6e0ca02425
`nix-collect-garbage --dry-run` previously elided the entire garbage collection check, meaning that it would just exit the script without printing anything. This change makes the dry run flag instead set the GC action to `gcReturnDead` rather than `gcDeleteDead`, and then continue with the script. So if you set `--dry-run`, it will print the paths it *would* have garbage collected, but not actually delete them. I filed a bug for this: https://git.lix.systems/lix-project/lix/issues/432 but then realised I could give fixing it a go myself. Change-Id: I062dbf1a80bbab192b5fd0b3a453a0b555ad16f2
40 lines
1 KiB
Bash
40 lines
1 KiB
Bash
source common.sh
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clearStore
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## Test `nix-collect-garbage --dry-run`
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testCollectGarbageDryRun () {
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clearProfiles
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# Install then uninstall a package
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# This should leave packages ready to be garbage collected.
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nix-env -f ./user-envs.nix -i foo-1.0
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nix-env -f ./user-envs.nix -e foo-1.0
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nix-env --delete-generations old
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[[ $(nix-store --gc --print-dead | wc -l) -eq 7 ]]
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nix-collect-garbage --dry-run
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[[ $(nix-store --gc --print-dead | wc -l) -eq 7 ]]
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}
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testCollectGarbageDryRun
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# Run the same test, but forcing the profiles an arbitrary location.
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rm ~/.nix-profile
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ln -s $TEST_ROOT/blah ~/.nix-profile
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testCollectGarbageDryRun
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# Run the same test, but forcing the profiles at their legacy location under
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# /nix/var/nix.
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#
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# Note that we *don't* use the default profile; `nix-collect-garbage` will
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# need to check the legacy conditional unconditionally not just follow
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# `~/.nix-profile` to pass this test.
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#
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# Regression test for #8294
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rm ~/.nix-profile
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testCollectGarbageDryRun --profile "$NIX_STATE_DIR/profiles/per-user/me"
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