Generate Xcode project at custom path

[czechboy0]

Added a switch --xcodeproj-path to customize in which folder swiftpm generates the Xcode project.

• works for both relative and absolute paths
• switch shortcut -P
• pass --xcodeproj-path Foo in project Bar to generate ./Foo/Bar.xcodeproj

[mxcl]

Probably doesn’t need a switch. In generate mode, if you specify a path, it uses that path.

$ swift build -X
generated: ./SwiftPM.xcodeproj
$ swift build -X foo
generated: foo/SwiftPM.xcodeproj
$ swift build -X foo/bar.xcodeproj
generated: foo/bar.xcodeproj

Thoughts?

edit: though this would require more work with our options parser. I'd accept a less thorough PR though that only checks after the -X.

[czechboy0]

Sure, I prefer being explicit, but I don't have a problem with changing it to what you're proposing. I don't think it'll be more work on the parser than this, tbh.

Should I change it?

[czechboy0]

Okay @mxcl, I simplified it, it's ready.

[mxcl]

Sure, I prefer being explicit

I understand, but this seems pretty conventional. For example, you don't have to be explicit with git clone:

git clone http://foo/bar.git clonePath

And IMO that would actually benefit from a -o due to there being 2 named parameters, with our single optional named parameter I think it's fairly intuitive.

[mxcl]

If you could squash the history I'll merge 👍🏻

[czechboy0]

Squashed.

[aciidgh]

mistake ?

[czechboy0]

Great catch, thanks!

[czechboy0]

Shortened the usage information & squashed. Ready for your 👀

[aciidgh]

Looks good to me, need CI's approval 😄

[mxcl]

@swift-ci Please test

[mxcl]

Strictly this does not do:

$ swift build -X foo/bar.xcodeproj
generated: foo/bar.xcodeproj

Which I think would be nice.

[czechboy0]

@mxcl Good point. Fixed by #189.