ci: move to Nix

You can switch flawlessly from Rust stable, MSRV, and nightly using either: - `nix develop .`: Rust MRSV - `nix develop .#msrv`: Rust MRSV - `nix develop .#stable`: Rust latest stable - `nix develop .#nightly`: Rust Nightly Also you don't need to worry about installing binaries from `bitcoind` or `electrs` crates, since we fetch these from `nixpkgs` (with pinned versions) and add them to your local environment. Additionally, all the extra dependencies that you need for WASM are handled as well. Finally, no need to set ENV vars: they are also set all by default to you. If you are committing typos, or failing to adhere to our guidelines in [CONTRIBUTING.md](CONTRIBUTING.md); we won't let you commit or push. This is handled by Nix's automated `pre-commit` hooks which gives helpful error messages. Please check the [Nix.md](Nix.md) file to learn more about Nix and what we are aiming to do with the Nix integration into BDK.
bitcoindevkit · Sep 27, 2024 · 4e37eb2 · 4e37eb2
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diff --git a/clippy.toml → .clippy.toml b/clippy.toml → .clippy.toml
diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
@@ -3,17 +3,16 @@ name: Audit
 on:
   push:
     paths:
-      - '**/Cargo.toml'
-      - '**/Cargo.lock'
+      - "**/Cargo.toml"
+      - "**/Cargo.lock"
   schedule:
-    - cron: '0 0 * * 0' # Once per week
+    - cron: "0 0 * * 0" # Once per week
 
 jobs:
-
   security_audit:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions-rs/audit-check@v1
         with:
-          token: ${{ secrets.GITHUB_TOKEN }}
+          token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/code_coverage.yml b/.github/workflows/code_coverage.yml
@@ -6,35 +6,26 @@ jobs:
   Codecov:
     name: Code Coverage
     runs-on: ubuntu-latest
-    env:
-      RUSTFLAGS: "-Cinstrument-coverage"
-      RUSTDOCFLAGS: "-Cinstrument-coverage"
-      LLVM_PROFILE_FILE: "./target/coverage/%p-%m.profraw"
-
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Install lcov tools
-        run: sudo apt-get install lcov -y
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: stable
-            override: true
-            profile: minimal
-            components: llvm-tools-preview
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
       - name: Rust Cache
-        uses: Swatinem/[email protected]
+        uses: Swatinem/rust-cache@v2
+      # Code Coverage
       - name: Install grcov
         run: if [[ ! -e ~/.cargo/bin/grcov ]]; then cargo install grcov; fi
       - name: Test
-        run: cargo test --all-features
+        run: nix develop ".#coverage" -L --command cargo test --all-features
       - name: Make coverage directory
         run: mkdir coverage
       - name: Run grcov
-        run: grcov . --binary-path ./target/debug/ -s . -t lcov --branch --ignore-not-existing --keep-only '**/crates/**' --ignore '**/tests/**' --ignore '**/examples/**' -o ./coverage/lcov.info
+        run: nix develop ".#coverage" -L --command grcov . --binary-path ./target/debug/ -s . -t lcov --branch --ignore-not-existing --keep-only '**/crates/**' --ignore '**/tests/**' --ignore '**/examples/**' -o ./coverage/lcov.info
       - name: Generate HTML coverage report
-        run: genhtml -o coverage-report.html --ignore-errors source ./coverage/lcov.info
+        run: nix develop ".#coverage" -L --command genhtml -o coverage-report.html --ignore-errors source ./coverage/lcov.info
       - name: Coveralls upload
         uses: coverallsapp/github-action@master
         with:

diff --git a/.github/workflows/cont_integration.yml b/.github/workflows/cont_integration.yml
@@ -3,149 +3,133 @@ on: [push, pull_request]
 name: CI
 
 jobs:
+  self-care:
+    name: Flake self-check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check Nix flake inputs
+        uses: DeterminateSystems/flake-checker-action@v9
+        with:
+          fail-mode: true
+
+  pre-commit-checks:
+    name: "Pre-commit checks: cargo fmt, typos, pgp-signed and conventional commits"
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
+      - name: Rust Cache
+        uses: Swatinem/rust-cache@v2
+      - name: Pre-commit checks
+        run: nix flake check
 
