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GetDBVersion(): report error rather than aborting

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This commit is contained in:
Liam Staskawicz 2013-09-30 14:44:09 -07:00
parent 8f7107e30a
commit ae19207fff
3 changed files with 15 additions and 7 deletions
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6
cmd/goose/cmd_down.go
View File

@ -20,7 +20,11 @@ func downRun(cmd *Command, args ...string) {
log.Fatal(err)
}
current := goose.GetDBVersion(conf)
current, err := goose.GetDBVersion(conf)
if err != nil {
log.Fatal(err)
}
if current == 0 {
fmt.Println("db is empty, can't go down.")
return

6
cmd/goose/cmd_redo.go
View File

@ -18,7 +18,11 @@ func redoRun(cmd *Command, args ...string) {
log.Fatal(err)
}
target := goose.GetDBVersion(conf)
target, err := goose.GetDBVersion(conf)
if err != nil {
log.Fatal(err)
}
_, earliest := goose.GetPreviousDBVersion(conf.MigrationsDir, target)
downRun(cmd, args...)

10
lib/goose/migrate.go
View File

@ -266,20 +266,20 @@ func createVersionTable(conf *DBConf, db *sql.DB) error {
// wrapper for EnsureDBVersion for callers that don't already have
// their own DB instance
func GetDBVersion(conf *DBConf) int64 {
func GetDBVersion(conf *DBConf) (version int64, err error) {
db, err := sql.Open(conf.Driver.Name, conf.Driver.OpenStr)
if err != nil {
log.Fatal("couldn't open DB:", err)
return -1, err
}
defer db.Close()
version, err := EnsureDBVersion(conf, db)
version, err = EnsureDBVersion(conf, db)
if err != nil {
log.Fatalf("couldn't get DB version: %v", err)
return -1, err
}
return version
return version, nil
}
func GetPreviousDBVersion(dirpath string, version int64) (previous, earliest int64) {