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argh/cmd/argh-example/main.go

47 lines
677 B

package main
import (
"encoding/json"
"fmt"
"log"
"os"
"git.meatballhat.com/x/argh"
"github.com/davecgh/go-spew/spew"
)
func main() {
asJSON := os.Getenv("ARGH_OUTPUT_JSON") == "enabled"
log.SetFlags(0)
pCfg := argh.NewParserConfig()
pCfg.Prog = &argh.CommandConfig{
NValue: argh.OneOrMoreValue,
ValueNames: []string{"val"},
Flags: &argh.Flags{
Automatic: true,
},
}
pt, err := argh.ParseArgs(os.Args, pCfg)
if err != nil {
log.Fatal(err)
}
ast := argh.NewQuerier(pt.Nodes).AST()
if asJSON {
b, err := json.MarshalIndent(ast, "", " ")
if err != nil {
log.Fatal(err)
}
fmt.Println(string(b))
return
}
spew.Dump(ast)
}