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Contents
MimeMagic is a library to detect the mime type of a file by extension or by content. It uses the mime database
provided by freedesktop.org (see http://freedesktop.org/wiki/Software/shared-mime-info/).
[](http://rubygems.org/gems/mimemagic)
[](http://rubygems.org/gems/mimemagic)
[](http://travis-ci.org/minad/mimemagic) [](https://codeclimate.com/github/minad/mimemagic)
[](https://flattr.com/submit/auto?user_id=min4d&url=https://github.com/minad/mimemagic&title=MimeMagic&language=&tags=github&category=software)
Usage
=====
```ruby
require 'mimemagic'
MimeMagic.by_extension('html').text?
MimeMagic.by_extension('.html').child_of? 'text/plain'
MimeMagic.by_path('filename.txt')
MimeMagic.by_magic(File.open('test.html'))
# etc...
```
Extra magic overlay
=====
Microsoft Office 2007+ formats (xlsx, docx, and pptx) are not supported by the mime database at freedesktop.org. These files are all zipped collections of xml files and will be detected as "application/zip". Mimemagic comes with extra magic you can overlay on top of the defaults to correctly detect these file types. Enable it like this:
```ruby
require 'mimemagic'
require 'mimemagic/overlay'
MimeMagic.by_magic(File.open('test.xlsx'))
```
You can add your own magic with `MimeMagic.add`. See `lib/mimemagic/overlay.rb`.
API
===
http://www.rubydoc.info/github/minad/mimemagic
Tests
=====
```
bundle install
rake test
```
Authors
=======
Daniel Mendler
Version data entries
5 entries across 5 versions & 4 rubygems