From 329f48882efad923b85b19c0c86e42a25537e689 Mon Sep 17 00:00:00 2001
From: ItsDrike <itsdrike@protonmail.com>
Date: Thu, 4 Apr 2024 20:16:56 +0200
Subject: [PATCH] Add git configuration

---
 home/programs/terminal/default.nix           |  1 +
 home/programs/terminal/tools/default.nix     |  5 ++
 home/programs/terminal/tools/git/aliases.nix | 81 ++++++++++++++++++++
 home/programs/terminal/tools/git/default.nix | 58 ++++++++++++++
 home/programs/terminal/tools/git/gh.nix      | 16 ++++
 home/programs/terminal/tools/git/ignores.nix | 39 ++++++++++
 hosts/vbox_nix/default.nix                   |  1 +
 options/home/default.nix                     |  4 +
 options/home/git.nix                         | 18 +++++
 9 files changed, 223 insertions(+)
 create mode 100644 home/programs/terminal/tools/default.nix
 create mode 100644 home/programs/terminal/tools/git/aliases.nix
 create mode 100644 home/programs/terminal/tools/git/default.nix
 create mode 100644 home/programs/terminal/tools/git/gh.nix
 create mode 100644 home/programs/terminal/tools/git/ignores.nix
 create mode 100644 options/home/git.nix

diff --git a/home/programs/terminal/default.nix b/home/programs/terminal/default.nix
index 5159b60..5615862 100644
--- a/home/programs/terminal/default.nix
+++ b/home/programs/terminal/default.nix
@@ -1,5 +1,6 @@
 _: {
   imports = [
     ./shell
+    ./tools
   ];
 }
diff --git a/home/programs/terminal/tools/default.nix b/home/programs/terminal/tools/default.nix
new file mode 100644
index 0000000..42cb526
--- /dev/null
+++ b/home/programs/terminal/tools/default.nix
@@ -0,0 +1,5 @@
+_: {
+  imports = [
+    ./git
+  ];
+}
diff --git a/home/programs/terminal/tools/git/aliases.nix b/home/programs/terminal/tools/git/aliases.nix
new file mode 100644
index 0000000..b9968bf
--- /dev/null
+++ b/home/programs/terminal/tools/git/aliases.nix
@@ -0,0 +1,81 @@
+{
+  programs.git = {
+    aliases = {
+      quickclone = "clone --single-branch --depth=1";
+      bareclone = "!sh -c 'git clone --bare \"$0\" \"$1\"/.bare; echo \"gitdir: ./.bare\" > \"$1/.git\"'";
+      bareinit = "!sh -c 'git init --bare \"$0\"/.bare; echo \"gitdir: ./.bare\" > \"$0/.git\"'";
+      cleanup = "!default_branch=$(git remote show origin | awk '/HEAD branch/ {print $NF}'); git remote prune origin && git checkout -q $default_branch && git for-each-ref refs/heads/ '--format=%(refname:short)' | while read branch; do mergeBase=$(git merge-base $default_branch $branch) && [[ $(git cherry $default_branch $(git commit-tree $(git rev-parse $branch^{tree}) -p $mergeBase -m _)) == '-'* ]] && git branch -D $branch; done";
+
+      m = "merge";
+      f = "fetch";
+
+      p = "push";
+      pu = "!git push --set-upstream origin `git symbolic-ref --short HEAD`";
+      pf = "push --force";
+      pl = "pull";
+
+      s = "status --short --branch";
+      ss = "status";
+
+      ch = "checkout";
+      chb = "checkout -b";
+
+      undo = "reset --soft HEAD~";
+      redo = "reset HEAD@{1}";
+      unstage = "restore --staged";
+
+      c = "commit";
+      ca = "commit --ammend";
+      ci = "commit --interactive";
+      cm = "commit --message";
+      cv = "commit --verbose";
+
+      a = "add";
+      aa = "add --all";
+      ap = "add --patch";
+      au = "add --update";
+
+      d = "diff";
+      dc = "diff --cached";
