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DOCS Contributing code cleanup
Fixed a few typos and formatting issues, and made git workflow diagram easier to read by hyperlinking it to itself. Also included a few lines from 3.2 branch.
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Jonathon Menz
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@ -1,6 +1,9 @@
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title: Contributing Code
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summary: Fix bugs and add new features to help make SilverStripe better.
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# Contributing Code - Submiting Bugfixes and Enhancements
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SilverStripe will never be finished, and we need your help to keep making it better. If you're a developer a great way to get involved is to contribute patches to our modules and core codebase, fixing bugs or adding feautres.
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SilverStripe will never be finished, and we need your help to keep making it better. If you're a developer a great way to get involved is to contribute patches to our modules and core codebase, fixing bugs or adding features.
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The SilverStripe core modules (`framework` and `cms`), as well as some of the more popular modules are in
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git version control. SilverStripe hosts its modules on [github.com/silverstripe](http://github.com/silverstripe) and [github.com/silverstripe-labs](http://github.com/silverstripe-labs). After [installing git](http://help.github.com/git-installation-redirect) and creating a [free github.com account](https://github.com/signup/free), you can "fork" a module,
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@ -16,11 +19,15 @@ We ask for this so that the ownership in the license is clear and unambiguous, a
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## Step-by-step: From forking to sending the pull request
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<div class="notice" markdown='1'>
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**Note:** Please adjust the commands below to the version of SilverStripe that you're targeting.
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</div>
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1. Install the project through composer. The process is described in detail in "[Installation through Composer](../getting_started/composer#contributing)".
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composer create-project --keep-vcs --dev silverstripe/installer ./my/website/folder 3.1.x-dev
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2. Edit the `composer.json`. Remove the `@stable` markers from the core modules in there.
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2. Edit the `composer.json`. Remove any `@stable` markers from the core modules in there.
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Add your fork URLs, in this example a fork of the `cms` module on the `sminnee` github account
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(replace with your own fork URL). Run a `composer update` afterwards.
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@ -38,14 +45,15 @@ We ask for this so that the ownership in the license is clear and unambiguous, a
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4. [Branch for new issue and develop on issue branch](code#branch-for-new-issue-and-develop-on-issue-branch)
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# verify current branch 'base' then branch and switch
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git status
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git branch ###-description
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git checkout ###-description
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5. As time passes, the upstream repository accumulates new commits. Keep your working copy's master branch and issue branch up to date by periodically [rebasing your development branch on the latest upstream](code#rebase-your-development-branch-on-the-latest-upstream).
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5. As time passes, the upstream repository accumulates new commits. Keep your working copy's branches up to date by periodically [rebasing your development branch on the latest upstream](code#rebase-your-development-branch-on-the-latest-upstream).
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# [make sure all your changes are committed as necessary in branch]
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git fetch upstream
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git rebase upstream/master
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# make sure all your changes are committed as necessary in branch
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git pull --rebase upstream master
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6. When development is complete, [squash all commit related to a single issue into a single commit](code#squash-all-commits-related-to-a-single-issue-into-a-single-commit).
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@ -56,7 +64,7 @@ We ask for this so that the ownership in the license is clear and unambiguous, a
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git push origin ###-description
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8. Issue pull request on GitHub. Visit your forked respoistory on GitHub.com and click the "Create Pull Request" button nex tot the new branch.
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8. Issue pull request on GitHub. Visit your forked repository on GitHub.com and click the "Create Pull Request" button next to the new branch.
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The core team is then responsible for reviewing patches and deciding if they will make it into core. If
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there are any problems they will follow up with you, so please ensure they have a way to contact you!
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@ -74,11 +82,11 @@ A core committer will also "label" your PR using the labels defined in GitHub, t
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The current GitHub labels are grouped into 5 sections:
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1. Changes - These are designed to signal what kind of change they are and how they fit into the [Semantic Versioning](http://semver.org/) schema
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2. Impact - What impact does this bug/issue/fix have, does it break a feature completely, is it just a side effect or is it trivial and not a bit problem (but a bit annoying)
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3. Effort - How much effort is required to fix this issue?
