1 files changed, 486 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/terraform/configs/resource.go b/vendor/github.com/hashicorp/terraform/configs/resource.go
new file mode 100644
index 0000000..de1a343
--- /dev/null
+++ b/vendor/github.com/hashicorp/terraform/configs/resource.go
@@ -0,0 +1,486 @@
+package configs
+
+import (
+        "fmt"
+
+        "github.com/hashicorp/hcl2/gohcl"
+        "github.com/hashicorp/hcl2/hcl"
+        "github.com/hashicorp/hcl2/hcl/hclsyntax"
+
+        "github.com/hashicorp/terraform/addrs"
+)
+
+// Resource represents a "resource" or "data" block in a module or file.
+type Resource struct {
+        Mode    addrs.ResourceMode
+        Name    string
+        Type    string
+        Config  hcl.Body
+        Count   hcl.Expression
+        ForEach hcl.Expression
+
+        ProviderConfigRef *ProviderConfigRef
+
+        DependsOn []hcl.Traversal
+
+        // Managed is populated only for Mode = addrs.ManagedResourceMode,
+        // containing the additional fields that apply to managed resources.
+        // For all other resource modes, this field is nil.
+        Managed *ManagedResource
+
+        DeclRange hcl.Range
+        TypeRange hcl.Range
+}
+
+// ManagedResource represents a "resource" block in a module or file.
+type ManagedResource struct {
+        Connection   *Connection
+        Provisioners []*Provisioner
+
+        CreateBeforeDestroy bool
+        PreventDestroy      bool
+        IgnoreChanges       []hcl.Traversal
+        IgnoreAllChanges    bool
+
+        CreateBeforeDestroySet bool
+        PreventDestroySet      bool
+}
+
+func (r *Resource) moduleUniqueKey() string {
+        return r.Addr().String()
+}
+
+// Addr returns a resource address for the receiver that is relative to the
+// resource's containing module.
+func (r *Resource) Addr() addrs.Resource {
+        return addrs.Resource{
+                Mode: r.Mode,
+                Type: r.Type,
+                Name: r.Name,
+        }
+}
+
+// ProviderConfigAddr returns the address for the provider configuration
+// that should be used for this resource. This function implements the
+// default behavior of extracting the type from the resource type name if
+// an explicit "provider" argument was not provided.
+func (r *Resource) ProviderConfigAddr() addrs.ProviderConfig {
+        if r.ProviderConfigRef == nil {
+                return r.Addr().DefaultProviderConfig()
+        }
+
+        return addrs.ProviderConfig{
+                Type:  r.ProviderConfigRef.Name,
+                Alias: r.ProviderConfigRef.Alias,
+        }
+}
+
+func decodeResourceBlock(block *hcl.Block) (*Resource, hcl.Diagnostics) {
+        r := &Resource{
+                Mode:      addrs.ManagedResourceMode,
+                Type:      block.Labels[0],
+                Name:      block.Labels[1],
+                DeclRange: block.DefRange,
+                TypeRange: block.LabelRanges[0],
+                Managed:   &ManagedResource{},
+        }
+
+        content, remain, diags := block.Body.PartialContent(resourceBlockSchema)
+        r.Config = remain
+
+        if !hclsyntax.ValidIdentifier(r.Type) {
+                diags = append(diags, &hcl.Diagnostic{
+                        Severity: hcl.DiagError,
+                        Summary:  "Invalid resource type name",
+                        Detail:   badIdentifierDetail,
+                        Subject:  &block.LabelRanges[0],
+                })
+        }
+        if !hclsyntax.ValidIdentifier(r.Name) {
+                diags = append(diags, &hcl.Diagnostic{
+                        Severity: hcl.DiagError,
+                        Summary:  "Invalid resource name",
+                        Detail:   badIdentifierDetail,
+                        Subject:  &block.LabelRanges[1],
+                })
+        }
+
+        if attr, exists := content.Attributes["count"]; exists {
+                r.Count = attr.Expr
+        }
+
+        if attr, exists := content.Attributes["for_each"]; exists {
+                r.ForEach = attr.Expr
+                // We currently parse this, but don't yet do anything with it.
+                diags = append(diags, &hcl.Diagnostic{
+                        Severity: hcl.DiagError,
+                        Summary:  "Reserved argument name in resource block",
+                        Detail:   fmt.Sprintf("The name %q is reserved for use in a future version of Terraform.", attr.Name),
+                        Subject:  &attr.NameRange,
+                })
+        }
+
+        if attr, exists := content.Attributes["provider"]; exists {
+                var providerDiags hcl.Diagnostics
+                r.ProviderConfigRef, providerDiags = decodeProviderConfigRef(attr.Expr, "provider")
+                diags = append(diags, providerDiags...)
