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forgejo/modules/uploader/diff.go

39 lines
945 B
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package uploader
import (
"strings"
"code.gitea.io/gitea/models"
)
// GetDiffPreview produces and returns diff result of a file which is not yet committed.
func GetDiffPreview(repo *models.Repository, branch, treePath, content string) (*models.Diff, error) {
t, err := NewTemporaryUploadRepository(repo)
defer t.Close()
if err != nil {
return nil, err
}
if err := t.Clone(branch); err != nil {
return nil, err
}
if err := t.SetDefaultIndex(); err != nil {
return nil, err
}
// Add the object to the database
objectHash, err := t.HashObject(strings.NewReader(content))
if err != nil {
return nil, err
}
// Add the object to the index
if err := t.AddObjectToIndex("100644", objectHash, treePath); err != nil {
return nil, err
}
return t.DiffIndex()
}