waiwai-swiftpm-part2

Transcript

1. Daiki Matsudate / @d_date
   Θ͍Θ͍Swift PM
   Θ͍Θ͍swiftc
   

   View Slide

2. Swift PM 5.6 CHANGELOG
   

   View Slide

3. View Slide

4. SE-0303 SE-0325 Build Tool Plugins
   લճͷ͓͞Β͍
   • Ϗϧυதʹ࣮ߦ͢ΔπʔϧΛϓϥάΠϯͱͯ͠ఆٛͰ͖Δɻ

   e.g.) ίʔυੜ੒
   
   • Swift package / Xcode྆ํͰαϙʔτ͞Ε͍ͯΔ
   
   • App SandboxͷΈΞΫηεΛڐ༰ɻNetwork Access΋Ͱ͖ͳ͍ɻ
   https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
   

   View Slide

5. Examples
   SwiftGen - Plugin
   // swift-tools-version: 5.6
   
   
   import PackageDescription
   
   
   let package = Package(
   
   
   name: "SwiftGen",
   
   
   targets: [
   
   
   .plugin(
   
   
   name: "SwiftGenPlugin",
   
   
   capability: .buildTool(),
   
   
   dependencies: ["SwiftGen"]
   
   
   ),
   
   
   
   
   .binaryTarget(
   
   
   name: "SwiftGen",
   
   
   url: "https://url/to/the/built/swiftgen-executables.zip",
   
   
   checksum: "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
   
   
   ),
   
   
   ]
   
   
   )
   
   
   SwiftGen
   
   ᵓ Package.swift
   
   ᵓ Plugins
   
   │ └ SwiftGenPlugin
   
   │ └ plugin.swift
   
   └ Sources
   
   └ SwiftGen
   
   └ ...
   

   View Slide

6. SE-0305 Artifact archive bundle
   લճͷ͓͞Β͍
   • Swift ੡Ͱ͸ͳ͍ CLI πʔϧ͸ࣄલʹϏϧυ͓ͯ͘͠ඞཁ͕͋Δ
   
   • Target.binaryTargetͰ artifactbundle ܗࣜΛαϙʔτͯ͠ɺTarget
   triple͝ͱʹexecutableΛ഑ஔɾμ΢ϯϩʔυͰ͖ΔΑ͏ʹ͢Δ
   .artifactbundle
   
   ᵓ info.json
   
   ᵓ
   
   │ ᵓ
   
   │ │ ᵓ
   
   │ │ └ fi
   les>
   
   │ └
   
   │ ᵓ
   
   │ └ fi
   les>
   
   ᵓ
   
   │ └
   
   │ ᵓ
   
   │ └ fi
   les>
   
   │
   
   ᴽ └ᴻ
   

   View Slide

7. SE-0332 Command Plugins
   લճͷ͓͞Β͍
   • Tool version 5.6Ҏ߱Ͱɺcommand λΠϓͷ Package pluginΛهࡌͰ͖ΔΑ͏ʹͳ
   Γɺswift package subcommand Λར༻ͯ͠ݺͼग़ͤΔΑ͏ʹͳͬͨɻ
   
   • Prede
   fi
   ned: generateDocumentation, codeFormat
   
   • Custom: (Build Artifactͷ࡞੒ͳͲ)
   
   • Package manager΁ͷproxyΛ࢖ͬͯBuild / Test / Symbol graphͷऔಘ͕Ͱ͖Δ
   
   • ඞཁʹԠͯ͡ϢʔβʔʹڐՄΛٻΊΔ
   
   • writeToPackageDirectory
   https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
   

   View Slide

8. #3649 Enable lenient parsing of Git version tags
   • ηϚϯςΟοΫόʔδϣϯʹ͓͍ͯɺMajor ͱ Miner͚ͩΛؚΉ Git tag ʹର͠
   ͯґଘؔ܎ΛղܾͰ͖ΔΑ͏ʹͳͬͨɻ

   X.Y ͱ͍͏ tag ͸ X.Y.0 ͱͯ͠ѻΘΕɺطଘͷϦϙδτϦͷޓ׵ੑ͕վળ͞Ε
   Δɻ
   https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
   

   View Slide

9. #3686 Correct semantic version parsing and comparison
   • ηϚϯςΟοΫόʔδϣϯʹ͓͚Δߏจղੳͱൺֱ͕ SemVer 2.0.0ʹݫີʹश͏Α͏ʹͳͬͨɻ

   ઌߦ͢Δ + ͕ͳ͍৔߹ͷΈɺ- ΛVersion coreͱpre-release identi
   fi
   erͷ۠੾Γจࣈ (delimiter) ͱ͠
   ͯѻ͏Α͏ʹͳͬͨɻͦΕҎ֎ͷ৔߹͸ɺBuild metadata identi
   fi
   er ͷҰ෦ͱͯ͠ѻ͏Α͏ʹͳͬ
   ͨ

   

   ྫ) 1.2.3+some-meta.data

   ͍··Ͱ͸ɺ1.2.3+some Λ Version core, meta.data Λpre-release identi
   fi
   erͱ͍͕ͯͨ͠ɺ

   1.2.3 Λ Version core, some-meta.data Λ Build metadata ͱͯ͠औΓѻΘΕΔΑ͏ʹͳͬͨ
   
   • ൺֱʹ͍ͭͯ͸ɺBuild metadataΛແࢹͯ͠ɺMajor, Minor, Patch, Pre-release identi
   fi
   er ͕Ұக͠
   ͨ࣌ͷΈ౳͍͠΋ͷͱͯ͠ѻ͏
   https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
   

   View Slide

10. #3641 Deprecate name attribute on package dependencies
    • .package(name:, url:)͕ඇਪ঑ͱͳΓɺ.package(url:)Λར༻͢ΔΑ͏ʹਪ঑
    ͞ΕΔΑ͏ʹͳͬͨɻ
    

    Swift 5.5 ͰnameΛ໌ࣔతʹࢦఆ͠ͳͯ͘΋Α͘ͳͬͨͨΊ

    ※soft deprecated ͱͳ͍ͬͯΔ͕ɺݴޠ࢓্༷ deprecated ͸ deprecated
    
    • .package(url: String, exact: Version) ͕௥Ճ
    
    
    • ґଘཁ݅ͷ enum calling convention ͕ඇਪ঑ͱͳΓɺϥϕϧ෇͖Ҿ਺ͱͳΔ
    
    ◦.package(url: String, .branch(String)) -> .package(url: String, branch: String)
    
