libmv VS git-sizer

• Open Source
  Libmv is an open-source library, which means it is freely available for modification and distribution, enabling a wide range of developers to contribute to its improvement and customization.
• Integration with Blender
  Libmv is used in Blender, a popular 3D modeling software, particularly in the motion tracking domain, allowing artists and developers to easily incorporate its capabilities in their workflow.
• Focus on Structure from Motion
  The library is specifically designed for computer vision tasks such as structure from motion and camera tracking, offering specialized algorithms that can be highly beneficial for these applications.

Possible disadvantages

• Limited Documentation
  Libmv's documentation is limited and not very comprehensive, which can pose a challenge for developers looking to understand its structure and implement it effectively.
• Community Support
  Despite being open-source, libmv does not have a very large community of active users, which can make it difficult to get user support or find resources such as tutorials and troubleshooting advice.
• Development Activity
  The development activity on libmv has decreased over time, which might impact the introduction of new features, performance improvements, and timely responses to bugs or issues.

• Comprehensive Repository Analysis
  git-sizer analyzes many different dimensions of a Git repository including commit count, tree size, blob size, history depth, and reference counts, providing a holistic view of repository health and potential scaling issues.
• Easy to Use
  The tool is simple to run with minimal setup—just execute it within a git repository—and it produces clear, human-readable output that highlights potential problem areas without requiring complex configuration.
• Identifies Performance Bottlenecks
  It helps identify specific issues that could degrade Git performance, such as excessively large blobs, deep history, large trees, or too many references, which is valuable before migrating or scaling repositories.
• Open Source and Maintained by GitHub
  Being an official GitHub project, it benefits from credibility, community trust, and ongoing maintenance, and it is well documented with clear explanations of what each metric means.
• Useful for Pre-Migration Checks
  It's particularly helpful for teams migrating repositories to new platforms or consolidating repos, as it flags potential issues that could cause problems during migration or with hosting providers' limits.

Possible disadvantages

• No Automatic Remediation
  git-sizer only identifies and reports issues but does not offer any built-in tools or automated processes to fix problems like large blobs or excessive history depth—users must use separate tools like BFG Repo-Cleaner or git-filter-repo.
• Output Can Be Overwhelming for Beginners
  While detailed, the output includes many metrics and threshold levels that may be confusing for users unfamiliar with Git internals, requiring some learning curve to fully interpret results.
• Limited to Local Analysis
  The tool analyzes a local clone of the repository, so it requires users to have a full local copy of the repo (or at least enough history) to get accurate results, which can be time-consuming for very large repositories.
• No Real-Time Monitoring
  It functions as a one-time analysis tool rather than providing continuous or real-time monitoring of repository health, requiring manual reruns to track changes over time.
• Command-Line Only Interface
  The tool lacks a graphical user interface, which may be less accessible for users who prefer visual dashboards or are less comfortable with command-line tools.

No analysis of libmv yet.

Tracking libmv since Mar 2021.

• how to keep github repos small?

  Also there’s a cool project from GitHub you can use to help understand the size of git’s objects in your git repo https://github.com/github/git-sizer. This might help you determine what the best cloning strategy could be. Source: about 5 years ago