21 lines
670 B
Bash
21 lines
670 B
Bash
#!/usr/bin/env bash
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set -euo pipefail
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SOURCE_DIR="${MARKDOWN_SOURCE_DIR:-./backend/content/posts}"
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BACKUP_DIR="${BACKUP_DIR:-./backups/markdown}"
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RETENTION_DAYS="${RETENTION_DAYS:-30}"
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TIMESTAMP="$(date -u +%Y%m%dT%H%M%SZ)"
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FILE_PATH="${BACKUP_DIR}/markdown-${TIMESTAMP}.tar.gz"
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if [[ ! -d "${SOURCE_DIR}" ]]; then
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echo "Markdown source directory not found: ${SOURCE_DIR}" >&2
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exit 1
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fi
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mkdir -p "${BACKUP_DIR}"
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tar -czf "${FILE_PATH}" -C "${SOURCE_DIR}" .
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ln -sfn "$(basename "${FILE_PATH}")" "${BACKUP_DIR}/latest.tar.gz"
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find "${BACKUP_DIR}" -type f -name 'markdown-*.tar.gz' -mtime +"${RETENTION_DAYS}" -delete
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echo "Markdown backup written to ${FILE_PATH}"
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