obsidian-visualiser/modules/database.sync/module.ts

52 lines
1.5 KiB
TypeScript

import { defineNuxtModule } from '@nuxt/kit'
import { Database } from "bun:sqlite";
interface Schema
{
type: string;
name: string;
tbl_name: string;
sql: string;
}
interface Structure
{
cid: number;
name: string;
type: string;
[key: string]: number | string | null;
}
export default defineNuxtModule({
setup (options, nuxt) {
nuxt.hook('build:done', () => {
console.log("Building database");
const template = new Database(nuxt.options.runtimeConfig.templateFile);
const schema = template.query(`SELECT * FROM sqlite_schema WHERE type = 'table'`).all() as Schema[];
const db = new Database(nuxt.options.runtimeConfig.dbFile);
db.exec(`PRAGMA foreign_keys = 0`);
const structure = db.query(`SELECT * FROM pragma_table_info(?1)`);
(db.transaction((tables: Schema[]) => {
for(const table of tables)
{
if(table.name === 'sqlite_sequence')
continue;
const columns = structure.all(table.name) as Structure[];
db.exec(`ALTER TABLE ${table.name} RENAME TO ${table.name}_old`);
db.exec(table.sql);
db.exec(`INSERT INTO ${table.name} (${columns.map(e => `"${e.name}"`).join(', ')}) SELECT * FROM ${table.name}_old`);
db.exec(`DROP TABLE ${table.name}_old`);
}
})).immediate(schema);
db.exec(`PRAGMA foreign_keys = 1`);
db.close();
template.close();
});
}
})