54 lines
1.2 KiB
Ruby
54 lines
1.2 KiB
Ruby
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# frozen_string_literal: true
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##
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# Compiles a JavaScript / TypeScript asset with webpack.
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class Nanoc::Filter::Webpack < Nanoc::Filter
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EXTNAMES = [".jsx", ".js", ".tsx", ".ts"]
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include FileUtils
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identifier :webpack
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type :text
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always_outdated
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def run(content, options = {})
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file, dir = temp!(content, extname(item.identifier.to_s))
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basename = basename_for(item.identifier.to_s)
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run_webpack(options.dup.delete(:exe) || "webpack", file.path, basename)
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File.read(File.join(dir, basename))
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.tap {
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file.tap(&:unlink).close
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rm_rf(dir)
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}
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end
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private
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def basename_for(path)
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File.basename path.sub(/#{Regexp.escape(extname(path))}\z/) {
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EXTNAMES.include?(extname(path)) ? ".js" : nil
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}
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end
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def extname(path)
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File.extname(path)
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end
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def run_webpack(webpack_bin, path, basename)
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system "node",
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webpack_bin,
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"--entry", path,
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"--output-path", File.dirname(path),
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"--output-filename", basename
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exit! unless $?.success?
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end
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def temp!(content, extname)
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dir = File.join(Dir.getwd, "tmp", "webpack")
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rm_rf(dir)
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mkdir_p(dir)
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file = Tempfile.new(["webpack", extname], dir)
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file.write(content)
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[file.tap(&:flush), dir]
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end
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end
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