install-nix-here.sh

#!/bin/bash
# This script installs nix from source into the current working directory.

set -e

export TARGET=$(pwd)
export BUILDTMP=/tmp/install-nix-here
export BUILDTMPESC=$(echo $BUILDTMP | sed -e's/\//\\\//g')

if [ "$(ls -A $TARGET)" ]; then
    echo "Target directory $TARGET is not empty. Exiting."
    exit
fi


cd
mkdir -p $BUILDTMP
rm -rf $BUILDTMP/*
cd $BUILDTMP
wget https://nixos.org/releases/nix/nix-1.10/nix-1.10.tar.xz
tar xvJf nix-1.10.tar.xz
wget http://bzip.org/1.0.6/bzip2-1.0.6.tar.gz
tar xzvf bzip2-1.0.6.tar.gz
wget http://curl.haxx.se/download/curl-7.35.0.tar.lzma
lzma -d curl-7.35.0.tar.lzma
tar xvf curl-7.35.0.tar

wget https://www.sqlite.org/2014/sqlite-autoconf-3080300.tar.gz
tar xzvf sqlite-autoconf-3080300.tar.gz
wget http://search.cpan.org/CPAN/authors/id/T/TI/TIMB/DBI-1.631.tar.gz
tar xzvf DBI-1.631.tar.gz
wget http://search.cpan.org/CPAN/authors/id/I/IS/ISHIGAKI/DBD-SQLite-1.40.tar.gz
tar xzvf DBD-SQLite-1.40.tar.gz
wget http://search.cpan.org/CPAN/authors/id/S/SZ/SZBALINT/WWW-Curl-4.15.tar.gz
tar xzvf WWW-Curl-4.15.tar.gz

export PATH=$BUILDTMP/bin:$PATH
export PKG_CONFIG_PATH=$BUILDTMP/lib/pkgconfig:$PKG_CONFIG_PATH
export LDFLAGS="-L$BUILDTMP/lib $LDFLAGS"
export CFLAGS="-I$BUILDTMP/include $CFLAGS"
export CPPFLAGS="-I$BUILDTMP/include $CPPFLAGS"
export PERL5OPT="-I$BUILDTMP/lib/perl"

cd bzip2-1.0.6
make -f Makefile-libbz2_so
make install PREFIX=$BUILDTMP
cp libbz2.so.1.0 libbz2.so.1.0.6 $BUILDTMP/lib

cd $BUILDTMP/curl-7.35.0/
./configure --prefix=$BUILDTMP; make -j8; make install

cd $BUILDTMP/sqlite-autoconf-3080300/
./configure --prefix=$BUILDTMP; make -j8; make install

cd $BUILDTMP/DBI-1.631
perl Makefile.PL PREFIX=$BUILDTMP; make; make install

cd $BUILDTMP/DBD-SQLite-1.40
perl Makefile.PL PREFIX=$BUILDTMP; make; make install

cd $BUILDTMP/WWW-Curl-4.15
perl Makefile.PL PREFIX=$BUILDTMP; make; make install

cd $BUILDTMP/nix-1.10
env \
    PKG_CONFIG_PATH="$BUILDTMP/lib/pkgconfig" \
    LDFLAGS="-L$BUILDTMP/lib $LDFLAGS" \
    LD_LIBRARY_PATH="$BUILDTMP/lib:$LD_LIBRARY_PATH" \
    CFLAGS="-I$BUILDTMP/include" \
    CPPFLAGS="-I$BUILDTMP/include" \
    ./configure --prefix=$BUILDTMP --with-store-dir=$TARGET/store --localstatedir=$TARGET/var

sed -i'' -e"s/libstore_LDFLAGS = -lsqlite3 -lbz2 -lcurl/libstore_LDFLAGS = -L$BUILDTMPESC\/lib -lsqlite3 -lbz2 -lcurl/" src/libstore/local.mk
sed -i'' -e"s/nix-store_LDFLAGS = -lbz2/nix-store_LDFLAGS = -L$BUILDTMPESC\/lib -lbz2/" src/nix-store/local.mk
sed -i'' -e"s/bsdiff_LDFLAGS = -lbz2/bsdiff_LDFLAGS = -L$BUILDTMPESC\/lib -lbz2/" src/bsdiff-4.3/local.mk
sed -i'' -e"s/bspatch_LDFLAGS = -lbz2/bspatch_LDFLAGS = -L$BUILDTMPESC\/lib -lbz2/" src/bsdiff-4.3/local.mk
sed -i'' -e"s/#include <bzlib.h>/#include <$BUILDTMPESC\/include\/bzlib.h>/" src/nix-store/nix-store.cc
sed -i'' -e"s/#include <bzlib.h>/#include <$BUILDTMPESC\/include\/bzlib.h>/" src/libstore/build.cc
sed -i'' -e"s/#include <bzlib.h>/#include <$BUILDTMPESC\/include\/bzlib.h>/" src/bsdiff-4.3/bspatch.c
sed -i'' -e"s/#include <bzlib.h>/#include <$BUILDTMPESC\/include\/bzlib.h>/" src/bsdiff-4.3/bsdiff.c
make
make install

# git clone https://github.com/NixOS/nixpkgs.git $TARGET/nixpkgs
# ln -s $TARGET/nixpkgs $HOME/.nix-defexpr

nix-channel --add http://nixos.org/channels/nixpkgs-unstable
nix-channel --update
 
mkdir -p $TARGET/store
mkdir -p $TARGET/var

mkdir -p $HOME/.nixpkgs
echo " pkgs:
{
    packageOverrides = self: {
        nix = self.nix.override {
            storeDir = "$TARGET/store";
            stateDir = "$TARGET/var";
        };
    };
}" > $HOME/.nixpkgs/config.nix

$BUILDTMP/bin/nix-env -iA nix

ln -s $TARGET/var/nix/profiles/default $HOME/.nix-profile
echo 'export PATH=$HOME/.nix-profile/bin:$PATH' >> $HOME/.profile
if [ -e /home/rene/.nix-profile/etc/profile.d/nix.sh ]; then . /home/rene/.nix-profile/etc/profile.d/nix.sh; fi

echo "nix-install-here finished. .profile updated. Please run
  source ~/.profile
Enjoy nix!"