SE-0201: Package Manager Local Dependencies

Evolution Proposal Reviews
10

+1. As I stated in the pitch phase I would prefer the following syntax:

public static func package(localPath: String) -> Package.Dependency
public static func package(url: String, from version: Version) -> Package.Dependency
public static func package(url: String, from version: Version, localPath: Bool) -> Package.Dependency

The last version would be equivalent to a package with two dependencies (one repository-like dependency and the preferred local one), so this:

dependencies: [
    .package(url: "https://github.com/pvieito/PythonKit", .branch("master"), localPath: "../PythonKit")
],

Would be equivalent to this:

dependencies: [
    .package(url: "https://github.com/pvieito/PythonKit", .branch("master")),
    .package(localPath: "../PythonKit")
],