Upgrade to eslint v9

.eslintignore

@@ -1,2 +0,0 @@
-lib/testpilot/*.js
-coverage

.eslintrc.js

@@ -1,69 +0,0 @@
-module.exports = {
-  "parserOptions": {
-    "ecmaVersion": 2021
-  },
-  "env": {
-    "browser": true,
-    "es6": true,
-    "node": true,
-    "webextensions": true
-  },
-  "globals": {
-    "Utils": true,
-    "CustomizableUI": true,
-    "CustomizableWidgets": true,
-    "SessionStore": true,
-    "Services": true,
-    "Components": true,
-    "XPCOMUtils": true,
-    "OS": true,
-    "ADDON_UNINSTALL": true,
-    "ADDON_DISABLE": true,
-    "CONTAINER_ORDER_STORAGE_KEY": true,
-    "proxifiedContainers": true,
-    "MozillaVPN": true,
-    "MozillaVPN_Background": true
-  },
-  "plugins": [
-    "promise",
-    "no-unsanitized"
-  ],
-  "extends": [
-    "eslint:recommended"
-  ],
-  "root": true,
-  "rules": {
-    "promise/always-return": "off",
-    "promise/avoid-new": "off",
-    "promise/catch-or-return": "error",
-    "promise/no-callback-in-promise": "warn",
-    "promise/no-native": "off",
-    "promise/no-nesting": "warn",
-    "promise/no-promise-in-callback": "warn",
-    "promise/no-return-wrap": "error",
-    "promise/param-names": "error",
-
-    "no-unsanitized/method": [
-      "error"
-    ],
-    "no-unsanitized/property": [
-      "error",
-      {
-        "escape": {
-          "taggedTemplates": ["Utils.escaped"]
-        }
-      }
-    ],
-
-    "eqeqeq": "error",
-    "indent": ["error", 2],
-    "linebreak-style": ["error", "unix"],
-    "no-throw-literal": "error",
-    "no-warning-comments": "warn",
-    "no-var": "error",
-    "prefer-const": "error",
-    "quotes": ["error", "double"],
-    "radix": "error",
-    "semi": ["error", "always"]
-  }
-};

eslint.config.js

@@ -0,0 +1,102 @@
+const {
+  defineConfig,
+  globalIgnores,
+} = require("eslint/config");
+
+const globals = require("globals");
+const promise = require("eslint-plugin-promise");
+const noUnsanitized = require("eslint-plugin-no-unsanitized");
+const js = require("@eslint/js");
+
+module.exports = defineConfig([{
+  languageOptions: {
+    "ecmaVersion": 2021,
+    parserOptions: {},
+
+    globals: {
+      ...globals.browser,
+      ...globals.node,
+      ...globals.webextensions,
+      "Utils": true,
+      "CustomizableUI": true,
+      "CustomizableWidgets": true,
+      "SessionStore": true,
+      "Services": true,
+      "Components": true,
+      "XPCOMUtils": true,
+      "OS": true,
+      "ADDON_UNINSTALL": true,
+      "ADDON_DISABLE": true,
+      "CONTAINER_ORDER_STORAGE_KEY": true,
+      "proxifiedContainers": true,
+      "MozillaVPN": true,
+      "MozillaVPN_Background": true,
+    },
+  },
+
+  plugins: {
+    js,
+    promise,
+    "no-unsanitized": noUnsanitized,
+  },
+
+  extends: ["js/recommended"],
+
+  "rules": {
+    "promise/always-return": "off",
+    "promise/avoid-new": "off",
+    "promise/catch-or-return": "error",
+    "promise/no-callback-in-promise": "warn",
+    "promise/no-native": "off",
+    "promise/no-nesting": "warn",
+    "promise/no-promise-in-callback": "warn",
+    "promise/no-return-wrap": "error",
+    "promise/param-names": "error",
+    "no-unsanitized/method": ["error"],
+
+    "no-unsanitized/property": ["error", {
+      "escape": {
+        "taggedTemplates": ["Utils.escaped"],
+      },
+    }],
+
+    "eqeqeq": "error",
+    "indent": ["error", 2],
+    "linebreak-style": ["error", "unix"],
+    "no-throw-literal": "error",
+    "no-warning-comments": "warn",
+    "no-var": "error",
+    "prefer-const": "error",
+    "quotes": ["error", "double"],
+    "radix": "error",
+    "semi": ["error", "always"],
+  },
+},
+
+{
+  files: ["test/**/*.js"],
+  languageOptions: {
+    globals: {
+      ...globals.mocha,
+    },
+  },
+  "rules": {
+    "no-restricted-globals": ["error", "browser"],
+  },
+},
+
+{
+  files: ["src/js/**/*.js"],
+  languageOptions: {
+    globals: {
+      "assignManager": true,
+      "badge": true,
+      "backgroundLogic": true,
+      "identityState": true,
+      "messageHandler": true,
+      "sync": true,
+    },
+  },
+},
+
+globalIgnores(["lib/testpilot/*.js", "**/coverage"])]);

