100 lines
2.4 KiB
TypeScript
100 lines
2.4 KiB
TypeScript
/*
|
|
Espe | Ein schlichtes Werkzeug zur Mitglieder-Verwaltung | Backend
|
|
Copyright (C) 2024 Christian Fraß
|
|
|
|
This program 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.
|
|
|
|
This program 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 this program. If not, see
|
|
<https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
namespace _espe.database
|
|
{
|
|
|
|
/**
|
|
*/
|
|
const _compatible_revisions : Array<string> = [
|
|
"r3",
|
|
];
|
|
|
|
|
|
/**
|
|
*/
|
|
export function get_implementation(
|
|
) : lib_plankton.database.type_database
|
|
{
|
|
switch (_espe.conf.get().database.kind) {
|
|
case "sqlite": {
|
|
type type_parameters = {
|
|
path : string;
|
|
};
|
|
const parameters : type_parameters = (_espe.conf.get().database.data as type_parameters);
|
|
return lib_plankton.database.sqlite_database(
|
|
{
|
|
"path": parameters.path,
|
|
"verbose": false,
|
|
}
|
|
);
|
|
break;
|
|
}
|
|
default: {
|
|
throw (new Error("database implementation not available: " + _espe.conf.get().database.kind));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
*/
|
|
function get_revision(
|
|
) : Promise<(null | string)>
|
|
{
|
|
return (
|
|
get_implementation().query_select(
|
|
{
|
|
"source": "_meta",
|
|
"fields": ["revision"],
|
|
}
|
|
)
|
|
.then<(null | string)>(
|
|
(rows) => Promise.resolve<(null | string)>(rows[0]["revision"])
|
|
)
|
|
.catch<(null | string)>(
|
|
() => Promise.resolve<(null | string)>(null)
|
|
)
|
|
);
|
|
}
|
|
|
|
|
|
/**
|
|
*/
|
|
export async function check(
|
|
) : Promise<void>
|
|
{
|
|
const revision : (null | string) = await get_revision();
|
|
lib_plankton.log.info(
|
|
"database_check",
|
|
{
|
|
"revision_found": revision,
|
|
"revisions_compatible": _compatible_revisions,
|
|
}
|
|
);
|
|
if (revision === null) {
|
|
return Promise.reject<void>(new Error("database appearently missing"));
|
|
}
|
|
else {
|
|
if (! _compatible_revisions.includes(revision)) {
|
|
return Promise.reject<void>(new Error("database revision incompatible; found: " + revision + "; required: " + String(_compatible_revisions)));
|
|
}
|
|
else {
|
|
return Promise.resolve<void>(undefined);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|