64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
#include "command.hh"
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#include "common-args.hh"
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#include "shared.hh"
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#include "store-api.hh"
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#include "log-store.hh"
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#include "progress-bar.hh"
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using namespace nix;
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struct CmdLog : InstallableCommand
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{
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std::string description() override
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{
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return "show the build log of the specified packages or paths, if available";
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}
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std::string doc() override
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{
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return
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#include "log.md"
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;
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}
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Category category() override { return catSecondary; }
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void run(ref<Store> store) override
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{
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settings.readOnlyMode = true;
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auto subs = getDefaultSubstituters();
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subs.push_front(store);
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auto b = installable->toDerivedPath();
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RunPager pager;
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for (auto & sub : subs) {
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auto * logSubP = dynamic_cast<LogStore *>(&*sub);
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if (!logSubP) {
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printInfo("Skipped '%s' which does not support retrieving build logs", sub->getUri());
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continue;
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}
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auto & logSub = *logSubP;
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auto log = std::visit(overloaded {
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[&](const DerivedPath::Opaque & bo) {
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return logSub.getBuildLog(bo.path);
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},
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[&](const DerivedPath::Built & bfd) {
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return logSub.getBuildLog(bfd.drvPath);
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},
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}, b.path.raw());
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if (!log) continue;
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stopProgressBar();
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printInfo("got build log for '%s' from '%s'", installable->what(), logSub.getUri());
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writeFull(STDOUT_FILENO, *log);
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return;
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}
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throw Error("build log of '%s' is not available", installable->what());
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}
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};
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static auto rCmdLog = registerCommand<CmdLog>("log");
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