testing/nix: new aport

https://nixos.org/nix/
The purely functional package manager

1 files changed, 84 insertions, 0 deletions

diff --git a/testing/nix/nix-profile.sh b/testing/nix/nix-profile.sh
new file mode 100644
index 0000000000..527122d322
--- /dev/null
+++ b/testing/nix/nix-profile.sh
@@ -0,0 +1,84 @@
+# Profile for Nix package manager
+# This script is based on https://github.com/NixOS/nix/blob/master/scripts/nix-profile.sh.in.
+
+# Sanity check
+[ "$HOME" ] && [ "$USER" ] || return 0
+
+_nix_setup_user() {
+	local nix_profile="$HOME/.nix-profile"
+	local nix_defexpr="$HOME/.nix-defexpr"
+	local profiles_dir="/nix/var/nix/profiles"
+	local user_profile_dir="$profiles_dir/per-user/$USER"
+	local user_gcroots_dir="/nix/var/nix/gcroots/per-user/$USER"
+
+	mkdir -m 0755 -p "$user_profile_dir"
+	[ -O "$user_profile_dir" ] \
+		|| echo "Nix: WARNING: bad ownership on $user_profile_dir, should be $(id -u)" >&2
+
+	[ -w "$HOME" ] || return 0
+
+	# Create ~/.nix-profile if needed.
+	if ! [ -L "$nix_profile" ]; then
+		echo "Nix: creating $nix_profile" >&2
+
+		if [ "$USER" = root ]; then
+			# Root installs in the system-wide profile by default.
+			ln -s "$profiles_dir/default" "$nix_profile" \
+				|| echo "Nix: WARNING: could not create $nix_profile -> $profiles_dir/default" >&2
+		else
+			ln -s "$user_profile_dir/profile" "$nix_profile" \
+				|| echo "Nix: WARNING: could not create $nix_profile -> $user_profile_dir/profile" >&2
+		fi
+	fi
+
+	# Subscribe the user to the unstable Nixpkgs channel by default.
+	if ! [ -e "$HOME/.nix-channels" ]; then
+		echo 'https://nixos.org/channels/nixpkgs-unstable nixpkgs' > "$HOME/.nix-channels"
+	fi
+
+	# Create the per-user garbage collector roots directory.
+	mkdir -m 0755 -p "$user_gcroots_dir"
+	[ -O "$user_gcroots_dir" ] \
+		|| echo "Nix: WARNING: bad ownership on $user_gcroots_dir, should be $(id -u)" >&2
+
+	# Set up a default Nix expression from which to install stuff.
+	if [ ! -e "$nix_defexpr" -o -L "$nix_defexpr" ]; then
+		rm -f "$nix_defexpr"
+		mkdir -p "$nix_defexpr"
+
+		if [ "$USER" != root ]; then
+			ln -s "$profiles_dir"/per-user/root/channels "$nix_defexpr"/channels_root
+		fi
+	fi
+
+	export NIX_PROFILES="$NIX_PROFILES $nix_profile"
+
+	# Append ~/.nix-defexpr/channels/nixpkgs to $NIX_PATH so that <nixpkgs>
+	# paths work when the user has fetched the Nixpkgs channel.
+	export NIX_PATH="${NIX_PATH:+$NIX_PATH:}nixpkgs=$nix_defexpr/channels/nixpkgs"
+
+	# Set up secure multi-user builds; non-root users build through the Nix daemon.
+	[ "$USER" = root ] || export NIX_REMOTE='daemon'
+}
+
+
+# Set $NIX_SSL_CERT_FILE so that Nixpkgs applications like curl work.
+export NIX_SSL_CERT_FILE='/etc/ssl/certs/ca-certificates.crt'
+
+# The default profile for all users.
+export NIX_PROFILES='/nix/var/nix/profiles/default'
+
+# Set up environment for users that are allowed to build and install Nix
+# packages: root and members of nix or wheel group.
+if [ "$USER" = root ] || id -nG | grep -Eq '\b(nix|wheel)\b'; then
+	_nix_setup_user
+fi
+
+# Set up PATH and MANPATH.
+for _i in $NIX_PROFILES; do
+	export PATH="$_i/bin:$PATH"
+	[ "$MANPATH" ] && export MANPATH="$_i/share/man:$MANPATH"
+done
+
+unset _i
+unset -f _nix_setup_user