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https://github.com/privatevoid-net/nix-super.git
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e1de1fe0d8
I think this better captures the intent of what's going on: we either have an opaque store path, or a drv path with some outputs. Having this structure will also help us support CA derivations: we'll have to allow the outpath paths to be optional, so the structure we gain now makes up for the structure we loose then.
68 lines
1.8 KiB
C++
68 lines
1.8 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 "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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Examples examples() override
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{
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return {
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Example{
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"To get the build log of GNU Hello:",
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"nix log nixpkgs#hello"
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},
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Example{
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"To get the build log of a specific path:",
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"nix log /nix/store/lmngj4wcm9rkv3w4dfhzhcyij3195hiq-thunderbird-52.2.1"
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},
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Example{
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"To get a build log from a specific binary cache:",
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"nix log --store https://cache.nixos.org nixpkgs#hello"
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},
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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->toBuildable();
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RunPager pager;
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for (auto & sub : subs) {
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auto log = std::visit(overloaded {
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[&](BuildableOpaque bo) {
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return sub->getBuildLog(bo.path);
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},
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[&](BuildableFromDrv bfd) {
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return sub->getBuildLog(bfd.drvPath);
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},
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}, b);
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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(), sub->getUri());
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std::cout << *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 r1 = registerCommand<CmdLog>("log");
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