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e3054ef5901. Remove 'federated exports' system, which was named entrypoint exports
for every module inside the plugin. Replace it with a single import of
the target plugin's 'compatModules', and then update call sites to do a
'just in time' lookup of the module and export. This is implemented in a
new `babel-resolve-plugin-imports` plugin
2. Update theme & plugin build systems to produce a list of external
plugins which are imported. For plugins, it's stored in the manifest.
For themes, it's stored in a new column of the javascript_caches table.
3. Refactor theme extra_js loading to use a more structured data model,
and move the HTML generation to the erb template
4. Update core importmap to identify any missing plugin dependencies and
add a fake placeholder module for them. This allows optional imports to
exist without causing a boot error. The imported values will resolve to
'null'.
5. Update core plugins to remove use of `optionalRequire`, and replace
it with regular imports, and a `with { discourseImport: "optional" }`
suffix. This is functionally equivalent to optionalRequire, but without
leaning on the legacy `loader.js` system of core
6. Add support for `with { discourseImport: "optional" }` for
plugins/themes importing core modules. This is useful when a
theme/plugin needs to target multiple versions of Discourse core.
Co-authored-by: Jarek Radosz <jarek@cvx.dev>
83 lines
1.8 KiB
Ruby
Vendored
83 lines
1.8 KiB
Ruby
Vendored
# frozen_string_literal: true
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class ThemeJavascriptCompiler
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class CompileError < StandardError
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end
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@@terser_disabled = false
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def self.disable_terser!
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raise "Tests only" if !Rails.env.test?
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@@terser_disabled = true
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end
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def self.enable_terser!
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raise "Tests only" if !Rails.env.test?
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@@terser_disabled = false
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end
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def initialize(theme_id, theme_name, minify: true)
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@theme_id = theme_id
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@input_tree = {}
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@theme_name = theme_name
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@minify = minify
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end
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def compile!
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if !@compiled
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@compiled = true
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@input_tree =
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@input_tree.to_h do |k, v|
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if k.end_with?(".js.es6")
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[k.sub(/\.js\.es6$/, ".js"), AssetProcessor.append_es6_deprecation(v, k)]
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else
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[k, v]
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end
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end
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@input_tree.freeze
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output =
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AssetProcessor.new.rollup(
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@input_tree,
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{
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themeId: @theme_id,
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minify: @minify && !@@terser_disabled,
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entrypoints: {
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main: {
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modules: @input_tree.keys,
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},
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},
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},
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)
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main = output.values.find { |chunk| chunk["name"] == "main" }
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@content = main["code"]
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@source_map = main["map"]
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@external_plugin_imports = main["externalPluginImports"] || []
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end
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[@content, @source_map]
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rescue AssetProcessor::TranspileError => e
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message = "[THEME #{@theme_id} '#{@theme_name}'] Compile error: #{e.message}"
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@content = "throw new Error(#{message.to_json});\n"
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@external_plugin_imports = []
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[@content, @source_map]
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end
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def content
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compile!
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@content
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end
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def source_map
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compile!
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@source_map
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end
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def external_plugin_imports
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compile!
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@external_plugin_imports
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end
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def append_tree(tree)
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@input_tree.merge!(tree)
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end
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end
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