chore: fix some linter warnings

Signed-off-by: Michael Adler <[email protected]>

Author: michaeladler

oci-watcher/io.go

@@ -62,17 +62,6 @@ func unpackTgz(src io.Reader, destDir string, skipHidden bool) error {
 	return nil
 }
 
-func streamToFile(reader io.Reader, filePath string) error {
-	file, err := os.Create(filePath)
-	if err != nil {
-		return err
-	}
-	defer file.Close()
-
-	_, err = io.Copy(file, reader)
-	return err
-}
-
 func findAppFiles(dir string) ([]string, error) {
 	var appFiles []string
 	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {

oci-watcher/main.go

@@ -31,7 +31,7 @@ var (
 func main() {
 	configPath := path.Join(os.Getenv("HOME"), ".docker", "config.json")
 	if !fileExists(configPath) {
-		_ = os.MkdirAll(path.Dir(configPath), 0755)
+		_ = os.MkdirAll(path.Dir(configPath), 0o755)
 
 		reader := bufio.NewReader(os.Stdin)
 
@@ -52,7 +52,7 @@ func main() {
 	}
 }`, encodedAuth)
 
-		file, err := os.OpenFile(configPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
+		file, err := os.OpenFile(configPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o600)
 		if err != nil {
 			log.Fatalf("Failed to create file: %v", err)
 		}

oci-watcher/oci.go

@@ -109,8 +109,7 @@ func downloadFromOCI(url string) (io.ReadCloser, error) {
 	if err != nil {
 		return nil, err
 	}
-	reader, err := rc.BlobGet(ctx, appRef, descriptor.Descriptor{Digest: digest.Digest(sha256)})
-	return reader, nil
+	return rc.BlobGet(ctx, appRef, descriptor.Descriptor{Digest: digest.Digest(sha256)})
 }
 
 func syncDeployments(ociRegistry, deployDir string) error {
@@ -140,7 +139,7 @@ func syncDeployments(ociRegistry, deployDir string) error {
 		}
 
 		log.Printf("%s: fetching from remote", deployment.Name)
-		_ = os.MkdirAll(destDir, 0755)
+		_ = os.MkdirAll(destDir, 0o755)
 
 		tempDir, err := os.MkdirTemp("", deployment.Name)
 		if err != nil {
@@ -175,7 +174,7 @@ func syncDeployments(ociRegistry, deployDir string) error {
 			return err
 		}
 
-		if err := os.WriteFile(hashFile, []byte(expectedHash), 0644); err != nil {
+		if err := os.WriteFile(hashFile, []byte(expectedHash), 0o644); err != nil {
 			return err
 		}