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upgrade: remove unnecessary `is None` check...
upgrade: remove unnecessary `is None` check `upgrade_engine.upgrade()` always return the `backuppath` value and there are not early returns. Hence I don't see how `backuppath` can be None. Adding extra unncessary safe checks hides unknown bugs. Hence removing it. Differential Revision: https://phab.mercurial-scm.org/D9675
Pulkit Goyal -
r46838:0ca98ed8 default
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Mercurial

Mercurial is a fast, easy to use, distributed revision control tool for software developers.

Basic install:

$ make            # see install targets
$ make install    # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg              # see help

Running without installing:

$ make local      # build for inplace usage
$ ./hg --version  # should show the latest version

See https://mercurial-scm.org/ for detailed installation instructions, platform-specific notes, and Mercurial user information.