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# frozen_string_literal: true
require 'json'
module Sprockets
module Npm
# Internal: Override resolve_alternates to install package.json behavior.
#
# load_path - String environment path
# logical_path - String path relative to base
#
# Returns candidate filenames.
def resolve_alternates(load_path, logical_path)
candidates, deps = super
dirname = File.join(load_path, logical_path)
if directory?(dirname)
filename = File.join(dirname, 'package.json')
if self.file?(filename)
deps << build_file_digest_uri(filename)
read_package_directives(dirname, filename) do |path|
if file?(path)
candidates << path
end
end
end
end
return candidates, deps
end
# Internal: Read package.json's main and style directives.
#
# dirname - String path to component directory.
# filename - String path to package.json.
#
# Returns nothing.
def read_package_directives(dirname, filename)
package = JSON.parse(File.read(filename), create_additions: false)
case package['main']
when String
yield File.expand_path(package['main'], dirname)
when nil
yield File.expand_path('index.js', dirname)
end
yield File.expand_path(package['style'], dirname) if package['style']
end
end
end
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