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, 25 insertions, 0 deletions

diff --git a/shared/home-manager/git/aliases.nix b/shared/home-manager/git/aliases.nix
new file mode 100644
index 0000000..03e586c
--- /dev/null
+++ b/shared/home-manager/git/aliases.nix
@@ -0,0 +1,25 @@
+# This module defines my personal git aliases. Some of these are
+# pseudo-subcommands which are easier to remember while others simply save me
+# some keystrokes.
+{...}: {
+  programs.git.aliases = {
+    unstage = "restore --staged"; # remove file from staging area
+    undo = "reset --soft HEAD~"; # undo last commit
+  };
+
+  home.shellAliases = {
+    gs = "git status";
+    gd = "git diff --";
+    gl = "git log --oneline HEAD~10..HEAD --";
+
+    gc = "git commit";
+    gcp = "git commit --patch";
+    gf = "git commit --amend --no-edit --";
+    gfp = "git commit --amend --no-edit --patch --";
+
+    ga = "git add --";
+    gan = "git add -N";
+    gap = "git add --patch";
+    gu = "git unstage";
+  };
+}