+      ds = "diff --staged";
+      dw = "diff --word-diff";
+      dcm = "!sh -c 'git diff $0~ $0'";
+      linediff = "!sh -c 'git diff --unified=0 $1 $2 | grep -Po \"(?<=^\\+)(?!\\+\\+).*\" '";
+
+      b = "branch";
+      ba = "branch --all";
+      bd = "branch --delete";
+      bD = "branch --delete --force";
+      bm = "branch --move";
+      bM = "branch --move --force";
+      bb = "!~/.local/bin/scripts/cli/better-git-branch";
+
+      r = "rebase";
+      ri = "rebase -i";
+      rc = "rebase --continue";
+
+      l = "log --oneline --decorate --all --graph";
+      lp = "log --patch";
+      lo = "log --pretty=oneline --abbrev-commit --graph";
+      lg = "log --all --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --";
+      loog = "log --format=fuller --show-signature --all --color --decorate --graph";
+
+      make-patch = "diff --no-prefix --relative";
+
+      set-upstream = "!git branch --set-upstream-to=origin/`git symbolic-ref --short HEAD`";
+
+      staash = "stash --all";
+      stash-staged = "!sh -c 'git stash --keep-index; git stash push -m \"staged\" --keep-index; git stash pop stash@{1}'";
+
+      find-merge = "!sh -c 'commit=$0 && branch=\${1:-HEAD} && (git rev-list $commit..$branch --ancestry-path | cat -n; git rev-list $commit..$branch --first-parent | cat -n) | sort -k2 -s | uniq -f1 -d | sort -n | tail -1 | cut -f2'";
+      show-merge = "!sh -c 'merge=$(git find-merge $0 $1) && [ -n \"$merge\" ] && git show $merge'";
+
+      tracked-files = "ls-tree --full-tree --name-only -r HEAD";
+      tracked-text-files = "!git tracked-files | while IFS= read -r file; do mime_type=$(file -b --mime-type \"$file \"); [[ $mime_type == text/* ]] && echo \"$file \"; done";
+      total-lines = "!git tracked-text-files | xargs cat | wc -l";
+      total-files = "!git tracked-files | wc -l";
+      total-commits = "!git log --oneline | wc -l";
+      comitter-lines = "!git log --author=\"$1\" --pretty=tformat: --numstat | awk '{ add += $1; subs += $2; loc += $1 - $2 } END { printf \"added lines: %s, removed lines: %s, total lines: %s\\n\", add, subs, loc }' #";
+    };
+  };
+}
diff --git a/home/programs/terminal/tools/git/default.nix b/home/programs/terminal/tools/git/default.nix
new file mode 100644
index 0000000..3ffa9c2
--- /dev/null
+++ b/home/programs/terminal/tools/git/default.nix
@@ -0,0 +1,58 @@
+{ osConfig, pkgs, ... }:
+let
+  myGitConf = osConfig.myOptions.home-manager.git;
+in
+{
+  imports = [
+    ./gh.nix
+    ./ignores.nix
+    ./aliases.nix
+  ];
+
+  # TODO: Figure out how to manage gpg keys properly in nix/home-manager
+  # (right now, I'm importing my keys manually)
+
+  programs.git = {
+    enable = true;
+    package = pkgs.gitAndTools.gitFull;
+
+    userName = "ItsDrike";
+    userEmail = "itsdrike@protonmail.com";
+
+    signing = {
+      signByDefault = myGitConf.signing.enabled;
+      key = myGitConf.signing.key;
+    };
+
+    delta.enable = true;
+
+    extraConfig = {
+      init.defaultBranch = "main";
+      merge.conflictstyle = "diff3";
+      delta.line-numbers = true;
+
+      push = {
+        default = "current";
+        followTags = true;
+      };
+
+      url = {
+        "https://github.com/".insteadOf = "github:";
+        "ssh://git@github.com/".pushInsteadOf = "github:";
