guix/scripts/install-nix-from-closure.sh

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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