forked from lix-project/lix
91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
#include "command.hh"
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#include "shared.hh"
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#include "store-api.hh"
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#include "sync.hh"
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#include "thread-pool.hh"
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#include <atomic>
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using namespace nix;
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struct CmdCopy : StorePathsCommand
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{
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std::string srcUri, dstUri;
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CheckSigsFlag checkSigs = CheckSigs;
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SubstituteFlag substitute = NoSubstitute;
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CmdCopy()
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: StorePathsCommand(true)
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{
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mkFlag()
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.longName("from")
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.labels({"store-uri"})
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.description("URI of the source Nix store")
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.dest(&srcUri);
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mkFlag()
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.longName("to")
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.labels({"store-uri"})
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.description("URI of the destination Nix store")
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.dest(&dstUri);
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mkFlag()
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.longName("no-check-sigs")
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.description("do not require that paths are signed by trusted keys")
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.set(&checkSigs, NoCheckSigs);
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mkFlag()
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.longName("substitute")
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.shortName('s')
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.description("whether to try substitutes on the destination store (only supported by SSH)")
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.set(&substitute, Substitute);
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}
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std::string name() override
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{
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return "copy";
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}
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std::string description() override
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{
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return "copy paths between Nix stores";
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}
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Examples examples() override
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{
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return {
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Example{
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"To copy Firefox from the local store to a binary cache in file:///tmp/cache:",
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"nix copy --to file:///tmp/cache -r $(type -p firefox)"
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},
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Example{
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"To copy the entire current NixOS system closure to another machine via SSH:",
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"nix copy --to ssh://server -r /run/current-system"
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},
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Example{
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"To copy a closure from another machine via SSH:",
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"nix copy --from ssh://server -r /nix/store/a6cnl93nk1wxnq84brbbwr6hxw9gp2w9-blender-2.79-rc2"
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},
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};
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}
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ref<Store> createStore() override
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{
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return srcUri.empty() ? StoreCommand::createStore() : openStore(srcUri);
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}
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void run(ref<Store> srcStore, Paths storePaths) override
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{
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if (srcUri.empty() && dstUri.empty())
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throw UsageError("you must pass '--from' and/or '--to'");
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ref<Store> dstStore = dstUri.empty() ? openStore() : openStore(dstUri);
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copyPaths(srcStore, dstStore, PathSet(storePaths.begin(), storePaths.end()),
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NoRepair, checkSigs, substitute);
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}
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};
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static RegisterCommand r1(make_ref<CmdCopy>());
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