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package git
import (
"fmt"
"path/filepath"
"strconv"
"gitlab.com/gitlab-org/gitaly/v16/proto/go/gitalypb"
)
// NewTreeEntry is a helper to construct a gitalypb.TreeEntry from the provided parameters.
func NewTreeEntry(commitOid, rootPath string, filename, oidBytes, modeBytes []byte) (*gitalypb.TreeEntry, error) {
var objectType gitalypb.TreeEntry_EntryType
mode, err := strconv.ParseInt(string(modeBytes), 8, 32)
if err != nil {
return nil, fmt.Errorf("parse mode: %w", err)
}
oid := fmt.Sprintf("%02x", oidBytes)
// Based on https://github.com/git/git/blob/v2.13.1/builtin/ls-tree.c#L67-L87
switch mode & 0xf000 {
case 0o160000:
objectType = gitalypb.TreeEntry_COMMIT
case 0o40000:
objectType = gitalypb.TreeEntry_TREE
default:
objectType = gitalypb.TreeEntry_BLOB
}
return &gitalypb.TreeEntry{
CommitOid: commitOid,
Oid: oid,
Path: []byte(filepath.Join(rootPath, string(filename))),
Type: objectType,
Mode: int32(mode),
}, nil
}
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