discourse/spec/lib/ember_cli_spec.rb
David Taylor b59f1ad4ee
DEV: Improve strategy for identifying ember-cli JS chunks (#23382)
Our Ember build compiles assets into multiple chunks. In the past, we used the output from ember-auto-import-chunks-json-generator to give Rails a map of those chunks. However, that addon is specific to ember-auto-import, and is not compatible with Embroider.

Instead, we can switch to parsing the html files which are output by ember-cli. These are guaranteed to have the correct JS files in the correct place. A <discourse-chunked-script> will allow us to easily identify which chunks belong to which entrypoint.

In future, as we update more entrypoints to be compiled by Embroider/Webpack, we can easily introduce new wrappers.

Previously applied in 2c58d45 and reverted in 24d46fd. This version has been updated for subfolder support.
2023-09-04 13:56:34 +01:00

45 lines
1.2 KiB
Ruby

# frozen_string_literal: true
describe EmberCli do
describe ".ember_version" do
it "works" do
expect(EmberCli.ember_version).to match(/\A\d+\.\d+/)
end
end
describe ".parse_chunks_from_html" do
def generate_html
<<~HTML
<html>
<head>
<discourse-chunked-script entrypoint="discourse">
<script src="#{Discourse.base_path}/assets/firstchunk.js"></script>
<script src="#{Discourse.base_path}/assets/secondchunk.js"></script>
</discourse-chunked-script>
</head>
<body>
Hello world
</body>
</html>
HTML
end
it "can parse chunks for a normal site" do
chunks = EmberCli.parse_chunks_from_html generate_html
expect(chunks["discourse"]).to eq(%w[firstchunk secondchunk])
end
it "can parse chunks for a subfolder site" do
set_subfolder "/discuss"
html = generate_html
# sanity check that our fixture is working
expect(html).to include("/discuss/assets/firstchunk.js")
chunks = EmberCli.parse_chunks_from_html html
expect(chunks["discourse"]).to eq(%w[firstchunk secondchunk])
end
end
end