NonInteractiveCliktConsole only reads in the first line from an input file about clikt HOT 10 CLOSED

Thanks for the reports! This is fixed in 4425fe2, which is part of the 2.0.0 release.

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Here's a minimal sample to try:

import com.github.ajalt.clikt.core.CliktCommand
import com.github.ajalt.clikt.output.TermUi.prompt

class Cli : CliktCommand() {

    override fun run() {
        prompt("test1")
        prompt("test2")
    }

}

fun main(args: Array<String>) = Cli().main(args)

How to pipe two lines here without getting a EOF exception?

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I'll take a look. Given that our travis builds run on linux, I'm surprised that the behavior is different. I'd love suggestions on how to improve the test suite so that it can reproduce this problem.

from clikt.

Yeah I just ran the tests myself in the hope of finding the issue, but they passed for me, even when using stdin.provideText("test\ntest\n") instead of the line joining.

When modifying one of the samples to use the code above, I could reproduce the problem though by running:

echo "test
test
" | ./runsample prompt

or

echo "test\ntest\n" | ./runsample prompt

Before thinking about how to add a test here, maybe let's see if you can reproduce the problem.

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Thanks!

from clikt.

I actually think that NonInteractiveCliktConsole needs to be a singleton, or at least the bufferedReader field needs to be a singleton. Otherwise the first NonInteractiveCliktConsole that is created will consume the entire buffer. Thoughts?

from clikt.

Yes, I think you're right. I could add a reader to the command context that could be shared between parameters.

from clikt.

I am still seeing this issue on Linux with version 1.7.0. Neither a multiline bash pipe or sending data with Python works. I am always getting this exception:

Exception in thread "main" java.lang.RuntimeException: EOF
        at com.github.ajalt.clikt.output.NonInteractiveCliktConsole.promptForLine(CliktConsole.kt:63)
        at com.github.ajalt.clikt.output.TermUi.prompt(TermUi.kt:94)
        at com.github.ajalt.clikt.output.TermUi.prompt$default(TermUi.kt:86)

More information: https://code.briarproject.org/briar/briar/issues/1512

Any ideas/hints are welcome!

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Yes, I'm able to reproduce it from the command line.

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So I'm finding that redirecting stdin at all fails to work. For example:

fun main() {
    println(System.`in`.bufferedReader().readLines())
}

prints [] when called with data piped to stdin, regardless of how many lines you give it. I'll have to do some more investigating.

from clikt.