Skip to content

Backport: Fix regex to support optional end line of old section in diff hunk #5097

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Oct 18, 2018
Merged

Backport: Fix regex to support optional end line of old section in diff hunk #5097

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 16 additions & 9 deletions models/git_diff.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -273,7 +273,7 @@ func (diff *Diff) NumFiles() int {
}

// Example: @@ -1,8 +1,9 @@ => [..., 1, 8, 1, 9]
var hunkRegex = regexp.MustCompile(`^@@ -([0-9]+),([0-9]+) \+([0-9]+)(,([0-9]+))? @@`)
var hunkRegex = regexp.MustCompile(`^@@ -(?P<beginOld>[0-9]+)(,(?P<endOld>[0-9]+))? \+(?P<beginNew>[0-9]+)(,(?P<endNew>[0-9]+))? @@`)

func isHeader(lof string) bool {
return strings.HasPrefix(lof, cmdDiffHead) || strings.HasPrefix(lof, "---") || strings.HasPrefix(lof, "+++")
Expand Down Expand Up @@ -311,21 +311,28 @@ func CutDiffAroundLine(originalDiff io.Reader, line int64, old bool, numbersOfLi
if len(hunk) > headerLines {
break
}
groups := hunkRegex.FindStringSubmatch(lof)
// A map with named groups of our regex to recognize them later more easily
submatches := hunkRegex.FindStringSubmatch(lof)
groups := make(map[string]string)
for i, name := range hunkRegex.SubexpNames() {
if i != 0 && name != "" {
groups[name] = submatches[i]
}
}
if old {
begin = com.StrTo(groups[1]).MustInt64()
end = com.StrTo(groups[2]).MustInt64()
begin = com.StrTo(groups["beginOld"]).MustInt64()
end = com.StrTo(groups["endOld"]).MustInt64()
// init otherLine with begin of opposite side
otherLine = com.StrTo(groups[3]).MustInt64()
otherLine = com.StrTo(groups["beginNew"]).MustInt64()
} else {
begin = com.StrTo(groups[3]).MustInt64()
if groups[5] != "" {
end = com.StrTo(groups[5]).MustInt64()
begin = com.StrTo(groups["beginNew"]).MustInt64()
if groups["endNew"] != "" {
end = com.StrTo(groups["endNew"]).MustInt64()
} else {
end = 0
}
// init otherLine with begin of opposite side
otherLine = com.StrTo(groups[1]).MustInt64()
otherLine = com.StrTo(groups["beginOld"]).MustInt64()
}
end += begin // end is for real only the number of lines in hunk
// lof is between begin and end
Expand Down