Make 🖼 with SPM #roppongiswift/make_image_with_spm

Roppongi.swift #3で発表してきた内容です。
Swift Package Managerで画像を生成する事にトライしました。

Transcript

1. Make
   !
   with SPM
   Roppongi.swift #3
   © fromkk 2018 1
   

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2. Who is me?
   Kazuya Ueoka
   iOS application engineer in
   Timers inc.
   Twitter: @fromkk
   Github: fromkk
   Qiita: fromkk
   © fromkk 2018 2
   

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3. લఏ
   • macOS High Sierra
   • Xcode 9.3
   © fromkk 2018 3
   

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4. ݕ౼ͨ͠πʔϧ
   • Imagemagick
   • GD Graphics Library
   © fromkk 2018 4
   

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5. ࠓճ͸ GD Λར༻
   © fromkk 2018 5
   

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6. ԿނAppKit࢖Θͳ͍ͷ͔
   • GDͳΒLinux͔ΒͰ΋ར༻ग़དྷΔҝ
   © fromkk 2018 6
   

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7. GDͷΠϯετʔϧ
   brew install gd
   © fromkk 2018 7
   

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8. Swift͔ΒCݴޠͷϥΠϒϥϦΛར༻͢Δ
   © fromkk 2018 8
   

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9. module.modulemap Λ࡞੒
   mkdir ./GD && cd $_
   touch module.modulemap
   © fromkk 2018 9
   

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10. module.modulemap ಺༰
    module GD [system] {
    header "/usr/local/include/gd.h"
    header "/usr/local/include/gdfontt.h"
    header "/usr/local/include/gdfonts.h"
    header "/usr/local/include/gdfontl.h"
    header "/usr/local/include/gdfontg.h"
    header "/usr/local/include/gdfontmb.h"
    link "gd"
    export *
    }
    © fromkk 2018 10
    

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11. ಉ͡֊૚ʹ Package.swift Λ࡞੒
    import PackageDescription
    let package = Package(
    name: "GD",
    pkgConfig: "gdlib",
    providers: [
    .brew(["gd"])
    ]
    )
    © fromkk 2018 11
    

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12. GitͰλά෇͚
    git init .
    git add .
    git commit -m "Initial commit"
    git tag 0.0.1 -m "Initial commit"
    © fromkk 2018 12
    

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13. ϓϩδΣΫτΛ࡞੒
    cd ../ && mkdir ./MyProject && cd $_
    swift package init --type executable
    © fromkk 2018 13
    

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14. Package.swift Λฤू
    import PackageDescription
    let package = Package(
    name: "MyProject",
    dependencies: [
    .package(url: "../GD", from: "0.0.1"),
    ],
    targets: [
    .target(
    name: "MyProject",
    dependencies: []),
    ]
    )
    © fromkk 2018 14
    

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15. Ұ౓Ϗϧυ͢Δ
    swift build
    ↓
    Fetching /PATH/TO/GD
    Cloning /PATH/TO/GD
    Resolving /PATH/TO/GD at 0.0.1
    Compile Swift Module 'MyProject' (1 sources)
    Linking ./.build/x86_64-apple-macosx10.10/debug/MyProject
    GD ͕ϑΣον͞ΕͯͪΌΜͱϏϧυ͞Ε͍ͯΔࣄΛ֬ೝ
    © fromkk 2018 15
    

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16. XcodeprojΛ࡞੒
    swift package generate-xcodeproj
    © fromkk 2018 16
    

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17. ϑΥϧμߏ੒
    tree .
    .
    ├── GD
    │ ├── Package.swift
    │ └── module.modulemap
    └── MyProject
    ├── MyProject.xcodeproj
    │ ├── project.pbxproj
    │ ├── project.xcworkspace
    │ │ ├── contents.xcworkspacedata
    │ │ ├── xcshareddata
    │ │ │ └── IDEWorkspaceChecks.plist
    │ │ └── xcuserdata
    │ │ └── fromkk.xcuserdatad
    │ │ └── UserInterfaceState.xcuserstate
    │ ├── xcshareddata
    │ │ └── xcschemes
    │ │ ├── MyProject-Package.xcscheme
    │ │ └── xcschememanagement.plist
    │ └── xcuserdata
    │ └── fromkk.xcuserdatad
    │ └── xcschemes
    │ └── xcschememanagement.plist
    ├── Package.resolved
    ├── Package.swift
    ├── README.md
    ├── Sources
    │ └── MyProject
    │ └── main.swift
    └── Tests
    © fromkk 2018 17
    

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18. GDͷجૅ
    © fromkk 2018 18
    

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19. ը૾৽ن࡞੒
    import GD
    let width: Int32 = 640
    let height: Int32 = 480
    let image = gdImageCreateTrueColor(width, height)
    © fromkk 2018 19
    

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20. ը૾อଘ
    import GD
    let handler = fopen("path/to/image.png", "wb")
    defer { fclose(handler) }
    gdImagePng(image, handler)
    © fromkk 2018 20
    

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21. ը૾߹੒
    import GD
    let file = fopen("copy/image/path.png", "rb")
    defer { fclose(file) }
    let copyImage = gdImageCreateFromPng(file)
    gdImageCopy(image, copyImage, dstX, dstY, srcX, srcY, width, height)
    © fromkk 2018 21
    

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22. จࣈྻΛॻ͖ࠐΉ
    import GD
    let blackColor = gdImageColorAllocate(image, 0, 0, 0)
    defer { gdImageColorDeallocate(image, blackColor) }
    let text = UnsafeMutablePointer(mutating: "hogehoge")
    gdImageString(image, gdFontGetSmall(), x, y, text, blackColor)
    © fromkk 2018 22
    

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23. ࡞ͬͯΈͨπʔϧ
    https://github.com/fromkk/TestSummaries
    XCTestͷUIςετͷ݁ՌΛΠΠײ͡Ͱݟ͍ͨ(Qiita)
    Πϯετʔϧํ๏
    brew install fromkk/TestSummaries/testsummaries
    © fromkk 2018 23
    

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24. Demo
    © fromkk 2018 24
    

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25. ݁Ռ
    © fromkk 2018 25
    

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26. ·ͱΊ
    • XCTestͰࡱͬͨεΫγϣΛը૾ʹ·ͱΊͯνʔϜʹڞ༗ग़
    དྷΔ༷ʹ͠·ͨ͠
    • Homebrew͔Β୭Ͱ΋Πϯετʔϧग़དྷ·͢
    • ·ͩ·ͩաڈͷࢿ࢈Λ׆༻͢ΔࣄͰศརͳπʔϧ͸࡞ΕΔ
    © fromkk 2018 26
    

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27. PR 1
    © fromkk 2018 27
    

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28. © fromkk 2018 28
    

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29. © fromkk 2018 29
    

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30. © fromkk 2018 30
    

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31. PR 2
    © fromkk 2018 31
    

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32. https://pre-wwdc.connpass.com/event/83346/
    © fromkk 2018 32
    

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33. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠
    © fromkk 2018 33
    

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