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#!/bin/bash
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# Copyright (c) 2015 - present Facebook, Inc.
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# All rights reserved.
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#
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# This source code is licensed under the BSD style license found in the
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# LICENSE file in the root directory of this source tree. An additional grant
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# of patent rights can be found in the PATENTS file in the same directory.
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set -e
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set -x
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# This script installs the facebook-clang-plugins
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#
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# TODO (t5939566): ADD INSTRUCTIONS ON HOW TO CUSTOMIZE THE ENVVARS FOR
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# THE INSTALLATION OF THE PLUGINS.
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INFER_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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PLUGIN_DIR="$INFER_ROOT/../facebook-clang-plugin"
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CLANG_EXEC="$PLUGIN_DIR/clang/bin/clang"
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# check if clang is available
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if ! $CLANG_EXEC --version 2>&1 | grep -q '3\.6'; then
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echo "The required version of clang has not been found in $CLANG_EXEC" && exit 1
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fi
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# install facebook-clang-plugins
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pushd "$PLUGIN_DIR"
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# prepare flags for the compilation on the Linux platform
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platform="$(uname)"
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if [ "$platform" == 'Linux' ]; then
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export SDKPATH=""
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export PATH="$PLUGIN_DIR/clang/bin:$PATH"
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[ -z "$CC" ] && export CC="$PLUGIN_DIR/clang/bin/clang"
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[ -z "$CXX" ] && export CXX="$PLUGIN_DIR/clang/bin/clang++"
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[ -z "$CFLAGS" ] && export CFLAGS="-std=c++11 -fPIC"
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[ -z "$LDFLAGS" ] && export LDFLAGS="-shared"
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[ -z "$CLANG_PREFIX" ] && export CLANG_PREFIX="$PLUGIN_DIR/clang"
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[ -z "$LLVM_INCLUDES" ] && export LLVM_INCLUDES="$PLUGIN_DIR/clang/include"
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[ -z "$CLANG_INCLUDES" ] && export CLANG_INCLUDES="$LLVM_INCLUDES $CLANG_PREFIX/include"
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fi
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# compile
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make clean
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make -C clang-ocaml clean
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make
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make -C clang-ocaml all build/clang_ast_proj.ml build/clang_ast_proj.mli
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popd
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# check YojsonASTExporter works with clang
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echo "int main() { return 0; }" | \
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$CLANG_EXEC -o /dev/null -x c \
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-Xclang -load -Xclang $PLUGIN_DIR/libtooling/build/FacebookClangPlugin.dylib \
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-Xclang -plugin -Xclang YojsonASTExporter -c - > /dev/null \
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|| { echo "$CLANG_EXEC and the facebook-clang-plugins are not working.";
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echo "Check you're using the right revision of clang, then retry"; exit 1; }
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