package.json

@@ -7,14 +7,15 @@
   "bugs": {
     "url": "https://github.com/mozilla/multi-account-containers/issues"
   },
-  "dependencies": {},
   "devDependencies": {
+    "@eslint/js": "^9.36.0",
     "addons-linter": "^5.28.0",
     "ajv": "^6.6.3",
     "chai": "^4.2.0",
-    "eslint": "^7.32.0",
+    "eslint": "^9.36.0",
-    "eslint-plugin-no-unsanitized": "^4.0.0",
+    "eslint-plugin-no-unsanitized": "^4.1.4",
-    "eslint-plugin-promise": "^5.2.0",
+    "eslint-plugin-promise": "^7.2.1",
+    "globals": "^16.4.0",
     "htmllint-cli": "0.0.7",
     "json": ">=10.0.0",
     "mocha": "^10.1.0",

src/js/.eslintrc.js

@@ -1,14 +0,0 @@
-module.exports = {
-  "extends": [
-    "../../.eslintrc.js"
-  ],
-  "globals": {
-    "assignManager": true,
-    "badge": true,
-    "backgroundLogic": true,
-    "identityState": true,
-    "messageHandler": true,
-    "sync": true,
-    "Utils": true
-  }
-};

src/js/background/assignManager.js

@@ -77,7 +77,6 @@ window.assignManager = {
           this.setExempted(pageUrlorUrlKey, tabId);
         });
       }
-      // eslint-disable-next-line require-atomic-updates
       data.identityMacAddonUUID =
         await identityState.lookupMACaddonUUID(data.userContextId);
       await this.area.set({
@@ -233,7 +232,7 @@ window.assignManager = {
     try {
       container = await browser.contextualIdentities
         .get(backgroundLogic.cookieStoreId(siteSettings.userContextId));
-    } catch (e) {
+    } catch {
       container = false;
     }
 

src/js/background/backgroundLogic.js

@@ -239,7 +239,7 @@ const backgroundLogic = {
         containerState.isIsolated = "locked";
       }
       return await identityState.storageArea.set(cookieStoreId, containerState);
-    } catch (error) {
+    } catch {
       // console.error(`No container: ${cookieStoreId}`);
     }
   },

src/js/background/messageHandler.js

@@ -141,7 +141,6 @@ const messageHandler = {
         if (!extensionInfo.permissions.includes("contextualIdentities")) {
           throw new Error("Missing contextualIdentities permission");
         }
-        // eslint-disable-next-line require-atomic-updates
         externalExtensionAllowed[sender.id] = true;
       }
       let response;

src/js/background/mozillaVpnBackground.js

@@ -27,7 +27,7 @@ const MozillaVPN_Background = {
       // invalid proxy connection.
       this.port.onDisconnect.addListener(() => this.increaseIsolationKey());
 
-    } catch(e) {
+    } catch {
       this._installed = false;
       this._connected = false;
     }

src/js/background/sync.js

@@ -338,7 +338,7 @@ async function reconcileIdentities(){
     if (deletedCookieStoreId){
       try{
         await browser.contextualIdentities.remove(deletedCookieStoreId);
-      } catch (error) {
+      } catch {
         // if the identity we are deleting is not there, that's fine.
         console.error("Error deleting contextualIdentity", deletedCookieStoreId);
         continue;
@@ -514,7 +514,7 @@ async function reconcileSiteAssignments() {
         await setAssignmentWithUUID(assignedSite, urlKey);
         continue;
       }
-    } catch (error) {
+    } catch {
       // this is probably old or incorrect site info in Sync
       // skip and move on.
     }
@@ -565,7 +565,6 @@ async function setAssignmentWithUUID(assignedSite, urlKey) {
   const uuid = assignedSite.identityMacAddonUUID;
   const cookieStoreId = await identityState.lookupCookieStoreId(uuid);
   if (cookieStoreId) {
-    // eslint-disable-next-line require-atomic-updates
     assignedSite.userContextId = cookieStoreId
       .replace(/^firefox-container-/, "");
     await assignManager.storageArea.set(

