func (a *App) cmdSetHost(ctx *service.CommandContext) {
ctx.RequireExactlyNArgs(2)
err := a.loadConfig()
if err != nil {
// todo: more helpful error if config.json does not exist
ctx.Fatal(err.Error())
}
host, dest := ctx.Args[0], ctx.Args[1]
u, err := url.Parse(dest)
if err != nil {
ctx.Fatal("failed to parse dest url: %s", err)
}
us := u.String()
// todo: check if host already exists
found := false
for _, e := range a.config.Entries {
if e.Source == host {
fmt.Printf("replacing existing entry for %s: %s\n", host, *e.DestHost)
e.DestHost = &us
found = true
}
}
if !found {
a.config.Entries = append(a.config.Entries, Entry{
Source: host,
DestHost: &us,
})
}
b, err := json.MarshalIndent(a.config, "", " ")
if err != nil {
ctx.Fatal(err.Error())
}
err = ioutil.WriteFile(a.configPath(), b, os.ModePerm)
if err != nil {
ctx.Fatal(err.Error())
}
fmt.Printf("registered: %s => %s\n", host, u.String())
}
