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File size: 1,813 Bytes
6491ad4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | import { useEffect, useReducer } from "react";
async function readMigrationFiles({ journal, migrations }) {
const migrationQueries = [];
for await (const journalEntry of journal.entries) {
const query = migrations[`m${journalEntry.idx.toString().padStart(4, "0")}`];
if (!query) {
throw new Error(`Missing migration: ${journalEntry.tag}`);
}
try {
const result = query.split("--> statement-breakpoint").map((it) => {
return it;
});
migrationQueries.push({
sql: result,
bps: journalEntry.breakpoints,
folderMillis: journalEntry.when,
hash: ""
});
} catch {
throw new Error(`Failed to parse migration: ${journalEntry.tag}`);
}
}
return migrationQueries;
}
async function migrate(db, config) {
const migrations = await readMigrationFiles(config);
return db.dialect.migrate(migrations, db.session);
}
const useMigrations = (db, migrations) => {
const initialState = {
success: false,
error: void 0
};
const fetchReducer = (state2, action) => {
switch (action.type) {
case "migrating": {
return { ...initialState };
}
case "migrated": {
return { ...initialState, success: action.payload };
}
case "error": {
return { ...initialState, error: action.payload };
}
default: {
return state2;
}
}
};
const [state, dispatch] = useReducer(fetchReducer, initialState);
useEffect(() => {
dispatch({ type: "migrating" });
migrate(db, migrations).then(() => {
dispatch({ type: "migrated", payload: true });
}).catch((error) => {
dispatch({ type: "error", payload: error });
});
}, []);
return state;
};
export {
migrate,
useMigrations
};
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