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unstable: initial tags

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This commit is contained in:
ston1th 2019-08-20 23:57:43 +02:00
commit b3b62af3a4
28 changed files with 503 additions and 91 deletions
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21
pkg/db/migration.go
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@ -9,18 +9,25 @@ import (
const (
versionKey = "version/version"
currentVersion = 1
currentVersion = 2
)
type migrator func(*DB) (int, error)
type migrator func(*DB) error
var migrators = []migrator{
func(db *DB) (int, error) {
return 0, nil
func(db *DB) error {
return nil
},
func(db *DB) error {
// dummy placeholder
return nil
},
func(db *DB) error {
return db.addDefaultTags()
},
}
func (db *DB) RunMigrations() (err error) {
func (db *DB) runMigrations() (err error) {
var version int
err = db.store.Get(versionKey, &version)
if err == store.ErrKeyNotFound {
@ -37,11 +44,11 @@ func (db *DB) RunMigrations() (err error) {
for version < currentVersion {
v := version + 1
log.Printf("db: running migration %d", v)
version, err = migrators[v](db)
err = migrators[v](db)
if err != nil {
return
}
err = db.store.Set(versionKey, version)
err = db.store.Set(versionKey, v)
if err != nil {
return
}