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|
package main
import (
"flag"
"fmt"
"strings"
"github.com/rubenv/sql-migrate"
)
type SkipCommand struct {
}
func (c *SkipCommand) Help() string {
helpText := `
Usage: sql-migrate skip [options] ...
Set the database level to the most recent version available, without actually running the migrations.
Options:
-config=dbconfig.yml Configuration file to use.
-env="development" Environment.
-limit=0 Limit the number of migrations (0 = unlimited).
`
return strings.TrimSpace(helpText)
}
func (c *SkipCommand) Synopsis() string {
return "Sets the database level to the most recent version available, without running the migrations"
}
func (c *SkipCommand) Run(args []string) int {
var limit int
var dryrun bool
cmdFlags := flag.NewFlagSet("up", flag.ContinueOnError)
cmdFlags.Usage = func() { ui.Output(c.Help()) }
cmdFlags.IntVar(&limit, "limit", 0, "Max number of migrations to skip.")
ConfigFlags(cmdFlags)
if err := cmdFlags.Parse(args); err != nil {
return 1
}
err := SkipMigrations(migrate.Up, dryrun, limit)
if err != nil {
ui.Error(err.Error())
return 1
}
return 0
}
func SkipMigrations(dir migrate.MigrationDirection, dryrun bool, limit int) error {
env, err := GetEnvironment()
if err != nil {
return fmt.Errorf("Could not parse config: %s", err)
}
db, dialect, err := GetConnection(env)
if err != nil {
return err
}
source := migrate.FileMigrationSource{
Dir: env.Dir,
}
n, err := migrate.SkipMax(db, dialect, source, dir, limit)
if err != nil {
return fmt.Errorf("Migration failed: %s", err)
}
switch n {
case 0:
ui.Output("All migrations have already been applied")
case 1:
ui.Output("Skipped 1 migration")
default:
ui.Output(fmt.Sprintf("Skipped %d migrations", n))
}
return nil
}
|
