dsyoon
3c9d9283bd
Enable scheduled backups of ncue.net databases and git.ncue.net repository mirrors via .env-driven shell scripts. Co-authored-by: Cursor <cursoragent@cursor.com>
67 lines
1.8 KiB
Bash
Executable File
67 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# 백업 스크립트 공통 유틸
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log_ts() { date '+%Y-%m-%dT%H:%M:%S%z'; }
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# 오래된 YYYYMMDD 백업 디렉터리 삭제
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# 사용: prune_old_backups "$BACKUP_ROOT" "$RETENTION_DAYS"
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prune_old_backups() {
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local backup_root="$1"
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local retention_days="$2"
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local cutoff removed=0 base day entry
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[[ "$retention_days" =~ ^[0-9]+$ ]] || return 0
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[[ "$retention_days" -le 0 ]] && return 0
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if date -d "1 day ago" +%Y%m%d >/dev/null 2>&1; then
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cutoff=$(date -d "${retention_days} days ago" +%Y%m%d)
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else
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cutoff=$(date -v-"${retention_days}"d +%Y%m%d)
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fi
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shopt -s nullglob
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for entry in "$backup_root"/*; do
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[[ -d "$entry" ]] || continue
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base=$(basename "$entry")
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[[ "$base" == "latest" ]] && continue
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if [[ "$base" =~ ^([0-9]{8}) ]]; then
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day="${BASH_REMATCH[1]}"
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if [[ "$day" < "$cutoff" ]]; then
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rm -rf "$entry"
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removed=$((removed + 1))
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echo "[$(log_ts)] retention: removed $entry (backup date $day < cutoff $cutoff)"
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fi
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fi
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done
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shopt -u nullglob
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echo "[$(log_ts)] retention: pruned ${removed} dir(s); keeping backups from ${cutoff} onward (${retention_days} days)"
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}
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resolve_run_dir() {
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local component="$1"
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local stamp="${BACKUP_STAMP:-$(date +%Y%m%d)}"
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local root="${BACKUP_DIR:-$REPO_ROOT/backup}"
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if [[ -n "${BACKUP_RUN_DIR:-}" ]]; then
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RUN_DIR="$BACKUP_RUN_DIR/$component"
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else
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RUN_DIR="$root/$stamp/$component"
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fi
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mkdir -p "$RUN_DIR"
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}
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update_latest_link() {
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local component="$1"
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local root="${BACKUP_DIR:-$REPO_ROOT/backup}"
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local stamp="${BACKUP_STAMP:-$(date +%Y%m%d)}"
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local target
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if [[ -n "${BACKUP_RUN_DIR:-}" ]]; then
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target="$BACKUP_RUN_DIR/$component"
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else
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target="$root/$stamp/$component"
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fi
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ln -sfn "$target" "$root/latest/$component"
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}
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