X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=vendor%2Fgithub.com%2Fhashicorp%2Fterraform%2Fterraform%2Fnode_resource_refresh.go;h=cd4fe9201ae4929a4863d028f1b9ef4035e8791b;hb=c680a8e1622ed0f18751d9d167c836ee24f5e897;hp=3a44926cef76d51c8d32795403b2539996ffdd65;hpb=bae9f6d2fd5eb5bc80929bd393932b23f14d7c93;p=github%2Ffretlink%2Fterraform-provider-statuscake.git

diff --git a/vendor/github.com/hashicorp/terraform/terraform/node_resource_refresh.go b/vendor/github.com/hashicorp/terraform/terraform/node_resource_refresh.go
index 3a44926..cd4fe92 100644
--- a/vendor/github.com/hashicorp/terraform/terraform/node_resource_refresh.go
+++ b/vendor/github.com/hashicorp/terraform/terraform/node_resource_refresh.go
@@ -4,24 +4,98 @@ import (
 	"fmt"
 
 	"github.com/hashicorp/terraform/config"
+	"github.com/hashicorp/terraform/dag"
 )
 
-// NodeRefreshableResource represents a resource that is "applyable":
+// NodeRefreshableManagedResource represents a resource that is expanabled into
+// NodeRefreshableManagedResourceInstance. Resource count orphans are also added.
+type NodeRefreshableManagedResource struct {
+	*NodeAbstractCountResource
+}
+
+// GraphNodeDynamicExpandable
+func (n *NodeRefreshableManagedResource) DynamicExpand(ctx EvalContext) (*Graph, error) {
+	// Grab the state which we read
+	state, lock := ctx.State()
+	lock.RLock()
+	defer lock.RUnlock()
+
+	// Expand the resource count which must be available by now from EvalTree
+	count, err := n.Config.Count()
+	if err != nil {
+		return nil, err
+	}
+
+	// The concrete resource factory we'll use
+	concreteResource := func(a *NodeAbstractResource) dag.Vertex {
+		// Add the config and state since we don't do that via transforms
+		a.Config = n.Config
+
+		return &NodeRefreshableManagedResourceInstance{
+			NodeAbstractResource: a,
+		}
+	}
+
+	// Start creating the steps
+	steps := []GraphTransformer{
+		// Expand the count.
+		&ResourceCountTransformer{
+			Concrete: concreteResource,
+			Count:    count,
+			Addr:     n.ResourceAddr(),
+		},
+
+		// Add the count orphans to make sure these resources are accounted for
+		// during a scale in.
+		&OrphanResourceCountTransformer{
+			Concrete: concreteResource,
+			Count:    count,
+			Addr:     n.ResourceAddr(),
+			State:    state,
+		},
+
+		// Attach the state
+		&AttachStateTransformer{State: state},
+
+		// Targeting
+		&TargetsTransformer{ParsedTargets: n.Targets},
+
+		// Connect references so ordering is correct
+		&ReferenceTransformer{},
+
+		// Make sure there is a single root
+		&RootTransformer{},
+	}
+
+	// Build the graph
+	b := &BasicGraphBuilder{
+		Steps:    steps,
+		Validate: true,
+		Name:     "NodeRefreshableManagedResource",
+	}
+
+	return b.Build(ctx.Path())
+}
+
+// NodeRefreshableManagedResourceInstance represents a resource that is "applyable":
 // it is ready to be applied and is represented by a diff.
-type NodeRefreshableResource struct {
+type NodeRefreshableManagedResourceInstance struct {
 	*NodeAbstractResource
 }
 
 // GraphNodeDestroyer
-func (n *NodeRefreshableResource) DestroyAddr() *ResourceAddress {
+func (n *NodeRefreshableManagedResourceInstance) DestroyAddr() *ResourceAddress {
 	return n.Addr
 }
 
