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setup babel for legacy build as input transform plugin

This commit is contained in:
Bruno Windels 2021-11-09 14:52:03 +01:00
parent ffef4936f9
commit da7f66a531
3 changed files with 97 additions and 95 deletions
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1
package.json
View File

@ -31,6 +31,7 @@
"@babel/standalone": "^7.15.8",
"@rollup/plugin-babel": "^5.1.0",
"@rollup/plugin-multi-entry": "^4.0.0",
"@rollup/pluginutils": "^4.1.1",
"@typescript-eslint/eslint-plugin": "^4.29.2",
"@typescript-eslint/parser": "^4.29.2",
"@vitejs/plugin-legacy": "^1.6.1",

134
scripts/build-plugins/legacy-build.js
View File

@ -1,7 +1,10 @@
const { build } = require("vite");
const path = require("path");
let babel; // big import, only do so when used below
const {build} = require("vite");
const {babel} = require('@rollup/plugin-babel');
const {createFilter} = require("@rollup/pluginutils");
const VIRTUAL_ENTRY = "hydrogen:legacy-entry";
const NODE_MODULES_NEEDING_TRANSPILATION = ["es6-promise"];
module.exports = function legacyBuild(entryModuleId, entryImportReplacements, chunkName, extraImports) {
let parentRoot;
@ -26,7 +29,7 @@ module.exports = function legacyBuild(entryModuleId, entryImportReplacements, ch
for (const [importSource, newImportSource] of Object.entries(entryImportReplacements)) {
code = replaceImport(this, code, importSource, newImportSource);
}
code = addExtraImports(code, extraImports);
code = prependExtraImports(code, extraImports);
const bundleCode = await buildLegacyChunk(parentRoot, chunkName, code);
legacyBundleRef = this.emitFile({
type: "asset",
@ -55,7 +58,10 @@ module.exports = function legacyBuild(entryModuleId, entryImportReplacements, ch
}
}
/** we replace the imports ourselves instead of relying on rollup-alias or similar, because
* we only want to replace imports in the entry module, not anywhere in the import tree.
* This allows to create sub classes for the legacy build that can still import
* the non-legacy class as a base class, like LegacyPlatform does with Platform.*/
function replaceImport(pluginCtx, code, importSource, newImportSource) {
const ast = pluginCtx.parse(code);
for (const node of ast.body) {
@ -70,31 +76,66 @@ function replaceImport(pluginCtx, code, importSource, newImportSource) {
throw new Error(`Could not find import ${JSON.stringify(importSource)} to replace`);
}
function addExtraImports(code, extraImports) {
function prependExtraImports(code, extraImports) {
return extraImports.map(i => `import ${JSON.stringify(i)};`).join("\n") + code;
}
async function buildLegacyChunk(root, chunkName, code) {
// // compile down to whatever IE 11 needs
// const babelPlugin = babel.getBabelOutputPlugin({
// // babelHelpers: 'bundled',
// exclude: 'node_modules/**',
// presets: [
// [
// "@babel/preset-env",
// {
// useBuiltIns: "entry",
// corejs: "3.4",
// targets: "IE 11",
// // we provide our own promise polyfill (es6-promise)
// // with support for synchronous flushing of
// // the queue for idb where needed
// exclude: ["es.promise", "es.promise.all-settled", "es.promise.finally"]
// }
// ]
// ]
// });
// babelPlugin.enforce = "post";
const projectRootDir = path.resolve(path.join(root, "../../.."));
const nodeModulesDir = path.join(projectRootDir, "node_modules");
const defaultFilter = createFilter([], [], {resolve: projectRootDir});
const transpiledModuleDirs = NODE_MODULES_NEEDING_TRANSPILATION.map(m => {
return path.join(nodeModulesDir, m);
});
const filterModule = id => {
if (!defaultFilter(id)) {
return false;
}
if (transpiledModuleDirs.some(d => id.startsWith(d))) {
return true;
}
if (id.startsWith(nodeModulesDir)) {
return false;
}
return true;
};
// compile down to whatever IE 11 needs
const babelPlugin = babel({
babelrc: false,
filter: filterModule,
//exclude: 'node_modules/**',
babelHelpers: 'bundled',
presets: [
[
"@babel/preset-env",
{
useBuiltIns: "entry",
corejs: "3.4",
targets: "IE 11",
// we provide our own promise polyfill (es6-promise)
// with support for synchronous flushing of
// the queue for idb where needed
exclude: ["es.promise", "es.promise.all-settled", "es.promise.finally"]
}
]
]
});
const resolveEntryPlugin = {
name: "hydrogen:resolve-legacy-entry",
resolveId(id, importer) {
if (id === VIRTUAL_ENTRY) {
return id;
} else if (importer === VIRTUAL_ENTRY && id.startsWith("./")) {
return this.resolve(path.join(root, id));
}
},
load(id) {
if (id === VIRTUAL_ENTRY) {
return code;
}
},
};
const bundle = await build({
root,
configFile: false,
@ -116,48 +157,11 @@ async function buildLegacyChunk(root, chunkName, code) {
},
},
plugins: [
{
name: "hydrogen:resolve-legacy-entry",
resolveId(id, importer) {
if (id === VIRTUAL_ENTRY) {
return id;
} else if (importer === VIRTUAL_ENTRY && id.startsWith("./")) {
return this.resolve(path.join(root, id));
}
},
load(id) {
if (id === VIRTUAL_ENTRY) {
return code;
}
},
}
resolveEntryPlugin,
babelPlugin
]
});
const assets = Array.isArray(bundle.output) ? bundle.output : [bundle.output];
const mainChunk = assets.find(a => a.name === chunkName);
if (!babel) {
babel = require('@babel/standalone');
}
const {code: babelCode} = babel.transform(mainChunk.code, {
babelrc: false,
configFile: false,
presets: [
[
"env",
{
useBuiltIns: "usage",
modules: false,
corejs: "3.4",
targets: "IE 11",
// we provide our own promise polyfill (es6-promise)
// with support for synchronous flushing of
// the queue for idb where needed
exclude: ["es.promise", "es.promise.all-settled", "es.promise.finally"]
}
]
]
});
console.log("code", babelCode.length);
return babelCode;
return mainChunk.code;
}

