protected void runAnt()

in buildSrc/src/main/groovy/org/elasticsearch/hadoop/gradle/buildtools/AntFixture.groovy [94:168]
64 lines of code
12 McCabe index (conditional complexity)

    protected void runAnt(AntBuilder ant) {
        // reset everything
        getFileSystemOperations().delete {
            it.delete(baseDir)
        }
        cwd.mkdirs()
        final String realExecutable
        final List<Object> realArgs = new ArrayList<>()
        final Map<String, Object> realEnv = environment
        // We need to choose which executable we are using. In shell mode, or when we
        // are spawning and thus using the wrapper script, the executable is the shell.
        if (useShell || spawn) {
            if (Os.isFamily(Os.FAMILY_WINDOWS)) {
                realExecutable = 'cmd'
                realArgs.add('/C')
                realArgs.add('"') // quote the entire command
            } else {
                realExecutable = 'sh'
            }
        } else {
            realExecutable = executable
            realArgs.addAll(arguments)
        }
        if (spawn) {
            writeWrapperScript(executable)
            realArgs.add(wrapperScript)
            realArgs.addAll(arguments)
        }
        if (Os.isFamily(Os.FAMILY_WINDOWS) && (useShell || spawn)) {
            realArgs.add('"')
        }
        commandString.eachLine { line -> logger.info(line) }

        ant.exec(executable: realExecutable, spawn: spawn, dir: cwd, taskname: name) {
            realEnv.each { key, value -> env(key: key, value: value) }
            realArgs.each { arg(value: it) }
        }

        String failedProp = "failed${name}"
        // first wait for resources, or the failure marker from the wrapper script
        ant.waitfor(maxwait: maxWaitInSeconds, maxwaitunit: 'second', checkevery: '500', checkeveryunit: 'millisecond', timeoutproperty: failedProp) {
            or {
                resourceexists {
                    file(file: failureMarker.toString())
                }
                and {
                    resourceexists {
                        file(file: pidFile.toString())
                    }
                    resourceexists {
                        file(file: portsFile.toString())
                    }
                }
            }
        }

        if (ant.project.getProperty(failedProp) || failureMarker.exists()) {
            fail("Failed to start ${name}")
        }

        // the process is started (has a pid) and is bound to a network interface
        // so now evaluates if the waitCondition is successful
        // TODO: change this to a loop?
        boolean success
        try {
            success = waitCondition(this, ant)
        } catch (Exception e) {
            String msg = "Wait condition caught exception for ${name}"
            logger.error(msg, e)
            fail(msg, e)
        }
        if (success == false) {
            fail("Wait condition failed for ${name}")
        }
    }