Why This Merge Is Necessary?

common prompt that appears in version control systems (VCS), such as Git and Mercurial, when a developer attempts to merge two branches or commits. The prompt serves as a reminder and a requirement for the developer to provide a clear and concise message that explains the reasons and effects of the merge, and helps other developers and stakeholders understand the changes and the context. In this article, we will examine the purpose and benefits of the commit message prompt, provide examples of good and bad messages, and discuss the best practices and guidelines for writing effective commit messages.

Purpose and Benefits

The “Please Enter A Commit Message To Explain Why This Merge Is Necessary” prompt serves several purposes and benefits, such as:

  1. Documentation: The commit message serves as a form of documentation that records the changes made in the merge, and explains the reasons and context behind the changes. The commit message is often the first thing that other developers and stakeholders read when reviewing the code, and helps them understand the intentions and effects of the merge. The commit message also helps the future maintainers of the codebase to trace the history and evolution of the code, and to avoid repeating the same mistakes or issues.
  2. Communication: The commit message also serves as a means of communication between the developer who made the merge and other developers and stakeholders who may be affected by the changes. The commit message should be clear and concise, and should use a language and format that are understandable and informative. The commit message should also address any concerns or questions that the other developers or stakeholders may have, and should provide a way to contact the developer for further discussion or feedback.
  3. Accountability: The commit message also serves as a way for the developer to take responsibility for the changes and to demonstrate their professionalism and integrity. The commit message should be honest and accurate, and should avoid any misleading or incomplete information. The commit message should also adhere to the standards and conventions of the project or the organization, and should reflect the best practices and values of the developer and the community.

Examples of Good and Bad Messages

A good commit message should follow some general guidelines and best practices, such as:

  1. Start with a summary or title that briefly describes the changes and the purpose of the merge. The summary should be concise and specific, and should avoid vague or ambiguous terms. Example: “Add support for OAuth 2.0 authentication”.
  2. Provide a detailed description of the changes, the rationale, and the implications of the merge. The description should be structured and organized, and should use a clear and logical language. Example: “This merge adds a new feature that allows users to authenticate using OAuth 2.0 providers such as Google, Facebook, and GitHub. The feature uses a secure and scalable implementation that follows the OAuth 2.0 specification and best practices. The feature also includes a new configuration option that enables or disables the OAuth 2.0 provider, and a new error handling mechanism that notifies the user of any authentication issues.”
  3. Include any relevant links, references, or issues that are related to the merge, and that may help other developers or stakeholders understand or verify the changes. Example: “This merge addresses issue #1234, which reported a security vulnerability in the previous authentication mechanism. The merge also follows the recommendations and guidelines of the OAuth 2.0 specification

On the other hand, a bad commit message may violate some of the guidelines and best practices, such as:

  1. Use vague or meaningless titles that do not provide any useful information or context. Example: “Update
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