    
    ◦.package(url: String, .revision(String)) -> .package(url: String, revision: String)
    
    
    ◦.package(url: String, .exact(Version)) -> .package(url: String, exact: Version)
    https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
    

    View Slide

11. #3717 Update the resolved file format
    Package.resolved ͕ V2 ΁
    https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
    {
    
    
    "pins": [
    
    
    {
    
    
    "identity": "abseil-cpp-swiftpm",
    
    
    "kind": "remoteSourceControl",
    
    
    "location": "https://github.com/firebase/abseil-cpp-SwiftPM.git",
    
    
    "state": {
    
    
    "revision": "fffc3c2729be5747390ad02d5100291a0d9ad26a",
    
    
    "version": "0.20200225.4"
    
    
    }
    
    
    },
    
    
    {
    
    
    "identity": "aexml",
    
    
    "kind": "remoteSourceControl",
    
    
    "location": "https://github.com/tadija/AEXML",
    
    
    "state": {
    
    
    "revision": "38f7d00b23ecd891e1ee656fa6aeebd6ba04ecc3",
    
    
    "version": "4.6.1"
    
    
    }
    
    
    },
    
    
    ],
    
    
    "version": 2
    
    
    }
    
    
    {
    
    
    "object": {
    
    
    "pins": [
    
    
    {
    
    
    "package": "abseil",
    
    
    "repositoryURL": "https://github.com/firebase/abseil-cpp-SwiftPM.git",
    
    
    "state": {
    
    
    "branch": null,
    
    
    "revision": "fffc3c2729be5747390ad02d5100291a0d9ad26a",
    
    
    "version": "0.20200225.4"
    
    
    }
    
    
    },
    
    
    {
    
    
    "package": "AEXML",
    
    
    "repositoryURL": "https://github.com/tadija/AEXML",
    
    
    "state": {
    
    
    "branch": null,
    
    
    "revision": "38f7d00b23ecd891e1ee656fa6aeebd6ba04ecc3",
    
    
    "version": "4.6.1"
    
    
    }
    
    
    }
    
    
    ]
    
    
    },
    
    
    "version": 1
    
    
    }
    
    
    

    View Slide

12. #3717 Update the resolved file format
    https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
    

    View Slide

13. #3717 Update the resolved file format
    ݹ͍ToolchainͰ։͘
    https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
    

    View Slide

14. #3809 Implement TOFU for package downloads
    Trust-on-
    fi
    rst-use ( TOFU 📛 )Ͱ Package ͷηΩϡϦςΟڧԽ
    • PackageͷηΩϡϦςΟڧԽͷͨΊʹɺSwiftPM͸ trust-on-
    fi
    rst-use ( TOFU )
    validationΛߦ͏ɻ
    
    • Package ͕ Git repository / Package registry͔Β࠷ॳʹμ΢ϯϩʔυ͞Εͨͱ͖
    ʹɺPackage ͷ
    fi
    ngerprint ͕ه࿥͞ΕΔΑ͏ʹͳͬͨɻ
    
    • Package Registryͷ৔߹͸ɺsource archive checksum
    
    • Source controlͷ৔߹͸ɺGit revision
    
    • ޙଓͷμ΢ϯϩʔυʹ͸ɺҎલه࿥͞Εͨ஋ͱҰக͢Δ
    fi
    nger pin͕ඞཁɻ
    https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
    

    View Slide

15. #3670, #3901, #3942 Config file location changing
    Package.resolved ͕ V2 ΁
    • SE-0292 (Package registry)ͳͲʹΑͬͯɺcon
    fi
    gurationσΟϨΫτϦʹΑΓݎ
    ࿚ͳσΟϨΫτϦߏ଄͕ٻΊΒΕΔΑ͏ʹͳͬͨɻ
    
    • /.swiftpm/con
    fi
    g (mirrors
    fi
    le) -> /.swiftpm/con
    fi
    guration/mirrors.json
    
    • ~/.swiftpm/con
    fi
    g/collections.json (collection
    fi
    le) -> ~/.swiftpm/con
    fi
    guration/collections.json
    
    • Swift 5.6͕ࣗಈͰίϐʔͯ͠ɺϢʔβʔʹݹ͍΋ͷΛফ͢Α͏ʹwarningΛग़͢
    https://github.com/apple/swift-package-manager/blob/main/CHANGELOG.md#swift-56
    

    View Slide

16. View Slide

17. SE-0325 Additional Plugin APIs
    

    View Slide

18. Additional Package APIs
    • SE-0303ͷ TargetBuildContext Λ PluginContext ͱͯ͠Package graphશମͷ৘ใ
    ΛؚΉΑ͏ʹҰൠԽ͢Δɻ
    
    • PluginContextʹ͸Packageͷࢀর͕ఏڙ͞ΕΔͷͰɺϓϥάΠϯͷεΫϦϓτͰґ
    ଘ͢ΔαϒάϥϑʹΞΫηεͰ͖Δɻˠ Command Plugin
    
    • ༗޲ඇ८ճάϥϑ(DAG)Ͱ͋Δґଘؔ܎ΛτϙϩδΧϧιʔτ͢ΔΑ͏ͳAPI΋ఏڙ
    
    • ͦΕͧΕͷDependency TargetͷSearch PathΛؚΉίϚϯυϥΠϯҾ਺Λੜ੒
    ͢ΔΑ͏ͳχʔζʹରԠ͢Δ
    

    View Slide

19. Target
    Product
    

    View Slide

20. /// Represents a single product defined in a package.
    
    
    public protocol Product {
    
    
    /// Unique identifier for the product.
    
    
    var id: ID { get }
    
    
    typealias ID = String
    
    
    /// The name of the product, as defined in the package manifest. This name
    
    
    /// is unique among the products of the package in which it is defined.
    
    
    var name: String { get }
    
    
    /// The targets that directly comprise the product, in the order in which
    
    
    /// they are declared in the package manifest. The product will contain the
    
    
    /// transitive closure of the these targets and their dependencies. Some
    
    
    /// kinds of products have further restrictions on the set of targets (for
    
    
    /// example, an executable product must have one and only one target that
    
    
    /// defines the main entry point for an executable).
    
    
    var targets: [Target] { get }
    
    
    }
    
    
    

