chore(migration): Migrate code from googleapis/python-cloud-core into packages/google-cloud-core

packages/google-cloud-core/.coveragerc

@@ -0,0 +1,19 @@
+[run]
+branch = True
+
+[report]
+omit =
+    /tmp/*
+    google/cloud/__init__.py
+    google/cloud/_testing/__init__.py
+    google/cloud/environment_vars/__init__.py
+fail_under = 100
+show_missing = True
+exclude_lines =
+    # Re-enable the standard pragma
+    pragma: NO COVER
+    # Ignore debug-only repr
+    def __repr__
+    # Ignore abstract methods
+    raise NotImplementedError
+    raise NotImplementedError()

packages/google-cloud-core/.flake8

@@ -0,0 +1,11 @@
+[flake8]
+import-order-style=google
+# Note: this forces all google imports to be in the third group. See
+# https://github.com/PyCQA/flake8-import-order/issues/111
+application-import-names=google
+ignore = E203, E266, E501, W503, I202
+exclude =
+  __pycache__,
+  .git,
+  *.pyc,
+  conf.py

packages/google-cloud-core/.gitignore

@@ -0,0 +1,64 @@
+*.py[cod]
+*.sw[op]
+
+# C extensions
+*.so
+
+# Packages
+*.egg
+*.egg-info
+dist
+build
+eggs
+.eggs
+parts
+bin
+var
+sdist
+develop-eggs
+.installed.cfg
+lib
+lib64
+__pycache__
+
+# Installer logs
+pip-log.txt
+
+# Unit test / coverage reports
+.coverage
+.nox
+.cache
+.pytest_cache
+
+
+# Mac
+.DS_Store
+
+# JetBrains
+.idea
+
+# VS Code
+.vscode
+
+# emacs
+*~
+
+# Built documentation
+docs/_build
+bigquery/docs/generated
+docs.metadata
+
+# Virtual environment
+env/
+venv/
+
+# Test logs
+coverage.xml
+*sponge_log.xml
+
+# System test environment variables.
+system_tests/local_test_setup
+
+# Make sure a generated file isn't accidentally committed.
+pylintrc
+pylintrc.test

packages/google-cloud-core/.librarian/state.yaml

@@ -0,0 +1,10 @@
+image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:c8612d3fffb3f6a32353b2d1abd16b61e87811866f7ec9d65b59b02eb452a620
+libraries:
+  - id: google-cloud-core
+    version: 2.5.0
+    apis: []
+    source_roots:
+      - .
+    preserve_regex: []
+    remove_regex: []
+    tag_format: v{version}

packages/google-cloud-core/.pre-commit-config.yaml

@@ -0,0 +1,31 @@
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-yaml
+-   repo: https://github.com/psf/black
+    rev: 23.7.0
+    hooks:
+    - id: black
+-   repo: https://github.com/pycqa/flake8
+    rev: 6.1.0
+    hooks:
+    - id: flake8

packages/google-cloud-core/.repo-metadata.json

@@ -0,0 +1,12 @@
+{
+    "name": "google-cloud-core",
+    "name_pretty": "Google API client core library",
+    "client_documentation": "https://cloud.google.com/python/docs/reference/google-cloud-core/latest",
+    "release_level": "stable",
+    "language": "python",
+    "library_type": "CORE",
+    "repo": "googleapis/python-cloud-core",
+    "distribution_name": "google-cloud-core",
+    "default_version": "",
+    "codeowner_team": ""
+}