GitHub Action and scripts to set up PostgreSQL with pgvector extension for vector similarity search.

• 🚀 Quick setup of PostgreSQL with pgvector extension
• 🔄 Supports both GitHub Actions and local installation
• 🛠️ Customizable PostgreSQL and pgvector versions
• 🔐 Secure password authentication
• 🌐 Cross-platform support: Ubuntu, Windows (MSYS2), and macOS
• 🏗️ Builds pgvector from source for maximum compatibility

The following table shows the compatibility matrix for different PostgreSQL versions and platforms:

steps:
- uses: cpunion/setup-pgvector@main
  with:
    postgres-version: '17'
    postgres-user: 'myuser'
    postgres-password: 'mypassword'
    postgres-db: 'mydb'

- name: Test pgvector
  env:
    PGPASSWORD: mypassword
  run: |
    psql -h localhost -U myuser -d mydb -c 'CREATE EXTENSION vector;'

# Ubuntu
curl -fsSL https://raw.githubusercontent.com/cpunion/setup-pgvector/main/scripts/install-ubuntu.sh | bash

# macOS
curl -fsSL https://raw.githubusercontent.com/cpunion/setup-pgvector/main/scripts/install-macos.sh | bash

# Windows (MSYS2)
curl -fsSL https://raw.githubusercontent.com/cpunion/setup-pgvector/main/scripts/install-windows.sh | bash

With custom parameters:

# Format: curl ... | bash -s [PG_VERSION] [PGVECTOR_VERSION] [PGUSER] [PGPASSWORD] [PGDATABASE]
curl -fsSL https://raw.githubusercontent.com/cpunion/setup-pgvector/main/scripts/install-ubuntu.sh | bash -s 17 0.8.0 myuser mypassword mydb

# Ubuntu
./scripts/install-ubuntu.sh

# macOS
./scripts/install-macos.sh

# Windows (MSYS2)
./scripts/install-windows.sh

• Ubuntu: No additional requirements
• Windows: MSYS2 environment
• macOS: Homebrew
• Git (for building pgvector)

steps:
- uses: cpunion/setup-pgvector@main
  with:
    # PostgreSQL version to install (default: 17)
    postgres-version: '17'
    # pgvector version to install (default: 0.8.0)
    pgvector-version: '0.8.0'
    # PostgreSQL user to create (default: postgres)
    postgres-user: 'myuser'
    # Password for the PostgreSQL user (default: postgres)
    postgres-password: 'mypassword'
    # Database to create (default: postgres)
    postgres-db: 'mydb'

- name: Test pgvector
  env:
    PGPASSWORD: mypassword
  run: |
    psql -h localhost -U myuser -d mydb -c 'CREATE EXTENSION vector;'
    psql -h localhost -U myuser -d mydb -c 'CREATE TABLE items (id bigserial PRIMARY KEY, embedding vector(3));'
    psql -h localhost -U myuser -d mydb -c "INSERT INTO items (embedding) VALUES ('[1,2,3]');"
    psql -h localhost -U myuser -d mydb -c 'SELECT * FROM items;'

All installation scripts accept the following parameters:

1. PG_VERSION (default: 17) - PostgreSQL version to install
2. PGVECTOR_VERSION (default: 0.8.0) - pgvector version to install
3. PGUSER (default: postgres) - PostgreSQL user to create
4. PGPASSWORD (default: postgres) - Password for the PostgreSQL user
5. PGDATABASE (default: postgres) - Database to create

After installation, you can connect to PostgreSQL using:

# Using password from environment variable
export PGPASSWORD=mypassword
psql -h localhost -U myuser -d mydb

# Or using password prompt
psql -h localhost -U myuser -d mydb

• The scripts will install PostgreSQL if not already installed
• The scripts will create the specified user and database if they don't exist
• The scripts will build and install pgvector from source
• All connections are configured to use password authentication

MIT