build-examples.yml

# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs

name: Build Examples

on:
  push:
    branches: ["main"]
  pull_request:
    # Only run if examples, langchain, core, or integration package code changes.
    paths:
      - 'examples/**'
      - 'langchain/**'
      - 'langchain-core/**'
      - 'libs/**/**'
  workflow_dispatch:  # Allows triggering the workflow manually in GitHub UI


# If another push to the same PR or branch happens while this workflow is still running,
# cancel the earlier run in favor of the next run.
#
# There's no point in testing an outdated version of the code. GitHub only allows
# a limited number of job runners to be active at the same time, so it's better to cancel
# pointless jobs early so that more useful jobs can run sooner.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Use Node.js 18.x
        uses: actions/setup-node@v3
        with:
          node-version: 18.x
      - name: Install dependencies
        run: yarn install --immutable
      - name: Build Core
        run: yarn turbo:command build --filter=@langchain/core
      - name: Build all except LangChain & Examples
        run: yarn turbo:command build --filter=!examples --filter=!langchain --filter=!core_docs --filter=!api_refs --filter=!create-langchain-integration
      - name: Build LangChain
        run: yarn turbo:command build --filter=langchain
      - name: Build examples
        run: yarn turbo:command build --filter=examples