Remove hashicorp/terraform-provider-aws build dependency (#144)

* Remove hashicorp/terraform-provider-aws build dependency

* Add go:generate for rules/api

* Add README to tools/provider-schema

Author: wata727

.gitignore

@@ -0,0 +1 @@
+tools/provider-schema/.terraform/

go.mod

@@ -3,18 +3,34 @@ module github.com/terraform-linters/tflint-ruleset-aws
 go 1.16
 
 require (
+	github.com/agext/levenshtein v1.2.2 // indirect
 	github.com/aws/aws-sdk-go v1.39.0
 	github.com/dave/dst v0.26.2
+	github.com/fatih/color v1.9.0 // indirect
 	github.com/golang/mock v1.6.0
 	github.com/google/go-cmp v0.5.6
 	github.com/hashicorp/aws-sdk-go-base v0.7.1
+	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/hcl/v2 v2.10.0
-	github.com/hashicorp/terraform-plugin-sdk/v2 v2.7.0
+	github.com/hashicorp/yamux v0.0.0-20181012175058-2f1d1f20f75d // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/kylelemons/godebug v1.1.0 // indirect
+	github.com/mattn/go-colorable v0.1.7 // indirect
 	github.com/mitchellh/go-homedir v1.1.0
+	github.com/mitchellh/go-testing-interface v1.14.1 // indirect
+	github.com/mitchellh/go-wordwrap v1.0.0 // indirect
 	github.com/onsi/ginkgo v1.14.2 // indirect
 	github.com/onsi/gomega v1.10.4 // indirect
 	github.com/serenize/snaker v0.0.0-20201027110005-a7ad2135616e
+	github.com/sergi/go-diff v1.2.0 // indirect
+	github.com/stretchr/testify v1.7.0 // indirect
 	github.com/terraform-linters/tflint-plugin-sdk v0.9.0
-	github.com/terraform-providers/terraform-provider-aws v1.60.1-0.20210702165135-63f852f1a2b6
 	github.com/zclconf/go-cty v1.8.4
+	google.golang.org/appengine v1.6.6 // indirect
+	google.golang.org/genproto v0.0.0-20200711021454-869866162049 // indirect
+	google.golang.org/grpc v1.32.0 // indirect
+	google.golang.org/protobuf v1.25.0 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )

go.sum

@@ -0,0 +1,3 @@
+//go:generate go run -tags generators ./generator/main.go
+
+package api

rules/api/api.go

@@ -9,9 +9,7 @@ import (
 
 	"github.com/hashicorp/hcl/v2/gohcl"
 	"github.com/hashicorp/hcl/v2/hclparse"
-	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
 	utils "github.com/terraform-linters/tflint-ruleset-aws/rules/generator-utils"
-	"github.com/terraform-providers/terraform-provider-aws/aws"
 )
 
 type definition struct {
@@ -40,7 +38,7 @@ type providerMeta struct {
 	RuleNameCCList []string
 }
 
-var awsProvider = aws.Provider()
+var awsProvider = utils.LoadProviderSchema("../../tools/provider-schema/schema.json")
 
 func main() {
 	files, err := filepath.Glob("./definitions/*.hcl")
@@ -92,19 +90,25 @@ func main() {
 }
 
 func dataType(resource, attribute string) string {
-	resourceSchema, ok := awsProvider.ResourcesMap[resource]
+	resourceSchema, ok := awsProvider.ResourceSchemas[resource]
 	if !ok {
 		panic(fmt.Sprintf("resource `%s` not found in the Terraform schema", resource))
 	}
-	attrSchema, ok := resourceSchema.Schema[attribute]
+	attrSchema, ok := resourceSchema.Block.Attributes[attribute]
 	if !ok {
 		panic(fmt.Sprintf("`%s.%s` not found in the Terraform schema", resource, attribute))
 	}
 
-	switch attrSchema.Type {
-	case schema.TypeString:
+	switch ty := attrSchema.Type.(type) {
+	case string:
+		if ty != "string" {
+			panic(fmt.Errorf("Unexpected data type: %#v", attrSchema.Type))
+		}
 		return "string"
-	case schema.TypeSet:
+	case []interface{}:
+		if len(ty) != 2 || !(ty[0] == "set" && ty[1] == "string") {
+			panic(fmt.Errorf("Unexpected data type: %#v", attrSchema.Type))
+		}
 		return "list"
 	default:
 		panic(fmt.Errorf("Unexpected data type: %#v", attrSchema.Type))

