Migrate git setup to home-manager

This was previously done through custom dotfiles.

home.nix

@@ -36,6 +36,7 @@
     pkgs.litecli
     pkgs.mycli
     pkgs.mkcert
+    pkgs.tig
 
     # Writing
     pkgs.languagetool
@@ -44,6 +45,12 @@
     pkgs.vlc
   ];
 
+  programs = {
+    git = import ./home/programs/git.nix {
+      inherit pkgs;
+    };
+  };
+
   home.file.".myclirc".source = ./home/files/myclirc;
 
   services.dunst = import ./home/configurations/dunst.nix;

home/programs/git.nix

@@ -0,0 +1,113 @@
+{ pkgs }:
+
+{
+  enable = true;
+
+  userName = "Daniel Siepmann";
+  userEmail = "coding@daniel-siepmann.de";
+
+  signing = {
+    key = "15560EF4";
+    signByDefault = true;
+  };
+
+  aliases = {
+    c = "checkout";
+    ss = "show -s";
+
+    s = "status -s";
+    dc = "diff --cached";
+
+    sc = "switch -c";
+    st = "switch -t";
+
+    com = "commit";
+
+    ri = "rebase -i";
+    rc = "rebase --continue";
+
+    fap = "fetch --all --prune";
+    rh = "reset --hard";
+
+    lg = "log --graph --pretty=format:'%Cred%h%Creset %an: %s - %Creset %C(yellow)%d%Creset %Cgreen(%cr)%Creset' --abbrev-commit --date=relative";
+  };
+
+  ignores = [
+    # Some files which might be generated by system or tools
+    "*~"
+    "*.swp"
+    "*.swn"
+    "*.swo"
+    "*.orig"
+    "*.rej"
+    "*.pyc"
+    "*.bak"
+    "*/tags"
+    "/tags"
+    "*.~lock.*#"
+    # As I'm using Makefiles in many projects for my own confidence
+    "Makefile"
+
+    # Some generics which occur in some projects
+    "build/"
+    "logs/"
+
+    # PHP Specific
+    ".phpunit.result.cache"
+    "phpcs.xml"
+
+    # TYPO3 documentation specific
+    "Documentation-GENERATED-temp*/"
+  ];
+
+  extraConfig = {
+    advice = {
+      detachedHead = false;
+    };
+
+    branch = {
+      autosetuprebase = "always";
+    };
+
+    color = {
+      diff = "auto";
+      status = "auto";
+      branch = "auto";
+      interactive = "auto";
+      ui = "auto";
+    };
+
+    pager = {
+      branch = false;
+      show = false;
+      log = toString pkgs.less + "/bin/less";
+      diff = toString pkgs.less + "/bin/less";
+    };
+
+    grep = {
+      lineNumber = true;
+    };
+
+    help = {
+      autocorrect = 1;
+    };
+
+    push = {
+      default = "current";
+      gpgSign = "if-asked";
+    };
+
+    init = {
+      defaultBranch = "main";
+    };
+
+    diff = {
+      tool = toString pkgs.xxdiff + "/bin/xxdiff";
+    };
+
+    merge = {
+      ff = true;
+      tool = "nvimdiff";
+    };
+  };
+}