catclip - conCATenate to CLIPboard

One command to copy your entire codebase to clipboard for AI assistants.

catclip src  # That's it.

Don't worry about accidentally copying that package-lock.json or creating a .gitignore before first run.

---

Features

• ⚡ Instant - Zero setup, smart defaults, copies 5000+ files in seconds
• 🔍 Fuzzy when needed - catclip components resolves directly when unique or with bundled fzf when multiple matches remain
• 📄 Near-instant filename lookup - catclip Footer.tsx or shorthands like Foo resolve exact file names across the repo almost instantly
• 🧩 Multiple targets - catclip README.md src docs in one run
• 🧾 File headers in output - each file is wrapped in <file path="path/to/file"> tags
• 🌳 Visual preview - Tree view with file count, size, and token estimate before copying
• 🙈 Git-aware - Respects .gitignore, filters by staged/unstaged/untracked, and can output diffs instead of full files
• 🎛️ Flexible ignores - --exclude "*.css" to skip, --include to authorize blocked files or directories, --only to narrow authorized targets safely
• 🛡️ Secret protection - Blocks .env, keys, credentials

---

Installation

Homebrew (Recommended)

brew tap tigreau/catclip && brew install catclip

Packaged installs are expected to include catclip plus private bundled rg and fzf helpers. Runtime does not fall back to arbitrary user PATH copies.

Direct install script (macOS / Linux)

curl -fsSL https://raw.githubusercontent.com/tigreau/catclip/main/install.sh | bash

If curl is not available:

wget -qO- https://raw.githubusercontent.com/tigreau/catclip/main/install.sh | bash

This installer downloads the latest prebuilt release bundle. It does not require Go.

Requirements: Clipboard tool (auto-detected)

• macOS: Built-in ✓
• Linux: xclip or wl-clipboard

Bundled with catclip:

• ripgrep for Git-visible file discovery and --contains
• fzf for fuzzy target resolution

Packaged installs always carry private bundled rg and fzf binaries. If one is missing, the install is incomplete and should be reinstalled instead of relying on a system fallback.

Manual install (Linux binary, no script)

Download the release archive that matches your architecture:

• catclip_linux_amd64.tar.gz for x86_64
• catclip_linux_arm64.tar.gz for aarch64 / arm64

PREFIX="${PREFIX:-$HOME/.local}"
BIN_DIR="$PREFIX/bin"
SHARE_DIR="$PREFIX/share/catclip"

mkdir -p "$BIN_DIR" "$SHARE_DIR"
tar -xzf catclip_linux_amd64.tar.gz
install -m 755 catclip "$BIN_DIR/catclip"
install -m 644 VERSION "$SHARE_DIR/VERSION"
install -d "$SHARE_DIR/bin"
install -m 755 bin/rg "$SHARE_DIR/bin/rg"
install -m 755 bin/fzf "$SHARE_DIR/bin/fzf"

If ~/.local/bin is not already on PATH, add it in your shell profile.

The global config (~/.config/catclip/.hiss) is created automatically on first run.

Build from source

git clone https://github.com/tigreau/catclip.git
cd catclip
./install.sh

When run from a cloned checkout, ./install.sh builds the checked-out source instead of downloading a release bundle. Go is only required for this source-install path. The source install also copies your current rg and fzf into the installed package under share/catclip/bin/.

Manual local build (developer-only, not a full packaged install):

go build ./cmd/catclip

This raw binary does not include the private bundled rg/fzf tools. For a normal local install, use ./install.sh.

Updating & Uninstalling

Use the section that matches how you installed catclip.

# Homebrew
brew upgrade catclip
brew uninstall catclip

# Direct script / local install
./uninstall.sh

# Manual binary install
rm -f "$HOME/.local/bin/catclip" \
      "$HOME/.local/share/catclip/VERSION" \
      "$HOME/.local/share/catclip/bin/rg" \
      "$HOME/.local/share/catclip/bin/fzf"

Quick Start

# Interactive target picking:
catclip                     # Pick targets, then type modifiers like --only "*.ts"

# Copy source directory:
catclip src

# Fuzzy search:
catclip components              # Resolves a unique 'components' dir directly; if multiple exist, fzf lets you choose

# Direct file target:
catclip Button.tsx              # Near-instant exact basename lookup anywhere
catclip Sidebar.tsx             # Another exact basename lookup

# Direct scoped shorthand:
catclip layout/Footer.tsx       # Resolves directly when unique

# File shorthand:
catclip btn.tsx                 # Resolves directly when unique, otherwise uses bundled fzf

# Exact nested path:
catclip src/components/ui/Button.tsx

# Multiple targets at once:
catclip README.md src docs Button.tsx

Plain targets stay independent: catclip src Button.tsx docs searches Button.tsx across the whole repo. Exact paths, exact basenames, and deterministic shorthand resolve directly; bundled fzf is only used when shorthand still has multiple viable matches.

