基于魔数快速检查 MIME 类型。Swime 检测 Data 的 MIME 类型，从 sindresorhus/file-type 移植。
此项目不再积极开发，如果您有兴趣，请前往 维护者工单。
import PackageDescription
let package = Package(
name: "MyApp",
dependencies: [
.Package(url: "https://github.com/sendyhalim/Swime", majorVersion: 3)
]
)
检查 mime 类型
import Swime
let path = "/path/to/some-file.jpg"
let url = URL(fileURLWithPath: path, isDirectory: false)
let data = try! Data(contentsOf: url)
let mimeType = Swime.mimeType(data: data)
mimeType?.type == .jpg // true
mimeType! // MimeType(mime: "image/jpeg", ext: "jpg", type: .jpg)
switch mimeType?.type {
case .jpg?:
....
case .png?:
....
case .wmv?:
....
case ...
}
传递字节给它
import Swime
let bytes: [UInt8] = [255, 216, 255]
let mimeType = Swime.mimeType(bytes: bytes)
mimeType! // MimeType(mime: "image/jpeg", ext: "jpg", type: .jpg)
以下是可用的 MimeTypeExtension 列表。
public enum MimeTypeExtension {
case amr
case ar
case avi
case bmp
case bz2
case cab
case cr2
case crx
case deb
case dmg
case eot
case epub
case exe
case flac
case flif
case flv
case gif
case gz
case ico
case jpg
case jxr
case lz
case m4a
case m4v
case mid
case mkv
case mov
case mp3
case mp4
case mpg
case msi
case mxf
case nes
case ogg
case opus
case otf
case pdf
case png
case ps
case psd
case rar
case rpm
case rtf
case sevenZ // 7z, Swift does not let us define enum that starts with a digit
case sqlite
case swf
case tar
case tif
case ttf
case wav
case webm
case webp
case wmv
case woff
case woff2
case xpi
case xz
case z
case zip
case heic
}
make test