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# frozen_string_literal: true
require 'tmpdir'
class LicenseeCLI < Thor
desc 'diff [PATH]', 'Compare the given license text to a known license'
option :license, type: :string, desc: 'The SPDX ID or key of the license to compare'
def diff(_path = nil)
say "Comparing to #{expected_license.name}:"
rows = []
left = expected_license.content_normalized(wrap: 80)
right = license_to_diff.content_normalized(wrap: 80)
similarity = expected_license.similarity(license_to_diff)
similarity = Licensee::ContentHelper.format_percent(similarity)
rows << ['Input Length:', license_to_diff.length]
rows << ['License length:', expected_license.length]
rows << ['Similarity:', similarity]
print_table rows
if left == right
say 'Exact match!', :green
exit
end
Dir.mktmpdir do |dir|
path = File.expand_path 'LICENSE', dir
Dir.chdir(dir) do
`git init`
File.write(path, left)
`git add LICENSE`
`git commit -m 'left'`
File.write(path, right)
say `git diff --word-diff`
end
end
end
private
def license_to_diff
return options[:license_to_diff] if options[:license_to_diff]
return project.license_file if remote? || ($stdin.tty? && project.license_file)
@license_to_diff ||= Licensee::ProjectFiles::LicenseFile.new($stdin.read, 'LICENSE')
end
def expected_license
@expected_license ||= Licensee::License.find options[:license] if options[:license]
return @expected_license if @expected_license
if options[:license]
error "#{options[:license]} is not a valid license"
else
error 'Usage: provide a license to diff against with --license (spdx name)'
end
error "Valid licenses: #{Licensee::License.all(hidden: true).map(&:key).join(', ')}"
exit 1
end
end
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