Merged changes from upstream/develop

Author: fpierfed

.eslintignore.errorfiles

@@ -1,7 +1,9 @@
 module.exports = {
-    extends: ["matrix-org", "matrix-org/react-legacy"],
-    parser: "babel-eslint",
-
+    plugins: ["matrix-org"],
+    extends: [
+        "plugin:matrix-org/babel",
+        "plugin:matrix-org/react",
+    ],
     env: {
         browser: true,
         node: true,
@@ -15,21 +17,64 @@ module.exports = {
         "prefer-promise-reject-errors": "off",
         "no-async-promise-executor": "off",
         "quotes": "off",
-    },
+        "no-extra-boolean-cast": "off",
+
+        // Bind or arrow functions in props causes performance issues (but we
+        // currently use them in some places).
+        // It's disabled here, but we should using it sparingly.
+        "react/jsx-no-bind": "off",
+        "react/jsx-key": ["error"],
 
+        "no-restricted-properties": [
+            "error",
+            ...buildRestrictedPropertiesOptions(
+                ["window.innerHeight", "window.innerWidth", "window.visualViewport"],
+                "Use UIStore to access window dimensions instead.",
+            ),
+            ...buildRestrictedPropertiesOptions(
+                ["*.mxcUrlToHttp", "*.getHttpUriForMxc"],
+                "Use Media helper instead to centralise access for customisation.",
+            ),
+        ],
+    },
     overrides: [{
-        "files": ["src/**/*.{ts,tsx}"],
-        "extends": ["matrix-org/ts"],
-        "rules": {
+        files: [
+            "src/**/*.{ts,tsx}",
+            "test/**/*.{ts,tsx}",
+        ],
+        extends: [
+            "plugin:matrix-org/typescript",
+            "plugin:matrix-org/react",
+        ],
+        rules: {
+            // Things we do that break the ideal style
+            "prefer-promise-reject-errors": "off",
+            "quotes": "off",
+            "no-extra-boolean-cast": "off",
+
+            // Remove Babel things manually due to override limitations
+            "@babel/no-invalid-this": ["off"],
+
             // We're okay being explicit at the moment
             "@typescript-eslint/no-empty-interface": "off",
             // We disable this while we're transitioning
             "@typescript-eslint/no-explicit-any": "off",
             // We'd rather not do this but we do
             "@typescript-eslint/ban-ts-comment": "off",
-
-            "quotes": "off",
-            "no-extra-boolean-cast": "off",
         },
     }],
 };
+
+function buildRestrictedPropertiesOptions(properties, message) {
+    return properties.map(prop => {
+        let [object, property] = prop.split(".");
+        if (object === "*") {
+            object = undefined;
+        }
+        return {
+            object,
+            property,
+            message,
+        };
+    });
+}

.eslintrc.js

@@ -0,0 +1,3 @@
+<!-- Please read https://github.com/matrix-org/matrix-js-sdk/blob/develop/CONTRIBUTING.rst before submitting your pull request -->
+
+<!-- Include a Sign-Off as described in https://github.com/matrix-org/matrix-js-sdk/blob/develop/CONTRIBUTING.rst#sign-off -->

.flowconfig

@@ -0,0 +1,41 @@
+name: Develop
+on:
+    push:
+        branches: [develop]
+    pull_request:
+        branches: [develop]
+jobs:
+    end-to-end:
+        runs-on: ubuntu-latest
+        container: vectorim/element-web-ci-e2etests-env:latest
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v2
+            - name: Prepare End-to-End tests
+              run: ./scripts/ci/prepare-end-to-end-tests.sh
+            - name: Run End-to-End tests
+              run: ./scripts/ci/run-end-to-end-tests.sh
+            - name: Archive logs
+              uses: actions/upload-artifact@v2
+              if: ${{ always() }}
+              with:
+                path: |
+                    test/end-to-end-tests/logs/**/*
+                    test/end-to-end-tests/synapse/installations/consent/homeserver.log
+                retention-days: 14
+            - name: Download previous benchmark data
+              uses: actions/cache@v1
+              with:
+                path: ./cache
+                key: ${{ runner.os }}-benchmark
+            - name: Store benchmark result
+              uses: matrix-org/github-action-benchmark@jsperfentry-1
+              with:
+                tool: 'jsperformanceentry'
+                output-file-path: test/end-to-end-tests/performance-entries.json
+                fail-on-alert: false
+                comment-on-alert: false
+                # Only temporary to monitor where failures occur
+                alert-comment-cc-users: '@gsouquet'
+                github-token: ${{ secrets.DEPLOY_GH_PAGES }}
+                auto-push: ${{ github.ref == 'refs/heads/develop' }}