rules/api/generator/main.go

@@ -0,0 +1,45 @@
+package utils
+
+import (
+	"encoding/json"
+	"io/ioutil"
+)
+
+type Schema struct {
+	ProviderSchemas ProviderSchemas `json:"provider_schemas"`
+}
+
+type ProviderSchemas struct {
+	AWS ProviderSchema `json:"registry.terraform.io/hashicorp/aws"`
+}
+
+type ProviderSchema struct {
+	ResourceSchemas map[string]ResourceSchema `json:"resource_schemas"`
+}
+
+type ResourceSchema struct {
+	Block BlockSchema `json:"block"`
+}
+
+type BlockSchema struct {
+	Attributes map[string]AttributeSchema `json:"attributes"`
+	BlockTypes map[string]ResourceSchema  `json:"block_types"`
+}
+
+type AttributeSchema struct {
+	Type      interface{} `json:"type"`
+	Sensitive bool        `json:"sensitive"`
+}
+
+func LoadProviderSchema(path string) ProviderSchema {
+	src, err := ioutil.ReadFile(path)
+	if err != nil {
+		panic(err)
+	}
+
+	var schema Schema
+	if err := json.Unmarshal(src, &schema); err != nil {
+		panic(err)
+	}
+	return schema.ProviderSchemas.AWS
+}

rules/generator-utils/schema.go

@@ -12,8 +12,7 @@ import (
 	hcl "github.com/hashicorp/hcl/v2"
 	"github.com/hashicorp/hcl/v2/gohcl"
 	"github.com/hashicorp/hcl/v2/hclparse"
-	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
-	"github.com/terraform-providers/terraform-provider-aws/aws"
+	utils "github.com/terraform-linters/tflint-ruleset-aws/rules/generator-utils"
 )
 
 type mappingFile struct {
@@ -56,7 +55,7 @@ func main() {
 		mappingFiles = append(mappingFiles, mf)
 	}
 
-	awsProvider := aws.Provider()
+	awsProvider := utils.LoadProviderSchema("../../tools/provider-schema/schema.json")
 
 	generatedRules := []string{}
 	for _, mappingFile := range mappingFiles {
@@ -99,20 +98,26 @@ func main() {
 	generateDocFile(generatedRules)
 }
 
-func fetchSchema(resource, attribute string, model map[string]interface{}, provider *schema.Provider) *schema.Schema {
-	resourceSchema, ok := provider.ResourcesMap[resource]
+func fetchSchema(resource, attribute string, model map[string]interface{}, provider utils.ProviderSchema) utils.AttributeSchema {
+	resourceSchema, ok := provider.ResourceSchemas[resource]
 	if !ok {
 		panic(fmt.Sprintf("resource `%s` not found in the Terraform schema", resource))
 	}
-	attrSchema, ok := resourceSchema.Schema[attribute]
+	attrSchema, ok := resourceSchema.Block.Attributes[attribute]
 	if !ok {
-		panic(fmt.Sprintf("`%s.%s` not found in the Terraform schema", resource, attribute))
+		if _, ok := resourceSchema.Block.BlockTypes[attribute]; !ok {
+			panic(fmt.Sprintf("`%s.%s` not found in the Terraform schema", resource, attribute))
+		}
 	}
 
 	switch model["type"].(string) {
 	case "string":
-		if attrSchema.Type != schema.TypeString {
-			panic(fmt.Sprintf("`%s.%s` is expected as string, but not", resource, attribute))
+		ty, ok := attrSchema.Type.(string)
+		if !ok {
+			panic(fmt.Sprintf("`%s.%s` is expected as string, but not (%s)", resource, attribute, attrSchema.Type))
+		}
+		if ty != "string" && ty != "number" {
+			panic(fmt.Sprintf("`%s.%s` is expected as string, but not (%s)", resource, attribute, attrSchema.Type))
 		}
 	default:
 		// noop

rules/models/generator/main.go

@@ -7,7 +7,6 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
 	utils "github.com/terraform-linters/tflint-ruleset-aws/rules/generator-utils"
 )
 
@@ -25,7 +24,7 @@ type ruleMeta struct {
 	TestNG        string
 }
 
-func generateRuleFile(resource, attribute string, model map[string]interface{}, schema *schema.Schema) {
+func generateRuleFile(resource, attribute string, model map[string]interface{}, schema utils.AttributeSchema) {
 	ruleName := makeRuleName(resource, attribute)
 
 	meta := &ruleMeta{

rules/models/generator/rule.go

@@ -10,7 +10,7 @@ import (
 	"sort"
 	"text/template"
 
-	"github.com/terraform-providers/terraform-provider-aws/aws"
+	utils "github.com/terraform-linters/tflint-ruleset-aws/rules/generator-utils"
 )
 
 const filename = "resources.go"
@@ -20,11 +20,11 @@ type TemplateData struct {
 }
 
 func main() {
-	provider := aws.Provider()
+	provider := utils.LoadProviderSchema("../../tools/provider-schema/schema.json")
 	resources := make([]string, 0)
 
-	for name, resource := range provider.ResourcesMap {
-		if _, ok := resource.Schema["tags"]; ok {
+	for name, resource := range provider.ResourceSchemas {
+		if _, ok := resource.Block.Attributes["tags"]; ok {
 			resources = append(resources, name)
 		}
 	}

rules/tags/generator/main.go

@@ -0,0 +1 @@
+1.0.3