🚀 kapral18/dotfiles: An Operator's Manual

This is not your regular collection of settings; it's a cohesive, highly-opinionated, and continuously evolving development ecosystem, meticulously crafted for macOS. It's a testament to the power of a keyboard-centric workflow, intelligent automation, and deep tool integration.

🛠️ Installation

1. Install 1Password: The entire setup hinges on the 1Password CLI and its SSH agent for managing secrets and identities.

2. Initialize Chezmoi: This single command will bootstrap the entire environment.

   ```bash sh -c "$(curl -fsLS get.chezmoi.io/lb)" -- init --apply kapral18
   ```
   

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🏛️ Chezmoi & ASDF

This setup's power comes from the deep integration between Chezmoi for management and ASDF for runtime versioning.

Chezmoi: The Conductor

Chezmoi is more than a dotfile symlinker; it's the brain of the operation, using templates and scripts to build a configuration tailored to the specific machine.

• Conditional Logic (.isWork): Many files are templates (*.tmpl). They use a {{ .isWork }} variable to conditionally include or exclude configurations. This is how the setup seamlessly manages different Git identities, SSH keys, and even installed ASDF plugins for personal vs. work machines.
• External Tools & Scripts: Chezmoi manages a ~/bin directory of custom scripts. The executable_ prefix in a filename tells Chezmoi to set the executable bit, making these scripts instantly available in the PATH.
• Automated Setup Scripts: The apply-app-icons script is a perfect example. It's a shell script template that uses yq to parse a YAML definition (app_icons/icon_mapping.yaml) and the fileicon utility to apply beautiful custom icons to applications in /Applications. This entire customization is applied automatically with chezmoi apply.

ASDF: The Universal Version Manager

ASDF is used to manage versions of nearly every tool and language, ensuring reproducible environments.

• Declarative Plugin Management (asdf_plugins.tmpl): The list of ASDF plugins is not static; it's a Chezmoi template. This allows for conditionally installing plugins (like lua) only in a personal environment.
• Declarative Versioning (.tool-versions.tmpl): The .tool-versions file, the source of truth for what version of a tool to use, is also a template. This allows for different tool versions between environments if needed.
• Automatic Version Switching: The shell configuration files (config.fish, .zshrc, etc.) are set up to initialize ASDF. Thanks to ASDF's shims and the .tool-versions file, simply cd-ing into a project directory will automatically make the correct versions of Node.js, Ruby, Go, etc., available in your shell. No manual switching is ever required.

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🐚 The King of Shells: Fish

The primary shell is Fish, but Zsh and Bash are also fully configured for consistency.

🌳 Advanced Git Worktree Management (worktree.fish)

This is the crown jewel of the shell environment, turning Git's powerful but clunky worktree feature into a seamless, everyday tool.

• add_worktree <branch> [base_branch]: An incredibly smart function that handles numerous scenarios:

  • Creates a worktree from an existing local branch.
  • Creates a worktree from a remote branch on origin or upstream.
  • Handles branches from forks (e.g., add_worktree some-user/feature-branch).
  • Creates a new branch from HEAD if the branch doesn't exist anywhere.
  • Organizes worktrees by creating nested directories for branches with slashes (e.g., feature/new-ui).

• get_pr_worktrees <pr_numbers_or_search>: A massive time-saver. Type a PR number or search term, and it will:

  1. Use fzf to let you select the exact PR with a rich preview.
  2. Fetch PR details from the GitHub API.
  3. Add the contributor's fork as a temporary remote.
  4. Create a worktree for the PR's branch.

• remove_worktrees: An fzf-powered interactive worktrees remover that:

  1. Removes each selected worktree directory.
  2. Deletes the associated local branch.
  3. Cleans up the remote: If the worktree was from a fork, it removes the temporary remote if no other worktrees are using it.
  4. Cleans up the filesystem: Removes any empty parent directories.
  5. Removes the path from zoxide's database.

• Tmux Integration: The worktree functions are tightly integrated with Tmux. A new, named Tmux session is created when a worktree is added and killed when it's removed, making context-switching effortless.

🤖 Custom Functions & Utilities

• check-backport-progress (~/bin): A powerful script for repository maintainers. It uses the gh CLI to find PRs with a specific label (e.g., "Critical Fix") and checks if they have been correctly backported to release branches and if open PRs have the required backport labels.
• tmux-lowfi (~/bin): A clever script that controls a lowfi music player running inside a dedicated, detached tmux session. You can play, pause, and skip tracks from any terminal window without interrupting your workflow.
• pdf-diff (~/bin): A visual diff tool for PDFs. It uses ImageMagick to render two PDFs as images and composites them, highlighting all differences in red.
• cp_files_for_llm (fish/functions): Recursively finds all text files in a directory, concatenates their contents (with file headers), and copies it to the clipboard, ready for pasting into an LLM.
• GitHub PR Management (gh.fish): Functions to bulk-disable/enable auto-merge on PRs, useful for managing release branches.

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🔐 Git & 1Password

The Git configuration is a masterclass in efficiency, safety, and identity management.

The 1Password SSH Identity Trick (.gitconfig.tmpl)

This is a game-changing solution for managing multiple Git identities (e.g., personal and work) on the same machine securely and automatically.

