55 lines
1.9 KiB
Nix
55 lines
1.9 KiB
Nix
# This module defines a standard configuration for NixOS shells.
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{ config, lib, ... }:
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with lib;
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{
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config = {
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environment.shellInit =
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''
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# Set up the per-user profile.
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mkdir -m 0755 -p "$NIX_USER_PROFILE_DIR"
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if [ "$(stat --printf '%u' "$NIX_USER_PROFILE_DIR")" != "$(id -u)" ]; then
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echo "WARNING: the per-user profile dir $NIX_USER_PROFILE_DIR should belong to user id $(id -u)" >&2
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fi
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if [ -w "$HOME" ]; then
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if ! [ -L "$HOME/.nix-profile" ]; then
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if [ "$USER" != root ]; then
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ln -s "$NIX_USER_PROFILE_DIR/profile" "$HOME/.nix-profile"
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else
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# Root installs in the system-wide profile by default.
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ln -s /nix/var/nix/profiles/default "$HOME/.nix-profile"
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fi
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fi
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# Subscribe the root user to the NixOS channel by default.
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if [ "$USER" = root -a ! -e "$HOME/.nix-channels" ]; then
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echo "${config.system.defaultChannel} nixos" > "$HOME/.nix-channels"
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fi
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# Create the per-user garbage collector roots directory.
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NIX_USER_GCROOTS_DIR="/nix/var/nix/gcroots/per-user/$USER"
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mkdir -m 0755 -p "$NIX_USER_GCROOTS_DIR"
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if [ "$(stat --printf '%u' "$NIX_USER_GCROOTS_DIR")" != "$(id -u)" ]; then
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echo "WARNING: the per-user gcroots dir $NIX_USER_GCROOTS_DIR should belong to user id $(id -u)" >&2
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fi
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# Set up a default Nix expression from which to install stuff.
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if [ ! -e "$HOME/.nix-defexpr" -o -L "$HOME/.nix-defexpr" ]; then
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rm -f "$HOME/.nix-defexpr"
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mkdir -p "$HOME/.nix-defexpr"
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if [ "$USER" != root ]; then
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ln -s /nix/var/nix/profiles/per-user/root/channels "$HOME/.nix-defexpr/channels_root"
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fi
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fi
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fi
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'';
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};
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}
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