1 files changed, 50 insertions, 0 deletions
diff --git a/modules/programs/bash/profile.sh b/modules/programs/bash/profile.sh
new file mode 100644
index 00000000000..8718f8087fc
--- /dev/null
+++ b/modules/programs/bash/profile.sh
@@ -0,0 +1,50 @@
+# This file is executed by all login shells.  Don't ask what a login
+# shell is, nobody knows.  Most global environment variables should go
+# in /etc/bashrc, which is by default included by non-login shells,
+# but which we include here as well.
+
+source /etc/bashrc
+
+
+# Set up the per-user profile.
+mkdir -m 0755 -p $NIX_USER_PROFILE_DIR
+if test "$(stat --printf '%u' $NIX_USER_PROFILE_DIR)" != "$(id -u)"; then
+    echo "WARNING: bad ownership on $NIX_USER_PROFILE_DIR" >&2
+fi
+
+if ! test -L $HOME/.nix-profile; then
+    echo "creating $HOME/.nix-profile" >&2 
+    if test "$USER" != root; then
+        ln -s $NIX_USER_PROFILE_DIR/profile $HOME/.nix-profile
+    else
+        # Root installs in the system-wide profile by default.
+        ln -s /nix/var/nix/profiles/default $HOME/.nix-profile
+    fi
+fi
+
+
+# Create the per-user garbage collector roots directory.
+NIX_USER_GCROOTS_DIR=/nix/var/nix/gcroots/per-user/$USER
+mkdir -m 0755 -p $NIX_USER_GCROOTS_DIR
+if test "$(stat --printf '%u' $NIX_USER_GCROOTS_DIR)" != "$(id -u)"; then
+    echo "WARNING: bad ownership on $NIX_USER_GCROOTS_DIR" >&2
+fi
+
+
+# Set up a default Nix expression from which to install stuff.
+if test ! -e $HOME/.nix-defexpr -o -L $HOME/.nix-defexpr; then
+    echo "creating $HOME/.nix-defexpr" >&2
+    rm -f $HOME/.nix-defexpr
+    mkdir $HOME/.nix-defexpr
+    ln -s /etc/nixos/nixpkgs $HOME/.nix-defexpr/nixpkgs_sys
+    ln -s /etc/nixos/nixos $HOME/.nix-defexpr/nixos
+    if test "$USER" != root; then
+        ln -s /nix/var/nix/gcroots/per-user/root/channels $HOME/.nix-defexpr/channels_root
+    fi
+fi
+
+
+# Read system-wide modifications.
+if test -f /etc/profile.local; then
+    source /etc/profile.local
+fi