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package main
import (
"errors"
"flag"
"fmt"
"os"
"path"
"strings"
"text/template"
"time"
)
var templateContent = `
-- +migrate Up
-- +migrate Down
`
var tpl *template.Template
func init() {
tpl = template.Must(template.New("new_migration").Parse(templateContent))
}
type NewCommand struct {
}
func (c *NewCommand) Help() string {
helpText := `
Usage: sql-migrate new [options] name
Create a new a database migration.
Options:
-config=dbconfig.yml Configuration file to use.
-env="development" Environment.
name The name of the migration
`
return strings.TrimSpace(helpText)
}
func (c *NewCommand) Synopsis() string {
return "Create a new migration"
}
func (c *NewCommand) Run(args []string) int {
cmdFlags := flag.NewFlagSet("new", flag.ContinueOnError)
cmdFlags.Usage = func() { ui.Output(c.Help()) }
ConfigFlags(cmdFlags)
if len(args) < 1 {
err := errors.New("A name for the migration is needed")
ui.Error(err.Error())
return 1
}
if err := cmdFlags.Parse(args); err != nil {
return 1
}
if err := CreateMigration(cmdFlags.Arg(0)); err != nil {
ui.Error(err.Error())
return 1
}
return 0
}
func CreateMigration(name string) error {
env, err := GetEnvironment()
if err != nil {
return err
}
if _, err := os.Stat(env.Dir); os.IsNotExist(err) {
return err
}
fileName := fmt.Sprintf("%s-%s.sql", time.Now().Format("20060102150405"), strings.TrimSpace(name))
pathName := path.Join(env.Dir, fileName)
f, err := os.Create(pathName)
if err != nil {
return err
}
defer func() { _ = f.Close() }()
if err := tpl.Execute(f, nil); err != nil {
return err
}
ui.Output(fmt.Sprintf("Created migration %s", pathName))
return nil
}
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