43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package files
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import (
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"context"
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"strings"
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repo_model "gitea.dev/models/repo"
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"gitea.dev/services/gitdiff"
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)
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// GetDiffPreview produces and returns diff result of a file which is not yet committed.
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func GetDiffPreview(ctx context.Context, repo *repo_model.Repository, branch, treePath, oldContent, newContent string) (*gitdiff.Diff, error) {
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if branch == "" {
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branch = repo.DefaultBranch
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}
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t, err := NewTemporaryUploadRepository(repo)
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if err != nil {
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return nil, err
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}
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defer t.Close()
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if err := t.Clone(ctx, branch, true); err != nil {
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return nil, err
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}
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if err := t.SetDefaultIndex(ctx); err != nil {
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return nil, err
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}
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// Add the object to the database
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objectHash, err := t.HashObjectAndWrite(ctx, strings.NewReader(newContent))
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if err != nil {
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return nil, err
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}
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// Add the object to the index
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if err := t.AddObjectToIndex(ctx, "100644", objectHash, treePath); err != nil {
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return nil, err
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}
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return t.DiffIndex(ctx, oldContent, newContent)
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}
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