Quick script for extracting language strings from Laravel projects.

lang.py

import re
import os
import json
from collections import OrderedDict


def extract_with(directory, before, after):
    translations = {}
    for root, dirs, files in os.walk(directory):
        for file in files:
            with open(root + '/' + file, 'r') as f:
                data = f.read()
                strings = data.split(before)[1:]
                for string in strings:
                    parts = string.split(after)
                    key = parts[0]
                    if string not in translations and key[0] in ["'", '"'] and key[0] == key[-1]:
                        translations[key[1:-1]] = ''
    return translations


def extract(directory):
    return {
        **extract_with(directory, '__(', ')'),
        **extract_with(directory, '@lang(', ')'),
        **extract_with(directory, 'trans(', ')')
    }


translations = {
    **extract('resources/views'),
    **extract('app')
}

try:
    with open('resources/lang/nb.json', 'r') as f:
        existing = json.load(f)
except FileNotFoundError:
    existing = {}

combined = {
    **translations,
    **existing
}
combined = OrderedDict(sorted(combined.items()))

with open('resources/lang/nb.json', 'w') as f:
    f.write(json.dumps(combined, ensure_ascii=False, indent=4))