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