43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
// @ts-check
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const fs = require("fs")
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const {join} = require("path")
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async function migrate(db) {
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let files = fs.readdirSync(join(__dirname, "migrations"))
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files = files.sort()
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db.prepare("CREATE TABLE IF NOT EXISTS migration (filename TEXT NOT NULL)").run()
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let progress = db.prepare("SELECT * FROM migration").pluck().get()
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if (!progress) {
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progress = ""
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db.prepare("INSERT INTO migration VALUES ('')").run()
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}
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let migrationRan = false
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for (const filename of files) {
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if (progress >= filename) continue
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console.log(`Applying database migration ${filename}`)
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if (filename.endsWith(".sql")) {
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const sql = fs.readFileSync(join(__dirname, "migrations", filename), "utf8")
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db.exec(sql)
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} else if (filename.endsWith(".js")) {
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await require("./" + join("migrations", filename))(db)
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} else {
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continue
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}
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migrationRan = true
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db.transaction(() => {
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db.prepare("DELETE FROM migration").run()
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db.prepare("INSERT INTO migration VALUES (?)").run(filename)
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})()
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}
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if (migrationRan) {
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console.log("Database migrations all done.")
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}
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}
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module.exports.migrate = migrate
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