# exc.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php
""" Module containing all exceptions thrown througout the git package, """

from gitdb.exc import *

class InvalidGitRepositoryError(Exception):
    """ Thrown if the given repository appears to have an invalid format.  """


class NoSuchPathError(OSError):
    """ Thrown if a path could not be access by the system. """


class GitCommandError(Exception):
    """ Thrown if execution of the git command fails with non-zero status code. """
    def __init__(self, command, status, stderr=None, stdout=None):
        self.stderr = stderr
        self.stdout = stdout
        self.status = status
        self.command = command
        
    def __str__(self):
        ret = "'%s' returned exit status %i: %s" % \
              (' '.join(str(i) for i in self.command), self.status, self.stderr)
        if self.stdout is not None:
            ret += "\nstdout: %s" % self.stdout
        return ret


class CheckoutError( Exception ):
    """Thrown if a file could not be checked out from the index as it contained
    changes.

    The .failed_files attribute contains a list of relative paths that failed
    to be checked out as they contained changes that did not exist in the index.

    The .failed_reasons attribute contains a string informing about the actual
    cause of the issue.

    The .valid_files attribute contains a list of relative paths to files that
    were checked out successfully and hence match the version stored in the
    index"""
    def __init__(self, message, failed_files, valid_files, failed_reasons):
        Exception.__init__(self, message)
        self.failed_files = failed_files
        self.failed_reasons = failed_reasons
        self.valid_files = valid_files

    def __str__(self):
        return Exception.__str__(self) + ":%s" % self.failed_files
        
        
class CacheError(Exception):
    """Base for all errors related to the git index, which is called cache internally"""

class UnmergedEntriesError(CacheError):
    """Thrown if an operation cannot proceed as there are still unmerged 
    entries in the cache"""
