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How to use construct_changes method in localstack

Best Python code snippet using localstack_python

template_deployer.py

Source:template_deployer.py

...1203            parameters.update({p["ParameterKey"]: p for p in change_set.metadata["Parameters"]})1204        # TODO: unclear/undocumented behavior in implicitly updating old_stack parameter here1205        old_stack.metadata["Parameters"] = [v for v in parameters.values() if v]1206    # TODO: fix circular import with cloudformation_api.py when importing Stack here1207    def construct_changes(1208        self,1209        existing_stack,1210        new_stack,1211        initialize=False,1212        change_set_id=None,1213        append_to_changeset=False,1214    ):1215        from localstack.services.cloudformation.cloudformation_api import StackChangeSet1216        old_resources = existing_stack.template["Resources"]1217        new_resources = new_stack.template["Resources"]1218        deletes = [val for key, val in old_resources.items() if key not in new_resources]1219        adds = [val for key, val in new_resources.items() if initialize or key not in old_resources]1220        modifies = [val for key, val in new_resources.items() if key in old_resources]1221        changes = []1222        for action, items in (("Remove", deletes), ("Add", adds), ("Modify", modifies)):1223            for item in items:1224                item["Properties"] = item.get("Properties", {})1225                change = self.get_change_config(action, item, change_set_id=change_set_id)1226                changes.append(change)1227        # append changes to change set1228        if append_to_changeset and isinstance(new_stack, StackChangeSet):1229            new_stack.changes.extend(changes)1230        return changes1231    def apply_changes(1232        self,1233        existing_stack,1234        new_stack,1235        stack_name,1236        change_set_id=None,1237        initialize=False,1238        action=None,1239    ):1240        old_resources = existing_stack.template["Resources"]1241        new_resources = new_stack.template["Resources"]1242        action = action or "CREATE"1243        self.init_resource_status(old_resources, action="UPDATE")1244        # apply parameter changes to existing stack1245        self.apply_parameter_changes(existing_stack, new_stack)1246        # construct changes1247        changes = self.construct_changes(1248            existing_stack,1249            new_stack,1250            initialize=initialize,1251            change_set_id=change_set_id,1252        )1253        # check if we have actual changes in the stack, and prepare properties1254        contains_changes = False1255        for change in changes:1256            res_action = change["ResourceChange"]["Action"]1257            resource = new_resources.get(change["ResourceChange"]["LogicalResourceId"])1258            if res_action != "Modify" or self.resource_config_differs(resource):1259                contains_changes = True1260            if res_action in ["Modify", "Add"]:1261                self.merge_properties(resource["LogicalResourceId"], existing_stack, new_stack)...

init.py

Source:init.py

...415        from pocketlab.methods.config import construct_changes, construct_setup416        manifest_text = retrieve_template('models/python.manifest.in.txt')417        mkdocs_text = retrieve_template('models/mkdocs.yaml.txt')418        module_files = {419            'CHANGES.rst': construct_changes(),420            'MANIFEST.in': replace_text(manifest_text, replacement_map=replacement_map),421            'mkdocs.yml': replace_text(mkdocs_text, replacement_map=replacement_map),422            'setup.py': construct_setup(service_name, replacement_map['<org-name>'])423        }424        if module_type == 'node':425            module_files = {426                'CHANGELOG.md': construct_changes(module_type),427                '.coveralls.yml': retrieve_template('models/coveralls.yml.txt'),428                '.babelrc': retrieve_template('models/babelrc.txt')429            }430            if init_jquery:431                webpack_text = retrieve_template('models/jquery.webpack.config.js.txt')432                module_files['karma.config.js'] = retrieve_template('models/karma.config.js.txt')433                module_files['webpack.config.js'] = replace_text(434                    webpack_text,435                    replacement_map=replacement_map436                )437        for key, value in module_files.items():438            if not path.exists(key):439                with open(key, 'wt', encoding='utf-8') as f:440                    f.write(value)...

config.py

Source:config.py

...495        init_text += "__url__ = 'https://github.com/<org-name>/pocketlab'\n"496        init_text += "__description__ = '<service-description>'\n"497        498    return init_text499def construct_changes(type='python'):500# retrieve changes text501    if type == 'node':502        file_text = retrieve_template('models/changelog.md.txt')503    else:504        file_text = retrieve_template('models/changes.rst.txt')505# retrieve date506    from datetime import datetime507    new_date = datetime.utcnow()508    new_month = str(new_date.month)509    new_day = str(new_date.day)510    if len(new_month) == 1:511        new_month = '0%s' % new_month512    if len(new_day) == 1:513        new_day = '0%s' % new_day514    date_string = '%s.%s.%s' % (str(new_date.year), new_month, new_day)515# replace date516    file_text = file_text.replace('2001.01.01', date_string)517    return file_text518def construct_license(license_type='mit', replace_map=None):519# retrieve license text520    file_path = 'models/license.%s.txt' % license_type521    file_text = retrieve_template(file_path)522# retrieve date523    from datetime import datetime524    new_date = datetime.utcnow()525    new_year = str(new_date.year)526# replace terms in license527    file_text = file_text.replace('2017', new_year)528    file_text = replace_text(file_text, replacement_map=replace_map)529    return file_text530if __name__ == '__main__':531    standard_path = '../models/heroku-config.json'532    from labpack.records.settings import load_settings533    standard_schema = load_settings(standard_path)534    text = compile_yaml(standard_schema)535    # print(text)536    init_path = '../__init__.py'537    readme_path = '../../README.rst'538    setup_kwargs = inject_init(init_path, readme_path, {})539    # print(setup_kwargs)540    setup_text = open('../../setup.py').read()541    new_text = update_setup(setup_text)542    # print(new_text)543    module_name = 'newmodule'544    setup_text = construct_setup(module_name)545    # print(setup_text)546    init_text = construct_init(module_name)547    # print(init_text)548    readme_text = construct_readme(framework_type='python')549    # print(readme_text)550    service_text = construct_readme(replacement_map={'.gitignore': '.hgignore'})551    # print(service_text)552    manifest_text = construct_manifest(module_name)553    # print(manifest_text)554    changes_text = construct_changes()555    # print(changes_text)556    license_text = construct_license()557    # print(license_text)558    mkdocs_text = construct_mkdocs(module_name)559    # print(mkdocs_text)560    index_text = construct_index(module_name)...

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