mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-16 15:44:46 +01:00
ae7e6cd474
* Reduce calls to git cat-file -s There are multiple places where there are repeated calls to git cat-file -s due to the blobs not being created with their size. Through judicious use of git ls-tree -l and slight adjustments to the indexer code we can avoid a lot of these calls. * simplify by always expecting the long format * Also always set the sized field and tell the indexer the update is sized
94 lines
2.7 KiB
Go
94 lines
2.7 KiB
Go
// Copyright 2018 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.
|
|
|
|
// +build gogit
|
|
|
|
package git
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/go-git/go-git/v5/plumbing/filemode"
|
|
"github.com/go-git/go-git/v5/plumbing/object"
|
|
)
|
|
|
|
// ParseTreeEntries parses the output of a `git ls-tree -l` command.
|
|
func ParseTreeEntries(data []byte) ([]*TreeEntry, error) {
|
|
return parseTreeEntries(data, nil)
|
|
}
|
|
|
|
func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
|
|
entries := make([]*TreeEntry, 0, 10)
|
|
for pos := 0; pos < len(data); {
|
|
// expect line to be of the form "<mode> <type> <sha> <space-padded-size>\t<filename>"
|
|
entry := new(TreeEntry)
|
|
entry.gogitTreeEntry = &object.TreeEntry{}
|
|
entry.ptree = ptree
|
|
if pos+6 > len(data) {
|
|
return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
|
|
}
|
|
switch string(data[pos : pos+6]) {
|
|
case "100644":
|
|
entry.gogitTreeEntry.Mode = filemode.Regular
|
|
pos += 12 // skip over "100644 blob "
|
|
case "100755":
|
|
entry.gogitTreeEntry.Mode = filemode.Executable
|
|
pos += 12 // skip over "100755 blob "
|
|
case "120000":
|
|
entry.gogitTreeEntry.Mode = filemode.Symlink
|
|
pos += 12 // skip over "120000 blob "
|
|
case "160000":
|
|
entry.gogitTreeEntry.Mode = filemode.Submodule
|
|
pos += 14 // skip over "160000 object "
|
|
case "040000":
|
|
entry.gogitTreeEntry.Mode = filemode.Dir
|
|
pos += 12 // skip over "040000 tree "
|
|
default:
|
|
return nil, fmt.Errorf("unknown type: %v", string(data[pos:pos+6]))
|
|
}
|
|
|
|
if pos+40 > len(data) {
|
|
return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
|
|
}
|
|
id, err := NewIDFromString(string(data[pos : pos+40]))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Invalid ls-tree output: %v", err)
|
|
}
|
|
entry.ID = id
|
|
entry.gogitTreeEntry.Hash = id
|
|
pos += 41 // skip over sha and trailing space
|
|
|
|
end := pos + bytes.IndexByte(data[pos:], '\t')
|
|
if end < pos {
|
|
return nil, fmt.Errorf("Invalid ls-tree -l output: %s", string(data))
|
|
}
|
|
entry.size, _ = strconv.ParseInt(strings.TrimSpace(string(data[pos:end])), 10, 64)
|
|
entry.sized = true
|
|
|
|
pos = end + 1
|
|
|
|
end = pos + bytes.IndexByte(data[pos:], '\n')
|
|
if end < pos {
|
|
return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
|
|
}
|
|
|
|
// In case entry name is surrounded by double quotes(it happens only in git-shell).
|
|
if data[pos] == '"' {
|
|
entry.gogitTreeEntry.Name, err = strconv.Unquote(string(data[pos:end]))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Invalid ls-tree output: %v", err)
|
|
}
|
|
} else {
|
|
entry.gogitTreeEntry.Name = string(data[pos:end])
|
|
}
|
|
|
|
pos = end + 1
|
|
entries = append(entries, entry)
|
|
}
|
|
return entries, nil
|
|
}
|