Swift SPM

2017-02-15 Kommentare

SPM
SPM Usage

仿照教學，建立 system lib(libgit2)，並且在另一個專案引用 libgit2

產生 swift proj
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swift package init --type executable # [empty|library|executable|system-module]
產生 XCode 專案
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swift package \
	-Xcc -std=c89 \
	-Xswiftc -I/usr/local/include/git2 \
	-Xlinker -L/usr/local/lib \
	generate-xcodeproj
tree
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├── Package.swift
├── Sources
│   └── Hello.swift
└── Tests
    ├── HelloTests
    │   └── HelloTests.swift
    └── LinuxMain.swift

Require System Libraries (libgit2)

首先要先安裝 libgit2，可自行選擇手動安裝或利用 brew

手動安裝
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# https://libgit2.github.com/
# Adding set(CMAKE_MACOSX_RPATH 1) into CMakeLists.txt
mkdir build && cd build
# cmake .. -DCMAKE_INSTALL_PREFIX=/install/prefix
cmake .. \
	-DCMAKE_OSX_ARCHITECTURES="i386;x86_64" \
	-DLIB_INSTALL_DIR=/usr/local/lib \
	-DINCLUDE_INSTALL_DIR=/usr/local/include 
cmake --build . --target install

# clean
rm /usr/local/lib/libgit2.0.25.1.dylib
rm /usr/local/lib/libgit2.25.dylib
rm /usr/local/lib/libgit2.dylib
rm /usr/local/lib/pkgconfig/libgit2.pc
rm /usr/local/include/git2.h
rm -rf /usr/local/include/git2
套件軟體安裝
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brew install libgit2

建立 System Lib (Clibgit)

swift package init --type system-module

Package.swift
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import PackageDescription

let package = Package(
    name: "Clibgit",
    pkgConfig: "libgit2"
)
module.modulemap
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module Clibgit [system] {
  header "/usr/local/include/git2.h"
  link "git2"
  export *
}
tag 版本(Clibgit)
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git init
git add .
git commit -m "Initial Commit"
git tag 1.0.0

開始引用 System Lib

swift package init --type executable

Package.swift
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import PackageDescription

let package = Package(
    name: "example",
    dependencies: [
        .Package(url: "../Clibgit", majorVersion: 1)
    ]
)
main.swift
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import Clibgit

let options = git_repository_init_options()
print(options)

執行

swift build -Xlinker -L/usr/local/lib/ && .build/debug/example

產生 XCode 專案

swift package -Xcc -std=c89 -Xswiftc -I/usr/local/include/git2 -Xlinker -L/usr/local/lib generate-xcodeproj

REPL include Clibgit

swift -I Clibgit

PackageDescription

Package
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Package(
    name: String,
    pkgConfig: String? = nil, 					// pkg-config (.pc), for system modules
    providers: [SystemPackageProvider]? = nil,
    targets: [Target] = [],
    dependencies: [Package.Dependency] = [],
    exclude: [String] = []
)
Target
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Target(name: "Bar", dependencies: ["Foo"])
Package.Dependency
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.Package(url: "ssh://git@example.com/Greeter.git", versions: Version(1,0,0)..<Version(2,0,0)),
.Package(url: "../StringExtensions", "1.0.0"),
.Package(url: "https://github.com/MyAwesomePackage", majorVersion: 1, minor: 4),
exclude
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exclude: ["Sources/Fixtures", "Sources/readme.md", "Tests/FooTests/images"]
pkgConfig
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pkgConfig: "gtk+-3.0" // gtk+-3.0.pc, 從環境變數 PKG_CONFIG_PATH 下搜尋
Provider
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 providers: [
	.Brew("gtk+3"),
	.Apt("gtk3")
]

待 …

.Package
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```

``` swift Version