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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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7
src/nix-env/nix-env.cc
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@ -1289,7 +1289,7 @@ static void opSwitchProfile(Globals & globals, Strings opFlags, Strings opArgs)
throw UsageError("exactly one argument expected");
Path profile = absPath(opArgs.front());
Path profileLink = getHome() + "/.nix-profile";
Path profileLink = settings.useXDGBaseDirectories ? createNixStateDir() + "/profile" : getHome() + "/.nix-profile";
switchLink(profileLink, profile);
}
@ -1393,7 +1393,10 @@ static int main_nix_env(int argc, char * * argv)
Globals globals;
globals.instSource.type = srcUnknown;
globals.instSource.nixExprPath = getHome() + "/.nix-defexpr";
{
Path nixExprPath = settings.useXDGBaseDirectories ? createNixStateDir() + "/defexpr" : getHome() + "/.nix-defexpr";
globals.instSource.nixExprPath = nixExprPath;
}
globals.instSource.systemFilter = "*";
if (!pathExists(globals.instSource.nixExprPath)) {