Decode module calls (for uninitialized modules)

go.mod

@@ -19,7 +19,7 @@ require (
  github.com/hashicorp/terraform-exec v0.16.1
  github.com/hashicorp/terraform-json v0.13.0
  github.com/hashicorp/terraform-registry-address v0.0.0-20220422093245-eb7bcc2ff473
- github.com/hashicorp/terraform-schema v0.0.0-20220425141842-cda625299dc9
+ github.com/hashicorp/terraform-schema v0.0.0-20220509053855-1e3acbcfd531
  github.com/kylelemons/godebug v1.1.0 // indirect
  github.com/mh-cbon/go-fmt-fail v0.0.0-20160815164508-67765b3fbcb5
  github.com/mitchellh/cli v1.1.3

go.sum

@@ -326,8 +326,8 @@ github.com/hashicorp/terraform-json v0.13.0 h1:Li9L+lKD1FO5RVFRM1mMMIBDoUHslOniy
 github.com/hashicorp/terraform-json v0.13.0/go.mod h1:y5OdLBCT+rxbwnpxZs9kGL7R9ExU76+cpdY8zHwoazk=
 github.com/hashicorp/terraform-registry-address v0.0.0-20220422093245-eb7bcc2ff473 h1:Vp3YMcnM+TvVMV5TplAhGeuzz3A0562AywL32y71y3Y=
 github.com/hashicorp/terraform-registry-address v0.0.0-20220422093245-eb7bcc2ff473/go.mod h1:bdLC+qQlJIBHKbCMA6GipcuaKjmjcvZlnVdpU583z3Y=
-github.com/hashicorp/terraform-schema v0.0.0-20220425141842-cda625299dc9 h1:lnwLYkgs6ot8QCcoLodn50IjjV0yG/vGeZDVMCVBwp0=
-github.com/hashicorp/terraform-schema v0.0.0-20220425141842-cda625299dc9/go.mod h1:R6g3l4kOXPSYVNIKt330PHRXmjVqmI2PEITTBZeGtrk=
+github.com/hashicorp/terraform-schema v0.0.0-20220509053855-1e3acbcfd531 h1:CVBByNVwgdRBKz6hdrL547Rw6RU4QF7sDnxvISdoBxM=
+github.com/hashicorp/terraform-schema v0.0.0-20220509053855-1e3acbcfd531/go.mod h1:rLQP6aOmOcA+C68h3Ea7utboW/UWwgn5m8i/pE5rm28=
 github.com/hashicorp/terraform-svchost v0.0.0-20200729002733-f050f53b9734 h1:HKLsbzeOsfXmKNpr3GiT18XAblV0BjCbzL8KQAMZGa0=
 github.com/hashicorp/terraform-svchost v0.0.0-20200729002733-f050f53b9734/go.mod h1:kNDNcF7sN4DocDLBkQYz73HGKwN1ANB1blq4lIYLYvg=
 github.com/huandu/xstrings v1.3.1/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=

internal/decoder/module_schema.go

@@ -37,6 +37,7 @@ func schemaForModule(mod *state.Module, schemaReader state.SchemaReader, modRead
  ProviderReferences: mod.Meta.ProviderReferences,
  Variables: mod.Meta.Variables,
  Filenames: mod.Meta.Filenames,
+ ModuleCalls: mod.Meta.ModuleCalls,
  }
 
  return sm.SchemaForModule(meta)

internal/decoder/path_reader.go

@@ -14,7 +14,7 @@ import (
 type ModuleReader interface {
  ModuleByPath(modPath string) (*state.Module, error)
  List() ([]*state.Module, error)
- ModuleCalls(modPath string) ([]tfmod.ModuleCall, error)
+ ModuleCalls(modPath string) (tfmod.ModuleCalls, error)
  ModuleMeta(modPath string) (*tfmod.Meta, error)
 }
 

internal/state/module.go

@@ -23,6 +23,7 @@ type ModuleMetadata struct {
  Variables map[string]tfmod.Variable
  Outputs map[string]tfmod.Output
  Filenames []string
+ ModuleCalls map[string]tfmod.DeclaredModuleCall
 }
 
 func (mm ModuleMetadata) Copy() ModuleMetadata {
@@ -68,6 +69,13 @@ func (mm ModuleMetadata) Copy() ModuleMetadata {
  }
  }
 
