func (a *App) cmdInitConfig(ctx *service.CommandContext) {
fi, err := os.Stat(a.configPath())
if fi != nil && err == nil {
fmt.Printf("found init file: %s\n", a.configPath())
return
}
if !os.IsNotExist(err) {
ctx.Fatal("unknown error: %s", err)
}
err = os.MkdirAll(a.configDir(), os.ModePerm)
if err != nil {
ctx.Fatal("failed to create dir %s: %s", a.configDir(), err)
}
f, err := os.Create(a.configPath())
defer f.Close()
if err != nil {
ctx.Fatal("failed to create dir %s: %s", a.configDir(), err)
}
b, err := json.MarshalIndent(&Config{
Addr: ":80",
Entries: []Entry{},
}, "", " ")
if err != nil {
ctx.Fatal("failed to to create config.json file: %s", err)
}
_, err = f.Write(b)
if err != nil {
ctx.Fatal("failed to to create config.json file: %s", err)
}
fmt.Printf("created init file: %s\n", a.configPath())
}
func (a *App) cmdPrintConfig(ctx *service.CommandContext) {
err := a.loadConfig()
if err != nil {
ctx.Fatal(err.Error())
}
b, err := json.MarshalIndent(a.config, "", " ")
if err != nil {
ctx.Fatal(err.Error())
}
fmt.Printf("found config %s:\n\n", a.configPath())
fmt.Println(string(b))
}
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())
}