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zeekayandHanzo Dev
aa87442fdd
Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
// Copyright 2026 Hanzo AI, Inc. 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 "github.com/hanzoai/git/models/repo"
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"github.com/hanzoai/git/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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