Scratch files and scratch buffers help you to reduce clutter in your main project while keeping your focus on your current task. However, they are temporary files so please treat them as such:Ĭheck anything important into version control if you want to keep hold of it! Summary We can use Ctrl+ Shift+ E on Windows/Linux or ⇧⌘E on macOS to see them in our Recent Locations, and we can filter this dialog by changed areas too.Įven though scratch files and buffers are not in source control, IntelliJ IDEA still tracks their changes locally. Tips for Useīoth scratch files and buffers are treated in a similar way to other files in IntelliJ IDEA. Tip: You can create a shortcut for the New Scratch Buffer action as described in Configuring keyboard shortcuts. When we select Groovy and click Return, IntelliJ IDEA will render the file accordingly. We can fix that by right-clicking on buffer2.txt and selecting Change Language. For example, we can type some Groovy code into our buffer2.txt file but we won’t get any IDE help because it’s initially a text file. We can also change the language of scratch buffers to benefit from the IDE-aware functionality. If we create another scratch buffer this time around, we get a blank buffer2.txt because we renamed the previous one. For example, we can rename our buffer2.text to database-connection.txt. We can rename our scratch buffers to something more meaningful and then it won’t count towards our allowance of 5. If we try and create more, IntelliJ IDEA will prompt us and overwrite the contents of the first scratch buffer. This is the maximum number of scratch buffers that we can have with the default name. The second will be called buffer2.txt and so forth up to buffer5.txt. The first scratch buffer that you create is called buffer1.txt. Scratch buffers in IntelliJ IDEA use a default naming convention. We can create a scratch buffer by using Ctrl+ Shift+ A on Windows/Linux or ⇧⌘A on macOS then typing in scratch and selecting New Scratch Buffer. In IntelliJ IDEA, you need to attach a scratch file to the query console. Tip: To run an SQL scratch file, you need to have a connection to a data source. We recommend you rename your scratch files to something that’s more meaningful for you. Once a scratch file is part of a specific project, it will no longer be visible in the scratch files directory in the project, or any other. Scratch files can be moved to a project by dragging and dropping it into our project or pressing F6 to refactor the file. Then, start typing in HTML to filter the list and once we press return, IntelliJ IDEA will render the contents correctly. We can also change the language of a scratch file, for example, we can change a text file to HTML by right-clicking on it and selecting Change Language. We can start typing in the file type that we’re looking for, for example Kotlin, and then create our code using the normal IDE functionality we’d expect, including running it. We can create a scratch file by using Ctrl+ Alt+ Shift+ Insert on Windows/Linux or ⌘⇧N on macOS. Scratch files are all IDE aware with syntax highlighting, code completion and all other features for the corresponding files type. Scratch files can be of various types including Java, Kotlin, HTML, etc. They are available from any IDE and project that uses this configuration directory. Tip: Scratch files and buffers are stored in the IDE configuration directory under scratches. However, they will be removed if you restore your default settings or reinstall IntelliJ IDEA. Scratch files and buffers are temporary files but they will persist when you restart IntelliJ IDEA even if you invalidate your caches. If you create them in one project, they will appear in your other projects in the same location (provided you’re using the same version of IntelliJ IDEA). Scratch files and buffers are available across your projects in IntelliJ IDEA. We can view our scratch files and buffers in the Project Window in the Scratches folder under Scratches and Consoles. They’re useful for making quick notes, a todo list or frequently used strings. Alternatively, scratch buffers are plain text files. They’re useful for drafting up code or running code in isolation. Scratch files are fully functional, runnable and debuggable files. Scratch files and buffers are temporary files that are helpful for a range of uses. What Are Scratch Files and Scratch Buffers? This provides an easy way for people to skim the content quickly if they prefer reading to watching, and to give the reader/watcher code samples and links to additional information. This blog post covers the same material as the video with some additional tips and tricks. In this blog, we’re going to take a look at both scratch files and scratch buffers and identify their key uses.
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