66b8a62101
This causes 'nix' to print build log output to stderr rather than showing the last log line in the progress bar. Log lines are prefixed by the name of the derivation (minus the version string), e.g. binutils> make[1]: Leaving directory '/build/binutils-2.31.1' binutils-wrapper> unpacking sources binutils-wrapper> patching sources ... binutils-wrapper> Using dynamic linker: '/nix/store/kr51dlsj9v5cr4n8700jliyz8v5b2q7q-bootstrap-stage0-glibc/lib/ld-linux-x86-64.so.2' bootstrap-stage2-gcc-wrapper> unpacking sources ... linux-headers> unpacking sources linux-headers> unpacking source archive /nix/store/8javli69jhj3bkql2c35gsj5vl91p382-linux-4.19.16.tar.xz
122 lines
3.1 KiB
C++
122 lines
3.1 KiB
C++
#include <algorithm>
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#include "command.hh"
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#include "common-args.hh"
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#include "eval.hh"
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#include "globals.hh"
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#include "legacy.hh"
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#include "shared.hh"
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#include "store-api.hh"
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#include "progress-bar.hh"
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#include "finally.hh"
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extern std::string chrootHelperName;
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void chrootHelper(int argc, char * * argv);
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namespace nix {
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std::string programPath;
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struct NixArgs : virtual MultiCommand, virtual MixCommonArgs
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{
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bool printBuildLogs = false;
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NixArgs() : MultiCommand(*RegisterCommand::commands), MixCommonArgs("nix")
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{
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mkFlag()
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.longName("help")
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.description("show usage information")
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.handler([&]() { showHelpAndExit(); });
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mkFlag()
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.longName("help-config")
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.description("show configuration options")
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.handler([&]() {
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std::cout << "The following configuration options are available:\n\n";
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Table2 tbl;
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std::map<std::string, Config::SettingInfo> settings;
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globalConfig.getSettings(settings);
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for (const auto & s : settings)
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tbl.emplace_back(s.first, s.second.description);
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printTable(std::cout, tbl);
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throw Exit();
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});
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mkFlag()
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.longName("print-build-logs")
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.description("print full build logs on stderr")
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.set(&printBuildLogs, true);
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mkFlag()
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.longName("version")
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.description("show version information")
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.handler([&]() { printVersion(programName); });
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}
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void printFlags(std::ostream & out) override
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{
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Args::printFlags(out);
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std::cout <<
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"\n"
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"In addition, most configuration settings can be overriden using '--<name> <value>'.\n"
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"Boolean settings can be overriden using '--<name>' or '--no-<name>'. See 'nix\n"
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"--help-config' for a list of configuration settings.\n";
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}
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void showHelpAndExit()
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{
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printHelp(programName, std::cout);
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std::cout << "\nNote: this program is EXPERIMENTAL and subject to change.\n";
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throw Exit();
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}
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};
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void mainWrapped(int argc, char * * argv)
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{
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/* The chroot helper needs to be run before any threads have been
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started. */
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if (argc > 0 && argv[0] == chrootHelperName) {
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chrootHelper(argc, argv);
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return;
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}
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initNix();
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initGC();
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programPath = argv[0];
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string programName = baseNameOf(programPath);
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{
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auto legacy = (*RegisterLegacyCommand::commands)[programName];
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if (legacy) return legacy(argc, argv);
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}
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verbosity = lvlError;
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settings.verboseBuild = false;
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NixArgs args;
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args.parseCmdline(argvToStrings(argc, argv));
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initPlugins();
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if (!args.command) args.showHelpAndExit();
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Finally f([]() { stopProgressBar(); });
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startProgressBar(args.printBuildLogs);
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args.command->prepare();
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args.command->run();
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}
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}
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int main(int argc, char * * argv)
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{
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return nix::handleExceptions(argv[0], [&]() {
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nix::mainWrapped(argc, argv);
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});
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}
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