components: Update Schematics to version 8 fails with Out-of-Memory exception

Reproduction

Steps to reproduce: 0. Start with a “large” Angular v7 workspace

1. Update @angular/core etc to v8
2. Run ng update @angular/material

“Large” is a relative term, of course. We’re using a monorepo style workspace (using the Nrwl’s NX tools) for our Angular Applications. We have 390 *.component.ts and *.directive.ts files.

Expected Behavior

The update to successfully run the upgrade schematics.

Actual Behavior

After it installs the @angular/material and @angular/cdk packages this is displayed to the terminal:

    ** Executing migrations for package '@angular/cdk' **

<--- Last few GCs --->

[15728:0000017D08BC7A90]   978327 ms: Mark-sweep 2016.3 (2069.9) -> 2000.2 (2069.9) MB, 772.3 / 0.0 ms  (average mu = 0.273, current mu = 0.240) allocation failure scavenge might not succeed
[15728:0000017D08BC7A90]   979306 ms: Mark-sweep 2016.2 (2069.9) -> 2000.4 (2070.4) MB, 720.2 / 0.0 ms  (average mu = 0.269, current mu = 0.264) allocation failure scavenge might not succeed


<--- JS stacktrace --->

==== JS stack trace =========================================

    0: ExitFrame [pc: 00007FF600E82C16]
Security context: 0x03f554a193e1 <JSObject>
    1: createScanner [000003B48610A701] [C:\git\Daktronics-Web-Platform\node_modules\typescript\lib\typescript.js:~7066] [pc=000002E34F358EE6](this=0x01dc41080509 <Object map = 0000028D62B90EE9>,1,0x02b136100709 <false>,0,0x03ce79b0e971 <String[425]\: `.control-container {\r\n  background: linear-gradient(var(--background-standard), var(--background-standa...

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory

Writing Node.js report to file: report.20190529.132332.15728.0.001.json
Node.js report completed
 1: 00007FF60033674F napi_wrap+120927
 2: 00007FF6002DFE26 uv_loop_fork+44550
 3: 00007FF6002E0CC6 uv_loop_fork+48294
 4: 00007FF600618BCE private: void __cdecl v8::internal::Parser::ReportMessageAt(struct v8::internal::Scanner::Location,enum v8::internal::MessageTemplate,class v8::internal::AstRawString const * __ptr64,enum v8::internal::ParseErrorType) __ptr64+206
 5: 00007FF6005ECC4A public: void __cdecl v8::internal::wasm::StreamingDecoder::NotifyCompilationEnded(void) __ptr64+666
 6: 00007FF60068309C public: class v8::internal::HeapObject __cdecl v8::internal::Heap::CreateFillerObjectAt(unsigned __int64,int,enum v8::internal::ClearRecordedSlots,enum v8::internal::ClearFreedMemoryMode) __ptr64+2972
 7: 00007FF60068AE0F public: void __cdecl v8::internal::LocalEmbedderHeapTracer::NotifyV8MarkingWorklistWasEmpty(void) __ptr64+5375
 8: 00007FF600681483 public: bool __cdecl v8::internal::Heap::CollectGarbage(enum v8::internal::AllocationSpace,enum v8::internal::GarbageCollectionReason,enum v8::GCCallbackFlags) __ptr64+1235
 9: 00007FF60067FB84 public: void __cdecl v8::internal::GCTracer::AddScopeSample(enum v8::internal::GCTracer::Scope::ScopeId,double) __ptr64+1316
10: 00007FF6006C07B3 public: class v8::internal::Handle<class v8::internal::HeapObject> __cdecl v8::internal::Factory::NewFillerObject(int,bool,enum v8::internal::AllocationSpace) __ptr64+67
11: 00007FF6009E76E6 public: void __cdecl v8::internal::OptimizingCompileDispatcher::Unblock(void) __ptr64+116966
12: 00007FF600E82C16 public: static class v8::internal::Vector<char const > __cdecl v8::internal::NativesCollection<0>::GetScriptsSource(void)+662454

I uploaded the report.json to a Gist here.

This ends up running for a long time. The NodeJS process continually increases memory usage until it crosses the 2GB threshold and then fails out. Unfortunately I can’t share link to a reproducing repository.

I also tried running this on an old Mac laptop we have in the office (late 2011), and it failed with a similar Out of Memory error.

Since I can’t upload a reproducing repo, please let me know if there’s any other information that can help!

Environment

Angular CLI: 8.0.0 Node: 12.3.1 OS: win32 x64 Angular: 8.0.0 … animations, cdk, cli, common, compiler, compiler-cli, core … forms, language-service, material, platform-browser … platform-browser-dynamic, router

Package Version

@angular-devkit/architect 0.800.0 @angular-devkit/build-angular 0.800.0 @angular-devkit/build-ng-packagr 0.800.0 @angular-devkit/build-optimizer 0.800.0 @angular-devkit/build-webpack 0.800.0 @angular-devkit/core 8.0.0 @angular-devkit/schematics 8.0.0 @ngtools/json-schema 1.1.0 @ngtools/webpack 8.0.0 @schematics/angular 8.0.0 @schematics/update 0.800.0 ng-packagr 5.2.0 rxjs 6.5.2 typescript 3.4.5 webpack 4.30.0