Bindings to libmagic(2) for Crystal.
Add this to your application's shard.yml:
dependencies:
magic:
github: dscottboggs/magic.crrequire "magic"
require "http" # for the HTTP example
TestImageURL = "https://upload.wikimedia.org/wikipedia/commons/d/db/Patern_test.jpg"
# get a description of the contents of the file at a path.
Magic.filetype.of "/path/to/a/video.mkv" # => "Matroska data"
# open your bashrc and check its mime type
File.open "~/.bashrc" do |bashrc|
Magic.mime_type.of bashrc # => "text/plain"
end
# pull TestImageURL from the web and find out what the valid extensions are for
# the bytes received.
HTTP::Client.get TestImageURL do |result|
Magic.filetype.extensions result.body_io # => Set{"jpeg", "jpg", "jpe", "jfif"}
end
# change a setting and check a filetype
dir = Dir.open "/dev/disk/by-uuid"
dir.each_child do |symlink|
Magic.filetype.of symlink # => "symlink to /dev/sdXX"
end
dir.each_child do |symlink|
Magic.filetype.follow_symlinks.for symlink # => "block special..."
endThere is also a much more flexible and complicated API for more advanced usage.
For more information and some examples, see Magic::TypeChecker and
spec/magic.cr_spec.cr.
Create an issue if you think anything needs revision!
- Fork it (https://github.com/dscottboggs/magic.cr/fork)
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request
- dscottboggs D. Scott Boggs - creator, maintainer