add drafty tool named sigsum-debug

Meant to be used for debugging and tests only.

Replaces cmd/tmp/* in log-go, expect for the DNS command which is
redundant.  Use `dig -t txt $domain_hint` to debug domain hints.

1 files changed, 51 insertions, 0 deletions

diff --git a/cmd/sigsum-debug/key/key.go b/cmd/sigsum-debug/key/key.go
new file mode 100644
index 0000000..88973f2
--- /dev/null
+++ b/cmd/sigsum-debug/key/key.go
@@ -0,0 +1,51 @@
+package key
+
+import (
+	"flag"
+	"fmt"
+	"log"
+
+	"git.sigsum.org/sigsum-go/cmd/sigsum-debug/key/hash"
+	"git.sigsum.org/sigsum-go/cmd/sigsum-debug/key/private"
+	"git.sigsum.org/sigsum-go/cmd/sigsum-debug/key/public"
+	"git.sigsum.org/sigsum-go/internal/options"
+)
+
+const usage = `
+sigsum-debug key generates private keys, public keys, and key hashes.
+
+Usage:
+
+  sigsum-debug key help     Outputs a usage message
+  sigsum-debug key private  Outputs a new private key
+  sigsum-debug key public   Outputs a public key for a private key on stdin
+  sigsum-debug key hash     Outputs a key hash for a public key on stdin
+
+`
+
+func Main(args []string) error {
+	var err error
+
+	opt := options.New(args, func() { log.Printf(usage[1:]) }, func(_ *flag.FlagSet) {})
+	switch opt.Name() {
+	case "help":
+		opt.Usage()
+	case "private":
+		err = private.Main(opt.Args())
+	case "public":
+		err = public.Main(opt.Args())
+	case "hash":
+		err = hash.Main(opt.Args())
+	default:
+		err = fmt.Errorf("invalid command %q, try \"help\"", opt.Name())
+	}
+	if err != nil {
+		format := " %s: %w"
+		if len(opt.Name()) == 0 {
+			format = "%s: %w"
+		}
+		err = fmt.Errorf(format, opt.Name(), err)
+	}
+
+	return err
+}