#include "command.hh" #include "common-args.hh" #include "shared.hh" #include "store-api.hh" #include "progress-bar.hh" using namespace nix; struct CmdLog : InstallableCommand { CmdLog() { } std::string name() override { return "log"; } std::string description() override { return "show the build log of the specified packages or paths"; } void run(ref<Store> store) override { settings.readOnlyMode = true; auto subs = getDefaultSubstituters(); subs.push_front(store); auto b = installable->toBuildable(); for (auto & sub : subs) { auto log = b.drvPath != "" ? sub->getBuildLog(b.drvPath) : nullptr; for (auto & output : b.outputs) { if (log) break; log = sub->getBuildLog(output.second); } if (!log) continue; stopProgressBar(); printInfo("got build log for '%s' from '%s'", installable->what(), sub->getUri()); std::cout << *log; return; } throw Error("build log of '%s' is not available", installable->what()); } }; static RegisterCommand r1(make_ref<CmdLog>());