如何在终端中使用Swift

Question

我在Xcode 6_beta.app中添加了Swift的环境路径并使用了Swift。

就像这样。

export PATH=$PATH:/Applications/Xcode6-Beta.app/Contents/DeveloperToolchains/XcodeDefault.xctoolchain/usr/bin

但我发现了这篇文章如何在终端中使用Swift

哪一个更好呢？

- ryo

Answer 1

我通过 xcrun 使用它：

$ xcrun swift -v -o test test.swift
Swift version 1.0 (swift-600.0.34.4.5)
Target: x86_64-apple-darwin14.0.0
/Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c -primary-file test.swift -enable-objc-attr-requires-objc-module -target x86_64-apple-darwin14.0.0 -module-name test -sdk /Applications/Xcode6-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk -color-diagnostics -o /var/folders/2p/rs8p19s957ggyxzntnj3tp_40000gn/T/test-bb5ff8.o
/usr/bin/ld /var/folders/2p/rs8p19s957ggyxzntnj3tp_40000gn/T/test-bb5ff8.o -force_load /Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/arc/libarclite_macosx.a -syslibroot /Applications/Xcode6-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk -lSystem -arch x86_64 -L /Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx -rpath /Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx -macosx_version_min 10.10.0 -no_objc_category_merging -o test

需要注意的是，Swift库是通过@rpath从/Applications/Xcode6-Beta/.../swift/macosx加载的，因此，除非在另一个系统上安装了相同版本的Xcode并安装在相同的位置，否则二进制文件将无法运行。除非你想要进行大量复制/install_name_tool调用来解决这个问题...

$ otool -l test |fgrep path
         name @rpath/libswiftAppKit.dylib (offset 24)
         name @rpath/libswiftCoreGraphics.dylib (offset 24)
         name @rpath/libswiftDarwin.dylib (offset 24)
         name @rpath/libswiftDispatch.dylib (offset 24)
         name @rpath/libswiftFoundation.dylib (offset 24)
         name @rpath/libswiftObjectiveC.dylib (offset 24)
         name @rpath/libswift_stdlib_core.dylib (offset 24)
         path /Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx (offset 12)

- trojanfoe