refactor!: drop support for node.js versions <12.16.x

Summary: See ["Which node.js version are you using with the fbt Babel transforms? #217"](#217)

Reviewed By: jrwats

Differential Revision: D27899462

fbshipit-source-id: c09604e96856c9c3a592baa69b1359ee1988a426

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [ '10.19', '12.16' ]
+        node: [ '12.16', '16.0' ]
         test: [
           'flow:check',
           'babel-plugin-fbt:test',
@@ -26,7 +26,7 @@ jobs:
       - uses: actions/checkout@v2
       - name: Setup node
         uses: actions/setup-node@v2-beta
-        with: 
+        with:
           node-version: ${{ matrix.node }}
       - run: yarn install
       - run: yarn run ${{matrix.test}}

CHANGELOG.md

@@ -53,6 +53,7 @@ List of changes for each released npm package version.
     Unreleased changes that have landed in master. Click to see more.
   </summary>
 
+  - [chore]! Drop support for node.js `<12.16.x`
   - [feat] Add a new `FbtTranslations.getRegisteredTranslations` function
   - [feat] Add a new `FbtTranslations.mergeTranslations` function
 </details>
@@ -138,6 +139,7 @@ List of changes for each released npm package version.
       Unreleased changes that have landed in master. Click to see more.
     </summary>
 
+    - [chore]! Drop support for node.js `<12.16.x`
     - [feat]! Refactor the string extraction algorithm to properly generate meaningful text/description pairs for fbt callsites that contain JSX presentational elements.
     We're also adding support for a new way to call fbt() using an array of inputs instead of string concatenation.
     See [#35](https://github.com/facebook/fbt/issues/35)

package.json

@@ -120,6 +120,6 @@
     "packages/gulp-strip-docblock-pragmas"
   ],
   "engines": {
-    "node": ">= 10.4.0"
+    "node": ">= 12.16.0"
   }
 }

packages/babel-plugin-fbt/gulpfile.js

@@ -55,7 +55,7 @@ const babelPluginFbt_buildDistJS = () =>
       babel({
         plugins: [
           require('@babel/plugin-proposal-optional-catch-binding'),
-          require('@babel/plugin-proposal-class-properties'),
+          require('@babel/plugin-syntax-class-properties'),
           [require('@babel/plugin-syntax-flow'), {enums: true}],
           require('babel-plugin-transform-flow-enums'),
           require('babel-preset-fbjs/plugins/dev-expression'),

packages/babel-plugin-fbt/package.json

@@ -5,19 +5,22 @@
   "description": "The FBT Babel localization transform",
   "//version": "Follow SemVer specs at https://semver.org/",
   "version": "0.20.0",
+  "engines": {
+    "node": ">= 12.16.0"
+  },
   "bin": {
     "fbt-collect": "dist/bin/collectFbt.bin.js",
     "fbt-manifest": "dist/bin/manifest.bin.js",
     "fbt-translate": "dist/bin/translate.bin.js"
   },
   "devDependencies": {
-    "@babel/plugin-proposal-class-properties": "7.1.0",
     "@babel/plugin-proposal-nullish-coalescing-operator": "^7.8.3",
     "@babel/plugin-proposal-optional-catch-binding": "^7.2.0",
     "@babel/plugin-proposal-optional-chaining": "^7.12.7",
+    "@babel/plugin-syntax-class-properties": "^7.2.0",
     "@babel/plugin-syntax-flow": "^7.2.0",
-    "babel-plugin-transform-flow-enums": "^0.0.1",
     "babel-preset-fbjs": "^3.1.2",
+    "babel-plugin-transform-flow-enums": "^0.0.1",
     "flow-enums-runtime": "^0.0.3",
     "gulp": "^4.0.0",
     "gulp-babel": "^8.0.0",