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docs: edit and reorganize Git Commit Guidelines

Reorganize the Git Commit Guidelines title hierarchy.
Various content edits in the Git Commit Guidelines section:
- Remove the footer section and merge its contents with the body
- Add revert to the list of possible header types
- Change the maximum line length for header and body
- Add instructions about the body's elements order
This commit is contained in:
kehugter 2016-04-03 01:31:52 +02:00
parent b592438426
commit f5c099175c

View File

@ -47,31 +47,21 @@ through the **project history**. But also, we use the git commit messages to
### Commit Message Format
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**:
Each commit message consists of a **header** and a **body**. The header has a special format that
includes a **type**, a **scope** and a **subject**:
```
<type>(<scope>): <subject>
<BLANK LINE>
<body>
<BLANK LINE>
<footer>
```
The **header** is mandatory and the **scope** of the header is optional.
The **header** is mandatory and the **body** is optional. The **scope** of the header is also optional.
Any line of the commit message cannot be longer 100 characters! This allows the message to be easier
to read on GitHub as well as in various git tools.
### Header
The header must be a short (72 characters or less) summary of the changes made.
Note that in the future `gitcop` will be used to check if commits in pull
request conform to commit message format, but since it can't be configured to
have an optional `(<scope>)`, it will claim that messages without it are wrong,
while they're perfectly fine.
### Revert
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 SHA of the commit being reverted.
### Type
#### Type
Must be one of the following:
* **feat**: A new feature
@ -80,27 +70,39 @@ Must be one of the following:
* **style**: Changes that do not affect the meaning of the code (white-space, formatting, etc)
* **refactor**: A code change that neither fixes a bug nor adds a feature
* **perf**: A code change that improves performance
* **revert**: Reverts a previous commit
* **test**: Adding missing tests
* **chore**: Changes to the build process or auxiliary tools and libraries such as documentation
generation
### Scope
The scope could be anything specifying place of the commit change. For example `$location`,
`$browser`, `$compile`, `$rootScope`, `ngHref`, `ngClick`, `ngView`, etc...
##### Revert
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: `Revert commit <hash>.`, where the hash is the SHA of the commit being reverted.
### Subject
#### Scope
The scope could be anything specifying place of the commit change. For example `$location`,
`$browser`, `$compile`, `$rootScope`, `ngHref`, `ngClick`, `ngView`, etc.
#### Subject
The subject contains succinct description of the change:
* use the imperative, present tense: "change" not "changed" nor "changes"
* don't capitalize first letter
* no dot (.) at the end
A properly formed git commit subject line should always be able to complete the following sentence:
> If applied, this commit will ___your subject line here___
### Body
Just as in the **subject**, use the imperative, present tense: "change" not "changed" nor "changes".
Wrap the body at 72 characters whenever possible (for example, don't modify long links to follow this rule). 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.
### Footer
The footer should contain any information about **Breaking Changes** and is also the place to
reference GitHub issues that this commit **Closes**.
The body contains (in order of appearance):
**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.
* A detailed **description** of the committed changes.
* References to GitHub issues that the commit **closes** (e.g., `Closes #000` or `Fixes #000`).
* Any **breaking changes**.
Include every section of the body that is relevant for your commit.
**Breaking changes** should start with the phrase `BREAKING CHANGE:` with a space or two newlines. The rest of the commit message is then used for this.