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to derivations in user environments. Nice for developers (since it prevents build-time-only dependencies from being GC'ed, in conjunction with `gc-keep-outputs'). Turned off by default.
49 lines
2 KiB
Text
49 lines
2 KiB
Text
### Option `gc-keep-outputs'
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#
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# If `true', the garbage collector will keep the outputs of
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# non-garbage derivations. If `false' (default), outputs will be
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# deleted unless they are GC roots themselves (or reachable from other
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# roots).
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#
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# In general, outputs must be registered as roots separately.
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# However, even if the output of a derivation is registered as a root,
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# the collector will still delete store paths that are used only at
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# build time (e.g., the C compiler, or source tarballs downloaded from
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# the network). To prevent it from doing so, set this option to
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# `true'.
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gc-keep-outputs = false
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### Option `gc-keep-derivations'
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#
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# If `true' (default), the garbage collector will keep the derivations
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# from which non-garbage store paths were built. If `false', they
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# will be deleted unless explicitly registered as a root (or reachable
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# from other roots).
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#
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# Keeping derivation around is useful for querying and traceability
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# (e.g., it allows you to ask with what dependencies or options a
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# store path was built), so by default this option is on. Turn it off
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# to safe a bit of disk space (or a lot if `gc-keep-outputs' is also
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# turned on).
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gc-keep-derivations = true
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### Option `env-keep-derivations'
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#
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# If `false' (default), derivations are not stored in Nix user
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# environments. That is, the derivation any build-time-only
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# dependencies may be garbage-collected.
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#
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# If `true', when you add a Nix derivation to a user environment, the
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# path of the derivation is stored in the user environment. Thus, the
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# derivation will not be garbage-collected until the user environment
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# generation is deleted (`nix-env --delete-generations'). To prevent
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# build-time-only dependencies from being collected, you should also
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# turn on `gc-keep-outputs'.
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#
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# The difference between this option and `gc-keep-derivations' is that
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# this one is `sticky': it applies to any user environment created
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# while this option was enabled, while `gc-keep-derivations' only
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# applies at the moment the garbage collector is run.
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env-keep-derivations = false
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