Review: commented

--- docs/usage/forge.rst
> @@ -0,0 +1,294 @@
> +Forge Integration
> +=================
> +
> +Patchwork can synchronize patch workflows with code forges such as GitHub.
> +When enabled, patch series submitted to a mailing list are automatically
> +converted into pull requests, and pull requests opened on a forge are converted
> +into patch series on the mailing list. Comments, reviews, and CI results flow
> +in both directions.
> +
> +.. contents::
> +   :local:
> +
> +Overview
> +--------
> +
> +The forge integration provides bidirectional synchronization:
> +
> +**Mailing list to forge:**
> +
> +- A completed patch series creates a pull request on the forge.
> +- Respin submissions (v2, v3, ...) force-push to the same branch and post an
> +  update comment on the existing pull request.
> +- Comments on patches or cover letters are forwarded to the pull request.
> +
> +**Forge to mailing list:**
> +
> +- A pull request opened on the forge generates a patch series email sent to the
> +  mailing list and ingested directly into the Patchwork database.
> +- Respin (force-push) events generate a new version of the patch series with
> +  proper version numbering and optional threading to the original.
> +- Comments and reviews on the pull request are forwarded as email replies to the
> +  series.

Ceci est très faux.

Review: commented

Bof bof.

--- patchwork/forge/__init__.py
> @@ -0,0 +1,175 @@
> +# Patchwork - automated patch tracking system
> +# Copyright (C) 2026 Robin Jarry <robin@jarry.cc>
> +#
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +
> +"""
> +Forge integration framework.
> +
> +Provides an abstraction layer for synchronizing patch workflows between
> +patchwork and code forges (GitHub, GitLab, etc.). Each forge platform is
> +implemented as a backend that registers itself at import time and is only
> +loaded when listed in settings.FORGE_BACKENDS.
> +
> +Backends are responsible for webhook signature verification and event parsing.
> +Sync logic (creating patches from PRs, forwarding comments) is implemented
> +per-backend but can reuse generic utilities from patchwork.forge.sync.
> +
> +Forge-specific dependencies remain entirely optional: a backend module is never
> +imported unless explicitly enabled in settings.

Foobar baz 1.

--- patchwork/forge/__init__.py
> @@ -0,0 +1,175 @@
> +# Patchwork - automated patch tracking system
> +# Copyright (C) 2026 Robin Jarry <robin@jarry.cc>
> +#
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +
> +"""
> +Forge integration framework.
> +
> +Provides an abstraction layer for synchronizing patch workflows between
> +patchwork and code forges (GitHub, GitLab, etc.). Each forge platform is
> +implemented as a backend that registers itself at import time and is only
> +loaded when listed in settings.FORGE_BACKENDS.
> +
> +Backends are responsible for webhook signature verification and event parsing.
> +Sync logic (creating patches from PRs, forwarding comments) is implemented
> +per-backend but can reuse generic utilities from patchwork.forge.sync.
> +
> +Forge-specific dependencies remain entirely optional: a backend module is never
> +imported unless explicitly enabled in settings.
> +"""
> +
> +import importlib
> +import logging
> +from abc import ABC
> +from abc import abstractmethod
> +from dataclasses import dataclass
> +from dataclasses import field
> +
> +from django.conf import settings
> +
> +logger = logging.getLogger(__name__)
> +
> +
> +@dataclass
> +class ForgeUser:
> +    login: str = ''
> +    name: str = ''
> +    email: str = ''
> +
> +
> +@dataclass
> +class ReviewComment:
> +    path: str = ''
> +    diff_hunk: str = ''
> +    body: str = ''
> +
> +
> +@dataclass
> +class CheckRun:
> +    name: str = ''
> +    status: str = ''
> +    url: str = ''
> +    description: str = ''
> +
> +
> +@dataclass
> +class ForgeEvent:
> +    type: str = ''
> +    repo_key: str = ''
> +    pr_number: int = 0
> +    author: ForgeUser = field(default_factory=ForgeUser)
> +    body: str = ''
> +
> +    # review fields
> +    review_id: int = 0
> +    review_state: str = ''
> +
> +    # check fields
> +    check_suite_id: int = 0
> +    check_name: str = ''
> +    check_status: str = ''
> +    check_url: str = ''
> +    check_description: str = ''
> +
> +    # pull request fields
> +    pr_title: str = ''
> +    pr_body: str = ''
> +    pr_head: str = ''
> +    pr_base: str = ''
> +    pr_head_branch: str = ''
> +    pr_action: str = ''
> +    pr_before: str = ''
> +
> +
> +class ForgeBackend(ABC):
> +    """
> +    Base class for forge backend implementations.
> +
> +    Each backend handles webhook signature verification and event parsing for
> +    a specific forge platform (GitHub, GitLab, etc.). Backends register
> +    themselves at import time via register_backend().

Foo 2.

--- patchwork/forge/github/api.py
> @@ -94,3 +94,43 @@ def fetch_check_runs(gh, forge_config, check_suite_id):
>              )
>          )
>      return runs
> +
> +
> +def create_pr(gh, forge_config, title, body, head, base):
> +    """
> +    Create a pull request on GitHub. Return the PR number.
> +    """
> +    owner, repo = forge_config.repo.split('/', 1)
> +    result = gh_api_request(
> +        gh,
> +        forge_config,
> +        'POST',
> +        f'/repos/{owner}/{repo}/pulls',
> +        {'title': title, 'body': body, 'head': head, 'base': base},
> +    )
> +    return result['number']
> +
> +
> +def base_branch(gh, forge_config):
> +    """
> +    Return the default branch of the GitHub repository.
> +    """
> +    owner, repo = forge_config.repo.split('/', 1)
> +    result = gh_api_request(
> +        gh,
> +        forge_config,
> +        'GET',
> +        f'/repos/{owner}/{repo}',
> +    )

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