    View Slide

21. /// Represents a single target defined in a package.
    
    
    public protocol Target {
    
    
    /// Unique identifier for the target.
    
    
    var id: ID { get }
    
    
    typealias ID = String
    
    
    /// The name of the target, as defined in the package manifest. This name
    
    
    /// is unique among the targets of the package in which it is defined.
    
    
    var name: String { get }
    
    
    /// The absolute path of the target directory in the local file system.
    
    
    var directory: Path { get }
    
    
    /// Any other targets on which this target depends, in the same order as
    
    
    /// they are specified in the package manifest. Conditional dependencies
    
    
    /// that do not apply have already been filtered out.
    
    
    var dependencies: [TargetDependency] { get }
    
    
    }
    
    
    /// Represents a dependency of a target on a product or on another target.
    
    
    public enum TargetDependency {
    
    
    /// A dependency on a target in the same package.
    
    
    case target(Target)
    
    
    /// A dependency on a product in another package.
    
    
    case product(Product)
    
    
    }
    
    
    

    View Slide

22. extension Target {
    
    
    /// The transitive closure of all the targets on which the reciver depends,
    
    
    /// ordered such that every dependency appears before any other target that
    
    
    /// depends on it (i.e. in "topological sort order").
    
    
    public var recursiveTargetDependencies: [Target] {
    
    
    // FIXME: We can rewrite this to use a stack instead of recursion.
    
    
    var result = [Target]()
    
    
    var visited = Set()
    
    
    func visit(target: Target) {
    
    
    guard !visited.insert(target.id).inserted else { return }
    
    
    target.dependencies.forEach{ visit(dependency: $0) }
    
    
    result.append(target)
    
    
    }
    
    
    func visit(dependency: TargetDependency) {
    
    
    switch dependency {
    
    
    case .target(let target):
    
    
    visit(target: target)
    
    
    case .product(let product):
    
    
    product.targets.forEach{ visit(target: $0)
    
    
    }
    
    
    }
    
    
    }
    
    
    return result
    
    
    }
    
    
    }
    
    
    https://github.com/apple/swift-package-manager/pull/3758/
    fi
    les#di
    ff
    -79b44ed51fc53000c5d9cfd941b77065d03a99760a8b1ddd6cf5fafdc5f5835fR417-R440
    

    View Slide

23. Package Registry Service
    

    View Slide

24. git clone΍ΊͯSource ArchiveͰ؅ཧ͢Δ
    

    View Slide

25. SE-0292 Package Registry Service
    

    View Slide

26. SE-0292 Package Registry Service
    Accepted
    • DependencyͷdownloadʹιʔεϦϙδτϦͷURLΛࢦఆͯ͠gitΛ࢖͏ͷ͸ద͍ͯ͠ͳ͍
    
    • ࠶ݱੑ: όʔδϣϯλά͸͍ͭͰ΋ผίϛοτʹׂΓ౰ͯՄೳͳͷͰɺϏϧυ͞ΕͨλΠϛϯάʹΑͬͯҟͳΔ
    Ϗϧυ੒Ռ෺ʹͳΔՄೳੑ͕͋Δ
    
    • Մ༻ੑ: ϦϙδτϦ͸Ҡಈͨ͠Γ࡟আ͞ΕͨΓ͢Δ
    
    • ޮ཰: ύοέʔδͷ͢΂ͯͷόʔδϣϯ͕μ΢ϯϩʔυ͞Εͯ͠·͏
    
    • ଎౓: history͕େ͖͍ͱ஗͘ͳΔɻΫϩʔϯ͸αʔόʔʹ΋ΫϥΠΞϯτʹ΋ίετɻ
    
    • Package registry: RubyGems / PyPl / npm / crates.io
    
    • SwiftPMͷpackage registry͸gitΑΓ΋ߴ଎Ͱ৴པੑͷߴ͍ґଘؔ܎ղܾ͕๬ΊΔɻ
    
    • Package search, Security audit, local o
    ff
    l
    ine cache
    

    View Slide

27. Proposed solution
    • URLΛࢦఆ͢ΔͱɺϓϩδΣΫτͷPackage registryΛߏ੒Ͱ͖Δ
    
    • Swift PM͕Package.swiftʹهࡌ͞Εͨ֎෦ͷґଘؔ܎Λղܾ͢Δ
    
    • ֎෦ͷґଘؔ܎͸ scope.package-name ͷܗࣜͰهࡌ
    

    View Slide

28. Package registry service
    Method Path Description
    GET /{scope}/{name} List package releases
    GET /{scope}/{name}/{version} Fetch metadata for a package release
    GET /{scope}/{name}/{version}/Package.swift{?swift-version} Fetch manifest for a package release
    GET /{scope}/{name}/{version}.zip Download source archive for a package release
    GET /identi
    fi
    ers{?url} Lookup package identi
    fi
    ers registered for a URL
    

    View Slide

29. Changes to Swift Package Manager
    Package Identity
    • ݱࡏpackage ID͸URLͷlast path components
    
    • scope.package-name ʹมߋ͢Δ
    
    • scope͸namespaceͰ࠷େ39จࣈ
    
    • package-name͸scope಺ͷϢχʔΫͳ໊લͰ࠷େ100จࣈ
    

    View Slide

30. Changes to Swift Package Manager
    Dependency graph resolution
    • PackageContainerΛpackage
    resolutionͷtop-level unitͱ͢Δ
    
    • RegistryPackageContainer͕HTTPϦ
    ΫΤετͱಉ౳ͷૢ࡞Λߦ͏
    public protocol PackageContainer {
    
    
    /// The identifier for the package.
    
    
    var package: PackageReference { get }
    
    
    func isToolsVersionCompatible(at version: Version) -> Bool
    
    
    func toolsVersion(for version: Version) throws -> ToolsVersion
    
    
    /// Get the list of versions which are available for the package.
    
    
    ///
    
    
    /// The list will be returned in sorted order, with the latest version *first*.
    
    
    /// All versions will not be requested at once. Resolver will request the next one only
    
    
    /// if the previous one did not satisfy all constraints.
    
    
    func toolsVersionsAppropriateVersionsDescending() throws -> [Version]
    
    
    /// Get the list of versions in the repository sorted in the ascending order, that is the earliest
    
    
    /// version appears first.
    
    
    func versionsAscending() throws -> [Version]
    
    
    func versionsDescending() throws -> [Version]
    
    
    // FIXME: We should perhaps define some particularly useful error codes
    
    
    // here, so the resolver can handle errors more meaningfully.
    
    
    //
    
    
    /// Fetch the declared dependencies for a particular version.
    
    
    ///
    
    
    /// This property is expected to be efficient to access, and cached by the
    
    
    /// client if necessary.
    
    
    ///
    
    
    /// - Precondition: `versions.contains(version)`
    
    
    /// - Throws: If the version could not be resolved; this will abort
    
    
    /// dependency resolution completely.
    
    
    func getDependencies(at version: Version, productFilter: ProductFilter) throws -> [PackageContainerConstraint]
    
    
    /// Fetch the declared dependencies for a particular revision.
    
    
    ///
    
    
    /// This property is expected to be efficient to access, and cached by the
    
    
    /// client if necessary.
    
    
    ///
    
    
    /// - Throws: If the revision could not be resolved; this will abort
    
    
    /// dependency resolution completely.
    
    
    func getDependencies(at revision: String, productFilter: ProductFilter) throws -> [PackageContainerConstraint]
    
    
    /// Fetch the dependencies of an unversioned package container.
    
    
    ///
    
    
    /// NOTE: This method should not be called on a versioned container.
    
    
    func getUnversionedDependencies(productFilter: ProductFilter) throws -> [PackageContainerConstraint]
    
    
    /// Get the updated identifier at a bound version.
    
    
    ///
    
    
    /// This can be used by the containers to fill in the missing information that is obtained
    
    
    /// after the container is available. The updated identifier is returned in result of the
    
    
    /// dependency resolution.
    
    
    func loadPackageReference(at boundVersion: BoundVersion) throws -> PackageReference
    
    
    }
    
    
    

    View Slide

31. Changes to Swift Package Manager
    Tasks performed by Swift Package Manager during dependency resolution
    Task Git operation Registry request
    Fetch the contents of a package git clone && git checkout GET /{scope}/{name}/{version}.zip
    List the available tags for a
    package
    git tag GET /{scope}/{name}
    Fetch a package manifest git clone GET /{scope}/{name}/{version}/Package.swift
    

    View Slide

32. Appendix: HTTPClient in SwiftPM
    • Apple/swift-package-managerͷSources/Basics/HTTPClient
    
    • ඪ४తͳHTTPClientͷ࣮૷ͱͯ͠Α͍͔΋
    
    • ͦͷଞSwiftPM΍llbuildͷcommon infrastructure ͱͯ͠ apple/swift-tools-support-core ͱ͍͏ͷ΋͋Δ
    
    • https://github.com/apple/swift-tools-support-core
    

    View Slide

33. Changes to Package.resolved
    • Swift Package Registry΁ͷϦϦʔε͸ZipϑΝΠϧͱͯ͠ΞʔΧΠϒ͞ΕΔɻ
    
    • ֎෦ύοέʔδͷґଘؔ܎͕RegistryΛհͯ͠μ΢ϯϩʔυ͞ΕΔͱɺPackage.resolvedͷchecksum
    ͱɺswift package compute-checksumίϚϯυͷchecksumͱൺֱ͢ΔɻPackage.resolvedʹͳ͚Ε͹
    ௥هɻ
    $ swift package compute-checksum LinkedList-1.2.0.zip
    
    1feec3d8d144814e99e694cd1d785928878d8d6892c4e59d12569e179252c535
    
    {
    
    
    "object": {
    
    
    "pins": [
    
    
    {
    
    
    "package": "mona.LinkedList",
    
    
    "state": {
    
    
    "checksum": "ed008d5af44c1d0ea0e3668033cae9b695235f18b1a99240b7cf0f3d9559a30d",
    
    
    "version": "1.2.0"
    
    
    }
    
    
    }
    
    
    ]
    
    
    },
    
    
    "version": 1
    
    
    }
    
    
    

    View Slide

34. Changes to Package.resolved
    • Checksum͕ҟͳ͍ͬͯΕ͹ɺμ΢ϯϩʔυΛڋ൱͢Δɻ
    $ swift build
    
    error: checksum of downloaded source archive of dependency
    'mona.LinkedList' (c2b934fe66e55747d912f1cfd03150883c4f037370c40ca2ad4203805db79457) does not
    match checksum speci
    fi
    ed by the manifest
    (ed008d5af44c1d0ea0e3668033cae9b695235f18b1a99240b7cf0f3d9559a30d)
    

    View Slide

35. Archive-source subcommand
    • ଞͷPackage ManagerͷࣄྫΛݟΔͱɺChecksumͷෆҰக͸ɺِ଄΍ഁଛΑΓ΋ɺArchiveͷ࡞੒΍ɺ
    ChecksumͷෆҰக͕ݪҼͷ͜ͱͷํ͕ଟ͍
    
    • swift package archive-source ίϚϯυ͸ඪ४ͷsource archiveΛ࡞੒͢Δํ๏Λఏڙ͢Δ
    SYNOPSIS
    
    swift package archive-source [--output=<
    fi
    le>]
    
    OPTIONS
    
    -o <
    fi
    le>, --output=<
    fi
    le>
    
    Write the archive to <
    fi
    le>.
    
    If unspeci
    fi
    ed, the package is written to `\(PackageName).zip`.
    

    View Slide

36. Archive-source subcommand
    • ίϚϯυΛrootͰ࣮ߦ͢ΔͱɺݱࡏͷWorking treeͷsource archiveΛ࡞੒͢Δ
    $ tree -a -L 1
    
    LinkedList
    
    ᵓ── .git
    
    ᵓ── Package.swift
    
    ᵓ── README.md
    
    ᵓ── Sources
    
    └── Tests
    
    $ head -n 5 Package.swift
    
    // swift-tools-version:5.3
    
    import PackageDescription
    
    let package = Package(
    
    name: "LinkedList",
    
    $ swift package archive-source
    
    Created LinkedList.zip
    

    View Slide

37. Archive-source subcommand
    • σϑΥϧτͰ͸ɺ.zip ʹͳΔɻ- - outputͰมߋՄೳ
    
    • Archive-source ͸git-archive ʹzip formatΛࢦఆ͠ɺdefault compression levelΛࢦఆͨ͠΋ͷͱಉ౳ɻ

