import os
+import os.path
import shutil
import logging
-import errno
-import sys
-from wizard import deploy
-from wizard import shell
-from wizard import util
-from wizard.command import _base
+from wizard import app, command, deploy, shell, util
-def main(argv, global_options):
- options, args = parse_args(argv)
- dir = args[0]
+def main(argv, baton):
+ options, args = parse_args(argv, baton)
+ dir = os.path.abspath(args[0]) if args else os.getcwd()
+ shell.drop_priviledges(dir, options.log_file)
+ util.chdir(dir)
- logging.debug("uid is %d" % os.getuid())
+ sh = shell.Shell(options.dry_run)
- _base.chdir(dir)
- check_if_already_migrated(options)
+ logging.info("Migrating %s" % dir)
+ logging.debug("uid is %d" % os.getuid())
- version = calculate_version()
- repo = version.application.getRepository()
- tag = version.getScriptsTag()
+ deployment = deploy.ProductionCopy(".")
os.unsetenv("GIT_DIR") # prevent some perverse errors
- sh = shell.Shell(options.dry_run)
- check_if_tag_exists(sh, repo, tag)
- make_repository(sh, options, repo, tag)
+ try:
+ deployment.verify()
+ raise AlreadyMigratedError(deployment.location)
+ except deploy.NotAutoinstallError:
+ # Previously, this was a fatal error, but now let's try
+ # a little harder.
+ # XXX: The user still has to tell us what application ; a more
+ # user friendly thing to do is figure it out automatically
+ if not options.force_app:
+ raise
+ # actual version number will get overwritten shortly
+ deployment.setAppVersion(app.ApplicationVersion.make(options.force_app, "unknown"))
+ except deploy.NotMigratedError:
+ # LEGACY
+ pass
+ except (deploy.CorruptedAutoinstallError, AlreadyMigratedError):
+ if not options.force:
+ raise
+
+ if options.force_version:
+ deployment.setAppVersion(deployment.application.makeVersion(options.force_version))
+ else:
+ try:
+ deployment.verifyVersion()
+ except deploy.VersionMismatchError as e:
+ # well, we'll use that then
+ deployment.setAppVersion(deployment.application.makeVersion(str(e.real_version)))
- os.rename(".scripts-version", ".scripts/old-version") # archive
+ deployment.verifyTag(options.srv_path)
-def parse_args(argv):
+ repo = deployment.application.repository(options.srv_path)
+ tag = deployment.app_version.wizard_tag
+ try:
+ sh.call("git", "--git-dir=%s" % repo, "rev-parse", tag)
+ except shell.CallError:
+ raise UnsupportedVersion(deployment.version)
+
+ with util.LockDirectory(".wizard-migrate-lock"):
+ try:
+ if options.force:
+ perform_force(options)
+ make_repository(sh, options, repo, tag)
+ check_variables(deployment, options)
+ except KeyboardInterrupt:
+ # revert it; barring zany race conditions this is safe
+ if os.path.exists(".wizard"):
+ shutil.rmtree(".wizard")
+ if os.path.exists(".git"):
+ shutil.rmtree(".git")
+
+def parse_args(argv, baton):
usage = """usage: %prog migrate [ARGS] DIR
Migrates a directory to our Git-based autoinstall format.
Performs basic sanity checking and intelligently determines
what repository and tag to use.
-This command is meant to be run as the owner of the install
-it is upgrading (see the scripts AFS kernel patch). Do
-NOT run this command as root."""
- parser = _base.WizardOptionParser(usage)
+This command is meant to be run as the owner of the install it is
+upgrading . Do NOT run this command as root."""
+ parser = command.WizardOptionParser(usage)
+ baton.push(parser, "srv_path")
parser.add_option("--dry-run", dest="dry_run", action="store_true",
default=False, help="Prints would would be run without changing anything")
parser.add_option("--force", "-f", dest="force", action="store_true",
- default=False, help="If .git or .scripts directory already exists, delete them and migrate")
+ default=False, help="If .git or .wizard directory already exists, "
+ "delete them and migrate")
+ parser.add_option("--force-version", dest="force_version",
+ default=None, help="If .scripts-version is corrupted or non-existent, explicitly specify "
+ "a version to migrate to.")
+ parser.add_option("--force-app", dest="force_app",
+ default=None, help="If .scripts-version is corrupted or non-existent, explicitly specify "
+ "an application to migrate to.")
options, args = parser.parse_all(argv)
if len(args) > 1:
parser.error("too many arguments")
- elif not args:
- parser.error("must specify directory")
return (options, args)
-def check_if_already_migrated(options):
- if os.path.isdir(".git") or os.path.isdir(".scripts"):
- if not options.force:
- raise AlreadyMigratedError(dir)
- else:
- if os.path.isdir(".git"):
- logging.warning("Force removing .git directory")
- if not options.dry_run: shutil.rmtree(".git")
- if os.path.isdir(".scripts"):
- logging.warning("Force removing .scripts directory")
- if not options.dry_run: shutil.rmtree(".scripts")
-
-def calculate_version():
- try:
- d = deploy.Deployment.fromDir(".")
