Iverted order, moved print, and new tests

1 files changed, 13 insertions, 6 deletions

diff --git a/util/interrupt/cleaner.go b/util/interrupt/cleaner.go
index 3f6c3afb..76c9d04d 100644
--- a/util/interrupt/cleaner.go
+++ b/util/interrupt/cleaner.go
@@ -16,7 +16,7 @@ var active = false
 // RegisterCleaner is responsible for regisreting a cleaner function. When a function is registered, the Signal watcher is started in a goroutine.
 func RegisterCleaner(f ...Cleaner) {
 	for _, fn := range f {
-		cleaners = append(cleaners, fn)
+		cleaners = append([]Cleaner{fn}, cleaners...)
 		if !active {
 			active = true
 			go func() {
@@ -25,18 +25,25 @@ func RegisterCleaner(f ...Cleaner) {
 				<-ch
 				// Prevent un-terminated ^C character in terminal
 				fmt.Println()
-				clean()
+				fmt.Println("Cleaning")
+				errl := Clean()
+				for _, err := range errl {
+					fmt.Println(err)
+				}
 				os.Exit(1)
 			}()
 		}
 	}
 }
 
-// Clean invokes all registered cleanup functions
-func clean() {
-	fmt.Println("Cleaning")
+// Clean invokes all registered cleanup functions, and returns a list of errors, if they exist.
+func Clean() (errorlist []error) {
 	for _, f := range cleaners {
-		_ = f()
+		err := f()
+		if err != nil {
+			errorlist = append(errorlist, err)
+		}
 	}
 	cleaners = []Cleaner{}
+	return
 }