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Installation Guide

Complete installation guide for Code Indexer (CIDX) across all platforms and scenarios.

Table of Contents

Prerequisites

System Requirements

  • Python: Version 3.9 or higher
  • RAM: 4GB minimum (8GB+ recommended for large codebases)
  • Disk Space: 500MB for installation + index storage (varies by codebase size)
  • Network: Internet connection for VoyageAI API (semantic search)

Verify Python Version

python3 --version
# Should output: Python 3.9.x or higher

If Python 3.9+ is not installed:

  • Ubuntu/Debian: sudo apt install python3.11
  • macOS: brew install python@3.11
  • Windows: Download from python.org

Install pipx (Recommended)

pipx isolates CIDX in its own environment and makes it globally available:

# Ubuntu/Debian
sudo apt install pipx
pipx ensurepath

# macOS
brew install pipx
pipx ensurepath

# Any platform with pip
python3 -m pip install --user pipx
python3 -m pipx ensurepath

After installation, restart your shell to ensure PATH is updated.

Installation Methods

pipx (Recommended)

Best for most users - provides isolated environment with global command access:

# Install the package
pipx install git+https://github.com/jsbattig/code-indexer.git@v8.4.46

# Verify installation
cidx --version

[Corrected by fact-checker: Removed cidx setup-global-registry command - this is DEPRECATED as of v8.0 container cleanup. The command still exists but displays deprecation notice stating "deprecated - no longer needed" since filesystem backend doesn't require port coordination or registry setup. See cli.py:setup_global_registry function.]

If cidx command is not found after installation:

# Add pipx bin directory to PATH
export PATH="$HOME/.local/bin:$PATH"

# Make permanent (add to ~/.bashrc or ~/.zshrc)
echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc

pip with Virtual Environment

For users who prefer traditional virtual environments:

# Create virtual environment
python3 -m venv code-indexer-env

# Activate environment
source code-indexer-env/bin/activate  # Linux/macOS
# OR
code-indexer-env\Scripts\activate     # Windows

# Install CIDX
pip install git+https://github.com/jsbattig/code-indexer.git@v8.4.46

# Verify installation
cidx --version

Note: You must activate the virtual environment each time before using CIDX:

source code-indexer-env/bin/activate

Development Installation

For contributors or those who want to modify CIDX:

# Clone repository
git clone https://github.com/jsbattig/code-indexer.git
cd code-indexer

# Install in editable mode with dev dependencies
pip install -e ".[dev]"

# Verify installation
cidx --version

# Run tests to ensure everything works
./ci-github.sh

Development dependencies include:

  • pytest (testing framework)
  • ruff (linter)
  • black (code formatter)
  • mypy (type checker)

Environment Setup

CIDX requires VoyageAI API key for semantic search functionality.

1. Get VoyageAI API Key

  1. Sign up at https://www.voyageai.com/
  2. Navigate to API Keys section
  3. Generate a new API key
  4. Copy the key (starts with pa-...)

2. Configure API Key

Option A: Environment Variable (Recommended)

# Add to your shell profile (~/.bashrc, ~/.zshrc, etc.)
export VOYAGE_API_KEY="your-api-key-here"

# Reload shell configuration
source ~/.bashrc  # or ~/.zshrc

Option B: .env File (Per-Project)

# In your project directory
echo 'VOYAGE_API_KEY=your-api-key-here' > .env.local

[Corrected by fact-checker: Changed .env.local format from export VOYAGE_API_KEY="..." to VOYAGE_API_KEY=... (no export statement). Note: CIDX does NOT automatically load .env.local files. The .env.local file is referenced in mcpb/bridge.py for the MCP bridge component only, not for CLI operations. For CLI usage, set VOYAGE_API_KEY via shell environment variable as shown in Option A.]

