1 files changed, 0 insertions, 235 deletions
diff --git a/lib/python2.7/site-packages/south/migration/__init__.py b/lib/python2.7/site-packages/south/migration/__init__.py
deleted file mode 100644
index 1d91ddf..0000000
--- a/lib/python2.7/site-packages/south/migration/__init__.py
+++ /dev/null
@@ -1,235 +0,0 @@
-"""
-Main migration logic.
-"""
-
-from __future__ import print_function
-
-import sys
-
-from django.core.exceptions import ImproperlyConfigured
-
-import south.db
-from south import exceptions
-from south.models import MigrationHistory
-from south.db import db, DEFAULT_DB_ALIAS
-from south.migration.migrators import (Backwards, Forwards,
-                                       DryRunMigrator, FakeMigrator,
-                                       LoadInitialDataMigrator)
-from south.migration.base import Migration, Migrations
-from south.migration.utils import SortedSet
-from south.migration.base import all_migrations
-from south.signals import pre_migrate, post_migrate
-
-
-def to_apply(forwards, done):
-    return [m for m in forwards if m not in done]
-
-def to_unapply(backwards, done):
-    return [m for m in backwards if m in done]
-
-def problems(pending, done):
-    last = None
-    if not pending:
-        raise StopIteration()
-    for migration in pending:
-        if migration in done:
-            last = migration
-            continue
-        if last and migration not in done:
-            yield last, migration
-
-def forwards_problems(pending, done, verbosity):
-    """
-    Takes the list of linearised pending migrations, and the set of done ones,
-    and returns the list of problems, if any.
-    """
-    return inner_problem_check(problems(reversed(pending), done), done, verbosity)
-
-def backwards_problems(pending, done, verbosity):
-    return inner_problem_check(problems(pending, done), done, verbosity)
-
-def inner_problem_check(problems, done, verbosity):
-    "Takes a set of possible problems and gets the actual issues out of it."
-    result = []
-    for last, migration in problems:
-        checked = set([])
-        # 'Last' is the last applied migration. Step back from it until we
-        # either find nothing wrong, or we find something.
-        to_check = list(last.dependencies)
-        while to_check:
-            checking = to_check.pop()
-            if checking in checked:
-                continue
-            checked.add(checking)
-
-            if checking not in done:
-                # That's bad. Error.
-                if verbosity:
-                    print((" ! Migration %s should not have been applied "
-                           "before %s but was." % (last, checking)))
-                result.append((last, checking))
-            else:
-                to_check.extend(checking.dependencies)
-    return result
-
-def check_migration_histories(histories, delete_ghosts=False, ignore_ghosts=False):
-    "Checks that there's no 'ghost' migrations in the database."
-    exists = SortedSet()
-    ghosts = []
-    for h in histories:
-        try:
-            m = h.get_migration()
-            m.migration()
-        except exceptions.UnknownMigration:
-            ghosts.append(h)
-        except ImproperlyConfigured:
-            pass                        # Ignore missing applications
-        else:
-            exists.add(m)
-    if ghosts:
-        # They may want us to delete ghosts.
-        if delete_ghosts:
-            for h in ghosts:
-                h.delete()
-        elif not ignore_ghosts:
-            raise exceptions.GhostMigrations(ghosts)
-    return exists
-
-def get_dependencies(target, migrations):
-    forwards = list
-    backwards = list
-    if target is None:
-        backwards = migrations[0].backwards_plan
-    else:
-        forwards = target.forwards_plan
-        # When migrating backwards we want to remove up to and
-        # including the next migration up in this app (not the next
-        # one, that includes other apps)
-        migration_before_here = target.next()
-        if migration_before_here:
-            backwards = migration_before_here.backwards_plan
-    return forwards, backwards
-
-def get_direction(target, applied, migrations, verbosity, interactive):
-    # Get the forwards and reverse dependencies for this target
-    forwards, backwards = get_dependencies(target, migrations)
-    # Is the whole forward branch applied?
-    problems = None
-    forwards = forwards()
-    workplan = to_apply(forwards, applied)
-    if not workplan:
-        # If they're all applied, we only know it's not backwards
-        direction = None
-    else:
-        # If the remaining migrations are strictly a right segment of
-        # the forwards trace, we just need to go forwards to our
-        # target (and check for badness)
-        problems = forwards_problems(forwards, applied, verbosity)
-        direction = Forwards(verbosity=verbosity, interactive=interactive)
-    if not problems:
-        # What about the whole backward trace then?