-  prepare:
+  clippy:
+    name: "Stable build, clippy and test"
     runs-on: ubuntu-latest
-    outputs:
-      rust_version: ${{ steps.read_toolchain.outputs.rust_version }}
+    strategy:
+      matrix:
+        features:
+          - --no-default-features
+          - --all-features
     steps:
-      - name: "Checkout repo"
+      - name: checkout
         uses: actions/checkout@v4
-      - name: "Read rust version"
-        id: read_toolchain
-        run: echo "rust_version=$(cat rust-version)" >> $GITHUB_OUTPUT
-
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
+      - name: Rust Cache
+        uses: Swatinem/rust-cache@v2
+      - name: Build
+        run: nix develop -i -L .#stable --command cargo build ${{ matrix.features }}
+      - name: Clippy
+        run: nix develop -i -L .#stable --command cargo clippy ${{ matrix.features }} -- -D warnings
+      - name: Test
+        run: nix develop -i -L .#stable --command cargo test ${{ matrix.features }}
+
   build-test:
-    name: Build and test
+    name: "MSRV build and test"
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        rust:
-          - version: stable
-            clippy: true
-          - version: 1.63.0 # MSRV
         features:
           - --no-default-features
           - --all-features
     steps:
       - name: checkout
-        uses: actions/checkout@v2
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: ${{ matrix.rust.version }}
-            override: true
-            profile: minimal
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
       - name: Rust Cache
-        uses: Swatinem/[email protected]
-      - name: Pin dependencies for MSRV
-        if: matrix.rust.version == '1.63.0'
-        run: |
-          cargo update -p zstd-sys --precise "2.0.8+zstd.1.5.5"
-          cargo update -p time --precise "0.3.20"
-          cargo update -p home --precise "0.5.5"
-          cargo update -p proptest --precise "1.2.0"
-          cargo update -p url --precise "2.5.0"
-          cargo update -p cc --precise "1.0.105"
-          cargo update -p tokio --precise "1.38.1"
-          cargo update -p tokio-util --precise "0.7.11"
+        uses: Swatinem/rust-cache@v2
       - name: Build
-        run: cargo build ${{ matrix.features }}
+        run: nix develop -i -L .#msrv --command cargo build ${{ matrix.features }}
       - name: Test
-        run: cargo test ${{ matrix.features }}
+        run: nix develop -i -L .#msrv --command cargo test ${{ matrix.features }}
 
   check-no-std:
     name: Check no_std
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - msrv
+          - stable
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
-          profile: minimal
-          # target: "thumbv6m-none-eabi"
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
       - name: Rust Cache
-        uses: Swatinem/[email protected]
+        uses: Swatinem/rust-cache@v2
+      # TODO "--target thumbv6m-none-eabi" should work but currently does not
       - name: Check bdk_chain
         working-directory: ./crates/chain
-        # TODO "--target thumbv6m-none-eabi" should work but currently does not
-        run: cargo check --no-default-features --features miniscript/no-std,hashbrown
-      - name: Check bdk wallet
+        run: nix develop -i -L ".#${{ matrix.rust }}" --command cargo check --no-default-features --features miniscript/no-std,hashbrown
+      - name: Check bdk_wallet
         working-directory: ./crates/wallet
-        # TODO "--target thumbv6m-none-eabi" should work but currently does not
-        run: cargo check --no-default-features --features miniscript/no-std,bdk_chain/hashbrown
-      - name: Check esplora
+        run: nix develop -i -L ".#${{ matrix.rust }}" --command cargo check --no-default-features --features miniscript/no-std,bdk_chain/hashbrown
+      - name: Check bdk_esplora
         working-directory: ./crates/esplora
-        # TODO "--target thumbv6m-none-eabi" should work but currently does not
-        run: cargo check --no-default-features --features miniscript/no-std,bdk_chain/hashbrown
+        run: nix develop -i -L ".#${{ matrix.rust }}" --command cargo check --no-default-features --features miniscript/no-std,bdk_chain/hashbrown
 
