add git_log_detail tool

src/git/README.md

@@ -94,6 +94,15 @@ Please note that mcp-server-git is currently in early development. The functiona
      - `not_contains` (string, optional): The commit sha that branch should NOT contain. Do not pass anything to this param if no commit sha is specified
    - Returns: List of branches
 
+13. `git_log_detail`
+   - Shows the commit logs with diffs
+   - Inputs:
+     - `repo_path` (string): Path to Git repository
+     - `max_count` (number, optional): Maximum number of commits to show (default: 10)
+     - `start_timestamp` (string, optional): Start timestamp for filtering commits. Accepts ISO 8601 format (e.g., '2024-01-15T14:30:25'), relative dates (e.g., '2 weeks ago', 'yesterday'), or absolute dates (e.g., '2024-01-15', 'Jan 15 2024')
+     - `end_timestamp` (string, optional): End timestamp for filtering commits. Accepts ISO 8601 format (e.g., '2024-01-15T14:30:25'), relative dates (e.g., '2 weeks ago', 'yesterday'), or absolute dates (e.g., '2024-01-15', 'Jan 15 2024')
+   - Returns: The git log output, including the diff for each commit
+
 ## Installation
 
 ### Using uv (recommended)

src/git/src/mcp_server_git/server.py

@@ -57,6 +57,18 @@ class GitLog(BaseModel):
         description="End timestamp for filtering commits. Accepts: ISO 8601 format (e.g., '2024-01-15T14:30:25'), relative dates (e.g., '2 weeks ago', 'yesterday'), or absolute dates (e.g., '2024-01-15', 'Jan 15 2024')"
     )
 
+class GitLogDetail(BaseModel):
+    repo_path: str
+    max_count: int = 10
+    start_timestamp: Optional[str] = Field(
+        None,
+        description="Start timestamp for filtering commits. Accepts: ISO 8601 format (e.g., '2024-01-15T14:30:25'), relative dates (e.g., '2 weeks ago', 'yesterday'), or absolute dates (e.g., '2024-01-15', 'Jan 15 2024')"
+    )
+    end_timestamp: Optional[str] = Field(
+        None,
+        description="End timestamp for filtering commits. Accepts: ISO 8601 format (e.g., '2024-01-15T14:30:25'), relative dates (e.g., '2 weeks ago', 'yesterday'), or absolute dates (e.g., '2024-01-15', 'Jan 15 2024')"
+    )
+
 class GitCreateBranch(BaseModel):
     repo_path: str
     branch_name: str
@@ -103,6 +115,7 @@ class GitTools(str, Enum):
     CREATE_BRANCH = "git_create_branch"
     CHECKOUT = "git_checkout"
     SHOW = "git_show"
+    LOG_DETAIL = "git_log_detail"
 
     BRANCH = "git_branch"
 
@@ -169,6 +182,15 @@ def git_log(repo: git.Repo, max_count: int = 10, start_timestamp: Optional[str]
             )
         return log
 
+def git_log_detail(repo: git.Repo, max_count: int = 10, start_timestamp: Optional[str] = None, end_timestamp: Optional[str] = None) -> str:
+    args = [f'--max-count={max_count}', '--patch-with-stat']
+    if start_timestamp:
+        args.extend(['--since', start_timestamp])
+    if end_timestamp:
+        args.extend(['--until', end_timestamp])
+
+    return repo.git.log(*args)
+
 def git_create_branch(repo: git.Repo, branch_name: str, base_branch: str | None = None) -> str:
     if base_branch:
         base = repo.references[base_branch]
@@ -287,6 +309,11 @@ async def list_tools() -> list[Tool]:
                 description="Shows the commit logs",
                 inputSchema=GitLog.model_json_schema(),
             ),
+            Tool(
+                name=GitTools.LOG_DETAIL,
+                description="Shows the commit logs with diffs",
+                inputSchema=GitLogDetail.model_json_schema(),
+            ),
             Tool(
                 name=GitTools.CREATE_BRANCH,
                 description="Creates a new branch from an optional base branch",
@@ -409,7 +436,19 @@ async def call_tool(name: str, arguments: dict) -> list[TextContent]:
                     type="text",
                     text="Commit history:\n" + "\n".join(log)
                 )]
-
+
+            case GitTools.LOG_DETAIL:
+                log = git_log_detail(
+                    repo,
+                    arguments.get("max_count", 10),
+                    arguments.get("start_timestamp"),
+                    arguments.get("end_timestamp"),
+                )
+                return [TextContent(
+                    type="text",
+                    text=f"Commit logs with diffs:\n{log}"
+                )]
+
             case GitTools.CREATE_BRANCH:
                 result = git_create_branch(
                     repo,

src/git/tests/test_server.py

@@ -1,7 +1,7 @@
 import pytest
 from pathlib import Path
 import git
-from mcp_server_git.server import git_checkout, git_branch, git_add, git_status
+from mcp_server_git.server import git_checkout, git_branch, git_add, git_status, git_log_detail
 import shutil
 
 @pytest.fixture
@@ -97,3 +97,13 @@ def test_git_status(test_repository):
 
     assert result is not None
     assert "On branch" in result or "branch" in result.lower()
+
+def test_git_log_detail(test_repository):
+    initial_commit = test_repository.head.commit
+    result = git_log_detail(test_repository, max_count=1)
+
+    assert initial_commit.hexsha in result
+    assert "initial commit" in result
+    assert "test.txt" in result
+    assert "1 file changed, 1 insertion(+)" in result
+    assert "+test" in result