Single function deploy does not invoke the plugin

[HyperBrain]

I do not know if this is a problem with Serverless' lifecycle events or if it is a problem within the webpack plugin. If I try to upload a single function during development, using serverless deploy function -f auth the webpack build is not triggered and Serverless tries to upload the whole project which exceeds the upload file size limit of 70MB.

When deploying the complete service with serverless deploy the plugin is invoked correctly and the resulting function code ZIP is about 17MB.

Serverless: Deploying function: auth...
Serverless: Packaging function: auth...
Serverless: Uploading function: auth (90.02 MB)...

  Serverless Error ---------------------------------------

     Request must be smaller than 69905067 bytes for the
     UpdateFunctionCode operation

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

  Your Environment Information -----------------------------
     OS:                 win32
     Node Version:       4.3.1
     Serverless Version: 1.6.1

If it turns out that the problem is on Serverless' side, we should create an issue there.

[HyperBrain]

I analyzed the issue and found the root cause (also copied in the references serverless issue):

The webpack plugin is invoked on the 'before:deploy:createDeploymentArtifacts' and 'after:deploy:createDeploymentArtifacts' hooks, which are not exposed by the AWS function deploy core plugin (there only 'deploy:function:packageFunction' is available). That's why the webpack packing is not invoked at all in this case.

The correct solution would be to hook 'before:deploy:function:packageFunction' and package the requested function chunk.

[jdbevan]

I guess the difficulty here is determining which webpack entry points map to which services in the serverless config.

Hooking into the correct events is a lot easier.

[jtrein]

Any more progress on #110 ?

[HyperBrain]

Did not have time to investigate the problem with my PR further. Currently I am implementing parts of the new package/deploy mechanism in Serverless and try to keep it compatible with the existing plugins.
Nevertheless there will be big improvements in Serverless' lifecycle model that should make it a lot easier to support hooking multiple commands with one hook.
I will try to fix and test this during the lifecycle development.

[jtrein]

Appreciate the update!