add context.Context to cli.Context

context.go

@@ -1,18 +1,22 @@
 package cli
 
 import (
+	"context"
 	"errors"
 	"flag"
 	"os"
+	"os/signal"
 	"reflect"
 	"strings"
+	"syscall"
 )
 
 // Context is a type that is passed through to
 // each Handler action in a cli application. Context
 // can be used to retrieve context-specific args and
 // parsed command-line options.
 type Context struct {
+	context.Context
 	App           *App
 	Command       *Command
 	shellComplete bool
@@ -24,9 +28,21 @@ type Context struct {
 // NewContext creates a new context. For use in when invoking an App or Command action.
 func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context {
 	c := &Context{App: app, flagSet: set, parentContext: parentCtx}
-
 	if parentCtx != nil {
+		if parentCtx.Context != nil {
+			parentCtx.Context = context.Background()
+		}
+		c.Context = parentCtx.Context
 		c.shellComplete = parentCtx.shellComplete
+	} else {
+		ctx, cancel := context.WithCancel(context.Background())
+		go func() {
+			defer cancel()
+			sigs := make(chan os.Signal, 1)
+			signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
+			<-sigs
+		}()
+		c.Context = ctx
 	}
 
 	return c

go.mod

@@ -0,0 +1,3 @@
+module gopkg.in/urfave/cli.v2
+
+go 1.12