blob: 89d7bbcaa842722af81214c5d8567668095bc42f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
package org.perl8.test
import scala.concurrent.Await
import scala.concurrent.duration.Duration
import scala.concurrent.ExecutionContext.Implicits.global
import scala.concurrent.Future
import scala.concurrent.Future._
import scala.annotation.tailrec
class ExternalTest (cmdLine: String*) extends Test {
def runTests (raw: Boolean): Int = {
val processBuilder = new ProcessBuilder(cmdLine: _*)
// Ensure that if stdout and stderr are both pointing to the same place (a
// terminal or file or something) that they remain synchronized. This is
// only possible if the endpoint they are streaming to is the same place
// underneath, with no extra processing in between. (This is safe because
// stdout is typically line-buffered, and we only ever output a line at a
// time when writing TAP, so in theory, buffering of the underlying file
// descriptor shouldn't make a difference here)
if (Console.out eq System.out) {
processBuilder.redirectOutput(ProcessBuilder.Redirect.INHERIT)
}
if (Console.err eq System.err) {
processBuilder.redirectError(ProcessBuilder.Redirect.INHERIT)
}
val process = processBuilder.start
val streams = Seq(
Console.out -> process.getInputStream,
Console.err -> process.getErrorStream
)
val listeners = streams.map { case (out, in) =>
Future {
val buf = new Array[Byte](1024)
@tailrec
def read {
val bytes = in.read(buf)
if (bytes >= 0) {
out.print(new String(buf.take(bytes)))
read
}
}
read
true
}
}
val exitCode = process.waitFor
Await.ready(Future.sequence(listeners), Duration.Inf)
exitCode
}
}
|
