migrateAndroidX.py

import csv
import glob
import os
import shutil
import sys
import urllib.request

if len(sys.argv) != 2:
    print('Usage: ' + sys.argv[0] + ' [path to project]')
    sys.exit()

projectPath = sys.argv[1]
mappingUrl = 'https://developer.android.com/topic/libraries/support-library/downloads/androidx-class-mapping.csv'
mappingFile = 'androidx-class-mapping.csv'


def replace_all(text, dict):
    for i, j in dict.items():
        text = text.replace(i, j)
    return text


for path in glob.iglob(projectPath + '/**/build', recursive=True):
    if os.path.isdir(path):
        print("Removing " + path)
        shutil.rmtree(path)

if not os.path.isfile(mappingFile):
    print('Downloading mapping file...')
    urllib.request.urlretrieve(mappingUrl, mappingFile)

with open(mappingFile, mode='r') as mapping:
    reader = csv.reader(mapping)
    replaceDict = {row[0]: row[1] for row in reader}

files = []
for ext in ('/**/*.xml', '/**/*.kt', '/**/*.java', '/**/*.groovy'):
    files.extend(glob.iglob(projectPath + ext, recursive=True))

for filename in files:
    print(filename)

    try:
        with open(filename, 'r') as file:
            filedata = file.read()

        filedata = replace_all(filedata, replaceDict)

        with open(filename, 'w') as file:
            file.write(filedata)

    except Exception as e:
        print("Error reading/writing file. Exception: " + str(e))