Plugin Downloads Statistics Discrepancies in January 2018: post-mortem

As some plugin developers and end-users noticed, there were some discrepancies in both total downloads counts and the detailed plugin downloads statistics available to plugin developers – there was an unusual spike of downloads at the beginning of January 2018.

We started investigating these reports on the morning of 8th January 2018 (CET timezone), and it was fully resolved by the end of the day.

Our investigation showed that our new statistics processing scripts didn’t survive the New Year due to a minor bug, and hadn’t been providing correct numbers from the 2nd of January 2018 onwards (adding the previous stats on top of the current day).

We quickly fixed the scripts and recalculated all the statistics for affected days. The issue should not happen again in the future.

In addition to the fix, we also prepared a “backup solution” as part of the Plugin Repository application. The backup solution allows us to “delay” statistics from a specific date so that it doesn’t break total download counters (which is the most significant impact, as this affects plugin recommendations). We will keep this backup solution in place so that it can be used instantly in case of similar issues.

Thank you for all your reports, and we are sorry for the inconvenience caused.

If you have any suggestions or issues, feel free to send them to us here in comments, post to @JBPlatform Twitter, or drop us an email at plugins-admin@jetbrains.com.

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Export IntelliJ editor themes as plugins

Today, I’d like to highlight a small but very useful feature for IDEs based on the IntelliJ Platform – exporting editor colour schemes as plugins. That’s right, if you have a custom editor scheme defined, you can get your favourite IntelliJ-based IDE to export it as a plugin .jar file, complete with plugin metadata, and upload it directly to the Plugin Repository for others to install and enjoy.

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Migrating IntelliJ’s build to use Maven project libraries

Historically, all libraries used for building IntelliJ have been stored, as JAR files, directly in the IntelliJ git repositories. This approach has several downsides, such as increasing the size of the git repo whenever we need to update to a new version. Also, who wants to manually manage dependencies and versions these days? We’ve recently made some changes to try and improve this situation.

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Improvements in Testing IntelliJ Platform Plugins

Some good news for plugin developers – starting in IntelliJ IDEA 2017.3 EAP 173.2463.16, we’re introducing some improvements and fixes to working with test data. Let’s take a look at what’s new.

For those that don’t know, the IntelliJ Platform comes with a test framework we can use to test language features added by plugins. The tests themselves are functional tests – we run an in-memory, headless version of the IDE that can load test data, such as projects and source files, execute a feature on those files (such as highlighting) and then compare the output of the feature with known good files. If the files match, the test passes. If they don’t, the test fails. More details on this approach can be found in the SDK documentation.

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JetBrains Plugin Repository: Summer Updates

The JetBrains Plugin Repository is an aptly named web service for hosting and finding plugins for IntelliJ-based IDEs and TeamCity, extending the functionality of the products with new features, such as new language, framework or integrations. It’s both a web site and a web service, with a rich front end for searching for new plugins, and an API, used from the IDEs to find and install plugins, and by plugin authors to upload new versions.

As various teams are working on many improvements to the extensibility and plugins at JetBrains, today we’d like to start publishing regular updates on changes introduced on the side of the plugin repository.

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Improvements to Building IntelliJ Platform

We’ve recently made some changes to how we build IntelliJ Platform, specifically in how we handle external dependencies, such as the Kotlin compiler.

IntelliJ Platform is the core code of IntelliJ IDEA, and powers all of our IDEs – IDEA Ultimate, WebStorm, PyCharm, Rider, and so on. It’s also an open source project, making up most of the IntelliJ IDEA Community Edition repo, and can be used to build your own IDEs that make use of IntelliJ’s editors, user interface and infrastructure for projects, rich language parsing, refactoring, navigation, testing and much more, just like Android Studio and the Cursive Clojure IDE do.

Of course, building a product as complex as IntelliJ IDEA Community Edition requires a number of external dependencies, such as the Kotlin compiler and plugin and JetBrains’ own version of the JDK, which contains important fixes for IntelliJ Platform.

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Introducing JetBrains Platform Blog and Twitter for plugin developers

logo_JetBrains_3From its very early days, JetBrains has been dedicated to making its products available as a platform to extend and build upon. To this date, our public plugin repositories feature 2000+ plugins for IntelliJ Platform, 200+ for ReSharper and 300+ for TeamCity, not counting many private plugins, as well as standalone IDEs built on top of IntelliJ Platform.

With so much happening in the plugins and extensions development ecosystem, we are currently working in various directions to make plugin development for all JetBrains products an even more pleasant experience.

To share more news around plugin development and related topics with you, and to discuss our ideas and get feedback, today we are launching several brand-new resources. All are targeting plugin and extension developers for various JetBrains tools, which at this moment include IntelliJ Platform, ReSharper Platform, and TeamCity Platform.

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