nightly-emscripten.yml

name: Emscripten nightly build + push to solc-bin

on:
  schedule:
    # Run once a day, at midnight
    - cron: '0 0 * * *'

env:
  TARGET_BRANCH: gh-pages
  COMMITTER_NAME: emscripten nightly action
  COMMITTER_EMAIL: builds@ethereum.org
  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

jobs:
  build-emscripten-nightly:
    runs-on: ubuntu-latest
    outputs:
      solidity-version: ${{ env.SOLIDITY_VERSION }}
      nightly-version: ${{ env.NIGHTLY_VERSION }}
      nightly-already-exists: ${{ env.NIGHTLY_ALREADY_EXISTS }}

    steps:
      - name: Symlink solc-bin to /mnt/solc-bin
        # It's now too big to fit on the main partition on Ubuntu, which is mostly filled with software.
        # NOTE: We don't clone to /mnt/solc-bin directly because the checkout action does not support that.
        # See https://github.com/actions/checkout/issues/197
        run: |
          sudo mkdir /mnt/solc-bin/
          sudo chown "$USER" /mnt/solc-bin/
          ln -s /mnt/solc-bin/ solc-bin

      - uses: actions/checkout@v4
        with:
          repository: 'ethereum/solidity'
          ref: 'develop'
          path: 'solidity/'
          submodules: 'recursive'

      - name: Clone solc-bin repository without checking out a working copy
        run: |
          git clone --no-checkout --branch "$TARGET_BRANCH" "https://github.com/${GITHUB_REPOSITORY}.git" solc-bin/

          # For some reason git stages all files for deletion when you use --no-checkout
          cd solc-bin/
          git reset HEAD --quiet

      - name: Determine Solidity version
        run: |
          cd solidity/
          last_commit_timestamp=$(git log -1 --date=iso --format=%ad HEAD)
          last_commit_date=$(date --date="$last_commit_timestamp" --utc +%Y.%-m.%-d)
          last_commit_hash=$(git rev-parse --short=8 HEAD)
          solidity_version=$("scripts/get_version.sh")
          nightly_version="v${solidity_version}-nightly.${last_commit_date}+commit.${last_commit_hash}"

          echo "LAST_COMMIT_DATE=${last_commit_date}" >> $GITHUB_ENV
          echo "LAST_COMMIT_HASH=${last_commit_hash}" >> $GITHUB_ENV
          echo "SOLIDITY_VERSION=${solidity_version}" >> $GITHUB_ENV
          echo "NIGHTLY_VERSION=${nightly_version}" >> $GITHUB_ENV

      - name: Check if there's already a nightly with the same date or commit ID
        run: |
          cd solc-bin/
          matching_nightlies_in_the_repo="$(
            git ls-files "bin/soljson-v${SOLIDITY_VERSION}-nightly.${LAST_COMMIT_DATE}+commit.*.js";
            git ls-files "bin/soljson-v${SOLIDITY_VERSION}-nightly.*+commit.${LAST_COMMIT_HASH}.js"
          )"
          nightly_already_exists="$(test -n "$matching_nightlies_in_the_repo" && echo true || echo false)"

          # There's no way to just stop a job without failing and that would spam everyone with
          # spurious e-mail notifications about the failure. Instead we have to make do with `if`s.
          echo "NIGHTLY_ALREADY_EXISTS=${nightly_already_exists}" >> $GITHUB_ENV

      - name: Build soljson.js
        if: "env.NIGHTLY_ALREADY_EXISTS == 'false'"
        run: |
          cd solidity/
          # Note that this script will spawn and build inside a docker image (which works just fine in github actions).
          scripts/build_emscripten.sh --prerelease-source "nightly"

      - name: Upload soljson.js as an artifact
        if: "env.NIGHTLY_ALREADY_EXISTS == 'false'"
        uses: actions/upload-artifact@v4
        with:
          name: soljson.js
          path: solidity/upload/soljson.js


  test-emscripten-nightly:
    runs-on: ubuntu-latest
    needs: build-emscripten-nightly

    env:
      SOLIDITY_VERSION: ${{ needs.build-emscripten-nightly.outputs.solidity-version }}

    if: "needs.build-emscripten-nightly.outputs.nightly-already-exists == 'false'"
    steps:
      - uses: actions/checkout@v4
        with:
          repository: 'ethereum/solidity'
          submodules: 'recursive'

      - name: Download soljson.js artifact
        uses: actions/download-artifact@v4
        with:
          name: soljson.js

      - name: Run solc-js tests
        run: |
          test/externalTests/solc-js/solc-js.sh "${PWD}/soljson.js" "$SOLIDITY_VERSION"


  add-nightly-and-push:
    runs-on: ubuntu-latest
    needs:
      - build-emscripten-nightly
      - test-emscripten-nightly

    env:
      NIGHTLY_VERSION: ${{ needs.build-emscripten-nightly.outputs.nightly-version }}

    if: "needs.build-emscripten-nightly.outputs.nightly-already-exists == 'false'"
    steps:
      - uses: actions/setup-node@v4

      - name: Symlink solc-bin to /mnt/solc-bin
        # It's now too big to fit on the main partition on Ubuntu, which is mostly filled with software.
        run: |
          sudo mkdir /mnt/solc-bin/
          sudo chown "$USER" /mnt/solc-bin/
          ln -s /mnt/solc-bin/ solc-bin

      - uses: actions/checkout@v4
        with:
          ref: ${{ env.TARGET_BRANCH }}
          path: 'solc-bin'

      - name: Download soljson.js artifact
        uses: actions/download-artifact@v4
        with:
          name: soljson.js

      - name: Set committer name and e-mail
        run: |
          cd solc-bin/
          git config --local user.name "$COMMITTER_NAME"
          git config --local user.email "$COMMITTER_EMAIL"

      - name: Run add-nightly-and-push.sh
        run: |
          soljson_path="${PWD}/soljson.js"
          cd solc-bin/
          ./add-nightly-and-push.sh "$soljson_path" "$NIGHTLY_VERSION"