messkit/messkit/commands.py
2022-03-05 15:39:54 -06:00

304 lines
10 KiB
Python

# -*- coding: utf-8; -*-
######################################################################
#
# Messkit -- Generic-ish Data Utility App
# Copyright © 2022 Lance Edgar
#
# This file is part of Messkit.
#
# Messkit is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Messkit is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Messkit. If not, see <http://www.gnu.org/licenses/>.
#
######################################################################
"""
Messkit commands
"""
import os
import stat
import sys
import subprocess
import sqlalchemy as sa
from prompt_toolkit import prompt
from prompt_toolkit.styles import Style
from rich import print as rprint
from alembic.util.messaging import obfuscate_url_pw
from rattail import commands
from rattail.files import resource_path
from messkit import __version__
def main(*args):
"""
Main entry point for Messkit command system
"""
args = list(args or sys.argv[1:])
cmd = Command()
cmd.run(*args)
class Command(commands.Command):
"""
Main command for Messkit
"""
name = 'messkit'
version = __version__
description = "Messkit (Generic Data App)"
long_description = ''
class Install(commands.Subcommand):
"""
Install a Messkit app
"""
name = 'install'
description = __doc__.strip()
def run(self, args):
rprint("\n\t[blue]Welcome to Messkit![/blue]")
rprint("\n\tThis tool will install and configure a new app.")
rprint("\n\t[italic]NB. You should already have created a new database in PostgreSQL or MySQL.[/italic]")
# continue?
if not self.basic_prompt("continue?", True, is_bool=True):
rprint()
sys.exit(0)
# appdir must not yet exist
appdir = os.path.join(sys.prefix, 'app')
if os.path.exists(appdir):
rprint("\n\t[bold red]appdir already exists:[/bold red] {}\n".format(appdir))
sys.exit(1)
# get db info
dbtype = self.basic_prompt('db type', 'postgresql')
dbhost = self.basic_prompt('db host', 'localhost')
dbport = self.basic_prompt('db port', '3306' if dbtype == 'mysql' else '5432')
dbname = self.basic_prompt('db name', 'messkit')
dbuser = self.basic_prompt('db user', 'rattail')
# get db password
dbpass = None
while not dbpass:
dbpass = self.basic_prompt('db pass', is_password=True)
# test db connection
rprint("\n\ttesting db connection... ", end='')
dburl = self.make_db_url(dbtype, dbhost, dbport, dbname, dbuser, dbpass)
error = self.test_db_connection(dburl)
if error:
rprint("[bold red]cannot connect![/bold red] ..error was:")
rprint("\n{}".format(error))
rprint("\n\t[bold yellow]aborting mission[/bold yellow]\n")
sys.exit(1)
rprint("[bold green]good[/bold green]")
# make the appdir
self.app.make_appdir(appdir)
# shared context for generated app files
context = {
'envdir': sys.prefix,
'app_package': 'messkit',
'app_title': "Messkit",
'appdir': appdir,
'db_url': dburl,
'pyramid_egg': 'Messkit',
'beaker_key': 'messkit',
}
# make config files
rattail_conf = self.app.make_config_file(
'rattail', os.path.join(appdir, 'rattail.conf'),
template_path=resource_path('messkit:templates/installer/rattail.conf.mako'),
**context)
quiet_conf = self.app.make_config_file('quiet', appdir)
web_conf = self.app.make_config_file(
'web-complete', os.path.join(appdir, 'web.conf'),
**context)
# make upgrade script
path = os.path.join(appdir, 'upgrade.sh')
self.app.render_mako_template(
resource_path('messkit:templates/installer/upgrade.sh.mako'),
context, output_path=path)
os.chmod(path, stat.S_IRWXU
| stat.S_IRGRP
| stat.S_IXGRP
| stat.S_IROTH
| stat.S_IXOTH)
rprint("\n\tappdir created at: [bold green]{}[/bold green]".format(appdir))
bindir = os.path.join(sys.prefix, 'bin')
schema_installed = False
if self.basic_prompt("install db schema?", True, is_bool=True):
rprint()
# install db schema
alembic = os.path.join(bindir, 'alembic')
cmd = [alembic, '-c', rattail_conf, 'upgrade', 'heads']