    Note: export-ignoreଐੑͷϑΝΠϧ͸ແࢹ͞ΕΔɻ.git΍.buildͷΑ͏ͳӅ͠ϑΝΠϧ / σΟϨΫτϦ΋ؚ
    Ήɻ
    $ git checkout 1.2.0
    
    $ swift package archive-source --output="LinkedList-1.2.0.zip"
    
    # Created LinkedList-1.2.0.zip
    $ git archive --format zip \
    
    --pre
    fi
    x LinkedList-1.2.0
    
    --output LinkedList-1.2.0.zip \
    
    1.2.0
    

    View Slide

38. Registry configuration subcommands
    swift package-registry set
    • GitHubͷΑ͏ͳPublic RegistryҎ֎ʹCustom RegistryΛߏ੒͢ΔαϒίϚϯυ
    
    • ηϧϑϗετ͍ͨ͠Private Package͕͋Δ
    
    • ϛϥʔαΠτΛཱ͍ͯͨ৔߹
    
    • ঝೝ͢ΈύοέʔδͷΈΛར༻ͤ͞ΔϙϦγʔΛద༻ͤ͞Δ৔߹
    
    • ύοέʔδͷར༻ঢ়گͷޮՌଌఆΛߦ͍ɺϥϯΩϯά΍ϥΠηϯεྉۚΛ੥ٻ͢Δ৔߹
    SYNOPSIS
    swift package-registry set [options]
    OPTIONS:
    --global Apply settings to all projects for this user
    --scope Associate the registry with a given scope
    --login Specify a user name for the remote machine
    --password Supply a password for the remote machine
    

    View Slide

39. Registry configuration subcommands
    swift package-registry set
    • PackageͷRootͰ࣮ߦ͢Δͱɺ.swiftpm/con
    fi
    guration/registries.json ϑΝΠϧ͕࡞੒͞ΕΔ
    
    • είʔϓ͕ࢦఆ͞Ε͍ͯͳ͍৔߹͸ [default] ʹͳΔɻ
    
    • ྫ͑͹ɺ֎෦΁ͷωοτϫʔΫ઀ಠΛڐՄ͠ͳ͍ϏϧυαʔόʔͰ͸ɺInternal registry service Λར༻
    ͯ͠ґଘؔ܎Λղܾ͢ΔΑ͏ʹRegistry URLΛߏ੒͢Δ
    $ swift package-registry set https://internal.example.com/
    {
    
    
    "registries": {
    
    
    "[default]": {
    
    
    "url": "https://internal.example.com"
    
    
    }
    
    
    },
    
    
    "version": 1
    
    
    }
    
    
    

    View Slide

40. Registry configuration subcommands
    Associating a registry with a scope
    • scopeΦϓγϣϯΛ͚ͭͯPackageͷscopeΛࢦఆ͢ΔͱɺΧελϜϨδε
    τϦʹؔ࿈෇͚͢Δ͜ͱ͕Ͱ͖Δɻ
    
    • ΧελϜϨδετϦ͕Package scopeͱؔ࿈෇͚͞Ε͍ͯΔͱɺͦͷείʔ
    ϓͱͷύοέʔδͷґଘؔ܎͸ɺఏڙ͞ΕͨURLΛհͯ͠ղܾ͞ΕΔɻ

    ྫ) 

    example.Foo → Package Registryͷexample scopeΛར༻

    Foo → git URLΛར༻

    $ swift package-registry set https://internal.example.com/ - -scope example
    {
    
    
    "registries": {
    
    
    "example": {
    
    
    "url": "https://internal.example.com"
    
    
    }
    
    
    },
    
    
    "version": 1
    
    
    }
    
    
    

    View Slide

41. Registry configuration subcommands
    Unsetting a custom registry
    • ΧελϜϨδετϦΛղআ͢Δ
    SYNOPSIS
    swift package-registry unset [options]
    OPTIONS:
    --global Apply settings to all projects for this user
    --scope Removes the registry's association to a given scope
    

    View Slide

42. Registry configuration subcommands
    Global registry con
    fi
    guration
    • GlobalΦϓγϣϯΛ͚ͭΔͱɺ~/.swiftpm/con
    fi
    guration/registries.json Λߋ৽͢Δ
    
    • Local Con
    fi
    guration ͸ GlobalΑΓ༏ઌ͞ΕΔ

    ྫ) foo scope͸ https://local.example.com Λར༻͢Δ
    
    • ΧϨϯτσΟϨΫτϦͷPackageϚχϑΣετ (./Package.swift)
    
    • طଘͷlock
    fi
    le (./Package.resolved)
    
    • Local con
    fi
    guration (./.swiftpm/con
    fi
    guration/registries.json)
    
    • Global con
    fi
    guration (~/.swiftpm/con
    fi
    guration/registries.json)
    SYNOPSIS
    swift package-registry unset [options]
    OPTIONS:
    --global Apply settings to all projects for this user
    --scope Removes the registry's association to a given scope
    // Global configuration (~/.swiftpm/configuration/registries.json)
    
    
    {
    
    
    "registries": {
    
    
    "[default]": {
    
    
    "url": "https://global.example.com"
    
    
    },
    
    
    "foo": {
    
    
    "url": "https://global.example.com"
    
    
    },
    
    
    },
    
    
    "version": 1
    
    
    }
    
    
    // Local configuration (.swiftpm/configuration/registries.json)
    
    
    {
    
    
    "registries": {
    
    
    "foo": {
    
    
    "url": "https://local.example.com"
    
    
    }
    
    
    },
    
    
    "version": 1
    
    
    }
    
    
    

    View Slide

43. Registry configuration subcommands
    Credential
    • - - login / - -password ΦϓγϣϯΛ౉͢ͱɺΫϨσϯγϟϧΛఏڙͰ͖Δ
    
    • login ΩʔΛؚΉ registries.json ͷରԠ͢ΔΦϒδΣΫτʹ౉͞Εͨ஋Λ࣋ͭΩʔ͕௥Ճ͞ΕΔɻ
    
    • .netrcϑΝΠϧʹಛఆͷϚγϯͱϩάΠϯͷطଘͷΤϯτϦ͕͋Ε͹ɺpassword͕ߋ৽͞ΕΔɻ
    $ swift package-registry set https://internal.example.com/ \
    --login jappleseed --password alpine
    $ cat .netrc
    machine internal.example.com
    login jappleseed
    password alpine
    {
    
