add flag to ignore all external directories per project (#1851)

* add flag to ignore all external directories per project

Author: motatoes

libs/digger_config/digger_config.go

@@ -562,6 +562,11 @@ func hydrateDiggerConfigYamlWithTerragrunt(configYaml *DiggerConfigYaml, parsing
 		// normalize paths
 		projectDir := path.Join(pathPrefix, atlantisProject.Dir)
 		atlantisProject.Autoplan.WhenModified, err = GetPatternsRelativeToRepo(projectDir, atlantisProject.Autoplan.WhenModified)
+
+		if parsingConfig.TriggerProjectsFromDirOnly {
+			atlantisProject.Autoplan.WhenModified, err = FilterPathsOutsideOfProjectPath(projectDir, atlantisProject.Autoplan.WhenModified)
+		}
+
 		if err != nil {
 			return fmt.Errorf("could not normalize patterns: %v", err)
 		}

libs/digger_config/utils.go

@@ -5,6 +5,7 @@ import (
 	"log"
 	"path"
 	"path/filepath"
+	"strings"
 )
 
 func GetPatternsRelativeToRepo(projectPath string, patterns []string) ([]string, error) {
@@ -15,6 +16,16 @@ func GetPatternsRelativeToRepo(projectPath string, patterns []string) ([]string,
 	return res, nil
 }
 
+func FilterPathsOutsideOfProjectPath(projectPath string, patterns []string) ([]string, error) {
+	res := make([]string, 0)
+	for _, pattern := range patterns {
+		if strings.HasPrefix(pattern, projectPath) {
+			res = append(res, pattern)
+		}
+	}
+	return res, nil
+}
+
 func NormalizeFileName(fileName string) string {
 	res, err := filepath.Abs(path.Join("/", fileName))
 	if err != nil {

libs/digger_config/utils_test.go

@@ -45,3 +45,13 @@ func TestGetPatternsRelativeToRepo(t *testing.T) {
 	assert.Equal(t, "myProject/terraform/environments/devel/*.hcl", res[0])
 
 }
+
+func TestFilterPathsOutsideOfProjectPath(t *testing.T) {
+	projectDir := "staging/aws/us-east-1/k8s"
+	includePatterns := []string{"staging/aws/us-east-1/k8s/*.hcl", "staging/terragrunt-root.hcl vpc/*.tf*", "staging/aws/us-east-1/aws_region.tfvars", "staging/aws/aws_assume_role_arn.tfvars", "staging/aws/us-east-1/k8s/*.tf*"}
+	res, _ := FilterPathsOutsideOfProjectPath(projectDir, includePatterns)
+	assert.Equal(t, 2, len(res))
+	assert.Equal(t, "staging/aws/us-east-1/k8s/*.hcl", res[0])
+	assert.Equal(t, "staging/aws/us-east-1/k8s/*.tf*", res[1])
+
+}

libs/digger_config/yaml.go

@@ -137,24 +137,25 @@ type GenerateProjectsConfigYaml struct {
 }
 
 type TerragruntParsingConfig struct {
-	GitRoot                  *string  `yaml:"gitRoot,omitempty"`
-	AutoPlan                 bool     `yaml:"autoPlan"`
-	AutoMerge                bool     `yaml:"autoMerge"`
-	IgnoreParentTerragrunt   *bool    `yaml:"ignoreParentTerragrunt,omitempty"`
-	CreateParentProject      bool     `yaml:"createParentProject"`
-	IgnoreDependencyBlocks   bool     `yaml:"ignoreDependencyBlocks"`
-	IgnoreIncludeBlocks      bool     `yaml:"ignoreIncludeBlocks"`
-	Parallel                 *bool    `yaml:"parallel,omitempty"`
-	CreateWorkspace          bool     `yaml:"createWorkspace"`
-	CreateProjectName        bool     `yaml:"createProjectName"`
-	DefaultTerraformVersion  string   `yaml:"defaultTerraformVersion"`
-	DefaultWorkflow          string   `yaml:"defaultWorkflow"`
-	FilterPath               string   `yaml:"filterPath"`
-	OutputPath               string   `yaml:"outputPath"`
-	PreserveWorkflows        *bool    `yaml:"preserveWorkflows,omitempty"`
-	PreserveProjects         bool     `yaml:"preserveProjects"`
-	CascadeDependencies      *bool    `yaml:"cascadeDependencies,omitempty"`
-	DefaultApplyRequirements []string `yaml:"defaultApplyRequirements"`
+	GitRoot                    *string  `yaml:"gitRoot,omitempty"`
+	AutoPlan                   bool     `yaml:"autoPlan"`
+	AutoMerge                  bool     `yaml:"autoMerge"`
+	IgnoreParentTerragrunt     *bool    `yaml:"ignoreParentTerragrunt,omitempty"`
+	CreateParentProject        bool     `yaml:"createParentProject"`
+	IgnoreDependencyBlocks     bool     `yaml:"ignoreDependencyBlocks"`
+	IgnoreIncludeBlocks        bool     `yaml:"ignoreIncludeBlocks"`
+	TriggerProjectsFromDirOnly bool     `yaml:"triggerProjectsFromDirOnly"`
+	Parallel                   *bool    `yaml:"parallel,omitempty"`
+	CreateWorkspace            bool     `yaml:"createWorkspace"`
+	CreateProjectName          bool     `yaml:"createProjectName"`
+	DefaultTerraformVersion    string   `yaml:"defaultTerraformVersion"`
+	DefaultWorkflow            string   `yaml:"defaultWorkflow"`
+	FilterPath                 string   `yaml:"filterPath"`
+	OutputPath                 string   `yaml:"outputPath"`
+	PreserveWorkflows          *bool    `yaml:"preserveWorkflows,omitempty"`
+	PreserveProjects           bool     `yaml:"preserveProjects"`
+	CascadeDependencies        *bool    `yaml:"cascadeDependencies,omitempty"`
+	DefaultApplyRequirements   []string `yaml:"defaultApplyRequirements"`
 	//NumExecutors                   int64	`yaml:"numExecutors"`
 	ProjectHclFiles                []string                    `yaml:"projectHclFiles"`
 	CreateHclProjectChilds         bool                        `yaml:"createHclProjectChilds"`