From 6059cc8b79aaede1716b93ee82e1d88ad3b07f01 Mon Sep 17 00:00:00 2001
From: David Vo <auscompgeek@users.noreply.github.com>
Date: Sun, 23 Nov 2025 03:36:17 +1100
Subject: [PATCH] [ci] Build only publish artifacts in Bazel cross-compile jobs
 (#8416)

#8363 split all the cross-compilation into separate jobs, however these
jobs are still also building the world (including the tests) targeting
the host.

Since `//:publish` and its dependencies are transitioned to target the
desired platforms for each artifact, `bazel build //:publish` in the CI
jobs that aren't running tests to only build what we actually care about
in these jobs.

This saves around 1 to 1.5 minutes for each cross-compile job with 100%
cache hit rates.
---
 .github/workflows/bazel.yml | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/bazel.yml b/.github/workflows/bazel.yml
index 14102509f6..50f0640626 100644
--- a/.github/workflows/bazel.yml
+++ b/.github/workflows/bazel.yml
@@ -54,10 +54,16 @@ jobs:
 
       - name: bazel ${{ matrix.action }}
         run: |
-          if [[ "${{ matrix.os }}" == "windows-2022" ]]; then
-            bazel --output_user_root=C:\\bazelroot ${{ matrix.action }} ... --config=ci -c opt --repo_env=WPI_PUBLISH_CLASSIFIER_FILTER='${{ matrix.classifier }}'
+          ACTION='${{ matrix.action }}'
+          if [[ "${ACTION}" == "build" ]]; then
+            TARGETS=:publish
           else
-            bazel ${{ matrix.action }} ... --config=ci -c opt --repo_env=WPI_PUBLISH_CLASSIFIER_FILTER='${{ matrix.classifier }}'
+            TARGETS=...
+          fi
+          if [[ "${{ matrix.os }}" == "windows-2022" ]]; then
+            bazel --output_user_root=C:\\bazelroot ${ACTION} ${TARGETS} --config=ci -c opt --repo_env=WPI_PUBLISH_CLASSIFIER_FILTER='${{ matrix.classifier }}'
+          else
+            bazel ${ACTION} ${TARGETS} --config=ci -c opt --repo_env=WPI_PUBLISH_CLASSIFIER_FILTER='${{ matrix.classifier }}'
           fi
         shell: bash