+        }
+
+        if attr, exists := content.Attributes["depends_on"]; exists {
+                deps, depsDiags := decodeDependsOn(attr)
+                diags = append(diags, depsDiags...)
+                r.DependsOn = append(r.DependsOn, deps...)
+        }
+
+        var seenLifecycle *hcl.Block
+        var seenConnection *hcl.Block
+        for _, block := range content.Blocks {
+                switch block.Type {
+                case "lifecycle":
+                        if seenLifecycle != nil {
+                                diags = append(diags, &hcl.Diagnostic{
+                                        Severity: hcl.DiagError,
+                                        Summary:  "Duplicate lifecycle block",
+                                        Detail:   fmt.Sprintf("This resource already has a lifecycle block at %s.", seenLifecycle.DefRange),
+                                        Subject:  &block.DefRange,
+                                })
+                                continue
+                        }
+                        seenLifecycle = block
+
+                        lcContent, lcDiags := block.Body.Content(resourceLifecycleBlockSchema)
+                        diags = append(diags, lcDiags...)
+
+                        if attr, exists := lcContent.Attributes["create_before_destroy"]; exists {
+                                valDiags := gohcl.DecodeExpression(attr.Expr, nil, &r.Managed.CreateBeforeDestroy)
+                                diags = append(diags, valDiags...)
+                                r.Managed.CreateBeforeDestroySet = true
+                        }
+
+                        if attr, exists := lcContent.Attributes["prevent_destroy"]; exists {
+                                valDiags := gohcl.DecodeExpression(attr.Expr, nil, &r.Managed.PreventDestroy)
+                                diags = append(diags, valDiags...)
+                                r.Managed.PreventDestroySet = true
+                        }
+
+                        if attr, exists := lcContent.Attributes["ignore_changes"]; exists {
+
+                                // ignore_changes can either be a list of relative traversals
+                                // or it can be just the keyword "all" to ignore changes to this
+                                // resource entirely.
+                                //   ignore_changes = [ami, instance_type]
+                                //   ignore_changes = all
+                                // We also allow two legacy forms for compatibility with earlier
+                                // versions:
+                                //   ignore_changes = ["ami", "instance_type"]
+                                //   ignore_changes = ["*"]
+
+                                kw := hcl.ExprAsKeyword(attr.Expr)
+
+                                switch {
+                                case kw == "all":
+                                        r.Managed.IgnoreAllChanges = true
+                                default:
+                                        exprs, listDiags := hcl.ExprList(attr.Expr)
+                                        diags = append(diags, listDiags...)
+
+                                        var ignoreAllRange hcl.Range
+
+                                        for _, expr := range exprs {
+
+                                                // our expr might be the literal string "*", which
+                                                // we accept as a deprecated way of saying "all".
+                                                if shimIsIgnoreChangesStar(expr) {
+                                                        r.Managed.IgnoreAllChanges = true
+                                                        ignoreAllRange = expr.Range()
+                                                        diags = append(diags, &hcl.Diagnostic{
+                                                                Severity: hcl.DiagWarning,
+                                                                Summary:  "Deprecated ignore_changes wildcard",
+                                                                Detail:   "The [\"*\"] form of ignore_changes wildcard is deprecated. Use \"ignore_changes = all\" to ignore changes to all attributes.",
+                                                                Subject:  attr.Expr.Range().Ptr(),
+                                                        })
+                                                        continue
+                                                }
+
+                                                expr, shimDiags := shimTraversalInString(expr, false)
+                                                diags = append(diags, shimDiags...)
+
+                                                traversal, travDiags := hcl.RelTraversalForExpr(expr)
+                                                diags = append(diags, travDiags...)
+                                                if len(traversal) != 0 {
+                                                        r.Managed.IgnoreChanges = append(r.Managed.IgnoreChanges, traversal)
+                                                }
+                                        }
+
+                                        if r.Managed.IgnoreAllChanges && len(r.Managed.IgnoreChanges) != 0 {
+                                                diags = append(diags, &hcl.Diagnostic{
+                                                        Severity: hcl.DiagError,
+                                                        Summary:  "Invalid ignore_changes ruleset",
+                                                        Detail:   "Cannot mix wildcard string \"*\" with non-wildcard references.",
+                                                        Subject:  &ignoreAllRange,
+                                                        Context:  attr.Expr.Range().Ptr(),
+                                                })
+                                        }
+
+                                }
+
+                        }
+
+                case "connection":
+                        if seenConnection != nil {
+                                diags = append(diags, &hcl.Diagnostic{
+                                        Severity: hcl.DiagError,
+                                        Summary:  "Duplicate connection block",
+                                        Detail:   fmt.Sprintf("This resource already has a connection block at %s.", seenConnection.DefRange),
+                                        Subject:  &block.DefRange,
+                                })
+                                continue
+                        }
+                        seenConnection = block
+
+                        r.Managed.Connection = &Connection{
+                                Config:    block.Body,
+                                DeclRange: block.DefRange,
+                        }
+
+                case "provisioner":
+                        pv, pvDiags := decodeProvisionerBlock(block)
+                        diags = append(diags, pvDiags...)
