chore: switch to Buildbuddy for RBE testing

.bazelrc

@@ -42,4 +42,27 @@ build:ubsan --features ubsan
 build:ubsan --strip never
 build:ubsan --action_env UBSAN_OPTIONS=halt_on_error=1:print_stacktrace=1
 
+build:ci --keep_going
+
+# Generic remote cache
+build:ci --remote_download_toplevel
+build:ci --remote_timeout=3600
+build:ci --remote_upload_local_results
+
+# Generic remote build execution
+build:rbe --host_platform=//platforms:x86_64_linux_remote
+build:rbe --extra_execution_platforms=//platforms:x86_64_linux_remote
+build:rbe --cpu k8
+build:rbe --crosstool_top=@gcc_toolchain_x86_64//:_cc_toolchain
+build:rbe --strategy=remote
+build:rbe --genrule_strategy=remote
+build:rbe --spawn_strategy=remote
+build:rbe --jobs=32
+
+# BuildBuddy remote exec
+build:rbe --bes_results_url=https://app.buildbuddy.io/invocation/
+build:rbe --bes_backend=grpcs://remote.buildbuddy.io
+build:rbe --remote_timeout=3600
+build:rbe --remote_executor=grpcs://remote.buildbuddy.io
+
 try-import %workspace%/.bazelrc.user

.github/workflows/configurebb.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -o errexit -o nounset -o pipefail
+
+if [ "${BUILDBUDDY_API_KEY:-}" ]; then
+  touch "$HOME/.bazelrc"
+  chmod 0600 "$HOME/.bazelrc"
+  echo "build --remote_header=x-buildbuddy-api-key=$BUILDBUDDY_API_KEY" > "$HOME/.bazelrc"
+  echo "build --remote_cache=grpcs://remote.buildbuddy.io"
+fi

.github/workflows/default.yaml

@@ -1,17 +1,17 @@
 name: Default
 
 on:
+  # Triggers the workflow on push or pull request events but only for the main branch
   push:
     branches: [main]
   pull_request:
-    types: [labeled]
+    branches: [main]
 
   # Allows manually triggering this workflow from the Actions tab.
   workflow_dispatch:
 
 jobs:
   distros:
-    if: ${{ github.ref == 'refs/heads/main' }} or ${{ github.event.label.name == 'ci-test' }}
     strategy:
       matrix:
         os:
@@ -22,12 +22,12 @@ jobs:
       - uses: actions/checkout@v3
       - uses: bazelbuild/setup-bazelisk@v2
       - name: Test
-        run: ./.github/workflows/engflow.sh --config engflow //...
+        run: |
+          ./.github/workflows/configurebb.sh
+          bazel test --config ci //...
         env:
-          ENGFLOW_CLIENT_CRT: ${{ secrets.ENGFLOW_CLIENT_CRT }}
-          ENGFLOW_PRIVATE_KEY: ${{ secrets.ENGFLOW_PRIVATE_KEY }}
+          BUILDBUDDY_API_KEY: ${{ secrets.BUILDBUDDY_API_KEY }}
   compilation_modes:
-    if: ${{ github.ref == 'refs/heads/main' }} or ${{ github.event.label.name == 'ci-test' }}
     strategy:
       matrix:
         compilation_mode:
@@ -39,16 +39,12 @@ jobs:
       - uses: actions/checkout@v3
       - uses: bazelbuild/setup-bazelisk@v2
       - name: Test
-        run: |-
-          ./.github/workflows/engflow.sh \
-            --config engflow \
-            --compilation_mode ${{ matrix.compilation_mode }} \
-            //...
+        run: |
+          ./.github/workflows/configurebb.sh
+          bazel test --config ci --compilation_mode ${{ matrix.compilation_mode }} //...
         env:
-          ENGFLOW_CLIENT_CRT: ${{ secrets.ENGFLOW_CLIENT_CRT }}
-          ENGFLOW_PRIVATE_KEY: ${{ secrets.ENGFLOW_PRIVATE_KEY }}
+          BUILDBUDDY_API_KEY: ${{ secrets.BUILDBUDDY_API_KEY }}
   sanitizers:
-    if: ${{ github.ref == 'refs/heads/main' }} or ${{ github.event.label.name == 'ci-test' }}
     strategy:
       matrix:
         sanitizer:
@@ -61,16 +57,13 @@ jobs:
       - uses: actions/checkout@v3
       - uses: bazelbuild/setup-bazelisk@v2
       - name: Test ${{ matrix.sanitizer }}
-        run: |-
-          ./.github/workflows/engflow.sh \
-            --config engflow \
-            --config ${{ matrix.sanitizer }} \
-            //tests/sanitizers:${{ matrix.sanitizer }}_test
+        run: |
+          ./.github/workflows/configurebb.sh
+          bazel test --config ci --config ${{ matrix.sanitizer }} //tests/sanitizers:${{ matrix.sanitizer }}_test
         env:
-          ENGFLOW_CLIENT_CRT: ${{ secrets.ENGFLOW_CLIENT_CRT }}
-          ENGFLOW_PRIVATE_KEY: ${{ secrets.ENGFLOW_PRIVATE_KEY }}
+          BUILDBUDDY_API_KEY: ${{ secrets.BUILDBUDDY_API_KEY }}
   rbe:
-    if: ${{ github.ref == 'refs/heads/main' }} or ${{ github.event.label.name == 'ci-test' }}
+    if: (github.ref == 'refs/heads/main' || contains(github.head_ref, 'rbe')) && env.BUILDBUDDY_API_KEY != ''
     strategy:
       matrix:
         os:
@@ -81,12 +74,8 @@ jobs:
       - uses: actions/checkout@v3
       - uses: bazelbuild/setup-bazelisk@v2
       - name: Test with RBE
-        run: |-
-          ./.github/workflows/engflow.sh \
-            --config rbe \
-            --config engflow \
-            --config engflow_rbe \
-            //...
+        run: |
+          ./.github/workflows/configurebb.sh
+          bazel test --config ci --config rbe //...
         env:
-          ENGFLOW_CLIENT_CRT: ${{ secrets.ENGFLOW_CLIENT_CRT }}
-          ENGFLOW_PRIVATE_KEY: ${{ secrets.ENGFLOW_PRIVATE_KEY }}
+          BUILDBUDDY_API_KEY: ${{ secrets.BUILDBUDDY_API_KEY }}