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Viewing changes to bzrlib/errors.py

  • Committer: Andrew Bennetts
  • Date: 2008-07-25 06:42:08 UTC
  • mto: This revision was merged to the branch mainline in revision 3581.
  • Revision ID: andrew.bennetts@canonical.com-20080725064208-ui70gluukdypd4y9
Cherry-pick TipChangeRejected changes from pre-branch-tip-changed-hook loom.

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Lines of Context:
bzrlib/errors.py
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            for key, value in kwds.items():
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                setattr(self, key, value)
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    def __str__(self):
 
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    def _format(self):
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        s = getattr(self, '_preformatted_string', None)
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        if s is not None:
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            # contains a preformatted message; must be cast to plain str
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                s = fmt % d
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                # __str__() should always return a 'str' object
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                # never a 'unicode' object.
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                if isinstance(s, unicode):
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                    return s.encode('utf8')
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                return s
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        except (AttributeError, TypeError, NameError, ValueError, KeyError), e:
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            return 'Unprintable exception %s: dict=%r, fmt=%r, error=%r' \
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                   getattr(self, '_fmt', None),
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                   e)
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    def __unicode__(self):
 
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        u = self._format()
 
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        if isinstance(u, str):
 
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            # Try decoding the str using the default encoding.
 
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            u = unicode(u)
 
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        return u
 
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    def __str__(self):
 
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        s = self._format()
 
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        if isinstance(s, unicode):
 
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            return s.encode('utf8')
 
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        return s
 
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    def _get_format_string(self):
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        """Return format string for this exception or None"""
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        fmt = getattr(self, '_fmt', None)
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    # are not intended to be caught anyway.  UI code need not subclass
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    # BzrCommandError, and non-UI code should not throw a subclass of
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    # BzrCommandError.  ADHB 20051211
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    def __init__(self, msg):
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        # Object.__str__() must return a real string
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        # returning a Unicode string is a python error.
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        if isinstance(msg, unicode):
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            self.msg = msg.encode('utf8')
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        else:
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            self.msg = msg
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    def __str__(self):
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        return self.msg
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class NotWriteLocked(BzrError):
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    def __init__(self, unknowns):
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        BzrError.__init__(self, unknowns_str=", ".join(unknowns))
 
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class HookFailed(BzrError):
 
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    """Raised when a pre_change_branch_tip hook function fails anything other
 
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    than TipChangeRejected.
 
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    """
 
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    _fmt = ("Hook '%(hook_name)s' during %(hook_stage)s failed:\n"
 
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            "%(traceback_text)s%(exc_value)s")
 
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    def __init__(self, hook_stage, hook_name, exc_info):
 
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        import traceback
 
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        self.hook_stage = hook_stage
 
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        self.hook_name = hook_name
 
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        self.exc_info = exc_info
 
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        self.exc_type = exc_info[0]
 
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        self.exc_value = exc_info[1]
 
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        self.exc_tb = exc_info[2]
 
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        self.traceback_text = ''.join(traceback.format_tb(self.exc_tb))
 
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class TipChangeRejected(BzrError):
 
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    """A pre_change_branch_tip hook function may raise this to cleanly and
 
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    explicitly abort a change to a branch tip.
 
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    """
 
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    _fmt = u"Tip change rejected: %(msg)s"
 
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    def __init__(self, msg):
 
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        self.msg = msg
 
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