1 files changed, 0 insertions, 131 deletions
diff --git a/config/helpers/incremental_webpack_compiler.js b/config/helpers/incremental_webpack_compiler.js
deleted file mode 100644
index 5d4f9bd040d..00000000000
--- a/config/helpers/incremental_webpack_compiler.js
+++ /dev/null
@@ -1,131 +0,0 @@
-/* eslint-disable max-classes-per-file, no-underscore-dangle */
-const fs = require('fs');
-const path = require('path');
-
-const log = (msg, ...rest) => console.log(`IncrementalWebpackCompiler: ${msg}`, ...rest);
-
-// If we force a recompile immediately, the page reload doesn't seem to work.
-// Five seconds seem to work fine and the user can read the message
-const TIMEOUT = 5000;
-
-/* eslint-disable class-methods-use-this */
-class NoopCompiler {
-  constructor() {
-    this.enabled = false;
-  }
-
-  filterEntryPoints(entryPoints) {
-    return entryPoints;
-  }
-
-  logStatus() {}
-
-  setupMiddleware() {}
-}
-/* eslint-enable class-methods-use-this */
-
-class IncrementalWebpackCompiler {
-  constructor(historyFilePath) {
-    this.enabled = true;
-    this.history = {};
-    this.compiledEntryPoints = new Set([
-      // Login page
-      'pages.sessions.new',
-      // Explore page
-      'pages.root',
-    ]);
-    this.historyFilePath = historyFilePath;
-    this._loadFromHistory();
-  }
-
-  filterEntryPoints(entrypoints) {
-    return Object.fromEntries(
-      Object.entries(entrypoints).map(([key, val]) => {
-        if (this.compiledEntryPoints.has(key)) {
-          return [key, val];
-        }
-        return [key, ['./webpack_non_compiled_placeholder.js']];
-      }),
-    );
-  }
-
-  logStatus(totalCount) {
-    const current = this.compiledEntryPoints.size;
-    log(`Currently compiling route entrypoints: ${current} of ${totalCount}`);
-  }
-
-  setupMiddleware(app, server) {
-    app.use((req, res, next) => {
-      const fileName = path.basename(req.url);
-
-      /**
-       * We are only interested in files that have a name like `pages.foo.bar.chunk.js`
-       * because those are the ones corresponding to our entry points.
-       *
-       * This filters out hot update files that are for example named "pages.foo.bar.[hash].hot-update.js"
-       */
-      if (fileName.startsWith('pages.') && fileName.endsWith('.chunk.js')) {
-        const chunk = fileName.replace(/\.chunk\.js$/, '');
-
-        this._addToHistory(chunk);
-
-        if (!this.compiledEntryPoints.has(chunk)) {
-          log(`First time we are seeing ${chunk}. Adding to compilation.`);
-
-          this.compiledEntryPoints.add(chunk);
-
-          setTimeout(() => {
-            server.middleware.invalidate(() => {
-              if (server.sockets) {
-                server.sockWrite(server.sockets, 'content-changed');
-              }
-            });
-          }, TIMEOUT);
-        }
-      }
-
-      next();
-    });
-  }
-
-  // private methods
-
-  _addToHistory(chunk) {
-    if (!this.history[chunk]) {
-      this.history[chunk] = { lastVisit: null, count: 0 };
-    }
-    this.history[chunk].lastVisit = Date.now();
-    this.history[chunk].count += 1;
-
-    try {
-      fs.writeFileSync(this.historyFilePath, JSON.stringify(this.history), 'utf8');
-    } catch (e) {
-      log('Warning – Could not write to history', e.message);
-    }
-  }
-
-  _loadFromHistory() {
-    try {
-      this.history = JSON.parse(fs.readFileSync(this.historyFilePath, 'utf8'));
-      const entryPoints = Object.keys(this.history);
-      log(`Successfully loaded history containing ${entryPoints.length} entry points`);
-      /*
-      TODO: Let's ask a few folks to give us their history file after a milestone of usage
-            Then we can make smarter decisions on when to throw out rather than rendering everything
-            Something like top 20/30/40 entries visited in the last 7/10/15 days might be sufficient
-       */
-      this.compiledEntryPoints = new Set([...this.compiledEntryPoints, ...entryPoints]);
-    } catch (e) {
-      log(`No history found...`);
-    }
-  }
-}
-
-module.exports = (enabled, historyFilePath) => {
-  log(`Status – ${enabled ? 'enabled' : 'disabled'}`);
-
-  if (enabled) {
-    return new IncrementalWebpackCompiler(historyFilePath);
-  }
-  return new NoopCompiler();
-};