Compiler test scripts: added clang

scripts/compiler_tests/clang/Dockerfile

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+FROM p2pool_compiler_tests_ubuntu
+ARG P2POOL_VERSION GCC_VERSION
+ADD test.sh /p2pool/
+RUN /p2pool/test.sh ${P2POOL_VERSION} ${GCC_VERSION}

scripts/compiler_tests/clang/build.sh

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+#!/bin/sh
+
+# Example usage: ./build.sh v4.8.1 20
+
+cd "$(dirname "$0")"
+
+docker build --build-arg P2POOL_VERSION=$1 --build-arg GCC_VERSION=$2 -t p2pool_compiler_test_clang_$2 .
+
+docker create --name p2pool_compiler_test_clang_$2_container p2pool_compiler_test_clang_$2:latest
+docker cp p2pool_compiler_test_clang_$2_container:/p2pool/logs.tar.gz clang_$2_logs.tar.gz
+docker rm p2pool_compiler_test_clang_$2_container
+
+docker image rm -f p2pool_compiler_test_clang_$2

scripts/compiler_tests/clang/test.sh

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+#!/bin/sh
+
+cd /p2pool
+git fetch --jobs=$(nproc)
+git checkout $1
+git submodule update --recursive --jobs $(nproc)
+
+COMPILER="-DCMAKE_C_COMPILER=clang-$2 -DCMAKE_CXX_COMPILER=clang++-$2"
+
+cd /p2pool
+mkdir build && cd build
+
+cmake .. -DCMAKE_BUILD_TYPE=Release $COMPILER 1>> /p2pool/output.log 2>&1
+make -j$(nproc) p2pool 1>> /p2pool/output.log 2>&1
+./p2pool --test 1>> /p2pool/output.log 2>&1
+
+cd ../tests
+mkdir build && cd build
+cmake .. -DCMAKE_BUILD_TYPE=Release $COMPILER 1>> /p2pool/output.log 2>&1
+make -j$(nproc) p2pool_tests 1>> /p2pool/output.log 2>&1
+gunzip *.gz
+./p2pool_tests 1>> /p2pool/output.log 2>&1
+
+tar -czvf /p2pool/logs.tar.gz /p2pool/output.log