Add glide.yaml and vendor deps

vendor/github.com/containers/image/transports/transports.go

@@ -0,0 +1,59 @@
+package transports
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/containers/image/directory"
+	"github.com/containers/image/docker"
+	"github.com/containers/image/docker/daemon"
+	ociLayout "github.com/containers/image/oci/layout"
+	"github.com/containers/image/openshift"
+	"github.com/containers/image/types"
+)
+
+// KnownTransports is a registry of known ImageTransport instances.
+var KnownTransports map[string]types.ImageTransport
+
+func init() {
+	KnownTransports = make(map[string]types.ImageTransport)
+	// NOTE: Make sure docs/policy.json.md is updated when adding or updating
+	// a transport.
+	for _, t := range []types.ImageTransport{
+		directory.Transport,
+		docker.Transport,
+		daemon.Transport,
+		ociLayout.Transport,
+		openshift.Transport,
+	} {
+		name := t.Name()
+		if _, ok := KnownTransports[name]; ok {
+			panic(fmt.Sprintf("Duplicate image transport name %s", name))
+		}
+		KnownTransports[name] = t
+	}
+}
+
+// ParseImageName converts a URL-like image name to a types.ImageReference.
+func ParseImageName(imgName string) (types.ImageReference, error) {
+	parts := strings.SplitN(imgName, ":", 2)
+	if len(parts) != 2 {
+		return nil, fmt.Errorf(`Invalid image name "%s", expected colon-separated transport:reference`, imgName)
+	}
+	transport, ok := KnownTransports[parts[0]]
+	if !ok {
+		return nil, fmt.Errorf(`Invalid image name "%s", unknown transport "%s"`, imgName, parts[0])
+	}
+	return transport.ParseReference(parts[1])
+}
+
+// ImageName converts a types.ImageReference into an URL-like image name, which MUST be such that
+// ParseImageName(ImageName(reference)) returns an equivalent reference.
+//
+// This is the generally recommended way to refer to images in the UI.
+//
+// NOTE: The returned string is not promised to be equal to the original input to ParseImageName;
+// e.g. default attribute values omitted by the user may be filled in in the return value, or vice versa.
+func ImageName(ref types.ImageReference) string {
+	return ref.Transport().Name() + ":" + ref.StringWithinTransport()
+}

vendor/github.com/containers/image/transports/transports_test.go

@@ -0,0 +1,45 @@
+package transports
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestKnownTransports(t *testing.T) {
+	assert.NotNil(t, KnownTransports) // Ensure that the initialization has actually been run
+	assert.True(t, len(KnownTransports) > 1)
+}
+
+func TestParseImageName(t *testing.T) {
+	// This primarily tests error handling, TestImageNameHandling is a table-driven
+	// test for the expected values.
+	for _, name := range []string{
+		"",         // Empty
+		"busybox",  // No transport name
+		":busybox", // Empty transport name
+		"docker:",  // Empty transport reference
+	} {
+		_, err := ParseImageName(name)
+		assert.Error(t, err, name)
+	}
+}
+
+// A table-driven test summarizing the various transports' behavior.
+func TestImageNameHandling(t *testing.T) {
+	for _, c := range []struct{ transport, input, roundtrip string }{
+		{"dir", "/etc", "/etc"},
+		{"docker", "//busybox", "//busybox:latest"},
+		{"docker", "//busybox:notlatest", "//busybox:notlatest"}, // This also tests handling of multiple ":" characters
+		{"docker-daemon", "FIXME FIXME", "FIXME FIXME"},
+		{"oci", "/etc:sometag", "/etc:sometag"},
+		// "atomic" not tested here because it depends on per-user configuration for the default cluster.
+	} {
+		fullInput := c.transport + ":" + c.input
+		ref, err := ParseImageName(fullInput)
+		require.NoError(t, err, fullInput)
+		s := ImageName(ref)
+		assert.Equal(t, c.transport+":"+c.roundtrip, s, fullInput)
+	}
+}