lix/src/nix/sigs.cc

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#include "command.hh"
#include "shared.hh"
#include "store-api.hh"
#include "thread-pool.hh"
#include <atomic>
using namespace nix;
struct CmdCopySigs : StorePathsCommand
{
Strings substituterUris;
CmdCopySigs()
{
mkFlag()
.longName("substituter")
.shortName('s')
.labels({"store-uri"})
.description("use signatures from specified store")
.arity(1)
.handler([&](std::vector<std::string> ss) { substituterUris.push_back(ss[0]); });
}
std::string description() override
{
return "copy path signatures from substituters (like binary caches)";
}
void run(ref<Store> store, Paths storePaths) override
{
if (substituterUris.empty())
throw UsageError("you must specify at least one substituter using '-s'");
// FIXME: factor out commonality with MixVerify.
std::vector<ref<Store>> substituters;
for (auto & s : substituterUris)
substituters.push_back(openStore(s));
ThreadPool pool;
std::string doneLabel = "done";
std::atomic<size_t> added{0};
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//logger->setExpected(doneLabel, storePaths.size());
auto doPath = [&](const Path & storePath) {
//Activity act(*logger, lvlInfo, format("getting signatures for '%s'") % storePath);
checkInterrupt();
auto info = store->queryPathInfo(storePath);
StringSet newSigs;
for (auto & store2 : substituters) {
try {
auto info2 = store2->queryPathInfo(storePath);
/* Don't import signatures that don't match this
binary. */
if (info->narHash != info2->narHash ||
info->narSize != info2->narSize ||
info->references != info2->references)
continue;
for (auto & sig : info2->sigs)
if (!info->sigs.count(sig))
newSigs.insert(sig);
} catch (InvalidPath &) {
}
}
if (!newSigs.empty()) {
store->addSignatures(storePath, newSigs);
added += newSigs.size();
}
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//logger->incProgress(doneLabel);
};
for (auto & storePath : storePaths)
pool.enqueue(std::bind(doPath, storePath));
pool.process();
printInfo(format("imported %d signatures") % added);
}
};
static auto r1 = registerCommand<CmdCopySigs>("copy-sigs");
struct CmdSignPaths : StorePathsCommand
{
Path secretKeyFile;
CmdSignPaths()
{
mkFlag()
.shortName('k')
.longName("key-file")
.label("file")
.description("file containing the secret signing key")
.dest(&secretKeyFile);
}
std::string description() override
{
return "sign the specified paths";
}
void run(ref<Store> store, Paths storePaths) override
{
if (secretKeyFile.empty())
throw UsageError("you must specify a secret key file using '-k'");
SecretKey secretKey(readFile(secretKeyFile));
size_t added{0};
for (auto & storePath : storePaths) {
auto info = store->queryPathInfo(storePath);
auto info2(*info);
info2.sigs.clear();
info2.sign(secretKey);
assert(!info2.sigs.empty());
if (!info->sigs.count(*info2.sigs.begin())) {
store->addSignatures(storePath, info2.sigs);
added++;
}
}
printInfo(format("added %d signatures") % added);
}
};
static auto r2 = registerCommand<CmdSignPaths>("sign-paths");