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-rw-r--r--cleaner/cleaner.go38
1 files changed, 38 insertions, 0 deletions
diff --git a/cleaner/cleaner.go b/cleaner/cleaner.go
new file mode 100644
index 00000000..9bce4c03
--- /dev/null
+++ b/cleaner/cleaner.go
@@ -0,0 +1,38 @@
+package cleaner
+
+import (
+ "fmt"
+ "os"
+ "os/signal"
+ "syscall"
+)
+
+type t func() error
+
+var cleaners []t
+var inactive bool
+
+// Register a cleaner function. When a function is registered, the Signal watcher is started in a goroutine.
+func Register(f t) {
+ cleaners = append(cleaners, f)
+ if !inactive {
+ inactive = false
+ go func() {
+ ch := make(chan os.Signal, 1)
+ signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
+ <-ch
+ fmt.Println("")
+ clean()
+ os.Exit(1)
+ }()
+ }
+}
+
+// Clean invokes all registered cleanup functions
+func clean() {
+ fmt.Println("Cleaning")
+ for _, f := range cleaners {
+ _ = f()
+ }
+ cleaners = []t{}
+}