deps: update to use go1.19

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.18
+        go-version: 1.19
     - id: cache-paths
       name: Get cache paths
       run: |

.github/workflows/e2e.yml

@@ -25,7 +25,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.18
+        go-version: 1.19
     - id: cache-paths
       name: Get cache paths
       run: |

.github/workflows/generate.yml

@@ -13,7 +13,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.18
+        go-version: 1.19
     - id: cache-paths
       name: Get cache paths
       run: |

.github/workflows/goreleaser.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.18
+        go-version: 1.19
     - name: goreleaser check
       uses: goreleaser/goreleaser-action@v3
       with:

.github/workflows/lint.yml

@@ -19,8 +19,8 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.18
+        go-version: 1.19
     - name: Run linters
       uses: golangci/[email protected]
       with:
-        version: v1.45
+        version: v1.48

.github/workflows/release.yml

@@ -22,7 +22,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.18
+        go-version: 1.19
     - name: Install Cosign
       uses: sigstore/[email protected]
       with:

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.19.0-alpine3.15 as builder
+FROM golang:1.19-alpine3.16 as builder
 
 RUN apk add --no-cache make
 

cmd/langserver.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"context"
-	"fmt"
 	"log"
 	"os"
 
@@ -16,7 +15,7 @@ func (cli *CLI) startLanguageServer(configPath string, cliConfig *tflint.Config)
 
 	handler, plugin, err := langserver.NewHandler(configPath, cliConfig)
 	if err != nil {
-		log.Println(fmt.Sprintf("Failed to start language server: %s", err))
+		log.Printf("Failed to start language server: %s", err)
 		return ExitCodeError
 	}
 	if plugin != nil {

