mirror of https://git.sr.ht/~cadence/bibliogram
58 lines
2.0 KiB
JavaScript
58 lines
2.0 KiB
JavaScript
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const constants = require("../constants")
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const pj = require("path").join
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const db = require("../db")
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require("../testimports")(db)
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const deltas = new Map([
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// empty file to version 1
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[1, function() {
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db.prepare("DROP TABLE IF EXISTS Users")
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.run()
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db.prepare("DROP TABLE IF EXISTS DatabaseVersion")
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.run()
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db.prepare("DROP TABLE IF Exists Posts")
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.run()
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db.prepare("CREATE TABLE Users (username TEXT NOT NULL UNIQUE, user_id TEXT NOT NULL UNIQUE, PRIMARY KEY (username))")
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.run()
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db.prepare("CREATE TABLE DatabaseVersion (version INTEGER NOT NULL UNIQUE, PRIMARY KEY (version))")
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.run()
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db.prepare("CREATE TABLE Posts (shortcode TEXT NOT NULL UNIQUE, id TEXT NOT NULL UNIQUE, id_as_numeric NUMERIC NOT NULL, username TEXT NOT NULL, json TEXT NOT NULL, PRIMARY KEY (shortcode))")
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// for future investigation: may not be able to sort by id as a string, may not be able to fit entire id in numeric type
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.run()
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}]
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])
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module.exports = async function() {
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let currentVersion = 0
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try {
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currentVersion = db.prepare("SELECT version FROM DatabaseVersion").pluck().get() || 0
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} catch (e) {}
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const newVersion = constants.database_version
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if (currentVersion !== newVersion) {
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console.log(`Upgrading database from version ${currentVersion} to version ${newVersion}...`)
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// go through the entire upgrade path
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for (let entry = currentVersion+1; entry <= newVersion; entry++) {
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// Back up current version
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if (entry !== 1) {
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const filename = `backups/bibliogram.db.bak-v${entry-1}`
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process.stdout.write(`Backing up current to ${filename}... `)
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await db.backup(pj(__dirname, "../../../db", filename))
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process.stdout.write("done.\n")
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}
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// Run delta
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process.stdout.write(`Using script ${entry}... `)
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deltas.get(entry)()
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db.prepare("DELETE FROM DatabaseVersion").run()
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db.prepare("INSERT INTO DatabaseVersion (version) VALUES (?)").run(entry)
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process.stdout.write("done.\n")
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}
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console.log(
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"Upgrade complete."
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+"\n-----------------"
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)
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}
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}
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