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Add warnOnNonMainThreadDetected configuration to IOApp #3815

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merged 7 commits into from
Oct 2, 2023
Merged

Add warnOnNonMainThreadDetected configuration to IOApp #3815

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bcc460d
Add warnOnNonMainThreadDetected configuration to IOApp
diogocanut Sep 9, 2023
c564d0c
running prePR
diogocanut Sep 9, 2023
24ce2ca
adding onNonMainThreadDetected
diogocanut Sep 9, 2023
a0c7ecf
adding warnOnNonMainThreadDetected to io-runtime-config
diogocanut Sep 9, 2023
4832606
fix: merge
diogocanut Sep 26, 2023
6feeecf
fix: merge
diogocanut Sep 26, 2023
f9bd7cb
remove stray space
diogocanut Sep 26, 2023
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11 changes: 6 additions & 5 deletions core/jvm/src/main/scala/cats/effect/IOApp.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -337,12 +337,13 @@ trait IOApp {
* isn't the main process thread. This condition can happen when we are running inside of an
* `sbt run` with `fork := false`
*/
def warnOnNonMainThreadDetected: Boolean =
Option(System.getProperty("cats.effect.warnOnNonMainThreadDetected"))
.map(_.equalsIgnoreCase("true"))
.getOrElse(true)

private def onNonMainThreadDetected(): Unit = {
val shouldPrint =
Option(System.getProperty("cats.effect.warnOnNonMainThreadDetected"))
.map(_.equalsIgnoreCase("true"))
.getOrElse(true)
if (shouldPrint)
if (warnOnNonMainThreadDetected)
System
.err
.println(
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