Bump used node version to 18 (#4778)

Still assume node 16 compatibility for now.

.github/workflows/deploy-win.yml

@@ -20,10 +20,10 @@ jobs:
         with:
           fetch-depth: 0
           ref: ${{ github.event.inputs.buildnumber }}
-      - name: Use Node.js 16.x
+      - name: Use Node.js 18.x
         uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: 18.x
           cache: npm
       - name: Build distribution
         id: build_dist
@@ -41,10 +41,10 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - name: Use Node.js 16.x
+      - name: Use Node.js 18.x
         uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: 18.x
           cache: npm
       - name: Download the built distribution
         uses: actions/download-artifact@v3

.github/workflows/test-and-deploy.yml

@@ -10,10 +10,10 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - name: Use Node.js 16.x
+      - name: Use Node.js 18.x
         uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: 18.x
           cache: npm
       - name: Install prerequisites
         run: make prereqs
@@ -37,10 +37,10 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - name: Use Node.js 16.x
+      - name: Use Node.js 18.x
         uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: 18.x
           cache: npm
       - name: Build distribution
         id: build_dist
@@ -59,10 +59,10 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - name: Use Node.js 16.x
+      - name: Use Node.js 18.x
         uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: 18.x
           cache: npm
       - name: Download the built distribution
         uses: actions/download-artifact@v3

.github/workflows/test-win.yml

@@ -14,10 +14,10 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - name: Use Node.js 16.x
+      - name: Use Node.js 18.x
         uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: 18.x
           cache: npm
       - name: Install prerequisites
         run: make prereqs

CONTRIBUTING.md

@@ -20,7 +20,7 @@ in the right direction.
 
 ## Node version
 
-**Compiler Explorer** currently targets [Node.js](https://nodejs.org/) LTS version 16 so it's better if you do so as
+**Compiler Explorer** currently targets [Node.js](https://nodejs.org/) LTS version 18 so it's better if you do so as
 well when testing your changes locally.
 
 ## In brief

README.md

@@ -58,7 +58,7 @@ running with an Explorer running on port 10240 on your local machine:
 [http://localhost:10240/](http://localhost:10240/). If this doesn't work for you, please contact us, as we consider it
 important you can quickly and easily get running. Currently, **Compiler Explorer** requires
 [`node` 16 _(LTS version)_](CONTRIBUTING.md#node-version) installed, either on the path or at `NODE_DIR` (an environment
-variable or `make` parameter).
+variable or `make` parameter), and will soon be moving to v18.
 
 Running with `make EXTRA_ARGS='--language LANG'` will allow you to load `LANG` exclusively, where `LANG` is one for the
 language ids/aliases defined in `lib/languages.ts`. For example, to only run **Compiler Explorer** with C++ support,

etc/scripts/find-node

@@ -25,7 +25,7 @@ find_node() {
 NODE="$(find_node)"
 
 NODE_MIN_VERSION=16
-NODE_VERSION_USED=16
+NODE_VERSION_USED=18
 NODE_VERSION=$(${NODE} --version)
 NODE_MAJOR_VERSION=$(echo "${NODE_VERSION}" | cut -f1 -d. | sed 's/^v//g')