action: support bazel crossbuild and upload the cache (#65474)

.github/actions/tidb_build/action.yml

@@ -0,0 +1,31 @@
+name: TiDB Build
+description: Common steps to run TiDB Bazel build cross-platform
+inputs:
+  go-version:
+    description: Go version to setup
+    required: false
+    default: "1.25"
+  bazelrc:
+    description: Bazelrc content from secrets
+    required: true
+  gcp_sa_key:
+    description: GCP service account key JSON content
+    required: true
+runs:
+  using: composite
+  steps:
+    - name: Set up bazelisk
+      uses: bazel-contrib/setup-bazel@0.16.0
+      with:
+        bazelisk-cache: true
+        repository-cache: true
+        external-cache: false
+        disk-cache: ${{ github.workflow }}}
+        google-credentials: ${{ inputs.gcp_sa_key }}
+        bazelrc: ${{ inputs.bazelrc }}
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: ${{ inputs.go-version }}
+        cache: false

.github/workflows/bazel-build-crossbuild.yml

@@ -0,0 +1,43 @@
+name: Bazel Crossbuild for TiDB/Lightning
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+jobs:
+  master:
+    name: Bazel Crossbuild
+    runs-on: ${{ matrix.os }}-latest
+    strategy:
+      matrix:
+        os:
+          - macos
+          - ubuntu
+    steps:
+      - uses: actions/checkout@v6
+      - name: Build Prepare
+        uses: ./.github/actions/tidb_build
+        with:
+          bazelrc: ${{ secrets.BAZELRC }}
+          gcp_sa_key: ${{ secrets.GCP_SA_KEY }}
+          go-version: 1.25
+      - name: Run Build
+        shell: bash
+        run: |
+          #!/bin/bash
+          unset CI
+          system_name=$(uname -s)
+          if [ "$system_name" == "Darwin" ]; then
+            sed -i '' '/bazel-cache/d' DEPS.bzl
+            sed -i '' '/ats.apps.svc/d' DEPS.bzl
+            sed -i '' '/bazel-cache/d' WORKSPACE
+            sed -i '' '/ats.apps.svc/d' WORKSPACE
+          elif [ "$system_name" == "Linux" ]; then
+            sed -i '/bazel-cache/d' DEPS.bzl
+            sed -i '/ats.apps.svc/d' DEPS.bzl
+            sed -i '/bazel-cache/d' WORKSPACE
+            sed -i '/ats.apps.svc/d' WORKSPACE
+          fi
+          make bazel_bin