mirror of https://github.com/go-gitea/gitea
Git with a cup of tea, painless self-hosted git service
Mirror for internal git.with.parts use
https://git.with.parts
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
1.9 KiB
68 lines
1.9 KiB
// Copyright 2024 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package git
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/modules/optional"
|
|
)
|
|
|
|
var sepSpace = []byte{' '}
|
|
|
|
type LsTreeEntry struct {
|
|
ID ObjectID
|
|
EntryMode EntryMode
|
|
Name string
|
|
Size optional.Option[int64]
|
|
}
|
|
|
|
func parseLsTreeLine(line []byte) (*LsTreeEntry, error) {
|
|
// expect line to be of the form:
|
|
// <mode> <type> <sha> <space-padded-size>\t<filename>
|
|
// <mode> <type> <sha>\t<filename>
|
|
|
|
var err error
|
|
posTab := bytes.IndexByte(line, '\t')
|
|
if posTab == -1 {
|
|
return nil, fmt.Errorf("invalid ls-tree output (no tab): %q", line)
|
|
}
|
|
|
|
entry := new(LsTreeEntry)
|
|
|
|
entryAttrs := line[:posTab]
|
|
entryName := line[posTab+1:]
|
|
|
|
entryMode, entryAttrs, _ := bytes.Cut(entryAttrs, sepSpace)
|
|
_ /* entryType */, entryAttrs, _ = bytes.Cut(entryAttrs, sepSpace) // the type is not used, the mode is enough to determine the type
|
|
entryObjectID, entryAttrs, _ := bytes.Cut(entryAttrs, sepSpace)
|
|
if len(entryAttrs) > 0 {
|
|
entrySize := entryAttrs // the last field is the space-padded-size
|
|
size, _ := strconv.ParseInt(strings.TrimSpace(string(entrySize)), 10, 64)
|
|
entry.Size = optional.Some(size)
|
|
}
|
|
|
|
entry.EntryMode, err = ParseEntryMode(string(entryMode))
|
|
if err != nil || entry.EntryMode == EntryModeNoEntry {
|
|
return nil, fmt.Errorf("invalid ls-tree output (invalid mode): %q, err: %w", line, err)
|
|
}
|
|
|
|
entry.ID, err = NewIDFromString(string(entryObjectID))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("invalid ls-tree output (invalid object id): %q, err: %w", line, err)
|
|
}
|
|
|
|
if len(entryName) > 0 && entryName[0] == '"' {
|
|
entry.Name, err = strconv.Unquote(string(entryName))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("invalid ls-tree output (invalid name): %q, err: %w", line, err)
|
|
}
|
|
} else {
|
|
entry.Name = string(entryName)
|
|
}
|
|
return entry, nil
|
|
}
|
|
|