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|
package main
import (
"fmt"
"io"
"log"
"os"
"golang.flu0r1ne.net/planr/cmd/planr/sub"
)
const (
VERSION = "0.0.1"
)
func printUsage(w io.Writer) {
fmt.Fprintf (w, "usage: %s command args ... \n", os.Args[0])
fmt.Fprintln(w, " help ")
fmt.Fprintln(w, " version ")
fmt.Fprintln(w, " build ")
fmt.Fprintln(w, " evaluate ")
}
func dieUsage() {
printUsage(os.Stderr)
os.Exit(1)
}
func main() {
log.SetFlags(log.Llongfile | log.Lmsgprefix)
log.SetPrefix("planr: ")
if len(os.Args) < 2 {
dieUsage()
}
subcommand := os.Args[1]
subargs := os.Args[2:]
switch subcommand {
case "version":
fmt.Printf("%s\n", VERSION)
case "build":
sub.Build(subargs)
case "evaluate","eval":
sub.Evaluate(subargs)
case "help", "-h", "-help", "--help":
printUsage(os.Stdout)
default:
fmt.Fprintf(os.Stderr, "unrecognized command %s\n", subcommand)
dieUsage()
}
}
|
