# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 1628160816 -7200
# Node ID 23921bc857b5afb02628457a2e17281878d652a7
# Parent  bc74cb9a8e408f1bc7f25d02609c16ebf2074bab
subrepo: compare normalised vfs path

Otherwise the realpath call can turn `/` into `\` on windows confusing the
check.

(We probably needs this in more location)

Differential Revision: https://phab.mercurial-scm.org/D11259

diff -r bc74cb9a8e40 -r 23921bc857b5 mercurial/subrepo.py
--- a/mercurial/subrepo.py	Thu Aug 05 18:25:35 2021 +0200
+++ b/mercurial/subrepo.py	Thu Aug 05 12:53:36 2021 +0200
@@ -458,12 +458,14 @@
         create = allowcreate and not r.wvfs.exists(b'%s/.hg' % path)
         # repository constructor does expand variables in path, which is
         # unsafe since subrepo path might come from untrusted source.
-        if os.path.realpath(util.expandpath(root)) != root:
+        norm_root = os.path.normcase(root)
+        real_root = os.path.normcase(os.path.realpath(util.expandpath(root)))
+        if real_root != norm_root:
             raise error.Abort(
                 _(b'subrepo path contains illegal component: %s') % path
             )
         self._repo = hg.repository(r.baseui, root, create=create)
-        if self._repo.root != root:
+        if os.path.normcase(self._repo.root) != os.path.normcase(root):
             raise error.ProgrammingError(
                 b'failed to reject unsafe subrepo '
                 b'path: %s (expanded to %s)' % (root, self._repo.root)