mastotuit/db-setup.py

173 líneas
4,1 KiB
Python

import getpass
import os
import sys
import psycopg2
from psycopg2 import sql
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
import pdb
def get_dbconfig():
# Load configuration from config file
config_filepath = "config/db_config.txt"
feeds_db = get_parameter("feeds_db", config_filepath)
feeds_db_user = get_parameter("feeds_db_user", config_filepath)
feeds_url = get_parameter("feeds_url", config_filepath)
return (config_filepath, feeds_db, feeds_db_user, feeds_url)
def get_parameter( parameter, file_path ):
# Check if secrets file exists
if not os.path.isfile(file_path):
print("File %s not found, asking."%file_path)
write_parameter( parameter, file_path )
#sys.exit(0)
# Find parameter in file
with open( file_path ) as f:
for line in f:
if line.startswith( parameter ):
return line.replace(parameter + ":", "").strip()
# Cannot find parameter, exit
print(file_path + " Missing parameter %s "%parameter)
sys.exit(0)
def create_db():
create_error = ''
conn = None
try:
conn = psycopg2.connect(dbname='postgres',
user=feeds_db_user, host='',
password='')
conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
cur = conn.cursor()
print("Creating database " + feeds_db + ". Please wait...")
cur.execute(sql.SQL("CREATE DATABASE {}").format(
sql.Identifier(feeds_db))
)
print("Database " + feeds_db + " created!")
except (Exception, psycopg2.DatabaseError) as error:
create_error = error.pgcode
sys.stdout.write(f'\n{str(error)}\n')
finally:
if conn is not None:
conn.close()
return create_error
def check_db_conn():
try:
conn = None
conn = psycopg2.connect(database = feeds_db, user = feeds_db_user, password = "", host = "/var/run/postgresql", port = "5432")
except (Exception, psycopg2.DatabaseError) as error:
print(error)
os.remove(config_filepath)
sys.exit('Exiting. Run db-setup again with right parameters')
if conn is not None:
print("\n")
print("mastotuit parameters saved to db-config.txt!")
print("\n")
def write_parameter( parameter, file_path ):
if not os.path.exists('config'):
os.makedirs('config')
print("Setting up mastotuit parameters...")
print("\n")
feeds_db = input("feeds db name: ")
feeds_db_user = input("feeds db user: ")
feeds_url = input("enter Mastodon user RSS feeds url: ")
with open(file_path, "w") as text_file:
print("feeds_db: {}".format(feeds_db), file=text_file)
print("feeds_db_user: {}".format(feeds_db_user), file=text_file)
print("feeds_url: {}".format(feeds_url), file=text_file)
def create_table(db, db_user, table, sql):
conn = None
try:
conn = psycopg2.connect(database = db, user = db_user, password = "", host = "/var/run/postgresql", port = "5432")
cur = conn.cursor()
print("Creating table.. "+table)
# Create the table in PostgreSQL database
cur.execute(sql)
conn.commit()
print("Table "+table+" created!")
print("\n")
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
#############################################################################################
# main
if __name__ == '__main__':
config_filepath, feeds_db, feeds_db_user, feeds_url = get_dbconfig()
create_error = create_db()
if create_error == '':
check_db_conn()
else:
if create_error == '42P04':
sys.exit()
else:
os.remove(config_filepath)
sys.exit()
############################################################
# Create needed tables
############################################################
db = feeds_db
db_user = feeds_db_user
table = "id"
sql = f'create table {table} (toot_id bigint PRIMARY KEY, tweet_id bigint)'
create_table(db, db_user, table, sql)
print(f'Done!\nNow you can run setup.py\n')