upstream-mattermost/.github/actions/webapp-setup/action.yml

name: "Web app setup"
description: "Set up NPM and dependencies"

inputs:
  read-only:
    description: "Restore from cache without saving"
    required: false
    default: "false"

runs:
  using: "composite"
  steps:
    - name: ci/setup-node
      uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
      with:
        node-version-file: ".nvmrc"
    - name: ci/cache-node-modules
      if: inputs.read-only != 'true'
      uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
      id: cache-node-modules-rw
      with:
        path: |
          webapp/node_modules
          webapp/channels/node_modules
          webapp/platform/client/node_modules
          webapp/platform/components/node_modules
          webapp/platform/shared/node_modules
          webapp/platform/types/node_modules
        key: node-modules-${{ runner.os }}-${{ hashFiles('webapp/package-lock.json') }}
        # fall back to most recent cache for this OS if package-lock.json changed
        restore-keys: |
          node-modules-${{ runner.os }}-
    - name: ci/restore-node-modules
      if: inputs.read-only == 'true'
      uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
      id: cache-node-modules-ro
      with:
        path: |
          webapp/node_modules
          webapp/channels/node_modules
          webapp/platform/client/node_modules
          webapp/platform/components/node_modules
          webapp/platform/shared/node_modules
          webapp/platform/types/node_modules
        key: node-modules-${{ runner.os }}-${{ hashFiles('webapp/package-lock.json') }}
        # fall back to most recent cache for this OS if package-lock.json changed
        restore-keys: |
          node-modules-${{ runner.os }}-
    - name: ci/resolve-cache-hit
      id: cache-hit
      shell: bash
      run: |
        echo "cache-hit=${{ steps.cache-node-modules-rw.outputs.cache-hit || steps.cache-node-modules-ro.outputs.cache-hit }}" >> $GITHUB_OUTPUT
    - name: ci/get-node-modules
      if: steps.cache-hit.outputs.cache-hit != 'true'
      shell: bash
      working-directory: webapp
      run: |
        make node_modules
    - name: ci/build-platform-packages
      # These are built automatically when dependencies are installed, but they aren't cached properly, so we need to
      # manually build them when the cache is hit. They aren't worth caching because they have too many dependencies.
      if: steps.cache-hit.outputs.cache-hit == 'true'
      shell: bash
      working-directory: webapp
      run: |
        npm run postinstall