OpenShell/.github/workflows/fern-docs-preview-build.yml at 8e56bca4433d0d7efea1991811fdf5318d2ca918 · NVIDIA/OpenShell · GitHub

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# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Workflow 1 of 2 for Fern doc previews.
#
# Collects the fern/ sources and PR metadata from the (possibly untrusted) PR
# branch and uploads them as an artifact. No secrets are used here, so this is
# safe to run on fork PRs via the regular pull_request trigger.
#
# The companion workflow (fern-docs-preview-comment.yml) picks up the artifact,
# builds the preview with DOCS_FERN_TOKEN, and posts the PR comment.

name: "Preview Fern Docs: Build"

on:
  pull_request:
    paths:
      - 'fern/**'
      - '.github/workflows/fern-docs-preview-build.yml'

permissions:
  contents: read

jobs:
  collect:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout PR
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          fetch-depth: 0

      - name: Save PR metadata
        env:
          PR_NUMBER: ${{ github.event.pull_request.number }}
          HEAD_REF: ${{ github.head_ref }}
          BASE_REF: ${{ github.base_ref }}
        run: |
          mkdir -p .preview-metadata
          echo "$PR_NUMBER" > .preview-metadata/pr_number
          echo "$HEAD_REF" > .preview-metadata/head_ref
          git diff --name-only "origin/${BASE_REF}...HEAD" -- '*.mdx' > .preview-metadata/changed_mdx_files 2>/dev/null || true

      - name: Upload fern sources and metadata
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: fern-preview
          path: |
            fern/
            .preview-metadata/
          retention-days: 1