commit b98a32a01901c451abe94a778e274ffdacfcbcb0
author Geoffrey Martin-Noble <gcmn@google.com> Mon Jun 01 11:15:46 2020 -0700
committer Copybara-Service <copybara-worker@google.com> Mon Jun 01 11:17:31 2020 -0700
tree e582f705d255a4d603fc2b0148eff511dbcbdc03
parent 76ba061060c298d334073d9264489efe262b374f

Make submodule action only update TF

Reactivates the GitHub actions workflow to update submodule, but modifies it to not change the LLVM commit. The LLVM commit is now updated directly from the LLVM integration process in Google's source repository. However we still need to keep TF up to date and copy over the LLVM BUILD files.

Closes https://github.com/google/iree/pull/2077

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/2077 from GMNGeoffrey:submodule-update-workflow d1204c658d4bb31a65fecec0544a38b673b4121a
PiperOrigin-RevId: 314165834

.github/workflows/update_submodules.yml

diff --git a/.github/workflows/update_submodules.yml b/.github/workflows/update_submodules.yml
index 856814f..68fd9c9 100644
--- a/.github/workflows/update_submodules.yml
+++ b/.github/workflows/update_submodules.yml
@@ -12,16 +12,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Creates a PR to update TF & LLVM submodules when TF moves to a new LLVM commit.
+# Creates a PR to update the TF submodule to HEAD & copy the latest
+# version of the LLVM Bazel BUILD files from TF.
 
 name: Update Submodules
 
-# Turn this off for now, as we transition to automatically updating the LLVM SHA
-# from Google's source repository
-on: []
-#   schedule:
-#      # Every 6 hours at 0, 6, 12, 18 UTC (4, 10, 16, 22 PST)
-#      - cron: '0 */6 * * *'
+on:
+  schedule:
+    # Every 6 hours at 0, 6, 12, 18 UTC (4, 10, 16, 22 PST)
+    - cron: '0 */6 * * *'
 
 jobs:
   update:
@@ -34,14 +33,14 @@
       - name: Initializing submodules
         run: ./scripts/git/submodule_versions.py init
       - name: Updating submodules
-        run: ./scripts/git/update_tf_llvm_submodules.py --update_build_files=true
+        run: ./scripts/git/update_tf_llvm_submodules.py --llvm_commit=KEEP --update_build_files=true
       - name: Creating Pull Request
         uses: peter-evans/create-pull-request@v2
         with:
           # Personal token is required to trigger additional automation (e.g. presubmits).
           token: ${{ secrets.GITHUB_WRITE_ACCESS_TOKEN }}
-          commit-message: "Automatically update LLVM & TF submodules"
-          title: "Update LLVM & TF submodules"
+          commit-message: "Update TF submodule and LLVM BUILD files"
+          title: "Update TF submodule and LLVM BUILD files"
           body: "Automated submodule bump from .github/workflows/update_submodules.yml"
           committer: "Submodule Update Action <iree-github-actions-bot@google.com>"
           # TODO(gcmn): Figure out a way to assign this to someone dynamically.