+        "https://gitlab.com/".insteadOf = "gitlab:";
+        "ssh://git@gitlab.com/".pushInsteadOf = "gitlab:";
+        "https://aur.archlinux.org/".insteadOf = "aur:";
+        "ssh://aur@aur.archlinux.org/".pushInsteadOf = "aur:";
+        "https://git.sr.ht/".insteadOf = "srht:";
+        "ssh://git@git.sr.ht/".pushInsteadOf = "srht:";
+        "https://codeberg.org/".insteadOf = "codeberg:";
+        "ssh://git@codeberg.org/".pushInsteadOf = "codeberg:";
+      };
+    };
+  };
+
+  home.packages = with pkgs; [
+    gist # Manage github gists
+    act # Run github actions locally
+  ];
+}
diff --git a/home/programs/terminal/tools/git/gh.nix b/home/programs/terminal/tools/git/gh.nix
new file mode 100644
index 0000000..f10dc7f
--- /dev/null
+++ b/home/programs/terminal/tools/git/gh.nix
@@ -0,0 +1,16 @@
+{ pkgs, ... }: {
+  programs.gh = {
+    enable = true;
+    gitCredentialHelper.enable = false;
+    extensions = with pkgs; [
+      gh-dash # dashboard with pull requess and issues
+      gh-eco # explore the ecosystem
+      gh-cal # contributions calendar terminal viewer
+      # TODO: Include meiji163/gh-notify
+    ];
+    settings = {
+      git_protocol = "ssh";
+      prompt = "enabled";
+    };
+  };
+}
diff --git a/home/programs/terminal/tools/git/ignores.nix b/home/programs/terminal/tools/git/ignores.nix
new file mode 100644
index 0000000..b18e5cc
--- /dev/null
+++ b/home/programs/terminal/tools/git/ignores.nix
@@ -0,0 +1,39 @@
+{
+  programs.git.ignores = [
+    # Python:
+    "__pycache__/"
+    "*.py[cod]"
+    "$py.class"
+    "venv"
+    ".venv"
+    ".pytest_cache"
+    ".mypy_cache"
+
+    # C
+    ".tags"
+    "tags"
+    "*~"
+    "*.o"
+    "*.so"
+    "*.cmake"
+    "CmakeCache.txt"
+    "CMakeFiles/"
+    "cmake-build-debug/"
+    "compile_commands.json"
+    ".ccls*"
+
+    # JavaScript + TypeScript
+    "node_modules/"
+
+    # Editors
+    ".vscode/"
+    ".idea/"
+    ".replit"
+    ".spyproject/"
+    ".spyderproject"
+    ".neoconf.json"
+
+    # Custom attributes for folders on Mac OS
+    ".DS_Store"
+  ];
+}
diff --git a/hosts/vbox_nix/default.nix b/hosts/vbox_nix/default.nix
index aedc8eb..8898eda 100644
--- a/hosts/vbox_nix/default.nix
+++ b/hosts/vbox_nix/default.nix
@@ -30,6 +30,7 @@
     home-manager = {
       enabled = true;
       stateVersion = "23.11";
+      git.signing.key = "FA2745890B7048C0";
     };
   };
 }
diff --git a/options/home/default.nix b/options/home/default.nix
index 616182d..2ed801c 100644
--- a/options/home/default.nix
+++ b/options/home/default.nix
@@ -1,6 +1,10 @@
 { lib, ... }: with lib; let
 in
 {
+  imports = [
+    ./git.nix
+  ];
+
   options.myOptions.home-manager = {
     enabled = mkOption {
       type = types.bool;
diff --git a/options/home/git.nix b/options/home/git.nix
new file mode 100644
index 0000000..9cff09b
--- /dev/null
+++ b/options/home/git.nix
@@ -0,0 +1,18 @@
+{ lib, ... }: with lib; let
+in
+{
+  options.myOptions.home-manager.git = {
+    signing = {
+      enabled = mkOption {
+        type = types.bool;
+        default = true;
+        description = "Should commits and tags be sgined by default?";
+      };
+      key = mkOption {
+        type = types.str;
+        default = "";
+        description = "The defaul GPG key fingerprint for signing.";
+      };
+    };
+  };
+}