vendor/github.com/hashicorp/terraform/internal/initwd/load_config.go

   1 package initwd
   2
   3 import (
   4         "fmt"
   5
   6         version "github.com/hashicorp/go-version"
   7         "github.com/hashicorp/terraform-config-inspect/tfconfig"
   8         "github.com/hashicorp/terraform/internal/earlyconfig"
   9         "github.com/hashicorp/terraform/internal/modsdir"
  10         "github.com/hashicorp/terraform/tfdiags"
  11 )
  12
  13 // LoadConfig loads a full configuration tree that has previously had all of
  14 // its dependent modules installed to the given modulesDir using a
  15 // ModuleInstaller.
  16 //
  17 // This uses the early configuration loader and thus only reads top-level
  18 // metadata from the modules in the configuration. Most callers should use
  19 // the configs/configload package to fully load a configuration.
  20 func LoadConfig(rootDir, modulesDir string) (*earlyconfig.Config, tfdiags.Diagnostics) {
  21         rootMod, diags := earlyconfig.LoadModule(rootDir)
  22         if rootMod == nil {
  23                 return nil, diags
  24         }
  25
  26         manifest, err := modsdir.ReadManifestSnapshotForDir(modulesDir)
  27         if err != nil {
  28                 diags = diags.Append(tfdiags.Sourceless(
  29                         tfdiags.Error,
  30                         "Failed to read module manifest",
  31                         fmt.Sprintf("Terraform failed to read its manifest of locally-cached modules: %s.", err),
  32                 ))
  33                 return nil, diags
  34         }
  35
  36         return earlyconfig.BuildConfig(rootMod, earlyconfig.ModuleWalkerFunc(
  37                 func(req *earlyconfig.ModuleRequest) (*tfconfig.Module, *version.Version, tfdiags.Diagnostics) {
  38                         var diags tfdiags.Diagnostics
  39
  40                         key := manifest.ModuleKey(req.Path)
  41                         record, exists := manifest[key]
  42                         if !exists {
  43                                 diags = diags.Append(tfdiags.Sourceless(
  44                                         tfdiags.Error,
  45                                         "Module not installed",
  46                                         fmt.Sprintf("Module %s is not yet installed. Run \"terraform init\" to install all modules required by this configuration.", req.Path.String()),
  47                                 ))
  48                                 return nil, nil, diags
  49                         }
  50
  51                         mod, mDiags := earlyconfig.LoadModule(record.Dir)
  52                         diags = diags.Append(mDiags)
  53                         return mod, record.Version, diags
  54                 },
  55         ))
  56 }