def execute(self, args, options):
filters = {}
if options.filter:
if not os.path.exists(options.filter):
self.parser().error('filter: unable to open for reading')
filters = create_filter(options.filter, options.include_tags, options.exclude_tags)
input, output = args
# load the source state
saved_state = None
for provider in PROVIDERS:
if provider.can_load(input):
saved_state = provider.load(input, filters)
break
else:
self.parser().error('source: unable to open for reading')
# (re)name it if applicable
if options.name:
saved_state.name = options.name
elif saved_state.setdefault('name') is None:
saved_state.name = get_uuid4()
# save it to target state
for provider in PROVIDERS:
if provider.can_save(output):
provider.save(saved_state, output, options.comment)
break
else:
self.parser().error('target: unable to open for writing')
def execute(self, args, options):
filters = {}
if options.filter:
if not os.path.exists(options.filter):
self.parser().error('filter: unable to open for reading')
filters = create_filter(options.filter, options.include_tags,
options.exclude_tags)
input, output = args
# load the source state
saved_state = None
for provider in PROVIDERS:
if provider.can_load(input):
saved_state = provider.load(input, filters)
break
else:
self.parser().error('source: unable to open for reading')
# (re)name it if applicable
if options.name:
saved_state.name = options.name
elif saved_state.setdefault('name') is None:
saved_state.name = get_uuid4()
# save it to target state
for provider in PROVIDERS:
if provider.can_save(output):
provider.save(saved_state, output, options.comment)
break
else:
self.parser().error('target: unable to open for writing')
def run(self, options, base_dir):
# setup directory configuration
self.config_dir = os.path.join(base_dir, 'config')
self.migration_dir = os.path.join(base_dir, 'migration')
self.filter_config = os.path.join(self.config_dir, 'schema.ini')
self.migration_conf = os.path.join(self.migration_dir, 'migration.ini')
self.changelog = os.path.join(base_dir, 'changes.txt')
self.change_report = os.path.join(base_dir, 'change_report.html')
self.change_commit = os.path.join(base_dir, 'change_report.txt')
self.current_state = os.path.join(base_dir, 'current.state')
self.latest_state = self.tempfile(ext='.state')
self.execute_cmd('getting current version', ['dvs', 'name', self.current_state])
self.current_version = self.output
self.next_version = get_uuid4()
self.execute_ddl('getting state version from database', GETVERSION_SQL)
match = re.match(r'SCHEMA_VERSION\s+\-+\s+([\w\-]+)\s*', self.output)
if not match:
self.message('cannot find schema version')
print self.output
self.quit(SQLERR)
self.db_version = match.group(1)
if self.db_version != self.current_version:
new_opt = optparse.Values()
new_opt.no_comment = False
new_opt.wrap = False
new_opt.include_tags = options.include_tags
new_opt.exclude_tags = options.exclude_tags
self.migrate = MigrateDb()
self.migrate.connectString = self.connectString
self.migrate.target_version = self.current_version
self.migrate.source_version = self.db_version
self.migrate.start_version = self.db_version
self.migrate.setup_migrations(self.migration_dir)
if self.migrate.migration_path:
self.message('pushing changes to the database (unsaved changes may be lost)')
self.message('', None)
return self.migrate.run(new_opt, self.current_state,
self.filter_config, self.migration_dir)
self.execute_cmd('extracting latest database state',
['dvs', 'copy', '-f', self.filter_config,
'-n', self.next_version, '-i', options.include_tags,
'-x', options.exclude_tags, 'oracle:'+self.connectString,
self.latest_state])
differ = DiffDb()
status = differ.run(self.current_state, self.latest_state)
if status == 0:
self.message('no changes detected')
return 0
elif status == 1:
self.message('changes detected, skipping migration check')
self.generate_diff(self.current_state, self.latest_state)
# mark that this requires no migration
migration_file = open(self.migration_conf, 'a')
migration_file.write('%s = %s\n' % (self.current_version, self.next_version))
migration_file.close()
elif status == 2:
self.message('changes detected, performing migration check')
if not self.check_migration(options):
self.message('', None)
self.message('migration check failed, migrations may be incomplete or invalid.')
self.generate_diff(self.latest_state, self.migrate.migration_check)
return 1
self.message('', None)
self.message('migration check succeeded')
# update SQL files with the correct version
for migration in glob.glob(self.migration_dir+'/*.sql'):
data = self.read_file(migration)
match = MIGRATION_REGEX.match(data)
if not match:
continue
source, target, description = match.groups()
if target == 'next-version':
self.write_file(migration, data.replace('next-version', self.next_version))
self.generate_diff(self.current_state, self.latest_state)
cleaner = CleanDb()
cleaner.connectString = self.tempConnectString
cleaner.run()
self.execute_sql('synchronizing version numbers',
UPDATESCHEMA_SQL % (self.next_version, '** migrations tested **'))
self.message('updating the change log')
migration_changes = []
if hasattr(self, 'migrate') and self.migrate and self.migrate.migration_path:
for i in range(len(self.migrate.migration_path)-1):
s, t = self.migrate.migration_path[i], self.migrate.migration_path[i+1]
migration_changes.append('- ' + self.migrate.migrations[s][t][0])
current_date = datetime.datetime.now().strftime('[%Y-%m-%d %H:%M] ')
text = current_date + self.next_version + '\n%s\n\n' % ('=' * 55)
if migration_changes:
text += 'Migrations:\n\n' + '\n'.join(migration_changes) + '\n\n'
text += 'Schema Changes:\n\n' + differ.output + '\n\n\n\n'
previous_changelog = self.read_file(self.changelog)
self.write_file(self.changelog, text + previous_changelog)
self.write_file(self.change_commit, "build $ver$: %s => %s\n\n%s" % \
(self.current_version, self.next_version, differ.output))
self.message('updating the current state with latest version')
os.remove(self.current_state)
os.rename(self.latest_state, self.current_state)
self.rewrite_schema()
return 0
