Import electrsd crate

[tcharding]

This is another attempt at #403. That one was so long ago I'm keeping it for the record and opening a new one.

This was done while electrsd is at commit: d2fd8af upgrade electrs esplora. The full commit hash is in the git log.

[tcharding]

This will need #541 before electrsd can be released.

[tcharding]

cc @RCasatta when you have time please mate (after I get CI green though). Needs explicit concept ACK too please same as on the old one (#403).

Are you ok to do the releases of electrsd and bitcoind if/when this merges?

[RCasatta]

Concept ACK a8e89e4

@tcharding About the publishing, note you are already an owner of electrsd on crates.io and I sent you an invite for bitcoind , so you can also publish

[jamillambert]

I had a look and got it to pass CI with the below fixes and then updating the lock files.

justfile:9 and contrib/update-lock-files.sh:13 replace node with bitcoind
integration_test/tests/signer.rs:72 and bitcoind/README.md:31 replace Node with BitcoinD

In .github/workflows/rust.yaml

• Replace all cases of corepc-node with bitcoind
• AI fix for test-electrs-no-download error (the Install LLVM and Clang bit):

  test-electrs-no-download:
    name: Test Electrs no auto-download features
    runs-on: ubuntu-24.04
    env:
      CARGO_TERM_COLOR: always
      ELECTRS_EXEC: "/home/runner/.cargo-install/electrs/bin/electrs"
    steps:
      - uses: dtolnay/rust-toolchain@stable
      - name: Install LLVM and Clang
        run: |
          sudo apt-get update -y
          sudo apt-get install -y clang libclang-dev llvm-dev

          llvm_config="$(command -v llvm-config || true)"
          if [[ -z "$llvm_config" ]]; then
            llvm_config="$(command -v llvm-config-18 || true)"
          fi

          if [[ -z "$llvm_config" ]]; then
            echo "llvm-config not found after installing LLVM packages" >&2
            exit 1
          fi

          echo "LLVM_CONFIG_PATH=$llvm_config" >> "$GITHUB_ENV"
          echo "LIBCLANG_PATH=$($llvm_config --libdir)" >> "$GITHUB_ENV"
      - name: Install electrs
        # Automatically cache installed binaries to avoid compiling them each run
        uses: baptiste0928/cargo-install@v2
        with:
          crate: electrs
      - run: "echo $ELECTRS_EXEC"
      - name: Checkout Crate
        uses: actions/checkout@v3
      - uses: Swatinem/rust-cache@v2
      - run: cd electrsd && cargo test --features 'bitcoind_25_2'

[tcharding]

About the publishing, note you are already an owner of electrsd on crates.io and I sent you an invite for bitcoind , so you can also publish

Accepted, cheers. Would you like me to wait for you to ack release tracking PRs or are you ok for me and @jamillambert to just hack wildly and handle what we can?