CI: Use script from rust-bitcoin-maintainer-tools

We have a CI script in the `rust-bitcoin-maintainer-tools` repository,
lets use it.

.github/workflows/rust.yml

@@ -1,42 +1,104 @@
-on: [push, pull_request]
+---   # rust-bitcoin CI: If you edit this file please update README.md
+on:   # yamllint disable-line rule:truthy
+  push:
+    branches:
+      - master
+      - 'test-ci/**'
+  pull_request:
 
 name: Continuous integration
 
 jobs:
-  tests:
-    name: Tests
+  Stable:                       # 2 jobs, one per lock file.
+    name: Test - stable toolchain
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        include:
-          - rust: stable
-            env:
-              RUSTFMTCHK: true
-          - rust: nightly
-            env:
-              RUSTFMTCHK: false
-          - rust: 1.56.1
-            env:
-              RUSTFMTCHK: false
+        dep: [minimal, recent]
     steps:
-      - name: Checkout Crate
-        uses: actions/checkout@v2
-      - name: Checkout Toolchain
-        uses: actions-rs/toolchain@v1
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
         with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-      - name: Running test script
-        env: ${{ matrix.env }}
-        run: ./contrib/test.sh
+          repository: tcharding/rust-bitcoin-maintainer-tools
+          ref: 05-02-ci
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@stable
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh stable
 
-  integrations-tests:
-    name: Integration Tests
+  Nightly:                      #  2 jobs, one per lock file.
+    name: Test - nightly toolchain
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
+      matrix:
+        dep: [minimal, recent]
+    steps:
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
+        with:
+          repository: tcharding/rust-bitcoin-maintainer-tools
+          ref: 05-02-ci
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@nightly
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh nightly
+
+  MSRV:          # Recent lock file currently does not work with MSRV.
+    name: Test - 1.56.1 toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        dep: [minimal]
+    steps:
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
+        with:
+          repository: tcharding/rust-bitcoin-maintainer-tools
+          ref: 05-02-ci
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: "1.56.1"
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh msrv
+
+  Format:                       #  1 job, run cargo fmt directly.
+    name: Format - stable toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@stable
+      - name: "Check formatting"
+        run: cargo fmt --all -- --check
+
+  Integration:                  # 1 job for each Bitcoin Core version.
+    name: Integration tests - stable toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
       matrix:
-        rust: [stable]
         bitcoinversion:
           [
             "0.18.0",
@@ -48,15 +110,11 @@ jobs:
             "0.21.0",
           ]
     steps:
-      - name: Checkout Crate
-        uses: actions/checkout@v2
-      - name: Checkout Toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-      - name: Running test script
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@stable
+      - name: "Run integration tests"
         env:
           BITCOINVERSION: ${{ matrix.bitcoinversion }}
-        run: ./contrib/test.sh
+        run: ./contrib/integration_test.sh

client/contrib/test_vars.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+# Test all these features with "std" enabled.
+FEATURES_WITH_STD=""
+
+# Test all these features without "std" enabled.
+FEATURES_WITHOUT_STD="verifymessage"
+
+# Run these examples.
+EXAMPLES="retry_client:verifymessage"

contrib/crates.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+# Crates in this workspace to test (excl. fuzz an integration-tests).
+CRATES=("json" "client")

contrib/integration_test.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+#
+# Run the integration test optionally downloading Bitcoin Core binary if BITCOINVERSION is set.
+
+set -euo pipefail
+
+REPO_DIR=$(git rev-parse --show-toplevel)
+
+# Make all cargo invocations verbose.
+export CARGO_TERM_VERBOSE=true
+
+main() {
+    # If a specific version of Bitcoin Core is set then download the binary.
+    if [ -n "${BITCOINVERSION+x}" ]; then
+        download_binary
+    fi
+
+    need_cmd bitcoind
+
+    cd integration_test
+    ./run.sh
+}
+
+download_binary() {
+    wget https://bitcoincore.org/bin/bitcoin-core-$BITCOINVERSION/bitcoin-$BITCOINVERSION-x86_64-linux-gnu.tar.gz
+    tar -xzvf bitcoin-$BITCOINVERSION-x86_64-linux-gnu.tar.gz
+    export PATH=$PATH:$(pwd)/bitcoin-$BITCOINVERSION/bin
+}
+
+err() {
+    echo "$1" >&2
+    exit 1
+}
+
+need_cmd() {
+    if ! command -v "$1" > /dev/null 2>&1
+    then err "need '$1' (command not found)"
+    fi
+}
+
+#
+# Main script
+#
+main "$@"
+exit 0

json/Cargo.toml

@@ -27,3 +27,4 @@ serde = { version = "1", features = [ "derive" ] }
 serde_json = "1"
 
 bitcoin = { version = "0.31.0", features = ["serde", "rand-std"]}
+

json/contrib/test_vars.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+# Test all these features with "std" enabled.
+FEATURES_WITH_STD=""
+
+# Test all these features without "std" enabled.
+FEATURES_WITHOUT_STD=""
+
+# Run these examples.
+EXAMPLES=""