lnbits-legend/lnbits/commands.py
2021-06-20 21:17:32 -03:00

94 lines
3.2 KiB
Python

import trio
import warnings
import click
import importlib
import re
import os
from sqlalchemy.exc import OperationalError # type: ignore
from .core import db as core_db, migrations as core_migrations
from .helpers import (
get_valid_extensions,
get_css_vendored,
get_js_vendored,
url_for_vendored,
)
from .settings import LNBITS_PATH
@click.command("migrate")
def db_migrate():
trio.run(migrate_databases)
@click.command("assets")
def handle_assets():
transpile_scss()
bundle_vendored()
def transpile_scss():
with warnings.catch_warnings():
warnings.simplefilter("ignore")
from scss.compiler import compile_string # type: ignore
with open(os.path.join(LNBITS_PATH, "static/scss/base.scss")) as scss:
with open(os.path.join(LNBITS_PATH, "static/css/base.css"), "w") as css:
css.write(compile_string(scss.read()))
def bundle_vendored():
for getfiles, outputpath in [
(get_js_vendored, os.path.join(LNBITS_PATH, "static/bundle.js")),
(get_css_vendored, os.path.join(LNBITS_PATH, "static/bundle.css")),
]:
output = ""
for path in getfiles():
with open(path) as f:
output += "/* " + url_for_vendored(path) + " */\n" + f.read() + ";\n"
with open(outputpath, "w") as f:
f.write(output)
async def migrate_databases():
"""Creates the necessary databases if they don't exist already; or migrates them."""
async with core_db.connect() as conn:
try:
rows = await (await conn.execute("SELECT * FROM dbversions")).fetchall()
except OperationalError:
# migration 3 wasn't ran
await core_migrations.m000_create_migrations_table(conn)
rows = await (await conn.execute("SELECT * FROM dbversions")).fetchall()
current_versions = {row["db"]: row["version"] for row in rows}
matcher = re.compile(r"^m(\d\d\d)_")
async def run_migration(db, migrations_module):
db_name = migrations_module.__name__.split(".")[-2]
for key, migrate in migrations_module.__dict__.items():
match = match = matcher.match(key)
if match:
version = int(match.group(1))
if version > current_versions.get(db_name, 0):
print(f"running migration {db_name}.{version}")
await migrate(db)
await conn.execute(
"INSERT OR REPLACE INTO dbversions (db, version) VALUES (?, ?)",
(db_name, version),
)
await run_migration(conn, core_migrations)
for ext in get_valid_extensions():
try:
ext_migrations = importlib.import_module(
f"lnbits.extensions.{ext.code}.migrations"
)
ext_db = importlib.import_module(f"lnbits.extensions.{ext.code}").db
await run_migration(ext_db, ext_migrations)
except ImportError:
raise ImportError(
f"Please make sure that the extension `{ext.code}` has a migrations file."
)