featurebase/cmd/featurebase-parse-sql/main.go
2022-09-30 11:20:58 -07:00

48 lines
887 B
Go

// Copyright 2022 Molecula Corp. (DBA FeatureBase).
// SPDX-License-Identifier: Apache-2.0
package main
import (
"context"
"encoding/json"
"flag"
"fmt"
"os"
"strings"
"github.com/featurebasedb/featurebase/v3/sql3/parser"
)
func main() {
if err := run(context.Background(), os.Args[1:]); err == flag.ErrHelp {
os.Exit(1)
} else if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
func run(ctx context.Context, args []string) error {
fs := flag.NewFlagSet("featurebase-parse-sql", flag.ContinueOnError)
if err := fs.Parse(args); err != nil {
return err
}
q := fs.Arg(0)
if q == "" {
return fmt.Errorf("query required")
}
stmt, err := parser.NewParser(strings.NewReader(q)).ParseStatement()
if err != nil {
return err
}
buf, err := json.MarshalIndent(stmt, "", " ")
if err != nil {
return err
}
fmt.Println(string(buf))
return nil
}