Move to a profile-based configuration where common

This patch makes it so common configuration is now located in shared/
and each host basically just becomes a bunch of import statements.

The exception here is host-specific configuration like the `*.linus.onl`
that live inside `hosts/ahmed/`.

Specifically I have:

- moved common configuration `shared/{nixos,home-manager,nix-darwin}`.
- moved `hosts/common.nix` to `shared/nixos/common-{nix,shell}-settings.nix`.
- split `hosts/muhammed/{dev-utils,neovim}` into per-language
  configuration.

This patch was done in preparation for the arrival of a new host, which
will need to share a lot of configuration with Muhammed.

1 files changed, 34 insertions, 0 deletions

diff --git a/shared/home-manager/shell-utils/default.nix b/shared/home-manager/shell-utils/default.nix
new file mode 100644
index 0000000..8635ceb
--- /dev/null
+++ b/shared/home-manager/shell-utils/default.nix
@@ -0,0 +1,34 @@
+# This module adds some common shell utilities to my home managed environment.
+{pkgs, ...}: let
+  isLinux = pkgs.stdenv.isLinux;
+  isDarwin = pkgs.stdenv.isDarwin;
+in {
+  home.packages = with pkgs;
+    [
+      human-sleep
+      ripgrep
+      jc
+      jq
+      nowrap
+      echoargs
+    ]
+    ++ lib.optionals isLinux [
+      file # File is not included in NixOS, but *is* included in Darwin.
+    ]
+    ++ lib.optionals isDarwin [
+      pbv
+      trash
+      disable-sleep
+
+      # Unlike the `stat` command on Linux (from coreutils or whatever), OSX's
+      # `stat` does not automatically use the nicer format when stdout is a
+      # sterminal.
+      (pkgs.writeShellScriptBin "stat" ''
+        if [ -t 1 ]; then
+          /usr/bin/stat -x "$@"
+        else
+          /usr/bin/stat "$@"
+        fi
+      '')
+    ];
+}