Monitor Snapshot Updates #3

	name: Monitor Snapshot Updates

	on:
	schedule:
	- cron: '0 * * * *' # 每小时运行一次
	workflow_dispatch:

	jobs:
	monitor:
	runs-on: ubuntu-latest

	steps:
	- name: Fetch current snapshot files
	run: \|
	URL="https://downloads.immortalwrt.org/snapshots/targets/x86/64/"
	curl -s $URL > $RUNNER_TEMP/current_snapshot.html

	- name: Compare with previous snapshot
	run: \|
	LAST_SNAPSHOT="$RUNNER_TEMP/last_snapshot.html"
	CURRENT_SNAPSHOT="$RUNNER_TEMP/current_snapshot.html"

	# 如果之前没有保存快照，初始化空文件
	if [ ! -f "$LAST_SNAPSHOT" ]; then
	echo "首次运行，创建初始快照文件。"
	touch "$LAST_SNAPSHOT"
	fi

	# 对比快照文件
	if ! cmp -s "$CURRENT_SNAPSHOT" "$LAST_SNAPSHOT"; then
	echo "检测到更新！"
	echo "::set-output name=updated::true"
	else
	echo "没有检测到更新。"
	echo "::set-output name=updated::false"
	fi

	- name: Save the latest snapshot
	if: steps.check_update.outputs.updated == 'true'
	run: \|
	mv $RUNNER_TEMP/current_snapshot.html $RUNNER_TEMP/last_snapshot.html

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