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// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package git
import (
"fmt"
"strconv"
"strings"
"time"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
)
// Signature represents the Author, Committer or Tagger information.
type Signature struct {
Name string // the committer name, it can be anything
Email string // the committer email, it can be anything
When time.Time // the timestamp of the signature
}
func (s *Signature) String() string {
return fmt.Sprintf("%s <%s>", s.Name, s.Email)
}
// Decode decodes a byte array representing a signature to signature
func (s *Signature) Decode(b []byte) {
*s = *parseSignatureFromCommitLine(util.UnsafeBytesToString(b))
}
// Helper to get a signature from the commit line, which looks like:
//
// full name <user@example.com> 1378823654 +0200
//
// Haven't found the official reference for the standard format yet.
// This function never fails, if the "line" can't be parsed, it returns a default Signature with "zero" time.
func parseSignatureFromCommitLine(line string) *Signature {
sig := &Signature{}
s1, sx, ok1 := strings.Cut(line, " <")
s2, s3, ok2 := strings.Cut(sx, "> ")
if !ok1 || !ok2 {
sig.Name = line
return sig
}
sig.Name, sig.Email = s1, s2
if strings.Count(s3, " ") == 1 {
ts, tz, _ := strings.Cut(s3, " ")
seconds, _ := strconv.ParseInt(ts, 10, 64)
if tzTime, err := time.Parse("-0700", tz); err == nil {
sig.When = time.Unix(seconds, 0).In(tzTime.Location())
}
} else {
// the old gitea code tried to parse the date in a few different formats, but it's not clear why.
// according to public document, only the standard format "timestamp timezone" could be found, so drop other formats.
log.Error("suspicious commit line format: %q", line)
for _, fmt := range []string{ /*"Mon Jan _2 15:04:05 2006 -0700"*/ } {
if t, err := time.Parse(fmt, s3); err == nil {
sig.When = t
break
}
}
}
return sig
}
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