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Get latest valid checkpoint

Source: R/checkpoint.R
get_latest_valid_checkpoint.Rd

Scans backwards from the latest checkpoint to find the most recent checkpoint with valid checksums. Used for corruption recovery.

Usage

get_latest_valid_checkpoint(result_path, config_fingerprint = NULL)

Arguments

result_path

Character string giving the base path for results.

config_fingerprint

Optional character string. If provided, also validates that the checkpoint's fingerprint matches.

Value

A checkpoint list (from read_checkpoint()), or NULL if no valid checkpoint is found.

Details

This function implements the corruption recovery algorithm:

  1. Get list of all checkpoint IDs

  2. Start from the highest ID

  3. Try to read each checkpoint (validates checksums)

  4. If fingerprint is provided, also validate fingerprint

  5. Return first valid checkpoint found

  6. Return NULL if no valid checkpoint found

See also

read_checkpoint(), list_checkpoints()

Examples

if (FALSE) { # \dontrun{
# Find latest valid checkpoint (any fingerprint)
checkpoint <- get_latest_valid_checkpoint("/path/to/results")

# Find latest valid checkpoint with matching fingerprint
checkpoint <- get_latest_valid_checkpoint(
  "/path/to/results",
  config_fingerprint = expected_fingerprint
)
} # }