From 35604a9bcf0632ab2da9ea27b5ca2ac9b2ca4b27 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Str=C3=B6mberg?= <t+github@chainguard.dev>
Date: Fri, 18 Oct 2024 09:17:53 -0400
Subject: [PATCH] programkind: quietly skip non-file files (#529)

* programkind: quietly skip non-file files

* add error handling
---
 pkg/programkind/programkind.go | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/pkg/programkind/programkind.go b/pkg/programkind/programkind.go
index d2f9ae51..b9b41292 100644
--- a/pkg/programkind/programkind.go
+++ b/pkg/programkind/programkind.go
@@ -7,6 +7,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"strings"
@@ -93,6 +94,18 @@ func makeFileType(path string, ext string, mime string) *FileType {
 
 // File detects what kind of program this file might be.
 func File(path string) (*FileType, error) {
+	st, err := os.Stat(path)
+	if err != nil {
+		return nil, fmt.Errorf("stat: %w", err)
+	}
+
+	if st.IsDir() {
+		return nil, nil
+	}
+	if st.Mode().Type() == fs.ModeIrregular {
+		return nil, nil
+	}
+
 	// first strategy: mimetype
 	mtype, err := mimetype.DetectFile(path)
 	if err == nil {