Make run-tests.py work when invoked outside of tests.
This makes it usable for unbundled extensions.
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -134,7 +134,8 @@ def install_hg():
vlog("# Performing temporary installation of HG")
installerrs = os.path.join("tests", "install.err")
- os.chdir("..") # Get back to hg root
+ # Run installer in hg root
+ os.chdir(os.path.join(os.path.dirname(sys.argv[0]), '..'))
cmd = ('%s setup.py clean --all'
' install --force --home="%s" --install-lib="%s"'
' --install-scripts="%s" >%s 2>&1'