Update to goprogram 0.1.0

internal/core/params.go

@@ -1,6 +1,9 @@
 package core
 
 import (
+	"context"
+	"os"
+	"os/signal"
 	"path/filepath"
 
 	"github.com/FAU-CDI/wisski-distillery/pkg/environment"
@@ -8,7 +11,8 @@ import (
 
 // Params are used to initialize the excutable.
 type Params struct {
-	ConfigPath string // ConfigPath is the path to the configuration file for the distillery
+	ConfigPath string          // ConfigPath is the path to the configuration file for the distillery
+	Context    context.Context // Context for the distillery
 }
 
 // ParamsFromEnv creates a new set of parameters from the environment.
@@ -28,5 +32,19 @@ func ParamsFromEnv() (params Params, err error) {
 
 	// and add the configuration file name to it!
 	params.ConfigPath = filepath.Join(params.ConfigPath, ConfigFile)
+
+	// generate a new context
+	ctx, cancel := context.WithCancel(context.Background())
+	params.Context = ctx
+
+	// cancel the context on an interrupt
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt)
+	go func() {
+		<-c
+		cancel()
+	}()
+
+	// and return the params!
 	return params, nil
 }