Function get_git_diff_since_version

scripts/release.py:106–201

Get git diff with full content since the previous version.

(previous_version: Optional[str])

def get_git_diff_since_version(previous_version: Optional[str]) -> str:
    """Get git diff with full content since the previous version."""
    if previous_version:
        try:
            # Get commit messages and full diff since the previous tag
            print(f"🔍 Analyzing changes since v{previous_version}...")

            # First get the commit log
            commits_cmd = f"git log v{previous_version}..HEAD --oneline --no-merges"
            commits_output = run_cmd(commits_cmd, capture_output=True, check=False)

            # Then get the actual diff content (limit to avoid overwhelming output)
            diff_cmd = (
                f"git diff v{previous_version}..HEAD --no-merges --stat --summary"
            )
            diff_summary = run_cmd(diff_cmd, capture_output=True, check=False)

            # Get more detailed diff for key files (exclude large generated files and release notes)
            # Limit to 300 lines to keep Claude prompts manageable
            detailed_diff_cmd = f"git diff v{previous_version}..HEAD --no-merges -- '*.py' '*.ts' '*.tsx' '*.js' '*.md' '*.yml' '*.yaml' '*.json' '*.toml' ':!releases/'"
            detailed_diff_raw = run_cmd(
                detailed_diff_cmd, capture_output=True, check=False
            )

            # Limit detailed diff to 300 lines
            if detailed_diff_raw:
                lines = detailed_diff_raw.split("\n")
                if len(lines) > 300:
                    detailed_diff = (
                        "\n".join(lines[:300])
                        + f"\n\n... (truncated {len(lines) - 300} lines for brevity)"
                    )
                else:
                    detailed_diff = detailed_diff_raw
            else:
                detailed_diff = detailed_diff_raw

            if commits_output:
                result = f"""COMMIT MESSAGES:
{commits_output}

DIFF SUMMARY:
{diff_summary or 'No summary available'}

DETAILED CHANGES (Python, TypeScript, configs, docs):
{detailed_diff or 'No detailed changes available'}"""
                return result
            elif commits_output:
                return f"COMMIT MESSAGES:\n{commits_output}"
        except Exception as e:
            print(f"⚠️  Error getting diff since {previous_version}: {e}")

    # Fallback: get recent commits and diff
    try:
        print("🔍 Analyzing recent changes (last 20 commits)...")

        # Get recent commit messages
        commits_cmd = "git log --oneline --no-merges -20"