didericis
824527497c
The agent's ~/.gitconfig now uses insteadOf (not pushInsteadOf), so every git operation against a declared upstream — push, fetch, clone, pull, ls-remote — routes through the gate. Matches the gate's now-bidirectional design: fetch is mirrored via the access-hook, push is gated via gitleaks.
103 lines
3.8 KiB
Python
103 lines
3.8 KiB
Python
"""Git provisioning inside a running Docker bottle.
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Two concerns, both about git in the agent:
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1. If --cwd was passed AND the host cwd has a .git, copy that .git
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into /home/node/workspace/.git so the agent operates on the
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user's repo.
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2. If the bottle declares `git` entries (PRD 0008), write a
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~/.gitconfig with insteadOf rules so every git operation
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against a declared upstream (push, fetch, clone, pull,
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ls-remote) transparently hits the per-agent git-gate. The
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gate mirrors the upstream in both directions, so URL
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rewriting is symmetric.
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"""
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from __future__ import annotations
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import os
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import subprocess
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from pathlib import Path
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from ....log import info
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from ....manifest import GitEntry
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from .. import util as docker_mod
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from ..bottle_plan import DockerBottlePlan
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from ..git_gate import git_gate_host
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def provision_git(plan: DockerBottlePlan, target: str) -> None:
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"""Set up git inside the bottle. Runs both subcases; each no-ops
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when its condition isn't met."""
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_provision_cwd_git(plan, target)
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_provision_git_gate_config(plan, target)
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def _provision_cwd_git(plan: DockerBottlePlan, target: str) -> None:
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"""If --cwd was set and the host cwd has a .git directory, copy
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it into /home/node/workspace/.git and fix ownership. No-op
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otherwise."""
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if not (plan.spec.copy_cwd and Path(plan.spec.user_cwd, ".git").is_dir()):
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return
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container = target
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info(f"copying {plan.spec.user_cwd}/.git -> {container}:/home/node/workspace/.git")
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subprocess.run(
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["docker", "cp", f"{plan.spec.user_cwd}/.git", f"{container}:/home/node/workspace/.git"],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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subprocess.run(
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[
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"docker", "exec", "-u", "0", container,
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"chown", "-R", "node:node", "/home/node/workspace/.git",
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],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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def render_git_gate_gitconfig(slug: str, entries: tuple[GitEntry, ...]) -> str:
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"""Render the ~/.gitconfig content for git-gate `insteadOf`
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rewrites. Pure host-side, no docker; exposed for tests.
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Empty `entries` returns an empty string so callers can no-op
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cleanly without conditional formatting at the call site."""
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if not entries:
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return ""
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gate = git_gate_host(slug)
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out = [
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"# claude-bottle git-gate (PRD 0008): every git operation against\n",
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"# a declared upstream routes through the gate, which mirrors\n",
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"# the upstream bidirectionally (gitleaks-scanned push;\n",
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"# fetch-from-upstream-before-every-upload-pack via access-hook).\n",
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]
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for entry in entries:
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out.append(f'[url "git://{gate}/{entry.Name}.git"]\n')
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out.append(f"\tinsteadOf = {entry.Upstream}\n")
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return "".join(out)
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def _provision_git_gate_config(plan: DockerBottlePlan, target: str) -> None:
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"""Write ~/.gitconfig in the bottle with the git-gate
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insteadOf rules. No-op when the bottle has no `git` entries."""
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bottle = plan.spec.manifest.bottle_for(plan.spec.agent_name)
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if not bottle.git:
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return
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container = target
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container_home = os.environ.get("CLAUDE_BOTTLE_CONTAINER_HOME", "/home/node")
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container_gitconfig = f"{container_home}/.gitconfig"
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content = render_git_gate_gitconfig(plan.slug, bottle.git)
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config_file = plan.stage_dir / "agent_gitconfig"
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config_file.write_text(content)
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config_file.chmod(0o600)
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info(f"writing {container_gitconfig} with {len(bottle.git)} insteadOf rule(s)")
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subprocess.run(
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["docker", "cp", str(config_file), f"{container}:{container_gitconfig}"],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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docker_mod.docker_exec_root(container, ["chown", "node:node", container_gitconfig])
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docker_mod.docker_exec_root(container, ["chmod", "644", container_gitconfig])
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