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authorRafael Passos <rafael@rcpassos.me>2018-10-24 18:36:39 -0300
committerRafael Passos <rafael@rcpassos.me>2018-10-24 18:36:39 -0300
commitf72b18496b508c23cee6fa99d764cfe59208515c (patch)
tree0cc0183f66e315319795a264d47ffab59983e3ad /util/interrupt
parent4f4af4584f21f294cb77b4adbd4a2ae054b49be9 (diff)
downloadgit-bug-f72b18496b508c23cee6fa99d764cfe59208515c.tar.gz
moved cleaner function to util/interrupt
Diffstat (limited to 'util/interrupt')
-rw-r--r--util/interrupt/cleaner.go39
1 files changed, 39 insertions, 0 deletions
diff --git a/util/interrupt/cleaner.go b/util/interrupt/cleaner.go
new file mode 100644
index 00000000..dfb8e25b
--- /dev/null
+++ b/util/interrupt/cleaner.go
@@ -0,0 +1,39 @@
+package interrupt
+
+import (
+ "fmt"
+ "os"
+ "os/signal"
+ "syscall"
+)
+
+type Cleaner func() error
+
+var cleaners []Cleaner
+var inactive bool
+
+// 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) {
+ 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
+ // Prevent un-terminated ^C character in terminal
+ fmt.Println()
+ clean()
+ os.Exit(1)
+ }()
+ }
+}
+
+// Clean invokes all registered cleanup functions
+func clean() {
+ fmt.Println("Cleaning")
+ for _, f := range cleaners {
+ _ = f()
+ }
+ cleaners = []Cleaner{}
+}