 // GraphNodeEvalable
-func (n *NodeRefreshableResource) EvalTree() EvalNode {
+func (n *NodeRefreshableManagedResourceInstance) EvalTree() EvalNode {
 	// Eval info is different depending on what kind of resource this is
 	switch mode := n.Addr.Mode; mode {
 	case config.ManagedResourceMode:
+		if n.ResourceState == nil {
+			return n.evalTreeManagedResourceNoState()
+		}
 		return n.evalTreeManagedResource()
 
 	case config.DataResourceMode:
@@ -44,7 +118,7 @@ func (n *NodeRefreshableResource) EvalTree() EvalNode {
 	}
 }
 
-func (n *NodeRefreshableResource) evalTreeManagedResource() EvalNode {
+func (n *NodeRefreshableManagedResourceInstance) evalTreeManagedResource() EvalNode {
 	addr := n.NodeAbstractResource.Addr
 
 	// stateId is the ID to put into the state
@@ -98,3 +172,88 @@ func (n *NodeRefreshableResource) evalTreeManagedResource() EvalNode {
 		},
 	}
 }
+
+// evalTreeManagedResourceNoState produces an EvalSequence for refresh resource
+// nodes that don't have state attached. An example of where this functionality
+// is useful is when a resource that already exists in state is being scaled
+// out, ie: has its resource count increased. In this case, the scaled out node
+// needs to be available to other nodes (namely data sources) that may depend
+// on it for proper interpolation, or confusing "index out of range" errors can
+// occur.
+//
+// The steps in this sequence are very similar to the steps carried out in
+// plan, but nothing is done with the diff after it is created - it is dropped,
+// and its changes are not counted in the UI.
+func (n *NodeRefreshableManagedResourceInstance) evalTreeManagedResourceNoState() EvalNode {
+	// Declare a bunch of variables that are used for state during
+	// evaluation. Most of this are written to by-address below.
+	var provider ResourceProvider
+	var state *InstanceState
+	var resourceConfig *ResourceConfig
+
+	addr := n.NodeAbstractResource.Addr
+	stateID := addr.stateId()
+	info := &InstanceInfo{
+		Id:         stateID,
+		Type:       addr.Type,
+		ModulePath: normalizeModulePath(addr.Path),
+	}
+
+	// Build the resource for eval
+	resource := &Resource{
+		Name:       addr.Name,
+		Type:       addr.Type,
+		CountIndex: addr.Index,
+	}
+	if resource.CountIndex < 0 {
+		resource.CountIndex = 0
+	}
+
+	// Determine the dependencies for the state.
+	stateDeps := n.StateReferences()
+
+	return &EvalSequence{
+		Nodes: []EvalNode{
+			&EvalInterpolate{
+				Config:   n.Config.RawConfig.Copy(),
+				Resource: resource,
+				Output:   &resourceConfig,
+			},
+			&EvalGetProvider{
+				Name:   n.ProvidedBy()[0],
+				Output: &provider,
+			},
+			// Re-run validation to catch any errors we missed, e.g. type
+			// mismatches on computed values.
+			&EvalValidateResource{
+				Provider:       &provider,
+				Config:         &resourceConfig,
+				ResourceName:   n.Config.Name,
+				ResourceType:   n.Config.Type,
+				ResourceMode:   n.Config.Mode,
+				IgnoreWarnings: true,
+			},
+			&EvalReadState{
+				Name:   stateID,
+				Output: &state,
+			},
+			&EvalDiff{
+				Name:        stateID,
+				Info:        info,
+				Config:      &resourceConfig,
+				Resource:    n.Config,
+				Provider:    &provider,
+				State:       &state,
+				OutputState: &state,
+				Stub:        true,
+			},
+			&EvalWriteState{
+				Name:         stateID,
+				ResourceType: n.Config.Type,
+				Provider:     n.Config.Provider,
+				Dependencies: stateDeps,
+				State:        &state,
+			},
+		},
+	}
+}