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extensions: ignore exceptions from an extension's `getversion()` method...
extensions: ignore exceptions from an extension's `getversion()` method This method is usually called when there's a stacktrace being generated, or with `hg version -v`. Raising another exception risks mangling the bug report info. I hit this issue when trying to add the method to the keyring extension to report the version of the extension and the underlying module, and ran into demandimport issues prior to py3.8. It seems like a wise thing to do anyway, though unfortunately there's no convenient `ui` object around to issue a warning. Use 'unknown' to signal that it tried to report a version and failed, unlike the default case of printing nothing. Differential Revision: https://phab.mercurial-scm.org/D10540
Matt Harbison -
r47829:55345152 stable
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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.

Notes for packagers

Mercurial ships a copy of the python-zstandard sources. This is used to provide support for zstd compression and decompression functionality. The module is not intended to be replaced by the plain python-zstandard nor is it intended to use a system zstd library. Patches can result in hard to diagnose errors and are explicitly discouraged as unsupported configuration.