forked from gitea/gitea
118 lines
2.5 KiB
Go
118 lines
2.5 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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// +build !gogit
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package git
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import (
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"io"
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"math"
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"strings"
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)
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// Tree represents a flat directory listing.
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type Tree struct {
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ID SHA1
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ResolvedID SHA1
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repo *Repository
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// parent tree
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ptree *Tree
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entries Entries
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entriesParsed bool
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entriesRecursive Entries
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entriesRecursiveParsed bool
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}
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// ListEntries returns all entries of current tree.
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func (t *Tree) ListEntries() (Entries, error) {
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if t.entriesParsed {
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return t.entries, nil
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}
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if t.repo != nil {
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wr, rd, cancel := t.repo.CatFileBatch()
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defer cancel()
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_, _ = wr.Write([]byte(t.ID.String() + "\n"))
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_, typ, sz, err := ReadBatchLine(rd)
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if err != nil {
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return nil, err
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}
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if typ == "commit" {
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treeID, err := ReadTreeID(rd, sz)
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if err != nil && err != io.EOF {
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return nil, err
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}
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_, _ = wr.Write([]byte(treeID + "\n"))
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_, typ, sz, err = ReadBatchLine(rd)
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if err != nil {
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return nil, err
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}
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}
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if typ == "tree" {
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t.entries, err = catBatchParseTreeEntries(t, rd, sz)
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if err != nil {
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return nil, err
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}
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t.entriesParsed = true
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return t.entries, nil
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}
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// Not a tree just use ls-tree instead
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for sz > math.MaxInt32 {
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discarded, err := rd.Discard(math.MaxInt32)
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sz -= int64(discarded)
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if err != nil {
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return nil, err
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}
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}
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for sz > 0 {
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discarded, err := rd.Discard(int(sz))
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sz -= int64(discarded)
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if err != nil {
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return nil, err
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}
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}
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}
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stdout, err := NewCommand("ls-tree", "-l", t.ID.String()).RunInDirBytes(t.repo.Path)
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if err != nil {
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if strings.Contains(err.Error(), "fatal: Not a valid object name") || strings.Contains(err.Error(), "fatal: not a tree object") {
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return nil, ErrNotExist{
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ID: t.ID.String(),
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}
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}
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return nil, err
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}
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t.entries, err = parseTreeEntries(stdout, t)
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if err == nil {
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t.entriesParsed = true
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}
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return t.entries, err
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}
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// ListEntriesRecursive returns all entries of current tree recursively including all subtrees
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func (t *Tree) ListEntriesRecursive() (Entries, error) {
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if t.entriesRecursiveParsed {
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return t.entriesRecursive, nil
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}
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stdout, err := NewCommand("ls-tree", "-t", "-l", "-r", t.ID.String()).RunInDirBytes(t.repo.Path)
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if err != nil {
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return nil, err
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}
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t.entriesRecursive, err = parseTreeEntries(stdout, t)
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if err == nil {
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t.entriesRecursiveParsed = true
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}
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return t.entriesRecursive, err
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}
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