Merge pull request #45 from rust-bitcoin/github-ci

Add github actions files for CI

.github/workflows/rust.yml

@@ -0,0 +1,100 @@
+on: [push, pull_request]
+
+name: Continuous integration
+
+jobs:
+  Stable:
+    name: Test - stable toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        # https://github.com/dtolnay/rust-toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Running test script
+        env:
+          DO_NO_STD: true
+          DO_FEATURE_MATRIX: true
+        run: ./contrib/test.sh
+
+  Beta:
+    name: Test - beta toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@beta
+      - name: Running test script
+        env:
+          DO_NO_STD: true
+        run: ./contrib/test.sh
+
+  Nightly:
+    name: Test - nightly toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@nightly
+      - name: Running test script
+        env:
+          DO_NO_STD: true
+        run: ./contrib/test.sh
+
+  MSRV:
+    name: Test - 1.41.1 toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@1.41.1
+      - name: Running test script
+        env:
+          DO_NO_STD: true
+          DO_FEATURE_MATRIX: true
+        run: ./contrib/test.sh
+
+  Arch32bit:
+    name: Test 32-bit version
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Add architecture i386
+        run: sudo dpkg --add-architecture i386
+      - name: Install i686 gcc
+        run: sudo apt-get update -y && sudo apt-get install -y gcc-multilib
+      - name: Install target
+        run: rustup target add i686-unknown-linux-gnu
+      - name: Run test on i686
+        run: cargo test --target i686-unknown-linux-gnu
+
+  Cross:
+    name: Cross test
+    if: ${{ !github.event.act }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Install target
+        run: rustup target add s390x-unknown-linux-gnu
+      - name: install cross
+        run: cargo install cross --locked
+      - name: run cross test
+        run: cross test --target s390x-unknown-linux-gnu

Cargo.toml

@@ -45,7 +45,7 @@ rand_core = "0.4.0"
 
 unicode-normalization = { version = "=0.1.9", optional = true }
 rand = { version = "0.6.0", optional = true }
-serde = { version = "1.0", default-features = false, optional = true }
+serde = { version = "1.0", default-features = false, features = [ "alloc" ], optional = true }
 # Enabling this feature raises the MSRV to 1.51
 zeroize = {version = "1.5", features = ["zeroize_derive"], optional = true}
 

contrib/test.sh

@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -ex
+
+FEATURES="serde rand all-languages"
+
+cargo --version
+rustc --version
+
+# Work out if we are using a nightly toolchain.
+NIGHTLY=false
+if cargo --version | grep nightly; then
+    NIGHTLY=true
+fi
+
+# Pin dependencies as required if we are using MSRV toolchain.
+# if cargo --version | grep "1\.41"; then
+# fi
+
+echo "********* Testing std *************"
+# Test without any features other than std first
+cargo test --verbose --no-default-features --features="std"
+
+echo "********* Testing default *************"
+# Then test with the default features
+cargo test --verbose
+
+if [ "$DO_NO_STD" = true ]
+then
+    echo "********* Testing no-std build *************"
+    # Build no_std, to make sure that cfg(test) doesn't hide any issues
+    cargo build --verbose --no-default-features
+
+    # Build std + no_std, to make sure they are not incompatible
+    cargo build --verbose 
+    # Test no_std
+    cargo test --verbose --no-default-features
+
+    # Build all features
+    cargo build --verbose --features="$FEATURES" --no-default-features
+
+    # Build specific features
+    for feature in ${FEATURES}
+    do
+        cargo build --verbose --features="$feature" --no-default-features
+    done
+fi
+
+# Test each feature
+for feature in ${FEATURES}
+do
+    echo "********* Testing $feature *************"
+    cargo test --verbose --features="$feature"
+done

src/internal_macros.rs

@@ -8,8 +8,9 @@ macro_rules! serde_string_impl {
 			where
 				D: $crate::serde::de::Deserializer<'de>,
 			{
-				use std::fmt::{self, Formatter};
-				use std::str::FromStr;
+				use core::fmt::{self, Formatter};
+				use core::str::FromStr;
+				use alloc::string::String;
 
 				struct Visitor;
 				impl<'de> $crate::serde::de::Visitor<'de> for Visitor {

src/lib.rs

@@ -28,6 +28,8 @@
 #[cfg(any(test, feature = "std"))]
 pub extern crate core;
 
+extern crate alloc;
+
 extern crate bitcoin_hashes;
 extern crate rand_core;