    
    "registries": {
    
    
    "[default]": {
    
    
    "url": "https://internal.example.com"
    
    
    "login": "jappleseed"
    
    
    }
    
    
    },
    
    
    "version": 1
    
    
    }
    
    
    

    View Slide

44. Changes to config subcommand
    Set-mirror option for package identi
    fi
    ers
    • ݱࡏઃఆͰ͖Δset-mirrorίϚϯυʹ —original-urlΛஔ͖׵͑—package-identi
    fi
    erΦϓγϣϯΛ௥Ճ
    
    • .swiftpm/con
    fi
    guration/mirrors.json ϑΝΠϧΛੜ੒͢Δ
    $ swift package con
    fi
    g set-mirror \
    --original-url https:///github.com/mona/linkedlist \
    --mirror-url https:///github.com/octocorp/swiftlinkedlist
    {
    
    
    "object": [
    
    
    {
    
    
    "mirror": "https://github.com/OctoCorp/
    SwiftLinkedList.git",
    
    
    "original": "mona.LinkedList"
    
    
    }
    
    
    ],
    
    
    "version": 1
    
    
    }
    
    
    

    View Slide

45. SE-0321 Package Registry
    Service Publish Point
    

    View Slide

46. Package Registry Service Publish Point
    • SE-0292͸ύοέʔδΛfetch͢ΔΤϯυϙΠϯτΛఆ͕ٛͨ͠ɺެ։ํ๏ʹ͍ͭͯ͸ఆٛ͠ͳ͔ͬͨ
    
    • ৽͍͠ϦϦʔεΛPackage registryʹެ։͢ΔͨΊͷඪ४ΤϯυϙΠϯτΛ༻ҙͯ͠ɺαʔϏεϓϩόΠ
    μؒͷ૬ޓӡ༻ੑΛߴΊΔ
    Method Path Description
    PUT /{scope}/{name}/{version} Create a package release
    

    View Slide

47. Package Registry Service Publish Point
    • swift package archive-source ͰzipϑΝΠϧΛ࡞੒͢Δɻ
    
    • ࣍ͷϦΫΤετΛߦͳͬͯɺϦϦʔεΛΞοϓϩʔυ͢Δ
    
    • ϨδετϦ͕ϦΫΤετʹԠ౴͠ɺόʔδϣϯΛར༻Մೳʹͨ͠ΒɺGETͰऔಘͰ͖Δ
    $ curl -X PUT --netrc \
    
    -H "Accept: application/vnd.swift.registry.v1+json" \
    
    -F source-archive="@LinkedList-1.1.1.zip" \
    
    "https://registry.example.com/mona/LinkedList?version=1.1.1"
    

    View Slide

48. Security
    • ֎෦ʹґଘؔ܎͕͋Ε͹߈ܸର৅ྖҬ͕૿Ճ͢Δ͕ɺϦεΫ͸ܰݮͰ͖ɺGitΛ࢖͏ΑΓ΋҆શͰηΩϡϦςΟ͕อ
    ূͰ͖Δ
    
    • Package scopeͷจࣈηοτ͸ݶఆ͞Ε͓ͯΓɺϗϞάϥϑ߈ܸΛ๷͙
    
    • ಉ͡จࣈʹݟ͑ͯҧ͏จࣈίʔυͷจࣈΛར༻ِͯ͠ͷURLʹ༠ಋ͢Δख๏
    
    • ઌ಄ɺ຤ඌɺ࿈ଓͷϋΠϑϯΛېࢭɻΞϯμʔείΞ͸׬શʹېࢭɻ
    
    • .ͷېࢭɻείʔϓͷυϝΠϯόϦΞϯτͱͷޡղΛ๷͙ʢapple.com͸ແޮɻappleͱࠞಉͰ͖ͳ͍ʣ
    
    • ύοέʔδ͸είʔϓ಺ʹొ࿥͞ΕɺλΠϙεΫϫοτΛܰݮ͢ΔɻޡղΛট͘Α͏ͳείʔϓͷׂΓ౰ͯΛ੍
    ݶ͢ΔʢG00gleͳͲʣ
    
    • ۟ಡ఺΍ۭനจࣈ͸ΫϩεαΠτεΫϦϓςΟϯά΍ɺCRLFΠϯδΣΫγϣϯΛট͘ͷͰېࢭɻ
    

    View Slide

49. STRIDE
    • ͜ͷϓϩϙʔβϧʹ͓͚ΔηΩϡϦςΟͷӨڹͷཧղͷͨΊʹɺSTRIDEχʔϞχοΫΛར༻͢Δɻ
    ڴҖ ৵֐͢ΔγεςϜಛੑ
    Spoo
    fi
    ng (ͳΓ͢·͠)
    Authenticity (ਅਖ਼ੑ)
    Tampering (վ͟Μʣ Integrity (׬શੑ)
    Repudiation (൱ೝ) Non-repudiation (൱ೝ๷ࢭʣ
    Information disclosure (৘ใ࿙Ӯʣ Con
    fi
    dentiality (ػີੑ)
    Denial of serviceʢαʔϏεڋ൱ʣ
    Availability (Մ༻ੑ)
    Elevation of privilegeʢಛݖͷঢ֨ʣ Authorization (ೝՄ)
    

    View Slide

50. STRIDE
    Spoo
    fi
    ngʢͳΓ͢·͠ʣ
    • ߈ܸऀ͸ɺΫϥΠΞϯτͱύοέʔδϨδετϦͷؒʹϓϩΩγΛૠೖͯ͠ɺͦͷϗετͷࢿ֨৘ใΛ๣ड͠ɺͦΕΒΛ
    ࢖༻ͯ͠ޙଓͷཁٻͰϢʔβʔʹͳΓ͢·͢Մೳੑ͕͋Γ·͢ɻ
    
    • ͜ΕΒͷࢿ֨৘ใʹؔ࿈෇͚ΒΕ͍ͯΔಛݖͷൣғͱϨϕϧʹΑͬͯ͸ɺ͜ͷ߈ܸͷӨڹ͕େ͖͘ͳΔՄೳੑ͕͋Γ·
    ͢ɻͨͩ͠ɺHTTPSΛհͨ҆͠શͳ઀ଓͷ࢖༻͸ɺશମతͳϦεΫΛܰݮ͢Δͷʹେ͍ʹ໾ཱͪ·͢ɻ
    
