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gitea/modules/git/tree_gogit.go
Adam Majer cbf923e87b
Abstract hash function usage (#28138)
Refactor Hash interfaces and centralize hash function. This will allow
easier introduction of different hash function later on.

This forms the "no-op" part of the SHA256 enablement patch.
2023-12-13 21:02:00 +00:00

99 lines
2.1 KiB
Go

// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
//go:build gogit
package git
import (
"io"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/object"
)
// Tree represents a flat directory listing.
type Tree struct {
ID ObjectID
ResolvedID ObjectID
repo *Repository
gogitTree *object.Tree
// parent tree
ptree *Tree
}
func (t *Tree) loadTreeObject() error {
gogitTree, err := t.repo.gogitRepo.TreeObject(plumbing.Hash(t.ID.RawValue()))
if err != nil {
return err
}
t.gogitTree = gogitTree
return nil
}
// ListEntries returns all entries of current tree.
func (t *Tree) ListEntries() (Entries, error) {
if t.gogitTree == nil {
err := t.loadTreeObject()
if err != nil {
return nil, err
}
}
entries := make([]*TreeEntry, len(t.gogitTree.Entries))
for i, entry := range t.gogitTree.Entries {
entries[i] = &TreeEntry{
ID: ParseGogitHash(entry.Hash),
gogitTreeEntry: &t.gogitTree.Entries[i],
ptree: t,
}
}
return entries, nil
}
// ListEntriesRecursiveWithSize returns all entries of current tree recursively including all subtrees
func (t *Tree) ListEntriesRecursiveWithSize() (Entries, error) {
if t.gogitTree == nil {
err := t.loadTreeObject()
if err != nil {
return nil, err
}
}
var entries []*TreeEntry
seen := map[plumbing.Hash]bool{}
walker := object.NewTreeWalker(t.gogitTree, true, seen)
for {
fullName, entry, err := walker.Next()
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
if seen[entry.Hash] {
continue
}
convertedEntry := &TreeEntry{
ID: ParseGogitHash(entry.Hash),
gogitTreeEntry: &entry,
ptree: t,
fullName: fullName,
}
entries = append(entries, convertedEntry)
}
return entries, nil
}
// ListEntriesRecursiveFast is the alias of ListEntriesRecursiveWithSize for the gogit version
func (t *Tree) ListEntriesRecursiveFast() (Entries, error) {
return t.ListEntriesRecursiveWithSize()
}