run-tests: avoid set PYTHONUSERBASE environment variable to None According to python documentation, get_config_var can return None and it was during running mercurial tests under a virtual environment with the local built mercurial installed as a python package with `pip install -e .`. On the other hand, if mercurial is installed in the user library folders with `pip install --local -e .` the issue doesn't reproduce. The fallback is that it will just set an empty string and everything should work as before, according to https://www.python.org/dev/peps/pep-0370/: The path to the user base directory can be overwritten with the environment variable PYTHONUSERBASE. The default location is used when PYTHONUSERBASE is not set or empty.

templatefilters: fix doc of basename() os.path.basename() does NOT strip trailing slashes. > Note that the result of this function is different from the Unix basename > program; where basename for '/foo/bar/' returns 'bar', the basename() > function returns an empty string (''). https://docs.python.org/2.7/library/os.path.html#os.path.basename

identify: document -r. explicitly how to disable wdir scanning (issue5622)

lfs: add a comment to describe subtle local blobstore open() behavior

tests: make #testcase available as env var in test It can be useful for e.g. helper functions to behave differently depending on which test case is being executed. This patch helps with that by making the #testcase case available as a TESTCASE environment variable. Differential Revision: https://phab.mercurial-scm.org/D1816

archive: add support to specify hidden revs if directaccess config is set Differential Revision: https://phab.mercurial-scm.org/D1812

annotate: add support to specify hidden revs if directaccess config is set Differential Revision: https://phab.mercurial-scm.org/D1811

hgweb: stop adding strings to innerHTML of #graphnodes and #nodebgs (BC) There's nothing that uses this functionality anymore, since all HTML is generated server-side now. Changeset entries are still accessible in JS via DOM (that's how we set left padding), so it's still possible to do something unusual by overriding Graph.prototype.vertex().

spartan: make actual changeset entries have backgrounds on /graph This patch removes a separate container for backgrounds only and puts backgrounds on changeset elements themselves. This makes it so that JS code doesn't need to create background elements separately anymore. There's a bit of manipulating positions of elements: every changeset entry has a "fg" element that gets a higher z-index than <canvas> element. This prioritizes text information, so that even if it somehow gets close to the graph drawn on <canvas> (which has z-index of 5), it'll still be on top of it. This can happen if commit message has a long first line and browser window is narrow, for example.

gitweb: make actual changeset entries have backgrounds on /graph This patch removes a separate container for backgrounds only and puts backgrounds on changeset elements themselves. This makes it so that JS code doesn't need to create background elements separately anymore. There's a bit of manipulating positions of elements: every changeset entry has a "fg" element that gets a higher z-index than <canvas> element. This prioritizes text information, so that even if it somehow gets close to the graph drawn on <canvas> (which has z-index of 5), it'll still be on top of it. This can happen if commit message has a long first line and browser window is narrow, for example.