code.gitea.io/gitea@v1.19.3/modules/git/repo_commitgraph_gogit.go (about)

     1  // Copyright 2019 The Gitea Authors.
     2  // All rights reserved.
     3  // SPDX-License-Identifier: MIT
     4  
     5  //go:build gogit
     6  
     7  package git
     8  
     9  import (
    10  	"os"
    11  	"path"
    12  
    13  	gitealog "code.gitea.io/gitea/modules/log"
    14  
    15  	"github.com/go-git/go-git/v5/plumbing/format/commitgraph"
    16  	cgobject "github.com/go-git/go-git/v5/plumbing/object/commitgraph"
    17  )
    18  
    19  // CommitNodeIndex returns the index for walking commit graph
    20  func (r *Repository) CommitNodeIndex() (cgobject.CommitNodeIndex, *os.File) {
    21  	indexPath := path.Join(r.Path, "objects", "info", "commit-graph")
    22  
    23  	file, err := os.Open(indexPath)
    24  	if err == nil {
    25  		var index commitgraph.Index
    26  		index, err = commitgraph.OpenFileIndex(file)
    27  		if err == nil {
    28  			return cgobject.NewGraphCommitNodeIndex(index, r.gogitRepo.Storer), file
    29  		}
    30  	}
    31  
    32  	if !os.IsNotExist(err) {
    33  		gitealog.Warn("Unable to read commit-graph for %s: %v", r.Path, err)
    34  	}
    35  
    36  	return cgobject.NewObjectCommitNodeIndex(r.gogitRepo.Storer), nil
    37  }