This patch was authored and released by @gwynne.

• Particularly useful for implementing a command-line option of the form --color=yes|no|auto (corresponding to setting the override to true, setting the override to false, and leaving it unset, respectively).
• When not building in Xcode, an attempt is made to determine whether output is to a terminal that can support escape codes and they are suppressed if the answer is no.
• Fixed some misaligned whitespace in --help's output.
• An EOF on stdin (such as by pressing Ctrl-D) no longer causes Console.choose() and Console.confirm() to go into an infinite loop of printing the prompt over and over.

Docs: https://docs.vapor.codes/4.0/logging/ https://docs.vapor.codes/4.0/commands/

More information on Vapor 4 official release: https://forums.swift.org/t/vapor-4-official-release-begins/34802

Updates to Swift 5.2 and macOS 10.15. Adds CI + README updates.

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.

Updates ConsoleLogger to remove unnecessary quotes from the logger metadata.

Before:

[ INFO ] GET /error ["request-id": "4B6C1861-FE36-494F-AFE3-0FF7DAAC9738"] (Vapor/Responder/DefaultResponder.swift:35)
[ ERROR ] TestError 500: This is a test. ["request-id": "4B6C1861-FE36-494F-AFE3-0FF7DAAC9738"] (Development/routes.swift:167)

After:

[ INFO ] GET /error [request-id: 4B6C1861-FE36-494F-AFE3-0FF7DAAC9738] (Vapor/Responder/DefaultResponder.swift:35)
[ ERROR ] TestError 500: This is a test. [request-id: 4B6C1861-FE36-494F-AFE3-0FF7DAAC9738] (Development/routes.swift:167)

This patch was authored and released by @tanner0101.

Implements shell completion script generation for bash and zsh, and adds a flag to Commands to use it right out of the box:

// main.swift

// ...
var commands = Commands(enableAutocomplete: true)
// ...
let group = commands.group(help: "My command-line application")
try console.run(group, using: input)
// ...

The CommandGroup created will have an autocomplete command (a GenerateAutocompleteCommand) that can be used to generate shell completion scripts for the entire command hierarchy and its command-line arguments:

Usage: <executable> autocomplete [--shell,-s] [--output,-o] [--quiet,-q]

Generate shell completion scripts for the executable

Options:
   shell Generate a completion script for SHELL [ bash | zsh ].
         Defaults to the "SHELL" environment variable if possible.
  output Write the completion script to the file at OUTPUT, overwriting its contents.
         Defaults to printing to stdout.

Flags:
   quiet Suppress any informational console output

Option and Argument signature values can optionally provide a CompletionAction. For example, in GenerateAutocompleteCommand.Signature:

@Option(
    name: "shell", 
    // ...
    completion: .values(of: Shell.self)
)
var shell: Shell?

@Option(
    name: "output",
    // ...
    completion: .files()
)
var output: String?

CompletionAction currently provides static factory methods for completing files (including directories), directories (excluding regular files), and a list of string values, as well as a convenience method for creating a list of values from a CaseIterable and LosslessStringConvertible type.

Previously, to generate ConsoleText you had to append strings using + and consoleText().

let name = "Vapor"
console.output("Hello " + name.consoleText())

Now, ConsoleText supports string interpolation.

console.output("Hello \(name)")

String interpolation also allows you to pass an optional style parameter for adding colors.

console.output("Hello \(name, style: .info)")

• Removed CommandConfiguration struct (#124)

Commands struct gained the use(_:as:) method previously on CommandConfiguration.

• Allow checking to see if an Optional is present in command call (#125)
• Enabled test discovery on Linux (#127))

• CommandError is now an enum. (#122)
• ConsoleLogger now stores the logging bootstrap's label during creation. (#123)

Notes: This change allows ConsoleLogger to print the label used for its creation when at .trace log level.

Maybe You Meant 'Beta'?

No, this isn't supposed to be a beta release; but we do have suggestions! Command suggestions at that! If pass in a command that doesn't exist, ConsoleKit will automatically check to see if there are any commands with a similar name and suggest that maybe you meant one of them instead.

A big thanks to @tkrajacic for implementing this feature!

