Merge pull request #69 from DouglasNeuroInformatics/instance-id

feat: add getInstanceId

Author: joshunrau

src/cli/bin/libnest-dev

@@ -16,4 +16,5 @@ if [ "$NO_WATCH" = false ]; then
   RUNTIME_ARGS="$RUNTIME_ARGS --watch --watch-preserve-output"
 fi
 
-exec node $RUNTIME_ARGS "${PARENT_DIR}/libnest-dev.js" "$@"
+LIBNEST_INSTANCE_ID=$(head -c 16 /dev/urandom | od -An -tx1 | tr -d ' \n'; echo) \
+  exec node $RUNTIME_ARGS "${PARENT_DIR}/libnest-dev.js" "$@"

src/index.ts

@@ -35,3 +35,4 @@ export type { BaseEnv } from './schemas/env.schema.js';
 export { $MongoEnv } from './schemas/mongo-env.schema.js';
 export type { RequestUser } from './user-config.js';
 export type { BaseEnvSchema } from './utils/env.utils.js';
+export { getInstanceId } from './utils/env.utils.js';

src/meta/build.ts

@@ -39,6 +39,7 @@ export function buildProd({
       logVerbose('Successfully imported esbuild');
       logVerbose('Defining global variables...');
       const define: { [key: string]: string } = {
+        'process.env.LIBNEST_INSTANCE_ID': `"${crypto.randomUUID()}"`,
         'process.env.NODE_ENV': "'production'"
       };
       for (const key in config.globals) {

src/testing/plugin.ts

@@ -73,7 +73,8 @@ const plugin = ({
         }
         return {
           define: {
-            'process.env.LIBNEST_CONFIG_FILEPATH': `"${configInfo.filepath}"`
+            'process.env.LIBNEST_CONFIG_FILEPATH': `"${configInfo.filepath}"`,
+            'process.env.LIBNEST_INSTANCE_ID': `"${crypto.randomUUID()}"`
           }
         };
       },

src/utils/__tests__/env.utils.test.ts

@@ -0,0 +1,9 @@
+import { describe, expect, it } from 'vitest';
+
+import { getInstanceId } from '../env.utils.js';
+
+describe('getInstanceId', () => {
+  it('should return a UUID in tests', () => {
+    expect(getInstanceId()).toBeTypeOf('string');
+  });
+});

src/utils/env.utils.ts

@@ -5,6 +5,10 @@ import type { BaseEnv } from '../schemas/env.schema.js';
 
 export type BaseEnvSchema = z.ZodType<BaseEnv>;
 
+export function getInstanceId(): string {
+  return process.env.LIBNEST_INSTANCE_ID!;
+}
+
 export function parseEnv<TSchema extends BaseEnvSchema = BaseEnvSchema>(schema: TSchema): z.output<TSchema> {
   // this is required so that these can be statically replaced in the bundle
   const env = { ...process.env, NODE_ENV: process.env.NODE_ENV };