pub fn parse_bisect_vars(out: &str) -> (Option<usize>, Option<usize>)Expand description
Parse git rev-list --bisect-vars output into
(revisions_left, steps).
This is plumbing git provides precisely so callers do not
reimplement the bisection arithmetic. An earlier attempt here
computed “revisions left” as count(rev-list bad ^good) - 1, which
is wrong and quietly so: for eight commits it said 6 where git says
3. Git does not report the size of the remaining range — it reports
the size of the worst-case half after the midpoint it just chose,
which is the bisection algorithm, not a subtraction. Showing a
number that disagrees with what git bisect prints in the same
terminal is worse than showing none.
The format is key='value' or key=value, one per line.