Add the TF sync workflow for Claude

.claude/daily_sync.sh

@@ -0,0 +1,109 @@
+#!/usr/bin/env bash
+# ==============================================================================
+# Copyright 2026 The TensorFlow Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# =============================================================================
+# Daily upstream sync for ROCm/tensorflow-upstream
+#
+# Runs the full /sync skill via Claude Code CLI.
+# Assumes it is running inside a Docker container with:
+#   - Claude Code installed and ANTHROPIC_API_KEY set
+#   - ROCm tools, bazel, python3, etc. available
+#   - The repo mounted/available at REPO_DIR
+#
+# Cron entry (add with `crontab -e`):
+#   0 5 * * * /workspace/.claude/daily_sync.sh >> /var/log/tf_daily_sync.log 2>&1
+# =============================================================================
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_DIR="${REPO_DIR:-$(dirname "$SCRIPT_DIR")}"
+DATE_LABEL=$(date -u +%y%m%d)
+LOG_DIR="$REPO_DIR/logs"
+mkdir -p "$LOG_DIR"
+LOG_FILE="$LOG_DIR/sync_${DATE_LABEL}.log"
+
+cleanup() {
+    echo ""
+    echo "=== Sync interrupted — $(date -u '+%Y-%m-%d %H:%M:%S UTC') ==="
+    exit 130
+}
+trap cleanup INT TERM
+
+exec > >(tee -a "$LOG_FILE") 2>&1
+
+echo "=== TF ROCm Daily Sync — $(date -u '+%Y-%m-%d %H:%M:%S UTC') ==="
+
+cd "$REPO_DIR"
+
+# Ensure on develop-upstream and up to date
+CURRENT_BRANCH=$(git branch --show-current)
+if [[ "$CURRENT_BRANCH" != "develop-upstream" ]]; then
+    echo "Switching to develop-upstream (was on '$CURRENT_BRANCH')..."
+    git checkout develop-upstream
+fi
+git pull --ff-only origin develop-upstream
+
+# Skip if today's sync branch already exists
+SYNC_BRANCH="develop-upstream-sync-${DATE_LABEL}"
+if git rev-parse --verify "$SYNC_BRANCH" >/dev/null 2>&1 || \
+   git ls-remote --heads origin "$SYNC_BRANCH" 2>/dev/null | grep -q "$SYNC_BRANCH"; then
+    echo "Sync branch '$SYNC_BRANCH' already exists. Skipping."
+    exit 0
+fi
+
+# Run the full sync.
+# - stream-json is captured to JSONL_LOG via tee (full detail for post-mortem)
+# - jq filter converts it to human-readable lines for the main LOG_FILE
+JSONL_LOG="$LOG_DIR/sync_${DATE_LABEL}.jsonl"
+STDERR_LOG="$LOG_DIR/sync_${DATE_LABEL}.stderr"
+echo "Starting /sync $DATE_LABEL ..."
+echo "Full event log: $JSONL_LOG"
+set +e  # allow pipeline to fail without exiting
+stdbuf -oL claude -p "/sync $DATE_LABEL" \
+    --dangerously-skip-permissions \
+    --model opus \
+    --verbose \
+    --output-format stream-json 2>"$STDERR_LOG" | \
+stdbuf -oL tee "$JSONL_LOG" | \
+jq --unbuffered -rj '
+  if .type == "assistant" then
+    (.message.content[] |
+      if .type == "text" then .text + "\n"
+      elif .type == "tool_use" then "[tool] " + .name + ": " + (.input | tostring | .[0:300]) + "\n"
+      else empty end)
+  elif .type == "result" then
+    "[done] " + .subtype + " cost=$" + (.cost_usd | tostring) + "\n"
+  else empty end
+' 2>/dev/null
+SYNC_EXIT=${PIPESTATUS[0]}
+set -e
+
+echo ""
+if [[ $SYNC_EXIT -ne 0 ]]; then
+    echo "claude exited with code $SYNC_EXIT"
+    [[ -s "$STDERR_LOG" ]] && echo "stderr:" && cat "$STDERR_LOG"
+fi
+echo "=== Sync finished — $(date -u '+%Y-%m-%d %H:%M:%S UTC') ==="
+
+# Report result
+if git rev-parse --verify "$SYNC_BRANCH" >/dev/null 2>&1; then
+    COMMIT_COUNT=$(git rev-list --count "develop-upstream..$SYNC_BRANCH")
+    echo "Branch '$SYNC_BRANCH' created with $COMMIT_COUNT commit(s)."
+    git log --oneline "develop-upstream..$SYNC_BRANCH"
+else
+    echo "WARNING: Sync branch '$SYNC_BRANCH' was not created. Check the log."
+    exit 1
+fi