Warn if there are multiple manifest files

[michaelglass]

fixes parts of #559

When, somehow, there are two potential manifest files, raise a warning before picking the first one.

[rails-bot]

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[schneems]

I'm good with this warning. Looks like you need a rebase. Can we also add the name of the manifest file that is being selected to the warning?

[michaelglass]

@schneems

[envygeeks]

Is this meant to be backwards compatible or a breaking change? In that I’m getting bug reports about argument errors, for jekyll-assets manifest, but it seems that this pull defaults the second argument?

[schneems]

Supposed to be backwards compat. Can you tag me on some of your issues please? Do any of them have a reproduction “example app”?

On Fri, May 24, 2019 at 5:27 PM Jordon Bedwell ***@***.***> wrote: Is this meant to be backwards compatible or a breaking change? In that I’m getting bug reports about argument errors, for jekyll-assets manifest, but it seems that this pull defaults the second argument? — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#560?email_source=notifications&email_token=AAAOSYH6Z3PLEZ43U5ZNROLPXBTV3A5CNFSM4FHHDXQKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGODWGV6SA#issuecomment-495804232>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAAOSYC6XCMISXBOEVH26SDPXBTV3ANCNFSM4FHHDXQA> .

-- Richard Schneeman https://www.schneems.com

[envygeeks]

When I’m at my laptop in the morning I’ll tag you in the issue I got and put up an example app!