check_license_headers.rb

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# the Apache License, Version 2.0 (the "License"); you may
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#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# specific language governing permissions and limitations
# under the License.

LICENSE = File.read('./.github/license-header.txt')
files = `git ls-files | grep -E '\.rb|Rakefile|\.rake|\.erb|Gemfile|gemspec'`.split("\n")
errors = []

files.each do |file|
  unless File.read(file).include?(LICENSE)
    errors << file
    puts "#{file} doesn't contain the correct license header"
  end
end

if errors.empty?
  puts 'All checked files have the correct license header'
else
  exit 1
end