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Mercurial has the ability to add new features through the use of
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extensions. Extensions may add new commands, add options to
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existing commands, change the default behavior of commands, or
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implement hooks.
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Extensions are not loaded by default for a variety of reasons:
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they can increase startup overhead; they may be meant for advanced
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usage only; they may provide potentially dangerous abilities (such
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as letting you destroy or modify history); they might not be ready
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for prime time; or they may alter some usual behaviors of stock
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Mercurial. It is thus up to the user to activate extensions as
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needed.
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To enable the "foo" extension, either shipped with Mercurial or in
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the Python search path, create an entry for it in your hgrc, like
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this::
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[extensions]
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foo =
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You may also specify the full path to an extension::
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[extensions]
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myfeature = ~/.hgext/myfeature.py
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To explicitly disable an extension enabled in an hgrc of broader
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scope, prepend its path with !::
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[extensions]
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# disabling extension bar residing in /path/to/extension/bar.py
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bar = !/path/to/extension/bar.py
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# ditto, but no path was supplied for extension baz
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baz = !
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