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Merge pull request #32 from easolhq/tc/dartsass
Switch to DartSass
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Original file line number | Diff line number | Diff line change |
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# frozen_string_literal: true | ||
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require "open3" | ||
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module Canvas | ||
# This is a thin wrapper around the dartsass binary as provided by | ||
# dartsass-rails. | ||
# | ||
# It is compatible with SassC::Engine as much as we were using it, but 100% | ||
# compatability is not a goal. | ||
class DartSass | ||
Error = Class.new(StandardError) | ||
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def initialize(css, config) | ||
@css = css | ||
@config = config | ||
end | ||
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def render | ||
stdout, stderr, status = Open3.capture3(*command, stdin_data: @css) | ||
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if status == 0 | ||
stdout | ||
else | ||
raise Error.new(stderr) | ||
end | ||
end | ||
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private | ||
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def command | ||
[dartsass, "--stdin", style, *load_paths].compact | ||
end | ||
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def dartsass | ||
Gem.bin_path("dartsass-rails", "dartsass").shellescape | ||
end | ||
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def style | ||
(s = @config[:style]) && "--style=#{s.to_s.shellescape}" | ||
end | ||
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def load_paths | ||
Array(@config[:load_paths]).map { "--load-path=#{_1.shellescape}" } | ||
end | ||
end | ||
end |
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