feat: scaffold Python project with shared utilities#6
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Add Python package structure with shared utility modules that prevent code duplication across domain modules: - utils/errors: unified exception hierarchy - utils/env: env-var loading & validation - utils/crypto: HMAC-SHA256 helpers - utils/http: GitHub API HTTP helpers - utils/text: regex extraction & input sanitisation Domain modules (config, comment_parser, github_client, webhook_handler) delegate common patterns to utils/ instead of reimplementing them. Includes pyproject.toml, .gitignore, and 44 passing tests. Co-Authored-By: dominicpape <dominicpape@gmx.net>
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Summary
Adds a full Python package structure where every domain module delegates
common patterns to a shared
utils/package, preventing code duplicationfrom the start.
Shared utilities (
src/opencode_github/utils/)errorsOpenCodeError→ConfigError,GitHubAPIError,WebhookValidationError,CommandParseErrorenvget_required_env(name)/get_optional_env(name, default)— typed env-var loading with validationconfigcryptocompute_hmac_sha256(secret, payload)/compare_signatures(a, b)— constant-time HMAC helperswebhook_handlerhttpbuild_headers(token),parse_json_response(resp),create_http_client(token=, base_url=)github_clienttextextract_first_match(pattern, text),sanitize_input(text, max_length=)comment_parser,webhook_handlerDomain modules
config.py—Config.from_env()dataclass, callsutils.envcomment_parser.py—parse_command(body) → ParsedCommand | None, callsutils.textgithub_client.py— async context-managerGitHubClient, callsutils.httpwebhook_handler.py—verify_signature()+parse_event() → WebhookEvent, callsutils.crypto+utils.textTests & tooling
E,F,I,N,W,UP), all passingpyproject.tomlwith[dev]extras,.gitignoreLink to Devin session: https://app.devin.ai/sessions/340db4562f06435694a8a6cb44bbf5e6
Requested by: @Keramikus-97