feat(packages): add commons package

This is an import of 166ca8da12
with some changes to make it fit into the mono repo.
- TypedEventEmitter has been replaced with EventEmitter2 because EventEmitter2 is faster and TypedEventEmitter had some troubles with the new way of compiling.
- tsc-esm has been replaced with microbundle. The problems that lib0 doesn't export its types correctly has been solved using yarn patch.

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

.github/workflows/backend-docker.yml

@@ -39,6 +39,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'backend/**'
               - '.github/**'
               - '.yarn/**'

.github/workflows/backend-e2e-tests.yml

@@ -40,6 +40,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'backend/**'
               - '.github/**'
               - '.yarn/**'

.github/workflows/backend-tests.yml

@@ -41,6 +41,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'backend/**'
               - '.github/**'
               - '.yarn/**'

.github/workflows/commons-lint.yml

@@ -0,0 +1,60 @@
+# SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+#
+# SPDX-License-Identifier: AGPL-3.0-only
+
+name: Commons / Lint
+
+on:
+  push:
+    branches: [ develop ]
+  pull_request:
+    branches: [ develop ]
+
+env:
+  NODE_VERSION: 18
+
+defaults:
+  run:
+    working-directory: commons
+
+jobs:
+  changes:
+    name: Check for commons changes
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+    outputs:
+      changed: ${{ github.event_name == 'push' || steps.changed.outputs.files }}
+    steps:
+      - uses: actions/checkout@v3
+        if: github.event_name != 'push'
+
+      - name: Check for frontend file changes
+        if: github.event_name != 'push'
+        uses: dorny/paths-filter@v2
+        id: changed
+        with:
+          filters: |
+            files:
+              - 'commons/**'
+              - '.github/**'
+              - '.yarn/**'
+
+  lint:
+    needs: changes
+    runs-on: ubuntu-latest
+    name: Lints all .ts and .tsx files
+    steps:
+      - name: Checkout repository
+        if: needs.changes.outputs.changed == 'true'
+        uses: actions/checkout@v3
+
+      - name: Setup node
+        if: needs.changes.outputs.changed == 'true'
+        uses: ./.github/actions/setup-node
+        with:
+          NODE_VERSION: ${{ env.NODE_VERSION }}
+
+      - name: Lint code
+        if: needs.changes.outputs.changed == 'true'
+        run: yarn lint

.github/workflows/commons-tests.yml

@@ -0,0 +1,68 @@
+# SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+#
+# SPDX-License-Identifier: AGPL-3.0-only
+
+name: Commons / Run unit tests & build
+
+on:
+  push:
+    branches: [ develop ]
+  pull_request:
+    branches: [ develop ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    working-directory: commons
+
+jobs:
+  changes:
+    name: Check for commons changes
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+    outputs:
+      changed: ${{ github.event_name == 'push' || steps.changed.outputs.files }}
+    steps:
+      - uses: actions/checkout@v3
+        if: github.event_name != 'push'
+
+      - name: Check for frontend file changes
+        if: github.event_name != 'push'
+        uses: dorny/paths-filter@v2
+        id: changed
+        with:
+          filters: |
+            files:
+              - 'commons/**'
+              - '.github/**'
+              - '.yarn/**'
+
+  build:
+    needs: changes
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [ '14', '16', '18' ]
+    name: Test and build with NodeJS ${{ matrix.node }}
+    steps:
+      - name: Checkout repository
+        if: needs.changes.outputs.changed == 'true'
+        uses: actions/checkout@v3
+
+      - name: Setup node
+        if: needs.changes.outputs.changed == 'true'
+        uses: ./.github/actions/setup-node
+        with:
+          NODE_VERSION: ${{ matrix.node }}
+
+      - name: Test Project
+        if: needs.changes.outputs.changed == 'true'
+        run: yarn test
+
+      - name: Build project
+        if: needs.changes.outputs.changed == 'true'
+        run: yarn build

.github/workflows/frontend-docker.yml

@@ -35,6 +35,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'frontend/**'
               - '.github/**'
               - '.yarn/**'

.github/workflows/frontend-e2e-tests.yml

@@ -46,6 +46,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'frontend/**'
               - '.github/**'
               - '.yarn/**'

.github/workflows/frontend-lint.yml

@@ -36,6 +36,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'frontend/**'
               - '.github/**'
               - '.yarn/**'

.github/workflows/frontend-netlify-deploy-main.yml

@@ -39,6 +39,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'frontend/**'
               - '.github/**'
               - '.yarn/**'

.github/workflows/frontend-netlify-deploy-pr.yml

@@ -57,6 +57,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'frontend/**'
               - '.github/**'
               - '.yarn/**'

.github/workflows/frontend-test-and-build.yml

@@ -37,6 +37,7 @@ jobs:
         with:
           filters: |
             files:
+              - 'commons/**'
               - 'frontend/**'
               - '.github/**'
               - '.yarn/**'