+                        if pv != nil {
+                                r.Managed.Provisioners = append(r.Managed.Provisioners, pv)
+                        }
+
+                default:
+                        // Any other block types are ones we've reserved for future use,
+                        // so they get a generic message.
+                        diags = append(diags, &hcl.Diagnostic{
+                                Severity: hcl.DiagError,
+                                Summary:  "Reserved block type name in resource block",
+                                Detail:   fmt.Sprintf("The block type name %q is reserved for use by Terraform in a future version.", block.Type),
+                                Subject:  &block.TypeRange,
+                        })
+                }
+        }
+
+        return r, diags
+}
+
+func decodeDataBlock(block *hcl.Block) (*Resource, hcl.Diagnostics) {
+        r := &Resource{
+                Mode:      addrs.DataResourceMode,
+                Type:      block.Labels[0],
+                Name:      block.Labels[1],
+                DeclRange: block.DefRange,
+                TypeRange: block.LabelRanges[0],
+        }
+
+        content, remain, diags := block.Body.PartialContent(dataBlockSchema)
+        r.Config = remain
+
+        if !hclsyntax.ValidIdentifier(r.Type) {
+                diags = append(diags, &hcl.Diagnostic{
+                        Severity: hcl.DiagError,
+                        Summary:  "Invalid data source name",
+                        Detail:   badIdentifierDetail,
+                        Subject:  &block.LabelRanges[0],
+                })
+        }
+        if !hclsyntax.ValidIdentifier(r.Name) {
+                diags = append(diags, &hcl.Diagnostic{
+                        Severity: hcl.DiagError,
+                        Summary:  "Invalid data resource name",
+                        Detail:   badIdentifierDetail,
+                        Subject:  &block.LabelRanges[1],
+                })
+        }
+
+        if attr, exists := content.Attributes["count"]; exists {
+                r.Count = attr.Expr
+        }
+
+        if attr, exists := content.Attributes["for_each"]; exists {
+                r.ForEach = attr.Expr
+                // We currently parse this, but don't yet do anything with it.
+                diags = append(diags, &hcl.Diagnostic{
+                        Severity: hcl.DiagError,
+                        Summary:  "Reserved argument name in module block",
+                        Detail:   fmt.Sprintf("The name %q is reserved for use in a future version of Terraform.", attr.Name),
+                        Subject:  &attr.NameRange,
+                })
+        }
+
+        if attr, exists := content.Attributes["provider"]; exists {
+                var providerDiags hcl.Diagnostics
+                r.ProviderConfigRef, providerDiags = decodeProviderConfigRef(attr.Expr, "provider")
+                diags = append(diags, providerDiags...)
+        }
+
+        if attr, exists := content.Attributes["depends_on"]; exists {
+                deps, depsDiags := decodeDependsOn(attr)
+                diags = append(diags, depsDiags...)
+                r.DependsOn = append(r.DependsOn, deps...)
+        }
+
+        for _, block := range content.Blocks {
+                // All of the block types we accept are just reserved for future use, but some get a specialized error message.
+                switch block.Type {
+                case "lifecycle":
+                        diags = append(diags, &hcl.Diagnostic{
+                                Severity: hcl.DiagError,
+                                Summary:  "Unsupported lifecycle block",
+                                Detail:   "Data resources do not have lifecycle settings, so a lifecycle block is not allowed.",
+                                Subject:  &block.DefRange,
+                        })
+                default:
+                        diags = append(diags, &hcl.Diagnostic{
+                                Severity: hcl.DiagError,
+                                Summary:  "Reserved block type name in data block",
+                                Detail:   fmt.Sprintf("The block type name %q is reserved for use by Terraform in a future version.", block.Type),
+                                Subject:  &block.TypeRange,
+                        })
+                }
+        }
+
+        return r, diags
+}
+
+type ProviderConfigRef struct {
+        Name       string
+        NameRange  hcl.Range
+        Alias      string
+        AliasRange *hcl.Range // nil if alias not set
+}
+
+func decodeProviderConfigRef(expr hcl.Expression, argName string) (*ProviderConfigRef, hcl.Diagnostics) {
+        var diags hcl.Diagnostics
+
+        var shimDiags hcl.Diagnostics
+        expr, shimDiags = shimTraversalInString(expr, false)
+        diags = append(diags, shimDiags...)
