mirror of
https://github.com/NixOS/nix
synced 2025-06-24 09:41:15 +02:00
107 lines
4.2 KiB
Fish
107 lines
4.2 KiB
Fish
# Only execute this file once per shell.
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if test -z "$HOME" || test -n "$__ETC_PROFILE_NIX_SOURCED"
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exit
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end
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set --global --export __ETC_PROFILE_NIX_SOURCED 1
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# Local helpers
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function add_path --argument-names new_path
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if type -q fish_add_path
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# fish 3.2.0 or newer
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fish_add_path --prepend --global $new_path
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else
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# older versions of fish
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if not contains $new_path $fish_user_paths
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set --global fish_user_paths $new_path $fish_user_paths
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end
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end
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end
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# Main configuration
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# Set up the per-user profile.
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set --local NIX_LINK
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if test -n "$NIX_STATE_HOME"
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set NIX_LINK "$NIX_STATE_HOME/.nix-profile"
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else
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set NIX_LINK "$HOME/.nix-profile"
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set --local NIX_LINK_NEW
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if test -n "$XDG_STATE_HOME"
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set NIX_LINK_NEW "$XDG_STATE_HOME/nix/profile"
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else
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set NIX_LINK_NEW "$HOME/.local/state/nix/profile"
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end
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if test -e "$NIX_LINK_NEW"
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if test -t 2; and test -e "$NIX_LINK"
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set --local warning "\033[1;35mwarning:\033[0m "
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printf "$warning Both %s and legacy %s exist; using the former.\n" "$NIX_LINK_NEW" "$NIX_LINK" 1>&2
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if test (realpath "$NIX_LINK") = (realpath "$NIX_LINK_NEW")
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printf " Since the profiles match, you can safely delete either of them.\n" 1>&2
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else
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# This should be an exceptionally rare occasion: the only way to get it would be to
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# 1. Update to newer Nix;
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# 2. Remove .nix-profile;
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# 3. Set the $NIX_LINK_NEW to something other than the default user profile;
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# 4. Roll back to older Nix.
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# If someone did all that, they can probably figure out how to migrate the profile.
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printf "$warning Profiles do not match. You should manually migrate from %s to %s.\n" "$NIX_LINK" "$NIX_LINK_NEW" 1>&2
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end
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end
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set NIX_LINK "$NIX_LINK_NEW"
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end
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end
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# Set up environment.
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# This part should be kept in sync with nixpkgs:nixos/modules/programs/environment.nix
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set --export NIX_PROFILES "@localstatedir@/nix/profiles/default $HOME/.nix-profile"
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# Populate bash completions, .desktop files, etc
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if test -z "$XDG_DATA_DIRS"
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# According to XDG spec the default is /usr/local/share:/usr/share, don't set something that prevents that default
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set --export XDG_DATA_DIRS "/usr/local/share:/usr/share:$NIX_LINK/share:/nix/var/nix/profiles/default/share"
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else
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set --export XDG_DATA_DIRS "$XDG_DATA_DIRS:$NIX_LINK/share:/nix/var/nix/profiles/default/share"
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end
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# Set $NIX_SSL_CERT_FILE so that Nixpkgs applications like curl work.
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if test -n "$NIX_SSL_CERT_FILE"
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: # Allow users to override the NIX_SSL_CERT_FILE
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else if test -e /etc/ssl/certs/ca-certificates.crt # NixOS, Ubuntu, Debian, Gentoo, Arch
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set --export NIX_SSL_CERT_FILE /etc/ssl/certs/ca-certificates.crt
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else if test -e /etc/ssl/ca-bundle.pem # openSUSE Tumbleweed
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set --export NIX_SSL_CERT_FILE /etc/ssl/ca-bundle.pem
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else if test -e /etc/ssl/certs/ca-bundle.crt # Old NixOS
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set --export NIX_SSL_CERT_FILE /etc/ssl/certs/ca-bundle.crt
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else if test -e /etc/pki/tls/certs/ca-bundle.crt # Fedora, CentOS
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set --export NIX_SSL_CERT_FILE /etc/pki/tls/certs/ca-bundle.crt
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else if test -e "$NIX_LINK/etc/ssl/certs/ca-bundle.crt" # fall back to cacert in Nix profile
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set --export NIX_SSL_CERT_FILE "$NIX_LINK/etc/ssl/certs/ca-bundle.crt"
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else if test -e "$NIX_LINK/etc/ca-bundle.crt" # old cacert in Nix profile
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set --export NIX_SSL_CERT_FILE "$NIX_LINK/etc/ca-bundle.crt"
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else
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# Fall back to what is in the nix profiles, favouring whatever is defined last.
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for i in (string split ' ' $NIX_PROFILES)
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if test -e "$i/etc/ssl/certs/ca-bundle.crt"
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set --export NIX_SSL_CERT_FILE "$i/etc/ssl/certs/ca-bundle.crt"
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end
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end
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end
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# Only use MANPATH if it is already set. In general `man` will just simply
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# pick up `.nix-profile/share/man` because is it close to `.nix-profile/bin`
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# which is in the $PATH. For more info, run `manpath -d`.
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if set --query MANPATH
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set --export --prepend --path MANPATH "$NIX_LINK/share/man"
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end
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add_path "@localstatedir@/nix/profiles/default/bin"
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add_path "$NIX_LINK/bin"
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# Cleanup
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functions -e add_path
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