installer: move creating default configuration to README

.github/workflows/test.yml

@@ -49,17 +49,15 @@ jobs:
       run: |
         export NIX_PATH=$HOME/.nix-defexpr/channels
 
-        # We run nix-darwin twice to test that it can create darwin-configuration correctly for us
-        # but we expect it to fail setting up /etc/nix/nix.conf
-        nix-shell -A installer || true
+        mkdir -p ~/.config/nix-darwin
+        cp modules/examples/simple.nix ~/.config/nix-darwin/configuration.nix
 
         nixConfHash=$(shasum -a 256 /etc/nix/nix.conf | cut -d ' ' -f 1)
         /usr/bin/sed -i.bak \
           "s/# programs.fish.enable = true;/nix.settings.access-tokens = [ \"github.com=\${{ secrets.GITHUB_TOKEN }}\" ]; environment.etc.\"nix\/nix.conf\".knownSha256Hashes = [ \"$nixConfHash\" ];/" \
-          ~/.nixpkgs/darwin-configuration.nix
+          ~/.config/nix-darwin/configuration.nix
 
-        nix-shell -A installer
-        nix-shell -A installer.check
+        nix-shell -A installer -I darwin-config=$HOME/.config/nix-darwin/configuration.nix
     - name: Build and activate default derivation
       run: |
         . /etc/static/bashrc
@@ -97,17 +95,15 @@ jobs:
       run: |
         export NIX_PATH=$HOME/.nix-defexpr/channels
 
-        # We run nix-darwin twice to test that it can create darwin-configuration correctly for us
-        # but we expect it to fail setting up /etc/nix/nix.conf
-        nix-shell -A installer || true
+        mkdir -p ~/.config/nix-darwin
+        cp modules/examples/simple.nix ~/.config/nix-darwin/configuration.nix
 
         nixConfHash=$(shasum -a 256 /etc/nix/nix.conf | cut -d ' ' -f 1)
         /usr/bin/sed -i.bak \
           "s/# programs.fish.enable = true;/nix.settings.access-tokens = [ \"github.com=\${{ secrets.GITHUB_TOKEN }}\" ]; environment.etc.\"nix\/nix.conf\".knownSha256Hashes = [ \"$nixConfHash\" ];/" \
-          ~/.nixpkgs/darwin-configuration.nix
+          ~/.config/nix-darwin/configuration.nix
 
-        nix-shell -A installer
-        nix-shell -A installer.check
+        nix-shell -A installer -I darwin-config=$HOME/.config/nix-darwin/configuration.nix
     - name: Build and activate default derivation
       run: |
         . /etc/static/bashrc

README.md

@@ -115,14 +115,18 @@ nix-darwin.lib.darwinSystem {
 <details>
 <summary>Channels</summary>
 
-### Installing
+### Step 1. Creating `configuration.nix`
+
+Copy the [simple](./modules/examples/simple.nix) example to `~/.config/nix-darwin/configuration.nix`.
+
+### Step 2. Installing `nix-darwin`
 
 ```bash
 nix-build https://github.com/LnL7/nix-darwin/archive/master.tar.gz -A installer
 ./result/bin/darwin-installer
 ```
 
-### Updating
+### Step 3. Updating `nix-darwin`
 
 The installer will configure a channel for this repository.
 
@@ -133,23 +137,6 @@ darwin-rebuild changelog
 
 > NOTE: If you are using Nix as a daemon service the channel for that will be owned by root.
 > Use `sudo -i nix-channel --update darwin` instead.
-
-### Example configuration
-
-Configuration lives in `~/.nixpkgs/darwin-configuration.nix`. Check out
-[modules/examples](https://github.com/LnL7/nix-darwin/tree/master/modules/examples) for some example configurations.
-
-```nix
-{ pkgs, ... }:
-{
-  # List packages installed in system profile. To search by name, run:
-  # $ nix-env -qaP | grep wget
-  environment.systemPackages =
-    [ pkgs.vim
-    ];
-}
-```
-
 </details>
 
 ## Documentation

modules/examples/simple.nix

@@ -7,9 +7,8 @@
     [ pkgs.vim
     ];
 
-  # Use a custom configuration.nix location.
-  # $ darwin-rebuild switch -I darwin-config=$HOME/.config/nixpkgs/darwin/configuration.nix
-  # environment.darwinConfig = "$HOME/.config/nixpkgs/darwin/configuration.nix";
+  # Use custom location for configuration.nix.
+  environment.darwinConfig = "$HOME/.config/nix-darwin/configuration.nix";
 
   # Enable alternative shell support in nix-darwin.
   # programs.fish.enable = true;

pkgs/darwin-installer/default.nix

@@ -47,25 +47,6 @@ stdenv.mkDerivation {
     echo >&2 "Installing nix-darwin..."
     echo >&2
 
-    config="$HOME/.nixpkgs/darwin-configuration.nix"
-    if ! test -f "$config"; then
-        echo "copying example configuration.nix" >&2
-        mkdir -p "$HOME/.nixpkgs"
-        cp "${../../modules/examples/simple.nix}" "$config"
-        chmod u+w "$config"
-    fi
-
-    # Skip when stdin is not a tty, eg.
-    # $ yes | darwin-installer
-    if test -t 0; then
-        read -p "Would you like to edit the default configuration.nix before starting? [y/N] " i
-        case "$i" in
-            y|Y)
-                PATH=$_PATH ''${EDITOR:-nano} "$config"
-                ;;
-        esac
-    fi
-
     i=y
     darwinPath=$(NIX_PATH=$HOME/.nix-defexpr/channels nix-instantiate --eval -E '<darwin>' 2> /dev/null) || true
     if ! test -e "$darwinPath"; then
@@ -81,13 +62,13 @@ stdenv.mkDerivation {
     fi
 
     export NIX_PATH=${nixPath}
-    system=$(nix-build '<darwin>' -I "darwin-config=$config" -A system --no-out-link --show-trace)
+    system=$(nix-build '<darwin>' -A system --no-out-link --show-trace)
 
     export PATH=$system/sw/bin:$PATH
-    darwin-rebuild "$action" -I "darwin-config=$config"
+    darwin-rebuild "$action"
 
     echo >&2
-    echo >&2 "    Open '$config' to get started."
+    echo >&2 "    Installation complete."
     echo >&2 "    See the README for more information: https://github.com/LnL7/nix-darwin/blob/master/README.md"
     echo >&2
     echo >&2 "    Please log out and log in again to make sure nix-darwin is properly loaded."