Add option to use comma seperated env var for default exclusion

internal/file/default_exclusion.go

@@ -1,14 +1,27 @@
 package file
 
-import "path/filepath"
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+const debrickedExclusionEnvVar = "DEBRICKED_EXCLUSIONS"
 
 func DefaultExclusions() []string {
-	return []string{
+	defaultValues := []string{
 		filepath.Join("**", "node_modules", "**"),
 		filepath.Join("**", "vendor", "**"),
 		filepath.Join("**", ".git", "**"),
 		filepath.Join("**", "obj", "**"), // nuget
 	}
+
+	envValue := os.Getenv(debrickedExclusionEnvVar)
+	if envValue != "" {
+		defaultValues = strings.Split(envValue, ",")
+	}
+
+	return defaultValues
 }
 
 var EXCLUDED_DIRS_FINGERPRINT = []string{

internal/file/default_exclusion_test.go

@@ -16,6 +16,7 @@ func TestDefaultExclusions(t *testing.T) {
 		assert.Greaterf(t, len(exParts), 0, "failed to assert that %s used correct separator. Proper separator %s", ex, separator)
 	}
 }
+
 func TestDefaultExclusionsFingerprint(t *testing.T) {
 	expectedExclusions := []string{
 		filepath.Join("**", "nbproject", "**"),
@@ -36,3 +37,49 @@ func TestDefaultExclusionsFingerprint(t *testing.T) {
 
 	assert.ElementsMatch(t, expectedExclusions, exclusions, "DefaultExclusionsFingerprint did not return the expected exclusions")
 }
+
+func TestDefaultExclusionsWithTokenEnvVariable(t *testing.T) {
+	oldEnvValue := os.Getenv(debrickedExclusionEnvVar)
+	gt := []string{"*/**.lock", "**/node_modules/**", "*\\**.ex"}
+	err := os.Setenv(debrickedExclusionEnvVar, "*/**.lock,**/node_modules/**,*\\**.ex")
+
+	if err != nil {
+		t.Fatalf("failed to set env var %s", debrickedExclusionEnvVar)
+	}
+
+	defer func(key, value string) {
+		err := os.Setenv(key, value)
+		if err != nil {
+			t.Fatalf("failed to reset env var %s", debrickedExclusionEnvVar)
+		}
+	}(debrickedExclusionEnvVar, oldEnvValue)
+
+	defExclusions := DefaultExclusions()
+	assert.Equal(t, gt, defExclusions)
+
+}
+
+func TestDefaultExclusionsWithEmptyTokenEnvVariable(t *testing.T) {
+	oldEnvValue := os.Getenv(debrickedExclusionEnvVar)
+	err := os.Setenv(debrickedExclusionEnvVar, "")
+	gt := []string{
+		filepath.Join("**", "node_modules", "**"),
+		filepath.Join("**", "vendor", "**"),
+		filepath.Join("**", ".git", "**"),
+		filepath.Join("**", "obj", "**"),
+	}
+
+	if err != nil {
+		t.Fatalf("failed to set env var %s", debrickedExclusionEnvVar)
+	}
+
+	defer func(key, value string) {
+		err := os.Setenv(key, value)
+		if err != nil {
+			t.Fatalf("failed to reset env var %s", debrickedExclusionEnvVar)
+		}
+	}(debrickedExclusionEnvVar, oldEnvValue)
+
+	defExclusions := DefaultExclusions()
+	assert.Equal(t, gt, defExclusions)
+}