-        backwards = backwards()
-        missing_backwards = to_apply(backwards, applied)
-        if missing_backwards != backwards:
-            # If what's missing is a strict left segment of backwards (i.e.
-            # all the higher migrations) then we need to go backwards
-            workplan = to_unapply(backwards, applied)
-            problems = backwards_problems(backwards, applied, verbosity)
-            direction = Backwards(verbosity=verbosity, interactive=interactive)
-    return direction, problems, workplan
-
-def get_migrator(direction, db_dry_run, fake, load_initial_data):
-    if not direction:
-        return direction
-    if db_dry_run:
-        direction = DryRunMigrator(migrator=direction, ignore_fail=False)
-    elif fake:
-        direction = FakeMigrator(migrator=direction)
-    elif load_initial_data:
-        direction = LoadInitialDataMigrator(migrator=direction)
-    return direction
-
-def get_unapplied_migrations(migrations, applied_migrations):
-    applied_migration_names = ['%s.%s' % (mi.app_name,mi.migration) for mi in applied_migrations]
-
-    for migration in migrations:
-        is_applied = '%s.%s' % (migration.app_label(), migration.name()) in applied_migration_names
-        if not is_applied:
-            yield migration
-
-def migrate_app(migrations, target_name=None, merge=False, fake=False, db_dry_run=False, yes=False, verbosity=0, load_initial_data=False, skip=False, database=DEFAULT_DB_ALIAS, delete_ghosts=False, ignore_ghosts=False, interactive=False):
-    app_label = migrations.app_label()
-
-    verbosity = int(verbosity)
-    # Fire off the pre-migrate signal
-    pre_migrate.send(None, app=app_label, verbosity=verbosity, interactive=verbosity, db=database)
-    
-    # If there aren't any, quit quizically
-    if not migrations:
-        print("? You have no migrations for the '%s' app. You might want some." % app_label)
-        return
-    
-    # Load the entire dependency graph
-    Migrations.calculate_dependencies()
-    
-    # Check there's no strange ones in the database
-    applied_all = MigrationHistory.objects.filter(applied__isnull=False).order_by('applied').using(database)
-    applied = applied_all.filter(app_name=app_label).using(database)
-    south.db.db = south.db.dbs[database]
-    Migrations.invalidate_all_modules()
-    
-    south.db.db.debug = (verbosity > 1)
-
-    if target_name == 'current-1':
-        if applied.count() > 1:
-            previous_migration = applied[applied.count() - 2]
-            if verbosity:
-                print('previous_migration: %s (applied: %s)' % (previous_migration.migration, previous_migration.applied))
-            target_name = previous_migration.migration
-        else:
-            if verbosity:
-                print('previous_migration: zero')
-            target_name = 'zero'
-    elif target_name == 'current+1':
-        try:
-            first_unapplied_migration = get_unapplied_migrations(migrations, applied).next()
-            target_name = first_unapplied_migration.name()
-        except StopIteration:
-            target_name = None
-    
-    applied_all = check_migration_histories(applied_all, delete_ghosts, ignore_ghosts)
-    
-    # Guess the target_name
-    target = migrations.guess_migration(target_name)
-    if verbosity:
-        if target_name not in ('zero', None) and target.name() != target_name:
-            print(" - Soft matched migration %s to %s." % (target_name,
-                                                           target.name()))
-        print("Running migrations for %s:" % app_label)
-    
-    # Get the forwards and reverse dependencies for this target
-    direction, problems, workplan = get_direction(target, applied_all, migrations,
-                                                  verbosity, interactive)
-    if problems and not (merge or skip):
-        raise exceptions.InconsistentMigrationHistory(problems)
-    
-    # Perform the migration
-    migrator = get_migrator(direction, db_dry_run, fake, load_initial_data)
-    if migrator:
-        migrator.print_title(target)
-        success = migrator.migrate_many(target, workplan, database)
-        # Finally, fire off the post-migrate signal
-        if success:
-            post_migrate.send(None, app=app_label, verbosity=verbosity, interactive=verbosity, db=database)
-    else:
-        if verbosity:
-            # Say there's nothing.
-            print('- Nothing to migrate.')
-        # If we have initial data enabled, and we're at the most recent
-        # migration, do initial data.
-        # Note: We use a fake Forwards() migrator here. It's never used really.
-        if load_initial_data:
-            migrator = LoadInitialDataMigrator(migrator=Forwards(verbosity=verbosity))
-            migrator.load_initial_data(target, db=database)
-        # Send signal.
-        post_migrate.send(None, app=app_label, verbosity=verbosity, interactive=verbosity, db=database)