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4. Type - What aspect of the system the PR/issue covers
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5. Feedback - Are we waiting on feedback, if so who from? Typically used for issues that are likely to take a while to have feedback given
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1. *Changes* - These are designed to signal what kind of change they are and how they fit into the [Semantic Versioning](http://semver.org/) schema
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2. *Impact* - What impact does this bug/issue/fix have, does it break a feature completely, is it just a side effect or is it trivial and not a bit problem (but a bit annoying)
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3. *Effort* - How much effort is required to fix this issue?
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4. *Type* - What aspect of the system the PR/issue covers
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5. *Feedback* - Are we waiting on feedback, if so who from? Typically used for issues that are likely to take a while to have feedback given
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| Label | Purpose |
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| ----- | ------- |
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@ -97,9 +105,9 @@ The current GitHub labels are grouped into 5 sections:
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| feedback-required/core-team | Core team members need to give an in-depth consideration |
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| feedback-required/author | This issue is awaiting feedback from the original author of the PR |
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### Workflow Diagram ###
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### Workflow Diagram
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[](http://www.silverstripe.org/assets/doc-silverstripe-org/collaboration-on-github.png)
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### Quickfire Do's and Don't's
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@ -113,7 +121,7 @@ If you're familiar with it, here's the short version of what you need to know. O
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* **A single development branch should represent changes related to a single issue.** If you decide to work on another issue, create another branch.
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* **Squash your commits, so that each commit addresses a single issue.** After you rebase your work on top of the upstream master, you can squash multiple commits into one. Say, for instance, you've got three commits in related to Issue #100. Squash all three into one with the message "Issue #100 Description of the issue here." We won't accept pull requests for multiple commits related to a single issue; it's up to you to squash and clean your commit tree. (Remember, if you squash commits you've already pushed to GitHub, you won't be able to push that same branch again. Create a new local branch, squash, and push the new squashed branch.)
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* **Squash your commits, so that each commit addresses a single issue.** After you rebase your work on top of the upstream master, you can squash multiple commits into one. Say, for instance, you've got three commits in related to Issue #100. Squash all three into one with the message "Description of the issue here (fixes #100)" We won't accept pull requests for multiple commits related to a single issue; it's up to you to squash and clean your commit tree. (Remember, if you squash commits you've already pushed to GitHub, you won't be able to push that same branch again. Create a new local branch, squash, and push the new squashed branch.)
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* **Choose the correct branch**: Assume the current release is 3.0.3, and 3.1.0 is in beta state.
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Most pull requests should go against the `3.1.x-dev` *pre-release branch*, only critical bugfixes
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@ -135,8 +143,7 @@ After you have edited the file, GitHub will offer to create a pull request for y
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* Write [unit tests](../developer_guides/testing/unit_testing)
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* Write [Behat integration tests](https://github.com/silverstripe-labs/silverstripe-behat-extension) for any interface changes
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* Describe specifics on how to test the effects of the patch
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* It's better to submit multiple patches with separate bits of functionality than a big patch containing lots of
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changes
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* It's better to submit multiple patches with separate bits of functionality than a big patch containing lots of changes
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* Only submit a pull request for work you expect to be ready to merge. Work in progress is best discussed in an issue, or on your own repository fork.
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* Document your code inline through [PHPDoc](http://en.wikipedia.org/wiki/PHPDoc) syntax. See our
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[API documentation](http://api.silverstripe.org/3.1/) for good examples.
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@ -154,10 +161,9 @@ This ensures commits are easy to browse, and look nice on github.com
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As we automatically generate [changelogs](http://doc.silverstripe.org/sapphire/en/trunk/changelogs/) from them, we need a way to categorize and filter.
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Please prefix **noteworthy** commit messages with one of the following tags:
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* `NEW`: New feature or major enhancement (both for users and developers)
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* `API`: Addition of a new API, or modification/removal/deprecation of an existing API.
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Includes any change developers should be aware of when upgrading.
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* `BUG`: Bugfix or minor enhancement on something developers or users are likely to encounter.
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* `NEW` New feature or major enhancement (both for users and developers)
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* `API` Addition of a new API, or modification/removal/deprecation of an existing API. Includes any change developers should be aware of when upgrading.
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* `BUG` Bugfix or minor enhancement on something developers or users are likely to encounter.
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All other commits should not be tagged if they are so trivial that most developers
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can ignore them during upgrades or when reviewing changes to the codebase.
