`gmuse.commit`#

Commit message generation service.

This module provides the core business logic for generating commit messages. It orchestrates git operations, prompt building, and LLM interaction.

Public API: - generate_message: Main entry point for generating commit messages - gather_context: Collect context from git repository

Data Classes: - GenerationContext: Context gathered for generation - GenerationResult: Result of message generation

Module Contents#

Classes#

`GenerationContext`	Context gathered for commit message generation.
`GenerationResult`	Result of commit message generation.

Functions#

`gather_context`	Gather all context needed for commit message generation.
`generate_message`	Generate a commit message from staged changes.

Data#

`logger`
`DEFAULT_MAX_DIFF_BYTES`	Default maximum diff size in bytes (~5000 tokens).

API#

gmuse.commit.logger = 'get_logger(...)'#

gmuse.commit.DEFAULT_MAX_DIFF_BYTES: Final[int] = 20000#

Default maximum diff size in bytes (~5000 tokens).

This serves as the default value but can be overridden via configuration using max_diff_bytes parameter.

class gmuse.commit.GenerationContext#

Context gathered for commit message generation.

This dataclass encapsulates all the information collected from the git repository that is used to generate a commit message.

Attributes: diff: Staged changes from git history: Recent commit history for style context (None if empty) repo_instructions: Project-level guidance from .gmuse file (None if absent) branch_info: Current branch information (None if not included or unavailable) diff_was_truncated: Whether the diff was truncated to fit limits

diff: gmuse.git.StagedDiff = None#

history: Optional[gmuse.git.CommitHistory] = None#

repo_instructions: Optional[gmuse.git.RepositoryInstructions] = None#

branch_info: Optional[gmuse.git.BranchInfo] = None#

diff_was_truncated: bool = False#

class gmuse.commit.GenerationResult#

Result of commit message generation.

Attributes: message: The generated commit message text context: The context that was used for generation

message: str = None#

context: gmuse.commit.GenerationContext = None#

gmuse.commit.gather_context(history_depth: int = 5, max_diff_bytes: int = DEFAULT_MAX_DIFF_BYTES, include_branch: bool = False, branch_max_length: int = 60) → gmuse.commit.GenerationContext#

Gather all context needed for commit message generation.

This function collects staged changes, commit history, repository instructions, and optionally branch information needed to generate a contextually appropriate commit message.

Args: history_depth: Number of recent commits to fetch for style context max_diff_bytes: Maximum diff size in bytes before truncation include_branch: Whether to include current branch information branch_max_length: Maximum length for branch summary

Returns: GenerationContext with all gathered information

Raises: NotAGitRepositoryError: If not in a git repository NoStagedChangesError: If no files are staged

gmuse.commit.generate_message(config: gmuse.config.ConfigDict, hint: Optional[str] = None, context: Optional[gmuse.commit.GenerationContext] = None, credential_lookup_timeout: float | None = None) → gmuse.commit.GenerationResult#

Generate a commit message from staged changes.

This is the main entry point for commit message generation. It orchestrates context gathering, prompt building, and LLM interaction.

Args: config: Merged configuration dictionary hint: Optional user hint for message generation context: Pre-gathered context (if None, will be gathered automatically)

Returns: GenerationResult with the message and context used

Raises: NotAGitRepositoryError: If not in a git repository NoStagedChangesError: If no files are staged LLMError: If LLM interaction fails InvalidMessageError: If generated message fails validation

Example: >>> from gmuse.config import merge_config >>> config = merge_config() >>> result = generate_message(config, hint=”security fix”) >>> print(result.message) ‘fix(auth): patch XSS vulnerability in login form’

gmuse.commit#