lib: reset the cwd cache before execution

PR-URL: #49684 Reviewed-By: Antoine du Hamel <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: LiviaMedeiros <[email protected]> Reviewed-By: Joyee Cheung <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]>

Author: arcanis

lib/internal/bootstrap/switches/does_own_process_state.js

@@ -2,6 +2,12 @@
 
 constcredentials=internalBinding('credentials');
 constrawMethods=internalBinding('process_methods');
+const{
+namespace: {
+ addSerializeCallback,
+ isBuildingSnapshot,
+},
+}=require('internal/v8/startup_snapshot');
 
 process.abort=rawMethods.abort;
 process.umask=wrappedUmask;
@@ -107,6 +113,12 @@ function wrapPosixCredentialSetters(credentials){
 // directory is changed by `chdir`, it'll be updated.
 letcachedCwd='';
 
+if(isBuildingSnapshot()){
+addSerializeCallback(()=>{
+cachedCwd='';
+});
+}
+
 functionwrappedChdir(directory){
 validateString(directory,'directory');
 rawMethods.chdir(directory);

test/fixtures/snapshot/cwd.js

@@ -0,0 +1,10 @@
+const{
+ setDeserializeMainFunction,
+}=require('v8').startupSnapshot;
+
+// To make sure the cwd is present in the cache
+process.cwd();
+
+setDeserializeMainFunction(()=>{
+console.log(process.cwd());
+});

test/parallel/test-snapshot-cwd.js

@@ -0,0 +1,47 @@
+'use strict';
+
+// This tests that process.cwd() is accurate when
+// restoring state from a snapshot
+
+require('../common');
+const{ spawnSyncAndExitWithoutError }=require('../common/child_process');
+consttmpdir=require('../common/tmpdir');
+constfixtures=require('../common/fixtures');
+constfs=require('fs');
+
+tmpdir.refresh();
+constblobPath=tmpdir.resolve('snapshot.blob');
+constfile=fixtures.path('snapshot','cwd.js');
+
+constsubdir=tmpdir.resolve('foo');
+fs.mkdirSync(subdir);
+
+{
+// Create the snapshot.
+spawnSyncAndExitWithoutError(process.execPath,[
+'--snapshot-blob',
+blobPath,
+'--build-snapshot',
+file,
+],{
+cwd: tmpdir.path,
+encoding: 'utf8'
+},{
+status: 0,
+});
+}
+
+{
+spawnSyncAndExitWithoutError(process.execPath,[
+'--snapshot-blob',
+blobPath,
+file,
+],{
+cwd: subdir,
+encoding: 'utf8'
+},{
+status: 0,
+trim: true,
+stdout: subdir,
+});
+}