[misc] add placeholder format.sh (#12206)

Signed-off-by: youkaichao <youkaichao@gmail.com>

format.sh

+#!/bin/bash
+
+echo "vLLM linting system has been moved from format.sh to pre-commit hook."
+echo "Please run 'pip install -r requirements-lint.txt' and 'pre-commit install' to install the pre-commit hook."
+echo "Then linters will run automatically before each commit."

tools/shellcheck.sh

@@ -19,4 +19,4 @@ if ! [ -x "$(command -v shellcheck)" ]; then
 fi
 
 # TODO - fix warnings in .buildkite/run-amd-test.sh
-find . -name "*.sh" -not -path "./.buildkite/run-amd-test.sh" -print0 | xargs -0 -I {} sh -c 'git check-ignore -q "{}" || shellcheck "{}"'
+find . -name "*.sh" ".git" -prune -not -path "./.buildkite/run-amd-test.sh" -print0 | xargs -0 -I {} sh -c 'git check-ignore -q "{}" || shellcheck -s bash "{}"'