subprocess.check_call(cmd)
schema_installed = True
rattail = os.path.join(bindir, 'rattail')
# set falafel theme
cmd = [rattail, '-c', quiet_conf, '--no-versioning',
'setting-put', 'tailbone.theme', 'falafel']
subprocess.check_call(cmd)
# set main image
cmd = [rattail, '-c', quiet_conf, '--no-versioning',
'setting-put', 'tailbone.main_image_url', '/messkit/img/messkit.png']
subprocess.check_call(cmd)
# set header image
cmd = [rattail, '-c', quiet_conf, '--no-versioning',
'setting-put', 'tailbone.header_image_url', '/messkit/img/messkit-small.png']
subprocess.check_call(cmd)
# set favicon image
cmd = [rattail, '-c', quiet_conf, '--no-versioning',
'setting-put', 'tailbone.favicon_url', '/messkit/img/messkit-small.png']
subprocess.check_call(cmd)
rprint("\n\tdb schema installed to: [bold green]{}[/bold green]".format(
obfuscate_url_pw(dburl)))
if self.basic_prompt("create admin user?", True, is_bool=True):
# get admin credentials
username = self.basic_prompt('admin username', 'admin')
password = None
while not password:
password = self.basic_prompt('admin password', is_password=True)
if password:
confirm = self.basic_prompt('confirm password', is_password=True)
if not confirm or confirm != password:
rprint("[bold yellow]passwords did not match[/bold yellow]")
password = None
fullname = self.basic_prompt('full name')
rprint()
# make admin user
rattail = os.path.join(bindir, 'rattail')
cmd = [rattail, '-c', quiet_conf, 'make-user', '-A', username,
'--password', password]
if fullname:
cmd.extend(['--full-name', fullname])
subprocess.check_call(cmd)
rprint("\n\tadmin user created: [bold green]{}[/bold green]".format(
username))
if self.basic_prompt("make poser dir?", True, is_bool=True):
rprint()
# make poser dir
poser_handler = self.app.get_poser_handler()
poserdir = poser_handler.make_poser_dir()
rprint("\n\tposer dir created: [bold green]{}[/bold green]".format(
poserdir))
rprint("\n\t[bold green]initial setup is complete![/bold green]")
if schema_installed:
rprint("\n\tyou can run the web app with this command:")
pserve = os.path.join(bindir, 'pserve')
rprint("\n\t[blue]{} file+ini:{}[/blue]".format(pserve, web_conf))
rprint()
# TODO: somewhere should ask about apache proxy, https etc.?
def basic_prompt(self, info, default=None, is_password=False, is_bool=False):
# message formatting styles
style = Style.from_dict({
'': '',
'bold': 'bold',
})
# build prompt message
message = [
('', '\n'),
('class:bold', info),
]
if default is not None:
if is_bool:
message.append(('', ' [{}]: '.format('Y' if default else 'N')))
else:
message.append(('', ' [{}]: '.format(default)))
else:
message.append(('', ': '))
# prompt user for input
try:
text = prompt(message, style=style, is_password=is_password)
except (KeyboardInterrupt, EOFError):
rprint("\n\t[bold yellow]operation canceled by user[/bold yellow]\n",
file=self.stderr)
sys.exit(2)
if is_bool:
if text == '':
return default
elif text.upper() == 'Y':
return True
elif text.upper() == 'N':
return False
rprint("\n\t[bold yellow]ambiguous, please try again[/bold yellow]\n")
return self.basic_prompt(info, default, is_bool=True)
return text or default
def make_db_url(self, dbtype, dbhost, dbport, dbname, dbuser, dbpass):
try:
# newer style
from sqlalchemy.engine import URL
factory = URL.create
except ImportError:
# older style
from sqlalchemy.engine.url import URL
factory = URL
if dbtype == 'mysql':
drivername = 'mysql+mysqlconnector'
else:
drivername = 'postgresql+psycopg2'
return factory(drivername=drivername,
username=dbuser,
password=dbpass,
host=dbhost,
port=dbport,
database=dbname)
def test_db_connection(self, url):
engine = sa.create_engine(url)
# check for random table; does not matter if it exists, we
# just need to test interaction and this is a neutral way
try:
engine.has_table('whatever')
except Exception as error:
return str(error)