What is sonarlint

What is sonarlint DEFAULT

SonarLint: Your first line of defense for quality and secure code

SonarLint helps you detect and fix Bugs, Code Smells, and Security Vulnerabilities in-IDE.

It supports C#, VB.NET, C, C++, JS, and TS. The extension highlights coding flaws on the fly and provides clear guidance to fix issues before code is committed.

What is SonarLint

SonarLint is a Free and Open Source IDE extension that identifies and helps you fix Code Quality and Code Security issues as you code. Analogous to a spell checker, SonarLint squiggles flaws and provides real-time feedback and clear remediation guidance so you can deliver clean code from the get-go.

SonarLint for Visual Studio is more than your average linting tool.

  • Scans code written in C#, VB.NET, C, C++, Javascript, TypeScript.

  • Open source JavaScript, TypeScript, C# & VB.NET code analyzers.

  • C and C++ support for Application, Dynamic Library and Static Library types of MSBuild (.vcxproj) projects

  • Deep code analysis algorithms using pattern matching and dataflow analysis

  • Hundreds of language-specific static code analysis rules, and growing

  • In-context help and remediation guidance with detailed examples

    Highlights issues in your code, tells you why they are harmful, and how they should be fixed

SonarLint provides Visual Studio developers a comprehensive in-IDE solution for improving the quality and security of the code they deliver.

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Get Started with SonarLint

After you download SonarLint, simply open a project, start coding and SonarLint will start analyzing your issues.

You can also check out the SonarLint documentation here.


Why SonarLint

With unparalleled support for C#, VB.NET, C, C++, JavaScript, and TypeScript, SonarLint performs on-the-fly smart analysis to ensure that the code you deliver is always high quality and secure.

  • Instant feedback on coding issues

    SonarLint provides immediate feedback on Bugs, Code Smells, and Security Vulnerabilities as you code.

  • Hundreds of language-specific rules with clear guidance

    SonarLint provides you with all the information on why the highlighted issue is problematic and how to fix it. With clear remediation guidance and plenty of detailed examples, addressing issues is simple and intuitive.

    Check out the language specific rules:

  • Fast and Precise Analysis

    High precision analysis means fewer false positives and false negatives, providing consistent, reliable results.

  • Helps you grow in your development journey

    Aside from detecting issues and providing useful cues to fix the issues, the insights provided by SonarLint support better code ownership so that as a developer you will begin to recognize those mistakes and remember to prevent them in the future.

SonarLint for Teams

SonarLint works great as a standalone tool but you can take it to the next level by connecting it with SonarQube or SonarCloud. SonarQube and SonarCloud analyze Pull Requests and branches in your DevOps platform (BitBucket, GitHub, Microsoft Azure, GitLab) and perform non-disruptive code quality and security checks to reliably track your codebase health.

The 'connected mode' configuration ties SonarLint's continuous Code Quality and Code Security analysis from IDE to the entire CI/CD workflow and back again to your IDE.

  • Common expectations for Code Quality and Code Security

    Applied rules and analysis settings from SonarQube/SonarCloud are extended to SonarLint so that teams can coalesce on a shared definition of code health.

  • More rule coverage

    When paired with SonarQube or SonarCloud, you can benefit from additional rules for security vulnerabilities and security hotspots in IDE to identify issues earlier.

  • Smart notifications for improved quality and delivery

    'Connected mode' sends smart alerts to individuals/teams when new issues are discovered. With everyone in the loop, issues can be addressed promptly, improving the overall software quality and delivery.

Have questions or need to report issues or provide suggestions? Stay connected with us on the SonarSource Community Forum.

Our strong open source commitment

Since 2007 to present, SonarSource has invested in working closely with our community to provide code quality and security tooling that directly empower developers to deliver better software.

Check out the source code on GitHub or view our issue tracker. If you are interested in contributing, visit our contributing page.


Copyright 2016-2020 SonarSource.

Licensed under the GNU Lesser General Public License, Version 3.0

Sours: https://marketplace.visualstudio.com/items?itemName=SonarSource.SonarLintforVisualStudio2017

SonarLint - Fix Issues Before They Exist

SonarLint is an IDE extension that helps you detect and fix quality issues as you write code. Like a spell checker, SonarLint squiggles flaws so that they can be fixed before committing code.

