matcher: add Initialized method

This exposes an underlying change in the claircore packages.

Signed-off-by: Hank Donnay <hdonnay@redhat.com>

httptransport/client/matcher.go

@@ -236,3 +236,9 @@ func (c *HTTP) UpdateDiff(ctx context.Context, prev, cur uuid.UUID) (*driver.Upd
 	}
 	return &d, nil
 }
+
+// Initialized is present to fulfill the interface, but isn't exposed as part of
+// the HTTP API. This method is stubbed out.
+func (c *HTTP) Initialized(_ context.Context) (bool, error) {
+	return true, nil
+}

matcher/mock.go

@@ -22,6 +22,7 @@ type Mock struct {
 	LatestUpdateOperations_ func(context.Context) (map[string][]driver.UpdateOperation, error)
 	UpdateDiff_             func(context.Context, uuid.UUID, uuid.UUID) (*driver.UpdateDiff, error)
 	Scan_                   func(context.Context, *claircore.IndexReport) (*claircore.VulnerabilityReport, error)
+	Initialized_            func(context.Context) (bool, error)
 	// TestUOs provide memory for the mock.
 	// usage of this field can be dictated by the test case's needs.
 	sync.Mutex
@@ -77,3 +78,10 @@ func (d *Mock) Scan(ctx context.Context, ir *claircore.IndexReport) (*claircore.
 	}
 	return d.Scan_(ctx, ir)
 }
+
+func (d *Mock) Initialized(ctx context.Context) (bool, error) {
+	if d.Initialized_ == nil {
+		panic("mock matcher: unexpected call to Initialized")
+	}
+	return d.Initialized_(ctx)
+}

matcher/service.go

@@ -19,6 +19,7 @@ type Service interface {
 
 // Scanner is an interface providing a claircore.VulnerabilityReport given a claircore.IndexReport
 type Scanner interface {
+	Initialized(context.Context) (bool, error)
 	Scan(ctx context.Context, ir *claircore.IndexReport) (*claircore.VulnerabilityReport, error)
 }