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@ -168,6 +174,7 @@ Further guidelines:
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* Each commit should form a logical unit - if you fix two unrelated bugs, commit each one separately
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* If you are fixing a issue from our bugtracker ([cms](http://github.com/silverstripe/silverstripe-framework) and [framework](http://github.com/silverstripe/silverstripe-framework)), please append `(fixes #<ticketnumber>)`
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* When fixing issues across repos (e.g. a commit to `framework` fixes an issue raised in the `cms` bugtracker), include the short or full URL to the issue on github e.g. `(fixes silverstripe/silverstripe-cms#342)` or `(fixes https://github.com/silverstripe/silverstripe-cms/issues/342)` ([details](https://github.com/blog/1439-closing-issues-across-repositories))
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* If your change is related to another commit, reference it with its abbreviated commit hash.
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* Mention important changed classes and methods in the commit summary.
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@ -188,15 +195,14 @@ Example: Good commit message
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### Branch for new issue and develop on issue branch
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Before you start working on a new feature or bugfix, create a new branch dedicated to that one change named by issue number and description. If you're working on Issue #100, a retweet bugfix, create a new branch with the issue number and description, like this:
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Before you start working on a new feature or bugfix, create a new branch dedicated to that one change named by issue number and description. If you're working on Issue #100, a `DataObject::get_one()` bugfix, create a new branch with the issue number and description, like this:
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$ git branch 100-dataobject-get-one
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$ git checkout 100-dataobject-get-one
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$ git checkout -b 100-dataobject-get-one
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Edit and test the files on your development environment. When you've got something the way you want and established that it works, commit the changes to your branch on your local git repo.
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$ git add <filename>
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$ git commit -m 'Issue #100: Some kind of descriptive message'
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$ git commit -m 'Some kind of descriptive message (fixes #100)'
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You'll need to use git add for each file that you created or modified. There are ways to add multiple files, but I highly recommend a more deliberate approach unless you know what you're doing.
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@ -212,13 +218,13 @@ To keep your development branch up to date, rebase your changes on top of the cu
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If you've set up an upstream branch as detailed above, and a development branch called `100-dataobject-get-one`, you can update `upstream` and rebase your branch from it like so:
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# [make sure all your changes are committed as necessary in branch]
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# make sure all your changes are committed as necessary in branch
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$ git fetch upstream
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$ git rebase upstream/master
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Note that the example doesn't keep your own master branch up to date. If you wanted to that, you might take the following approach instead:
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# [make sure all your changes are committed as necessary in branch]
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# make sure all your changes are committed as necessary in branch
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$ git fetch upstream
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$ git checkout master
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$ git rebase upstream/master
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@ -240,7 +246,11 @@ To squash four commits into one, do the following:
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$ git rebase -i upstream/master
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In the text editor that comes up, replace the words "pick" with "squash" next to the commits you want to squash into the commit before it. Save and close the editor, and git will combine the "squash"'ed commits with the one before it. Git will then give you the opportunity to change your commit message to something like, "BUGFIX Issue #100: Fixed DataObject::get_one() parameter order"
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In the text editor that comes up, replace the words "pick" with "squash" or just "s" next to the commits you want to squash into the commit before it.
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Save and close the editor, and git will combine the "squash"'ed commits with the one before it.
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Git will then give you the opportunity to change your commit message to something like, `BUG DataObject::get_one() parameter order (fixes #100)`.
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If you want to discard the commit messages from the commits you're squashing and just use the message from your "pick" commit(s) you can use "fixup" or "f" instead of "squash" to bypass the message editing and make the process a bit quicker.
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Important: If you've already pushed commits to GitHub, and then squash them locally, you will have to force-push to your GitHub again. Add the `-f` argument to your git push command:
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@ -262,6 +272,8 @@ One thing you do not want to do is to issue a git commit with the -a option. Thi
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$ git commit -a
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Sometimes, you might correct an issue which was reported in a different repo. In these cases, don't simply refer to the issue number as GitHub will infer that as correcting an issue in the current repo. See [Commit Messages](code#commit-messages) above for the correct way to reference these issues.
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## What is git rebase?
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Using `git rebase` helps create clean commit trees and makes keeping your code up-to-date with the current state of the upstream master easy. Here's how it works.
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