Allow nodejs build process to use a lower RAM value

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

docs/administration/index.md

@@ -77,9 +77,9 @@ yarn install
 Finally, we can build the front-end (this can take a few seconds).
 
 !!! warning
-    Building front-end can consume up to 512MB of RAM by default. If it's too much or not sufficient for your setup, you can adjust the maximum memory used by prefixing the command with the following option:
+    Building front-end can consume up to 2048MB of RAM by default. If it's too much or not sufficient for your setup, you can adjust the maximum memory used by prefixing the command with the following option:
     ```
-    NODE_OPTIONS=--max_old_space_size=4096
+    NODE_BUILD_MEMORY=1024
     ```
 ```bash
 yarn run build

docs/administration/upgrading.md

@@ -50,6 +50,11 @@ yarn install
 ```
 
 ### Rebuild Mobilizon's front-end
+!!! warning
+    Building front-end can consume up to 2048MB of RAM by default. If it's too much or not sufficient for your setup, you can adjust the maximum memory used by prefixing the command with the following option:
+    ```
+    NODE_BUILD_MEMORY=1024
+    ```
 ```bash
 yarn run build
 cd ../

js/vue.config.js

@@ -1,10 +1,30 @@
 const path = require("path");
+const ForkTsCheckerWebpackPlugin = require("fork-ts-checker-webpack-plugin");
 
 module.exports = {
   runtimeCompiler: true,
   lintOnSave: true,
   filenameHashing: true,
   outputDir: path.resolve(__dirname, "../priv/static"),
+  configureWebpack: (config) => {
+    // Limit the used memory when building
+    // Source : https://stackoverflow.com/a/55810460/10204399
+    // get a reference to the existing ForkTsCheckerWebpackPlugin
+    const existingForkTsChecker = config.plugins.filter(
+      (p) => p instanceof ForkTsCheckerWebpackPlugin
+    )[0];
+
+    // remove the existing ForkTsCheckerWebpackPlugin
+    // so that we can replace it with our modified version
+    config.plugins = config.plugins.filter((p) => !(p instanceof ForkTsCheckerWebpackPlugin));
+
+    // copy the options from the original ForkTsCheckerWebpackPlugin
+    // instance and add the memoryLimit property
+    const forkTsCheckerOptions = existingForkTsChecker.options;
+    forkTsCheckerOptions.memoryLimit = process.env.NODE_BUILD_MEMORY || 2048;
+
+    config.plugins.push(new ForkTsCheckerWebpackPlugin(forkTsCheckerOptions));
+  },
   // configureWebpack: {
   //   optimization: {
   //     splitChunks: {