docs/developer-guide/building.md

@@ -1,6 +1,6 @@
 # Building TFLint
 
-Go 1.18 or higher is required to build TFLint from source code. Clone the source code and run the `make` command. Built binary will be placed in `dist` directory.
+Go 1.19 or higher is required to build TFLint from source code. Clone the source code and run the `make` command. Built binary will be placed in `dist` directory.
 
 ```console
 $ git clone https://github.com/terraform-linters/tflint.git

go.mod

@@ -1,6 +1,6 @@
 module github.com/terraform-linters/tflint
 
-go 1.18
+go 1.19
 
 require (
 	github.com/Masterminds/semver/v3 v3.1.1

langserver/handler.go

@@ -80,9 +80,9 @@ func (h *handler) handle(ctx context.Context, conn *jsonrpc2.Conn, req *jsonrpc2
 				Data:    req.Params,
 			}
 		}
-		log.Println(fmt.Sprintf("Received `%s` with `%s`", req.Method, string(params)))
+		log.Printf("Received `%s` with `%s`", req.Method, string(params))
 	} else {
-		log.Println(fmt.Sprintf("Received `%s`", req.Method))
+		log.Printf("Received `%s`", req.Method)
 	}
 
 	if h.shutdown && req.Method != "exit" {
@@ -120,7 +120,7 @@ func (h *handler) handle(ctx context.Context, conn *jsonrpc2.Conn, req *jsonrpc2
 
 func (h *handler) chdir(dir string) error {
 	if h.rootDir != dir {
-		log.Println(fmt.Sprintf("Changing directory: %s", dir))
+		log.Printf("Changing directory: %s", dir)
 		if err := os.Chdir(dir); err != nil {
 			return fmt.Errorf("Failed to chdir to %s: %s", dir, err)
 		}

langserver/text_document_did_change.go

@@ -50,7 +50,7 @@ func (h *handler) textDocumentDidChange(ctx context.Context, conn *jsonrpc2.Conn
 		return nil, err
 	}
 
-	log.Println(fmt.Sprintf("Notify `textDocument/publishDiagnostics` with `%#v`", diagnostics))
+	log.Printf("Notify `textDocument/publishDiagnostics` with `%#v`", diagnostics)
 	for path, diags := range diagnostics {
 		err = conn.Notify(
 			ctx,

langserver/text_document_did_open.go

@@ -48,7 +48,7 @@ func (h *handler) textDocumentDidOpen(ctx context.Context, conn *jsonrpc2.Conn,
 		return nil, err
 	}
 
-	log.Println(fmt.Sprintf("Notify `textDocument/publishDiagnostics` with `%#v`", diagnostics))
+	log.Printf("Notify `textDocument/publishDiagnostics` with `%#v`", diagnostics)
 	for path, diags := range diagnostics {
 		err = conn.Notify(
 			ctx,

langserver/workspace_did_change_watched_files.go

@@ -32,7 +32,7 @@ func (h *handler) workspaceDidChangeWatchedFiles(ctx context.Context, conn *json
 		return nil, err
 	}
 
-	log.Println(fmt.Sprintf("Notify `textDocument/publishDiagnostics` with `%#v`", diagnostics))
+	log.Printf("Notify `textDocument/publishDiagnostics` with `%#v`", diagnostics)
 	for path, diags := range diagnostics {
 		err = conn.Notify(
 			ctx,

plugin/checksum.go

@@ -22,7 +22,6 @@ type Checksummer struct {
 // 3a61fff3689f27c89bce22893219919c629d2e10b96e7eadd5fef9f0e90bb353  tflint-ruleset-aws_darwin_amd64.zip
 // 482419fdeed00692304e59558b5b0d915d4727868b88a5adbbbb76f5ed1b537a  tflint-ruleset-aws_linux_amd64.zip
 // db4eed4c0abcfb0b851da5bbfe8d0c71e1c2b6afe4fd627638a462c655045902  tflint-ruleset-aws_windows_amd64.zip
-//
 func NewChecksummer(f io.Reader) (*Checksummer, error) {
 	scanner := bufio.NewScanner(f)
 

plugin/discovery.go

@@ -83,10 +83,10 @@ func FindPluginPath(config *InstallConfig) (string, error) {
 // getPluginDir returns the base plugin directory.
 // Adopted with the following priorities:
 //
-//   1. `plugin_dir` in a global config
-//   2. `TFLINT_PLUGIN_DIR` environment variable
-//   3. Current directory (./.tflint.d/plugins)
-//   4. Home directory (~/.tflint.d/plugins)
+//  1. `plugin_dir` in a global config
+//  2. `TFLINT_PLUGIN_DIR` environment variable
+//  3. Current directory (./.tflint.d/plugins)
+//  4. Home directory (~/.tflint.d/plugins)
 //
 // If the environment variable is set, other directories will not be considered,
 // but if the current directory does not exist, it will fallback to the home directory.

plugin/install.go

@@ -71,7 +71,6 @@ func (c *InstallConfig) AssetName() string {
 //
 //   - The release must contain a signature file for the checksum file with the name checksums.txt.sig
 //   - The signature file must be binary OpenPGP format
-//
 func (c *InstallConfig) Install() (string, error) {
 	dir, err := getPluginDir(c.globalConfig)
 	if err != nil {

rules/terraformrules/utils.go

@@ -235,12 +235,6 @@ type referencable interface {
 	referenceableSigil()
 }
 
-type referenceable struct {
-}
-
-func (r referenceable) referenceableSigil() {
-}
-
 type inputVariableReference struct {
 	referencable
 	name string

tflint/runner.go

@@ -215,13 +215,13 @@ func NewModuleRunners(parent *Runner) ([]*Runner, error) {
 // Basically, this function is a wrapper for hclext.PartialContent, but in some ways it reproduces
 // Terraform language semantics.
 //
-//   1. The block schema implicitly adds dynamic blocks to the target
-//      https://www.terraform.io/language/expressions/dynamic-blocks
-//   2. Supports overriding files
-//      https://www.terraform.io/language/files/override
-//   3. Resources not created by count or for_each will be ignored
-//      https://www.terraform.io/language/meta-arguments/count
-//      https://www.terraform.io/language/meta-arguments/for_each
+//  1. The block schema implicitly adds dynamic blocks to the target
+//     https://www.terraform.io/language/expressions/dynamic-blocks
+//  2. Supports overriding files
+//     https://www.terraform.io/language/files/override
+//  3. Resources not created by count or for_each will be ignored
+//     https://www.terraform.io/language/meta-arguments/count
+//     https://www.terraform.io/language/meta-arguments/for_each
 //
 // However, this behavior is controlled by options. The above is the default.
 func (r *Runner) GetModuleContent(bodyS *hclext.BodySchema, opts sdk.GetModuleContentOption) (*hclext.BodyContent, hcl.Diagnostics) {