pod try doesn't work for repositories without .xcodeproj files

[weissi]

• [x] I've read and understood the CONTRIBUTING guidelines and have done my best effort to follow.

Report

What did you do?

pod try SwiftNIO

What did you expect to happen?

Xcode opening up with a project where I can try SwiftNIO

What happened instead?

$ pod try SwiftNIO
Updating spec repositories

Trying SwiftNIO
[!] Unable to find any project in the source files of the Pod: `/private/var/folders/k8/7d0p_dxx2ll8vnw5mt5__ddc0000gn/T/CocoaPods/Try/SwiftNIO`

which (thanks @dnkoutso) is because we don't ship an .xcodeproj. Maybe cocoapods-try should try to generate one using swift package generate-xcodeproj?

CocoaPods Environment

Stack

   CocoaPods : 1.5.3
        Ruby : ruby 2.3.7p456 (2018-03-28 revision 63024) [universal.x86_64-darwin18]
    RubyGems : 2.5.2.3
       Xcode : 10.0 (10A243)
         Git : git version 2.17.0
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ d5477981560bd851f8aa66dd2db6a2bfd4251e1b

Installation Source

Executable Path: /usr/local/bin/pod

Plugins

cocoapods-deintegrate : 1.0.2
cocoapods-plugins     : 1.0.0
cocoapods-search      : 1.0.0
cocoapods-stats       : 1.0.0
cocoapods-trunk       : 1.3.0
cocoapods-try         : 1.1.0

Project that demonstrates the issue

n/a

[dnkoutso]

For anyone who opens this see https://github.com/CocoaPods/CocoaPods/issues/8019

[dnkoutso]

We should make pod try utilize pod gen if it cant find a project to use.