    • Swift Package Manager͸ɺ࣍ͷରࡦΛߨ͡Δ͜ͱͰɺ͜ͷϦεΫΛ͞ΒʹܰݮͰ͖·͢ɻ
    
    • ͢΂ͯͷURLʹHTTPSΛద༻͢Δ
    
    • DNS over HTTPSʢDoHʣΛ࢖༻ͨ͠URLͷղܾ
    
    • Punycodeͱͯ͠ද͞ΕΔࠃࡍԽυϝΠϯ໊ʢIDNʣͷURLΛཁٻ͢Δ
    
    • Publish͢Δࡍ͸ϦΫΤετʹଟཁૉೝূΛར༻͢Δ͜ͱΛਪ঑͢Δ
    

    View Slide

51. STRIDE
    Tampering (վ͟Μ)
    • ߈ܸऀ͸ɺΫϥΠΞϯτͱύοέʔδϨδετϦͷؒʹϓϩΩγΛૠೖͯ͠ɺѱҙͷ͋ΔίʔυΛؚΉ
    ZipϑΝΠϧΛ࡞੒ͯ͠ૹ৴͢ΔՄೳੑ͕͋Γ·͢ɻ
    
    • ͜ͷΑ͏ͳ߈ܸͷӨڹ͸જࡏతʹߴ͘ͳΓ·͕͢ɺμ΢ϯϩʔυ͞ΕͨιʔεΞʔΧΠϒͷ੔߹ੑΛݕ
    ূ͢ΔͨΊʹ҉߸ԽνΣοΫαϜΛ࢖༻͢Δ͜ͱͰɺϦεΫ͸େ෯ʹܰݮ͞Ε·͢ɻ
    
    • ੔߹ੑνΣοΫ͚ͩͰ͸ɺύοέʔδِ͕଄Ͱ͸ͳ͍͜ͱΛอূͰ͖·ͤΜɻ߈ܸऀ͸ϗετͷWebα
    ΠτΛةݥʹ͞Β͠ɺѱҙͷ͋Δύοέʔδʹ༗ޮͳνΣοΫαϜΛఏڙ͢ΔՄೳੑ͕͋Γ·͢ɻ
    $ echo "$(swift package compute-checksum LinkedList-1.2.0.zip) *LinkedList-1.2.0.zip" | \
    shasum -a 256 -c -
    LinkedList-1.2.0.zip: OK
    

    View Slide

52. STRIDE
    Tampering (վ͟Μ) ʹର͢ΔTOFUϞσϧ
    • Package.resolvedʹTrust on First UseʢTOFUʣηΩϡϦςΟϞσϧΛఏڙ͠·͢ɻ͜ΕʹΑΓɺ௕ظʹ
    ΘͨΔґଘؔ܎ͷ੔߹ੑʹ͍ͭͯڧྗͳอূΛఏڙͰ͖·͢ɻϨδετϦ͸ɺಁաϩάɺ νΣοΫαϜ
    σʔλϕʔεɺ·ͨ͸ύοέʔδͷ಺༰Λೝূ͢ΔͨΊͷผͷಉ౳ͷվ͟Μ๷ࢭγεςϜΛ࣮૷͢Δ͜
    ͱʹΑΓɺ͜ͷϞσϧΛ͞ΒʹվળͰ͖·͢ ɻ
    
    • ZipϑΝΠϧΛհͨ͠ύοέʔδͷ഑෍͸ɺ৽͍͠જࡏతͳ߈ܸϕΫτϧΛ΋ͨΒ͠·͢ɻͨͱ͑͹ɺ߈
    ܸऀ͸ɺZip SlipͷΑ͏ͳط஌ͷ੬ऑੑɺ·ͨ͸Zipര஄ʹର͢ΔײडੑͷΑ͏ͳҰൠతͳιϑτ΢ΣΞ
    ͷऑ఺Λѱ༻͠Α͏ͱͯ͠ɺੜ੒͞ΕͨSource ArchiveΛѱҙΛ࣋ͬͯվ͟Μ͢ΔՄೳੑ͕͋Γ·͢ɻ
    
    • Swift Package Manager͸ɺSource Archive decompression ͷ࣮૷ʹ͓͍ͯɺ͜ΕΒͷछྨͷ߈ܸΛࣝ
    ผͯ͠อޢ͢ΔΑ͏ʹ஫ҙ͢Δඞཁ͕͋Γ·͢ɻ
    

    View Slide

53. STRIDE
    Repudiation (൱ೝ)
    • ৵֐͞Εͨϗετ͸ɺ༗ޮͳνΣοΫαϜΛ࢖༻ͯ͠ѱҙͷ͋ΔύοέʔδΛఏڙ͠ɺِ଄΁ͷؔ༩Λ൱ఆ
    Ͱ͖ͳ͍Մೳੑ͕͋Γ·͢ɻ
    
    • ͜ͷڴҖ͸ɺόΠφϦ͓ΑͼSource Artifactʹݻ༗ͷ΋ͷͰ͢ɻGitϦϙδτϦ͸ཤྺΛ؂ࠪ͢Δ͜ͱ͕Ͱ
    ͖ɺݸʑͷίϛοτ͸࡞੒ऀʹΑͬͯ҉߸Ͱॺ໊͞ΕΔ৔߹͕͋Γ·͢ɻArtifactͱSource treeͷίϛοτ
    ͷؒʹ௚઀઀ଓΛཱ֬Ͱ͖ͳ͍ݶΓɺͦͷArtifactͷग़ॴΛ൑அ͢Δํ๏͸͋Γ·ͤΜɻ
    
    • Git-archive(1) ʹΑͬͯੜ੒͞ΕͨιʔεΞʔΧΠϒʹ͸HEADɺίϝϯτͱͯ͠ίϛοτͷνΣοΫαϜ͕
    ؚ·Ε͍ͯ·͢ɻϓϩδΣΫτͷཤྺ͕ར༻ՄೳͰ͋ΓɺιʔεΞʔΧΠϒͷੜ੒ʹ࢖༻͞ΕΔίϛοτ͕
    GPGͰॺ໊͞Ε͍ͯΔ৔߹͸ɺ҉߸Խॺ໊Λ࢖༻ͯ͠৴པੑΛݕূͰ͖·͢
    
