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