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Make vscode ready for kernel development
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#!/usr/bin/env python3 | |
# This program runs "make --dry-run" then processes the output to create a visual studio code | |
# c_cpp_properties.json file | |
# Origin: | |
# https://iotexpert.com/2020/06/01/stupid-python-tricks-vscode-c_cpp_properties-json-for-linux-kernel-development/ | |
# by: Alan Hawse | |
import json | |
import os | |
import re | |
includePath = set() | |
defines = set() | |
otherOptions = set() | |
doubleDash = set() | |
outputJson = dict() | |
# Take a line from the make output | |
# split the line into a list by using whitespace | |
# search the list for tokens of | |
# -I (gcc include) | |
# -D (gcc #define) | |
# -- (I actually ignore these but I was curious what they all were) | |
# - (other - options which I keep track of ... but then ignore) | |
def processLine(lineData): | |
linelist = lineData.split() | |
pwd = os.getcwd() | |
for i in linelist: | |
if(i[:2] == "-I"): | |
if(i[2:2] == '/'): | |
includePath.add(i[2:]) | |
else: | |
includePath.add(f"{pwd}/include/{i[2:]}") | |
elif (i[:2] == "-D"): | |
defines.add(i[2:]) | |
elif (i[:2] == "--"): | |
doubleDash.add(i) | |
elif (i[:1] == '-'): | |
otherOptions.add(i) | |
# run make to find #defines and -I includes | |
stream = os.popen('make --dry-run') | |
outstring = stream.read() | |
lines = outstring.split('\n') | |
for i in lines: | |
# look for a line with " CC "... this is a super ghetto method | |
val = re.compile(r'\s+CC\s+').search(i) | |
if val: | |
processLine(i) | |
# Create the JSON | |
outputJson["configurations"] = [] | |
configDict = {"name" : "Linux"} | |
configDict["includePath"] = list(includePath) | |
configDict["defines"] = list(defines) | |
configDict["intelliSenseMode"] = "gcc-x64" | |
configDict["compilerPath"]= "/usr/bin/gcc" | |
configDict["cStandard"]= "c11" | |
configDict["cppStandard"] = "c++17" | |
outputJson["configurations"].append(configDict) | |
outputJson["version"] = 4 | |
# Convert the Dictonary to a string of JSON | |
jsonMsg = json.dumps(outputJson) | |
# Save the JSON to the files | |
if not os.path.exists('.vscode'): | |
os.mkdir('.vscode') | |
with open(".vscode/c_cpp_properties.json", "w") as outF: | |
outF.write(jsonMsg) |
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