pub fn changed_lines(
repo: &Path,
base: &str,
) -> Result<BTreeMap<String, BTreeSet<u64>>>Expand description
The new-side lines each file gained in repo’s <base>...HEAD merge-base diff, keyed
by repo-relative path. Pinned against the caller’s git config — core.quotepath=off,
--no-ext-diff, forced a//b/ prefixes — so [new_side_path]’s b/ strip holds.