• Added projectedValue to @Argument, @Option, and @Flag property wrappers. (#118)

Notes: This allows for the property wrapper backing for these signature arguments to be accessed from the command. To access, prefix the argument name with $.

• Command signatures are now declared using property wrappers (#116, #115)

Here's an example command signature using the new API:

struct Cowsay: Command {
    struct Signature: CommandSignature {
        @Argument(name: "message", help: "What the cow should say") 
        var message: String

        @Option(name: "eyes", short: "e", help: "Change the cow's eyes")
        var eyes: String?

        @Option(name: "tongue", short: "t", help: "Change the cow's tongue")
        var tongue: String?

        @Flag(name: "borg", help: "uses == for cow's eyes")
        var borg: Bool

        init() { }
    }

    let help = "Prints an ASCII cow with a message"

    func run(context: CommandContext, signature: Signature) throws {
        print(signature.message) // String
        print(signature.eyes) // String?
        print(signature.tongue) // String?
        print(signature.borg) // Bool
    }
}

• New type-erased protocols for Command and Group allow for dynamic commands to be implemented (#115, #113)

struct DynamicCommand: AnyCommand {
    var help: String = ""

    func run(using context: inout CommandContext) throws {
        XCTAssertEqual(context.input.arguments, ["true", "--count", "42"])
    }
}

More information on Vapor 4 alpha releases:

https://medium.com/@codevapor/vapor-4-alpha-1-releases-begin-94a4bc79dd9a

API Docs:

https://api.vapor.codes/console-kit/master/ConsoleKit/index.html

Fixed

• Only extract a short flag if the raw flag string is -<short> (https://github.com/vapor/console/pull/94)

New:

• Created CustomActivity activity indicator type. this lets you easily create custom activity indicators with a series of characters that are looped over for the animation.
• Added a customActivity method to the Console protocol, which initializes a new CustomActivity instance.

let indicator = context.console.customActivity(frames: ["⠋","⠙","⠹","⠸","⠼","⠴","⠦","⠧","⠇","⠏"])
_ = try indicator.start(on: context.container)
// Do something that takes a long time.
indicator.succeed()

Only logs command help when there are errors in command usage, no longer logs errors in the command execution.

Fixed:

• Fixes an issue where ephemeral messages would not clear correctly. (#80)

Fixed:

• Eliminate Swift 4.1 deprecation warnings.

New:

• -e short flag now supported for setting environment.

Fixed:

• Console.output(...) now correctly defaults to printing a newline (#70).

💻 Console 3.0 (APIs for creating interactive CLI tools) is here!

Getting Started: https://docs.vapor.codes/3.0/console/getting-started/ https://docs.vapor.codes/3.0/command/getting-started/ https://docs.vapor.codes/3.0/logging/getting-started/

API Docs: https://api.vapor.codes/console/latest/Console https://api.vapor.codes/console/latest/Command https://api.vapor.codes/console/latest/Logging

Changes since final pre-release.

New:

• Added ConsoleText type for creating collections of differently styled strings. This makes it possible to output text with interpolated styles in one call to console.output(_:)
• Cleaned up the loading and progress bars, now using an ActivityIndicator protocol.
• Added lots of missing docblocks, made some APIs internal where possible to reduce API surface.

Milestone: 3.0.0

New:

• Adds deprecated support for --option=value flag style.
• Adds CommandConfig and ConfiguredCommands structs

Fixed:

• Makes console.confirm non-throwing

API Docs: https://api.vapor.codes/console/3.0.0-rc.2.2/Command/

Milestone: 3.0.0-rc.2.2

New:

• Adds support for -y, --yes and -n, --no flags for auto-answering console confirmations.

New:

• Adds a commandLine settable computed property to Environment for parsing the environment's CLI arguments.

API Docs: https://api.vapor.codes/console/3.0.0-rc.2.1/Console/ https://api.vapor.codes/console/3.0.0-rc.2.1/Command/

Milestone: 3.0.0-rc.2.1

Fixed:

• Synchronizes printed log output to avoid garbled messages.

New:

• Vapor is now running on Swift NIO!

Fixed:

• Fixed an issue parsing short flags.

Milestone

Fixed:

• Update to latest core package.
• Update error structs.

Fixed:

• Remove Swift warnings.

Milestone