Added userInfo context, config, test

This patch was authored by @tib and released by @tanner0101.

• Added the ability to config userInfo on app.leaf.
• The userInfo dictionary is now accessible for custom leaf tags
• See testContextUserInfo for more info

Tags config, files protocol, and context passing

This patch was authored and released by @tanner0101.

Adds new Leaf configuration options, including custom tags, to application.

app.leaf.tags["foo"] = FooTag()
app.leaf.files = TestFiles()
app.leaf.configuration.rootDirectory = "/"

Adds support for passing Request and Application to LeafKit's userInfo storage.

struct FooTag: LeafTag {
    func render(_ context: LeafContext) throws -> LeafData {
        context.request // Request?
        context.application // Application?
        ...
    }
}

These will be set automatically when using app.view or req.view.

Release Candidate 1

Updates to Swift 5.2.

Release candidates represent the final shift toward focusing on bug fixes and documentation. Breaking changes will only be accepted for critical issues. We expect a final release of this package shortly after Swift 5.2's release date.

Make app.leaf.cache settable

LeafCache is now settable (#155, fixes #154).

app.leaf.cache.isEnabled = false

This patch was authored and released by @tanner0101.

Allow Optional values when encoding

Removes force unwrapping in the LeafEncoder allowing for types to be Optional.

This patch was authored by @namolnad and released by @loganwright.

Beta 3 Update

This patch was authored and released by @gwynne.

• Update to match new Vapor requirements for OS
• Require current Vapor beta version
• Leaf's major beta version has been bumped due to the new OS requirement (a breaking change), even though there are no changes to Leaf itself

Leaf 4.0.0 Beta 2

• Updated to latest LeafKit and Vapor beta 2 releases (#149)

Configuration changes:

import Leaf
import Vapor

// beta.1
app.use(LeafProvider())

// beta.2
app.views.use(.leaf)

Rendering changes:

// beta.2
app.get("test-file") { req in
    req.view.render(#file, ["foo": "bar"])
}

Leaf 4.0.0 Beta 1

Merge pull request #144 from vapor/tn-beta-1

beta 1

Leaf 4.0.0 Alpha 1.2

• Fixed an issue with NIOThreadPool service being unavailable (#141)

Leaf 4.0.0 Alpha 1.1

Fixed:

• Use tagged LeafKit version.