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feat(gateway): generic plugin hooks for env enablement + cron delivery

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Widen the platform-plugin surface so plugins can self-configure from env
vars and opt into cron home-channel delivery without editing core files.
Closes the scope gap that forced every new platform (Google Chat, Teams,
IRC, future) to either touch gateway/config.py, cron/scheduler.py, and
hermes_cli/config.py or live without env-only setup.

Changes:

- gateway/platform_registry.py: two new optional PlatformEntry fields.
  - env_enablement_fn: () -> Optional[dict]. Called during
    _apply_env_overrides BEFORE the adapter is constructed. Returned
    dict fields are merged into PlatformConfig.extra; the special
    'home_channel' key (if present) becomes a proper HomeChannel
    dataclass on the PlatformConfig.
  - cron_deliver_env_var: name of the *_HOME_CHANNEL env var. When set,
    the plugin platform is a valid cron deliver= target and cron reads
    the env var to resolve the default chat/room ID.

- gateway/config.py: the existing plugin-platform enable pass at the
  bottom of _apply_env_overrides now calls env_enablement_fn and seeds
  extras/home_channel. No effect on plugins that don't set the new
  field.

- cron/scheduler.py: _is_known_delivery_platform and
  _resolve_home_env_var fall through to the registry when the platform
  isn't in the hardcoded built-in sets. New _iter_home_target_platforms
  helper iterates built-ins + plugin platforms for the deliver=origin
  fallback.

- gateway/run.py: _home_target_env_var now consults the new resolver so
  plugin-defined home channels work for non-cron call sites too.

- hermes_cli/config.py: new _inject_platform_plugin_env_vars() sibling
  of _inject_profile_env_vars(). Scans plugins/platforms/*/plugin.yaml
  at import time and contributes entries to OPTIONAL_ENV_VARS so
  'hermes config' UI discovers them. Supports bare-string and rich-dict
  requires_env entries plus a new optional_env list for non-required
  vars (home channels, allowlists).

All additions are strictly opt-in. Existing plugins (IRC, Teams,
image_gen, memory) see zero behavior change until they adopt the new
fields.
This commit is contained in:
Teknium 2026-05-07 06:33:23 -07:00
parent c8e3e39185
commit af9336d575
5 changed files with 220 additions and 11 deletions
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17
gateway/run.py
View file

@ -258,13 +258,18 @@ def _ensure_ssl_certs() -> None:
return
def _home_target_env_var(platform_name: str) -> str:
"""Return the configured home-target env var for a platform."""
from cron.scheduler import _HOME_TARGET_ENV_VARS
"""Return the configured home-target env var for a platform.
return _HOME_TARGET_ENV_VARS.get(
platform_name.lower(),
f"{platform_name.upper()}_HOME_CHANNEL",
)
Consults built-in ``_HOME_TARGET_ENV_VARS`` first, then the plugin
registry via ``cron.scheduler._resolve_home_env_var``, then falls back
to ``<PLATFORM>_HOME_CHANNEL`` for unknown names.
"""
from cron.scheduler import _resolve_home_env_var
resolved = _resolve_home_env_var(platform_name)
if resolved:
return resolved
return f"{platform_name.upper()}_HOME_CHANNEL"
def _home_thread_env_var(platform_name: str) -> str: