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Return the name of the version control backend if found at given
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Returns the correct repository URL and revision by parsing the given
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Normalize a URL for comparison by unquoting it and removing any trailing slash.
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Compare two repo URLs for identity, ignoring incidental differences.
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Takes the contents of the bundled text file that explains how to revert
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Called when installing or updating an editable package, takes the
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Switch the repo at ``dest`` to point to ``URL``.
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Update an already-existing repo to the given ``rev_options``.
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Prepare a location to receive a checkout/clone.
Return True if the location is ready for (and requires) a
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t � d S)N)rj )r �distr4 � find_tagsr r r r � s z"VersionControl.get_src_requirement)r, r: r; r) r# r rE rL r< rO r^ rd rf ri rl rn rq rr r� r� r r r )r r r= V s" : r= c C sF t j | � } | r+ | � j | | | � St j d | � | j � S)Nztcannot determine version of editable source in %s (is not SVN checkout, Git clone, Mercurial clone or Bazaar branch))r
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