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A setting to follow XDG Base Directory standard

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XDG Base Directory is a standard for locations for storing various
files. Nix has a few files which seem to fit in the standard, but
currently use a custom location directly in the user's ~, polluting
it:

- ~/.nix-profile
- ~/.nix-defexpr
- ~/.nix-channels

This commit adds a config option (use-xdg-base-directories) to follow
the XDG spec and instead use the following locations:

- $XDG_STATE_HOME/nix/profile
- $XDG_STATE_HOME/nix/defexpr
- $XDG_STATE_HOME/nix/channels

If $XDG_STATE_HOME is not set, it is assumed to be ~/.local/state.

Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
Co-authored-by: Tim Fenney <kodekata@gmail.com>
Co-authored-by: pasqui23 <pasqui23@users.noreply.github.com>
Co-authored-by: Artturin <Artturin@artturin.com>
Co-authored-by: John Ericson <Ericson2314@Yahoo.com>
This commit is contained in:
Alexander Bantyev 2021-11-17 23:35:21 +03:00
parent a31d7d4e5e
commit 2384d36083
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GPG key ID: E081FF12ADCB4AD5
16 changed files with 153 additions and 20 deletions
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2
src/libexpr/eval.cc
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@ -2496,7 +2496,7 @@ Strings EvalSettings::getDefaultNixPath()
res.push_back(s ? *s + "=" + p : p);
};
add(getHome() + "/.nix-defexpr/channels");
add(settings.useXDGBaseDirectories ? getStateDir() + "/nix/defexpr/channels" : getHome() + "/.nix-defexpr/channels");
add(settings.nixStateDir + "/profiles/per-user/root/channels/nixpkgs", "nixpkgs");
add(settings.nixStateDir + "/profiles/per-user/root/channels");