Initial commit

.gitignore

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+# lambda
+package
+function.zip
+
+
+
+
+
+# Created by https://www.toptal.com/developers/gitignore/api/vim,python
+# Edit at https://www.toptal.com/developers/gitignore?templates=vim,python
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+pytestdebug.log
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+doc/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+### Vim ###
+# Swap
+[._]*.s[a-v][a-z]
+!*.svg  # comment out if you don't need vector files
+[._]*.sw[a-p]
+[._]s[a-rt-v][a-z]
+[._]ss[a-gi-z]
+[._]sw[a-p]
+
+# Session
+Session.vim
+Sessionx.vim
+
+# Temporary
+.netrwhist
+*~
+# Auto-generated tag files
+tags
+# Persistent undo
+[._]*.un~
+
+# End of https://www.toptal.com/developers/gitignore/api/vim,python

Makefile

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+.PHONY: all
+all: lambda
+
+.PHONY: requirements
+requirements: requirements-to-freeze.txt
+	@python3 -c 'print("Updating requirements.txt...")'
+	@docker run --rm -v $$(pwd):/usr/src/app/ python:3.8 /bin/bash -c "python -m pip install --upgrade pip && pip install -r /usr/src/app/requirements-to-freeze.txt && pip freeze > /usr/src/app/requirements.txt"
+
+.PHONY: clean
+clean: clean-python
+
+.PHONY: clean-python
+clean-python:
+	@# Prepending each recipe with - to continue regardless of errors per
+	@# https://www.gnu.org/software/make/manual/html_node/Errors.html
+	@-find . -type d -name '__pycache__' -exec rm -rf {} +
+	@-find . -type d -name '.mypy_cache' -exec rm -rf {} +
+	@-find . -type d -name '.pytest_cache' -exec rm -rf {} +
+	@-find . -type f -name '*.pyc' -delete
+
+.PHONY: lambda
+lambda: clean
+	@docker run --rm -v $$(pwd):/usr/src/app/ python:3.8 /bin/bash -c "cd /usr/src/app/ && apt-get update && apt-get -y --no-install-recommends install zip && python -m pip install --upgrade pip && zip function.zip lambda_function.py && pip install --target ./package -r requirements.txt && cd package && zip -r9 ../function.zip ."
+	@echo "docker run --rm -it --env-file <(env | grep AWS_) -v $$(pwd):/usr/src/app/ -v ${HOME}/.aws:/root/.aws easy_infra aws lambda update-function-code --function-name release_monitor --zip-file fileb:///usr/src/app/function.zip"

README.md

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+# Release Monitor
+
+This project uses the unauthenticated GitHub APIs to monitor a provided account/repo for a release containing a provided commit.  It is meant to be run as an AWS lambda on a cron, and send an email notification when a release with the provided commit is detected.
+
+## Quickstart
+1. Create a lambda in your AWS account.
+1. Auth to AWS via environment variables.
+1. Run the following:
+```bash
+make
+docker run --rm -it --env-file <(env | grep AWS_) -v $(pwd):/usr/src/app/ -v ${HOME}/.aws:/root/.aws seiso/easy_infra aws lambda update-function-code --function-name release_monitor --zip-file fileb:///usr/src/app/function.zip
+```
+

lambda_function.py

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+#!/usr/bin/env python3
+"""
+Search GitHub to see if a given commit is in a release
+"""
+
+from typing import Dict
+import sys
+from argparse import ArgumentParser
+import requests
+
+def lambda_handler(event, context):
+    """
+    AWS Lambda handler
+    """
+    check_for_commit(account=event["account"], repository=event["repository"], commitish=event["commit"])
+
+
+def main():
+    """
+    Retrieve the arguments and check for the provided commit in the latest release
+    """
+    config = get_args_config()
+
+    check_for_commit(account=config["account"], repository=config["repository"], commitish=config["commit"])
+
+
+def check_for_commit(*, account: str, repository: str, commitish: str) -> bool:
+    """
+    Check a provided account/repo for a commitish
+    """
+    url = "https://api.github.com/repos/" + account + "/" + repository + "/releases/latest"
+    headers = {"Accept": "application/vnd.github.v3+json"}
+
+    response = requests.get(url, headers=headers)
+    latest_release_json = response.json()
+    try:
+        latest_release_sha = latest_release_json["target_commitish"]
+    except KeyError:
+        print("Unable to identify the latest release commitish, are you being rate limited?")
+        sys.exit(1)
+
+    url = "https://api.github.com/repos/" + account + "/" + repository + "/compare/" + commitish + "..." + latest_release_sha
+
+    response = requests.get(url, headers=headers)
+    github_status_json = response.json()
+    try:
+        github_status = github_status_json["status"]
+    except KeyError:
+        print("Unable to identify the comparison status, are you being rate limited?")
+        sys.exit(1)
+
+    if github_status in ("ahead", "identical"):
+        print("YES!  Go update")
+        return True
+
+    print("not yet ;(")
+    return False
+
+
+def get_args_config() -> Dict:
+    """
+    Get the configs passed as arguments
+    """
+    parser = create_arg_parser()
+    return vars(parser.parse_args())
+
+
+def create_arg_parser() -> ArgumentParser:
+    """Parse the arguments"""
+    parser = ArgumentParser()
+    parser.add_argument(
+        "--account", type=str, required=True, help="github account",
+    )
+    parser.add_argument(
+        "--repository", type=str, required=True, help="github repository",
+    )
+    parser.add_argument(
+        "--commit", type=str, required=True, help="commitish to monitor for",
+    )
+    return parser
+
+if __name__ == "__main__":
+    main()

requirements-to-freeze.txt

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+requests

requirements.txt

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+certifi==2020.6.20
+chardet==3.0.4
+idna==2.10
+requests==2.24.0
+urllib3==1.25.10