import optparse
import sys
import os
import shutil

import migrate
import wizard.deploy as wd
import wizard.shell as sh
from wizard import *

def massmigrate(argv, global_options, logger = None):
    usage = """usage: %prog massmigrate [ARGS] APPLICATION

Mass migrates an application to the new repository format.
Essentially equivalent to running '%prog migrate' on all
autoinstalls for a particular application found by parallel-find,
but with advanced reporting.

NOTE: --verbose implies --no-parallelize, as it results in
output going to stdout/stderr."""
    parser = WizardOptionParser(usage)
    parser.add_option("--no-parallelize", dest="no_parallelize", action="store_true",
            default=False, help="Turn off parallelization")
    parser.add_option("--dry-run", dest="dry_run", action="store_true",
            default=False, help="Print commands that would be run. Implies --no-parallelize")
    options, args, logger = parser.parse_all(argv, logger)
    if len(args) > 1:
        parser.error("too many arguments")
    elif not args:
        parser.error("must specify application to migrate")
    if options.verbose or options.dry_run:
        options.no_parallelize = True
    app = args[0]
    base_args = []
    if options.verbose: base_args.append("--verbose")
    if options.dry_run: base_args.append("--dry-run")
    deploys = []
    for line in wd.getInstallLines(global_options):
        try:
            deploy = wd.Deployment.parse(line)
        except wd.DeploymentParseError, wd.NoSuchApplication:
            continue
        name = deploy.getApplication().name
        if name != app: continue
        deploys.append(deploy)
    # parallelization code would go here
    for deploy in deploys:
        sub_argv = base_args + [deploy.location]
        logger.info("$ wizard migrate " + " ".join(sub_argv))
        migrate.migrate(sub_argv, global_options, logger)