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S( s@ Export the Git repository at the url to the destination locations -exports pip-R
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c C@ s_ | j | � } d | } | | k r0 | | g S| | k rG | | g St j d | � | Sd S( s� Check the revision options before checkout to compensate that tags
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Returns the SHA1 of the branch or tag if found.
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Compare the current sha to the ref. ref may be a branch or tag name,
but current rev will always point to a sha. This means that a branch
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against exact shas.
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refs/tags/N( R] t NoneR^ R R_ R` ( R R6 t rvR[ R\ t ref_name( ( s/ /usr/lib/python2.7/site-packages/pip/vcs/git.pyR9 � s c C@ s� | j d d g d t d | �j � } t j j | � sQ t j j | | � } n t j j | d � } | } x] t j j t j j | d � � s� | } t j j | � } | | k ro t j
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| | � S( s: Return the relative path of setup.py to the git repo root.s rev-parses --git-dirR' R2 s ..s setup.pysG Could not find setup.py for directory %s (tried all parent directories)N( R* R+ RR t osR t isabsR- t existst dirnameR: R; Rd R t relpath( R R6 t git_dirt root_dirt
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Prefixes stub URLs like 'user@hostname:user/repo.git' with 'ssh://'.
That's required because although they use SSH they sometimes doesn't
work with a ssh:// scheme (e.g. Github). But we need a scheme for
parsing. Hence we remove it again afterwards and return it as a stub.
s ://s file:s git+s
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