forked from lix-project/lix
6636202356
Starts progress on #5729. The idea is that we should not have these default methods throwing "unimplemented". This is a small step in that direction. I kept `addTempRoot` because it is a no-op, rather than failure. Also, as a practical matter, it is called all over the place, while doing other tasks, so the downcasting would be annoying. Maybe in the future I could move the "real" `addTempRoot` to `GcStore`, and the existing usecases use a `tryAddTempRoot` wrapper to downcast or do nothing, but I wasn't sure whether that was a good idea so with a bias to less churn I didn't do it yet.
47 lines
1.1 KiB
C++
47 lines
1.1 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 "gc-store.hh"
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using namespace nix;
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struct CmdStoreGC : StoreCommand, MixDryRun
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{
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GCOptions options;
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CmdStoreGC()
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{
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addFlag({
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.longName = "max",
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.description = "Stop after freeing *n* bytes of disk space.",
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.labels = {"n"},
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.handler = {&options.maxFreed}
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});
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}
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std::string description() override
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{
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return "perform garbage collection on a Nix store";
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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 "store-gc.md"
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;
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}
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void run(ref<Store> store) override
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{
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auto & gcStore = requireGcStore(*store);
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options.action = dryRun ? GCOptions::gcReturnDead : GCOptions::gcDeleteDead;
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GCResults results;
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PrintFreed freed(options.action == GCOptions::gcDeleteDead, results);
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gcStore.collectGarbage(options, results);
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}
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};
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static auto rCmdStoreGC = registerCommand2<CmdStoreGC>({"store", "gc"});
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