c08e42c47e
Close #20315 (fix the panic when parsing invalid input), Speed up #20231 (use ls-tree without size field) Introduce ListEntriesRecursiveFast (ls-tree without size) and ListEntriesRecursiveWithSize (ls-tree with size)
134 lines
3.2 KiB
Go
134 lines
3.2 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
//go:build !gogit
|
|
|
|
package git
|
|
|
|
import (
|
|
"io"
|
|
"math"
|
|
"strings"
|
|
)
|
|
|
|
// Tree represents a flat directory listing.
|
|
type Tree struct {
|
|
ID SHA1
|
|
ResolvedID SHA1
|
|
repo *Repository
|
|
|
|
// parent tree
|
|
ptree *Tree
|
|
|
|
entries Entries
|
|
entriesParsed bool
|
|
|
|
entriesRecursive Entries
|
|
entriesRecursiveParsed bool
|
|
}
|
|
|
|
// ListEntries returns all entries of current tree.
|
|
func (t *Tree) ListEntries() (Entries, error) {
|
|
if t.entriesParsed {
|
|
return t.entries, nil
|
|
}
|
|
|
|
if t.repo != nil {
|
|
wr, rd, cancel := t.repo.CatFileBatch(t.repo.Ctx)
|
|
defer cancel()
|
|
|
|
_, _ = wr.Write([]byte(t.ID.String() + "\n"))
|
|
_, typ, sz, err := ReadBatchLine(rd)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if typ == "commit" {
|
|
treeID, err := ReadTreeID(rd, sz)
|
|
if err != nil && err != io.EOF {
|
|
return nil, err
|
|
}
|
|
_, _ = wr.Write([]byte(treeID + "\n"))
|
|
_, typ, sz, err = ReadBatchLine(rd)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
if typ == "tree" {
|
|
t.entries, err = catBatchParseTreeEntries(t, rd, sz)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
t.entriesParsed = true
|
|
return t.entries, nil
|
|
}
|
|
|
|
// Not a tree just use ls-tree instead
|
|
for sz > math.MaxInt32 {
|
|
discarded, err := rd.Discard(math.MaxInt32)
|
|
sz -= int64(discarded)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
for sz > 0 {
|
|
discarded, err := rd.Discard(int(sz))
|
|
sz -= int64(discarded)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
}
|
|
|
|
stdout, _, runErr := NewCommand(t.repo.Ctx, "ls-tree", "-l", t.ID.String()).RunStdBytes(&RunOpts{Dir: t.repo.Path})
|
|
if runErr != nil {
|
|
if strings.Contains(runErr.Error(), "fatal: Not a valid object name") || strings.Contains(runErr.Error(), "fatal: not a tree object") {
|
|
return nil, ErrNotExist{
|
|
ID: t.ID.String(),
|
|
}
|
|
}
|
|
return nil, runErr
|
|
}
|
|
|
|
var err error
|
|
t.entries, err = parseTreeEntries(stdout, t)
|
|
if err == nil {
|
|
t.entriesParsed = true
|
|
}
|
|
|
|
return t.entries, err
|
|
}
|
|
|
|
// listEntriesRecursive returns all entries of current tree recursively including all subtrees
|
|
// extraArgs could be "-l" to get the size, which is slower
|
|
func (t *Tree) listEntriesRecursive(extraArgs ...string) (Entries, error) {
|
|
if t.entriesRecursiveParsed {
|
|
return t.entriesRecursive, nil
|
|
}
|
|
|
|
args := append([]string{"ls-tree", "-t", "-r"}, extraArgs...)
|
|
args = append(args, t.ID.String())
|
|
stdout, _, runErr := NewCommand(t.repo.Ctx, args...).RunStdBytes(&RunOpts{Dir: t.repo.Path})
|
|
if runErr != nil {
|
|
return nil, runErr
|
|
}
|
|
|
|
var err error
|
|
t.entriesRecursive, err = parseTreeEntries(stdout, t)
|
|
if err == nil {
|
|
t.entriesRecursiveParsed = true
|
|
}
|
|
|
|
return t.entriesRecursive, err
|
|
}
|
|
|
|
// ListEntriesRecursiveFast returns all entries of current tree recursively including all subtrees, no size
|
|
func (t *Tree) ListEntriesRecursiveFast() (Entries, error) {
|
|
return t.listEntriesRecursive()
|
|
}
|
|
|
|
// ListEntriesRecursiveWithSize returns all entries of current tree recursively including all subtrees, with size
|
|
func (t *Tree) ListEntriesRecursiveWithSize() (Entries, error) {
|
|
return t.listEntriesRecursive("--long")
|
|
}
|