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#include "command.hh"
#include "serve-protocol.hh"
#include "shared.hh"
#include "store-api.hh"
#include "worker-protocol.hh"
using namespace nix;
std::string formatProtocol(unsigned int proto)
{
if (proto) {
auto major = GET_PROTOCOL_MAJOR(proto) >> 8;
auto minor = GET_PROTOCOL_MINOR(proto);
return (format("%1%.%2%") % major % minor).str();
}
return "unknown";
}
struct CmdDoctor : StoreCommand
{
bool success = true;
std::string name() override
{
return "doctor";
}
std::string description() override
{
return "check your system for potential problems";
}
void run(ref<Store> store) override
{
std::cout << "Store uri: " << store->getUri() << std::endl;
std::cout << std::endl;
auto type = getStoreType();
if (type < tOther) {
success &= checkNixInPath();
success &= checkProfileRoots(store);
}
success &= checkStoreProtocol(store->getProtocol());
if (!success)
throw Exit(2);
}
bool checkNixInPath()
{
PathSet dirs;
for (auto & dir : tokenizeString<Strings>(getEnv("PATH"), ":"))
if (pathExists(dir + "/nix-env"))
dirs.insert(dirOf(canonPath(dir + "/nix-env", true)));
if (dirs.size() != 1) {
std::cout << "Warning: multiple versions of nix found in PATH." << std::endl;
std::cout << std::endl;
for (auto & dir : dirs)
std::cout << " " << dir << std::endl;
std::cout << std::endl;
return false;
}
return true;
}
bool checkProfileRoots(ref<Store> store)
{
PathSet dirs;
for (auto & dir : tokenizeString<Strings>(getEnv("PATH"), ":")) {
Path profileDir = dirOf(dir);
try {
Path userEnv = canonPath(profileDir, true);
if (store->isStorePath(userEnv) && hasSuffix(userEnv, "user-environment")) {
while (profileDir.find("/profiles/") == std::string::npos && isLink(profileDir))
profileDir = absPath(readLink(profileDir), dirOf(profileDir));
if (profileDir.find("/profiles/") == std::string::npos)
dirs.insert(dir);
}
} catch (SysError &) {}
}
if (!dirs.empty()) {
std::cout << "Warning: found profiles outside of " << settings.nixStateDir << "/profiles." << std::endl;
std::cout << "The generation this profile points to might not have a gcroot and could be" << std::endl;
std::cout << "garbage collected, resulting in broken symlinks." << std::endl;
std::cout << std::endl;
for (auto & dir : dirs)
std::cout << " " << dir << std::endl;
std::cout << std::endl;
return false;
}
return true;
}
bool checkStoreProtocol(unsigned int storeProto)
{
unsigned int clientProto = GET_PROTOCOL_MAJOR(SERVE_PROTOCOL_VERSION) == GET_PROTOCOL_MAJOR(storeProto)
? SERVE_PROTOCOL_VERSION
: PROTOCOL_VERSION;
if (clientProto != storeProto) {
std::cout << "Warning: protocol version of this client does not match the store." << std::endl;
std::cout << "While this is not necessarily a problem it's recommended to keep the client in" << std::endl;
std::cout << "sync with the daemon." << std::endl;
std::cout << std::endl;
std::cout << "Client protocol: " << formatProtocol(clientProto) << std::endl;
std::cout << "Store protocol: " << formatProtocol(storeProto) << std::endl;
std::cout << std::endl;
return false;
}
return true;
}
};
static RegisterCommand r1(make_ref<CmdDoctor>());
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