guix/scripts/install-nix-from-closure.sh
Eelco Dolstra 6814b1dfa1 Generate binary tarballs for installing Nix
For several platforms we don't currently have "native" Nix packages
(e.g. Mac OS X and FreeBSD).  This provides the next best thing: a
tarball containing the closure of Nix, plus a simple script
"nix-finish-install" that initialises the Nix database, registers the
paths in the closure as valid, and runs "nix-env -i /path/to/nix" to
initialise the user profile.

The tarball must be unpacked in the root directory.  It creates
/nix/store/... and /usr/bin/nix-finish-install.  Typical installation
is as follows:

  $ cd /
  $ tar xvf /path/to/nix-1.1pre1234_abcdef-x86_64-linux.tar.bz2
  $ nix-finish-install
  (if necessary add ~/.nix-profile/etc/profile.d/nix.sh to the shell
  login scripts)

After this, /usr/bin/nix-finish-install can be deleted, if desired.

The downside to the binary tarball is that it's pretty big (~55 MiB
for x86_64-linux).
2012-05-22 18:36:54 -04:00

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#! /bin/sh -e
nix=@nix@
regInfo=@regInfo@
if ! $nix/bin/nix-store --load-db < $regInfo; then
echo "$0: unable to register valid paths"
exit 1
fi
. @nix@/etc/profile.d/nix.sh
if ! $nix/bin/nix-env -i @nix@; then
echo "$0: unable to install Nix into your default profile"
exit 1
fi
# Add nix.sh to the shell's profile.d directory.
p=$NIX_LINK/etc/profile.d/nix.sh
if [ -w /etc/profile.d ]; then
ln -s $p /etc/profile.d/
elif [ -w /usr/local/etc/profile.d ]; then
ln -s $p /usr/local/etc/profile.d/
else
cat <<EOF
Installation finished. To ensure that the necessary environment
variables are set, please add the line
source $p
to your shell profile (e.g. ~/.profile).
EOF
fi