FileType

The file type is detected by checking the magic number of the data.

This is swift port of file-type

Installation

Swift Package Manager

import PackageDescription

let package = Package(
  name: "MyApp",
  dependencies: [
    .package(url: "https://github.com/velocityzen/FileType", from: "1.0.3")
  ]
)

Usage

Inspect mime type

import FileType

let path = "/path/to/some-file.jpg"
let url = URL(fileURLWithPath: path, isDirectory: false)
let data = try! Data(contentsOf: url)
let fileType = FileType.getFor(data: data)

fileType?.type == .jpg // true
fileType! // FileType(type: .jpg, ext: "jpg", mime: "image/jpeg")

.getFor(type: FileTypeExtension) -> [FileType]

returns all file types and mime information

.getFor(data: Data) -> FileType?

returns file type detected by checking the magic number

.getBytesCountFor(type: FileTypeExtension) -> Int

returns bytes count needed to detect file type

.getBytesCountFor(types: [FileTypeExtension]) -> Int

returns max bytes count needed to detect file types

Supported file types

• 3g2 - Multimedia container format defined by the 3GPP2 for 3G CDMA2000 multimedia services
• 3gp - Multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services
• 3mf - 3D Manufacturing Format
• 7z
• aac - Advanced Audio Coding
• ac3 - ATSC A/52 Audio File
• ai - Adobe Illustrator Artwork
• aif
• alias - macOS Alias file
• amr
• ape - Monkey's Audio
• apng - Animated Portable Network Graphics
• ar
• arrow - Columnar format for tables of data
• arw - Sony Alpha Raw image file
• asar - Simple extensive tar-like archive format with indexing
• asf - Advanced Systems Format
• avi
• avif - AV1 Image File Format
• blend
• bmp
• bpg
• bz2
• cab
• cfb
• chm - Microsoft Compiled HTML Help
• cr2 - Canon Raw image file (v2)
• cr3 - Canon Raw image file (v3)
• crx
• cur
• dcm - DICOM Image File
• deb
• dmg
• dng - Adobe Digital Negative image file
• docx
• dsf - Sony DSD Stream File (DSF)
• elf - Unix Executable and Linkable Format
• eot
• eps - Encapsulated PostScript
• epub
• exe
• f4a - Audio-only ISO base media file format used by Adobe Flash Player
• f4b - Audiobook and podcast ISO base media file format used by Adobe Flash Player
• f4p - ISO base media file format protected by Adobe Access DRM used by Adobe Flash Player
• f4v - ISO base media file format used by Adobe Flash Player
• flac
• flif
• flv
• gif
• glb - GL Transmission Format
• gz
• heic
• icns
• ico
• ics - iCalendar
• indd
• it - Audio module format: Impulse Tracker
• jp2 - JPEG 2000
• jpg
• jpm - JPEG 2000
• jpx - JPEG 2000
• jxl - JPEG XL image format
• jxr
• ktx
• lnk - Microsoft Windows file shortcut
• lz
• lzh - LZH archive
• m4a - Audio-only MPEG-4 files
• m4b - Audiobook and podcast MPEG-4 files, which also contain metadata including chapter markers, images, and hyperlinks
• m4p - MPEG-4 files with audio streams encrypted by FairPlay Digital Rights Management as were sold through the iTunes Store
• m4v - MPEG-4 Visual bitstreams
• mid
• mie - Dedicated meta information format which supports storage of binary as well as textual meta information
• mj2 - Motion JPEG 2000
• mkv
• mobi - Mobipocket
• mov
• mp1 - MPEG-1 Audio Layer I
• mp2
• mp3
• mp4
• mpc - Musepack (SV7 & SV8)
• mpg
• mts - MPEG-2 Transport Stream, both raw and Blu-ray Disc Audio-Video (BDAV) versions
• mxf
• nef - Nikon Electronic Format image file
• nes
• odp - OpenDocument for presentations
• ods - OpenDocument for spreadsheets
• odt - OpenDocument for word processing
• oga
• ogg
• ogm
• ogv
• ogx
• opus
• orf - Olympus Raw image file
• otf
• pcap - Libpcap File Format
• pdf
• pgp - Pretty Good Privacy
• png
• pptx
• ps
• psd
• qcp
• raf - Fujifilm RAW image file
• rar
• rpm
• rtf
• rw2 - Panasonic RAW image file
• s3m - Audio module format: ScreamTracker 3
• shp - Geospatial vector data format
• skp - SketchUp
• spx
• sqlite
• stl - Standard Tesselated Geometry File Format (ASCII only)
• swf
• tar
• tif
• ttf
• vcf - vCard
• voc - Creative Voice File
• wasm
• wav
• webm
• webp
• woff2
• woff
• wv - WavPack
• xcf - eXperimental Computing Facility
• xlsx
• xm - Audio module format: FastTracker 2
• xml
• xpi
• xz
• Z
• zip
• zst - Archive file

Pull requests are welcome for additional commonly used file types.

Testing

swift test