From 0c8dbb559bb7d293d8ba331457df7c7316fd30db Mon Sep 17 00:00:00 2001
From: Owen Rumney <owen@owenrumney.co.uk>
Date: Mon, 24 Jan 2022 18:55:40 +0000
Subject: [PATCH] Support single line patches in the regex

---
 commenter/commenter.go | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/commenter/commenter.go b/commenter/commenter.go
index ac59c58..5dc7ab7 100644
--- a/commenter/commenter.go
+++ b/commenter/commenter.go
@@ -17,7 +17,7 @@ type Commenter struct {
 }
 
 var (
-	patchRegex     = regexp.MustCompile(`^@@.*[\+\-](\d+),(\d+).+?@@`)
+	patchRegex     = regexp.MustCompile(`^@@.*[\+\-](\d+)(?>\s[\+\-](\d)|,(\d+)).+?@@`)
 	commitRefRegex = regexp.MustCompile(".+ref=(.+)")
 )
 
@@ -201,11 +201,18 @@ func getCommitInfo(file *github.CommitFile) (cfi *commitFileInfo, err error) {
 		if len(groups) < 1 {
 			return nil, fmt.Errorf("the patch details for [%s] could not be resolved", *file.Filename)
 		}
-		hunkStart, err = strconv.Atoi(groups[0][1])
+
+		patchGroup := groups[0]
+		endPos := 2
+		if len(patchGroup) > 2 {
+			endPos = 3
+		}
+
+		hunkStart, err = strconv.Atoi(patchGroup[1])
 		if err != nil {
 			hunkStart = -1
 		}
-		hunkEnd, err = strconv.Atoi(groups[0][2])
+		hunkEnd, err = strconv.Atoi(patchGroup[endPos])
 		if err != nil {
 			hunkEnd = -1
 		}