/
main.go
83 lines (77 loc) · 1.77 KB
/
main.go
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package main
import (
"crypto/rand"
"crypto/sha256"
"encoding/base64"
"flag"
"fmt"
"io"
"log"
"os"
"github.com/mjl-/sconf"
"golang.org/x/mod/sumdb/note"
)
func usage() {
log.Println("usage: gobuild config")
log.Println(" gobuild testconfig gobuild.conf")
log.Println(" gobuild serve [flags] [gobuild.conf]")
log.Println(" gobuild genkey name")
log.Println(" gobuild get [flags] module[@version/package]")
log.Println(" gobuild sum < file")
flag.PrintDefaults()
os.Exit(2)
}
func main() {
log.SetFlags(0)
flag.Usage = usage
flag.Parse()
args := flag.Args()
if len(args) == 0 {
usage()
}
cmd, args := args[0], args[1:]
switch cmd {
default:
usage()
case "config":
if len(args) != 0 {
usage()
}
if err := sconf.Describe(os.Stdout, &config); err != nil {
log.Fatalf("describing config: %v", err)
}
case "testconfig":
if len(args) != 1 {
usage()
}
if err := sconf.ParseFile(args[0], &config); err != nil {
log.Fatalf("parsing config file: %v", err)
}
log.Printf("config OK")
case "serve":
serve(args)
case "genkey":
if len(args) != 1 {
usage()
}
if skey, vkey, err := note.GenerateKey(rand.Reader, args[0]); err != nil {
log.Fatalf("generating key: %v", err)
} else {
log.Printf("Signer key: %s", skey)
log.Printf("Verifier key: %s", vkey)
log.Printf(`Configure the signer key in your server config file, and use the verifier key with the "get" subcommand.`)
}
case "get":
get(args)
case "sum":
if len(args) != 0 {
usage()
}
sha := sha256.New()
if _, err := io.Copy(sha, os.Stdin); err != nil {
log.Fatalf("read: %v", err)
} else if _, err := fmt.Println("0" + base64.RawURLEncoding.EncodeToString(sha.Sum(nil)[:20])); err != nil {
log.Fatalf("write: %v", err)
}
}
}