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#include "command.hh"
#include "shared.hh"
#include "store-api.hh"
#include "sync.hh"
#include "thread-pool.hh"
#include <atomic>
using namespace nix;
struct CmdCopy : StorePathsCommand
{
std::string srcUri, dstUri;
CheckSigsFlag checkSigs = CheckSigs;
SubstituteFlag substitute = NoSubstitute;
CmdCopy()
: StorePathsCommand(true)
{
addFlag({
.longName = "from",
.description = "URI of the source Nix store",
.labels = {"store-uri"},
.handler = {&srcUri},
});
addFlag({
.longName = "to",
.description = "URI of the destination Nix store",
.labels = {"store-uri"},
.handler = {&dstUri},
});
addFlag({
.longName = "no-check-sigs",
.description = "do not require that paths are signed by trusted keys",
.handler = {&checkSigs, NoCheckSigs},
});
addFlag({
.longName = "substitute-on-destination",
.shortName = 's',
.description = "whether to try substitutes on the destination store (only supported by SSH)",
.handler = {&substitute, Substitute},
});
}
std::string description() override
{
return "copy paths between Nix stores";
}
Examples examples() override
{
return {
Example{
"To copy Firefox from the local store to a binary cache in file:///tmp/cache:",
"nix copy --to file:///tmp/cache $(type -p firefox)"
},
Example{
"To copy the entire current NixOS system closure to another machine via SSH:",
"nix copy --to ssh://server /run/current-system"
},
Example{
"To copy a closure from another machine via SSH:",
"nix copy --from ssh://server /nix/store/a6cnl93nk1wxnq84brbbwr6hxw9gp2w9-blender-2.79-rc2"
},
#ifdef ENABLE_S3
Example{
"To copy Hello to an S3 binary cache:",
"nix copy --to s3://my-bucket?region=eu-west-1 nixpkgs.hello"
},
Example{
"To copy Hello to an S3-compatible binary cache:",
"nix copy --to s3://my-bucket?region=eu-west-1&endpoint=example.com nixpkgs.hello"
},
#endif
};
}
Category category() override { return catSecondary; }
ref<Store> createStore() override
{
return srcUri.empty() ? StoreCommand::createStore() : openStore(srcUri);
}
void run(ref<Store> srcStore, StorePaths storePaths) override
{
if (srcUri.empty() && dstUri.empty())
throw UsageError("you must pass '--from' and/or '--to'");
ref<Store> dstStore = dstUri.empty() ? openStore() : openStore(dstUri);
copyPaths(srcStore, dstStore, StorePathSet(storePaths.begin(), storePaths.end()),
NoRepair, checkSigs, substitute);
}
};
static auto r1 = registerCommand<CmdCopy>("copy");
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