Option C: System-Wide Configuration

# Add to your shell profile for persistent environment variable
echo 'export VOYAGE_API_KEY="your-api-key-here"' >> ~/.bashrc
source ~/.bashrc

[Corrected by fact-checker: Removed ~/.config/cidx/config.env reference - this directory/file does NOT exist in CIDX implementation. There is no code in src/code_indexer/ that reads from ~/.config/cidx/. The correct system-wide approach is to add VOYAGE_API_KEY to shell profile (.bashrc, .zshrc, etc.) as shown in Option A and this corrected Option C.]

3. Verify API Key Setup

# Check if environment variable is set
echo $VOYAGE_API_KEY

# Should output your API key

Global Registry Setup (DEPRECATED - No Longer Required)

[Corrected by fact-checker: This entire section describes a DEPRECATED feature. The cidx setup-global-registry command is marked as "deprecated - no longer needed" in cli.py since v8.0 container cleanup (Story #506). The filesystem backend doesn't require port coordination or global registry setup.]

Important: You can skip this section entirely. CIDX v8.0+ uses filesystem-based storage that doesn't require a global registry.

The ~/.code-indexer/ directory is still used by CIDX server mode for storing golden repositories and user data, but does NOT require manual setup via cidx setup-global-registry command. The directory is created automatically when needed.

Verification

Basic Verification

# 1. Check version
cidx --version
# Output: code-indexer, version 8.4.46

# 2. Check help
cidx --help
# Should display command list

# 3. Verify API key
echo $VOYAGE_API_KEY
# Should display your key

Full Verification (Test Indexing)

# Navigate to a small test project
cd /path/to/test/project

# Initialize CIDX
cidx init

# Index the project
cidx index

# Test semantic search
cidx query "your search term" --limit 5

# Cleanup
cidx clean-data

If all steps complete without errors, installation is successful!

Platform-Specific Notes

Linux (Ubuntu/Debian)

Additional dependencies for SCIP indexing:

# Java projects
sudo apt install openjdk-17-jdk

# Node.js projects
sudo apt install nodejs npm

# Python projects (already have Python)

PATH issues: If cidx not found after pipx install:

pipx ensurepath
# Restart shell

macOS

Homebrew recommended for dependencies:

# Java projects
brew install openjdk@17

# Node.js projects
brew install node

# Python projects (already have Python via Homebrew)

Apple Silicon (M1/M2/M3) Notes:

  • Use ARM-native Python (brew install python)
  • VoyageAI API works natively, no Rosetta needed

Windows

Use PowerShell or Windows Terminal (not CMD):

# Install Python from python.org
# Ensure "Add Python to PATH" is checked during installation

# Install pipx
python -m pip install --user pipx
python -m pipx ensurepath

# Restart terminal

# Install CIDX
pipx install git+https://github.com/jsbattig/code-indexer.git@v8.4.46

Path issues: If cidx not found:

# Add to PATH manually
$env:Path += ";$env:USERPROFILE\.local\bin"

# Make permanent via System Environment Variables

SCIP indexing: Install required SDKs:

Upgrading

Upgrade to Latest Version

pipx installation:

pipx upgrade code-indexer

pip installation:

# Activate virtual environment first
source code-indexer-env/bin/activate

# Upgrade
pip install --upgrade git+https://github.com/jsbattig/code-indexer.git@master

Upgrade to Specific Version

# pipx
pipx install --force git+https://github.com/jsbattig/code-indexer.git@v8.4.46

# pip
pip install --force-reinstall git+https://github.com/jsbattig/code-indexer.git@v8.4.46

Post-Upgrade Steps

After upgrading, you may need to reindex projects:

# Navigate to project
cd /path/to/project

# Clear old indexes
cidx clean-data

# Reindex with new version
cidx index

Migration guides: See Migration Guide for major version upgrades.

