Allow arbitrary Scylla versions in CcmBridge (#417)

Until now, the versions passed through ccm.version property would be
considered invalid if cannot be parsed to one of the known formats.
Now if the parsing fails, the property will be passed to ccm commands
"as is" which ccm will treat as directory name in local repository.
Numbered version will then be fetched through setting up a makeshift cluster
and asking ccm for it.

test-infra/src/main/java/com/datastax/oss/driver/api/testinfra/ccm/CcmBridge.java

@@ -32,6 +32,7 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.io.StringWriter;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
@@ -61,17 +62,18 @@ public class CcmBridge implements AutoCloseable {
 
   private static final Logger LOG = LoggerFactory.getLogger(CcmBridge.class);
 
-  public static final Version VERSION =
-      Objects.requireNonNull(Version.parse(System.getProperty("ccm.version", "4.0.0")));
+  public static final Boolean SCYLLA_ENABLEMENT = Boolean.getBoolean("ccm.scylla");
+
+  public static final String CCM_VERSION_PROPERTY = System.getProperty("ccm.version", "4.0.0");
+
+  public static final Version VERSION = Objects.requireNonNull(parseCcmVersion());
 
   public static final String INSTALL_DIRECTORY = System.getProperty("ccm.directory");
 
   public static final String BRANCH = System.getProperty("ccm.branch");
 
   public static final Boolean DSE_ENABLEMENT = Boolean.getBoolean("ccm.dse");
 
-  public static final Boolean SCYLLA_ENABLEMENT = Boolean.getBoolean("ccm.scylla");
-
   public static final Boolean SCYLLA_ENTERPRISE =
       String.valueOf(VERSION.getMajor()).matches("\\d{4}");
 
@@ -232,6 +234,45 @@ private static boolean isWindows() {
     return System.getProperty("os.name", "").toLowerCase(Locale.US).contains("win");
   }
 
+  private static Version parseCcmVersion() {
+    String versionString = CCM_VERSION_PROPERTY;
+    Version result = null;
+    try {
+      result = Version.parse(versionString);
+      return result;
+    } catch (IllegalArgumentException ex) {
+      LOG.warn(
+          "Failed to parse ccm.version property \'{}\' as Version instance. Attempting to fetch it through \'ccm node versionfrombuild\'",
+          versionString);
+    }
+    Path configDir = null;
+    try {
+      configDir = Files.createTempDirectory("ccmParseVer");
+      configDir.toFile().deleteOnExit();
+      execute(
+          CommandLine.parse(
+              String.format(
+                  "ccm create get_version -n 1 %s --version %s --config-dir=%s",
+                  (SCYLLA_ENABLEMENT ? "--scylla" : " "), versionString, configDir)));
+      String output =
+          execute(
+              CommandLine.parse(
+                  String.format("ccm node1 versionfrombuild --config-dir=%s", configDir)));
+      result = Version.parse(output.trim());
+      LOG.info("Cluster reports that {} corresponds to version {}", versionString, result);
+    } catch (IOException e) {
+      throw new RuntimeException(e);
+    } finally {
+      try {
+        if (configDir != null) {
+          execute(CommandLine.parse("ccm remove get_version --config-dir=" + configDir));
+        }
+      } catch (Exception ignored) {
+      }
+    }
+    return result;
+  }
+
   public Optional<Version> getScyllaVersion() {
     return SCYLLA_ENABLEMENT ? Optional.of(VERSION) : Optional.empty();
   }
@@ -264,7 +305,15 @@ public Version getCassandraVersion() {
     }
   }
 
-  private String getCcmVersionString(Version version) {
+  private String getCcmVersionString(String propertyString) {
+    Version version = null;
+    try {
+      version = Version.parse(propertyString);
+    } catch (IllegalArgumentException ex) {
+      // In case it's not a recognized version pattern, use raw string.
+      // If parseCcmVersion has not failed execution it should be usable.
+      return propertyString;
+    }
     if (SCYLLA_ENABLEMENT) {
       // Scylla OSS versions before 5.1 had RC versioning scheme of 5.0.rc3.
       // Scylla OSS versions after (and including 5.1) have RC versioning of 5.1.0-rc3.
@@ -307,7 +356,7 @@ public void create() {
         createOptions.add("-v git:" + BRANCH.trim().replaceAll("\"", ""));
 
       } else {
-        createOptions.add("-v " + getCcmVersionString(VERSION));
+        createOptions.add("-v " + getCcmVersionString(CCM_VERSION_PROPERTY));
       }
       if (DSE_ENABLEMENT) {
         createOptions.add("--dse");
@@ -497,21 +546,25 @@ private void executeCheckLogError() {
     execute(CommandLine.parse(command));
   }
 
-  private void execute(CommandLine cli) {
-    LOG.info("Executing: " + cli);
+  private static String execute(CommandLine cli) {
+    Logger logger = CcmBridge.LOG;
+    logger.info("Executing: " + cli);
     ExecuteWatchdog watchDog = new ExecuteWatchdog(TimeUnit.MINUTES.toMillis(10));
+    StringWriter sw = new StringWriter();
     try (LogOutputStream outStream =
             new LogOutputStream() {
               @Override
               protected void processLine(String line, int logLevel) {
-                LOG.info("ccmout> {}", line);
+                logger.info("ccmout> {}", line);
+                sw.append(line).append(System.lineSeparator());
               }
             };
         LogOutputStream errStream =
             new LogOutputStream() {
               @Override
               protected void processLine(String line, int logLevel) {
-                LOG.error("ccmerr> {}", line);
+                logger.error("ccmerr> {}", line);
+                sw.append(line).append(System.lineSeparator());
               }
             }) {
       Executor executor = new DefaultExecutor();
@@ -521,7 +574,8 @@ protected void processLine(String line, int logLevel) {
 
       int retValue = executor.execute(cli, ENVIRONMENT_MAP);
       if (retValue != 0) {
-        LOG.error("Non-zero exit code ({}) returned from executing ccm command: {}", retValue, cli);
+        logger.error(
+            "Non-zero exit code ({}) returned from executing ccm command: {}", retValue, cli);
       }
     } catch (IOException ex) {
       if (watchDog.killedProcess()) {
@@ -530,6 +584,7 @@ protected void processLine(String line, int logLevel) {
         throw new RuntimeException("The command '" + cli + "' failed to execute", ex);
       }
     }
+    return sw.toString();
   }
 
   @Override