ci: CI setup

.github/workflows/integrate.yml

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+# master only
+
+name: Integrate
+
+on:
+  push:
+    branches: [master]
+
+env:
+  SLS_IGNORE_WARNING: "*"
+  FORCE_COLOR: 1
+
+jobs:
+  linuxNode16:
+    name: "[Linux] Node.js v16: Unit tests"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Retrieve dependencies from cache
+        id: cacheNpm
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.npm
+            node_modules
+          key: npm-v16-${{ runner.os }}-${{ github.ref }}-${{ hashFiles('package.json') }}
+          restore-keys: npm-v16-${{ runner.os }}-${{ github.ref }}-
+
+      - name: Install Node.js and npm
+        uses: actions/setup-node@v1
+        with:
+          node-version: 16.x
+
+      - name: Install dependencies
+        if: steps.cacheNpm.outputs.cache-hit != 'true'
+        run: |
+          npm update --no-save
+          npm update --save-dev --no-save
+      - name: Unit tests
+        run: npm test
+
+  linuxNode18:
+    name: "[Linux] Node.js v18: Unit tests"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Retrieve dependencies from cache
+        id: cacheNpm
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.npm
+            node_modules
+          key: npm-v18-${{ runner.os }}-${{ github.ref }}-${{ hashFiles('package.json') }}
+          restore-keys: npm-v18-${{ runner.os }}-${{ github.ref }}-
+
+      - name: Install Node.js and npm
+        uses: actions/setup-node@v1
+        with:
+          node-version: 17.x
+
+      - name: Install dependencies
+        if: steps.cacheNpm.outputs.cache-hit != 'true'
+        run: |
+          npm update --no-save
+          npm update --save-dev --no-save
+
+      - name: Unit tests
+        run: npm test
+
+  linuxNode14:
+    name: "[Linux] Node.js v14: Unit tests"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Retrieve dependencies from cache
+        id: cacheNpm
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.npm
+            node_modules
+          key: npm-v14-${{ runner.os }}-${{ github.ref }}-${{ hashFiles('package.json') }}
+          restore-keys: npm-v14-${{ runner.os }}-${{ github.ref }}-
+
+      - name: Install Node.js and npm
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14.x
+
+      - name: Install dependencies
+        if: steps.cacheNpm.outputs.cache-hit != 'true'
+        run: |
+          npm update --no-save
+          npm update --save-dev --no-save
+      - name: Unit tests
+        run: npm test
+
+  linuxNode12:
+    name: "[Linux] Node.js v12: Unit tests"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Retrieve dependencies from cache
+        id: cacheNpm
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.npm
+            node_modules
+          key: npm-v12-${{ runner.os }}-${{ github.ref }}-${{ hashFiles('package.json') }}
+          restore-keys: npm-v12-${{ runner.os }}-${{ github.ref }}-
+
+      - name: Install Node.js and npm
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+
+      - name: Install dependencies
+        if: steps.cacheNpm.outputs.cache-hit != 'true'
+        run: |
+          npm update --no-save
+          npm update --save-dev --no-save
+      - name: Unit tests
+        run: npm test
+
+  linuxNode10:
+    name: "[Linux] Node.js v10: Unit tests"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Retrieve dependencies from cache
+        id: cacheNpm
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.npm
+            node_modules
+          key: npm-v10-${{ runner.os }}-${{ github.ref }}-${{ hashFiles('package.json') }}
+          restore-keys: npm-v10-${{ runner.os }}-${{ github.ref }}-
+
+      - name: Install Node.js and npm
+        uses: actions/setup-node@v1
+        with:
+          node-version: 10.x
+
+      - name: Install dependencies
+        if: steps.cacheNpm.outputs.cache-hit != 'true'
+        run: |
+          npm update --no-save
+          npm update --save-dev --no-save
+      - name: Unit tests
+        run: npm test
+
+  tagIfNewVersion:
+    name: Tag if new version
+    runs-on: ubuntu-latest
+    needs: [linuxNode16, linuxNode18, linuxNode14, linuxNode12, linuxNode10]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          # Ensure to have complete history of commits pushed with given push operation
+          # It's loose and imperfect assumption that no more than 30 commits will be pushed at once
+          fetch-depth: 30
+          # Tag needs to be pushed with real user token, otherwise pushed tag won't trigger the actions workflow
+          # Hence we're passing 'serverless-ci' user authentication token
+          token: ${{ secrets.USER_GITHUB_TOKEN }}
+      - name: Tag if new version
+        if: github.event.before != '0000000000000000000000000000000000000000' # Skip on first commit
+        run: |
+          NEW_VERSION=`git diff -U0 ${{ github.event.before }} package.json | grep '"version": "' | tail -n 1 | grep -oE "[0-9]+\.[0-9]+\.[0-9]+"` || :
+          if [ -n "$NEW_VERSION" ];
+          then
+            git tag v$NEW_VERSION
+            git push --tags
+          fi

.github/workflows/publish.yml

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+# Version tags only
+
+name: Publish
+
+on:
+  push:
+    tags:
+      - v[0-9]+.[0-9]+.[0-9]+
+
+jobs:
+  publish:
+    name: Publish
+    runs-on: ubuntu-latest
+    env:
+      # It'll work with secrets.GITHUB_TOKEN (which is provided by GitHub unconditionally)
+      # Still then release author would be "github-actions"
+      GITHUB_TOKEN: ${{ secrets.USER_GITHUB_TOKEN }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Retrieve dependencies from cache
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.npm
+            node_modules
+          key: npm-v16-${{ runner.os }}-refs/heads/master-${{ hashFiles('package.json') }}
+
+      - name: Install Node.js and npm
+        uses: actions/setup-node@v1
+        with:
+          node-version: 16.x
+          registry-url: https://registry.npmjs.org
+
+      - name: Build
+        run: npm run build
+
+      - name: Publish new version
+        # Note: Setting NODE_AUTH_TOKEN as job|workspace wide env var won't work
+        #       as it appears actions/setup-node sets own value
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: npm publish
+
+      # Normally we have a guarantee that deps are already there, still it may not be the case when:
+      # - `master` build for same commit failed (and we still pushed tag manually)
+      # - We've pushed tag manually before `master` build finalized
+      - name: Install dependencies
+        if: steps.cacheNpm.outputs.cache-hit != 'true'
+        run: |
+          npm update --no-save
+          npm update --save-dev --no-save
+
+      - name: Publish release notes
+        run: |
+          TEMP_ARRAY=($(echo $GITHUB_REF | tr "/" "\n"))
+          TAG=${TEMP_ARRAY[@]: -1}
+          npx github-release-from-cc-changelog $TAG