forked from lix-project/lix
103 lines
3 KiB
C++
103 lines
3 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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addFlag({
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.longName = "from",
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.description = "URI of the source Nix store",
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.labels = {"store-uri"},
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.handler = {&srcUri},
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});
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addFlag({
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.longName = "to",
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.description = "URI of the destination Nix store",
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.labels = {"store-uri"},
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.handler = {&dstUri},
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});
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addFlag({
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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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.handler = {&checkSigs, NoCheckSigs},
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});
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addFlag({
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.longName = "substitute-on-destination",
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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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.handler = {&substitute, Substitute},
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});
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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 $(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 /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 /nix/store/a6cnl93nk1wxnq84brbbwr6hxw9gp2w9-blender-2.79-rc2"
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},
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#ifdef ENABLE_S3
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Example{
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"To copy Hello to an S3 binary cache:",
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"nix copy --to s3://my-bucket?region=eu-west-1 nixpkgs.hello"
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},
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Example{
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"To copy Hello to an S3-compatible binary cache:",
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"nix copy --to s3://my-bucket?region=eu-west-1&endpoint=example.com nixpkgs.hello"
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},
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#endif
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};
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}
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Category category() override { return catSecondary; }
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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, StorePaths 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, storePathsToSet(storePaths),
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NoRepair, checkSigs, substitute);
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}
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};
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static auto r1 = registerCommand<CmdCopy>("copy");
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