Method processHunkStart

cmd/grv/fancy_diff_view.go:207–257

(lines []*diffLineData, hunkStartIndex int, currentFile string)

}

func (fancyDiffProcessor *fancyDiffProcessor) processHunkStart(lines []*diffLineData, hunkStartIndex int, currentFile string) (generatedLines []*diffLineData, err error) {
	hunkLine := lines[hunkStartIndex]
	matches := hunkStartRegex.FindStringSubmatch(hunkLine.line)
	if len(matches) != 5 {
		err = fmt.Errorf("Hunk start line didn't match expected format, matches: %v", matches)
		return
	}

	hunkStartLineNumber, err := strconv.Atoi(matches[3])
	if err != nil {
		err = fmt.Errorf("Failed to parse hunk start line number %v: %v", matches[3], err)
		return
	}

	var index int
	for index = hunkStartIndex + 1; index < len(lines); index++ {
		if lines[index].lineType == dltLineAdded || lines[index].lineType == dltLineRemoved {
			break
		}

		hunkStartLineNumber++
	}

	if index >= len(lines) {
		err = fmt.Errorf("Failed to find changes in hunk")
		return
	}

	hunkStartLineNumber = MaxInt(hunkStartLineNumber, 1)

	hunkParts := strings.Split(hunkLine.line, " @@")
	if len(hunkParts) != 2 {
		err = fmt.Errorf("Expected 2 hunk parts but got: %v", hunkParts)
		return
	}

	sections := []*diffLineSection{
		&diffLineSection{
			text:             fmt.Sprintf("@ %v:%v @", currentFile, hunkStartLineNumber),
			themeComponentID: CmpDiffviewDifflineHunkStart,
		},
		&diffLineSection{
			text:             hunkParts[1],
			themeComponentID: CmpDiffviewDifflineHunkHeader,
		},
	}

	generatedLines = append(generatedLines, newSectionedDiffLineData(sections, dltHunkStart))

	return
}

func (fancyDiffProcessor *fancyDiffProcessor) highlightChanges(lines []*diffLineData) {
	for lineIndex := 0; lineIndex < len(lines); lineIndex++ {