Performance of PolymerCli

[jogibear9988]

A Build with following options: (polymer.json)

{
  "sources": [
   "dist/**",
   "assets/resources/**",
   "assets/images/**"
  ],
  "extraDependencies": [],
  "builds": [
	{
	  "name": "HTML",
	  "browserCapabilities": ["es2015", "push", "serviceworker", "modules"],
	  "html": { "minify": true},
	  "css": { "minify": true},
	  "js": { "minify": true, "compile": false},
	  "bundle": {             
		"exclude": ["../libs/stimulsoft/" ], 
		"inlineCss": false,          
		"inlineScripts": true,       
		"rewriteUrlsInTemplates": false, 
		"sourcemaps": false,          
		"stripComments": true   
	  },
	  "addServiceWorker": false,
	  "addPushManifest": false
	}
  ],
  "moduleResolution": "node",
  "npm": true,
  "lint": {
	"rules": [
	  "polymer-3"
	]
  }
}

and following command

 call node --max-old-space-size=6144 node_modules\polymer-cli\bin\polymer build --verbose --root ../../bin/Debug/HTML --entrypoint index.html

needs about 25minutes (and I've to do it 3 times, cause I have 3 different html files)

Is there a way to increase this speed?

[smashah]

Mines just failed with a FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - Javascript heap out of memory on two separate systems.

I set bundle: false and it worked perfectly fine.

[jogibear9988]

yes, but then it‘s not bundeled...

[smashah]

@jogibear9988 this worked for me:
fsevents/fsevents#282 (comment)

Upgrade to node 12

[jogibear9988]

does this also increase performance?

[paresy]

We are seeing the same issue. Build times are increasing beyond sane limits.

[smashah]

No it doesn't increase performance. Still 3+ minutes up from usual. I'm going to try implement open-wc build suggestions soon-ish.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.