186 lines
7.2 KiB
Python
186 lines
7.2 KiB
Python
"""
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Flask CLI commands for LIM backup and restore.
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flask backup create [--label nightly] [--keep 5] [--no-sqlite-file]
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flask backup list
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flask backup verify ARCHIVE
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flask backup inspect ARCHIVE
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flask backup restore ARCHIVE [--mode fresh|merge] [--force]
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[--overwrite-files] [--skip-files]
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`restore` is the path to use on a fresh Docker instance: no login required,
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and it works before any admin user exists.
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Created by: Jess Rogerson (yelling commands at Claude.AI)
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"""
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import json
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import os
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import click
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from flask.cli import AppGroup
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from app.services import backup_service as bsvc
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backup_cli = AppGroup('backup', help='Backup, verify and restore LIM data.')
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def _resolve(archive):
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"""Accept a bare filename in the backup folder or any path."""
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if os.path.isfile(archive):
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return os.path.abspath(archive)
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candidate = os.path.join(bsvc.backup_folder(), os.path.basename(archive))
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if os.path.isfile(candidate):
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return candidate
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raise click.ClickException(f'Archive not found: {archive}')
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@backup_cli.command('create')
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@click.option('--label', default=None, help='Short suffix for the filename.')
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@click.option('--keep', default=None, type=int,
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help='Keep only this many archives afterwards.')
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@click.option('--no-sqlite-file', is_flag=True,
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help='Omit the raw SQLite snapshot (JSON dump only).')
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def create_command(label, keep, no_sqlite_file):
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"""Create a backup archive."""
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bar_state = {'last': -1}
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def on_progress(stage, done, total, note):
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if total and done != bar_state['last']:
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bar_state['last'] = done
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pct = int(done / total * 100)
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click.echo(f'\r [{pct:3d}%] {stage}: {note[:60]:<60}', nl=False)
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click.echo('Creating backup...')
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result = bsvc.create_backup(label=label, created_by='cli',
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progress=on_progress,
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include_sqlite_file=not no_sqlite_file)
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click.echo('')
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manifest = result['manifest']
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click.echo(f" Archive : {result['filename']} ({result['size_human']})")
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click.echo(f" Path : {result['path']}")
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click.echo(f" Rows : " + ', '.join(
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f'{v} {k}' for k, v in manifest['counts'].items()))
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click.echo(f" Uploads : {manifest['uploads']['file_count']} files, "
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f"{manifest['uploads']['total_human']}")
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integrity = manifest['integrity']
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if integrity['missing_count']:
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click.secho(f" WARNING : {integrity['missing_count']} file(s) are "
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f"referenced in the database but missing on disk.",
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fg='yellow')
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for name in integrity['missing_files'][:10]:
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click.echo(f' - {name}')
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if integrity['orphaned_count']:
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click.echo(f" Note : {integrity['orphaned_count']} file(s) on disk "
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f"are not referenced by any record (backed up anyway).")
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if keep:
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pruned = bsvc.prune_backups(keep)
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if pruned:
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click.echo(f" Pruned : {', '.join(pruned)}")
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click.secho('Backup complete.', fg='green')
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@backup_cli.command('list')
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def list_command():
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"""List archives in the backup folder."""
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backups = bsvc.list_backups()
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if not backups:
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click.echo(f'No backups in {bsvc.backup_folder()}')
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return
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click.echo(f'Backups in {bsvc.backup_folder()}:')
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for entry in backups:
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manifest = entry['manifest'] or {}
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counts = manifest.get('counts', {})
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detail = ', '.join(f'{v} {k}' for k, v in counts.items()) or 'unreadable'
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flag = '' if entry['valid'] else ' [NOT A LIM BACKUP]'
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click.echo(f" {entry['modified']:%Y-%m-%d %H:%M} "
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f"{entry['size_human']:>10} {entry['filename']}{flag}")
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click.echo(f" {detail}")
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@backup_cli.command('inspect')
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@click.argument('archive')
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def inspect_command(archive):
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"""Print an archive's manifest."""
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path = _resolve(archive)
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click.echo(json.dumps(bsvc.read_manifest(path), indent=2))
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@backup_cli.command('verify')
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@click.argument('archive')
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def verify_command(archive):
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"""Recompute every checksum in an archive."""
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path = _resolve(archive)
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click.echo(f'Verifying {os.path.basename(path)}...')
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report = bsvc.verify_backup(path)
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click.echo(f" Entries checked : {report['checked']}")
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for name in report['failed']:
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click.secho(f' CHECKSUM FAIL : {name}', fg='red')
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for name in report['missing']:
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click.secho(f' MISSING ENTRY : {name}', fg='red')
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for error in report['errors']:
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click.secho(f' ERROR : {error}', fg='red')
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if report['ok']:
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click.secho('Archive is intact.', fg='green')
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else:
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raise click.ClickException('Archive failed verification.')
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@backup_cli.command('restore')
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@click.argument('archive')
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@click.option('--mode', type=click.Choice(['fresh', 'merge']), default='fresh',
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help='fresh preserves IDs into an empty DB; merge keeps existing data.')
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@click.option('--force', is_flag=True,
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help='In fresh mode, wipe existing rows first.')
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@click.option('--overwrite-files', is_flag=True,
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help='Overwrite upload files that already exist.')
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@click.option('--skip-files', is_flag=True,
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help='Restore database rows only.')
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@click.option('--yes', is_flag=True, help='Skip the confirmation prompt.')
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def restore_command(archive, mode, force, overwrite_files, skip_files, yes):
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"""Restore an archive into this instance."""
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path = _resolve(archive)
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manifest = bsvc.read_manifest(path)
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click.echo(f"Archive : {os.path.basename(path)}")
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click.echo(f"Created : {manifest.get('created_at')} on "
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f"{manifest.get('source', {}).get('hostname')}")
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click.echo(f"Rows : " + ', '.join(
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f'{v} {k}' for k, v in manifest.get('counts', {}).items()))
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click.echo(f"Uploads : {manifest.get('uploads', {}).get('file_count')} files, "
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f"{manifest.get('uploads', {}).get('total_human')}")
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click.echo(f"Mode : {mode}"
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+ (' (WIPES EXISTING ROWS)' if mode == 'fresh' and force else ''))
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if not yes and not click.confirm('Proceed with restore?', default=False):
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click.echo('Cancelled.')
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return
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def on_progress(stage, done, total, note):
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if total:
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click.echo(f'\r {stage}: {done}/{total} {note[:50]:<50}', nl=False)
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summary = bsvc.restore_backup(path, mode=mode, force=force,
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overwrite_files=overwrite_files,
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skip_files=skip_files, progress=on_progress)
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click.echo('')
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click.echo(' Inserted : ' + ', '.join(
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f'{v} {k}' for k, v in summary['inserted'].items()))
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if any(summary['skipped'].values()):
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click.echo(' Skipped : ' + ', '.join(
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f'{v} {k}' for k, v in summary['skipped'].items() if v))
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click.echo(f" Files : {summary['files_written']} written "
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f"({summary['files_bytes_human']}), "
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f"{summary['files_skipped']} already present")
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for warning in summary['warnings']:
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click.secho(f' Note : {warning}', fg='yellow')
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click.secho('Restore complete.', fg='green')
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def register_cli(app):
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app.cli.add_command(backup_cli)
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