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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| "use strict"; | ||
|
|
||
| /* | ||
| * A single babel RC for all transpiling, including client and server code. | ||
| * When transpiling for node.js, env XARC_BABEL_TARGET should be set to "node" | ||
| * and this file will set preset-env targets accordingly. | ||
| */ | ||
| const ck = require("chalker"); | ||
| const requireAt = require("require-at"); | ||
| const archetype = require("@xarc/app/config/archetype"); | ||
| const optionalRequire = require("optional-require")(require); | ||
| const optFlow = optionalRequire("electrode-archetype-opt-flow"); | ||
|
|
||
| const { | ||
| enableTypeScript, | ||
| flowRequireDirective, | ||
| enableFlow, | ||
| proposalDecorators, | ||
| legacyDecorators, | ||
| transformClassProps, | ||
| looseClassProps, | ||
| enableDynamicImport | ||
| } = archetype.babel; | ||
|
|
||
| const addFlowPlugin = Boolean(enableFlow && optFlow); | ||
| // | ||
| // Resolve full path of a plugin that's the dependency of host npm package | ||
| // | ||
| function getPluginFrom(host, pluginName) { | ||
| return requireAt(require.resolve(`${host}/package.json`)).resolve(pluginName); | ||
| } | ||
|
|
||
| const basePlugins = [ | ||
| ...(enableDynamicImport | ||
| ? ["@babel/plugin-syntax-dynamic-import", "@loadable/babel-plugin"] | ||
| : [false]), | ||
| // allow decorators on class and method | ||
| // Note: This must go before @babel/plugin-proposal-class-properties | ||
| (enableTypeScript || proposalDecorators) && [ | ||
| "@babel/plugin-proposal-decorators", | ||
| { legacy: legacyDecorators } | ||
| ], | ||
| // | ||
| // allow class properties. loose option compile to assignment expression instead | ||
| // of Object.defineProperty. | ||
| // Note: This must go before @babel/plugin-transform-classes | ||
| // | ||
| (enableTypeScript || transformClassProps) && [ | ||
| "@babel/plugin-proposal-class-properties", | ||
| { loose: looseClassProps } | ||
| ], | ||
| // | ||
| // i18n has not been used at all and these are very outdated | ||
| // remove them for now until they can be updated | ||
| // | ||
| // [ | ||
| // "babel-plugin-i18n-id-hashing", | ||
| // { | ||
| // varsContainingMessages: ["defaultMessages", "translations"] | ||
| // } | ||
| // ], | ||
| // [ | ||
| // "babel-plugin-react-intl", | ||
| // { | ||
| // messagesDir: "./tmp/messages/", | ||
| // enforceDescriptions: true | ||
| // } | ||
| // ], | ||
| "transform-node-env-inline", | ||
| "babel-plugin-lodash", | ||
| "@babel/plugin-transform-runtime", | ||
| addFlowPlugin && [ | ||
| "@babel/plugin-transform-flow-strip-types", | ||
| { requireDirective: flowRequireDirective } | ||
| ] | ||
| ]; | ||
|
|
||
| const fileId = "xarc-app-dev:babelrc.js"; | ||
|
|
||
| const checkEnv = names => { | ||
| names = names.filter(x => !process.env.hasOwnProperty(x)); | ||
| if (names.length > 0) { | ||
| console.error( | ||
| ck`\n<red>Notice:</> ${fileId}: env ${names.join(", ")} not defined - default to 'false'\n` | ||
| ); | ||
| } | ||
| }; | ||
|
|
||
| checkEnv(["ENABLE_CSS_MODULE", "ENABLE_KARMA_COV"]); | ||
|
|
||
| const { BABEL_ENV, NODE_ENV, XARC_BABEL_TARGET, ENABLE_CSS_MODULE, ENABLE_KARMA_COV } = process.env; | ||
|
|
||
| const enableCssModule = ENABLE_CSS_MODULE === "true"; | ||
| const enableKarmaCov = ENABLE_KARMA_COV === "true"; | ||
| const isProduction = (BABEL_ENV || NODE_ENV) === "production"; | ||
| const isTest = (BABEL_ENV || NODE_ENV) === "test"; | ||
| const isNodeTarget = XARC_BABEL_TARGET === "node"; | ||
|
|
||
| const plugins = basePlugins.concat( | ||
| // test env | ||
| isTest && ["babel-plugin-dynamic-import-node"], | ||
| // production env | ||
| isProduction && [ | ||
| "@babel/plugin-transform-react-constant-elements", | ||
| [ | ||
| "babel-plugin-transform-react-remove-prop-types", | ||
| { | ||
| removeImport: true | ||
| } | ||
| ] | ||
| ], | ||
| // css module support | ||
| enableCssModule && [ | ||
| [ | ||
| "babel-plugin-react-css-modules", | ||
| { | ||
| context: "./src", | ||
| generateScopedName: `${isProduction ? "" : "[name]__[local]___"}[hash:base64:5]`, | ||
| filetypes: { | ||
| ".scss": { | ||
| syntax: "postcss-scss", | ||
| plugins: ["postcss-nested"] | ||
| }, | ||
| ".styl": { | ||
| syntax: "sugarss" | ||
| }, | ||
| ".less": { | ||
| syntax: "postcss-less" | ||
| } | ||
| } | ||
| } | ||
| ] | ||
| ], | ||
| enableKarmaCov && [getPluginFrom("electrode-archetype-opt-karma", "babel-plugin-istanbul")] | ||
| ); | ||
|
|
||
| const target = isNodeTarget ? "node" : archetype.babel.target; | ||
|
|
||
| const targets = archetype.babel.envTargets[target]; | ||
| console.log(ck`<orange>Babel preset-env compile targets: </><cyan>${JSON.stringify(targets)}</>`); | ||
|
|
||
| const useBuiltIns = | ||
| !isNodeTarget && archetype.babel.hasMultiTargets | ||
| ? { useBuiltIns: "entry", corejs: require("core-js/package.json").version.split(".")[0] } | ||
| : {}; | ||
|
|
||
| const presets = [ | ||
| // | ||
| // webpack 4 can handle ES modules now so turn off babel module transformation | ||
| // in production mode to allow tree shaking. | ||
| // But keep transforming modules to commonjs when not in production mode so tests | ||
| // can continue to stub ES modules. | ||
| // | ||
| [ | ||
| "@babel/preset-env", | ||
| { | ||
| modules: isNodeTarget || isProduction || enableDynamicImport ? "auto" : "commonjs", | ||
| loose: true, | ||
| targets, | ||
| ...useBuiltIns | ||
| } | ||
| ], | ||
| enableTypeScript && "@babel/preset-typescript", | ||
| "@babel/preset-react" | ||
| ]; | ||
|
|
||
| module.exports = { | ||
| presets: presets.filter(x => x), | ||
| plugins: plugins.filter(x => x) | ||
| }; |
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