3 files changed, 160 insertions, 0 deletions

diff --git a/nix/.SRCINFO b/nix/.SRCINFO
new file mode 100644
index 0000000..51e5041
--- /dev/null
+++ b/nix/.SRCINFO
@@ -0,0 +1,23 @@
+pkgbase = nix
+        pkgdesc = A purely functional package manager
+        pkgver = 2.2.2
+        pkgrel = 2
+        url = https://nixos.org/nix
+        install = nix.install
+        arch = i686
+        arch = x86_64
+        arch = armv7h
+        license = LGPL
+        makedepends = bzip2
+        makedepends = openssl
+        depends = gc
+        depends = libsodium
+        depends = boost
+        depends = brotli
+        depends = editline
+        depends = dash-static
+        source = https://nixos.org/releases/nix/nix-2.2.2/nix-2.2.2.tar.xz
+        sha256sums = f80a1b4f9837a8d33209f0b7769d5038335459ff4303eccf3e9217a9eca8594c
+
+pkgname = nix
+
diff --git a/nix/PKGBUILD b/nix/PKGBUILD
new file mode 100644
index 0000000..8005698
--- /dev/null
+++ b/nix/PKGBUILD
@@ -0,0 +1,40 @@
+# Maintainer: Alastair Pharo <asppsa at gmail dot com>
+# Contributor: Felix Morgner <felix.morgner@gmail.com>
+# Contributor: Vlad M. <vlad@archlinux.net>
+# Contributor: Mario Rodas
+# Contributor: Oozyslug <oozyslug at gmail dot com>
+# Contributor: koral <koral at mailoo dot org>
+# Contributor: Anders Bennehag
+
+pkgname=nix
+pkgver=2.2.2
+pkgrel=2
+pkgdesc="A purely functional package manager"
+arch=('i686' 'x86_64' 'armv7h')
+url="https://nixos.org/nix"
+license=('LGPL')
+depends=('gc' 'libsodium' 'boost' 'brotli' 'editline' 'dash-static')
+makedepends=('bzip2' 'openssl')
+install=nix.install
+source=("https://nixos.org/releases/nix/nix-$pkgver/nix-$pkgver.tar.xz")
+sha256sums=('f80a1b4f9837a8d33209f0b7769d5038335459ff4303eccf3e9217a9eca8594c')
+
+prepare() {
+  cd "$pkgname-$pkgver"
+}
+
+build () {
+  cd "$pkgname-$pkgver"
+  ./configure --prefix=/usr \
+              --libexecdir="/usr/lib/$pkgname" \
+              --sysconfdir=/etc \
+              --with-sandbox-shell=/usr/bin/dash-static \
+              --enable-gc
+  make
+}
+
+package() {
+  cd "$pkgname-$pkgver"
+  make DESTDIR="$pkgdir" install
+  install -Dm644 COPYING "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}
diff --git a/nix/nix.install b/nix/nix.install
new file mode 100644
index 0000000..613cee6
--- /dev/null
+++ b/nix/nix.install
@@ -0,0 +1,97 @@
+
+pre_install () {
+  # Check that the group and users don't already exist
+  if [[ -n $(cut -d: -f1 /etc/group | grep -w nixbld) ]]; then
+    echo "The nixbld group already exists.  This install cannot proceed."
+    exit 1
+  fi
+
+  for i in {1..10}; do
+    if [[ -n $(cut -d: -f1 /etc/passwd | grep -w nixbld$i) ]]; then
+      echo "The nixbld$i user already exists.  This install cannot proceed."
+      exit 1
+    fi
+  done
+}
+
+create_users () {
+  # Create a nixbld group.
+  groupadd -r nixbld
+
+  # Create 10 nixbld{i} users
+  for i in {1..10}; do
+    useradd -g nixbld -G nixbld -r -N -M -d /var/empty -s /sbin/nologin nixbld$i
+  done
+}
+
+delete_users() {
+  # Remove the users
+  for i in {1..10}; do
+    userdel nixbld$i
+  done
+
+  # Remove the group
+  groupdel nixbld
+}
+
+create_store() {
+  # Create nix folders and set permissions
+  mkdir -p /nix/store
+  chown root.nixbld /nix/store
+  chmod 1775 /nix/store
+  mkdir -p -m 1777 /nix/var/nix/gcroots/per-user
+  mkdir -p -m 1777 /nix/var/nix/profiles/per-user
+}
+
+restore_store() {
+  # Restore folder permissions
+  chmod 755 /nix/store
+  chown root.root /nix/store
+}
+
+init_channels() {
+ # Initialize default nix channel
+  echo "Initializing default nix channel"
+  source /etc/profile.d/nix.sh
+  nix-channel --update
+}
+
+daemon_info() {
+  echo "To start the nix daemon, execute one of the following:"
+  echo
+  echo "    systemctl enable nix-daemon.socket       # Sets the daemon to start on next boot"
+  echo "    systemctl enable --now nix-daemon.socket # Starts now and on next boot too"
+  echo
+  echo "Also, if this is a new install, you need to start a new login shell or otherwise"
+  echo
+  echo "    source /etc/profile.d/nix.sh"
+  echo "    source /etc/profile.d/nix-daemon.sh"
+  echo
+  echo "Once your environment is set-up, you will need to add some channels.  You can see how"
+  echo "to do that here:"
+  echo "    https://nixos.org/nix/manual/#sec-channels"
+}
+
+post_install() {
+  create_users
+  create_store
+  init_channels
+  daemon_info
+}
+
+pre_upgrade() {
+  systemctl stop nix-daemon.socket
+  systemctl stop nix-daemon
+}
+
+post_upgrade() {
+  delete_users
+  create_users
+  create_store
+  daemon_info
+}
+
+pre_remove() {
+  restore_store
+  delete_users
+}