switch to yarn 3

.circleci/config.yml

@@ -8,7 +8,7 @@ commands:
       - restore_cache:
           keys:
             - yarn-{{ checksum "yarn.lock" }}
-      - run: yarn install --immutable --frozen-lockfile
+      - run: yarn install --immutable
       - run: yarn test
       - save_cache:
           key: yarn-{{ checksum "yarn.lock" }}

.gitignore

@@ -6,3 +6,5 @@ yarn-error.log
 .nyc_output
 dist/
 docs/
+.yarn/*.gz
+.yarn/cache

.yarnrc.yml

@@ -0,0 +1,27 @@
+enableTelemetry: false
+
+logFilters:
+  - code: YN0002
+    level: discard
+  - code: YN0004
+    level: discard
+  - code: YN0032
+    level: discard
+  - code: YN0060
+    level: discard
+  - code: YN0061
+    level: discard
+  - code: YN0062
+    level: discard
+
+nodeLinker: node-modules
+
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-workspace-tools.cjs
+    spec: "@yarnpkg/plugin-workspace-tools"
+  - path: .yarn/plugins/@yarnpkg/plugin-outdated.cjs
+    spec: "https://github.com/mskelton/yarn-plugin-outdated/raw/v2.3.0/bundles/@yarnpkg/plugin-outdated.js"
+  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
+    spec: "@yarnpkg/plugin-interactive-tools"
+
+yarnPath: .yarn/releases/yarn-3.1.1.cjs

package.json

@@ -11,9 +11,7 @@
   "engines": {
     "node": ">=12.0.0"
   },
-  "bin": {
-    "image-size": "bin/image-size.js"
-  },
+  "bin": "bin/image-size.js",
   "scripts": {
     "pretest": "eslint --ext .ts,.js bin lib specs",
     "test": "nyc mocha",
@@ -64,5 +62,6 @@
   },
   "dependencies": {
     "queue": "6.0.2"
-  }
+  },
+  "packageManager": "yarn@3.1.1"
 }