2016-08-08 15:22:45 +02:00
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Contributing to PowerShell
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========================
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2016-01-20 20:33:57 +01:00
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2016-07-28 01:31:07 +02:00
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We welcome and appreciate contributions from the community.
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There are many ways to become involved with PowerShell:
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including filing issues,
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joining in design conversations,
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writing and improving documentation,
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and contributing to the code.
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Please read the rest of this document to ensure a smooth contribution process.
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2016-03-14 20:03:04 +01:00
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New to Git?
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-----------
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* Make sure you have a [GitHub account](https://github.com/signup/free).
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* Learning Git:
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* GitHub Help: [Good Resources for Learning Git and GitHub][good-git-resources].
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* [Git Basics](../docs/git/basics.md):
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install and getting started.
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* [GitHub Flow Guide](https://guides.github.com/introduction/flow/):
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step-by-step instructions of GitHub flow.
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Quick Start Checklist
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---------------------
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* Review the [Contribution License Agreement][CLA] requirement.
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* Get familiar with the [PowerShell repository](../docs/git).
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2016-01-20 20:33:57 +01:00
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2016-07-11 18:42:22 +02:00
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Contributing to Issues
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----------------------
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* Review [Issue Management][issue-management].
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* Check if the issue you are going to file already exists in our [GitHub issues][open-issue].
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* If you can't find your issue already,
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[open a new issue](https://github.com/PowerShell/PowerShell/issues/new),
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making sure to follow the directions as best you can.
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* If the issue is marked as [`0 - Backlog`][help-wanted-issue],
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the PowerShell maintainers are looking for help with the issue.
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2016-03-15 01:25:57 +01:00
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2016-06-24 19:34:32 +02:00
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Contributing to Documentation
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-----------------------------
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2016-08-03 20:06:36 +02:00
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### Contributing to documentation related to PowerShell
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Please see the [Contributor Guide in `PowerShell/PowerShell-Docs`](https://github.com/PowerShell/PowerShell-Docs/blob/staging/CONTRIBUTING.md).
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### Contributing to documentation related to maintaining or contributing to the PowerShell project
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2016-07-28 01:31:07 +02:00
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* When writing Markdown documentation, use [semantic linefeeds][].
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In most cases, it means "one clause/idea per line".
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* Otherwise, these issues should be treated like any other issue in this repo.
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Contributing to Code
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--------------------
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### Building and testing
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#### Building PowerShell
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Please see [Building PowerShell](../README.md#building-the-repository).
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#### Testing PowerShell
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Please see PowerShell [Testing Guidelines - Running Tests Outside of CI][running-tests-outside-of-ci] on how to test you build locally.
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### Finding or creating an issue
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1. Follow the instructions in [Contributing to Issues][contribute-issues] to find or open an issue.
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2. Mention in the issue that you are working on the issue and ask `@powershell/powershell` for an assignment.
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### Forks and Pull Requests
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GitHub fosters collaboration through the notion of [pull requests][using-prs].
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On GitHub, anyone can [fork][fork-a-repo] an existing repository
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into their own user account, where they can make private changes to their fork.
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To contribute these changes back into the original repository,
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a user simply creates a pull request in order to "request" that the changes be taken "upstream".
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Additional references:
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* GitHub's guide on [forking](https://guides.github.com/activities/forking/)
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* GitHub's guide on [Contributing to Open Source](https://guides.github.com/activities/contributing-to-open-source/#pull-request)
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* GitHub's guide on [Understanding the GitHub Flow](https://guides.github.com/introduction/flow/)
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### Lifecycle of a pull request
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2016-08-13 03:19:12 +02:00
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#### Before submitting
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* To avoid merge conflicts, make sure your branch is rebased on the `master` branch of this repository.
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* Many code changes will require new tests,
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so make sure you've added a new test if existing tests do not effectively test the code changed.
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* Clean up your commit history.
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Each commit should be a **single complete** change.
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This discipline is important when reviewing the changes as well as when using `git bisect` and `git revert`.
