6 files changed, 211 insertions, 4 deletions

diff --git a/vendor/github.com/hashicorp/terraform/config/config.go b/vendor/github.com/hashicorp/terraform/config/config.go
index a157824..3f756dc 100644
--- a/vendor/github.com/hashicorp/terraform/config/config.go
+++ b/vendor/github.com/hashicorp/terraform/config/config.go
@@ -12,6 +12,7 @@ import (
         "github.com/hashicorp/hil"
         "github.com/hashicorp/hil/ast"
         "github.com/hashicorp/terraform/helper/hilmapstructure"
+        "github.com/hashicorp/terraform/plugin/discovery"
         "github.com/mitchellh/reflectwalk"
 )
 
@@ -64,6 +65,7 @@ type Module struct {
 type ProviderConfig struct {
         Name      string
         Alias     string
+        Version   string
         RawConfig *RawConfig
 }
 
@@ -238,6 +240,33 @@ func (r *Resource) Id() string {
         }
 }
 
+// ProviderFullName returns the full name of the provider for this resource,
+// which may either be specified explicitly using the "provider" meta-argument
+// or implied by the prefix on the resource type name.
+func (r *Resource) ProviderFullName() string {
+        return ResourceProviderFullName(r.Type, r.Provider)
+}
+
+// ResourceProviderFullName returns the full (dependable) name of the
+// provider for a hypothetical resource with the given resource type and
+// explicit provider string. If the explicit provider string is empty then
+// the provider name is inferred from the resource type name.
+func ResourceProviderFullName(resourceType, explicitProvider string) string {
+        if explicitProvider != "" {
+                return explicitProvider
+        }
+
+        idx := strings.IndexRune(resourceType, '_')
+        if idx == -1 {
+                // If no underscores, the resource name is assumed to be
+                // also the provider name, e.g. if the provider exposes
+                // only a single resource of each type.
+                return resourceType
+        }
+
+        return resourceType[:idx]
+}
+
 // Validate does some basic semantic checking of the configuration.
 func (c *Config) Validate() error {
         if c == nil {
@@ -349,7 +378,8 @@ func (c *Config) Validate() error {
                 }
         }
 
-        // Check that providers aren't declared multiple times.
+        // Check that providers aren't declared multiple times and that their
+        // version constraints, where present, are syntactically valid.
         providerSet := make(map[string]struct{})
         for _, p := range c.ProviderConfigs {
                 name := p.FullName()
@@ -360,6 +390,16 @@ func (c *Config) Validate() error {
                         continue
                 }
 
+                if p.Version != "" {
+                        _, err := discovery.ConstraintStr(p.Version).Parse()
+                        if err != nil {
+                                errs = append(errs, fmt.Errorf(
+                                        "provider.%s: invalid version constraint %q: %s",
+                                        name, p.Version, err,
+                                ))
+                        }
+                }
+
                 providerSet[name] = struct{}{}
         }
 
diff --git a/vendor/github.com/hashicorp/terraform/config/interpolate_funcs.go b/vendor/github.com/hashicorp/terraform/config/interpolate_funcs.go
index 7b7b3f2..a298cf2 100644
--- a/vendor/github.com/hashicorp/terraform/config/interpolate_funcs.go
+++ b/vendor/github.com/hashicorp/terraform/config/interpolate_funcs.go
@@ -70,6 +70,7 @@ func Funcs() map[string]ast.Function {
                 "coalescelist": interpolationFuncCoalesceList(),
                 "compact":      interpolationFuncCompact(),
                 "concat":       interpolationFuncConcat(),
+                "contains":     interpolationFuncContains(),
                 "dirname":      interpolationFuncDirname(),
                 "distinct":     interpolationFuncDistinct(),
                 "element":      interpolationFuncElement(),
@@ -356,6 +357,22 @@ func interpolationFuncCoalesceList() ast.Function {
         }
 }
 
