Initial import (not yet complete)

hupper.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"golang.org/x/exp/inotify"
+	"strings"
+)
+
+type arrayFlags []string
+
+func (i *arrayFlags) String() string {
+	return strings.Join(*i, ", ")
+}
+
+func (i *arrayFlags) Set(value string) error {
+	*i = append(*i, value)
+	return nil
+}
+
+func main() {
+	var paths arrayFlags
+	var container string
+
+	flag.Var(&paths, "path", "Path to monitor for changes (may be specified multiple times)")
+	flag.StringVar(&container, "container", "nginx", "Name of the container in which nginx is running")
+	flag.Parse()
+
+	fmt.Printf("Hello, world.\nPaths: %v\nContainer: %v\n", paths, container)
+
+	if len(paths) == 0 {
+		panic("No paths specified")
+	}
+
+	watch_for_changes(paths)
+}
+
+func watch_for_changes(paths []string) {
+	watcher, err := inotify.NewWatcher()
+	if err != nil {
+		panic(err)
+	}
+
+	defer watcher.Close()
+
+	for _, path := range paths {
+		watcher.Watch(path)
+	}
+
+	for {
+		select {
+		case event := <-watcher.Event:
+			panic(event)
+		case err := <-watcher.Error:
+			panic(err)
+		}
+	}
+}