init

examples/stream_output.v

@@ -0,0 +1,28 @@
+import io.string_reader
+import runcmd
+
+fn main() {
+	// Prepare command.
+	mut cmd := runcmd.new('sh', '-c', r'for i in {1..5}; do echo line $i; sleep .5; done; echo finish!')
+
+	// This is required to captute standart I/O streams.
+	cmd.redirect_stdio = true
+
+	// Start child process.
+	pid := cmd.start()!
+	println('Child process started with pid ${pid}')
+
+	// Setup StringReader with stdout input. Note the cmd.stdout()! call, it
+	// returns the io.Reader interface and reads child process stdout file descriptor.
+	mut reader := string_reader.StringReader.new(reader: cmd.stdout()!)
+
+	// Read sdtout line by line until EOF.
+	for {
+		line := reader.read_line() or { break }
+		println('Read: ${line}')
+	}
+
+	cmd.wait()! // Wait to child process completed.
+
+	println('Child state: ${cmd.state}')
+}