nil {
-			return generalError("Failed to retrieve policy check logs", err)
-		}
-		reader := bufio.NewReaderSize(logs, 64*1024)
-
 		// Retrieve the policy check to get its current status.
 		pc, err := b.client.PolicyChecks.Read(stopCtx, pc.ID)
 		if err != nil {
 			return generalError("Failed to retrieve policy check", err)
 		}
 
+		// If the run is canceled or errored, but the policy check still has
+		// no result, there is nothing further to render.
+		if r.Status == tfe.RunCanceled || r.Status == tfe.RunErrored {
+			switch pc.Status {
+			case tfe.PolicyPending, tfe.PolicyQueued, tfe.PolicyUnreachable:
+				continue
+			}
+		}
+
+		logs, err := b.client.PolicyChecks.Logs(stopCtx, pc.ID)
+		if err != nil {
+			return generalError("Failed to retrieve policy check logs", err)
+		}
+		reader := bufio.NewReaderSize(logs, 64*1024)
+
 		var msgPrefix string
 		switch pc.Scope {
 		case tfe.PolicyScopeOrganization:

backend/remote/backend_plan.go

@@ -308,12 +308,11 @@ in order to capture the filesystem context the remote workspace expects:
 		return r, generalError("Failed to retrieve run", err)
 	}
 
-	// Return if the run is canceled or errored. We return without
-	// an error, even if the run errored, as the error is already
-	// displayed by the output of the remote run.
-	if r.Status == tfe.RunCanceled || r.Status == tfe.RunErrored {
-		return r, nil
-	}
+	// If the run is canceled or errored, we still continue to the
+	// cost-estimation and policy check phases to ensure we render any
+	// results available. In the case of a hard-failed policy check, the
+	// status of the run will be "errored", but there is still policy
+	// information which should be shown.
 
 	// Show any cost estimation output.
 	if r.CostEstimate != nil {