init

internal/scanner/scanner.go

@@ -0,0 +1,101 @@
+package scanner
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// IncludePatterns are patterns for env files to include
+var IncludePatterns = []string{
+	".env",
+	".env.*",
+	"*.env",
+}
+
+// ExcludeFiles are specific filenames to exclude
+var ExcludeFiles = []string{
+	".env.example",
+	".env.sample",
+	".env.template",
+}
+
+// ExcludeDirs are directories to skip when scanning
+var ExcludeDirs = []string{
+	"node_modules",
+	".git",
+	"vendor",
+	"venv",
+	".venv",
+	"__pycache__",
+	".idea",
+	".vscode",
+	"dist",
+	"build",
+}
+
+// Scan recursively scans the directory for env files
+func Scan(rootDir string) ([]string, error) {
+	var envFiles []string
+
+	err := filepath.Walk(rootDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		// Skip excluded directories
+		if info.IsDir() {
+			for _, excludeDir := range ExcludeDirs {
+				if info.Name() == excludeDir {
+					return filepath.SkipDir
+				}
+			}
+			return nil
+		}
+
+		// Check if file should be excluded
+		for _, excludeFile := range ExcludeFiles {
+			if info.Name() == excludeFile {
+				return nil
+			}
+		}
+
+		// Check if file matches include patterns
+		if matchesPattern(info.Name()) {
+			// Get relative path from rootDir
+			relPath, err := filepath.Rel(rootDir, path)
+			if err != nil {
+				return err
+			}
+			envFiles = append(envFiles, relPath)
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return envFiles, nil
+}
+
+// matchesPattern checks if filename matches any include pattern
+func matchesPattern(filename string) bool {
+	// Pattern: .env (exact match)
+	if filename == ".env" {
+		return true
+	}
+
+	// Pattern: .env.* (e.g., .env.production, .env.local)
+	if strings.HasPrefix(filename, ".env.") {
+		return true
+	}
+
+	// Pattern: *.env (e.g., docker.env, app.env)
+	if strings.HasSuffix(filename, ".env") && filename != ".env" {
+		return true
+	}
+
+	return false
+}