Use pnpm package manager

... instead of `yarn`

see https://pnpm.io/

.github/workflows/ci.yml

@@ -9,23 +9,28 @@ on:
   schedule:
     - cron: '0 3 * * *' # daily, at 3am
 
+env:
+  PNPM_VERSION: 6.19.0
+
 jobs:
   lint:
     name: Linting
     runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v2
+
+      - uses: pnpm/action-setup@v2.0.1
+        with:
+          version: ${{ env.PNPM_VERSION }}
+
       - uses: actions/setup-node@v2
         with:
           node-version: 14.x
-          cache: yarn
+          cache: pnpm
 
-      - name: install dependencies
-        run: yarn install
-
-      - name: lint
-        run: yarn lint
+      - run: pnpm install
+      - run: pnpm run lint
 
   test:
     name: Node Tests
@@ -38,16 +43,18 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
+
+      - uses: pnpm/action-setup@v2.0.1
+        with:
+          version: ${{ env.PNPM_VERSION }}
+
       - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
-          cache: yarn
-
-      - name: install dependencies
-        run: yarn install
+          cache: pnpm
 
-      - name: node tests
-        run: yarn test:node
+      - run: pnpm install
+      - run: pnpm run test:node
 
   ember-try-scenarios:
     name: Ember Tests (${{ matrix.test-suite }})
@@ -62,15 +69,17 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
+
+      - uses: pnpm/action-setup@v2.0.1
+        with:
+          version: ${{ env.PNPM_VERSION }}
+
       - uses: actions/setup-node@v2
         with:
           node-version: 14.x
-          cache: yarn
-
-      - name: install dependencies
-        run: yarn install
+          cache: pnpm
 
-      - name: test
+      - run: pnpm install
+      - run: pnpm run test:all -- --skip-cleanup
         env:
           TEST_SUITE: ${{ matrix.test-suite }}
-        run: yarn test:all --skip-cleanup

.npmignore

@@ -17,6 +17,7 @@
 .travis.yml
 bower.json
 ember-cli-build.js
+pnpm-lock.yaml
 RELEASE.md
 testem.js
 yarn.lock

RELEASE.md

@@ -39,13 +39,13 @@ Once the prep work is completed, the actual release is straight forward:
 * Next, ensure that you have installed your projects dependencies:
 
 ```
-yarn install
+pnpm install
 ```
 
 * And last (but not least 😁) do your release:
 
 ```
-yarn release
+pnpm release
 ```
 
 [release-it](https://github.com/release-it/release-it/) manages the actual

config/ember-try.js

@@ -11,8 +11,8 @@ module.exports = function() {
     getChannelURL('canary'),
   ]).then((urls) => {
     return {
-      useYarn: true,
-      command: process.env.TEST_SUITE ? `yarn ${process.env.TEST_SUITE}` : 'yarn test',
+      usePnpm: true,
+      command: process.env.TEST_SUITE ? `pnpm run ${process.env.TEST_SUITE}` : 'pnpm test',
       useVersionCompatibility: true,
       scenarios: [
         {