57
yarn.lock
View File

@ -226,11 +226,11 @@
"@babel/types" "^7.11.0"
"@babel/helper-module-imports@^7.10.4":
version "7.10.4"
resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.10.4.tgz#4c5c54be04bd31670a7382797d75b9fa2e5b5620"
integrity sha512-nEQJHqYavI217oD9+s5MUBzk6x1IlvoS9WTPfgG43CbMEeStE0v+r+TucWdx8KFGowPGvyOkDT9+7DHedIDnVw==
version "7.16.0"
resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.16.0.tgz#90538e60b672ecf1b448f5f4f5433d37e79a3ec3"
integrity sha512-kkH7sWzKPq0xt3H1n+ghb4xEMP8k0U7XV3kkB+ZGy69kDk2ySFW1qPi06sjKzFY3t1j6XbJSqr4mF9L7CYVyhg==
dependencies:
"@babel/types" "^7.10.4"
"@babel/types" "^7.16.0"
"@babel/helper-module-imports@^7.12.13", "@babel/helper-module-imports@^7.15.4":
version "7.15.4"
@ -326,21 +326,16 @@
dependencies:
"@babel/types" "^7.15.4"
"@babel/helper-validator-identifier@^7.10.4":
version "7.10.4"
resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz#a78c7a7251e01f616512d31b10adcf52ada5e0d2"
integrity sha512-3U9y+43hz7ZM+rzG24Qe2mufW5KhvFg/NhnNph+i9mgCtdTCtMJuI1TMkrIUiK7Ix4PYlRF9I5dhqaLYA/ADXw==
"@babel/helper-validator-identifier@^7.10.4", "@babel/helper-validator-identifier@^7.14.9", "@babel/helper-validator-identifier@^7.15.7":
version "7.15.7"
resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.15.7.tgz#220df993bfe904a4a6b02ab4f3385a5ebf6e2389"
integrity sha512-K4JvCtQqad9OY2+yTU8w+E82ywk/fe+ELNlt1G8z3bVGlZfn/hOcQQsUhGhW/N+tb3fxK800wLtKOE/aM0m72w==
"@babel/helper-validator-identifier@^7.14.5":
version "7.14.9"
resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.14.9.tgz#6654d171b2024f6d8ee151bf2509699919131d48"
integrity sha512-pQYxPY0UP6IHISRitNe8bsijHex4TWZXi2HwKVsjPiltzlhse2znVcm9Ace510VT1kxIHjGJCZZQBX2gJDbo0g==
"@babel/helper-validator-identifier@^7.14.9":
version "7.15.7"
resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.15.7.tgz#220df993bfe904a4a6b02ab4f3385a5ebf6e2389"
integrity sha512-K4JvCtQqad9OY2+yTU8w+E82ywk/fe+ELNlt1G8z3bVGlZfn/hOcQQsUhGhW/N+tb3fxK800wLtKOE/aM0m72w==
"@babel/helper-validator-option@^7.14.5":
version "7.14.5"
resolved "https://registry.yarnpkg.com/@babel/helper-validator-option/-/helper-validator-option-7.14.5.tgz#6e72a1fff18d5dfcb878e1e62f1a021c4b72d5a3"
@ -992,13 +987,12 @@
debug "^4.1.0"
globals "^11.1.0"
"@babel/types@^7.10.4":
version "7.11.5"
resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.11.5.tgz#d9de577d01252d77c6800cee039ee64faf75662d"
integrity sha512-bvM7Qz6eKnJVFIn+1LPtjlBFPVN5jNDc1XmN15vWe7Q3DPBufWWsLiIvUu7xW87uTG6QoggpIDnUgLQvPheU+Q==
"@babel/types@^7.10.4", "@babel/types@^7.16.0":
version "7.16.0"
resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.16.0.tgz#db3b313804f96aadd0b776c4823e127ad67289ba"
