install-nix-from-closure.sh · nix-bundle

git.iko.soy/nix-bundle

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nix-bundle/install-nix-from-closure.sh

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1#!/bin/sh

3set -e

5dest="/nix"

6self="."

7nix="@nix@"

8cacert="@cacert@"

10if ! [ -e $self/.reginfo ]; then

11 echo "$0: incomplete installer (.reginfo is missing)" >&2

12 exit 1

13fi

15if [ -z "$USER" ]; then

16 echo "$0: \$USER is not set" >&2

17 exit 1

18fi

20if [ "$(id -u)" -eq 0 ]; then

21 printf '\e[1;31mwarning: installing Nix as root is not supported by this script!\e[0m\n'

22fi

24echo "performing a single-user installation of Nix..." >&2

26if ! [ -e $dest ]; then

27 cmd="mkdir -m 0755 $dest && chown $USER $dest"

28 echo "directory $dest does not exist; creating it by running '$cmd' using sudo" >&2

29 if ! sudo sh -c "$cmd"; then

30 echo "$0: please manually run ‘$cmd’ as root to create $dest" >&2

31 exit 1

32 fi

33fi

35if ! [ -w $dest ]; then

36 echo "$0: directory $dest exists, but is not writable by you. This could indicate that another user has already performed a single-user installation of Nix on this system. If you wish to enable multi-user support see http://nixos.org/nix/manual/#ssec-multi-user. If you wish to continue with a single-user install for $USER please run ‘chown -R $USER $dest’ as root." >&2

37 exit 1

38fi

40mkdir -p $dest/store

42echo -n "copying Nix to $dest/store..." >&2

44for i in $(cd $self/store >/dev/null && echo *); do

45 echo -n "." >&2

46 i_tmp="$dest/store/$i.$$"

47 if [ -e "$i_tmp" ]; then

48 rm -rf "$i_tmp"

49 fi

50 if ! [ -e "$dest/store/$i" ]; then

51 cp -Rp "$self/store/$i" "$i_tmp"