- return d.getAppVersion()
- except IOError as e:
- if e.errno == errno.ENOENT:
- raise NotAutoinstallError(dir)
- else: raise e
-
-def check_if_tag_exists(sh, repo, tag):
- # check if the version we're trying to convert exists. We assume
- # a convention here, namely, v1.2.3-scripts is what we want. If
- # you broke the convention... shame on you.
- try:
- sh.call("git", "--git-dir", repo, "rev-parse", tag)
- except shell.CallError:
- raise NoTagError(version)
+def perform_force(options):
+ has_git = os.path.isdir(".git")
+ has_wizard = os.path.isdir(".wizard")
+
+ if has_git:
+ logging.warning("Force removing .git directory")
+ if not options.dry_run: backup = util.safe_unlink(".git")
+ logging.info(".git backed up to %s" % backup)
+ if has_wizard:
+ logging.warning("Force removing .wizard directory")
+ if not options.dry_run: backup = util.safe_unlink(".wizard")
+ logging.info(".wizard backed up to %s" % backup)
def make_repository(sh, options, repo, tag):
sh.call("git", "init") # create repository
alternates = open(file, "w")
alternates.write(data)
alternates.close()
+ htaccess = open(".git/.htaccess", "w")
+ htaccess.write("Deny from all\n")
+ htaccess.close()
else:
logging.info("# create %s containing \"%s\"" % (file, data))
- # configure our remote (this is merely for convenience; wizard scripts
+ logging.info('# create .htaccess containing "Deny from all"')
+ # configure our remote (this is merely for convenience; wizard
# will not rely on this)
sh.call("git", "remote", "add", "origin", repo)
# configure what would normally be set up on a 'git clone' for consistency
sh.call("git", "fetch", "origin")
# soft reset to our tag
sh.call("git", "reset", tag, "--")
- # checkout the .scripts directory
- sh.call("git", "checkout", ".scripts")
+ # initialize the .wizard directory
+ util.init_wizard_dir()
+ logging.info("Diffstat:\n" + sh.eval("git", "diff", "--stat"))
# commit user local changes
- message = "Initial commit after migration.\n\n" + util.get_git_footer()
+ message = "Autoinstall migration.\n\n%s" % util.get_git_footer()
util.set_git_env()
try:
message += "\nMigrated-by: " + util.get_operator_git()
except util.NoOperatorInfo:
pass
sh.call("git", "commit", "--allow-empty", "-a", "-m", message)
- # for verbose purposes, give us a git status and git diff
- if options.verbose:
- try:
- sh.call("git", "status")
- except shell.CallError:
- pass
- try:
- sh.call("git", "diff")
- except shell.CallError:
- pass
-class Error(_base.Error):
+def check_variables(d, options):
+ """Attempt to extract variables and complain if some are missing."""
+ variables = d.extract()
+ for k,v in variables.items():
+ if v is None and k not in d.application.deprecated_keys:
+ logging.warning("Variable %s not found" % k)
+ else:
+ logging.debug("Variable %s is %s" % (k,v))
+
+class Error(command.Error):
"""Base exception for all exceptions raised by migrate"""
pass
class AlreadyMigratedError(Error):
+ quiet = True
def __init__(self, dir):
self.dir = dir
def __str__(self):
return """
-ERROR: Directory already contains a .git and/or
-.scripts directory. Did you already migrate it?
+This autoinstall is already migrated; move along, nothing to
+see here. (If you really want to, you can force a re-migration
+with --force, but this will blow away the existing .git and
+.scripts directories (i.e. your history and Wizard configuration).)
"""
-class NotAutoinstallError(Error):
- def __init__(self, dir):
- self.dir = dir
- def __str__(self):
- return """
-
-ERROR: Could not find .scripts-version file. Are you sure
-this is an autoinstalled application?
-"""
-
-class NoRepositoryError(Error):
- def __init__(self, app):
- self.app = app
- def __str__(self):
- return """
-
-ERROR: Could not find repository for this application. Have
-you converted the repository over? Is the name %s
-the same as the name of the .git folder?
-""" % self.app
-
-class NoTagError(Error):
+class UnsupportedVersion(Error):
def __init__(self, version):
self.version = version
def __str__(self):
return """
-ERROR: Could not find tag v%s-scripts in repository
-for %s. Double check and make sure
-the repository was prepared with all necessary tags!
-""" % (self.version.version, self.version.application.name)
+ERROR: This autoinstall is presently on %s, which is unsupported by
+Wizard. Please manually upgrade it to one that is supported,
+and then retry the migration; usually the latest version is supported.
+""" % self.version
scripts.mit.edu / wizard.git / blobdiff