Error with multiple runtimes

[dennistruemper]

This is a Bug Report

Description

If you try to add a second runtime (in my example golang) for a new Lambda, you get following error:
TypeError [ERR_INVALID_ARG_TYPE]: The "to" argument must be of type string. Received undefined
in
node_modules/serverless-webpack/lib/validate.js:199:36
because the plugin tries to use the golang lambda to do webpack stuff.

If you just filter the functions for runtimes starting with node fixes the problem.

//  Lookup associated Serverless functions
        const allEntryFunctions = _.map(
          this.serverless.service.getAllFunctions().map(
            funcName =>this.serverless.service.getFunction(funcName) )
            .filter(func => func.runtime.startsWith('node')), func => {
          const handler = func.handler;
          const handlerFile = path.relative('.', getHandlerFile(handler));
          const runtime = func.runtime
          return {
            handlerFile,
            funcName: func.name,
            func,
          };
        });

Additional Data

• Serverless-Webpack Version you're using: 5.3.5

• Webpack version you're using: 4.44.2

• Serverless Framework Version you're using: 2.4.0

• Operating System: Windows 10 WSL, so I guess linux?

• Stack Trace (if available):
  Type Error ---------------------------------------------

  TypeError [ERR_INVALID_ARG_TYPE]: The "to" argument must be of type string. Received undefined
  at validateString (internal/validators.js:120:11)
  at Object.relative (path.js:1054:5)
  at /home/dennis/go/src/sportsplaner/node_modules/serverless-webpack/lib/validate.js:199:36
  at arrayMap (/home/dennis/go/src/sportsplaner/node_modules/lodash/lodash.js:639:23)
  at Function.map (/home/dennis/go/src/sportsplaner/node_modules/lodash/lodash.js:9580:14)
  at processConfig (/home/dennis/go/src/sportsplaner/node_modules/serverless-webpack/lib/validate.js:196:37)
  at ServerlessWebpack.validate (/home/dennis/go/src/sportsplaner/node_modules/serverless-webpack/lib/validate.js:245:14)
  From previous event:
  at Object.webpack:validate:validate [as hook] (/home/dennis/go/src/sportsplaner/node_modules/serverless-webpack/index.js:152:63)
  at /home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:510:55
  From previous event:
  at PluginManager.invoke (/home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:510:22)
  at PluginManager.spawn (/home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:530:17)
  at ServerlessWebpack. (/home/dennis/go/src/sportsplaner/node_modules/serverless-webpack/index.js:93:53)
  From previous event:
  at Object.before:package:createDeploymentArtifacts [as hook] (/home/dennis/go/src/sportsplaner/node_modules/serverless-webpack/index.js:93:12)
  From previous event:
  at PluginManager.invoke (/home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:510:22)
  at PluginManager.spawn (/home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:530:17)
  at /home/dennis/go/src/sportsplaner/node_modules/serverless/lib/plugins/deploy/deploy.js:122:50
  From previous event:
  at Object.before:deploy:deploy [as hook] (/home/dennis/go/src/sportsplaner/node_modules/serverless/lib/plugins/deploy/deploy.js:102:22)
  at /home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:510:55
  From previous event:
  at PluginManager.invoke (/home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:510:22)
  at /home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:545:24
  From previous event:
  at PluginManager.run (/home/dennis/go/src/sportsplaner/node_modules/serverless/lib/classes/PluginManager.js:545:8)
  at /home/dennis/go/src/sportsplaner/node_modules/serverless/lib/Serverless.js:168:33
  From previous event:
  at Serverless.run (/home/dennis/go/src/sportsplaner/node_modules/serverless/lib/Serverless.js:155:74)
  at /home/dennis/go/src/sportsplaner/node_modules/serverless/scripts/serverless.js:50:26
  at processImmediate (internal/timers.js:456:21)
  at process.topLevelDomainCallback (domain.js:137:15)
  From previous event:
  at Object. (/home/dennis/go/src/sportsplaner/node_modules/serverless/scripts/serverless.js:50:4)
  at Module._compile (internal/modules/cjs/loader.js:1138:30)
  at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10)
  at Module.load (internal/modules/cjs/loader.js:986:32)
  at Function.Module._load (internal/modules/cjs/loader.js:879:14)
  at Module.require (internal/modules/cjs/loader.js:1026:19)
  at require (internal/modules/cjs/helpers.js:72:18)
  at Object. (/home/dennis/go/src/sportsplaner/node_modules/serverless/bin/serverless.js:47:1)
  at Module._compile (internal/modules/cjs/loader.js:1138:30)
  at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10)
  at Module.load (internal/modules/cjs/loader.js:986:32)
  at Function.Module._load (internal/modules/cjs/loader.js:879:14)
  at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
  at /home/dennis/.nvm/versions/node/v12.17.0/lib/node_modules/npm/node_modules/libnpx/index.js:268:14

  Get Support --------------------------------------------
  Docs: docs.serverless.com
  Bugs: github.com/serverless/serverless/issues
  Issues: forum.serverless.com

  Your Environment Information ---------------------------
  Operating System: linux
  Node Version: 12.17.0
  Framework Version: 2.4.0 (local)
  Plugin Version: 4.0.4
  SDK Version: 2.3.2
  Components Version: 3.2.1

[dennistruemper]

My configuration hat no runtime set in provider package, every function had it set individually. My solution crashes if provider runtime is set. So it is not a solution.
I tried to fix this for all cases, but then I started to see, that every provider has to be checked.
I will just fix my special case and link in here as inspiration for someone to fix it completely.