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# frozen_string_literal: true
require_relative 'constants'
require_relative 'shared'
# Purpose:
# - Reads a set of markdown examples from a hash which has been serialized to disk
# - Converts each example to static HTML using the `markdown` helper
# - Writes the HTML for each example to a hash which is serialized to disk
#
# It should be invoked via `rails runner` from the Rails root directory.
# It is intended to be invoked from the `update_example_snapshots.rb` script class.
module Glfm
class RenderStaticHtml
include Constants
include Shared
def process
markdown_yml_path = ARGV[0]
markdown_hash = YAML.load_file(markdown_yml_path)
# NOTE: We COULD parallelize this loop like the Javascript WYSIWYG example generation does,
# but it wouldn't save much time. Most of the time is spent loading the Rails environment
# via `rails runner`. In initial testing, this loop only took ~7 seconds while the entire
# script took ~20 seconds. Unfortunately, there's no easy way to execute
# `ApplicationController.helpers.markdown` without using `rails runner`
static_html_hash = markdown_hash.transform_values do |markdown|
ApplicationController.helpers.markdown(markdown)
end
static_html_tempfile_path = Dir::Tmpname.create(STATIC_HTML_TEMPFILE_BASENAME) do |path|
tmpfile = File.open(path, 'w')
YAML.dump(static_html_hash, tmpfile)
tmpfile.close
end
# Write the path to the output file to stdout
print static_html_tempfile_path
end
end
end
# current_user must be in global scope for `markdown` helper to work. Currently it's not supported
# to pass it in the context.
def current_user
# TODO: This will likely need to be a more realistic user object for some of the GLFM examples
User.new
end
Glfm::RenderStaticHtml.new.process
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