ale/test/compile_database_perf/test.sh

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#!/bin/bash
# Generate source files for ALE to read. They don't have to be very long, the delay is in reading compile_commands, not actually running tests
mkdir -p gen_src
for i in {1..400}; do echo "const char *GeneratedFunc${i}() { return \"Word ${i}\"; }" > gen_src/source${i}.cpp; done
# Create the compile_commands database
echo "[ {" > compile_commands.json
for i in {1..399}; do
{
echo "\"command\": \"clang++ -c $(pwd)/gen_src/source${i}.cpp -o $(pwd)/build/obj/Debug/source${i}.o -MF $(pwd)/build/obj/Debug/source${i}.d -MMD -MP\","
echo "\"directory\": \"$(pwd)/build\","
echo "\"file\": \"$(pwd)/gen_src/source${i}.cpp\""
echo "}, {"
} >> compile_commands.json
done
{
echo "\"command\": \"clang++ -c $(pwd)/gen_src/source400.cpp -o $(pwd)/build/obj/Debug/source400.o -MF $(pwd)/build/obj/Debug/source400.d -MMD -MP\","
echo "\"directory\": \"$(pwd)/build\","
echo "\"file\": \"$(pwd)/gen_src/source400.cpp\""
echo "} ]"
} >> compile_commands.json
# Start up vim and switch back and forth between files -- at least one of the files must be near the bottom of compile_commands.json
time vim -c "for i in range(0,20) | edit gen_src/source10.cpp | edit gen_src/source400.cpp | endfor" \
-c "noautocmd qa!" \
`find . | grep "source..\.cpp"`