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nix-profile{,-daemon}.fish: check for profile in XDG_DATA_HOME (backport #13245) #13591

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Merged
mergify merged 1 commit into from
Jul 30, 2025
Merged

nix-profile{,-daemon}.fish: check for profile in XDG_DATA_HOME (backport #13245) #13591

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28 changes: 27 additions & 1 deletion scripts/nix-profile-daemon.fish.in
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,33 @@ end

# Set up the per-user profile.

set --local NIX_LINK $HOME/.nix-profile
set --local NIX_LINK "$HOME/.nix-profile"
set --local NIX_LINK_NEW
if test -n "$XDG_STATE_HOME"
set NIX_LINK_NEW "$XDG_STATE_HOME/nix/profile"
else
set NIX_LINK_NEW "$HOME/.local/state/nix/profile"
end
if test -e "$NIX_LINK_NEW"
if test -t 2; and test -e "$NIX_LINK"
set --local warning "\033[1;35mwarning:\033[0m "
printf "$warning Both %s and legacy %s exist; using the former.\n" "$NIX_LINK_NEW" "$NIX_LINK" 1>&2

if test (realpath "$NIX_LINK") = (realpath "$NIX_LINK_NEW")
printf " Since the profiles match, you can safely delete either of them.\n" 1>&2
else
# This should be an exceptionally rare occasion: the only way to get it would be to
# 1. Update to newer Nix;
# 2. Remove .nix-profile;
# 3. Set the $NIX_LINK_NEW to something other than the default user profile;
# 4. Roll back to older Nix.
# If someone did all that, they can probably figure out how to migrate the profile.
printf "$warning Profiles do not match. You should manually migrate from %s to %s.\n" "$NIX_LINK" "$NIX_LINK_NEW" 1>&2
end
end

set NIX_LINK "$NIX_LINK_NEW"
end

# Set up environment.
# This part should be kept in sync with nixpkgs:nixos/modules/programs/environment.nix
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33 changes: 32 additions & 1 deletion scripts/nix-profile.fish.in
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,38 @@ end

# Set up the per-user profile.

set --local NIX_LINK $HOME/.nix-profile
set --local NIX_LINK
if test -n "$NIX_STATE_HOME"
set NIX_LINK "$NIX_STATE_HOME/.nix-profile"
else
set NIX_LINK "$HOME/.nix-profile"
set --local NIX_LINK_NEW
if test -n "$XDG_STATE_HOME"
set NIX_LINK_NEW "$XDG_STATE_HOME/nix/profile"
else
set NIX_LINK_NEW "$HOME/.local/state/nix/profile"
end
if test -e "$NIX_LINK_NEW"
if test -t 2; and test -e "$NIX_LINK"
set --local warning "\033[1;35mwarning:\033[0m "
printf "$warning Both %s and legacy %s exist; using the former.\n" "$NIX_LINK_NEW" "$NIX_LINK" 1>&2

if test (realpath "$NIX_LINK") = (realpath "$NIX_LINK_NEW")
printf " Since the profiles match, you can safely delete either of them.\n" 1>&2
else
# This should be an exceptionally rare occasion: the only way to get it would be to
# 1. Update to newer Nix;
# 2. Remove .nix-profile;
# 3. Set the $NIX_LINK_NEW to something other than the default user profile;
# 4. Roll back to older Nix.
# If someone did all that, they can probably figure out how to migrate the profile.
printf "$warning Profiles do not match. You should manually migrate from %s to %s.\n" "$NIX_LINK" "$NIX_LINK_NEW" 1>&2
end
end

set NIX_LINK "$NIX_LINK_NEW"
end
end

# Set up environment.
# This part should be kept in sync with nixpkgs:nixos/modules/programs/environment.nix
Expand Down
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