Developer Toolset for Sonar-* Projects

Toolset for the developers contributing to http://github.com/SonarSource and http://github.com/SonarCommunity repositories.

SonarLint

Dogfooding is a core principle at SonarSource. Installing SonarLint in your favorite IDE is strongly recommended. Any feedback should be provided on:

• for SonarSourcer: the category Dogfooding>SonarLint of the internal forum and/or the Slack channels:
  SonarLint for Eclipse: #squad-ide-eclipse
  SonarLint for IntelliJ: #squad-ide-intellij-family
  SonarLint for Visual Studio: #squad-ide-visualstudio
  SonarLint for Visual Studio Code: #squad-ide-vscode
• for community: the SonarSource forum, using the tag sonarlint.

The "connected mode" feature should also be enabled and configured with https://next.sonarqube.com/ or https://sonarcloud.io, depending on projects.

Eclipse users should also rely on the dogfooding Eclipse Update Site in order to experiment latest milestones:

• Help → Install New Software ...
• Add a repository pointing to https://binaries.sonarsource.com/SonarLint-for-Eclipse/dogfood/
• Initially install the plug-in, to check for updates: Help → Check for Updates

Intellij users should also rely on the development marketplace in order to experiment latest milestones:

• Open Settings → Plugins → Manage plugins repositories
• Add a custom plugin repository pointing to https://repox.jfrog.io/repox/sonarsource-public-builds/org/sonarsource/sonarlint/intellij/sonarlint-intellij/updatePlugins.xml

Git

If you have never used Git before, you need to do some setup first. Run the following commands so that Git knows your name and email.

git config --global user.name "Your Name"
git config --global user.email "your@email.com"

Setup line endings preferences:

# For Unix/Mac users
git config --global core.autocrlf input
git config --global core.safecrlf true

# For Windows users
git config --global core.autocrlf true
git config --global core.safecrlf true

On Windows, you must explicitly tell Git to use long paths so you won't run into issues with files in deeply nested directories:

git config --global core.longpaths true

The merge is working pretty well on small repositories (with move and rename of files). But it's not working on large repositories as the detection of file renaming is O(n²), so we need to update some threshold (more explanations are available in this post : http://blogs.atlassian.com/2011/10/confluence_git_rename_merge_oh_my/) :

git config --global merge.renameLimit 10000

Commit messages

Commits must relate to a JIRA issue. Convention for messages inspired by http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html :

• The first line should be short (72 chars or less) and auto-descriptive in a format " ", for example "SONAR-1937 Code review"
• Write your commit message in present imperative tense: "Fix bug" and not "Fixed bug".
• The second line is blank.
• Next lines optionally define a short summary of changes (wrap them to about 72 chars or so).

Example :

SONAR-2204,SONAR-2259 Fix URL encoding

* For correct URL encoding we must encode parameters on lower level -
in Query itself, but not in concrete implementation of Connector,
because in Query we can distinguish concrete parts of URL.

* Moreover in this case any additional encoding routines in Connector
are useless, so were removed.

If the change concerns a documentation-only change, then prefix it with "DOC ".

GitHub Configuration

The following points must be respected in the GitHub account settings:

• If using your personal Github Account, the sonarsource email address must be set as primary
• Uncheck "Keep my email addresses private"
• The same name must be used in the Github profile and in the local git config key user.name

Eclipse Configuration

Eclipse settings are available in the directory /eclipse.

Imports

sonar-formatter.xml: positions new lines, comments, spaces, parentheses, etc. To be imported in Window > Preferences > Java > Code Style > Formatter.

sonar.importorder: organizes the "import" lines. To be imported in Window > Preferences > Java > Code Style > Organize Imports.

sonar-cleanup.xml: cleans up the code, by organizing imports, formating source code, correcting indentation, etc. To be imported in Window > Preferences > Java > Code Style > Clean Up.

In Windows > Preferences > Java > Editor > Save Actions, check the checkboxes to perform the clean up at every "save" action. The "additional actions" displayed should be configured as well.

junit-templates.xml (optional): defines shortcuts "temp" and "thrown" in the unit tests. To be imported in Window > Preferences > Java > Editor > Template.

