80 lines
2.0 KiB
C++
80 lines
2.0 KiB
C++
#pragma once
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///@file
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#include "lix/libstore/build/request.capnp.h"
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#include "lix/libutil/rpc.hh"
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#include <boost/format.hpp>
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#include <capnp/message.h>
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#include <capnp/serialize.h>
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#include <cstring>
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#include <exception>
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#include <memory>
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#include <string>
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#include <string_view>
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#include <unistd.h>
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#include <vector>
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namespace nix {
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bool prepareChildSetup(nix::build::Request::Reader request);
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void finishChildSetup(nix::build::Request::Reader request);
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[[noreturn]]
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void execBuilder(nix::build::Request::Reader request);
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// silence the foreign exception lint for this helper
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class BaseException : public std::exception
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{};
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class SysError : public BaseException
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{
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private:
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std::shared_ptr<std::string> msg;
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public:
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explicit SysError(auto fmt, const auto &... args) : SysError(errno, fmt, args...) {}
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SysError(int error, auto fmt, const auto &... args)
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{
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const auto errstr = strerror(error);
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auto format = boost::format(fmt);
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((format % args), ...);
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msg = std::make_shared<std::string>(format.str() + ": " + errstr);
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}
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const char * what() const noexcept override
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{
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return msg->c_str();
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}
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};
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struct ExecRequest
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{
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std::string builder;
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std::vector<std::string> argsStorage, envsStorage;
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std::vector<char *> args, envs;
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ExecRequest(nix::build::Request::Reader request);
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};
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void writeFull(int fd, std::string_view data);
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extern bool printDebugLogs;
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inline void printDebugLog(auto fmt, const auto &... args)
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{
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auto format = boost::format(fmt);
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((format % args), ...);
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capnp::MallocMessageBuilder builder;
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auto log = builder.getRoot<build::SetupResponse>();
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RPC_FILL(log, setLogLine, format.str());
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capnp::writeMessageToFd(STDIN_FILENO, builder);
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}
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#define debug(msg, ...) \
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do { \
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if (::nix::printDebugLogs) { \
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printDebugLog(msg, __VA_ARGS__); \
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} \
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} while (0)
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}
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