Run iwyu on compile_commands.json file created by CMake with CMAKE_EXPORT_COMPILE_COMMANDS

iwyu-on-json.py

#!/usr/bin/env python
import json
import subprocess
import sys


def run(cmd):
#	print(cmd)
	stringCmd = u" ".join(cmd)
	subprocess.call(stringCmd, shell=True)

def runIWYUGDB(wd, args):
	cmd =[u"gdb", u"--args"]
	cmd.extend(basecmd)
	cmd.extend(args)
	run(cmd)

def runIWYU(wd, args):
	cmd = basecmd[:]
	cmd.extend(args)
	run(cmd)

f = open("compile_commands.json", "r")
tunits = json.load(f)

extraArg = u" ".join([u"-Xiwyu " + x for x in sys.argv[1:]])

basedir = u"/home/rpavlik/llvm-trunk/"
basecmd = [basedir + u"bin/include-what-you-use", u"-Xiwyu", u"--verbose=2", extraArg] #  "-working-directory", wd]

srcdir = "/home/rpavlik/src/third-party/llvm/tools/clang/tools/include-what-you-use/"
mappingFiles = ["gcc.libc.imp", "gcc.stl.headers.imp", "gcc.symbols.imp", "google.imp", "third_party.imp"] # "iwyu.gcc.imp"

for mapping in mappingFiles:
	basecmd.extend(["-Xiwyu", "--mapping_file="+srcdir+mapping])


for tu in tunits:
	 oldDriver = tu["command"].split(None)[0]
	 cmd = tu["command"].replace(oldDriver, u"")
	 runIWYU(tu["directory"], [cmd])