Add GithubViewCommitHistoryTool with URL support

src/codegen/extensions/langchain/tools.py

@@ -8,6 +8,7 @@
 from codegen.extensions.linear.linear_client import LinearClient
 from codegen.extensions.tools.bash import run_bash_command
 from codegen.extensions.tools.github.checkout_pr import checkout_pr
+from codegen.extensions.tools.github.view_commit_history import view_commit_history
 from codegen.extensions.tools.github.view_pr_checks import view_pr_checks
 from codegen.extensions.tools.linear.linear import (
     linear_comment_on_issue_tool,
@@ -629,6 +630,29 @@ def _run(self, pr_number: int) -> str:
         return result.render()
 
 
+class GithubViewCommitHistoryInput(BaseModel):
+    """Input for viewing commit history."""
+
+    max_results: int = Field(default=20, description="Maximum number of commits to return")
+    path: str | None = Field(default=None, description="Optional path to filter commits by")
+
+
+class GithubViewCommitHistoryTool(BaseTool):
+    """Tool for viewing commit history with URLs."""
+
+    name: ClassVar[str] = "view_commit_history"
+    description: ClassVar[str] = "View the commit history for a repository or specific path with URLs for linking"
+    args_schema: ClassVar[type[BaseModel]] = GithubViewCommitHistoryInput
+    codebase: Codebase = Field(exclude=True)
+
+    def __init__(self, codebase: Codebase) -> None:
+        super().__init__(codebase=codebase)
+
+    def _run(self, max_results: int = 20, path: str | None = None) -> str:
+        result = view_commit_history(self.codebase, max_results=max_results, path=path)
+        return result.render()
+
+
 ########################################################################################################################
 # LINEAR
 ########################################################################################################################
@@ -838,6 +862,7 @@ def get_workspace_tools(codebase: Codebase) -> list["BaseTool"]:
         GithubCreatePRCommentTool(codebase),
         GithubCreatePRReviewCommentTool(codebase),
         GithubViewPRTool(codebase),
+        GithubViewCommitHistoryTool(codebase),
         GithubSearchIssuesTool(codebase),
         # Linear
         LinearGetIssueTool(codebase),

src/codegen/extensions/tools/github/__init__.py

@@ -2,12 +2,14 @@
 from .create_pr_comment import create_pr_comment
 from .create_pr_review_comment import create_pr_review_comment
 from .search import search
+from .view_commit_history import view_commit_history
 from .view_pr import view_pr
 
 __all__ = [
     "create_pr",
     "create_pr_comment",
     "create_pr_review_comment",
     "search",
+    "view_commit_history",
     "view_pr",
 ]

src/codegen/extensions/tools/github/view_commit_history.py

@@ -0,0 +1,66 @@
+"""Tool for viewing commit history with URLs."""
+
+from typing import ClassVar, Optional
+
+from pydantic import Field
+
+from codegen.sdk.core.codebase import Codebase
+
+from ..observation import Observation
+
+
+class CommitHistoryObservation(Observation):
+    """Response from viewing commit history."""
+
+    commits: list[dict] = Field(
+        description="List of commits with their details including URLs",
+    )
+
+    str_template: ClassVar[str] = "Found {total} commits"
+
+    @property
+    def total(self) -> int:
+        return len(self.commits)
+
+
+def view_commit_history(
+    codebase: Codebase,
+    max_results: int = 20,
+    path: Optional[str] = None,
+) -> CommitHistoryObservation:
+    """Get the commit history for a repository or specific path.
+
+    Args:
+        codebase: The codebase to operate on
+        max_results: Maximum number of commits to return
+        path: Optional path to filter commits by
+    """
+    try:
+        # Get the GitHub repo object
+        repo = codebase._op.remote_git_repo
+
+        # Get commits
+        commits_data = []
+        commits = repo.repo.get_commits(path=path)
+
+        for commit in commits[:max_results]:
+            commit_data = {
+                "sha": commit.sha,
+                "message": commit.commit.message,
+                "author": commit.commit.author.name,
+                "date": commit.commit.author.date.isoformat(),
+                "url": commit.html_url,  # Include the URL for linking
+            }
+            commits_data.append(commit_data)
+
+        return CommitHistoryObservation(
+            status="success",
+            commits=commits_data,
+        )
+
+    except Exception as e:
+        return CommitHistoryObservation(
+            status="error",
+            error=f"Failed to get commit history: {e!s}",
+            commits=[],
+        )