localrepo: don't search from path All current callers already pass in the repo root. This normalizes things a bit. Now all repo types take a direct path to repo root and only the command line interface (or the dispatcher) searches from the current directory.

#!/bin/sh

hg init
touch a
hg add a
hg ci -m "a" -d "1000000 0"

echo 123 > b
hg add b
hg diff --nodates

hg diff --nodates -r tip

echo foo > a
hg diff --nodates

hg diff -r ""
hg diff -r tip -r ""

true