Troubleshooting

Command Not Found: cidx

Symptoms: bash: cidx: command not found

Solutions:

  1. Ensure pipx bin directory in PATH:

    export PATH="$HOME/.local/bin:$PATH"

  2. Verify installation:

    pipx list | grep code-indexer

  3. Reinstall:

    pipx uninstall code-indexer
pipx install git+https://github.com/jsbattig/code-indexer.git@v8.4.46

Python Version Too Old

Symptoms: ERROR: This package requires Python >=3.9

Solutions:

  1. Check Python version:

    python3 --version

  2. Install Python 3.9+:

    # Ubuntu/Debian
sudo apt install python3.11

# macOS
brew install python@3.11

  3. Use specific Python version:

    python3.11 -m pipx install git+https://github.com/jsbattig/code-indexer.git@v8.4.46

VoyageAI API Key Not Found

Symptoms: ERROR: VOYAGE_API_KEY environment variable not set

Solutions:

  1. Set environment variable:

    export VOYAGE_API_KEY="your-key-here"

  2. Add to shell profile:

    echo 'export VOYAGE_API_KEY="your-key-here"' >> ~/.bashrc
source ~/.bashrc

  3. Use .env file (MCP bridge only):

    echo 'VOYAGE_API_KEY=your-key-here' > .env.local

    Note: .env.local only works with CIDX MCP bridge, not with CLI commands.

Permission Denied Errors

Symptoms: Permission denied: '.code-indexer'

Solutions:

  1. Check directory permissions:

    ls -la .code-indexer

  2. Fix ownership:

    sudo chown -R $USER:$USER .code-indexer

  3. Fix permissions:

    chmod -R 755 .code-indexer

Installation Fails: Build Dependencies Missing

Symptoms: ERROR: Failed building wheel for [package]

Solutions:

  1. Ubuntu/Debian - Install build tools:

    sudo apt install build-essential python3-dev

  2. macOS - Install Xcode Command Line Tools:

    xcode-select --install

  3. Windows - Install Visual C++ Build Tools:

    • Download from Microsoft
    • Select "Desktop development with C++"

Global Registry Not Created (DEPRECATED Issue)

[Corrected by fact-checker: This troubleshooting section is obsolete. The cidx setup-global-registry command is deprecated since v8.0. CIDX no longer requires registry.json for normal CLI operations. The ~/.code-indexer/ directory is used by CIDX server mode and created automatically when needed.]

Note: If you see registry-related errors, you're likely using an outdated workflow or documentation. CIDX v8.0+ uses filesystem-based storage without requiring registry setup.

SCIP Indexing Fails

Symptoms: ERROR: No SCIP indexer found for language

Solutions:

  1. Install language-specific dependencies:

    # Java/Kotlin
sudo apt install openjdk-17-jdk  # Linux
brew install openjdk@17          # macOS

# TypeScript/JavaScript
sudo apt install nodejs npm      # Linux
brew install node                # macOS

# C#
# Install .NET SDK from microsoft.com

# Go
sudo apt install golang-go       # Linux
brew install go                  # macOS

  2. Verify indexer availability:

    cidx scip status

Uninstallation

Remove CIDX

pipx installation:

pipx uninstall code-indexer

pip installation:

# Activate virtual environment
source code-indexer-env/bin/activate

# Uninstall
pip uninstall code-indexer

# Remove virtual environment
deactivate
rm -rf code-indexer-env

Clean Up Data

# Remove global registry
rm -rf ~/.code-indexer

# Remove per-project indexes
cd /path/to/project
cidx clean-data  # Run before uninstalling
# OR manually
rm -rf .code-indexer

Complete Cleanup

# 1. Uninstall CIDX
pipx uninstall code-indexer

# 2. Remove global registry
rm -rf ~/.code-indexer

# 3. Remove environment variables (edit shell profile)
# Remove: export VOYAGE_API_KEY="..."

# 4. Remove .env files from projects
find . -name ".env.local" -type f -delete

Next Steps

After successful installation:

  1. Index your first project: Quick Start Guide
  2. Learn query syntax: Query Guide
  3. Explore SCIP: SCIP Code Intelligence
  4. Set up watch mode: Operating Modes

Getting Help