Pnpm suppport (#6)

* fix: resolves issues #3 and #4

* feat: add pnpm support & introduce pkg manager wrap for npm

pkg/common/utils/command.go

@@ -1,7 +1,6 @@
 package utils
 
 import (
-	"fmt"
 	"os"
 	"os/exec"
 )
@@ -10,8 +9,10 @@ func ExecCmd(name string, args, env []string) error {
 	cmd := exec.Command(name, args...)
 	cmd.Env = append(os.Environ(), env...)
 
-	if err := cmd.Run(); err != nil {
-		return fmt.Errorf("error running cmd %s: %s\n", name, err.Error())
-	}
-	return nil
+	// Connect to standard streams
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Stdin = os.Stdin
+
+	return cmd.Run()
 }

pkg/common/utils/config.go

@@ -1,6 +1,10 @@
 package utils
 
-import "os"
+import (
+	"fmt"
+	"os"
+	"strings"
+)
 
 func ApiKey() string {
 	return os.Getenv("SAFEDEP_API_KEY")
@@ -13,3 +17,35 @@ func TenantDomain() string {
 func NpmAuthToken() string {
 	return os.Getenv("NPM_AUTH_TOKEN")
 }
+
+func ValidateEnvVars() error {
+	apiKey := ApiKey()
+	tenantId := TenantDomain()
+	var missingVars []string
+
+	if apiKey == "" {
+		missingVars = append(missingVars, "SAFEDEP_API_KEY")
+	}
+	if tenantId == "" {
+		missingVars = append(missingVars, "SAFEDEP_TENANT_ID")
+	}
+
+	if len(missingVars) > 0 {
+		return fmt.Errorf(`
+SafeDep configuration incomplete
+
+Missing environment variables:
+  %s
+
+To enable package scanning:
+  1. Export these variables in your terminal:
+     export %s=your_api_key
+     export %s=your_tenant_id
+  2. Or add them to your shell profile file
+
+For more information, visit: https://docs.safedep.io/cloud/quickstart
+`, strings.Join(missingVars, "\n  "), missingVars[0], missingVars[len(missingVars)-1])
+	}
+
+	return nil
+}

pkg/common/utils/utils.go

@@ -33,3 +33,23 @@ func ParsePackageInfo(input string) (packageName, version string, err error) {
 
 	return "", "", fmt.Errorf("invalid format: expected 'package' OR 'package@version', got '%s'", input)
 }
+
+func IsInstallCommand(pkgManager, cmd string) bool {
+	validActions := map[string]map[string]bool{
+		"npm": {
+			"install": true,
+			"i":       true,
+			"add":     true,
+		},
+		"pnpm": {
+			"add":     true,
+			"install": true,
+			"i":       true,
+		},
+	}
+
+	if actions, exists := validActions[pkgManager]; exists {
+		return actions[cmd]
+	}
+	return false
+}