65 lines
1.6 KiB
Ruby
65 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module MarkupHelper
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extend self
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MARKDOWN_EXTENSIONS = %w[mdown mkd mkdn md markdown].freeze
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ASCIIDOC_EXTENSIONS = %w[adoc ad asciidoc].freeze
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OTHER_EXTENSIONS = %w[textile rdoc org creole wiki mediawiki rst].freeze
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EXTENSIONS = MARKDOWN_EXTENSIONS + ASCIIDOC_EXTENSIONS + OTHER_EXTENSIONS
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PLAIN_FILENAMES = %w[readme index].freeze
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# Public: Determines if a given filename is compatible with GitHub::Markup.
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#
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# filename - Filename string to check
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#
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# Returns boolean
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def markup?(filename)
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EXTENSIONS.include?(extension(filename))
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end
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# Public: Determines if a given filename is compatible with
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# GitLab-flavored Markdown.
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#
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# filename - Filename string to check
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#
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# Returns boolean
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def gitlab_markdown?(filename)
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MARKDOWN_EXTENSIONS.include?(extension(filename))
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end
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# Public: Determines if the given filename has AsciiDoc extension.
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#
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# filename - Filename string to check
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#
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# Returns boolean
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def asciidoc?(filename)
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ASCIIDOC_EXTENSIONS.include?(extension(filename))
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end
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# Public: Determines if the given filename is plain text.
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#
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# filename - Filename string to check
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#
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# Returns boolean
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def plain?(filename)
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extension(filename) == 'txt' || plain_filename?(filename)
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end
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def previewable?(filename)
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markup?(filename)
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end
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private
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def extension(filename)
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File.extname(filename).downcase.delete('.')
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end
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def plain_filename?(filename)
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PLAIN_FILENAMES.include?(filename.downcase)
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end
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end
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end
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