More Examples

# Authorize a blocked directory for this run:
catclip --include tests

# Authorize a blocked file for this run:
catclip --include .env.production

# Authorize and narrow a blocked target safely:
catclip --include coverage --only "*.json"

# Output to screen (stdout) instead of clipboard:
catclip --print src

# Preview what would be copied (fast dry-run):
catclip src --preview

# Skip files (this run only):
catclip src --exclude "LoginForm.tsx"

# Only files containing a pattern (regex):
catclip src --contains "TODO"

# Only blocks around TODO matches (not full files):
catclip src --contains "TODO" --snippet

# Staged changes as unified diff (great for commit review):
catclip --staged --diff

# All changes as patches + architecture reference:
catclip --changed --diff --then src/api/reference.ts

Git-Aware Context

Changed files

catclip --changed              # All modified: staged + unstaged + untracked
catclip src --changed          # Scoped to src

Composable git filters

Use specific filters instead of --changed to narrow what you grab:

catclip --staged               # Files in the git index (staged for commit)
catclip --unstaged             # Tracked files with uncommitted modifications
catclip --untracked            # New files not yet tracked by git
catclip --staged --untracked   # Combine: staged + new, skip WIP edits

--changed is shorthand for all three. Each flag implies --changed automatically.

Diff output

Replace full file content with unified git patches:

catclip --changed --diff       # All modified files as patches
catclip --staged --diff        # Staged changes only — ideal for commit review
catclip --unstaged --diff      # WIP edits — what you're actively changing

Untracked files have no diff and are included with their full content. The tree preview shows [diff only] or [snippet only] on files with partial output.

Snippet extraction

With --contains, extract only the blank-line-bounded blocks around each match instead of the full file:

catclip src --contains "TODO" --snippet        # Blocks around each TODO
catclip . --contains "useState" --snippet      # React hook call-sites only

Scopes

Use --then to apply different modifiers to different targets:

catclip src --only "*.ts" --then tests --only "*.test.ts"
#   Scope 1: src — only TypeScript source files
#   Scope 2: tests — only test files

Overlapping scopes are allowed; final copied files are deduplicated by path. Without --then, all targets share the same modifiers:

catclip src lib --only "*.ts"   # Both filtered to .ts files

---

Configuration

catclip uses ~/.config/catclip/.hiss (gitignore-inspired syntax, created on first run) plus .gitignore in Git repos.

On first run, catclip creates the default .hiss and applies it immediately, so discovery is still safe from the start.

That means you usually do not need to explain ignores every run: .hiss already blocks things like .env.*, credentials.json, .idea/, .vscode/, tests/, fixtures/, coverage/, and lockfiles such as package-lock.json, Cargo.lock, and go.sum.

# Example .hiss file (trailing / = directory)
node_modules/
*.log
.env

Edit config:

catclip --hiss             # open ignore config in editor
catclip --hiss-reset       # restore defaults

For this run only:

catclip src --exclude "*.test.*"           # skip test files
catclip --include tests                    # authorize ignored tests/
catclip --include .env.production          # authorize a blocked file
catclip --include coverage --only "*.json" # authorize via include, then narrow

---

Options

Flag	Description
-h, --help	Show help
-y, --yes	Skip confirmation
-q, --quiet	Suppress normal stderr output; in non-preview runs this also skips tree rendering and confirmation
-v, --verbose	Show phase timings and debug info
--exclude GLOBS	Add skip rules this run (comma-separated; trailing / = directory)
-p, --print	Output to screen (stdout) instead of clipboard
--hiss	Open ignore config in editor
-t, --no-tree	Skip tree rendering
--hiss-reset	Restore default ignore config
--only GLOB	Include only files matching shell glob (OR across repeats)
--changed	All modified files: staged + unstaged + untracked (requires Git)
--staged	Only staged files (git index)
--unstaged	Only unstaged tracked modifications
--untracked	Only new untracked files
--diff	Emit unified diff instead of full file (requires a change-selection flag)
--contains PATTERN	Only files whose contents match regex pattern
--snippet	With --contains: emit only matched blocks (blank-line bounded)
--then	Start a new scope (separate targets with different modifiers)
--preview	Show file tree and token count without copying
--include QUERY	Authorize an exact ignored target or browse ignored files/dirs for this scope

Full docs: catclip --help

---

Troubleshooting

No clipboard tool found

Install for your platform:

# Ubuntu/Debian
sudo apt install xclip  # or wl-clipboard for Wayland

# Fedora
sudo dnf install xclip # or wl-clipboard for Wayland

# Arch
sudo pacman -S xclip # or wl-clipboard for Wayland

Or output to screen (stdout): catclip --print src > code.txt

Directory ignored

Check: catclip --hiss Include this run: use --include, optionally with --only to narrow Remove permanently: catclip --hiss (delete the line from the config)

---

Contributing

PRs welcome! Keep changes portable across macOS and Linux, and preserve CLI/output parity.

1. Fork & clone
2. Create branch: git checkout -b feature/name
3. Submit PR