Why it matters

Code Quality is an integral part of any software pipeline nowadays. It's about preventing bugs from impacting end users, preventing security vulnerabilities from making it to the open world, and also easing the maintainability of your code. Static Code Analysis plays an essential role here.

Static code analysis typically happens as part of a Continuous Integration (CI) pipeline. All standard CI engines (e.g. Jenkins, Travis CI, Azure DevOps etc.) allow for many different build/test/analysis tools to be part of the pipeline. But that means the code must be committed into the repository and submitted to the CI server before it can be analysed.

At SonarSource, we've been writing code analyzers for more than a decade. And along the journey of offering CI-friendly tools (SonarQube and SonarCloud, enabling Continuous Code Quality across more than 25 languages), we rapidly wondered: what if we could provide code quality feedback to developers earlier in the process? We envisioned a spell-checker type tool that would instantaneously report quality issues when you write code! That's how SonarLint was born.

SonarLint to the rescue

SonarLint is an IDE extension that helps you detect and fix quality issues as you write code. It is open source, totally free and supports multiple IDE flavors. For Eclipse, you can get it directly from the Eclipse Marketplace, and it will then detect new bugs and quality issues as you code (in Java, JavaScript, PHP and Python).

Getting started with SonarLint in Eclipse is very simple: you install it from the Eclipse Marketplace, keep on coding, and SonarLint will let you know whenever it sees a bug/vulnerability in the file being edited.

SonarLint provides a fully integrated experience. When an issue is found, it is reported and explained in-line:

A dedicated view also gives you the big picture on all issues in the file::

And in case you wish to understand more about the rule being violated, detailed documentation is available right in Eclipse. In fact, let's take a closer look at how SonarLint can really serve as a great learning tool to discover coding best practices.

Learn from your mistakes

Over ten years of building code analyzers, we've developed a solid quality model split between 3 domains:

  • Reliability: avoiding bugs and undefined behavior
  • Security: avoid vulnerabilities, breaches and attacks
  • Maintainability: Ease code updates and increase developer velocity

When SonarLint reports an issue, it will always tell you if it's a bug (reliability), a vulnerability (security) or a code smell (maintainability). This allows you to rapidly understand the risks involved, and provides a true learning opportunity with the rule description:

The content there is a constant opportunity to learn more about common coding pitfalls along with tricky issues that you've possibly never considered. Each rule comes with its own detailed description, examples and even references. You'll often have fun digging into the specifics of an issue.

To top it all off, SonarLint provides Issues Locations when needed: guiding you through the different steps and different data manipulation, that lead to a bug.

Such in-code insights, together with rich rule descriptions, let you gain a profound understanding of how your code might behave, while continuously improving your coding skills.

The start of a journey

There's much more to say about SonarLint, and this post is just a starting point. It's the start of a Continuous Code Quality journey, where you'll discover how static code analysis can be simple and yet powerful in its positive impact and learning opportunity.

Throughout that journey you'll also discover that SonarLint offers additional features to always stay in control (e.g. configuring active rules, excluding files), and also to share the good vibes with your team (Connecting with SonarQube or SonarCloud, to share a common team definition of code quality and expand it to more coding languages and setups).

We're confident you'll fully enjoy the ride, and by all means give us feedback! Our products are open, our static analysis rules are open, and our community is open: community.sonarsource.com.

Sours: https://www.eclipse.org/community/eclipse_newsletter/2019/march/sonarlint.php
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More than your average linting tool

Your current linting tools may come with overhead – specialized tools for languages or longer setup and config time. With SonarLint, you can settle on a single solution to address your Code Quality and Code Security issues. We have you covered with hundreds of unique, language-specific rules to catch Bugs, Code Smells, and Security Vulnerabilities right in the IDE, as you code.

SonarLint Fits right in your IDE of choice
Security Analysis

See issues in context with rule descriptions along with clear guidance and code examples on how to fix them.

Latest News

Highlighting all the impacted locations in your codebase provides a clear view of issues to address.

Latest News

On-the-fly, high-precision analysis means fewer false positives and consistent, reliable results.

SonarLint Fits right in your IDE of choice

Growth through your development journey

From dangerous regex patterns to non-compliant coding standards, SonarLint is your true confidante in delivering error-free code. With an intelligent tool by your side, your mistakes are only visible to you so you can understand them, quickly remediate them, and learn along the way.

