Pane.capture

rootProject.name = "api-example"

includeBuild("libtmux-source")

plugins {
    kotlin("jvm") version "2.4.10"
    application
}

repositories { mavenCentral() }

dependencies {
    implementation("io.github.libtmux:libtmux-kotlin:0.0.1-alpha.17-SNAPSHOT")
}

java { toolchain { languageVersion.set(JavaLanguageVersion.of(25)) } }
kotlin { jvmToolchain(25) }

application { mainClass.set(providers.gradleProperty("exampleMain")) }

org.gradle.jvmargs=-Xmx2g -XX:MaxMetaspaceSize=768m -Dfile.encoding=UTF-8
kotlin.daemon.jvmargs=-Xmx2g
org.gradle.workers.max=2

#!/bin/sh
set -eu

if [ "$#" -eq 0 ]; then
    printf 'Usage: sh run.sh program [arguments...]\n' >&2
    exit 2
fi
binary=$(command -v "${TMUX_BIN:-tmux}")
mkdir -p /tmp/libtmux-java-dev
directory=$(mktemp -d /tmp/libtmux-java-dev/api.XXXXXX)
socket="$directory/tmux.sock"
config="$directory/tmux.conf"

alive() {
    "$binary" -S "$socket" display-message -p '#{pid}' >/dev/null 2>&1
}

cleanup() {
    status=$?
    trap - 0 HUP INT TERM
    if alive; then
        if ! "$binary" -S "$socket" kill-server; then
            printf 'Cannot stop tmux; kept %s\n' "$directory" >&2
            exit 1
        fi
        attempts=0
        while alive && [ "$attempts" -lt 100 ]; do
            sleep 0.05
            attempts=$((attempts + 1))
        done
        if alive; then
            printf 'tmux is still responding; kept %s\n' "$directory" >&2
            exit 1
        fi
    fi
    rm -rf "$directory" || exit 1
    exit "$status"
}
trap cleanup 0
trap 'exit 1' HUP INT TERM

unset TMUX TMUX_PANE
printf 'set-option -g default-shell /bin/sh\n' > "$config"
"$binary" -S "$socket" -f "$config" new-session -d -s work-one -n editor /bin/cat
"$binary" -S "$socket" split-window -h -t '=work-one:editor' /bin/cat
"$binary" -S "$socket" new-window -d -t '=work-one' -n logs /bin/cat
"$binary" -S "$socket" new-session -d -s work-two -n editor /bin/cat
"$@" "$binary" "$socket" "$config"
"$binary" -S "$socket" has-session -t '=work-one'
"$binary" -S "$socket" has-session -t '=work-two'

package io.github.libtmux.examples.api.kotlin

import io.github.libtmux.ServerConfig
import io.github.libtmux.ServerEndpoint
import io.github.libtmux.SessionSpec
import io.github.libtmux.TextOutcome
import io.github.libtmux.kotlin.*
import java.nio.file.Path
import kotlin.system.exitProcess
import kotlinx.coroutines.runBlocking
import kotlin.time.Duration.Companion.seconds

/** Send input and wait for output before capturing the pane. */
fun main(args: Array<String>) {
    try {
        require(args.size == 3) { "expected: tmux-binary socket-path config-file" }
        val config = ServerConfig.builder()
            .binary(args[0])
            .endpoint(ServerEndpoint.socketPath(Path.of(args[1])))
            .configFile(Path.of(args[2]))
            .build()
        runBlocking {
            withServer(config) { server ->
                val session = server.newSession(
                    SessionSpec.builder().named("api-capture").running("/bin/sh").build()
                )
                val pane = session.windows.first().panes.first()
                pane.sendKeys(listOf("printf 'api-%s\\n' keys", "Enter"))
                check(pane.awaitText("api-keys", timeout = 5.seconds) != TextOutcome.TIMED_OUT) {
                    "timed out waiting for keys output"
                }
                pane.sendLine("printf 'api-%s\\n' line")
                check(pane.awaitText("api-line", timeout = 5.seconds) != TextOutcome.TIMED_OUT) {
                    "timed out waiting for line output"
                }
                val lines = pane.capture()
                for (expected in listOf("api-keys", "api-line")) {
                    check(lines.any { it.trim() == expected }) { "capture is missing $expected" }
                    println(expected)
                }
            }
        }
    } catch (error: Exception) {
        if (error is InterruptedException) Thread.currentThread().interrupt()
        System.err.println("Example failed: ${error.message}")
        exitProcess(1)
    }
}

api-keys
api-line