/silversupport/service/couchdb.py

 1"""CouchDB service support"""
 2
 3from json import loads
 4from silversupport.shell import run
 5from silversupport.abstractservice import AbstractService
 6
 7
 8class Service(AbstractService):
 9
10    packages = ['couchdb']
11    platform_packages = dict(python=['python-couchdb'])
12
13    def install(self):
14        # We lower the name because upper-case db names are not allowed in CouchDB
15        app_name = self.app_config.app_name.lower()
16
17        # Ensure that couchdb is installed
18        self.install_packages()
19
20        # Check to see if the database is present
21        stdout, stderr, returncode = run(
22            ['curl', '-s', '-N', 'http://localhost:5984/_all_dbs'],
23            capture_stdout=True)
24        dbs = loads(stdout)
25
26        if app_name in dbs:
27            self.output('Database %s already exists' % app_name)
28        else:
29            self.output('Database %s does not exist; created.' % app_name)
30            run(['curl', '-N', '-s', '-X', 'PUT', 'http://localhost:5984/%s' % app_name])
31
32    def env_setup(self):
33        environ = {}
34        app_name = self.app_config.app_name
35        environ['CONFIG_COUCHDB_DB'] = app_name
36        environ['CONFIG_COUCHDB_HOST'] = '127.0.0.1:5984'
37        if self.devel:
38            for name, value in self.devel_config.items():
39                if name.startswith('couchdb.'):
40                    name = name[len('couchdb.'):]
41                    environ['CONFIG_COUCHDB_%s' % name.upper()] = value
42        return environ