forked from lix-project/lix
Merge pull request #6865 from zuzuleinen/manual-nix-path-empty
document what happens when NIX_PATH is empty
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@ -13,6 +13,17 @@ Most Nix commands interpret the following environment variables:
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e.g. `/home/eelco/Dev:/etc/nixos`. It can be extended using the
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[`-I` option](./opt-common.md#opt-I).
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If `NIX_PATH` is not set at all, Nix will fall back to the following list in [impure](./conf-file.md#conf-pure-eval) and [unrestricted](./conf-file.md#conf-restrict-eval) evaluation mode:
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1. `$HOME/.nix-defexpr/channels`
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2. `nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixpkgs`
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3. `/nix/var/nix/profiles/per-user/root/channels`
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If `NIX_PATH` is set to an empty string, resolving search paths will always fail.
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For example, attempting to use `<nixpkgs>` will produce:
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error: file 'nixpkgs' was not found in the Nix search path
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- [`NIX_IGNORE_SYMLINK_STORE`]{#env-NIX_IGNORE_SYMLINK_STORE}\
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Normally, the Nix store directory (typically `/nix/store`) is not
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allowed to contain any symlink components. This is to prevent
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