forgejo/modules/git/tree_nogogit.go
zeripath 01087e9eef
Make Requests Processes and create process hierarchy. Associate OpenRepository with context. ()
This PR registers requests with the process manager and manages hierarchy within the processes.

Git repos are then associated with a context, (usually the request's context) - with sub commands using this context as their base context.

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-11-30 20:06:32 +00:00

118 lines
2.5 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
// +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, err := NewCommand("ls-tree", "-l", t.ID.String()).RunInDirBytes(t.repo.Path)
if err != nil {
if strings.Contains(err.Error(), "fatal: Not a valid object name") || strings.Contains(err.Error(), "fatal: not a tree object") {
return nil, ErrNotExist{
ID: t.ID.String(),
}
}
return nil, err
}
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
func (t *Tree) ListEntriesRecursive() (Entries, error) {
if t.entriesRecursiveParsed {
return t.entriesRecursive, nil
}
stdout, err := NewCommand("ls-tree", "-t", "-l", "-r", t.ID.String()).RunInDirBytes(t.repo.Path)
if err != nil {
return nil, err
}
t.entriesRecursive, err = parseTreeEntries(stdout, t)
if err == nil {
t.entriesRecursiveParsed = true
}
return t.entriesRecursive, err
}