func TestFile(t *testing.T) {
data := []byte(`{"foo": "bar"}`)
path := filepath.Join(os.TempDir(), fmt.Sprintf("file.%d", time.Now().UnixNano()))
fh, err := os.Create(path)
if err != nil {
t.Error(err)
}
defer func() {
fh.Close()
os.Remove(path)
}()
_, err = fh.Write(data)
if err != nil {
t.Error(err)
}
f := NewSource(config.SourceName(path))
c, err := f.Read()
if err != nil {
t.Error(err)
}
t.Logf("%+v", c)
if string(c.Data) != string(data) {
t.Error("data from file does not match")
}
}
func main() {
flag.Parse()
// Write our first entry
if err := writeFile(0); err != nil {
fmt.Println(err)
return
}
defer os.Remove(configFile)
// Create a config instance
config := config.NewConfig(
// aggressive config polling
config.PollInterval(time.Millisecond*500),
// use file as a config source
config.WithSource(file.NewSource(config.SourceName(configFile))),
)
fmt.Println("Starting config runner")
// Start the config runner which polls config
config.Start()
// lets read the value while editing it a number of times
for i := 0; i < 10; i++ {
val := config.Get("key").String("default")
fmt.Println("Got ", val)
writeFile(i + 1)
time.Sleep(time.Second)
}
fmt.Println("Stopping config runner")
// Stop the runner. The cache is still populated
config.Stop()
}
func main() {
flag.Parse()
// Write our first entry
if err := writeFile(0); err != nil {
fmt.Println(err)
return
}
defer os.Remove(configFile)
// Create a config instance
config := config.NewConfig(
// aggressive config polling
config.PollInterval(time.Millisecond*500),
// use file as a config source
config.WithSource(file.NewSource(config.SourceName(configFile))),
)
defer config.Close()
// lets read the value while editing it a number of times
for i := 0; i < 10; i++ {
val := config.Get("key").String("default")
fmt.Println("Got ", val)
writeFile(i + 1)
time.Sleep(time.Second)
}
// watch key that exists
watch(config, "key")
// watch key that does not exist
watch(config, "foo")
fmt.Println("Stopping config runner")
}