Temporary file creation support

[feliperce]

Hello, it's possible to create a temporary file like in jvm File.createTempFile()?

[JakeWharton]

You can use https://kotlin.github.io/kotlinx-io/kotlinx-io-core/kotlinx.io.files/-system-temporary-directory.html to get the location of the system temp dir. Producing a random file name, creating the file, and (optionally) deleting it when you're done are up to you using the regular FS APIs.

[JakeWharton]

Kotlin 2.0.20's Uuid.random() is an excellent source of randomness for a name suffix, btw!

[feliperce]

You can use https://kotlin.github.io/kotlinx-io/kotlinx-io-core/kotlinx.io.files/-system-temporary-directory.html to get the location of the system temp dir. Producing a random file name, creating the file, and (optionally) deleting it when you're done are up to you using the regular FS APIs.

You can use https://kotlin.github.io/kotlinx-io/kotlinx-io-core/kotlinx.io.files/-system-temporary-directory.html to get the location of the system temp dir. Producing a random file name, creating the file, and (optionally) deleting it when you're done are up to you using the regular FS APIs.

Woow, I hadn't found that, thank you!
it worked

[fzhinkin]

Reopening the issue as it still makes sense to have a built-in function for temp file creation.

[JakeWharton]

Maybe consider changing SystemFileSystem from a val to an object, so that this creation function and other APIs like that temp path can be hung off of it?

[cloudshiftchris]

Maybe consider changing SystemFileSystem from a val to an object, so that this creation function and other APIs like that temp path can be hung off of it?

This forces all temporary files into that one location; it may be the case that one wants to create temp files elsewhere.

[JakeWharton]

That's correct, and is the entire point of the temporary path provided by the OS which is available solely on the system file system.

If you want to create a temporary file elsewhere on the system file system or within file systems other than the system file system then you are free to do so on your own.