enable spm

[quanvo87]

i changed the file structure to make it easy to enable SPM. this also resulted in:

• updated Podspec, not sure if correct
• travis originally failed, so I made the changes you see. They seem to run the test and pass...do you know the diff between what you did and what I put?

[quanvo87]

the only real changes were the podspec and travis. everything else is a change because its location was moved.

[dingwilson]

Overall everything looks great. Left a quick point about testing re: .travis.yml. Not sure how we should proceed/what we should test.

PS: might want to gitignore .DS_Store

[dingwilson]

This change tests for mac Swift 4 compatibility, and removes iOS 8-11 testing.

1. We've proven that existing code is compatible with iOS 8-11, and so we can remove these tests. However, it might be a good idea to keep iOS testing for potential future changes. What do you think?

OTOH the current iOS tests run so slowly... 👎

2. Do we want to do linux Swift 4 testing? I'm not sure if this is necessary, as we don't use any libraries (i.e. foundation).

[quanvo87]

What is the difference between swift 4 and iOS 8-11? If it's important then yea let's keep testing for them even though they're slow.

I think it could be worth it to test on Linux. Then we would be adding Linux compatibility. It's currently not. I think what this would take is writing a script that installs swift 4.

[dingwilson]

I believe that testing for Swift 4 implies support for iOS 8-11. I think it should probably be fine if we don't explicitly test individual versions of iOS.

Yes, I think we would have to install Swift toolchains on a Linux env.

[quanvo87]

Ok sounds good. I'll make Linux support a separate issue for later.

[quanvo87]

I'll add ds_store to gitignore!

The ds_store related files currently checked in to the repo can be safely removed, right?

[dingwilson]

Yes, you should be able to remove the .DS_Store files.

[quanvo87]

Once travis is done can you merge? Let's see if this broke cocoapods

[dingwilson]

LGTM