117 lines
3.2 KiB
C++
117 lines
3.2 KiB
C++
#include "command.hh"
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#include "common-args.hh"
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#include "store-api.hh"
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#include "archive.hh"
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#include "posix-source-accessor.hh"
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using namespace nix;
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static FileIngestionMethod parseIngestionMethod(std::string_view input)
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{
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if (input == "flat") {
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return FileIngestionMethod::Flat;
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} else if (input == "nar") {
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return FileIngestionMethod::Recursive;
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} else {
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throw UsageError("Unknown hash mode '%s', expect `flat` or `nar`");
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}
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}
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struct CmdAddToStore : MixDryRun, StoreCommand
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{
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Path path;
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std::optional<std::string> namePart;
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ContentAddressMethod caMethod = FileIngestionMethod::Recursive;
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HashAlgorithm hashAlgo = HashAlgorithm::SHA256;
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CmdAddToStore()
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{
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// FIXME: completion
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expectArg("path", &path);
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addFlag({
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.longName = "name",
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.shortName = 'n',
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.description = "Override the name component of the store path. It defaults to the base name of *path*.",
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.labels = {"name"},
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.handler = {&namePart},
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});
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addFlag({
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.longName = "mode",
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.description = R"(
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How to compute the hash of the input.
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One of:
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- `nar` (the default): Serialises the input as an archive (following the [_Nix Archive Format_](https://edolstra.github.io/pubs/phd-thesis.pdf#page=101)) and passes that to the hash function.
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- `flat`: Assumes that the input is a single file and directly passes it to the hash function;
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)",
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.labels = {"hash-mode"},
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.handler = {[this](std::string s) {
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this->caMethod = parseIngestionMethod(s);
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}},
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});
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addFlag(Flag::mkHashAlgoFlag("hash-algo", &hashAlgo));
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}
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void run(ref<Store> store) override
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{
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if (!namePart) namePart = baseNameOf(path);
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PosixSourceAccessor accessor;
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auto path2 = CanonPath::fromCwd(path);
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auto storePath = dryRun
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? store->computeStorePath(
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*namePart, accessor, path2, caMethod, hashAlgo, {}).first
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: store->addToStoreSlow(
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*namePart, accessor, path2, caMethod, hashAlgo, {}).path;
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logger->cout("%s", store->printStorePath(storePath));
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}
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};
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struct CmdAdd : CmdAddToStore
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{
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std::string description() override
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{
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return "Add a file or directory to the Nix store";
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}
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std::string doc() override
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{
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return
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#include "add.md"
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;
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}
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};
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struct CmdAddFile : CmdAddToStore
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{
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CmdAddFile()
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{
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caMethod = FileIngestionMethod::Flat;
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}
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std::string description() override
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{
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return "Deprecated. Use [`nix store add --mode flat`](@docroot@/command-ref/new-cli/nix3-store-add.md) instead.";
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}
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};
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struct CmdAddPath : CmdAddToStore
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{
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std::string description() override
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{
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return "Deprecated alias to [`nix store add`](@docroot@/command-ref/new-cli/nix3-store-add.md).";
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}
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};
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static auto rCmdAddFile = registerCommand2<CmdAddFile>({"store", "add-file"});
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static auto rCmdAddPath = registerCommand2<CmdAddPath>({"store", "add-path"});
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static auto rCmdAdd = registerCommand2<CmdAdd>({"store", "add"});
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