Examples with Exec com.aws.greengrass.util.Exec used on opensource projects

Example 11 with Exec

use of com.aws.greengrass.util.Exec in project aws-greengrass-nucleus by aws-greengrass.

the class ShellRunnerTest method GIVEN_shell_command_WHEN_run_in_background_THEN_succeeds.

@Test
void GIVEN_shell_command_WHEN_run_in_background_THEN_succeeds() throws Exception {
    final AtomicInteger exitCode = new AtomicInteger();
    final CountDownLatch latch = new CountDownLatch(1);
    IntConsumer background = (value) -> {
        exitCode.set(value);
        latch.countDown();
    };
    final ShellRunner shellRunner = context.get(ShellRunner.class);
    try (Exec exec = shellRunner.setup("note", "echo 0", greengrassService)) {
        boolean ok = shellRunner.successful(exec, "note", background, greengrassService);
        assertTrue(ok);
        assertTrue(latch.await(2, TimeUnit.SECONDS));
        assertEquals(0, exitCode.get());
        assertFalse(exec.isRunning());
    }
}

Example 12 with Exec

use of com.aws.greengrass.util.Exec in project aws-greengrass-nucleus by aws-greengrass.

the class ShellRunnerTest method GIVEN_shell_command_WHEN_run_in_foreground_THEN_succeeds.

@Test
void GIVEN_shell_command_WHEN_run_in_foreground_THEN_succeeds() throws Exception {
    final ShellRunner shellRunner = context.get(ShellRunner.class);
    try (Exec exec = shellRunner.setup("note", "echo hi", greengrassService)) {
        boolean ok = shellRunner.successful(exec, "note", null, greengrassService);
        assertTrue(ok);
        assertFalse(exec.isRunning());
    }
}

Example 13 with Exec

use of com.aws.greengrass.util.Exec in project aws-greengrass-nucleus by aws-greengrass.

the class ShellRunnerTest method GIVEN_shell_command_that_doesnt_exist_WHEN_run_in_background_THEN_fails.

@Test
void GIVEN_shell_command_that_doesnt_exist_WHEN_run_in_background_THEN_fails() throws Exception {
    final AtomicInteger exitCode = new AtomicInteger();
    final CountDownLatch latch = new CountDownLatch(1);
    IntConsumer background = (value) -> {
        exitCode.set(value);
        latch.countDown();
    };
    final ShellRunner shellRunner = context.get(ShellRunner.class);
    try (Exec exec = shellRunner.setup("note", "there_is_no_such_program", greengrassService)) {
        boolean ok = shellRunner.successful(exec, "note", background, greengrassService);
        // when runs in background, always return true
        assertTrue(ok);
        assertTrue(latch.await(2, TimeUnit.SECONDS));
        assertEquals(Platform.getInstance().exitCodeWhenCommandDoesNotExist(), exitCode.get());
        assertFalse(exec.isRunning());
    }
}

Example 14 with Exec

use of com.aws.greengrass.util.Exec in project aws-greengrass-nucleus by aws-greengrass.

the class ShellRunnerTest method GIVEN_shell_command_that_doesnt_exist_WHEN_run_in_foreground_THEN_fails.

@Test
void GIVEN_shell_command_that_doesnt_exist_WHEN_run_in_foreground_THEN_fails() throws Exception {
    final ShellRunner shellRunner = context.get(ShellRunner.class);
    try (Exec exec = shellRunner.setup("note", "there_is_no_such_program", greengrassService)) {
        boolean ok = shellRunner.successful(exec, "note", null, greengrassService);
        assertFalse(ok);
        assertFalse(exec.isRunning());
    }
}

Example 15 with Exec

use of com.aws.greengrass.util.Exec in project aws-greengrass-nucleus by aws-greengrass.

the class UnixPlatform method runCmd.

/**
 * Run a arbitrary command.
 * @param cmdStr command string
 * @param out output consumer
 * @param msg error string
 * @throws IOException IO exception
 */
public void runCmd(String cmdStr, Consumer<CharSequence> out, String msg) throws IOException {
    try (Exec exec = getInstance().createNewProcessRunner()) {
        StringBuilder output = new StringBuilder();
        StringBuilder error = new StringBuilder();
        Optional<Integer> exit = exec.withExec(cmdStr.split(" ")).withShell().withOut(o -> {
            out.accept(o);
            output.append(o);
        }).withErr(error::append).exec();
        if (!exit.isPresent() || exit.get() != 0) {
            throw new IOException(String.format(String.format("%s - command: %s, output: %s , error: %s ", msg, cmdStr, output.toString(), error.toString())));
        }
    } catch (InterruptedException | IOException e) {
        throw new IOException(String.format("%s , command : %s", msg, cmdStr), e);
    }
}