Function parseDiffStat

git/api/diff.go:703–734

(stdout string)

	`\s*(\d+) files? changed(?:, (\d+) insertions?\(\+\))?(?:, (\d+) deletions?\(-\))?`)

func parseDiffStat(stdout string) (stat DiffShortStat, err error) {
	if len(stdout) == 0 || stdout == "\n" {
		return DiffShortStat{}, nil
	}
	groups := shortStatFormat.FindStringSubmatch(stdout)
	if len(groups) != 4 {
		return DiffShortStat{}, fmt.Errorf("unable to parse shortstat: %s groups: %s", stdout, groups)
	}

	stat.Files, err = strconv.Atoi(groups[1])
	if err != nil {
		return DiffShortStat{}, fmt.Errorf("unable to parse shortstat: %s. Error parsing NumFiles %w",
			stdout, err)
	}

	if len(groups[2]) != 0 {
		stat.Additions, err = strconv.Atoi(groups[2])
		if err != nil {
			return DiffShortStat{}, fmt.Errorf("unable to parse shortstat: %s. Error parsing NumAdditions %w",
				stdout, err)
		}
	}

	if len(groups[3]) != 0 {
		stat.Deletions, err = strconv.Atoi(groups[3])
		if err != nil {
			return DiffShortStat{}, fmt.Errorf("unable to parse shortstat: %s. Error parsing NumDeletions %w",
				stdout, err)
		}
	}
	return stat, nil
}

func parseDiffStderr(stderr *bytes.Buffer) error {
	errRaw := stderr.String() // assume there will never be a lot of output to stdout