wm/vend/xgb/xgbgen/main.go

65 lines
1.2 KiB
Go

package main
import (
"flag"
"io/ioutil"
"log"
"os"
"os/exec"
"strings"
)
var (
protoPath = flag.String("proto-path",
"/usr/share/xcb", "path to directory of X protocol XML files")
gofmt = flag.Bool("gofmt", true,
"When disabled, gofmt will not be run before outputting Go code")
)
func usage() {
basename := os.Args[0]
if lastSlash := strings.LastIndex(basename, "/"); lastSlash > -1 {
basename = basename[lastSlash+1:]
}
log.Printf("Usage: %s [flags] xml-file", basename)
flag.PrintDefaults()
os.Exit(1)
}
func init() {
log.SetFlags(0)
}
func main() {
flag.Usage = usage
flag.Parse()
if flag.NArg() != 1 {
log.Printf("A single XML protocol file can be processed at once.")
flag.Usage()
}
// Read the single XML file into []byte
xmlBytes, err := ioutil.ReadFile(flag.Arg(0))
if err != nil {
log.Fatal(err)
}
// Initialize the buffer, parse it, and filter it through gofmt.
c := newContext()
c.Morph(xmlBytes)
if !*gofmt {
c.out.WriteTo(os.Stdout)
} else {
cmdGofmt := exec.Command("gofmt")
cmdGofmt.Stdin = c.out
cmdGofmt.Stdout = os.Stdout
cmdGofmt.Stderr = os.Stderr
err = cmdGofmt.Run()
if err != nil {
log.Fatal(err)
}
}
}