drone/git/parser/hunk.go
2023-11-15 10:15:32 +00:00

52 lines
1.3 KiB
Go

// 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 parser
import (
"regexp"
"strconv"
"github.com/harness/gitness/git/types"
)
var regExpHunkHeader = regexp.MustCompile(`^@@ -([0-9]+)(,([0-9]+))? \+([0-9]+)(,([0-9]+))? @@( (.+))?$`)
func ParseDiffHunkHeader(line string) (types.HunkHeader, bool) {
groups := regExpHunkHeader.FindStringSubmatch(line)
if groups == nil {
return types.HunkHeader{}, false
}
oldLine, _ := strconv.Atoi(groups[1])
oldSpan := 1
if groups[3] != "" {
oldSpan, _ = strconv.Atoi(groups[3])
}
newLine, _ := strconv.Atoi(groups[4])
newSpan := 1
if groups[6] != "" {
newSpan, _ = strconv.Atoi(groups[6])
}
return types.HunkHeader{
OldLine: oldLine,
OldSpan: oldSpan,
NewLine: newLine,
NewSpan: newSpan,
Text: groups[8],
}, true
}