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|
#!/usr/bin/ruby
# Use this script to produce compile_commands.json useful to feed
# clangd/ccls. Helpful for modern IDEs.
require 'json'
DIRNAME = File.dirname(__FILE__)
Dir.chdir(DIRNAME)
all_files = Dir['**/*.h'] + Dir['**/*.c'] + Dir['**/*.cc']
all_files.sort!
def classify(path)
return :skip if path =~ /\/googletest\/.*\/test\//
return :skip if path == "src/config.h"
return :skip if path =~ /gmock/
return :skip if path =~ /\/googletest\/samples\//
return :skip if path.end_with?("/gtest-all.cc")
return :skip if path.start_with?("src/windows/")
return :skip if path.start_with?("vsprojects/")
if path =~ /libbacktrace(\/|-)/
return :default if path.end_with?(".cc")
return :libbacktrace
end
:default
end
NORMAL_INCLUDES = %w[
benchmark/ generic-config/ src/gperftools/
src/base/ src/
vendor/googletest/googletest/include/
vendor/googletest/googletest/
].map {|d| "-I#{d}"}
entries = all_files.map do |filename|
args = case classify(filename)
when :default
# various libc_override_xyz headers
# (e.g. libc_override_glibc.h) are not standalone, but we
# can make clangd "compile" them by including
# src/libc_override.h but setting up this "inclusion" to
# skip actual override includes. Yes, ugly. But it works,
# mostly.
maybe_libc_override = if filename =~ /libc_override_/
%w[-include src/libc_override.h -DTCMALLOC_SKIP_OVERRIDE]
else
[]
end
# Note, getpc.h cannot include "config.h" because it is
# being used by ./configure script. So we need to "help" it
# for the clangd case.
maybe_generic_config = if File.basename(filename) == "getpc.h"
%w[-include generic-config/config.h]
else
[]
end
["clang++", "-x", "c++", "-std=c++17",
"-DENABLE_EMERGENCY_MALLOC",
*NORMAL_INCLUDES,
*maybe_libc_override,
*maybe_generic_config,
"--", filename]
when :libbacktrace
["clang",
"-Ivendor/libbacktrace-integration",
"-Ivendor/libbacktrace",
"--", filename]
when :skip
next
end
{file: filename,
directory: Dir.pwd,
arguments: args}
end.compact
File.open("compile_commands.json", "w") do |f|
f.puts JSON.pretty_generate(entries)
end
puts "produced #{File.join(DIRNAME, "compile_commands.json")}"
|
