Finish copyClosure

Dependencies

• [2] 5AIYUMTB Basic remote building

Change contents

• edit in src/hydra-queue-runner/build-remote.cc at line 64
  [2.1541]→[2.1541:1593](∅→∅)
  −

  − Paths sorted = topoSortPaths(*store, closure);
• replacement in src/hydra-queue-runner/build-remote.cc at line 72
  [2.1954]→[2.1954:1984](∅→∅)
  − writeStrings(sorted, to);
  [2.1954]

  [2.1984]
  + writeStrings(closure, to);
• replacement in src/hydra-queue-runner/build-remote.cc at line 79
  [2.2138]→[2.2138:2295](∅→∅)
  − PathSet missing;

  − std::set_difference(closure.begin(), closure.end(), present.begin(), present.end(),

  − std::inserter(missing, missing.end()));
  [2.2138]

  [2.2295]
  + if (present.size() == closure.size()) return;

  +

  + Paths sorted = topoSortPaths(*store, closure);

  +

  + Paths missing;

  + for (auto i = sorted.rbegin(); i != sorted.rend(); ++i)

  + if (present.find(*i) == present.end()) missing.push_back(*i);
• replacement in src/hydra-queue-runner/build-remote.cc at line 88
  [2.2374]→[2.2374:2407](∅→∅)
  − if (missing.empty()) return;
  [2.2374]

  [2.2407]
  +

  + writeInt(cmdImportPaths, to);

  + exportPaths(*store, missing, false, to);

  + to.flush();
• replacement in src/hydra-queue-runner/build-remote.cc at line 93
  [2.2408]→[2.2408:2439](∅→∅)
  − throw Error("NOT IMPL 1");
  [2.2408]

  [2.2439]
  + if (readInt(from) != 1)

  + throw Error("remote machine failed to import closure");