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Add 'nix store gc' command
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43
src/nix/store-gc.cc
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43
src/nix/store-gc.cc
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#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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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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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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store->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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21
src/nix/store-gc.md
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src/nix/store-gc.md
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R""(
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# Examples
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* Delete unreachable paths in the Nix store:
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```console
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# nix store gc
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```
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* Delete up to 1 gigabyte of garbage:
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```console
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# nix store gc --max 1G
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```
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# Description
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This command deletes unreachable paths in the Nix store.
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)""
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@ -276,18 +276,18 @@ git -C $flake3Dir commit -m 'Add lockfile'
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# Test whether registry caching works.
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nix registry list --flake-registry file://$registry | grep -q flake3
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mv $registry $registry.tmp
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nix-store --gc
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nix store gc
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nix registry list --flake-registry file://$registry --refresh | grep -q flake3
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mv $registry.tmp $registry
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# Test whether flakes are registered as GC roots for offline use.
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# FIXME: use tarballs rather than git.
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rm -rf $TEST_HOME/.cache
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nix-store --gc # get rid of copies in the store to ensure they get fetched to our git cache
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nix store gc # get rid of copies in the store to ensure they get fetched to our git cache
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_NIX_FORCE_HTTP=1 nix build -o $TEST_ROOT/result git+file://$flake2Dir#bar
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mv $flake1Dir $flake1Dir.tmp
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mv $flake2Dir $flake2Dir.tmp
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nix-store --gc
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nix store gc
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_NIX_FORCE_HTTP=1 nix build -o $TEST_ROOT/result git+file://$flake2Dir#bar
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_NIX_FORCE_HTTP=1 nix build -o $TEST_ROOT/result git+file://$flake2Dir#bar --refresh
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mv $flake1Dir.tmp $flake1Dir
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