Fixed failing tests

Author: denis256

internal/discovery/discovery.go

@@ -121,6 +121,9 @@ type Discovery struct {
 
 	// excludeByDefault determines whether to exclude configurations by default (triggered by include flags).
 	excludeByDefault bool
+
+	// ignoreExternalDependencies determines whether to drop dependencies that are outside the working directory.
+	ignoreExternalDependencies bool
 }
 
 // DiscoveryOption is a function that modifies a Discovery.
@@ -268,6 +271,12 @@ func (d *Discovery) WithExcludeByDefault() *Discovery {
 	return d
 }
 
+// WithIgnoreExternalDependencies sets the ignoreExternalDependencies flag to true.
+func (d *Discovery) WithIgnoreExternalDependencies() *Discovery {
+	d.ignoreExternalDependencies = true
+	return d
+}
+
 // WithParserOptions sets custom parser options to be used when parsing configs during discovery.
 func (d *Discovery) WithParserOptions(options []hclparse.Option) *Discovery {
 	d.parserOptions = options
@@ -884,6 +893,12 @@ func (d *DependencyDiscovery) DiscoverDependencies(ctx context.Context, l log.Lo
 				continue
 			}
 
+			// Respect global ignore external dependencies when present in options
+			if opts != nil && opts.IgnoreExternalDependencies {
+				// Skip attaching external dependency entirely
+				continue
+			}
+
 			ext := &DiscoveredConfig{
 				Type:     ConfigTypeUnit,
 				Path:     depPath,

internal/runner/common/unit.go

@@ -110,7 +110,9 @@ func (unit *Unit) getPlanFilePath(l log.Logger, opts *options.TerragruntOptions,
 				l.Warnf("Failed to get absolute path for root working dir %s: %v", base, err)
 			}
 		}
+
 		dir = filepath.Join(base, dir)
+
 		if absDir, err := filepath.Abs(dir); err == nil {
 			dir = absDir
 		} else {
@@ -147,6 +149,13 @@ func (unit *Unit) getDependenciesForUnit(unitsMap UnitsMap, terragruntConfigPath
 
 		dependencyUnit, foundUnit := unitsMap[dependencyUnitPath]
 		if !foundUnit {
+			// If external dependencies are being ignored, skip missing dependencies that are outside the working dir
+			if unit.TerragruntOptions != nil && unit.TerragruntOptions.IgnoreExternalDependencies {
+				if !util.HasPathPrefix(dependencyUnitPath, unit.TerragruntOptions.WorkingDir) {
+					continue
+				}
+			}
+
 			dependencyErr := UnrecognizedDependencyError{
 				UnitPath:              unit.Path,
 				DependencyPath:        dependencyPath,

internal/runner/common/unit_resolver.go

@@ -489,6 +489,11 @@ func (r *UnitResolver) resolveDependenciesForUnit(ctx context.Context, l log.Log
 // to actually apply those dependencies or just assume they are already applied. Note that this method will NOT fill in
 // the Dependencies field of the Unit struct (see the crosslinkDependencies method for that).
 func (r *UnitResolver) resolveExternalDependenciesForUnits(ctx context.Context, l log.Logger, unitsMap, unitsAlreadyProcessed UnitsMap, recursionLevel int) (UnitsMap, error) {
+	// When ignoring external dependencies, do not attempt to resolve or include any.
+	if r.Stack.TerragruntOptions != nil && r.Stack.TerragruntOptions.IgnoreExternalDependencies {
+		return UnitsMap{}, nil
+	}
+
 	allExternalDependencies := UnitsMap{}
 	unitsToSkip := unitsMap.MergeMaps(unitsAlreadyProcessed)
 

internal/runner/runnerpool/builder.go

@@ -18,14 +18,20 @@ func Build(ctx context.Context, l log.Logger, terragruntOptions *options.Terragr
 	d := discovery.
 		NewDiscovery(terragruntOptions.WorkingDir).
 		WithOptions(opts).
-		WithDiscoverExternalDependencies().
 		WithParseInclude().
 		WithParseExclude().
 		WithDiscoverDependencies().
 		WithSuppressParseErrors().
 		WithIncludeHiddenDirs([]string{config.StackDir}).
 		WithDiscoveryContext(&discovery.DiscoveryContext{Cmd: terragruntOptions.TerraformCommand})
 
+	// Only discover external dependencies when not explicitly excluded via flag/env.
+	if terragruntOptions.IgnoreExternalDependencies {
+		d = d.WithIgnoreExternalDependencies()
+	} else {
+		d = d.WithDiscoverExternalDependencies()
+	}
+
 	// Configure discovery to look for the configured Terragrunt file name if provided,
 	// otherwise fall back to the default filename.
 	filename := config.DefaultTerragruntConfigPath