+// interpolationFuncContains returns true if an element is in the list
+// and return false otherwise
+func interpolationFuncContains() ast.Function {
+        return ast.Function{
+                ArgTypes:   []ast.Type{ast.TypeList, ast.TypeString},
+                ReturnType: ast.TypeBool,
+                Callback: func(args []interface{}) (interface{}, error) {
+                        _, err := interpolationFuncIndex().Callback(args)
+                        if err != nil {
+                                return false, nil
+                        }
+                        return true, nil
+                },
+        }
+}
+
 // interpolationFuncConcat implements the "concat" function that concatenates
 // multiple lists.
 func interpolationFuncConcat() ast.Function {
diff --git a/vendor/github.com/hashicorp/terraform/config/loader.go b/vendor/github.com/hashicorp/terraform/config/loader.go
index 0bfa89c..5dd7d46 100644
--- a/vendor/github.com/hashicorp/terraform/config/loader.go
+++ b/vendor/github.com/hashicorp/terraform/config/loader.go
@@ -194,7 +194,7 @@ func dirFiles(dir string) ([]string, []string, error) {
                         // Only care about files that are valid to load
                         name := fi.Name()
                         extValue := ext(name)
-                        if extValue == "" || isIgnoredFile(name) {
+                        if extValue == "" || IsIgnoredFile(name) {
                                 continue
                         }
 
@@ -215,9 +215,9 @@ func dirFiles(dir string) ([]string, []string, error) {
         return files, overrides, nil
 }
 
-// isIgnoredFile returns true or false depending on whether the
+// IsIgnoredFile returns true or false depending on whether the
 // provided file name is a file that should be ignored.
-func isIgnoredFile(name string) bool {
+func IsIgnoredFile(name string) bool {
         return strings.HasPrefix(name, ".") || // Unix-like hidden files
                 strings.HasSuffix(name, "~") || // vim
                 strings.HasPrefix(name, "#") && strings.HasSuffix(name, "#") // emacs
diff --git a/vendor/github.com/hashicorp/terraform/config/loader_hcl.go b/vendor/github.com/hashicorp/terraform/config/loader_hcl.go
index 9abb196..e85e493 100644
--- a/vendor/github.com/hashicorp/terraform/config/loader_hcl.go
+++ b/vendor/github.com/hashicorp/terraform/config/loader_hcl.go
@@ -17,6 +17,20 @@ type hclConfigurable struct {
         Root *ast.File
 }
 
+var ReservedResourceFields = []string{
+        "connection",
+        "count",
+        "depends_on",
+        "lifecycle",
+        "provider",
+        "provisioner",
+}
+
+var ReservedProviderFields = []string{
+        "alias",
+        "version",
+}
+
 func (t *hclConfigurable) Config() (*Config, error) {
         validKeys := map[string]struct{}{
                 "atlas":     struct{}{},
@@ -562,6 +576,7 @@ func loadProvidersHcl(list *ast.ObjectList) ([]*ProviderConfig, error) {
                 }
 
                 delete(config, "alias")
+                delete(config, "version")
 
                 rawConfig, err := NewRawConfig(config)
                 if err != nil {
@@ -583,9 +598,22 @@ func loadProvidersHcl(list *ast.ObjectList) ([]*ProviderConfig, error) {
                         }
                 }
 
+                // If we have a version field then extract it
+                var version string
+                if a := listVal.Filter("version"); len(a.Items) > 0 {
+                        err := hcl.DecodeObject(&version, a.Items[0].Val)
+                        if err != nil {
+                                return nil, fmt.Errorf(
+                                        "Error reading version for provider[%s]: %s",
+                                        n,
+                                        err)
+                        }
+                }
+
                 result = append(result, &ProviderConfig{
                         Name:      n,
                         Alias:     alias,
+                        Version:   version,
                         RawConfig: rawConfig,
                 })
         }
diff --git a/vendor/github.com/hashicorp/terraform/config/module/tree.go b/vendor/github.com/hashicorp/terraform/config/module/tree.go
index b6f90fd..4b0b153 100644
--- a/vendor/github.com/hashicorp/terraform/config/module/tree.go
+++ b/vendor/github.com/hashicorp/terraform/config/module/tree.go
@@ -92,6 +92,25 @@ func (t *Tree) Children() map[string]*Tree {
         return t.children
 }
 
