mirror of
https://github.com/go-gitea/gitea
synced 2024-12-21 11:14:39 +01:00
108 lines
2.6 KiB
Go
108 lines
2.6 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.
|
|
|
|
package git
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"io"
|
|
"strings"
|
|
|
|
"github.com/go-git/go-git/v5/plumbing"
|
|
)
|
|
|
|
// CommitFromReader will generate a Commit from a provided reader
|
|
// We will need this to interpret commits from cat-file
|
|
func CommitFromReader(gitRepo *Repository, sha plumbing.Hash, reader io.Reader) (*Commit, error) {
|
|
commit := &Commit{
|
|
ID: sha,
|
|
}
|
|
|
|
payloadSB := new(strings.Builder)
|
|
signatureSB := new(strings.Builder)
|
|
messageSB := new(strings.Builder)
|
|
message := false
|
|
pgpsig := false
|
|
|
|
scanner := bufio.NewScanner(reader)
|
|
// Split by '\n' but include the '\n'
|
|
scanner.Split(func(data []byte, atEOF bool) (advance int, token []byte, err error) {
|
|
if atEOF && len(data) == 0 {
|
|
return 0, nil, nil
|
|
}
|
|
if i := bytes.IndexByte(data, '\n'); i >= 0 {
|
|
// We have a full newline-terminated line.
|
|
return i + 1, data[0 : i+1], nil
|
|
}
|
|
// If we're at EOF, we have a final, non-terminated line. Return it.
|
|
if atEOF {
|
|
return len(data), data, nil
|
|
}
|
|
// Request more data.
|
|
return 0, nil, nil
|
|
})
|
|
|
|
for scanner.Scan() {
|
|
line := scanner.Bytes()
|
|
if pgpsig {
|
|
if len(line) > 0 && line[0] == ' ' {
|
|
_, _ = signatureSB.Write(line[1:])
|
|
continue
|
|
} else {
|
|
pgpsig = false
|
|
}
|
|
}
|
|
|
|
if !message {
|
|
// This is probably not correct but is copied from go-gits interpretation...
|
|
trimmed := bytes.TrimSpace(line)
|
|
if len(trimmed) == 0 {
|
|
message = true
|
|
_, _ = payloadSB.Write(line)
|
|
continue
|
|
}
|
|
|
|
split := bytes.SplitN(trimmed, []byte{' '}, 2)
|
|
var data []byte
|
|
if len(split) > 1 {
|
|
data = split[1]
|
|
}
|
|
|
|
switch string(split[0]) {
|
|
case "tree":
|
|
commit.Tree = *NewTree(gitRepo, plumbing.NewHash(string(data)))
|
|
_, _ = payloadSB.Write(line)
|
|
case "parent":
|
|
commit.Parents = append(commit.Parents, plumbing.NewHash(string(data)))
|
|
_, _ = payloadSB.Write(line)
|
|
case "author":
|
|
commit.Author = &Signature{}
|
|
commit.Author.Decode(data)
|
|
_, _ = payloadSB.Write(line)
|
|
case "committer":
|
|
commit.Committer = &Signature{}
|
|
commit.Committer.Decode(data)
|
|
_, _ = payloadSB.Write(line)
|
|
case "gpgsig":
|
|
_, _ = signatureSB.Write(data)
|
|
_ = signatureSB.WriteByte('\n')
|
|
pgpsig = true
|
|
}
|
|
} else {
|
|
_, _ = messageSB.Write(line)
|
|
}
|
|
}
|
|
commit.CommitMessage = messageSB.String()
|
|
_, _ = payloadSB.WriteString(commit.CommitMessage)
|
|
commit.Signature = &CommitGPGSignature{
|
|
Signature: signatureSB.String(),
|
|
Payload: payloadSB.String(),
|
|
}
|
|
if len(commit.Signature.Signature) == 0 {
|
|
commit.Signature = nil
|
|
}
|
|
|
|
return commit, scanner.Err()
|
|
}
|