tests: add a test demonstrating issue5731 If origbackups are in use, a symlink to a valid directory is backed up, and an update is made that attempts to backup a file or link over that symlink, we abort with a bad error message instead of successfully updating. Differential Revision: https://phab.mercurial-scm.org/D1310

cmdutil: create dirs for templated cat file output Previously, the caller was responsible for creating the directory structure of files written out using a path template. This is onerous, especially if the exact filenames are not known upfront, but are being accessed via a matcher. This patch changes things so that hg will attempt to create the appropriate directories before writing the output file. Differential Revision: https://phab.mercurial-scm.org/D1332

cat: test output path behvaior when target path does not exist In the next patch, we will change the behavior of the cat command to create output file parent directories before attempting to write the output file. This patch documents the current unfortunate behavior. Differential Revision: https://phab.mercurial-scm.org/D1331

py3: handle keyword arguments in hgext/shelve.py Differential Revision: https://phab.mercurial-scm.org/D1324

py3: handle keyword arguments in hgext/uncommit.py Differential Revision: https://phab.mercurial-scm.org/D1323

py3: handle keyword arguments in hgext/releasenotes.py Differential Revision: https://phab.mercurial-scm.org/D1322