tson/main.go

89 lines
1.5 KiB
Go

package main
import (
"flag"
"fmt"
"io/ioutil"
"log"
"net/http"
"os"
"path/filepath"
"syscall"
"github.com/mitchellh/go-homedir"
"github.com/skanehira/tson/gui"
"golang.org/x/crypto/ssh/terminal"
)
var (
enableLog = flag.Bool("log", false, "enable log")
url = flag.String("url", "", "get json from url")
)
func printError(err error) int {
fmt.Fprintln(os.Stderr, err)
return 1
}
func init() {
flag.Parse()
if *enableLog {
home, err := homedir.Dir()
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
logWriter, err := os.OpenFile(filepath.Join(home, "tson.log"), os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
os.Exit(printError(err))
}
log.SetOutput(logWriter)
log.SetFlags(log.Lshortfile)
} else {
log.SetOutput(ioutil.Discard)
}
}
func run() int {
var i interface{}
if *url != "" {
resp, err := http.Get(*url)
if err != nil {
return printError(err)
}
defer resp.Body.Close()
i, err = gui.UnMarshalJSON(resp.Body)
if err != nil {
return printError(err)
}
} else {
if !terminal.IsTerminal(0) {
var err error
i, err = gui.UnMarshalJSON(os.Stdin)
if err != nil {
return printError(err)
}
// set tview tty to stdin
os.Stdin = os.NewFile(uintptr(syscall.Stderr), "/dev/tty")
}
}
if i == nil {
return printError(gui.ErrEmptyJSON)
}
if err := gui.New().Run(i); err != nil {
log.Println(err)
return 1
}
return 0
}
func main() {
os.Exit(run())
}