+ if mm.ModuleCalls != nil {
+ newMm.ModuleCalls = make(map[string]tfmod.DeclaredModuleCall, len(mm.ModuleCalls))
+ for name, moduleCall := range mm.ModuleCalls {
+ newMm.ModuleCalls[name] = moduleCall
+ }
+ }
+
  return newMm
 }
 
@@ -306,25 +314,40 @@ func (s *ModuleStore) ModuleByPath(path string) (*Module, error) {
  return mod, nil
 }
 
-func (s *ModuleStore) ModuleCalls(modPath string) ([]tfmod.ModuleCall, error) {
- result := make([]tfmod.ModuleCall, 0)
- modList, err := s.List()
- for _, mod := range modList {
- if mod.ModManifest != nil {
- for _, record := range mod.ModManifest.Records {
- if record.IsRoot() {
- continue
- }
- result = append(result, tfmod.ModuleCall{
- LocalName: record.Key,
- SourceAddr: record.SourceAddr,
- Version: record.VersionStr,
- Path: filepath.Join(modPath, record.Dir),
- })
+func (s *ModuleStore) ModuleCalls(modPath string) (tfmod.ModuleCalls, error) {
+ mod, err := s.ModuleByPath(modPath)
+ if err != nil {
+ return tfmod.ModuleCalls{}, err
+ }
+
+ modCalls := tfmod.ModuleCalls{
+ Installed: make(map[string]tfmod.InstalledModuleCall),
+ Declared: make(map[string]tfmod.DeclaredModuleCall),
+ }
+
+ if mod.ModManifest != nil {
+ for _, record := range mod.ModManifest.Records {
+ if record.IsRoot() {
+ continue
+ }
+ modCalls.Installed[record.Key] = tfmod.InstalledModuleCall{
+ LocalName: record.Key,
+ SourceAddr: record.SourceAddr,
+ Version: record.Version,
+ Path: filepath.Join(modPath, record.Dir),
  }
  }
  }
- return result, err
+
+ for _, mc := range mod.Meta.ModuleCalls {
+ modCalls.Declared[mc.LocalName] = tfmod.DeclaredModuleCall{
+ LocalName: mc.LocalName,
+ SourceAddr: mc.SourceAddr,
+ Version: mc.Version,
+ }
+ }
+
+ return modCalls, err
 }
 
 func (s *ModuleStore) ModuleMeta(modPath string) (*tfmod.Meta, error) {
@@ -340,6 +363,7 @@ func (s *ModuleStore) ModuleMeta(modPath string) (*tfmod.Meta, error) {
  Variables: mod.Meta.Variables,
  Outputs: mod.Meta.Outputs,
  Filenames: mod.Meta.Filenames,
+ ModuleCalls: mod.Meta.ModuleCalls,
  }, nil
 }
 
@@ -705,6 +729,7 @@ func (s *ModuleStore) UpdateMetadata(path string, meta *tfmod.Meta, mErr error)
  Variables: meta.Variables,
  Outputs: meta.Outputs,
  Filenames: meta.Filenames,
+ ModuleCalls: meta.ModuleCalls,
  }
  mod.MetaErr = mErr
 

internal/state/state.go

@@ -192,7 +192,7 @@ type ModuleReader interface {
 }
 
 type ModuleCallReader interface {
- ModuleCalls(modPath string) ([]tfmod.ModuleCall, error)
+ ModuleCalls(modPath string) (tfmod.ModuleCalls, error)
  ModuleMeta(modPath string) (*tfmod.Meta, error)
 }
 

internal/terraform/module/watcher.go

@@ -365,7 +365,9 @@ func decodeCalledModulesFunc(fs ReadOnlyFS, modStore *state.ModuleStore, schemaR
  return
  }
 
- for _, mc := range moduleCalls {
+ // TODO: walk through declared modules too - maybe deduplicated?
+
+ for _, mc := range moduleCalls.Installed {
  fi, err := os.Stat(mc.Path)
  if err != nil || !fi.IsDir() {
  continue