+
+        traversal, travDiags := hcl.AbsTraversalForExpr(expr)
+
+        // AbsTraversalForExpr produces only generic errors, so we'll discard
+        // the errors given and produce our own with extra context. If we didn't
+        // get any errors then we might still have warnings, though.
+        if !travDiags.HasErrors() {
+                diags = append(diags, travDiags...)
+        }
+
+        if len(traversal) < 1 || len(traversal) > 2 {
+                // A provider reference was given as a string literal in the legacy
+                // configuration language and there are lots of examples out there
+                // showing that usage, so we'll sniff for that situation here and
+                // produce a specialized error message for it to help users find
+                // the new correct form.
+                if exprIsNativeQuotedString(expr) {
+                        diags = append(diags, &hcl.Diagnostic{
+                                Severity: hcl.DiagError,
+                                Summary:  "Invalid provider configuration reference",
+                                Detail:   "A provider configuration reference must not be given in quotes.",
+                                Subject:  expr.Range().Ptr(),
+                        })
+                        return nil, diags
+                }
+
+                diags = append(diags, &hcl.Diagnostic{
+                        Severity: hcl.DiagError,
+                        Summary:  "Invalid provider configuration reference",
+                        Detail:   fmt.Sprintf("The %s argument requires a provider type name, optionally followed by a period and then a configuration alias.", argName),
+                        Subject:  expr.Range().Ptr(),
+                })
+                return nil, diags
+        }
+
+        ret := &ProviderConfigRef{
+                Name:      traversal.RootName(),
+                NameRange: traversal[0].SourceRange(),
+        }
+
+        if len(traversal) > 1 {
+                aliasStep, ok := traversal[1].(hcl.TraverseAttr)
+                if !ok {
+                        diags = append(diags, &hcl.Diagnostic{
+                                Severity: hcl.DiagError,
+                                Summary:  "Invalid provider configuration reference",
+                                Detail:   "Provider name must either stand alone or be followed by a period and then a configuration alias.",
+                                Subject:  traversal[1].SourceRange().Ptr(),
+                        })
+                        return ret, diags
+                }
+
+                ret.Alias = aliasStep.Name
+                ret.AliasRange = aliasStep.SourceRange().Ptr()
+        }
+
+        return ret, diags
+}
+
+// Addr returns the provider config address corresponding to the receiving
+// config reference.
+//
+// This is a trivial conversion, essentially just discarding the source
+// location information and keeping just the addressing information.
+func (r *ProviderConfigRef) Addr() addrs.ProviderConfig {
+        return addrs.ProviderConfig{
+                Type:  r.Name,
+                Alias: r.Alias,
+        }
+}
+
+func (r *ProviderConfigRef) String() string {
+        if r == nil {
+                return "<nil>"
+        }
+        if r.Alias != "" {
+                return fmt.Sprintf("%s.%s", r.Name, r.Alias)
+        }
+        return r.Name
+}
+
+var commonResourceAttributes = []hcl.AttributeSchema{
+        {
+                Name: "count",
+        },
+        {
+                Name: "for_each",
+        },
+        {
+                Name: "provider",
+        },
+        {
+                Name: "depends_on",
+        },
+}
+
+var resourceBlockSchema = &hcl.BodySchema{
+        Attributes: commonResourceAttributes,
+        Blocks: []hcl.BlockHeaderSchema{
+                {Type: "locals"}, // reserved for future use
+                {Type: "lifecycle"},
+                {Type: "connection"},
+                {Type: "provisioner", LabelNames: []string{"type"}},
+        },
+}
+
+var dataBlockSchema = &hcl.BodySchema{
+        Attributes: commonResourceAttributes,
+        Blocks: []hcl.BlockHeaderSchema{
+                {Type: "lifecycle"}, // reserved for future use
+                {Type: "locals"},    // reserved for future use
+        },
+}
+
+var resourceLifecycleBlockSchema = &hcl.BodySchema{
+        Attributes: []hcl.AttributeSchema{
+                {
+                        Name: "create_before_destroy",
+                },
+                {
+                        Name: "prevent_destroy",
+                },
+                {
+                        Name: "ignore_changes",
+                },
+        },
+}