mirror of
https://github.com/hanzoai/forge.git
synced 2026-10-30 15:00:39 +00:00
zeekayandHanzo Dev
9a07b4d089
2978 files. The fork is 2026-07-15 (rebrand: gitea.dev -> github.com/hanzoai/git), so 2026 is the year, and "Copyright 2026 Hanzo AI, Inc." was already the form used by the handful of files that had ours. Shape is now: // Copyright 2026 Hanzo AI, Inc. All rights reserved. // Copyright 2015 The Gogs Authors. All rights reserved. // Copyright 2019 The Gitea Authors. All rights reserved. // SPDX-License-Identifier: MIT Ours on top, theirs retained verbatim. Retained because MIT requires it, and separately because they are true — those authors did write that code. Not renamed to "The Git Authors": Git is a different project under a different license, and putting its name here would attribute this code to people who have nothing to do with it. Adding our line is the fix; overwriting theirs would have been both a licence violation and a false statement. gofmt still reports import-order drift in some of these files. It predates this change (verified against a stash) and is left alone rather than burying a one-line-per-file legal change under 3000 files of unrelated reordering. Build clean. Co-authored-by: Hanzo Dev <[email protected]>
100 lines
2.9 KiB
Go
100 lines
2.9 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go:build !gogit
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package lfs
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import (
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"bufio"
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"context"
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"errors"
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"io"
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"strconv"
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"strings"
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"github.com/hanzoai/git/modules/git"
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"github.com/hanzoai/git/modules/git/gitcmd"
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"github.com/hanzoai/git/modules/git/pipeline"
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"github.com/hanzoai/git/modules/util"
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"golang.org/x/sync/errgroup"
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)
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// SearchPointerBlobs scans the whole repository for LFS pointer files
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func SearchPointerBlobs(ctx context.Context, repo *git.Repository, pointerChan chan<- PointerBlob) error {
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cmd1AllObjs, cmd3BatchContent := gitcmd.NewCommand(), gitcmd.NewCommand()
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cmd1AllObjsStdout, cmd1AllObjsStdoutClose := cmd1AllObjs.MakeStdoutPipe()
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defer cmd1AllObjsStdoutClose()
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cmd3BatchContentIn, cmd3BatchContentOut, cmd3BatchContentClose := cmd3BatchContent.MakeStdinStdoutPipe()
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defer cmd3BatchContentClose()
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// Create the go-routines in reverse order (update: the order is not needed any more, the pipes are properly prepared)
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wg := errgroup.Group{}
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// 4. Take the output of cat-file --batch and check if each file in turn
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// to see if they're pointers to files in the LFS store
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wg.Go(func() error {
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return createPointerResultsFromCatFileBatch(cmd3BatchContentOut, pointerChan)
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})
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// 3. Take the shas of the blobs and batch read them
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wg.Go(func() error {
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return pipeline.CatFileBatch(ctx, cmd3BatchContent, repo.Path)
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})
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// 2. From the provided objects restrict to blobs <=1k
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wg.Go(func() error {
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return pipeline.BlobsLessThan1024FromCatFileBatchCheck(cmd1AllObjsStdout, cmd3BatchContentIn)
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})
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// 1. Run batch-check on all objects in the repository
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wg.Go(func() error {
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return pipeline.CatFileBatchCheckAllObjects(ctx, cmd1AllObjs, repo.Path)
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})
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err := wg.Wait()
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close(pointerChan)
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return err
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}
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func createPointerResultsFromCatFileBatch(catFileBatchReader io.ReadCloser, pointerChan chan<- PointerBlob) error {
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defer catFileBatchReader.Close()
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bufferedReader := bufio.NewReader(catFileBatchReader)
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buf := make([]byte, 1025)
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for {
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// File descriptor line: sha
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sha, err := bufferedReader.ReadString(' ')
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if err != nil {
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return util.Iif(errors.Is(err, io.EOF), nil, err)
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}
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sha = strings.TrimSpace(sha)
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// Throw away the blob
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if _, err := bufferedReader.ReadString(' '); err != nil {
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return err
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}
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sizeStr, err := bufferedReader.ReadString('\n')
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if err != nil {
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return err
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}
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size, err := strconv.Atoi(sizeStr[:len(sizeStr)-1])
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if err != nil {
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return err
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}
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pointerBuf := buf[:size+1]
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if _, err := io.ReadFull(bufferedReader, pointerBuf); err != nil {
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return err
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}
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pointerBuf = pointerBuf[:size]
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// Now we need to check if the pointerBuf is an LFS pointer
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pointer, _ := ReadPointerFromBuffer(pointerBuf)
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if !pointer.IsValid() {
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continue
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}
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pointerChan <- PointerBlob{Hash: sha, Pointer: pointer}
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}
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}
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