feat(CI): migrate from Travis to GitHub Actions (#2887)

Co-authored-by: Yehonal <yehonal.azeroth@gmail.com>

.github/workflows/core_build.yml

@@ -0,0 +1,59 @@
+name: core-build
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [clang6, clang7]
+        modules: [with, without]
+    runs-on: ubuntu-18.04
+    name: ${{ matrix.compiler }}-${{ matrix.modules }}-modules
+    env:
+      COMPILER: ${{ matrix.compiler }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Checkout modules
+        run: ./apps/ci/ci-install-modules.sh
+        if: matrix.modules == 'with'
+      - name: Cache
+        uses: actions/cache@v1.1.2
+        with:
+          path: /home/runner/.ccache
+          key: ccache:${{ matrix.compiler }}:${{ matrix.modules }}-modules:${{ github.ref }}:${{ github.sha }}
+          restore-keys: |
+            ccache:${{ matrix.compiler }}:${{ matrix.modules }}-modules:${{ github.ref }}
+            ccache:${{ matrix.compiler }}:${{ matrix.modules }}-modules
+            ccache:${{ matrix.compiler }}
+            ccache
+      - name: Configure OS
+        run: source ./apps/ci/ci-install.sh
+        env:
+          CONTINUOUS_INTEGRATION: true
+      - name: Import db
+        run: source ./apps/ci/ci-import-db.sh
+      - name: Build
+        run: source ./apps/ci/ci-compile.sh
+      - name: Dry run
+        run: source ./apps/ci/ci-worldserver-dry-run.sh
+      - name: Check startup errors
+        run: source ./apps/ci/ci-error-check.sh
+
+  docker-build:
+    strategy:
+      fail-fast: false
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Configure
+        run: |
+          docker --version
+          docker-compose --version
+          ./apps/ci/docker/ci-docker-config.sh
+          ./bin/acore-docker-generate-etc
+      - name: Build
+        run: |
+          ./bin/acore-docker-build-no-scripts

.github/workflows/import_pending_sql.yml

@@ -0,0 +1,32 @@
+name: import-pending-sql
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  import-pending-sql:
+    strategy:
+      fail-fast: false
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Extract branch name
+        run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
+        id: extract_branch
+      - name: Import and commit pending sql
+        run: |
+          git config user.email "azerothcorebot@gmail.com" && git config user.name "AzerothCoreBot"
+          cd bin/
+          source acore-db-pendings
+          cd ..
+          git fetch --unshallow origin ${BRANCH}
+          git add -A .
+          git commit -am "Import pending SQL update file..." -m "Referenced commit(s):${GITHUB_SHA}" || true
+        env:
+          BRANCH: ${{ steps.extract_branch.outputs.branch }}
+      - name: Push changes
+        uses: ad-m/github-push-action@fe38f0a751bf9149f0270cc1fe20bf9156854365
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          branch: ${{ steps.extract_branch.outputs.branch }}