sublime plugin to sort package json on save

SortPackageJson.py

import sublime
import sublime_plugin
import json
from collections import OrderedDict

# https://github.com/antfu/eslint-config/blob/main/src/configs/sort.ts
KeyOrder = [
    'publisher',
    'name',
    'displayName',
    'type',
    'version',
    'private',
    'packageManager',
    'description',
    'author',
    'license',
    'funding',
    'homepage',
    'repository',
    'bugs',
    'keywords',
    'categories',
    'sideEffects',
    'exports',
    'main',
    'module',
    'unpkg',
    'jsdelivr',
    'types',
    'typesVersions',
    'bin',
    'icon',
    'files',
    'engines',
    'activationEvents',
    'contributes',
    'scripts',
    'peerDependencies',
    'peerDependenciesMeta',
    'dependencies',
    'optionalDependencies',
    'devDependencies',
    'pnpm',
    'overrides',
    'resolutions',
    'husky',
    'simple-git-hooks',
    'lint-staged',
    'eslintConfig',
]


ExportsOrder = [
    'types',
    'import',
    'require',
    'default',
]


def make_sorter(order):
    def sorter(pair):
        (key, value) = pair
        try:
            return order.index(key)
        except:
            return key
    return sorter


class SortPackageJsonCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        text = self.view.substr(sublime.Region(0, self.view.size()))
        try:
            value = sublime.decode_value(text)
        except:
            return
        value = self._sort(value)
        new_text = json.dumps(value, indent=2) + '\n'
        if new_text != text:
            self.view.replace(edit, sublime.Region(0, self.view.size()), new_text)
            sublime.set_timeout_async(lambda: self.view.run_command('save'))

    def _sort(self, json):
        # Sort 'files' array
        if 'files' in json:
            json['files'] = sorted(json['files'])
        # Sort top-level keys
        json = OrderedDict(sorted(json.items(), key=make_sorter(KeyOrder)))
        # Sort dependencies
        for (key, value) in json.items():
            if 'dependencies' in key or 'Dependencies' in key or 'overrides' in key:
                json[key] = OrderedDict(sorted(value.items()))
        # Sort exports
        if 'exports' in json and isinstance(json['exports'], dict):
            self._sort_exports(json, 'exports')
        return json

    def _sort_exports(self, json, key):
        if isinstance(json[key], dict):
            for (key, value) in json[key].items():
                self._sort_exports(json[key], key)
            json[key] = OrderedDict(sorted(json[key].items(), key=make_sorter(ExportsOrder)))


class SortPackageJsonOnSaveListener(sublime_plugin.ViewEventListener):
    def on_post_save(self):
        if self.view.file_name().endswith('package.json'):
            self.view.run_command('sort_package_json')