1  // Copyright (c) 2023 The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #include <node/blockmanager_args.h>
 6  
 7  #include <common/args.h>
 8  #include <node/blockstorage.h>
 9  #include <tinyformat.h>
10  #include <util/result.h>
11  #include <util/translation.h>
12  #include <validation.h>
13  
14  #include <cstdint>
15  
16  namespace node {
17  util::Result<void> ApplyArgsManOptions(const ArgsManager& args, BlockManager::Options& opts)
18  {
19      // block pruning; get the amount of disk space (in MiB) to allot for block & undo files
20      int64_t nPruneArg{args.GetIntArg("-prune", opts.prune_target)};
21      if (nPruneArg < 0) {
22          return util::Error{_("Prune cannot be configured with a negative value.")};
23      }
24      uint64_t nPruneTarget{uint64_t(nPruneArg) * 1024 * 1024};
25      if (nPruneArg == 1) { // manual pruning: -prune=1
26          nPruneTarget = BlockManager::PRUNE_TARGET_MANUAL;
27      } else if (nPruneTarget) {
28          if (nPruneTarget < MIN_DISK_SPACE_FOR_BLOCK_FILES) {
29              return util::Error{strprintf(_("Prune configured below the minimum of %d MiB.  Please use a higher number."), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024)};
30          }
31      }
32      opts.prune_target = nPruneTarget;
33  
34      if (auto value{args.GetBoolArg("-fastprune")}) opts.fast_prune = *value;
35  
36      return {};
37  }
38  } // namespace node