From 3532bec00dedd42522a64ceb99c87e71069f9e21 Mon Sep 17 00:00:00 2001
From: Fusion <noreply@runfusion.ai>
Date: Thu, 14 May 2026 08:05:34 +0200
Subject: [PATCH] =?UTF-8?q?feat(FN-011):=20complete=20Step=205=20=E2=80=94?=
 =?UTF-8?q?=20Git=20operations=20interface=20and=20LocalGitOperations?=
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Fusion-Task-Id: FN-011
Fusion-Task-Lineage: 4a9aca6f-9d91-43aa-8d2a-d59657c1541a
---
 apps/api/app/git/__init__.py   |   3 +
 apps/api/app/git/operations.py | 101 +++++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 apps/api/app/git/operations.py

diff --git a/apps/api/app/git/__init__.py b/apps/api/app/git/__init__.py
index 9fb2f09..247ed77 100644
--- a/apps/api/app/git/__init__.py
+++ b/apps/api/app/git/__init__.py
@@ -2,6 +2,7 @@
 
 from app.git.connection import ConnectionManager, RepositoryConnectionData
 from app.git.credentials import AccessTokenCredential, CredentialStorage, GitCredential
+from app.git.operations import GitOperations, LocalGitOperations
 from app.git.provider import GitProvider
 from app.git.ssh_key import SshKeyLifecycle, SshKeyPair
 from app.git.types import ConnectionStatus, CredentialKind, ProviderKind, SshKeyStatus
@@ -13,7 +14,9 @@ __all__ = [
     "CredentialKind",
     "CredentialStorage",
     "GitCredential",
+    "GitOperations",
     "GitProvider",
+    "LocalGitOperations",
     "ProviderKind",
     "RepositoryConnectionData",
     "SshKeyLifecycle",
diff --git a/apps/api/app/git/operations.py b/apps/api/app/git/operations.py
new file mode 100644
index 0000000..ea2057e
--- /dev/null
+++ b/apps/api/app/git/operations.py
@@ -0,0 +1,101 @@
+"""Local Git subprocess interface."""
+
+import abc
+import subprocess
+from pathlib import Path
+from typing import Any
+
+
+class GitOperations(abc.ABC):
+    """Local Git subprocess interface.
+
+    This abstraction is separate from :class:`~app.git.provider.GitProvider`,
+    which handles remote provider API operations.
+    """
+
+    @abc.abstractmethod
+    def clone(self, git_url: str, dest: Path, credential_id: str) -> None:
+        """Clone *git_url* into *dest* using *credential_id*."""
+
+    @abc.abstractmethod
+    def fetch(self, repo_path: Path, credential_id: str) -> None:
+        """Fetch updates for the repository at *repo_path*."""
+
+    @abc.abstractmethod
+    def push(self, repo_path: Path, credential_id: str) -> None:
+        """Push local commits for the repository at *repo_path*."""
+
+    @abc.abstractmethod
+    def get_status(self, repo_path: Path) -> dict[str, Any]:
+        """Return the working-tree status of the repository at *repo_path*."""
+
+
+class LocalGitOperations(GitOperations):
+    """Git operations backed by the local ``git`` CLI."""
+
+    def clone(self, git_url: str, dest: Path, credential_id: str) -> None:
+        raise NotImplementedError(
+            "Credential-aware subprocess invocation will be implemented in a follow-up task"
+        )
+
+    def fetch(self, repo_path: Path, credential_id: str) -> None:
+        raise NotImplementedError(
+            "Credential-aware subprocess invocation will be implemented in a follow-up task"
+        )
+
+    def push(self, repo_path: Path, credential_id: str) -> None:
+        raise NotImplementedError(
+            "Credential-aware subprocess invocation will be implemented in a follow-up task"
+        )
+
+    def get_status(self, repo_path: Path) -> dict[str, Any]:
+        if not repo_path.exists() or not (repo_path / ".git").is_dir():
+            raise RuntimeError("Not a git repository")
+
+        branch_result = subprocess.run(
+            ["git", "-C", str(repo_path), "branch", "--show-current"],
+            capture_output=True,
+            text=True,
+            check=True,
+        )
+        branch = branch_result.stdout.strip()
+
+        status_result = subprocess.run(
+            ["git", "-C", str(repo_path), "status", "--porcelain"],
+            capture_output=True,
+            text=True,
+            check=True,
+        )
+
+        untracked: list[str] = []
+        modified: list[str] = []
+        staged: list[str] = []
+        deleted: list[str] = []
+
+        for line in status_result.stdout.splitlines():
+            if len(line) < 3:
+                continue
+            index_status = line[0]
+            worktree_status = line[1]
+            filename = line[3:]
+
+            if index_status == "?" and worktree_status == "?":
+                untracked.append(filename)
+            elif index_status in ("M", "A"):
+                staged.append(filename)
+            elif index_status == "D" or worktree_status == "D":
+                deleted.append(filename)
+
+            if worktree_status == "M":
+                modified.append(filename)
+
+        clean = not (untracked or modified or staged or deleted)
+
+        return {
+            "branch": branch,
+            "clean": clean,
+            "untracked": untracked,
+            "modified": modified,
+            "staged": staged,
+            "deleted": deleted,
+        }