116 lines
2.3 KiB
Bash
116 lines
2.3 KiB
Bash
#!/usr/bin/env sh
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set -eu
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ROOT_DIR="$(CDPATH= cd -- "$(dirname "$0")/.." && pwd)"
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CALENDAR_DIR="$ROOT_DIR/calendar"
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INTERVAL_MINUTES=60
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RUN_ONCE=false
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print_usage() {
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cat <<'EOF'
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用法：
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sh scripts/refresh-kindle-backgrounds.sh [选项]
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作用：
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1. 构建 calendar Web 产物
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2. 生成主题背景图到 calendar/kindle-backgrounds/
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3. 默认每 60 分钟重跑一次；加 --once 只跑一轮
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选项：
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--interval-minutes <n> 自动生成间隔，默认 60 分钟
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--once 只生成一轮
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-h, --help 查看帮助
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示例：
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sh scripts/refresh-kindle-backgrounds.sh --once
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sh scripts/refresh-kindle-backgrounds.sh --interval-minutes 30
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EOF
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}
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log() {
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printf '[%s] %s\n' "$(date '+%Y-%m-%d %H:%M:%S')" "$1"
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}
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validate_positive_integer() {
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value=$1
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name=$2
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case "$value" in
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''|*[!0-9]*)
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echo "$name 必须是正整数：$value" >&2
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exit 1
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;;
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esac
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if [ "$value" -le 0 ]; then
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echo "$name 必须大于 0：$value" >&2
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exit 1
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fi
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}
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refresh_once() {
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log "开始生成 Kindle 背景图到 $CALENDAR_DIR/kindle-backgrounds"
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(
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cd "$CALENDAR_DIR"
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npm run export:themes
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)
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log "背景图生成完成"
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}
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sleep_until_next_run() {
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interval_seconds=$((INTERVAL_MINUTES * 60))
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now_epoch=$(date '+%s')
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next_epoch=$(( ((now_epoch / interval_seconds) + 1) * interval_seconds ))
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sleep_seconds=$((next_epoch - now_epoch))
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if [ "$sleep_seconds" -le 0 ]; then
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sleep_seconds=$interval_seconds
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fi
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log "等待 ${sleep_seconds} 秒后执行下一轮生成"
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sleep "$sleep_seconds"
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}
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while [ "$#" -gt 0 ]; do
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case "$1" in
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--interval-minutes)
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shift
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INTERVAL_MINUTES=${1:?"missing interval minutes"}
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;;
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--once)
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RUN_ONCE=true
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;;
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-h|--help)
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print_usage
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exit 0
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;;
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*)
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echo "未知参数: $1" >&2
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echo >&2
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print_usage >&2
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exit 1
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;;
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esac
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shift
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done
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validate_positive_integer "$INTERVAL_MINUTES" "interval-minutes"
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while true; do
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if refresh_once; then
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:
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else
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status=$?
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log "本轮背景图生成失败，退出码：$status"
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if [ "$RUN_ONCE" = true ]; then
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exit "$status"
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fi
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fi
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if [ "$RUN_ONCE" = true ]; then
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break
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fi
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sleep_until_next_run
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done
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