Add guidelines to be followed for a meaningful commit message. Fixes: #18
88 lines
3.6 KiB
Markdown
88 lines
3.6 KiB
Markdown
# Commit Message Conventions
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Each commit message consists of a **header**, a **body** and a **footer**. The header has a special format that includes a **type**, a **scope** and a **subject**:
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```
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<type>(<scope>): <subject>
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<BLANK LINE>
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<body>
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<BLANK LINE>
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<footer>
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```
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The **header** is mandatory and the **scope** of the header is optional.
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Any line of the commit message cannot be longer than 100 characters! This allows the message to be easier to read on GitHub as well as in various git tools.
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The footer should contain a [closing reference to an issue](https://help.github.com/articles/closing-issues-via-commit-messages/) if any.
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### Revert
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If the commit reverts a previous commit, it should begin with `revert: `, followed by the header of the reverted commit. In the body it should say: `This reverts commit <hash>.`, where the hash is the commit id of the commit being reverted.
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### Type
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Must be one of the following:
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* **build**: Changes that affect the build system or external dependencies (example scopes: npm, webpack etc)
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* **chore**: Other changes that don't modify src or test files
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* **ci**: Changes to CI configuration files and scripts (example scopes: Travis etc)
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* **docs**: Documentation only changes
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* **feat**: A new feature
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* **fix**: A bug fix
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* **perf**: A code change that improves performance
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* **refactor**: A code change that neither fixes a bug nor adds a feature
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* **style**: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons etc)
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* **test**: Adding missing tests or correcting existing tests
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### Scope
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The scope could be anything specifying place of the commit change or empty. (example: main.scss, login etc)
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### Subject
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The subject contains a brief and clear description of the change:
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* use the imperative, present tense: "change" not "changed" nor "changes"
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* don't capitalize the first letter
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* no dot (.) at the end
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### Body
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Just as in the **subject**, use the imperative, present tense: "change" not "changed" nor "changes". The body should include the motivation for the change and contrast this with previous behavior.
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### Footer
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The footer should contain any information about **Breaking Changes** and is also the place to reference GitHub issues that this commit **Closes**.
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**Breaking Changes** should start with the word `BREAKING CHANGE:` with a space or two newlines. The rest of the commit message is then used for this.
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## Example Commit Message
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```
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feat: Summarize changes in around 50 characters or less
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More detailed explanatory text, if necessary. Wrap it to about 72
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characters or so. In some contexts, the first line is treated as the
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subject of the commit and the rest of the text as the body. The
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blank line separating the summary from the body is critical (unless
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you omit the body entirely); various tools like `log`, `shortlog`
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and `rebase` can get confused if you run the two together.
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Explain the problem that this commit is solving. Focus on why you
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are making this change as opposed to how (the code explains that).
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Are there side effects or other unintuitive consequenses of this
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change? Here's the place to explain them.
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Further paragraphs come after blank lines.
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- Bullet points are okay, too
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- Typically a hyphen or asterisk is used for the bullet, preceded
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by a single space, with blank lines in between, but conventions
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vary here
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If you use an issue tracker, put references to them at the bottom,
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like this:
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Fixes: #123
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See also: #456, #789
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This would automatically notify GitHub to close the issue once the PR
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is merged. Do not do this if the PR solves only a part of the issue.
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```
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