forked from lix-project/lix
85c8be6286
This was useful for an experiment with building Nix as a single compilation unit. It's not very useful otherwise but also doesn't hurt...
68 lines
2.3 KiB
C++
Executable file
68 lines
2.3 KiB
C++
Executable file
#include "shared.hh"
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#include "store-api.hh"
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#include "../nix/legacy.hh"
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using namespace nix;
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static int main_nix_copy_closure(int argc, char ** argv)
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{
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{
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auto gzip = false;
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auto toMode = true;
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auto includeOutputs = false;
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auto dryRun = false;
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auto useSubstitutes = NoSubstitute;
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std::string sshHost;
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PathSet storePaths;
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parseCmdLine(argc, argv, [&](Strings::iterator & arg, const Strings::iterator & end) {
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if (*arg == "--help")
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showManPage("nix-copy-closure");
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else if (*arg == "--version")
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printVersion("nix-copy-closure");
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else if (*arg == "--gzip" || *arg == "--bzip2" || *arg == "--xz") {
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if (*arg != "--gzip")
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printMsg(lvlError, format("Warning: '%1%' is not implemented, falling back to gzip") % *arg);
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gzip = true;
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} else if (*arg == "--from")
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toMode = false;
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else if (*arg == "--to")
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toMode = true;
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else if (*arg == "--include-outputs")
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includeOutputs = true;
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else if (*arg == "--show-progress")
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printMsg(lvlError, "Warning: '--show-progress' is not implemented");
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else if (*arg == "--dry-run")
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dryRun = true;
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else if (*arg == "--use-substitutes" || *arg == "-s")
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useSubstitutes = Substitute;
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else if (sshHost.empty())
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sshHost = *arg;
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else
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storePaths.insert(*arg);
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return true;
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});
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initPlugins();
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if (sshHost.empty())
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throw UsageError("no host name specified");
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auto remoteUri = "ssh://" + sshHost + (gzip ? "?compress=true" : "");
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auto to = toMode ? openStore(remoteUri) : openStore();
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auto from = toMode ? openStore() : openStore(remoteUri);
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StorePathSet storePaths2;
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for (auto & path : storePaths)
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storePaths2.insert(from->followLinksToStorePath(path));
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StorePathSet closure;
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from->computeFSClosure(storePaths2, closure, false, includeOutputs);
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copyPaths(from, to, closure, NoRepair, NoCheckSigs, useSubstitutes);
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return 0;
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}
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}
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static RegisterLegacyCommand r_nix_copy_closure("nix-copy-closure", main_nix_copy_closure);
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