mirror of https://github.com/gogs/gogs.git
98 lines
2.8 KiB
Go
98 lines
2.8 KiB
Go
// Copyright 2020 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package db
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import (
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"context"
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"fmt"
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"time"
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"gorm.io/gorm"
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"gogs.io/gogs/internal/errutil"
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"gogs.io/gogs/internal/lfsutil"
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)
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// LFSStore is the persistent interface for LFS objects.
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type LFSStore interface {
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// CreateObject creates a LFS object record in database.
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CreateObject(ctx context.Context, repoID int64, oid lfsutil.OID, size int64, storage lfsutil.Storage) error
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// GetObjectByOID returns the LFS object with given OID. It returns
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// ErrLFSObjectNotExist when not found.
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GetObjectByOID(ctx context.Context, repoID int64, oid lfsutil.OID) (*LFSObject, error)
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// GetObjectsByOIDs returns LFS objects found within "oids". The returned list
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// could have less elements if some oids were not found.
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GetObjectsByOIDs(ctx context.Context, repoID int64, oids ...lfsutil.OID) ([]*LFSObject, error)
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}
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var LFS LFSStore
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// LFSObject is the relation between an LFS object and a repository.
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type LFSObject struct {
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RepoID int64 `gorm:"primaryKey;auto_increment:false"`
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OID lfsutil.OID `gorm:"primaryKey;column:oid"`
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Size int64 `gorm:"not null"`
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Storage lfsutil.Storage `gorm:"not null"`
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CreatedAt time.Time `gorm:"not null"`
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}
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var _ LFSStore = (*lfs)(nil)
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type lfs struct {
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*gorm.DB
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}
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func (db *lfs) CreateObject(ctx context.Context, repoID int64, oid lfsutil.OID, size int64, storage lfsutil.Storage) error {
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object := &LFSObject{
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RepoID: repoID,
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OID: oid,
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Size: size,
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Storage: storage,
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}
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return db.WithContext(ctx).Create(object).Error
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}
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type ErrLFSObjectNotExist struct {
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args errutil.Args
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}
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func IsErrLFSObjectNotExist(err error) bool {
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_, ok := err.(ErrLFSObjectNotExist)
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return ok
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}
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func (err ErrLFSObjectNotExist) Error() string {
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return fmt.Sprintf("LFS object does not exist: %v", err.args)
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}
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func (ErrLFSObjectNotExist) NotFound() bool {
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return true
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}
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func (db *lfs) GetObjectByOID(ctx context.Context, repoID int64, oid lfsutil.OID) (*LFSObject, error) {
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object := new(LFSObject)
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err := db.WithContext(ctx).Where("repo_id = ? AND oid = ?", repoID, oid).First(object).Error
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if err != nil {
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if err == gorm.ErrRecordNotFound {
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return nil, ErrLFSObjectNotExist{args: errutil.Args{"repoID": repoID, "oid": oid}}
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}
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return nil, err
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}
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return object, err
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}
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func (db *lfs) GetObjectsByOIDs(ctx context.Context, repoID int64, oids ...lfsutil.OID) ([]*LFSObject, error) {
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if len(oids) == 0 {
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return []*LFSObject{}, nil
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}
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objects := make([]*LFSObject, 0, len(oids))
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err := db.WithContext(ctx).Where("repo_id = ? AND oid IN (?)", repoID, oids).Find(&objects).Error
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if err != nil && err != gorm.ErrRecordNotFound {
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return nil, err
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}
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return objects, nil
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}
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