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bot-bottle/bot_bottle/backend/docker/provision/git.py
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didericis-claude 266013095e
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refactor(backend): hoist guest_home to BottlePlan base
Per PR review feedback (review #132): guest_home shouldn't be
buried inside workspace_plan / read from a hardcoded literal in
each provision module. It's a cross-cutting bottle property — the
backend's prepare step knows it, and every downstream consumer
(contrib providers, git provisioning, gitconfig path) should
read it from one place.

- Adds guest_home: str to BottlePlan base dataclass.
- Both backends' prepare steps populate plan.guest_home.
- contrib/{claude,codex}/agent_provider.py read plan.guest_home
  (was plan.workspace_plan.guest_home).
- bot_bottle/backend/docker/provision/git.py reads plan.guest_home
  for the gitconfig destination (was hardcoded "/home/node").
- bot_bottle/backend/smolmachines/provision/git.py drops the
  _GUEST_HOME / _guest_home() helpers and reads plan.guest_home.
- Tests that construct BottlePlan subclasses directly pass
  guest_home="/home/node" explicitly.
2026-06-03 21:35:41 -04:00

107 lines
4.1 KiB
Python

"""Git provisioning inside a running Docker bottle.
Three concerns, all about git in the agent:
1. If --cwd was passed AND the host cwd has a .git, copy that .git
into the planned guest workspace so the agent operates on the
user's repo.
2. If the bottle declares `git` entries (PRD 0008), write a
~/.gitconfig with insteadOf rules so every git operation
against a declared upstream (push, fetch, clone, pull,
ls-remote) transparently hits the per-agent git-gate. The
gate mirrors the upstream in both directions, so URL
rewriting is symmetric.
3. If the bottle declares `git.user` (issue #86), set
`git config --global user.{name,email}` inside the bottle so
the agent's commits are attributed to that identity.
"""
from __future__ import annotations
import shlex
from ....git_gate import GIT_GATE_HOSTNAME, git_gate_render_gitconfig
from ....log import info
from ... import Bottle
from ..bottle_plan import DockerBottlePlan
def provision_git(plan: DockerBottlePlan, bottle: Bottle) -> None:
"""Set up git inside the bottle. Runs all three subcases; each
no-ops when its condition isn't met."""
_provision_cwd_git(plan, bottle)
_provision_git_gate_config(plan, bottle)
_provision_git_user(plan, bottle)
def _provision_cwd_git(plan: DockerBottlePlan, bottle: Bottle) -> None:
"""If --cwd was set and the host cwd has a .git directory, copy
it into /home/node/workspace/.git and fix ownership. No-op
otherwise."""
workspace = plan.workspace_plan
if not (workspace.enabled and workspace.copy_git and workspace.has_host_git_dir):
return
guest_workspace_git = f"{workspace.guest_path}/.git"
host_git = str(workspace.host_path / ".git")
info(f"copying {host_git} -> {bottle.name}:{guest_workspace_git}")
bottle.cp_in(host_git, guest_workspace_git)
bottle.exec(
f"chown -R {shlex.quote(workspace.owner)} {shlex.quote(guest_workspace_git)}",
user="root",
)
def _provision_git_gate_config(plan: DockerBottlePlan, bottle: Bottle) -> None:
"""Write ~/.gitconfig in the bottle with the git-gate
insteadOf rules. No-op when the bottle has no `git` entries."""
manifest_bottle = plan.spec.manifest.bottle_for(plan.spec.agent_name)
if not manifest_bottle.git:
return
container_gitconfig = f"{plan.guest_home}/.gitconfig"
content = git_gate_render_gitconfig(manifest_bottle.git, GIT_GATE_HOSTNAME)
config_file = plan.stage_dir / "agent_gitconfig"
config_file.write_text(content)
config_file.chmod(0o600)
info(f"writing {container_gitconfig} with {len(manifest_bottle.git)} insteadOf rule(s)")
bottle.cp_in(str(config_file), container_gitconfig)
bottle.exec(
f"chown node:node {shlex.quote(container_gitconfig)} && "
f"chmod 644 {shlex.quote(container_gitconfig)}",
user="root",
)
def _provision_git_user(plan: DockerBottlePlan, bottle: Bottle) -> None:
"""Apply `git config --global user.{name,email}` inside the
bottle so the agent's commits are attributed to the operator-
chosen identity instead of the agent image's default
(which is no user — git would refuse to commit at all
until the agent ran its own `git config`).
Runs as the `node` user so `--global` lands in
`/home/node/.gitconfig` (matching the existing
`_provision_git_gate_config` write location). No-op when the
bottle didn't declare `git.user`.
Each field set independently — name-only or email-only
configs only run the `git config` line for the field
present."""
manifest_bottle = plan.spec.manifest.bottle_for(plan.spec.agent_name)
gu = manifest_bottle.git_user
if gu.is_empty():
return
if gu.name:
info(f"git config --global user.name = {gu.name!r}")
bottle.exec(
f"git config --global user.name {shlex.quote(gu.name)}",
user="node",
)
if gu.email:
info(f"git config --global user.email = {gu.email!r}")
bottle.exec(
f"git config --global user.email {shlex.quote(gu.email)}",
user="node",
)