src/js/mozillaVpn.js

@@ -88,7 +88,7 @@ const MozillaVPN = {
         el.classList.remove("display-none");
       });
       this.setStatusIndicatorIcons(mozillaVpnInstalled);
-    } catch (e) {
+    } catch {
       mozVpnLogotypes.forEach(el => {
         el.style.display = "none";
       });
@@ -139,7 +139,7 @@ const MozillaVPN = {
         try {
           const proxy = await proxifiedContainers.retrieve(identity.cookieStoreId);
           proxies[identity.cookieStoreId] = proxy;
-        } catch (e) {
+        } catch {
           proxies[identity.cookieStoreId] = {};
         }
       }

src/js/popup.js

@@ -198,7 +198,7 @@ const Logic = {
     // Handle old style rejection with null and also Promise.reject new style
     try {
       return await browser.contextualIdentities.get(cookieStoreId) || defaultContainer;
-    } catch (e) {
+    } catch {
       return defaultContainer;
     }
   },
@@ -425,7 +425,7 @@ const Logic = {
           cookieStoreId: identity.cookieStoreId
         });
         window.close();
-      } catch (e) {
+      } catch {
         window.close();
       }
     }
@@ -762,7 +762,7 @@ Logic.registerPanel(P_CONTAINERS_LIST, {
           method: "sortTabs"
         });
         window.close();
-      } catch (e) {
+      } catch {
         window.close();
       }
     });
@@ -851,7 +851,7 @@ Logic.registerPanel(P_CONTAINERS_LIST, {
             cookieStoreId: identity.cookieStoreId
           });
           window.close();
-        } catch (e) {
+        } catch {
           window.close();
         }
       });
@@ -862,7 +862,7 @@ Logic.registerPanel(P_CONTAINERS_LIST, {
             cookieStoreId: identity.cookieStoreId
           });
           window.close();
-        } catch (e) {
+        } catch {
           window.close();
         }
       });
@@ -912,7 +912,7 @@ Logic.registerPanel(P_CONTAINER_INFO, {
       incompatible = await browser.runtime.sendMessage({
         method: "checkIncompatibleAddons"
       });
-    } catch (e) {
+    } catch {
       throw new Error("Could not check for incompatible add-ons.");
     }
 
@@ -947,7 +947,7 @@ Logic.registerPanel(P_CONTAINER_INFO, {
           cookieStoreId: identity.cookieStoreId
         });
         window.close();
-      } catch (e) {
+      } catch {
         window.close();
       }
     });
@@ -1009,7 +1009,7 @@ Logic.registerPanel(P_CONTAINER_INFO, {
           cookieStoreId: Logic.currentCookieStoreId()
         });
         window.close();
-      } catch (e) {
+      } catch {
         window.close();
       }
     });
@@ -1086,7 +1086,7 @@ Logic.registerPanel(OPEN_NEW_CONTAINER_PICKER, {
           cookieStoreId: identity.cookieStoreId
         });
         window.close();
-      } catch (e) {
+      } catch {
         window.close();
       }
     };
@@ -1848,7 +1848,7 @@ Logic.registerPanel(P_CONTAINER_EDIT, {
       });
       await Logic.refreshIdentities();
       Logic.showPreviousPanel();
-    } catch (e) {
+    } catch {
       Logic.showPreviousPanel();
     }
   },
@@ -2339,7 +2339,7 @@ Logic.registerPanel(P_CONTAINER_DELETE, {
         await Logic.removeIdentity(Utils.userContextId(Logic.currentIdentity().cookieStoreId));
         await Logic.refreshIdentities();
         Logic.showPreviousPanel();
-      } catch (e) {
+      } catch {
         Logic.showPreviousPanel();
       }
     });

test/.eslintrc.js

@@ -1,12 +0,0 @@
-module.exports = {
-  env: {
-    "node": true,
-    "mocha": true
-  },
-  "parserOptions": {
-    "ecmaVersion": 2018
-  },
-  "rules": {
-    "no-restricted-globals": ["error", "browser"]
-  }
-};

test/common.js

@@ -1,5 +1,4 @@
 if (!process.listenerCount("unhandledRejection")) {
-  // eslint-disable-next-line no-console
   process.on("unhandledRejection", r => console.log(r));
 }