// Copyright 2023 Harness, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package api import ( "bytes" "strconv" "time" ) const ( // GitTimeLayout is the (default) time layout used by git. GitTimeLayout = "Mon Jan _2 15:04:05 2006 -0700" ) func NewSignatureFromCommitLine(line []byte) *Signature { emailStart := bytes.LastIndexByte(line, '<') emailEnd := bytes.LastIndexByte(line, '>') if emailStart == -1 || emailEnd == -1 || emailEnd < emailStart { return nil } sig := &Signature{ Identity: Identity{ Name: string(line[:emailStart-1]), Email: string(line[emailStart+1 : emailEnd]), }, } hasTime := emailEnd+2 < len(line) if !hasTime { return sig } // Check date format. firstChar := line[emailEnd+2] if firstChar >= 48 && firstChar <= 57 { idx := bytes.IndexByte(line[emailEnd+2:], ' ') if idx < 0 { return sig } timestring := string(line[emailEnd+2 : emailEnd+2+idx]) seconds, _ := strconv.ParseInt(timestring, 10, 64) sig.When = time.Unix(seconds, 0) idx += emailEnd + 3 if idx >= len(line) || idx+5 > len(line) { return sig } timezone := string(line[idx : idx+5]) tzhours, err1 := strconv.ParseInt(timezone[0:3], 10, 64) tzmins, err2 := strconv.ParseInt(timezone[3:], 10, 64) if err1 != nil || err2 != nil { return sig } if tzhours < 0 { tzmins *= -1 } tz := time.FixedZone("", int(tzhours*60*60+tzmins*60)) sig.When = sig.When.In(tz) } else { t, err := time.Parse(GitTimeLayout, string(line[emailEnd+2:])) if err != nil { return sig } sig.When = t } return sig }