Tom Hubrecht
170f092ce2
There are currently 4 different ways to run garbage collection using lix: - `nix-collect-garbage` - `nix-store --gc` - `nix store gc` - (using the daemon directly) As they were written all at different times, their output varies (and is broken in some case). This unifies the display of informations in the following ways: - The list of paths in the results is always printed (in the nix3 cli it is hidden unless `-v` is passed) - The number of paths in the result set is always displayed - The size of deleted paths is only shown when actually deleting things (as it would have been 0B in any case) Fixes #905 Change-Id: I40d9ec7c6d76795f6c6dd30df196d1e855bdb9db
83 lines
2.3 KiB
Bash
83 lines
2.3 KiB
Bash
source common.sh
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clearStore
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createAndRootPaths() {
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drvPath=$(nix-instantiate dependencies.nix)
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outPath=$(nix-store -rvv "$drvPath")
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# Set a GC root.
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rm -f "$NIX_STATE_DIR"/gcroots/foo
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ln -sf $outPath "$NIX_STATE_DIR"/gcroots/foo
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}
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createAndRootPaths
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[ "$(nix-store -q --roots $outPath)" = "$NIX_STATE_DIR/gcroots/foo -> $outPath" ]
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nix-store --gc --print-roots | grep $outPath
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nix-store --gc --print-live | grep $outPath
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nix-store --gc --print-dead | grep $drvPath
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if nix-store --gc --print-dead | grep -E $outPath$; then false; fi
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nix-store --gc --print-dead
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input2=$(readLink $outPath/reference-to-input-2)
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if nix-store --delete $input2; then false; fi
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test -e $input2
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if nix-store --delete $outPath; then false; fi
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test -e $outPath
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for i in $NIX_STORE_DIR/*; do
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if [[ $i =~ /trash ]]; then continue; fi # compat with old daemon
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touch $i.lock
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touch $i.chroot
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done
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nix-collect-garbage
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# Check that the root and its dependencies haven't been deleted.
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cat $outPath/foobar
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cat $outPath/reference-to-input-2/bar
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# Check that the derivation has been GC'd.
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if test -e $drvPath; then false; fi
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rm "$NIX_STATE_DIR"/gcroots/foo
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# Deleting the dependency should now be possible, and delete the referrer as well
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nix-store --delete $input2
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! test -e $outPath
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! test -e $input2
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createAndRootPaths
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rm "$NIX_STATE_DIR"/gcroots/foo
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nix-collect-garbage
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# Check that the store is empty.
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rmdir $NIX_STORE_DIR/.links
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rmdir $NIX_STORE_DIR
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createAndRootPaths
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input0=$(< $outPath/reference-to-input-2/input0)
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input2=$(readLink $outPath/reference-to-input-2)
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fodDrv=$(nix-store -qR $drvPath | grep fod-input.drv)
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fodOut=$(nix-store -q --outputs $fodDrv)
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# path is still live but command should still succeed because of --skip-live
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nix-store --delete --skip-live $(readLink $outPath/reference-to-input-2)
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rm "$NIX_STATE_DIR"/gcroots/foo
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# with the dependent unrooted, we should be able to remove input2...
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nix-store --delete --delete-closure $input2 &> delete-output
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# which should remove input0, since only input2 and top depended on it and we passed --delete-closure
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! test -e $input0
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# but fod should be unaffected, since it's not part of input-2's closure
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test -e $fodOut
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# and stats should be reported correctly
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grep "0.10 MiB freed$" delete-output
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test -z "$(grep "0 paths deleted" delete-output)"
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nix-collect-garbage
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