[ci] automate pull request on updating Translator commit id (#1715)

Target to fix:
#1673

- Implementation is done.
- This PR creates PRs by a bot automatically, In order to trigger the
cid update in a regular base, at the end of the review, I will change
the trigger to
  ```yml
      workflow_dispatch:  # manually
      schedule:  # nightly
  ```

Here is an automate created PR:
#1742

.github/workflows/auto-update-translator-cid.yml

@@ -0,0 +1,121 @@
+
+name: Automate update Translator cid
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '5 23 * * *'
+
+env:
+  PR_BRANCH: bot/update_translator_cid
+
+jobs:
+  update-config:
+    runs-on:
+      - glados
+      - spr
+      - runner-0.0.18
+    defaults:
+      run:
+        shell: bash -noprofile --norc -eo pipefail -c "source /home/runner/intel/oneapi/setvars.sh > /dev/null; source {0}"
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      # search the opened PR that has branch "bot/update_translator_cid", no new PR as long as the target PR is open
+      - name: Search the opened PR that has branch ${{ env.PR_BRANCH }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.BOT_TOKEN }}
+        run: |
+          if gh pr list | grep "${PR_BRANCH}"; then
+            echo "Bot PR is still open"
+            echo "TARGET_PRID=$(gh pr list --search "head:${PR_BRANCH}" --json number --jq ".[].number")" >> $GITHUB_ENV
+          fi
+
+      # if $TARGET_PRID is null, target PR is meged or closed or never been raised. In that case search for the latest valid translator cid
+      - name: Load pip cache
+        if: ${{ env.TARGET_PRID == null }}
+        uses: ./.github/actions/load
+        env:
+          CACHE_NUMBER: 1
+        with:
+          path: $HOME/.cache/pip
+          key: pip-3.10-${{ hashFiles('python/pyproject.toml', 'python/setup.py') }}-${{ env.CACHE_NUMBER }}
+
+      - name: Install Python 3.10
+        if: ${{ env.TARGET_PRID == null }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+
+      - name: Setup PyTorch with IPEX
+        if: ${{ env.TARGET_PRID == null }}
+        uses: ./.github/actions/setup-pytorch
+        with:
+          repository: Stonepia/pytorch
+          ref: ""
+
+      - name: Setup IPEX
+        if: ${{ env.TARGET_PRID == null }}
+        uses: ./.github/actions/setup-ipex
+
+      - name: Install test dependencies
+        if: ${{ env.TARGET_PRID == null }}
+        run: |
+          pip install pytest pytest-xdist pytest-rerunfailures pytest-select pytest-timeout expecttest
+          pip install git+https://github.com/kwasd/[email protected]
+
+      - name: Get commit ID from Triton's spirv-llvm-translator.conf
+        if: ${{ env.TARGET_PRID == null }}
+        run: echo "CID_CURRENT=$(cat ./lib/Target/SPIRV/spirv-llvm-translator.conf)" >> $GITHUB_ENV
+
+      - name: Checkout SPIRV-LLVM-Translator
+        if: ${{ env.TARGET_PRID == null }}
+        uses: actions/checkout@v4
+        with:
+          repository: KhronosGroup/SPIRV-LLVM-Translator
+          ref: main
+          fetch-depth: 0
+          path: external/SPIRV-LLVM-Translator
+
+      - name: Get the latest commit ID from SPIRV-LLVM-Translator
+        if: ${{ env.TARGET_PRID == null }}
+        run: |
+          echo "CID_LATEST=$(git -C external/SPIRV-LLVM-Translator rev-parse HEAD)" >> $GITHUB_ENV
+
+      # the latest valid cid has been weitten to spirv-llvm-translator.conf
+      - name: Search the latest valid Translator cid
+        if: ${{ env.TARGET_PRID == null }}
+        run: |
+          env
+          ./scripts/check_update_tranlator_cid.sh $CID_LATEST $CID_CURRENT
+          if git status --porcelain ./lib/Target/SPIRV/spirv-llvm-translator.conf | grep '^ M'; then
+            echo "MODIFIED=true" >> $GITHUB_ENV
+            echo "spirv-llvm-translator.conf has been modified"
+          fi
+
+      # raise PR by bot
+      - name: Create PR if config is updated
+        if: ${{ env.TARGET_PRID == null && env.MODIFIED == 'true' }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.BOT_TOKEN }}
+        run: |
+          git config --global user.name 'github-actions[bot]'
+          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
+
+          if git show-ref --verify --quiet "refs/remotes/origin/${PR_BRANCH}"; then
+            echo "${PR_BRANCH} already exist, deleting..."
+            git push origin --delete "${PR_BRANCH}"
+          else
+            echo "${PR_BRANCH} not exist"
+          fi
+
+          git checkout llvm-target # make sure checkout a new branch that is based on llvm-target
+          git checkout -b ${PR_BRANCH}
+          git branch --show-current # bot/update_translator_cid
+          git status
+          git add ./lib/Target/SPIRV/spirv-llvm-translator.conf
+          git commit -m "Update spirv-llvm-translator.conf"
+          git push origin ${PR_BRANCH}
+          pr_url=$(gh pr create --title "[github-bot] Update spirv-llvm-translator.conf" --body "Automated PR to update translator commit id." --reviewer whitneywhtsang --head ${PR_BRANCH} --base llvm-target)

scripts/check_update_tranlator_cid.sh

@@ -23,6 +23,7 @@ COMMIT_IDS=$(git -C $TRITON_PROJ/external/SPIRV-LLVM-Translator log --format="%H
 
 # check every commit ids
 cd $TRITON_PROJ
+FOUND=false
 for cid in $COMMIT_IDS; do
     echo "$cid" > ./lib/Target/SPIRV/spirv-llvm-translator.conf
     if ! ./scripts/compile-triton.sh --clean; then
@@ -34,8 +35,13 @@ for cid in $COMMIT_IDS; do
     if ./scripts/test-triton.sh --skip-deps; then
         echo "Tests passed for translator commit $cid"
         echo "A newer commit found: $cid"
+        FOUND=true
         break
     else
         echo "Tests failed for translator commit $cid"
     fi
 done
+
+if [ "$FOUND" = false ]; then
+    git restore ./lib/Target/SPIRV/spirv-llvm-translator.conf
+fi