    • ͦΕҎ֎ͷ৔߹ɺνΣοΫαϜσʔλϕʔεͱσδλϧॺ໊ͷ࢖༻ͷ྆ํͰɺಉ༷ͷ൱ೝ๷ࢭͷอূ͕ఏڙ
    ͞Ε·͢ɻ
    

    View Slide

54. $ git rev-parse HEAD
    
    b7c37c81f164e5dce0f64e3d75c79a48fb1fe00b3
    
    $ swift package archive-source -o LinkedList-1.2.0.zip
    
    Generated LinkedList-1.2.0.zip
    
    $ zipnote LinkedList-1.2.0.zip | grep "@ (zip
    fi
    le comment below this line)" -A 1 | tail -n 1
    
    b7c37c81f164e5dce0f64e3d75c79a48fb1fe00b3
    
    $ git verify-commit b7c37c81f164e5dce0f64e3d75c79a48fb1fe00b3
    
    gpg: Signature made Tue Dec 16 00:00:00 2020 PST
    
    gpg: using RSA key BFAA7114B920808AA4365C203C5C1CF
    
    gpg: Good signature from "Mona Lisa Octocat " [ultimate]
    

    View Slide

55. STRIDE
    Information disclosure (৘ใ࿙Ӯ)
    • Ϣʔβʔ͸ɺϓϩδΣΫτͷߏ੒ϑΝΠϧΛνΣοΫΠϯ͢Δ͜ͱʹΑΓɺޡͬͯΫϨσϯγϟϧΛެ։͢ΔՄೳੑ
    ͕͋Γ·͢ɻ߈ܸऀ͸ɺߏ੒ϑΝΠϧͷެ։ίʔυϦϙδτϦΛऔಘ͠ɺࢿ֨৘ใΛ࠶ར༻ͯ͠ϢʔβʔͷͳΓ͢·
    ͠ΛࢼΈΔՄೳੑ͕͋Γ·͢ɻ
    
    • ΫϨσϯγϟϧΛϓϩδΣΫτσΟϨΫτϦͷ֎෦ʢ௨ৗ͸ϢʔβʔͷϗʔϜσΟϨΫτϦʣʹ͋Δ.netrcϑΝΠϧ
    ʹอଘ͢Δ͜ͱͰɺ࿙Ӯ͢ΔϦεΫΛݮΒͤ·͢ɻ͔͠͠ɺϢʔβʔ͸swift packageίϚϯυʹ —netrc-
    fi
    leΦϓ
    γϣϯΛ͚ͭΔ͜ͱͰɺϓϩδΣΫτͷ.netrcϑΝΠϧΛࢦఆ͢Δ͔΋͠Ε·ͤΜɻ͜ͷϦεΫΛܰݮ͢ΔͨΊʹɺ
    swift package initͰϓϩδΣΫτΛ࡞੒͢Δͱ͖ʹ.gitignoreʹ.netrcΛ௥Ճ͠·͢ɻ
    
    • ϗεςΟϯάϓϩόΠμ͸Public repositoryʹίϛοτ͞Ε͍ͯΔsecretΛݕग़͢Δ͜ͱʹΑΓɺ͜ͷϦεΫΛ࠷খ
    ݶʹ཈͑Δ͜ͱ͕Ͱ͖·͢
    
    • ΫϨσϯγϟϧ͸Swift PM΍ଞͷπʔϧͷϩάͰҙਤͤͣ։ࣔ͞ΕΔ͜ͱ͕͋Γ·͢ɻදࣔ͞ΕΔࡍ͸ɺϢʔβʔ໊
    ΍ύεϫʔυΛฤूͯ͠ݟͤͳ͍Α͏ʹ͢Δඞཁ͕͋Γ·͢ɻ
    

    View Slide

56. STRIDE
    Denial of Service (αʔϏεڋ൱)
    • ߈ܸऀ͸ΧελϜϨδετϦΛఆٛ͢Δ .swiftpm/con
    fi
    guration/registires.jsonΛεΫϨΠϐϯά͠ɺͦ
    ͷϦιʔεͷՄ༻ੑΛ௿Լͤ͞ΔαʔϏεڋ൱߈ܸΛߦ͏Մೳੑ͕͋Γ·͢ɻ
    
    • Ұൠతʹɺ͜ͷ߈ܸͷՄೳੑ͸௿͍Ͱ͕͢ɺॏཁੑ͕ߴ͘ɺίετ͕͔͔ΔϦιʔεʹରͯ͠తΛߜͬ
    ͯ͘ΔՄೳੑ͕ߟ͑ΒΕ·͢ɻ
    
    • ͜ͷछྨͷ߈ܸ͸ɺ.gitignoreʹ .swiftpm/con
    fi
    gurationΛ௥Ճ͢Δ͜ͱͰܰݮͰ͖·͢ɻ
    

    View Slide

57. STRIDE
    Elevation of privilegeʢಛݖͷঢ֨ʣ
    • ৴པͰ͖Δ࡞੒ऀ͔Βͷຊ෺ͷύοέʔδͰ͑͞ɺѱҙͷ͋ΔίʔυΛؚΉՄೳੑ͕͋Γ·͢ɻ
    
    • ίʔυ෼ੳπʔϧ͸ɺγεςϜݖݶ΍ͦͷଞͷOSϨϕϧͷηΩϡϦςΟػೳͱಉ༷ʹ͋Δఔ౓໾ཱͪ·
    ͢ɻͨͩ͠ɺ։ൃऀ͸ɺϢʔβʔʹPublish͢Δίʔυʹରͯ͠࠷ऴతͳ੹೚Λෛ͍·͢ɻ
    

    View Slide

58. Package Registry
    Summary
    • GitΛ࢖ΘͣʹɺಛఆͷίϛοτͷιʔεΞʔΧΠϒͷμ΢ϯϩʔυʹͳΔͷ
    Ͱɺґଘղܾ͕ૣ͘ͳΔՄೳੑ͕ߴ͍
    
    • ΧελϜϨδετϦΛߏங͢Δ͜ͱͰɺެ։ϨδετϦΛར༻Ͱ͖ͳ͍Ϣʔε
    έʔεʹ΋ରԠ͢Δ
    
    • ScopeΛಋೖ͢Δ͜ͱͰɺར༻͢ΔϦιʔεΛ۠ผ͢Δ͜ͱ͕Ͱ͖Δ
    
    • Author͕શͯGitHubͷํʑ
    

    View Slide