We want to empower developers of all skill levels to be confident in the clean and safe code they deliver.

Connected mode

Bring your team on board

Now that you are addicted - get the rest of your team hooked. SonarLint isn't just about your code, it's also an opportunity to bring your passion for quality code to the whole team.

Learn more
Sours: https://www.sonarlint.org/
SonarLint for Eclipse


Open-source platform for continuous inspection of code quality

SonarQube (formerly Sonar)[3] is an open-source platform developed by SonarSource for continuous inspection of code quality to perform automatic reviews with static analysis of code to detect bugs, code smells, and security vulnerabilities on 20+ programming languages. SonarQube offers reports on duplicated code, coding standards, unit tests, code coverage, code complexity, comments, bugs, and security vulnerabilities.[4][5]

SonarQube can record metrics history and provides evolution graphs. SonarQube provides fully automated analysis and integration with Maven, Ant, Gradle, MSBuild and continuous integration tools (Atlassian Bamboo, Jenkins, Hudson, etc.).[6][7][8]


SonarQube includes support for the programming languages Java(including Android), C#, C, C++, JavaScript, TypeScript, Python, Go, Swift, COBOL, Apex, PHP, Kotlin, Ruby, Scala, HTML, CSS, ABAP, Flex, Objective-C, PL/I, PL/SQL, RPG, T-SQL, VB.NET, VB6, and XML.[9] Some of these are only available via a commercial license.

SonarQube is available for free under the GNU Lesser General Public License. An enterprise version for paid licensing also exists, as well as a data center edition that supports high availability.[10][11]


SonarQube integrates with Eclipse, Visual Studio, Visual Studio Code, and IntelliJ IDEA development environments through the SonarLint plug-ins, and also integrates with external tools like LDAP, Active Directory, GitHub, and others. SonarQube is expandable with the use of plug-ins.[12][13]


In 2009, SonarQube received a Jolt Award under testing tools category.[14][15]

See also[edit]


  1. ^"History | SonarSource". www.sonarsource.com.
  2. ^"What's New in latest releases | SonarQube". www.sonarqube.org.
  3. ^Freddy Mallet (20 March 2013). "SONAR is becoming SONARQUBE". SonarQube project mailing list. Archived from the original on 24 July 2013. Retrieved 3 July 2013.
  4. ^"Sonar"(PDF). Methods and Tools. Vol. 18 no. 1. 2010-03-01. pp. 40–46. ISSN 1661-402X. Retrieved 2017-08-29.
  5. ^Campell/Papapetrou, Ann/Patroklos (2013). Sonar (SonarQube) in action. Greenwich, Connecticut, USA: Manning Publications. p. 350. ISBN .
  6. ^Buijze, Allard (2010-02-26). "Measuring Code Quality With Sonar". Archived from the original on 2011-08-12. Retrieved 2017-08-29.
  7. ^Odendaal, René (2009-06-24). "Continuous Integration on SAP using Subversion, Maven, Hudson, Nexus and Sonar". Archived from the original on 2012-07-24. Retrieved 2017-08-29.
  8. ^Smart, John (2010-03-14). "How can you improve, harmonize and automate your development process using tools like Maven, Hudson, and Nexus?". Retrieved 2017-08-29.
  9. ^"Multi-Language | SonarQube". Retrieved 2021-01-25.
  10. ^"License | SonarQube". www.sonarqube.org. Retrieved 2018-03-28.
  11. ^"Plans & Pricing | SonarSource". www.sonarsource.com. Retrieved 2018-03-28.
  12. ^Mariano (2009-11-17). "Creating a Sonar Plugin for software development metrics". Archived from the original on March 24, 2010. Retrieved 2017-08-29.
  13. ^Hazrati, Vikas (2010-03-30). "Monetizing the Technical Debt". Retrieved 2017-08-29.
  14. ^"Jolt Awards Winners". 2009-03-18. Archived from the original on February 1, 2010. Retrieved 2010-04-13.
  15. ^"Jolt Productivity Award #2: Testing and Debugging". 2010-12-01. Retrieved 2010-12-09.

External links[edit]

Sours: https://en.wikipedia.org/wiki/SonarQube

Sonarlint what is


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