func testInsertLayerDelete(t *testing.T, datastore database.Datastore) {
err := datastore.DeleteLayer("TestInsertLayerX")
assert.Equal(t, cerrors.ErrNotFound, err)
err = datastore.DeleteLayer("TestInsertLayer3")
assert.Nil(t, err)
_, err = datastore.FindLayer("TestInsertLayer3", false, false)
assert.Equal(t, cerrors.ErrNotFound, err)
_, err = datastore.FindLayer("TestInsertLayer4a", false, false)
assert.Equal(t, cerrors.ErrNotFound, err)
_, err = datastore.FindLayer("TestInsertLayer4b", true, false)
assert.Equal(t, cerrors.ErrNotFound, err)
}
// Process detects the Namespace of a layer, the features it adds/removes, and
// then stores everything in the database.
// TODO(Quentin-M): We could have a goroutine that looks for layers that have been analyzed with an
// older engine version and that processes them.
func Process(datastore database.Datastore, imageFormat, name, parentName, path string, headers map[string]string) error {
// Verify parameters.
if name == "" {
return cerrors.NewBadRequestError("could not process a layer which does not have a name")
}
if path == "" {
return cerrors.NewBadRequestError("could not process a layer which does not have a path")
}
if imageFormat == "" {
return cerrors.NewBadRequestError("could not process a layer which does not have a format")
}
log.Debugf("layer %s: processing (Location: %s, Engine version: %d, Parent: %s, Format: %s)",
name, utils.CleanURL(path), Version, parentName, imageFormat)
// Check to see if the layer is already in the database.
layer, err := datastore.FindLayer(name, false, false)
if err != nil && err != cerrors.ErrNotFound {
return err
}
if err == cerrors.ErrNotFound {
// New layer case.
layer = database.Layer{Name: name, EngineVersion: Version}
// Retrieve the parent if it has one.
// We need to get it with its Features in order to diff them.
if parentName != "" {
parent, err := datastore.FindLayer(parentName, true, false)
if err != nil && err != cerrors.ErrNotFound {
return err
}
if err == cerrors.ErrNotFound {
log.Warningf("layer %s: the parent layer (%s) is unknown. it must be processed first", name,
parentName)
return ErrParentUnknown
}
layer.Parent = &parent
}
} else {
// The layer is already in the database, check if we need to update it.
if layer.EngineVersion >= Version {
log.Debugf(`layer %s: layer content has already been processed in the past with engine %d.
Current engine is %d. skipping analysis`, name, layer.EngineVersion, Version)
return nil
}
log.Debugf(`layer %s: layer content has been analyzed in the past with engine %d. Current
engine is %d. analyzing again`, name, layer.EngineVersion, Version)
}
// Analyze the content.
layer.Namespace, layer.Features, err = detectContent(imageFormat, name, path, headers, layer.Parent)
if err != nil {
return err
}
return datastore.InsertLayer(layer)
}
func testInsertLayerUpdate(t *testing.T, datastore database.Datastore) {
f7 := database.FeatureVersion{
Feature: database.Feature{
Namespace: database.Namespace{Name: "TestInsertLayerNamespace3"},
Name: "TestInsertLayerFeature7",
},
Version: types.NewVersionUnsafe("0.01"),
}
l3, _ := datastore.FindLayer("TestInsertLayer3", true, false)
l3u := database.Layer{
Name: l3.Name,
Parent: l3.Parent,
Namespace: &database.Namespace{Name: "TestInsertLayerNamespaceUpdated1"},
Features: []database.FeatureVersion{f7},
}
l4u := database.Layer{
Name: "TestInsertLayer4",
Parent: &database.Layer{Name: "TestInsertLayer3"},
Features: []database.FeatureVersion{f7},
EngineVersion: 2,
}
// Try to re-insert without increasing the EngineVersion.
err := datastore.InsertLayer(l3u)
assert.Nil(t, err)
l3uf, err := datastore.FindLayer(l3u.Name, true, false)
if assert.Nil(t, err) {
assert.Equal(t, l3.Namespace.Name, l3uf.Namespace.Name)
assert.Equal(t, l3.EngineVersion, l3uf.EngineVersion)
assert.Len(t, l3uf.Features, len(l3.Features))
}
// Update layer l3.
// Verify that the Namespace, EngineVersion and FeatureVersions got updated.
l3u.EngineVersion = 2
err = datastore.InsertLayer(l3u)
assert.Nil(t, err)
l3uf, err = datastore.FindLayer(l3u.Name, true, false)
if assert.Nil(t, err) {
assert.Equal(t, l3u.Namespace.Name, l3uf.Namespace.Name)
assert.Equal(t, l3u.EngineVersion, l3uf.EngineVersion)
if assert.Len(t, l3uf.Features, 1) {
assert.True(t, cmpFV(l3uf.Features[0], f7), "Updated layer should have %#v but actually have %#v", f7, l3uf.Features[0])
}
}
// Update layer l4.
