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41 lines
1.2 KiB
Ruby
41 lines
1.2 KiB
Ruby
# Encapsulates a string representing a filename to provide convenience access to parts of it and a sanitized version.
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# This is what's returned by `ActiveStorage::Blob#filename`. A Filename instance is comparable so it can be used for sorting.
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class ActiveStorage::Filename
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include Comparable
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def initialize(filename)
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@filename = filename
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end
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# Filename.new("racecar.jpg").extname # => ".jpg"
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def extname
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File.extname(@filename)
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end
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# Filename.new("racecar.jpg").extension # => "jpg"
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def extension
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extname.from(1)
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end
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# Filename.new("racecar.jpg").base # => "racecar"
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def base
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File.basename(@filename, extname)
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end
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# Filename.new("foo:bar.jpg").sanitized # => "foo-bar.jpg"
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# Filename.new("foo/bar.jpg").sanitized # => "foo-bar.jpg"
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#
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# ...and any other character unsafe for URLs or storage is converted or stripped.
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def sanitized
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@filename.encode(Encoding::UTF_8, invalid: :replace, undef: :replace, replace: "<EFBFBD>").strip.tr("\u{202E}%$|:;/\t\r\n\\", "-")
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end
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# Returns the sanitized version of the filename.
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def to_s
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sanitized.to_s
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end
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def <=>(other)
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to_s.downcase <=> other.to_s.downcase
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end
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end
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