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#### Pull request submission
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**Always create a pull request to the `master` branch of this repository**.
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![Github-PR-dev.png](Images/Github-PR-dev.png)
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2016-08-03 20:06:36 +02:00
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* If you're contributing in a way that changes the user or developer experience, you are expected to document those changes.
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See [Contributing to documentation related to PowerShell](#contributing-to-documentation-related-to-powershell).
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* Add a meaningful title of the PR describing what change you want to check in.
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Don't simply put: "Fixes issue #5".
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A better example is: "Add Ensure parameter to New-Item cmdlet", with "Fixes #5" in the PR's body.
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* When you create a pull request,
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including a summary of what's included in your changes and
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if the changes are related to an existing GitHub issue,
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please reference the issue in pull request description (e.g. ```Closes #11```).
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See [this][closing-via-message] for more details.
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2016-08-13 03:19:12 +02:00
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* If the change warrants a note in the [changelog](../CHANGELOG.MD)
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either update the changelog in your pull request or
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add a comment in the PR description saying that the change may warrant a note in the changelog.
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New changes always go into the **Unreleased** section.
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Keeping the changelog up-to-date simplifies the release process for maintainers.
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An example:
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```
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Unreleased
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----------
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* `Update-Item` now supports `-FriendlyName`.
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```
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Please use the present tense and imperative mood when describing your changes:
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* Instead of "Adding support for Windows Server 2012 R2", write "Add support for Windows Server 2012 R2".
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* Instead of "Fixed for server connection issue", write "Fix server connection issue".
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This form is akin to giving commands to the code base,
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and is recommended by the Git SCM developers.
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It is also used in the [Git commit messages](#common-engineering-practices).
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Also, if change is related to a specific resource, please prefix the description with the resource name:
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2016-07-28 01:31:07 +02:00
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* Instead of "New,parameter 'ConnectionCredential' in New-SqlConnection",
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write "New-SqlConnection: added parameter 'ConnectionCredential'".
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#### Pull Request - Automatic Checks
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* If this is your first contribution to PowerShell,
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you may be asked to sign a [Contribution Licensing Agreement][CLA] (CLA)
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before your changes will be accepted.
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* Make sure you follow the [Common Engineering Practices](#common-engineering-practices)
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and [testing guidelines](../docs/testing-guidelines/testing-guidelines.md).
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* After submitting your pull request,
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our [CI system (Travis CI and AppVeyor)][ci-system]
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will run a suite of tests and automatically update the status of the pull request.
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#### Pull Request - Code Review
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* After a successful test pass,
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the area maintainers will do a code review,
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commenting on any changes that might need to be made.
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* Additional feedback is always welcome!
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Even if you are not designated as an area's maintainer,
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feel free to review others' pull requests anyway.
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Leave your comments even if everything looks good;
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a simple "Looks good to me" or "LGTM" will suffice.
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This way we know someone has already taken a look at it!
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* Once the code review is done,
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all merge conflicts are resolved,
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and the CI system build status is passing,
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a maintainer will merge your changes.
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* For more information on the the PowerShell maintainers' process,
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see the [documentation](../docs/maintainers).
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2016-06-24 19:34:32 +02:00
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Making Breaking Changes
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-----------------------
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When you make code changes,
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please pay attention to these that can affect the [Public Contract](../docs/dev-process/breaking-change-contract.md).
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For example, changing PowerShell parameters, APIs, or protocols break the public contract.
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Before making changes to the code,
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first review the [breaking changes contract](../docs/dev-process/breaking-change-contract.md)
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and follow the guidelines to keep PowerShell backward compatible.
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2016-06-24 19:34:32 +02:00
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Making Design Changes
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---------------------
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To add new features such as cmdlets or making design changes,
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please follow the [PowerShell Request for Comments (RFC)](https://github.com/PowerShell/PowerShell-RFC) process.