How it works:

1. The global .gitconfig sets an sshCommand override: sshCommand = ssh -o IdentitiesOnly=yes -o IdentityFile="~/.ssh/primary_public_key.pub"
2. Crucially, IdentityFile points to the public key. 1Password's SSH agent intercepts this and uses the corresponding private key from the vault for signing.
3. A conditional include, [includeIf "gitdir:~/work/"], loads a separate .gitconfig for work projects.
4. The work-specific .gitconfig overrides the sshCommand again, this time pointing to the work public key.

The result: Git automatically uses the correct SSH key for signing and authentication based on the directory you're in, all without exposing private keys on disk or juggling complex ~/.ssh/config files. It's secure, seamless, and fully automated.

Git Aliases & Smarter Defaults

• Powerful Aliases:
  • git wtgrab <worktree_path>: "Grabs" uncommitted changes from another worktree by creating a diff, resetting the source worktree, and applying the diff to your current one.
  • git squash <n>: An interactive one-liner to squash the last n commits, pre-filling the new commit message with the old ones.
  • git u: Your daily driver. A single command to fetch, pull with rebase, and purge old, merged branches.
  • git hide/unhide <file>: Uses update-index --assume-unchanged to tell Git to ignore changes to a tracked file, perfect for local config overrides.
• Smarter Defaults:
  • rerere (reuse recorded resolution) is enabled to make resolving repeated merge conflicts automatic.
  • rebase.autoSquash = true makes git rebase -i automatically handle fixup! and squash! commits.
  • rebase.updateRefs = true makes rebasing stacked branches much safer.
  • The superior histogram diff algorithm and zdiff3 conflict style are defaults.
  • feature.manyFiles = true: Opts into a newer, faster index format for repositories with a large number of files.

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💻 Terminals & Multiplexers

Tmux: The Supercharged Multiplexer (tmux.conf)

The Tmux setup is designed for a seamless, keyboard-driven experience that integrates perfectly with Neovim.

• Ergonomic Prefix: The prefix is remapped from C-b to the more accessible C-Space.
• Plugin-Powered Workflow:
  • tpm: The plugin manager itself.
  • tmux-resurrect & tmux-continuum: Your session is automatically saved every 15 minutes and restored on startup. Never lose your layout again.
  • tmux-pain-control: Provides easy, repeatable keybindings for resizing and swapping panes.
  • tmux-sessionist: A powerful session manager for quickly switching between projects.
  • tmux-fzf-url: A killer feature. Press a key to scan your entire scrollback buffer for URLs and open one in your browser using fzf.
  • tmux-theme-catppuccin: Provides the beautiful, consistent theme.
• Neovim Passthrough: Keybindings like Ctrl-Shift-h/j/k/l are configured to be passed through Tmux directly to the running application, allowing for seamless window resizing and navigation inside Neovim without conflicting with Tmux's own keys.
• Vi Mode: Pane navigation and copy mode use Vi keybindings for consistency with Neovim.

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💎 Neovim: The IDE as a Force Multiplier

This is a heavily customized LazyVim setup, transformed into a bespoke IDE.

✨ UI & User Experience

• The Dynamic Winbar (options.lua): A custom-built marvel that displays the truncated path of the current file relative to the project root, ensuring you always know where you are without cluttering the bufferline.
• The Supercharged Tab Key (tab-behavior.lua): A context-aware powerhouse that accepts Copilot suggestions, jumps through snippets, and tabs out of brackets/quotes.
• Minimalist Code View: Long, noisy className attributes are concealed to a single … character.
• Custom Keymaps (keymaps.lua): jk is mapped to <ESC>, <A-j/k> jumps 10 lines, and <C-A-j/k> moves lines up and down.

🧠 Development & LSP Power-ups

• Interactive Filtered LSP (fzf-filters-lsp.lua): A killer feature! When searching for definitions or references, you get an interactive prompt to filter out irrelevant files (tests, node_modules) and content (imports). It even displays the file's CODEOWNERS in the results!
• Advanced Jest Runner (run-jest-in-split.lua): A complete testing suite that can run the specific describe/it block your cursor is in, handle parameterized tests, run in debug mode, and update snapshots.
• AI-Powered Commits (summarize-commit.lua): Generate a conventional commit message from your staged changes using Ollama or Cloudflare AI with a single keypress.
• TypeScript Refactoring (ts-move-exports.lua): A custom tool to select a block of exported code, move it to a new file, and automatically update all import paths across the project.
• Source/Test Switching (switch-src-test.lua): A smart <C-^> mapping to instantly jump between a source file and its corresponding test file.

🛠️ Project & File Utilities

• LargeFiles Command: Finds files in your project that exceed a certain line count.
• CpFromDownloads Command: A Neo-tree helper to quickly construct a cp command from your ~/Downloads folder.
• owner-code-search.lua: Custom commands to search only within files owned by a specific team, as defined in CODEOWNERS.
• show-file-owner.lua: A quick command to display the owner of the current file.

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🖥️ macOS Automation: Hammerspoon & Beyond

• Hammerspoon for Total Control:
  • gridmouse.lua: A complete, Vi-like mouse control system. Activate it and use h/j/k/l to move the mouse, or enter Grid Mode to jump the cursor to precise screen locations with just a few keystrokes.
  • Window Management (window.lua): Simple, fast hotkeys (Hyper + h/j/k/l/m) to snap windows to half/full screen positions.
• Custom App Icons (apply-app-icons): A script that applies beautiful custom icons to your applications for a clean, consistent look.