mirror of
https://codeberg.org/forgejo/forgejo.git
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b6a95a8cb3
* Dropped unused codekit config * Integrated dynamic and static bindata for public * Ignore public bindata * Add a general generate make task * Integrated flexible public assets into web command * Updated vendoring, added all missiong govendor deps * Made the linter happy with the bindata and dynamic code * Moved public bindata definition to modules directory * Ignoring the new bindata path now * Updated to the new public modules import path * Updated public bindata command and drop the new prefix
164 lines
3.9 KiB
Go
164 lines
3.9 KiB
Go
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ddl
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import (
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"github.com/juju/errors"
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"github.com/pingcap/tidb/infoschema"
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"github.com/pingcap/tidb/meta"
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"github.com/pingcap/tidb/meta/autoid"
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"github.com/pingcap/tidb/model"
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"github.com/pingcap/tidb/table"
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"github.com/pingcap/tidb/terror"
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)
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func (d *ddl) onCreateSchema(t *meta.Meta, job *model.Job) error {
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schemaID := job.SchemaID
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dbInfo := &model.DBInfo{}
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if err := job.DecodeArgs(dbInfo); err != nil {
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// arg error, cancel this job.
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job.State = model.JobCancelled
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return errors.Trace(err)
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}
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dbInfo.ID = schemaID
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dbInfo.State = model.StateNone
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dbs, err := t.ListDatabases()
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if err != nil {
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return errors.Trace(err)
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}
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for _, db := range dbs {
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if db.Name.L == dbInfo.Name.L {
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if db.ID != schemaID {
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// database exists, can't create, we should cancel this job now.
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job.State = model.JobCancelled
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return errors.Trace(infoschema.DatabaseExists)
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}
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dbInfo = db
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}
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}
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_, err = t.GenSchemaVersion()
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if err != nil {
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return errors.Trace(err)
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}
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switch dbInfo.State {
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case model.StateNone:
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// none -> public
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job.SchemaState = model.StatePublic
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dbInfo.State = model.StatePublic
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err = t.CreateDatabase(dbInfo)
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if err != nil {
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return errors.Trace(err)
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}
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// finish this job
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job.State = model.JobDone
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return nil
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default:
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// we can't enter here.
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return errors.Errorf("invalid db state %v", dbInfo.State)
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}
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}
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func (d *ddl) delReorgSchema(t *meta.Meta, job *model.Job) error {
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dbInfo := &model.DBInfo{}
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if err := job.DecodeArgs(dbInfo); err != nil {
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// arg error, cancel this job.
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job.State = model.JobCancelled
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return errors.Trace(err)
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}
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tables, err := t.ListTables(dbInfo.ID)
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if terror.ErrorEqual(meta.ErrDBNotExists, err) {
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job.State = model.JobDone
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return nil
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}
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if err != nil {
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return errors.Trace(err)
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}
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if err = d.dropSchemaData(dbInfo, tables); err != nil {
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return errors.Trace(err)
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}
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// finish this background job
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job.SchemaState = model.StateNone
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job.State = model.JobDone
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return nil
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}
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func (d *ddl) onDropSchema(t *meta.Meta, job *model.Job) error {
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dbInfo, err := t.GetDatabase(job.SchemaID)
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if err != nil {
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return errors.Trace(err)
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}
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if dbInfo == nil {
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job.State = model.JobCancelled
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return errors.Trace(infoschema.DatabaseNotExists)
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}
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_, err = t.GenSchemaVersion()
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if err != nil {
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return errors.Trace(err)
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}
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switch dbInfo.State {
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case model.StatePublic:
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// public -> write only
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job.SchemaState = model.StateWriteOnly
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dbInfo.State = model.StateWriteOnly
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err = t.UpdateDatabase(dbInfo)
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case model.StateWriteOnly:
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// write only -> delete only
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job.SchemaState = model.StateDeleteOnly
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dbInfo.State = model.StateDeleteOnly
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err = t.UpdateDatabase(dbInfo)
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case model.StateDeleteOnly:
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dbInfo.State = model.StateDeleteReorganization
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err = t.UpdateDatabase(dbInfo)
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if err = t.DropDatabase(dbInfo.ID); err != nil {
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break
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}
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// finish this job
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job.Args = []interface{}{dbInfo}
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job.State = model.JobDone
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job.SchemaState = model.StateNone
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default:
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// we can't enter here.
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err = errors.Errorf("invalid db state %v", dbInfo.State)
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}
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return errors.Trace(err)
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}
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func (d *ddl) dropSchemaData(dbInfo *model.DBInfo, tables []*model.TableInfo) error {
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for _, tblInfo := range tables {
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alloc := autoid.NewAllocator(d.store, dbInfo.ID)
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t, err := table.TableFromMeta(alloc, tblInfo)
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if err != nil {
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return errors.Trace(err)
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}
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err = d.dropTableData(t)
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if err != nil {
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return errors.Trace(err)
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}
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}
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return nil
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}
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