pub fn git_diff_stat_between(
path: &Path,
base: &str,
head: &str,
max_lines: usize,
) -> Result<String>Expand description
Shell out to git diff --stat <base>..<head> inside path. The
output is truncated to max_lines lines so a sprawling diff stat
doesn’t blow up the PR body (issue #84: 30-line cap by convention).