SonarQube

SonarQube (formerly Sonar) 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.

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

Continuous Inspection

SonarQube provides the capability to not only show the health of an application but also to highlight issues newly introduced. With a Quality Gate in place, you can fix the leak and therefore improve code quality systematically.

❐ Overall health

Your project homepage shows where you stand in terms of quality in a glimpse of an eye. This main page also shows you an immediate sense of the good results achieved over time.

❐ Focus on the Leak

The water leak paradigm is a simple yet powerful way to manage code quality: quality of new - changed and added - code should be put under control before anything else.

Once that Leak is under control, code quality will start improving systematically. In SonarQube, the Leak is a built-in concept that you can’t miss. Once you’ve had a look at this yellow area on the left of your project home page, you will always remain focused on it to not miss any new issues.

❐ Enforce Quality Gate

With SonarQube, a developer has everything at hand to take ownership of the quality of his code. To fully enforce a code quality practice across all teams, you need to set up a Quality Gate.

This core concept of SonarQube is a set of requirements that tell whether or not a new version of a project can go into production. SonarQube’s default Quality Gate checks what happened on the Leak period and fails if your new code got worse in this period.

❐ Analyze pull requests

Once you have SonarQube in place, you will quickly want to make sure you add a few issues as possible to your code base.

To shorten the feedback loop so you don’t have to wait for new analyses to be available on SonarQube, you can set up the analysis of your pull requests.

Analyses will be run on your feature branches without being pushed to SonarQube, giving you the opportunity to fix issues before they ever reach SonarQube!

❐ Branch Analysis

Track the quality of short-lived and long-lived code branches in SonarQube to ensure that only clean, approved code gets merged into master.

❐ Dig into issues

The “Issues” page of your project gives you full power to analyze in detail what the main issues are, where they are located when they were added to your code base and who originally introduced them.

Specifically, you can be notified via email when you introduce new issues, then you simply click on the link in the email to see the set of new issues assigned to you for review.

❐ Highlight hot spots

SonarQube treats test coverage and duplications, two of the major software quality problems, as first class citizens.

The “Measures” page lets you browse your project in different ways to highlight files that need your attention. More generally, for each main domain, SonarQube provides a bubble chart that correlates different metrics to highlight other potential hot spots.

❐ Visualise the history of a project

Thanks to the Activity page you can dig into the details of the history of your project very easily and precisely to better understand what happened in the past.

Use graphs and visualizations to track project quality over time and zoom in on specific time periods for more granular analysis.

Detect Tricky Issues

Our code analyzers are equipped with powerful path sensitive data flow engines to detect tricky issues such as null-pointers dereferences, logic errors, resource leaks...

❐ Detect Bugs

Issues raised by SonarQube are on either demonstrably wrong code or code that is more likely not giving the intended behavior. Find trickiest bugs navigating easily through the code paths while pointing out issues found in multiple locations.

❐ Code Smells

“Smelly” code does (probably) what it should, but it will be difficult to maintain. In the worst cases, it will be so confusing that maintainers can inadvertently introduce bugs. Examples include duplicated code, uncovered code by unit tests and too complex code.

❐ Security Vulnerability

It’s probably Pollyanna-ish to think you’ll never be targeted by hackers. When you are, what vulnerabilities will they find in your system? SonarQube helps you find and track the insecurities in your code. Examples include SQL injection, hard-coded passwords, and badly managed errors.

❐ Activate The Rules You Need

SonarQube code analyzers include default Quality Profiles that offer strong value with non-controversial rule sets. The default Quality Profiles will work for most projects, but you can easily tune them to fully match your needs.

The rules page enables to find rules by multiple criteria, alone or in combination. From the search results, you can activate or deactivate rules in your Quality Profile.

❐ Explore All Execution Paths

SonarQube relies on several path-sensitive dataflow engines and thus code analyzers explore all possible execution paths to spot the trickiest bugs.

Even a simple function containing only 10 different branches might lead to 100 different possible execution paths at runtime. Manually checking that those 100 execution paths are error proof is simply impossible.

Centralize Quality

One place to provide a shared vision of code quality for developers, tech leads, managers and executives in charge of a few to a few thousand projects and also to act as a toll gate for application promotion or release.

All projects in one place

Getting everyone on a team on the same page about quality is hard enough. What happens when you expand the scope to a department or an entire organization? SonarQube enables you to centralize and scale a single vision of code quality.

❐ Shared rulesets

SonarQube offers a central place to view and define the rules used during the analysis of projects. These rulesets are organized in quality profiles. Every member of the organization can see which rules are applied to their project. Every project administrator can choose which quality profile is used for the project.

❐ Unified Quality Gate

SonarQube provides out-of-the-box a default Quality Gate focusing on the Leak concept. This means that the same requirements will be applied across the board to every project - greenfield and legacy; in-house, out-source and off-shore.

❐ Cross projects services

Most services are available to cross projects. For example, as a developer, you can use the issues service to get all new issues assigned to you - across projects - so that you can concentrate on your work. As a technical lead, the projects page lists all your favorite projects and lets you explore them on different axes.

❐ Risk-based views

Executives will use aggregated dashboards which come as part of the Governance product not only to get the big picture about the quality of projects but also to assess their risk: Reliability, Security, and Maintainability; as well as the overall Releasability (Quality Gate adherence).

The timeline charts let you assess changes in project quality over time, or zoom in on a subset of the project history to pinpoint changes in quality gate status.

❐ Parallel report processing

Ensure fast, efficient report generation and processing across multiple fields of analysis…no matter how many projects you have or how complex your reporting requirements are!

DevOps Integration

SonarQube integrates with the entire DevOps toolchain including build systems, CI engines, promotion pipelines... using webhooks and its comprehensive RestAPI.

❐ Build Systems

For dynamic languages like JavaScript, PHP, Python, … executing an analysis is as easy as feeding SonarQube with a bunch of source files. But for languages like Java, C#, C, C++, and Objective-C, there is simply no way to provide accurate results without being part of the build. That’s why built-in integrations are provided for MSBuild, Maven, Gradle, Ant, and Makefiles.

❐ CI Engines

Native integrations with build systems let you easily schedule the execution of an analysis from all CI engines: Jenkins, VSTS, TFS, Travis-CI… Don’t worry if your CI engine isn’t listed here, integration effort will be minimum.

❐ Pass/Fail Notification

Once an analysis is done, a report is sent to the SonarQube server to be integrated. At the end of this integration, a standard webhook mechanism lets you notify any external system to do whatever you want: trigger an alarm, update a wallboard, notify a chat room.

❐ Full Web API

As part of the overall development ecosystem, the SonarQube Web API can be used to automatically provision a SonarQube project, feed a BI tool, monitor SonarQube, etc. Moreover, the list and definition of all the Web API are built in SonarQube.

❐ Promotion Pipelines

Using webhooks, SonarQube can be integrated as a promotion step in your delivery pipelines. This way, you can make sure that only artifacts that pass the Quality Gate will be released and deployed to production.

❐ High Availability

Ensure maximum uptime code quality services for distributed global developer teams and high-volume projects. Test hundreds of millions of lines of code across multiple locations and teams without worrying about downtime or interruption.

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