integrity sha512-PJgg/k3SdLsGb3hhisFvtLOw5ts113klrpLuIPtCJIU+BB24fqq6lf8RWqKJEjzqXR9AEH1rIb5XTqwBHB+kQg==
dependencies:
"@babel/helper-validator-identifier" "^7.10.4"
lodash "^4.17.19"
"@babel/helper-validator-identifier" "^7.15.7"
to-fast-properties "^2.0.0"
"@babel/types@^7.10.5", "@babel/types@^7.11.0", "@babel/types@^7.4.4":
@ -1195,9 +1189,9 @@
read-package-json-fast "^2.0.1"
"@rollup/plugin-babel@^5.1.0":
version "5.2.1"
resolved "https://registry.yarnpkg.com/@rollup/plugin-babel/-/plugin-babel-5.2.1.tgz#20fc8f8864dc0eaa1c5578408459606808f72924"
integrity sha512-Jd7oqFR2dzZJ3NWANDyBjwTtX/lYbZpVcmkHrfQcpvawHs9E4c0nYk5U2mfZ6I/DZcIvy506KZJi54XK/jxH7A==
version "5.3.0"
resolved "https://registry.yarnpkg.com/@rollup/plugin-babel/-/plugin-babel-5.3.0.tgz#9cb1c5146ddd6a4968ad96f209c50c62f92f9879"
integrity sha512-9uIC8HZOnVLrLHxayq/PTzw+uS25E14KPUBh5ktF+18Mjo5yK0ToMMx6epY0uEgkjwJw0aBW4x2horYXh8juWw==
dependencies:
"@babel/helper-module-imports" "^7.10.4"
"@rollup/pluginutils" "^3.1.0"
@ -1298,6 +1292,14 @@
estree-walker "^1.0.1"
picomatch "^2.2.2"
"@rollup/pluginutils@^4.1.1":
version "4.1.1"
resolved "https://registry.yarnpkg.com/@rollup/pluginutils/-/pluginutils-4.1.1.tgz#1d4da86dd4eded15656a57d933fda2b9a08d47ec"
integrity sha512-clDjivHqWGXi7u+0d2r2sBi4Ie6VLEAzWMIkvJLnDmxoOhBYOTfzGbOQBA32THHm11/LiJbd01tJUpJsbshSWQ==
dependencies:
estree-walker "^2.0.1"
picomatch "^2.2.2"
"@sindresorhus/is@^4.0.0":
version "4.0.1"
resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-4.0.1.tgz#d26729db850fa327b7cacc5522252194404226f5"
@ -3737,12 +3739,7 @@ lodash@^4.15.0:
resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
lodash@^4.17.19:
version "4.17.20"
resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
lodash@^4.7.0:
lodash@^4.17.19, lodash@^4.7.0:
version "4.17.21"
resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
@ -4437,12 +4434,12 @@ picocolors@^0.2.1:
resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-0.2.1.tgz#570670f793646851d1ba135996962abad587859f"
integrity sha512-cMlDqaLEqfSaW8Z7N5Jw+lyIW869EzT73/F5lhtY9cLGoVxSXznfgfXMO0Z5K0o0Q2TkTXq+0KFsdnSe3jDViA==
picomatch@^2.0.4, picomatch@^2.2.3, picomatch@^2.3.0:
picomatch@^2.0.4, picomatch@^2.2.2, picomatch@^2.2.3, picomatch@^2.3.0:
version "2.3.0"
resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.3.0.tgz#f1f061de8f6a4bf022892e2d128234fb98302972"
integrity sha512-lY1Q/PiJGC2zOv/z391WOTD+Z02bCgsFfvxoXXf6h7kv9o+WmsmzYqrAwY63sNgOxE4xEdq0WyUnXfKeBrSvYw==
picomatch@^2.2.1, picomatch@^2.2.2:
picomatch@^2.2.1:
version "2.2.2"
resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.2.2.tgz#21f333e9b6b8eaff02468f5146ea406d345f4dad"
integrity sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==