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Common Engineering Practices
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----------------------------
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2016-08-01 20:37:15 +02:00
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Other than the guidelines for ([coding](../docs/dev-process/coding-guidelines.md),
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the [RFC process](https://github.com/PowerShell/PowerShell-RFC) for design,
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[documentation](#contributing-to-documentation) and [testing](../docs/testing-guidelines/testing-guidelines.md)) discussed above,
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we encourage contributors to follow these common engineering practices:
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2016-07-28 01:31:07 +02:00
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* Format commit messages following these guidelines:
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```
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Summarize change in 50 characters or less
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Similar to email, this is the body of the commit message,
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and the above is the subject.
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Always leave a single blank line between the subject and the body
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so that `git log` and `git rebase` work nicely.
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The subject of the commit should use the present tense and
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imperative mood, like issuing a command:
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> Makes abcd do wxyz
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The body should be a useful message explaining
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why the changes were made.
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If significant alternative solutions were available,
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explain why they were discarded.
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Keep in mind that the person most likely to refer to your commit message
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is you in the future, so be detailed!
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As Git commit messages are most frequently viewed in the terminal,
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you should wrap all lines around 72 characters.
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Using semantic line feeds (breaks that separate ideas)
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is also appropriate, as is using Markdown syntax.
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```
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2016-07-28 01:31:07 +02:00
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* These are based on Tim Pope's [guidelines](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html),
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Git SCM [submitting patches](https://git.kernel.org/cgit/git/git.git/tree/Documentation/SubmittingPatches),
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Brandon Rhodes' [semantic linefeeds][],
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and John Gruber's [Markdown syntax](https://daringfireball.net/projects/markdown/syntax).
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* Don't commit code that you didn't write.
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If you find code that you think is a good fit to add to PowerShell,
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file an issue and start a discussion before proceeding.
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* Create and/or update tests when making code changes.
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* Run tests and ensure they are passing before pull request.
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* All pull requests **must** pass CI systems before they can be approved.
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* Avoid making big pull requests.
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Before you invest a large amount of time,
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file an issue and start a discussion with the community.
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2016-07-11 18:42:22 +02:00
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Contributor License Agreement (CLA)
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-----------------------------------
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To speed up the acceptance of any contribution to any PowerShell repositories,
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you could [sign a Microsoft Contribution Licensing Agreement (CLA)](https://cla.microsoft.com/) ahead of time.
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If you've already contributed to PowerShell repositories in the past, congratulations!
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You've already completed this step.
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This a one-time requirement for the PowerShell project.
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Signing the CLA process is simple and can be done in less than a minute.
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You don't have to do this up-front.
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You can simply clone, fork, and submit your pull request as usual.
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When your pull request is created, it is classified by a CLA bot.
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If the change is trivial, it's classified as `cla-required`.
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Once you sign a CLA, all your existing and future pull requests will be labeled as `cla-signed`.
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[testing-guidelines]: ../docs/testing-guidelines/testing-guidelines.md
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[running-tests-outside-of-ci]: ../docs/testing-guidelines/testing-guidelines.md#running-tests-outside-of-ci
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[issue-management]: ../docs/maintainers/issue-management.md
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[governance]: ../docs/community/governance.md
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[using-prs]: https://help.github.com/articles/using-pull-requests/
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[fork-a-repo]: https://help.github.com/articles/fork-a-repo/
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[closing-via-message]: https://help.github.com/articles/closing-issues-via-commit-messages/
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[CLA]: #contributor-license-agreement-cla
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[ci-system]: ../docs/testing-guidelines/testing-guidelines.md#ci-system
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[good-git-resources]: https://help.github.com/articles/good-resources-for-learning-git-and-github/
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[contribute-issues]: #contributing-to-issues
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[open-issue]: https://github.com/PowerShell/PowerShell/issues
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[help-wanted-issue]: https://github.com/PowerShell/PowerShell/issues?q=is%3Aopen+is%3Aissue+label%3A%220%20-%20Backlog%22
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[semantic linefeeds]: http://rhodesmill.org/brandon/2012/one-sentence-per-line/
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