// Verify that the Namespace got updated from its new Parent's, and also verify the
// EnginVersion and FeatureVersions.
l4u.Parent = &l3uf
err = datastore.InsertLayer(l4u)
assert.Nil(t, err)
l4uf, err := datastore.FindLayer(l3u.Name, true, false)
if assert.Nil(t, err) {
assert.Equal(t, l3u.Namespace.Name, l4uf.Namespace.Name)
assert.Equal(t, l4u.EngineVersion, l4uf.EngineVersion)
if assert.Len(t, l4uf.Features, 1) {
assert.True(t, cmpFV(l3uf.Features[0], f7), "Updated layer should have %#v but actually have %#v", f7, l4uf.Features[0])
}
}
}
func testInsertLayerTree(t *testing.T, datastore database.Datastore) {
f1 := database.FeatureVersion{
Feature: database.Feature{
Namespace: database.Namespace{Name: "TestInsertLayerNamespace2"},
Name: "TestInsertLayerFeature1",
},
Version: types.NewVersionUnsafe("1.0"),
}
f2 := database.FeatureVersion{
Feature: database.Feature{
Namespace: database.Namespace{Name: "TestInsertLayerNamespace2"},
Name: "TestInsertLayerFeature2",
},
Version: types.NewVersionUnsafe("0.34"),
}
f3 := database.FeatureVersion{
Feature: database.Feature{
Namespace: database.Namespace{Name: "TestInsertLayerNamespace2"},
Name: "TestInsertLayerFeature3",
},
Version: types.NewVersionUnsafe("0.56"),
}
f4 := database.FeatureVersion{
Feature: database.Feature{
Namespace: database.Namespace{Name: "TestInsertLayerNamespace3"},
Name: "TestInsertLayerFeature2",
},
Version: types.NewVersionUnsafe("0.34"),
}
f5 := database.FeatureVersion{
Feature: database.Feature{
Namespace: database.Namespace{Name: "TestInsertLayerNamespace3"},
Name: "TestInsertLayerFeature3",
},
Version: types.NewVersionUnsafe("0.56"),
}
f6 := database.FeatureVersion{
Feature: database.Feature{
Namespace: database.Namespace{Name: "TestInsertLayerNamespace3"},
Name: "TestInsertLayerFeature4",
},
Version: types.NewVersionUnsafe("0.666"),
}
layers := []database.Layer{
{
Name: "TestInsertLayer1",
},
{
Name: "TestInsertLayer2",
Parent: &database.Layer{Name: "TestInsertLayer1"},
Namespace: &database.Namespace{Name: "TestInsertLayerNamespace1"},
},
// This layer changes the namespace and adds Features.
{
Name: "TestInsertLayer3",
Parent: &database.Layer{Name: "TestInsertLayer2"},
Namespace: &database.Namespace{Name: "TestInsertLayerNamespace2"},
Features: []database.FeatureVersion{f1, f2, f3},
},
// This layer covers the case where the last layer doesn't provide any new Feature.
{
Name: "TestInsertLayer4a",
Parent: &database.Layer{Name: "TestInsertLayer3"},
Features: []database.FeatureVersion{f1, f2, f3},
},
// This layer covers the case where the last layer provides Features.
// It also modifies the Namespace ("upgrade") but keeps some Features not upgraded, their
// Namespaces should then remain unchanged.
{
Name: "TestInsertLayer4b",
Parent: &database.Layer{Name: "TestInsertLayer3"},
Namespace: &database.Namespace{Name: "TestInsertLayerNamespace3"},
Features: []database.FeatureVersion{
// Deletes TestInsertLayerFeature1.
// Keep TestInsertLayerFeature2 (old Namespace should be kept):
f4,
// Upgrades TestInsertLayerFeature3 (with new Namespace):
f5,
// Adds TestInsertLayerFeature4:
f6,
},
},
}
var err error
retrievedLayers := make(map[string]database.Layer)
for _, layer := range layers {
if layer.Parent != nil {
// Retrieve from database its parent and assign.
parent := retrievedLayers[layer.Parent.Name]
layer.Parent = &parent
}
err = datastore.InsertLayer(layer)
assert.Nil(t, err)
retrievedLayers[layer.Name], err = datastore.FindLayer(layer.Name, true, false)
assert.Nil(t, err)
}
l4a := retrievedLayers["TestInsertLayer4a"]
if assert.NotNil(t, l4a.Namespace) {
assert.Equal(t, "TestInsertLayerNamespace2", l4a.Namespace.Name)
}
assert.Len(t, l4a.Features, 3)
for _, featureVersion := range l4a.Features {
if cmpFV(featureVersion, f1) && cmpFV(featureVersion, f2) && cmpFV(featureVersion, f3) {
assert.Error(t, fmt.Errorf("TestInsertLayer4a contains an unexpected package: %#v. Should contain %#v and %#v and %#v.", featureVersion, f1, f2, f3))
}
}
l4b := retrievedLayers["TestInsertLayer4b"]
if assert.NotNil(t, l4b.Namespace) {
assert.Equal(t, "TestInsertLayerNamespace3", l4b.Namespace.Name)
}
assert.Len(t, l4b.Features, 3)
for _, featureVersion := range l4b.Features {
if cmpFV(featureVersion, f2) && cmpFV(featureVersion, f5) && cmpFV(featureVersion, f6) {
assert.Error(t, fmt.Errorf("TestInsertLayer4a contains an unexpected package: %#v. Should contain %#v and %#v and %#v.", featureVersion, f2, f4, f6))
}
}
}