   check-wasm:
     name: Check WASM
-    runs-on: ubuntu-20.04
-    env:
-      CC: clang-10
-      CFLAGS: -I/usr/include
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - msrv
+          - stable
+        target:
+          - wasm32-unknown-unknown
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-        # Install a recent version of clang that supports wasm32
-      - run: wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add - || exit 1
-      - run: sudo apt-get update || exit 1
-      - run: sudo apt-get install -y libclang-common-10-dev clang-10 libc6-dev-i386 || exit 1
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: stable
-            override: true
-            profile: minimal
-            target: "wasm32-unknown-unknown"
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.2.1
-      - name: Check bdk wallet
+        uses: Swatinem/rust-cache@v2
+      - name: Check bdk_wallet
         working-directory: ./crates/wallet
-        run: cargo check --target wasm32-unknown-unknown --no-default-features --features miniscript/no-std,bdk_chain/hashbrown
-      - name: Check esplora
+        run: nix develop -i -L ".#${{ matrix.rust }}" --command cargo check --target ${{ matrix.target }} --no-default-features --features miniscript/no-std,bdk_chain/hashbrown
+      - name: Check bdk_esplora
         working-directory: ./crates/esplora
-        run: cargo check --target wasm32-unknown-unknown --no-default-features --features miniscript/no-std,bdk_chain/hashbrown,async
-
-  fmt:
-    name: Rust fmt
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: stable
-            override: true
-            profile: minimal
-            components: rustfmt
-      - name: Check fmt
-        run: cargo fmt --all -- --config format_code_in_doc_comments=true --check
-
-  clippy_check:
-    needs: prepare
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v1
-      - uses: actions-rs/toolchain@v1
-        with:
-            toolchain: ${{ needs.prepare.outputs.rust_version }}
-            components: clippy
-            override: true
-      - name: Rust Cache
-        uses: Swatinem/[email protected]
-      - uses: actions-rs/clippy-check@v1
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          args: --all-features --all-targets -- -D warnings
+        run: nix develop -i -L ".#${{ matrix.rust }}" --command cargo check --target ${{ matrix.target }} --no-default-features --features miniscript/no-std,bdk_chain/hashbrown,async
 
   build-examples:
-    name: Build Examples
+    name: Build examples
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -160,15 +144,13 @@ jobs:
           - wallet_rpc
     steps:
       - name: checkout
-        uses: actions/checkout@v2
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
-          profile: minimal
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v14
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.2.1
-      - name: Build
+        uses: Swatinem/rust-cache@v2
+      - name: Build examples
         working-directory: example-crates/${{ matrix.example-dir }}
-        run: cargo build
+        run: nix develop -i -L .#stable --command cargo build
diff --git a/.github/workflows/nightly_docs.yml b/.github/workflows/nightly_docs.yml
@@ -7,34 +7,30 @@ jobs:
     name: Build docs
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout sources
-        uses: actions/checkout@v2
-      - name: Set default toolchain
-        run: rustup default nightly-2024-05-12
-      - name: Set profile
-        run: rustup set profile minimal
-      - name: Update toolchain
-        run: rustup update
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v11
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v6
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.2.1
+        uses: Swatinem/rust-cache@v2
       - name: Build docs
-        run: cargo doc --no-deps
-        env:
-          RUSTDOCFLAGS: '--cfg docsrs -Dwarnings'
+        run: nix develop -L '.#nightly' --command cargo doc --no-deps
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with:
           name: built-docs
           path: ./target/doc/*
 
   publish_docs:
-    name: 'Publish docs'
+    name: "Publish docs"
     if: github.ref == 'refs/heads/master'
     needs: [build_docs]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout `bitcoindevkit.org`
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           ssh-key: ${{ secrets.DOCS_PUSH_SSH_KEY }}
           repository: bitcoindevkit/bitcoindevkit.org
@@ -51,7 +47,7 @@ jobs:
       - name: Configure git
         run: git config user.email "[email protected]" && git config user.name "github-actions"
       - name: Commit
-        continue-on-error: true         # If there's nothing to commit this step fails, but it's fine
+        continue-on-error: true # If there's nothing to commit this step fails, but it's fine
         run: git add ./docs/.vuepress/public/docs-rs && git commit -m "Publish autogenerated nightly docs"
       - name: Push
         run: git push origin master