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, 31 insertions, 0 deletions

diff --git a/shared/home-manager/zsh/default.nix b/shared/home-manager/zsh/default.nix
new file mode 100644
index 0000000..31796a9
--- /dev/null
+++ b/shared/home-manager/zsh/default.nix
@@ -0,0 +1,31 @@
+{config, ...}: {
+  imports = [
+    ./plugins.nix
+    ./editing.nix
+  ];
+
+  programs.zsh = {
+    enable = true;
+
+    # Feeble attempt at cleaning up home directory.
+    # TODO: dotDir = (pathRelativeTo config.xdg.configHome config.home) + "/zsh";
+    dotDir = ".config/zsh";
+    history.path = config.xdg.cacheHome + "/zsh/history";
+
+    initExtra = ''
+      set -o PROMPTSUBST
+      if [ -v NVIM -o -v VIM ]; then
+        # smol prompt
+        PROMPT='%# '
+      else
+        # loong looooong prooooompt – Nagāi Sakeru Gumi
+        PROMPT='%B%(2L.LVL%L .)%b%F{red}%(?..E%? )%f%F{93}%n%f@%F{35}%m%f%# '
+      fi
+      RPROMPT='%F{green}%$((COLUMNS/4))<...<%~%<<%f'
+
+      mkcd () {
+        mkdir "$1" && cd "$1"
+      }
+    '';
+  };
+}