add dry-run,

[Slach]

fix #1012, store NamedCollections size properly in backup metadata

[coveralls]

Coverage Report for CI Build 32838718801

Coverage increased (+0.2%) to 69.312%

Details

• Coverage increased (+0.2%) from the base build.
• Patch coverage: 136 uncovered changes across 11 files (513 of 649 lines covered, 79.04%).
• 22 coverage regressions across 5 files.

Uncovered Changes

Top 10 Files by Coverage Impact	Changed	Covered	%
pkg/backup/dry_run_download.go	103	68	66.02%
pkg/backup/dry_run_restore.go	83	49	59.04%
pkg/backup/dry_run_create.go	68	52	76.47%
pkg/backup/dry_run_upload.go	34	21	61.76%
pkg/server/server.go	128	118	92.19%
pkg/backup/dry_run.go	51	42	82.35%
pkg/backup/restore_remote.go	16	11	68.75%
pkg/backup/upload.go	44	39	88.64%
pkg/backup/delete.go	35	31	88.57%
pkg/backup/download.go	37	34	91.89%
Total (16 files)	649	513	79.04%

Coverage Regressions

22 previously-covered lines in 5 files lost coverage.

File	Lines Losing Coverage	Coverage
pkg/storage/general.go	12	69.07%
pkg/clickhouse/clickhouse.go	4	81.09%
pkg/backup/delete.go	3	71.54%
pkg/backup/watch_schedule.go	2	77.73%
pkg/storage/gcs.go	1	55.65%

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Coverage Stats

Relevant Lines:	25961
Covered Lines:	17994
Line Coverage:	69.31%
Coverage Strength:	44295.81 hits per line

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💛 - Coveralls