Additional Configuration

In Window > Preferences > Maven > Errors/Warnings, set "Plugin execution not covered by lifecycle execution" to "Ignore". This will silence out error messages when importing your Maven projects

On Windows, in Window > Preferences > General > Workspace, set "Text file encoding" to "UTF-8" and "New text file line delimiter" to "Unix".

In order to use the Maven Eclipse integration, you should download the os-maven-plugin and install it as an eclipse plugin (for example by putting it into your eclipse/plugins folder). The download link and installation steps are descriped in the os-maven-plugin readme.

Code Style Configuration for Intellij

Intellij IDEA users must install the plugin Adapter for Eclipse Code Formatter and import Eclipse settings files:

• check the "Use the Eclipse code formatter" option and use sonar-formatter.xml as the Eclipse Java Formatter config file
• check the "From file" option in the "Import order" section and use sonar.importorder

You can either import the code style settings to IntelliJ IDEA by simply importing this scheme in IDEA's code style settings (Editor > 'Code Style' > Java > 'Scheme:' > ⚙️ > 'Import Scheme' > 'IntelliJ IDEA code style XML'), or you can apply the settings manually (see below). The result should be the same.

Go to Preferences/Settings > Editor > General and check the option Ensure every saved file ends with a line break (under the On Save section).

Go to Preferences/Settings > Editor > Code Style > Java > Wrapping and Braces > Method declaration parameter and uncheck Align when multiline

Go to Preferences/Settings > Editor > Code Style > Java > Tabs and Indents and update:

• Tab size: 2
• Indent: 2
• Continuation indent: 2

Go to Preferences/Settings > Editor > Code Style > Java > JavaDoc > Other and uncheck Generate "<p>" on empty lines

Go to Preferences/Settings > Editor > Code Style > Kotlin > Tabs and Indents and update:

• Continuation indent: 4

Go to Preferences/Settings > Editor > Code Style > Kotlin > Imports and update:

• Check Use single name import in Top-Level Symbols
• Check Use single name import in Java Statics and Enum Members
• Remove all entries from the list Packages to Use Imports with '*'

Go to Preferences/Settings > Editor > Code Style > Kotlin > Other and update:

• Check Use trailing comma

For Kotlin, we use the default 140 character line length.

Go to Preferences/Settings > Editor > Code Style > XML > Tabs and Indents and update:

• Tab size: 2
• Indent: 2
• Continuation indent: 2

Then go to Preferences/Settings > Editor > Code Style > XML > Other and set/check:

• Hard wrap at 140
• Keep line breaks in text
• Keep white spaces

In order to correctly format build.gradle files, code style for Groovy has to be set.

Then go to Preferences/Settings > Editor > Code Style > Groovy and set/check:

• Tab size: 2
• Indent: 2
• Continuation indent: 2

IDEA must also be manually configured for imports : Preferences/Settings > Editor > Code Style > Java > Imports

• Class count to use import with '*'" -> 999
• Names count to use static import with '*' -> 999
• Remove both lines from Packages to Use Import with '*'
• Import Layout
  • import all other imports
  • <blank line>
  • import static all other imports

Then go to Preferences/Settings > Editor > General > Auto import and check "Optimize imports on the fly" for Java:

For Javascript (Typescript)

Setup imports to sort correctly:

We use a tool called Prettier. In order to ensure it functions correctly, install the Prettier plugin. Once installed set the files as such:

Then to make sure prettier is run correctly, modify the on save actions:

For Scala:

Go to Preferences/Settings > Editor > Code Style > Scala > Imports and update:

• Class count to use import with '_' -> 999
• Ensure Merge imports with the same prefix into one statement is checked
• Ensure to have the following Import Layout (it should be the default):

(Optional) Build Configuration for Intellij

If the project uses maven and you experience problems with the built-in build system (Build ➡️ Rebuild Project) like long build times or build failures, you should delegate the build to maven. Make sure to skip tests during the build: