Migrate CI to GitHub actions

.github/workflows/rust.yml

@@ -0,0 +1,41 @@
+on: [push, pull_request]
+
+name: Continuous integration
+
+jobs:
+  Tests:
+    name: Tests
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - rust: stable
+            env:
+              DO_FUZZ: true
+              DO_COV: true
+              AS_DEPENDENCY: true
+          - rust: beta
+            env:
+              AS_DEPENDENCY: true
+          - rust: nightly
+            env:
+              DO_BENCH: true
+              AS_DEPENDENCY: true
+          - rust: 1.29.0
+            env:
+              AS_DEPENDENCY: true
+              PIN_VERSIONS: true
+    steps:
+      - name: Install test dependencies
+        run: sudo apt-get install -y binutils-dev libunwind8-dev libcurl4-openssl-dev libelf-dev libdw-dev cmake gcc libiberty-dev
+      - 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
+        env: ${{ matrix.env }}
+        run: ./contrib/test.sh

.travis.yml

@@ -1,46 +0,0 @@
-language: rust
-cache: cargo
-
-addons:
-  apt:
-    update: true
-    packages:
-      - binutils-dev
-      - libunwind8-dev
-      - libcurl4-openssl-dev
-      - libelf-dev
-      - libdw-dev
-      - cmake
-      - gcc
-      - libiberty-dev
-
-
-matrix:
-  include:
-    - rust: stable
-      env: DO_FUZZ=true DO_COV=true AS_DEPENDENCY=true
-    - rust: beta
-      env: AS_DEPENDENCY=true
-    - rust: nightly
-      env: DO_BENCH=true AS_DEPENDENCY=true
-    - rust: 1.29.0
-      env: AS_DEPENDENCY=true
-
-script:
-  - ./contrib/test.sh
-
-after_success: |
-  if [ "$DO_COV" = true ]; then
-    wget https://github.com/SimonKagstrom/kcov/archive/master.tar.gz &&
-    tar xzf master.tar.gz &&
-    cd kcov-master &&
-    mkdir build &&
-    cd build &&
-    cmake .. &&
-    make &&
-    make install DESTDIR=../../kcov-build &&
-    cd ../.. &&
-    rm -rf kcov-master &&
-    for file in target/debug/bitcoin-*; do [ -x "${file}" ] || continue; mkdir -p "target/cov/$(basename $file)"; ./kcov-build/usr/local/bin/kcov --exclude-pattern=/.cargo,/usr/lib --verify "target/cov/$(basename $file)" "$file"; done &&
-    bash <(curl -s https://codecov.io/bash) &&
-    echo "Uploaded code coverage"; fi

contrib/test.sh

@@ -3,7 +3,7 @@
 FEATURES="base64 bitcoinconsensus use-serde rand"
 
 # Pin `cc` for Rust 1.29
-if [ "$TRAVIS_RUST_VERSION" = "1.29.0" ]; then
+if [ -n "$PIN_VERSIONS" ]; then
     cargo generate-lockfile --verbose
     cargo update -p cc --precise "1.0.41" --verbose
     cargo update -p serde --precise "1.0.98" --verbose
@@ -57,7 +57,7 @@ then
     echo 'bitcoin = { path = "..", features = ["use-serde"] }' >> Cargo.toml
 
     # Pin `cc` for Rust 1.29
-    if [ "$TRAVIS_RUST_VERSION" = "1.29.0" ]; then
+    if [ -n "$PIN_VERSIONS" ]; then
         cargo generate-lockfile --verbose
         cargo update -p cc --precise "1.0.41" --verbose
         cargo update -p serde --precise "1.0.98" --verbose