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https://github.com/0xWheatyz/handler.git
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f03b03ab5c
Agents spawned by handler were getting branches several commits behind main. Two compounding causes: sync_project ran 'git pull --ff-only' in the project root, which only moves whichever branch the root checkout happens to be on — an agent parked on a feature branch left origin/* stale (and the pull's 'no tracking information' failure degraded to an easy-to-miss sync_note). Then worktree spawns cut new branches from the root's HEAD, inheriting that stale state. sync_project now fetches origin (refreshing origin/* regardless of the checkout), re-pins origin/HEAD, and fast-forwards the checkout only when it sits on the default branch — a diverged default branch still fails loudly. New worktree branches are cut from origin/HEAD with --no-track so they start at the remote default branch's tip and don't adopt it as upstream. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01V7mF6qeryi9nJthaxYkfPm
86 lines
3.0 KiB
Python
86 lines
3.0 KiB
Python
"""``sync_project`` against real git repos — the fetch-not-pull regression.
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A pull only moves whichever branch the root has checked out; with the root parked on
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an agent's feature branch, ``origin/*`` went stale and every branch cut for a new
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agent started several commits behind the remote's default branch. These tests use a
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filesystem remote (no host, no credentials) so the git behaviour itself is exercised.
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"""
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from __future__ import annotations
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import subprocess
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import pytest
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from handler.control import reposync
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def _git(cwd, *args):
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subprocess.run(["git", "-C", str(cwd), *args], check=True, capture_output=True)
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def _sha(cwd, ref="HEAD") -> str:
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return subprocess.run(
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["git", "-C", str(cwd), "rev-parse", ref],
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check=True, capture_output=True, text=True,
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).stdout.strip()
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@pytest.fixture
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def remote_and_root(tmp_path):
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"""An origin repo, a clone of it as the project root, then origin moves ahead."""
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origin = tmp_path / "origin"
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origin.mkdir()
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_git(origin, "init", "-q", "-b", "main")
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for repo_dir in (origin,):
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_git(repo_dir, "config", "user.email", "t@t.co")
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_git(repo_dir, "config", "user.name", "t")
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_git(repo_dir, "config", "commit.gpgsign", "false")
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_git(origin, "commit", "-q", "--allow-empty", "-m", "one")
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root = tmp_path / "proj"
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subprocess.run(
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["git", "clone", "-q", str(origin), str(root)], check=True, capture_output=True
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)
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_git(root, "config", "user.email", "t@t.co")
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_git(root, "config", "user.name", "t")
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_git(root, "config", "commit.gpgsign", "false")
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_git(origin, "commit", "-q", "--allow-empty", "-m", "two")
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return origin, root
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def _project(origin, root) -> dict:
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return {"id": "p", "root_dir": str(root), "git_remote": str(origin)}
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def test_sync_refreshes_origin_even_when_root_parked_on_agent_branch(
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env, remote_and_root
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):
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origin, root = remote_and_root
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_git(root, "checkout", "-q", "-b", "agent/old-work")
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# Simulate a clone that never had origin/HEAD — sync must re-pin it too.
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_git(root, "remote", "set-head", "origin", "-d")
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result = reposync.sync_project(_project(origin, root))
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assert result["action"] == "pulled"
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assert _sha(root, "origin/main") == _sha(origin, "main")
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assert _sha(root, "refs/remotes/origin/HEAD") == _sha(origin, "main")
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# The parked checkout itself is left alone — only origin/* moves.
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assert _sha(root, "HEAD") != _sha(origin, "main")
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def test_sync_fast_forwards_a_checkout_sitting_on_the_default_branch(
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env, remote_and_root
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):
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origin, root = remote_and_root
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result = reposync.sync_project(_project(origin, root))
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assert result["action"] == "pulled"
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assert _sha(root, "HEAD") == _sha(origin, "main")
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def test_sync_fails_loudly_when_the_default_branch_diverged(env, remote_and_root):
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origin, root = remote_and_root
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_git(root, "commit", "-q", "--allow-empty", "-m", "local divergence")
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with pytest.raises(reposync.SyncError, match="fast-forward"):
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reposync.sync_project(_project(origin, root))
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