Anonymous

def yum_groupinstall(packages, excludelist = [], roles = " ".join([item.lower() for item in get_roles()])):        print '@Installing packages with groupinstall'        regex1 = re.compile('^Error: .+ conflicts with ')        excludes = ' '.join(["--exclude=%s" % exclude for exclude in excludelist])        (stdin, output) = os.popen4("/usr/bin/yum %s groupinstall %s" % (excludes, roles))        for line in output.readlines():                print line.strip()  ## TODO:  remove                if line.startswith('Error: ') or line.endswith(' is not signed') or regex1.match(line) != None:                        raise Exception        returndef yum_chunkinstall(packages, excludelist = [], chunksize = 15):        print '@Installing packages chunkwise'        excludes = ' '.join(["--exclude=%s" % exclude for exclude in excludelist])        regex1 = re.compile('^Error: .+ conflicts with ')        total = len(packages)/chunksize        for chunk in range(len(packages)/chunksize):                chunkstart = chunksize * chunk                chunkend = chunkstart + chunksize                print "@Installing piece %s of %s" % (chunk + 1, total)                piece = ' '.join(packages[chunkstart:chunkend])                print piece                messages = []                blocks = []                (stdin, output) = os.popen4("/usr/bin/yum -y %s install %s" % (excludes, piece))                for line in output.readlines():                        print "@%s" % line.strip()                        messages.append(line.strip())                        if line.startswith('Error: ') or line.endswith(' is not signed') or regex1.match(line) != None:                                print '@Chunkwise install failed'#                               try:  ## TODO:  reinstate try block                                print "@@A %s" % blocks  ## diagnostic                                newblocks = yum_pruneinstall(packages[chunkstart:chunkend], excludelist, messages)                                print "@@C %s" % newblocks  ## diagnostic                                blocks.extend(newblocks)                                print "@@D"  ## diagnostic                                blocks = list(set(blocks))                                print "@@E"  ## diagnostic                                excludelist.extend(blocks)                                print "@@F"  ## diagnostic                                excludelist = list(set(excludelist))                                print "@@G"  ## diagnostic#                               except:#                                       print "@Install failed for packages: %s" % piece#                                       blocks.extend(packages[chunkstart:chunkend])        update_log()        return blocksdef yum_pruneinstall(packages, blocks = [], messages = [], iteration = 0, maxiterations = 16):        print "@Pruning blocks (try %s of %s)" % (iteration, maxiterations)        regex1 = re.compile('^Error: .+ conflicts with ')        errored = False        piece = ' '.join(packages)        print piece        for line in messages:                if line.startswith('Error: Missing Dependency: '):  # Missing dependencies                        blocks.append(line.split()[-1])                        errored = True                elif line.endswith(' is not signed'):  # Unsigned packages                        blocks.append(line.split('.', 1)[0].split('-', 1)[-1].split()[1])                        errored = True                elif regex1.match(line) != None:  # Conflicting packages                        blocks.append(line.split()[1])                        errored = True        if not errored:                update_log()                print "@Piece succeeded!"  ## TODO:  remove                print "@@B %s" % blocks  ## diagnostic                return blocks        else:                if iteration == maxiterations:                        print '@Giving up'  ## TODO:  remove                        raise Exception                # Remove duplicates                blocks = list(set(blocks))                print "#Blocks:  %s" % blocks  ## TODO:  remove        # Run yum again and restart        excludes = ' '.join(['--exclude=%s' % block for block in blocks])        messages = []        (stdin, output) = os.popen4("/usr/bin/yum -y %s install %s" % (excludes, piece))        for line in output.readlines():                messages.append(line.strip())                print "@%s" % line.strip()  ## TODO:  remove        yum_pruneinstall(packages, blocks, messages, iteration + 1)