image.py

        f_gsrc.close()
        f_src.close()
        # checking download size
        if self.size != f_gsrc.read_size:
            raise Exception("Downloading payload %s failed: Invalid size" % self.name)
        if self.md5 != f_gsrc.md5:
            raise Exception("Downloading payload %s failed: Invalid MD5" % self.name)
        # settings file orginal rights
        istools.chrights(dest, self.uid, self.gid, self.mode, self.mtime)


class Changelog(dict):
    '''
    Object representing a changelog in memory
    '''
    def __init__(self, data):
        self.verbatim = ""
        self.load(data)

    def load(self, data):
        '''
        Load a changelog file
        '''
        version = None
        lines = data.split("\n")
        for line in lines:
            # ignore empty lines
            if len(line.strip()) == 0:
                continue
            # ignore comments
            if line.lstrip().startswith("#"):
                continue
            # try to match a new version
            m = re.match("\[(\d+)\]", line.lstrip())
            if m is not None:
                version = int(m.group(1))
                self[version] = []
                continue
            # if line are out of a version => invalid format
            if version is None:
                raise Exception("Invalid format: Line outside version")
            # add line to version changelog
            self[version] += [line]
        # save original
        self.verbatim = data

    def show(self, version=None, verbose=False):
        '''
        Show changelog for a given version or all
        '''
        out('#light##yellow#Changelog:#reset#')
        # if no version take the hightest
        if version is None:
            version = max(self)
        # display asked version
        if version in self:
            self._show_version(version)
        # display all version in verbose mode
        if verbose:
            for ver in sorted((k for k in self if k < version), reverse=True):
                self._show_version(ver)

    def _show_version(self, version):
        '''
        Display a version content
        '''
        out('  #yellow#Version:#reset# %s' % version)
        for line in self[version]:
            out("    %s" % line)