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src/backends/db/scripts/dev/start-postgres.py

 

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#!/usr/bin/python

 

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# Copyright 2008-2015 Canonical

 

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#

 

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# This program is free software: you can redistribute it and/or modify

 

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# it under the terms of the GNU Affero General Public License as

 

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# published by the Free Software Foundation, either version 3 of the

 

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# License, or (at your option) any later version.

 

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#

 

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# This program is distributed in the hope that it will be useful,

 

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

 

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 

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# GNU Affero General Public License for more details.

 

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#

 

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# You should have received a copy of the GNU Affero General Public License

 

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# along with this program. If not, see <http://www.gnu.org/licenses/>.

 

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#

 

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# For further info, check  http://launchpad.net/filesync-server

 

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"""Script to start Postgres."""

 

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import os

 

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import sys

 

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import utilities.localendpoints as local

 

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from utilities.utils import os_exec, is_running, get_tmpdir

 

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def start():

 

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    """Start Postgres."""

 

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    sock_dir = os.path.join(get_tmpdir(), "db1")

 

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    data_dir = os.path.join(sock_dir, "data")

 

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    pidfile = os.path.join(data_dir, "postmaster.pid")

 

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    if is_running("postgres", pidfile, "postgres"):

 

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        print "Postgres already up & running."

 

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        return 0

 

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    pg_bin = None

 

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    for path in ("/usr/lib/postgresql/9.1/bin",

 

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                 "/usr/lib/postgresql/8.4/bin"):

 

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        if os.path.isdir(path):

 

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            pg_bin = path

 

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            break

 

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    if pg_bin is None:

 

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        print "Cannot find valid parent for PGBINDIR"

 

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        return 1

 

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    pg_port = local.allocate_ports(1)[0]

 

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    local.register_local_port("postgres", pg_port)

 

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    os_exec(os.path.join(pg_bin, "postgres"),

 

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            "-D", data_dir,

 

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            "-k", sock_dir,

 

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            "-i", "-h", "127.0.0.1",

 

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            "-p", str(pg_port))

 

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if __name__ == '__main__':

 

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    sys.exit(start())

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