Merge pull request rust-bitcoin#664 from RCasatta/fuzz_ci

Improve Fuzz CI

Author: TheBlueMatt

.github/workflows/fuzz.yml

@@ -0,0 +1,53 @@
+name: Fuzz
+
+on: [push, pull_request]
+
+jobs:
+
+  fuzz:
+    runs-on: ubuntu-20.04
+    env:
+      HFUZZ_BUILD_ARGS: "--features honggfuzz_fuzz"
+    strategy:
+      fail-fast: false
+      matrix:
+        fuzz_target: [deser_net_msg, deserialize_address, deserialize_amount, deserialize_block, deserialize_psbt, deserialize_script, deserialize_transaction, outpoint_string, uint128_fuzz]
+    steps:
+      - name: Install test dependencies
+        run: sudo apt-get update -y && sudo apt-get install -y binutils-dev libunwind8-dev libcurl4-openssl-dev libelf-dev libdw-dev cmake gcc libiberty-dev
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        id: cache-fuzz
+        with:
+          path: |
+            ~/.cargo/bin
+            fuzz/target
+            target
+          key: cache-${{ matrix.target }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          profile: minimal
+      - run: cargo install honggfuzz
+        if: steps.cache-fuzz.outputs.cache-hit != 'true'
+      - run: echo "HFUZZ_RUN_ARGS=\"--run_time 30 --exit_upon_crash -v -f hfuzz_input/${{ matrix.fuzz_target }}/input\"" >> $GITHUB_ENV
+      - name: fuzz
+        run: cd fuzz && cargo hfuzz run ${{ matrix.fuzz_target }}
+      - run: echo "${{ matrix.fuzz_target }}.rs" >executed_${{ matrix.fuzz_target }}
+      - uses: actions/upload-artifact@v2
+        with:
+          name: executed_${{ matrix.fuzz_target }}
+          path: executed_${{ matrix.fuzz_target }}
+
+  verify-execution:
+    needs: fuzz
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/download-artifact@v2
+      - name: Display structure of downloaded files
+        run: ls -R
+      - run: find executed_* -type f -exec cat {} + | sort > executed
+      - run: ls fuzz/fuzz_targets | sort > expected
+      - run: diff expected executed

.github/workflows/rust.yml

@@ -20,7 +20,6 @@ jobs:
               DO_NO_STD: true
           - rust: nightly
             env:
-              DO_FUZZ: true
               DO_BENCH: true
               AS_DEPENDENCY: true
               DO_NO_STD: true
@@ -29,8 +28,6 @@ jobs:
               AS_DEPENDENCY: true
               PIN_VERSIONS: true
     steps:
-      - name: Install test dependencies
-        run: sudo apt-get update -y && 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