fix(DryMongoBinary): use "INIT_CWD" when available

fixes #478
nodkz · Jun 2, 2021 · cc2da32 · cc2da32
1 parent 1d7d304
commit cc2da32
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/packages/mongodb-memory-server-core/src/util/DryMongoBinary.ts b/packages/mongodb-memory-server-core/src/util/DryMongoBinary.ts
@@ -173,8 +173,10 @@ export class DryMongoBinary {
     // Assign "node_modules/.cache" to modulesCache
 
     // if we're in postinstall script, npm will set the cwd too deep
-    let nodeModulesDLDir = process.cwd();
-    while (nodeModulesDLDir.endsWith(`node_modules${path.sep}mongodb-memory-server`)) {
+    // when in postinstall, npm will provide an "INIT_CWD" env variable
+    let nodeModulesDLDir = process.env['INIT_CWD'] || process.cwd();
+    // as long as "node_modules/mongodb-memory-server*" is included in the path, go the paths up
+    while (nodeModulesDLDir.includes(`node_modules${path.sep}mongodb-memory-server`)) {
       nodeModulesDLDir = path.resolve(nodeModulesDLDir, '..', '..');
     }
 

diff --git a/packages/mongodb-memory-server-core/src/util/__tests__/dryBinary.test.ts b/packages/mongodb-memory-server-core/src/util/__tests__/dryBinary.test.ts
@@ -54,6 +54,7 @@ describe('DryBinary', () => {
     let binaryName: string;
     beforeAll(async () => {
       delete process.env[envName(ResolveConfigVariables.DOWNLOAD_DIR)]; // i dont know where this comes from, but without it, this property exists
+      process.env['INIT_CWD'] = undefined; // removing this, because it would mess with stuff - but still should be used when available (postinstall)
       tmpDir = tmp.dirSync({ prefix: 'mongo-mem-drybinGP-', unsafeCleanup: true });
       tmpDir2 = tmp.dirSync({ prefix: 'mongo-mem-drybinGP-', unsafeCleanup: true });
       jest