add rebase script

rebase.sh

@@ -0,0 +1,20 @@
+set -eu
+git branch -D cyy || true
+git push -d origin cyy || true
+
+# branches="build_system_fix fix_pybind fix_leak miscellaneous_fixes ubsan fix_performance msvc_ssize use_dynamic_cast move make_unique dropout_seed cxx20 reference detailed_error"
+branches="build_system_fix fix_pybind fix_leak miscellaneous_fixes ubsan fix_performance msvc_ssize use_dynamic_cast move dropout_seed cxx20 detailed_error"
+for branch in $branches; do
+  echo "rebase ${branch}"
+  git checkout ${branch}
+  git rebase up/master
+  git push --force
+  echo "end rebase ${branch}"
+done
+git checkout -b cyy
+for branch in $branches; do
+  echo "rebase ${branch}"
+  git rebase ${branch}
+  echo "end rebase ${branch}"
+done
+git push --set-upstream origin cyy