integrate git-bug as issue tracker

docs/cli/git-bug.md

@@ -0,0 +1,26 @@
+git-bug
+=======
+
+rel: 8f34a17
+
+`git-bug` is used for issue tracking. The remote used is `origin` (git@github.com:rrvsh/tools).
+
+Aliases:
+- `gu`: runs `git push` and `git-bug push`.
+- `gy`: runs `git pull` and `git-bug pull`.
+
+A custom Starship module diffs `.git/refs/bugs/` against `.git/refs/remotes/origin/bugs/` and displays an 🐛 emoji when they are not in sync.
+
+The `ssh-add` user service is a dependency, because git-bug requires the ssh-agent to have the private key saved and can't use the private key file as a fallback like git.
+
+There was a bug in the nixpkgs derivation that resulted in fish shell completions being broken - fixed in [this PR](https://github.com/NixOS/nixpkgs/pull/529885).
+
+Note that when running `git-bug pull` on an existing remote onto a new machine, you will be unable to adopt the identity of the existing user. You will have to create a new user for the bootstrap, then git-bug pull, then adopt the existing user. Here are the commands for this:
+
+```sh
+git update-ref -d refs/identities/<new-id>
+rm -rf .git/git-bug/cache/identities .git/git-bug/indexes/identities
+git reflog expire --expire=now --expire-unreachable=now --all
+git gc --prune=now
+```
+See <https://github.com/git-bug/git-bug/issues/1003> for more information.

docs/services/ssh-add.md

@@ -0,0 +1,6 @@
+ssh-add
+=======
+
+rel: 8f34a17
+
+This runs as a user service to initialise the ssh-agent with my private key on login. This helps with `git-bug`, which requires the ssh agent to be configured instead of falling back to the private key file.

nix/profiles/development.nix

@@ -14,7 +14,26 @@ in
         pi-agent
         yazi
       ];
-      home-manager.sharedModules = [ cfg.modules.homeManager.profile-development ];
+      home-manager.sharedModules = [
+        cfg.modules.homeManager.profile-development
+        (
+          { config, ... }:
+          {
+            launchd.agents.ssh-add = {
+              enable = true;
+              config = {
+                ProgramArguments = [
+                  "/bin/sh"
+                  "-c"
+                  "ssh-add ${config.home.homeDirectory}/.ssh/id_ed25519"
+                ];
+                RunAtLoad = true;
+                KeepAlive = false;
+              };
+            };
+          }
+        )
+      ];
     };
     nixos.profile-development = {
       imports = with cfg.modules.nixos; [
@@ -27,18 +46,42 @@ in
         yazi
       ];
       networking.networkmanager.enable = true;
-      home-manager.sharedModules = [ cfg.modules.homeManager.profile-development ];
+      programs.ssh.startAgent = true;
+      home-manager.sharedModules = [
+        cfg.modules.homeManager.profile-development
+        (
+          { pkgs, config, ... }:
+          {
+            systemd.user.services.ssh-add = {
+              Unit = {
+                Description = "Add SSH key to agent on login";
+                Wants = [ "ssh-agent.service" ];
+                After = [ "ssh-agent.service" ];
+              };
+              Service = {
+                Type = "oneshot";
+                Environment = "SSH_AUTH_SOCK=%t/ssh-agent";
+                ExecStart = "${pkgs.openssh}/bin/ssh-add ${config.home.homeDirectory}/.ssh/id_ed25519";
+                RemainAfterExit = true;
+              };
+              Install.WantedBy = [ "default.target" ];
+            };
+          }
+        )
+      ];
     };
     homeManager.profile-development =
       { pkgs, ... }:
       {
         home.packages = with pkgs; [
+          git-bug
           ddgr
           gh
           ripgrep
         ];
         home.shellAliases = {
           cd = "echo \"Please use z\"";
+          gb = "git-bug termui";
           gc = "git commit";
           gcam = "git commit -am";
           gcamend = "git commit -a --amend --no-edit";
@@ -50,7 +93,8 @@ in
           gds = "git diff --staged";
           grc = "git rebase --continue";
           gs = "git status";
-          gu = "git push";
+          gu = "git push && git-bug push";
+          gy = "git pull && git-bug pull";
           v = "$EDITOR";
           e = "fish -c 'set -e var; set var (sk); test -n \"$var\"; and $EDITOR $var'";
         };
@@ -67,7 +111,7 @@ in
             settings = {
               add_newline = false;
               format = lib.strings.concatStrings [
-                "$hostname$directory$git_branch$git_status$git_state"
+                "$hostname$directory$git_branch$git_status$git_state\${custom.git-bug}"
                 "$fill"
                 "$nix_shell"
                 "$time"
@@ -88,6 +132,17 @@ in
               shlvl.disabled = false;
               username.disabled = true;
               fill.symbol = " ";
+              custom.git-bug = {
+                when = ''
+                  git for-each-ref --count=1 refs/bugs/ > /dev/null 2>&1 || exit 1
+                  l=$(git for-each-ref refs/bugs/ --format="%(objectname) %(refname:lstrip=2)" 2>/dev/null | sort)
+                  r=$(git for-each-ref refs/remotes/origin/bugs/ --format="%(objectname) %(refname:lstrip=4)" 2>/dev/null | sort)
+                  [ "$l" != "$r" ]
+                '';
+                command = "true";
+                format = "[ 🐛]($style)";
+                shell = [ "${lib.getExe pkgs.bash}" ];
+              };
             };
           };
           zoxide.enable = true;