chore: add terser minification

babel · Nov 29, 2019 · 7e4a944 · 7e4a944
1 parent 6550d31
commit 7e4a944
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Showing 3 changed files with 78 additions and 9 deletions.
diff --git a/Gulpfile.js b/Gulpfile.js
@@ -20,6 +20,7 @@ const rollupNodeBuiltins = require("rollup-plugin-node-builtins");
 const rollupNodeGlobals = require("rollup-plugin-node-globals");
 const rollupNodeResolve = require("rollup-plugin-node-resolve");
 const rollupReplace = require("rollup-plugin-replace");
+const { terser: rollupTerser } = require("rollup-plugin-terser");
 
 const defaultSourcesGlob = "./@(codemods|packages|eslint)/*/src/**/*.js";
 
@@ -82,22 +83,37 @@ function buildBabel(exclude, sourcesGlob = defaultSourcesGlob) {
 let babelVersion = require("./packages/babel-core/package.json").version;
 function buildRollup(packages) {
   const sourcemap = process.env.NODE_ENV === "production";
+  const minify = !!process.env.IS_PUBLISH;
   return Promise.all(
     packages.map(
       ({ src, format, dest, name, filename, version = babelVersion }) => {
         const extraPlugins = [];
         let inputExternal = undefined,
           outputGlobals = undefined,
           nodeResolveBrowser = false,
-          babelEnvName = "rollup"
+          babelEnvName = "rollup";
         switch (src) {
           case "packages/babel-standalone":
             nodeResolveBrowser = true;
             babelEnvName = "standalone";
+            if (minify) {
+              extraPlugins.push(
+                rollupTerser({
+                  include: /^.+\.min\.js$/,
+                })
+              );
+            }
             break;
           case "packages/babel-preset-env-standalone":
             nodeResolveBrowser = true;
             babelEnvName = "standalone";
+            if (minify) {
+              extraPlugins.push(
+                rollupTerser({
+                  include: /^.+\.min\.js$/,
+                })
+              );
+            }
             inputExternal = ["@babel/standalone"];
             outputGlobals = {
               "@babel/standalone": "Babel",
@@ -168,13 +184,40 @@ function buildRollup(packages) {
             ],
           })
           .then(bundle => {
-            return bundle.write({
-              file: path.resolve(src, dest, filename || "index.js"),
-              format,
-              name,
-              globals: outputGlobals,
-              sourcemap: sourcemap,
-            });
+            const outputFile = path.resolve(src, dest, filename || "index.js");
+            return bundle
+              .write({
+                file: outputFile,
+                format,
+                name,
+                globals: outputGlobals,
+                sourcemap: sourcemap,
+              })
+              .then(() => {
+                if (!process.env.IS_PUBLISH) {
+                  fancyLog(
+                    chalk.yellow(
+                      `Skipped minification of '${chalk.cyan(
+                        path.relative(path.join(__dirname, ".."), outputFile)
+                      )}' because not publishing`
+                    )
+                  );
+                  return undefined;
+                }
+                fancyLog(
+                  `Minifying '${chalk.cyan(
+                    path.relative(path.join(__dirname, ".."), outputFile)
+                  )}'...`
+                );
+
+                return bundle.write({
+                  file: outputFile.replace(/\.js$/, ".min.js"),
+                  format,
+                  name,
+                  globals: outputGlobals,
+                  sourcemap: sourcemap,
+                });
+              });
           });
       }
     )

diff --git a/package.json b/package.json
@@ -73,6 +73,7 @@
     "rollup-plugin-node-globals": "^1.4.0",
     "rollup-plugin-node-resolve": "^5.0.0",
     "rollup-plugin-replace": "^2.2.0",
+    "rollup-plugin-terser": "^5.1.2",
     "test262-stream": "^1.3.0",
     "through2": "^2.0.0",
     "typescript": "^3.6.3",

diff --git a/yarn.lock b/yarn.lock
@@ -9670,6 +9670,17 @@ rollup-plugin-replace@^2.2.0:
     magic-string "^0.25.2"
     rollup-pluginutils "^2.6.0"
 
+rollup-plugin-terser@^5.1.2:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-terser/-/rollup-plugin-terser-5.1.2.tgz#3e41256205cb75f196fc70d4634227d1002c255c"
+  integrity sha512-sWKBCOS+vUkRtHtEiJPAf+WnBqk/C402fBD9AVHxSIXMqjsY7MnYWKYEUqGixtr0c8+1DjzUEPlNgOYQPVrS1g==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    jest-worker "^24.6.0"
+    rollup-pluginutils "^2.8.1"
+    serialize-javascript "^1.7.0"
+    terser "^4.1.0"
+
 rollup-pluginutils@^2.3.1, rollup-pluginutils@^2.5.0:
   version "2.8.2"
   resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.8.2.tgz#72f2af0748b592364dbd3389e600e5a9444a351e"
@@ -9798,6 +9809,11 @@ semver@~5.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
   integrity sha1-myzl094C0XxgEq0yaqa00M9U+U8=
 
+serialize-javascript@^1.7.0:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.9.1.tgz#cfc200aef77b600c47da9bb8149c943e798c2fdb"
+  integrity sha512-0Vb/54WJ6k5v8sSWN09S0ora+Hnr+cX40r9F170nT+mSkaxltoE/7R3OrIdBSUv1OoiobH1QoWQbCnAO+e8J1A==
+
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -9991,7 +10007,7 @@ source-map-resolve@^0.5.0:
     source-map-url "^0.4.0"
     urix "^0.1.0"
 
-source-map-support@^0.5.16, source-map-support@^0.5.6:
+source-map-support@^0.5.16, source-map-support@^0.5.6, source-map-support@~0.5.12:
   version "0.5.16"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.16.tgz#0ae069e7fe3ba7538c64c98515e35339eac5a042"
   integrity sha512-efyLRJDr68D9hBBNIPWFjhpFzURh+KJykQwvMyW5UiZzYwoF6l4YMMDIJJEyFWxWCqfyxLzz6tSfUFR+kXXsVQ==
@@ -10467,6 +10483,15 @@ temp-write@^3.4.0:
     temp-dir "^1.0.0"
     uuid "^3.0.1"
 
+terser@^4.1.0:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-4.4.0.tgz#22c46b4817cf4c9565434bfe6ad47336af259ac3"
+  integrity sha512-oDG16n2WKm27JO8h4y/w3iqBGAOSCtq7k8dRmrn4Wf9NouL0b2WpMHGChFGZq4nFAQy1FsNJrVQHfurXOSTmOA==
+  dependencies:
+    commander "^2.20.0"
+    source-map "~0.6.1"
+    source-map-support "~0.5.12"
+
 test-exclude@^5.2.3:
   version "5.2.3"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-5.2.3.tgz#c3d3e1e311eb7ee405e092dac10aefd09091eac0"