ported Bash scripts to Scala-cli

installGatling.sc

@@ -1,21 +1,38 @@
 #!/usr/bin/env -S scala-cli
+//> using dep com.lihaoyi::os-lib:0.10.2
 
 // download Gatling Highcharts Bundle
-// curl -O https://repo1.maven.org/maven2/io/gatling/highcharts/gatling-charts-highcharts-bundle/3.10.5/gatling-charts-highcharts-bundle-3.10.5-bundle.zip
+println("Downloading Gatling 3.10.5 to directory ./gatling")
+println()
+
+val url =
+  "https://repo1.maven.org/maven2/io/gatling/highcharts/gatling-charts-highcharts-bundle/3.10.5/gatling-charts-highcharts-bundle-3.10.5-bundle.zip"
+os.proc("curl", "-O", url).call()
 
 // unzip, cleanup and rename folder
-// unzip gatling-charts-highcharts-bundle-3.10.5-bundle.zip
-// rm gatling-charts-highcharts-bundle-3.10.5-bundle.zip
-// mv gatling-charts-highcharts-bundle-3.10.5 gatling
+os.proc("unzip", "gatling-charts-highcharts-bundle-3.10.5-bundle.zip").call()
+os.proc("rm", "gatling-charts-highcharts-bundle-3.10.5-bundle.zip").call()
+os.proc("mv", "gatling-charts-highcharts-bundle-3.10.5", "gatling").call()
 
-// echo "installed gatling 3.10.5 to directory ./gatling"
+println()
+println("Installed gatling 3.10.5 to directory ./gatling")
+println()
 
 // There is a simulation (written in Java) included by default. Remove that.
-// rm -rf ./gatling/user-files/simulations/*
-// echo "removed included-by-default Java simulations in ./gatling/user-files/simulations"
+val simDir = "./gatling/user-files/simulations"
+os.proc("rm", "-rf", simDir + "/computerdatabase").call()
+println("Removed included-by-default Java simulations in: " + simDir)
+println()
 
 // Place our simulation there.
-// cp src/main/scala/ch05/examples/loadSimulation.scala ./gatling/user-files/simulations/
-// echo "copied ch05 load simulation into ./gatling/user-files/simulations/"
-// echo "now start the http server in another Terminal, and then run the simulation with:"
-// echo "./runGatling.sh"
+os.proc(
+  "cp",
+  "src/main/scala/ch05/examples/loadSimulation.scala",
+  "./gatling/user-files/simulations/"
+).call()
+println("Copied ch05 load simulation into ./gatling/user-files/simulations/")
+println()
+
+println("Now start the Http server in another Terminal,")
+println("and then run the simulation with:")
+println("./runGatling.sc")

runGatling.sc

@@ -1,12 +1,34 @@
 #!/usr/bin/env -S scala-cli
+//> using dep com.lihaoyi::os-lib:0.10.2
 
 // set environment variables
-// export GATLING_URL=http://localhost:8080
-// export GATLING_USERS=1000
-// export GATLING_REQUESTS=50000
-// export GATLING_RAMP_TIME=0
-// echo "Finished setting up environment variables for Gatling simulation."
+val gatlingEnv = Map(
+  "GATLING_URL" -> "http://localhost:8080",
+  "GATLING_USERS" -> "1000",
+  "GATLING_REQUESTS" -> "50000",
+  "GATLING_RAMP_TIME" -> "0"
+)
+println("Finished setting up environment variables for Gatling simulation.")
+println()
 
 // interactively compile and run the simulation
-// echo "Now running the Gatling binary:"
-// ./gatling/bin/gatling.sh
+println("Now running the Gatling binary:")
+println()
+
+val sub = os
+  .proc("sh", os.pwd / "gatling" / "bin" / "gatling.sh")
+  .spawn(
+    env = gatlingEnv,
+    stdout = os.ProcessOutput.Readlines(println) // show script's output.
+  )
+
+// Simulate the interactivity of the script here:
+sub.waitFor(2000L) // wait for Gatling script to start and give us a prompt
+println(">>>>> Choosing option [1] to run locally!") // show input
+sub.stdin.writeLine("1") // run simulation locally
+sub.stdin.flush() // send input
+sub.waitFor(8000L) // wait for Gatling to check for updates
+println(">>>>> Providing optional name: testSim") // show input
+sub.stdin.writeLine("testSim") // give optional simulation name
+sub.stdin.flush() // send input
+sub.waitFor() // wait for simulation to fully run and finish.