Do a large chunk of the move to go

This commit moves a huge chunk of the code to go. The TODO.md document
indicates what is left to be done.

cmd/make_mysql_account.go

@@ -0,0 +1,67 @@
+package cmd
+
+import (
+	"fmt"
+
+	wisski_distillery "github.com/FAU-CDI/wisski-distillery"
+	"github.com/FAU-CDI/wisski-distillery/env"
+	"github.com/FAU-CDI/wisski-distillery/internal/sqle"
+	"github.com/tkw1536/goprogram/exit"
+	"github.com/tkw1536/goprogram/parser"
+)
+
+// Shell is the 'shell' command
+var MakeMysqlAccount wisski_distillery.Command = makeMysqlAccount{}
+
+type makeMysqlAccount struct{}
+
+func (makeMysqlAccount) Description() wisski_distillery.Description {
+	return wisski_distillery.Description{
+		Requirements: env.Requirements{
+			NeedsConfig: true,
+		},
+		ParserConfig: parser.Config{
+			IncludeUnknown: true,
+		},
+		Command:     "make_mysql_account",
+		Description: "Open a shell in the provided instance",
+	}
+}
+
+var errUnableToReadUsername = exit.Error{
+	ExitCode: exit.ExitGeneric,
+	Message:  "unable to read username: %s",
+}
+
+var errUnableToReadPassword = exit.Error{
+	ExitCode: exit.ExitGeneric,
+	Message:  "unable to read password: %s",
+}
+
+func (mma makeMysqlAccount) Run(context wisski_distillery.Context) error {
+	context.Printf("Username>")
+	username, err := context.ReadLine()
+	if err != nil {
+		return errUnableToReadUsername.WithMessageF(err)
+	}
+
+	context.Printf("Password>")
+	password, err := context.ReadPassword()
+	if err != nil {
+		return errUnableToReadPassword.WithMessageF(err)
+	}
+
+	query := sqle.Format("CREATE USER ?@'%' IDENTIFIED BY ?; GRANT ALL PRIVILEGES ON *.* TO ?@`%` WITH GRANT OPTION; FLUSH PRIVILEGES;", username, password, username)
+	if err != nil {
+		return err
+	}
+	code := context.Environment.SQLShell(context.IOStream, "-e", query)
+
+	if code != 0 {
+		return exit.Error{
+			ExitCode: exit.ExitCode(uint8(code)),
+			Message:  fmt.Sprintf("Exit code %d", code),
+		}
+	}
+	return nil
+}