+// DeepEach calls the provided callback for the receiver and then all of
+// its descendents in the tree, allowing an operation to be performed on
+// all modules in the tree.
+//
+// Parents will be visited before their children but otherwise the order is
+// not defined.
+func (t *Tree) DeepEach(cb func(*Tree)) {
+        t.lock.RLock()
+        defer t.lock.RUnlock()
+        t.deepEach(cb)
+}
+
+func (t *Tree) deepEach(cb func(*Tree)) {
+        cb(t)
+        for _, c := range t.children {
+                c.deepEach(cb)
+        }
+}
+
 // Loaded says whether or not this tree has been loaded or not yet.
 func (t *Tree) Loaded() bool {
         t.lock.RLock()
diff --git a/vendor/github.com/hashicorp/terraform/config/providers.go b/vendor/github.com/hashicorp/terraform/config/providers.go
new file mode 100644
index 0000000..7a50782
--- /dev/null
+++ b/vendor/github.com/hashicorp/terraform/config/providers.go
@@ -0,0 +1,103 @@
+package config
+
+import "github.com/blang/semver"
+
+// ProviderVersionConstraint presents a constraint for a particular
+// provider, identified by its full name.
+type ProviderVersionConstraint struct {
+        Constraint   string
+        ProviderType string
+}
+
+// ProviderVersionConstraints is a map from provider full name to its associated
+// ProviderVersionConstraint, as produced by Config.RequiredProviders.
+type ProviderVersionConstraints map[string]ProviderVersionConstraint
+
+// RequiredProviders returns the ProviderVersionConstraints for this
+// module.
+//
+// This includes both providers that are explicitly requested by provider
+// blocks and those that are used implicitly by instantiating one of their
+// resource types. In the latter case, the returned semver Range will
+// accept any version of the provider.
+func (c *Config) RequiredProviders() ProviderVersionConstraints {
+        ret := make(ProviderVersionConstraints, len(c.ProviderConfigs))
+
+        configs := c.ProviderConfigsByFullName()
+
+        // In order to find the *implied* dependencies (those without explicit
+        // "provider" blocks) we need to walk over all of the resources and
+        // cross-reference with the provider configs.
+        for _, rc := range c.Resources {
+                providerName := rc.ProviderFullName()
+                var providerType string
+
+                // Default to (effectively) no constraint whatsoever, but we might
+                // override if there's an explicit constraint in config.
+                constraint := ">=0.0.0"
+
+                config, ok := configs[providerName]
+                if ok {
+                        if config.Version != "" {
+                                constraint = config.Version
+                        }
+                        providerType = config.Name
+                } else {
+                        providerType = providerName
+                }
+
+                ret[providerName] = ProviderVersionConstraint{
+                        ProviderType: providerType,
+                        Constraint:   constraint,
+                }
+        }
+
+        return ret
+}
+
+// RequiredRanges returns a semver.Range for each distinct provider type in
+// the constraint map. If the same provider type appears more than once
+// (e.g. because aliases are in use) then their respective constraints are
+// combined such that they must *all* apply.
+//
+// The result of this method can be passed to the
+// PluginMetaSet.ConstrainVersions method within the plugin/discovery
+// package in order to filter down the available plugins to those which
+// satisfy the given constraints.
+//
+// This function will panic if any of the constraints within cannot be
+// parsed as semver ranges. This is guaranteed to never happen for a
+// constraint set that was built from a configuration that passed validation.
+func (cons ProviderVersionConstraints) RequiredRanges() map[string]semver.Range {
+        ret := make(map[string]semver.Range, len(cons))
+
+        for _, con := range cons {
+                spec := semver.MustParseRange(con.Constraint)
+                if existing, exists := ret[con.ProviderType]; exists {
+                        ret[con.ProviderType] = existing.AND(spec)
+                } else {
+                        ret[con.ProviderType] = spec
+                }
+        }
+
+        return ret
+}
+
+// ProviderConfigsByFullName returns a map from provider full names (as
+// returned by ProviderConfig.FullName()) to the corresponding provider
+// configs.
+//
+// This function returns no new information than what's already in
+// c.ProviderConfigs, but returns it in a more convenient shape. If there
+// is more than one provider config with the same full name then the result
+// is undefined, but that is guaranteed not to happen for any config that
+// has passed validation.
+func (c *Config) ProviderConfigsByFullName() map[string]*ProviderConfig {
+        ret := make(map[string]*ProviderConfig, len(c.ProviderConfigs))
+
+        for _, pc := range c.ProviderConfigs {
+                ret[pc.FullName()] = pc
+        }
+
+        return ret
+}