mirror of
https://github.com/balena-os/balena-supervisor.git
synced 2024-12-22 06:57:49 +00:00
48e0733c7e
The supervisor uses the following pattern for async module
initialization
```typescript
// module.ts
export const initialised = (async () => {
// do some async initialization
})();
// somewhere else
import * as module from 'module';
async function setup() {
await module.initialise;
}
```
The above pattern means that whenever the module is imported, the
initialisation procedure will be ran, which is an anti-pattern.
This converts any instance of this pattern into a function
```typescript
export const initialised = _.once(async () => {
// do some async initialization
});
```
And anywhere else on the code it replaces the call with a
```typescript
await module.initialised();
```
Change-type: patch
69 lines
1.6 KiB
TypeScript
69 lines
1.6 KiB
TypeScript
import * as fs from 'fs';
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import * as db from '~/src/db';
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import * as config from '~/src/config';
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export = async function () {
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await db.initialized();
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await config.initialized();
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await db.transaction(async (trx) => {
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const result = await trx.raw(`
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SELECT name, sql
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FROM sqlite_master
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WHERE type='table'`);
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for (const r of result) {
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// We don't run the migrations again
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if (r.name !== 'knex_migrations') {
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await trx.raw(`DELETE FROM ${r.name}`);
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}
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}
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// The supervisor expects this value to already have
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// been pre-populated
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await trx('deviceConfig').insert({ targetValues: '{}' });
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});
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try {
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fs.unlinkSync(process.env.DATABASE_PATH_2!);
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} catch (e) {
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/* ignore /*/
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}
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try {
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fs.unlinkSync(process.env.DATABASE_PATH_3!);
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} catch (e) {
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/* ignore /*/
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}
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try {
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fs.unlinkSync(process.env.LED_FILE!);
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} catch (e) {
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/* ignore /*/
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}
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try {
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fs.writeFileSync(
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'./test/data/config.json',
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fs.readFileSync('./test/data/testconfig.json'),
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);
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fs.writeFileSync(
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'./test/data/config-apibinder.json',
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fs.readFileSync('./test/data/testconfig-apibinder.json'),
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);
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fs.writeFileSync(
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'./test/data/config-apibinder-offline.json',
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fs.readFileSync('./test/data/testconfig-apibinder-offline.json'),
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);
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fs.writeFileSync(
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'./test/data/config-apibinder-offline2.json',
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fs.readFileSync('./test/data/testconfig-apibinder-offline2.json'),
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);
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} catch (e) {
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/* ignore /*/
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}
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// @ts-expect-error using private properties
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config.configJsonBackend.cache = await config.configJsonBackend.read();
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await config.generateRequiredFields();
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};
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