adding more (debug) logs to make ccm more (new) user friendly …

ccmlib/cluster.py

@@ -762,6 +762,7 @@ def _update_config(self):
         extension.append_to_cluster_config(self, config_map)
         with open(filename, 'w') as f:
             yaml.safe_dump(config_map, f)
+            common.debug("{} was updated.".format(filename))
 
     def __update_pids(self, started):
         for node, p, _ in started:

ccmlib/cluster_factory.py

@@ -18,6 +18,7 @@ class ClusterFactory():
     def load(path, name):
         cluster_path = os.path.join(path, name)
         filename = os.path.join(cluster_path, 'cluster.conf')
+        common.debug("Loading {} ...".format(filename))
         with open(filename, 'r') as f:
             data = yaml.safe_load(f)
         try:

ccmlib/cmds/command.py

@@ -71,6 +71,8 @@ def validate(self, parser, options, args, cluster_name=False, node_name=False, l
         else:
             self.path = options.config_dir
 
+        common.debug("Using ccm data and config path {} ...".format(self.path))
+
         if cluster_name:
             if len(args) == 0:
                 print_('Missing cluster name', file=sys.stderr)

ccmlib/common.py

@@ -181,8 +181,10 @@ def get_user_home():
 def get_config():
     config_path = os.path.join(get_default_path(), CONFIG_FILE)
     if not os.path.exists(config_path):
+        common.debug("Config file does not exist at {}.".format(config_path))
         return {}
 
+    common.debug("Loading config file from {} ...".format(config_path))
     with open(config_path, 'r') as f:
         return yaml.safe_load(f)
 

ccmlib/repository.py

@@ -35,8 +35,12 @@
 GITHUB_REPO = "https://github.com/apache/cassandra.git"
 GITHUB_TAGS = "https://api.github.com/repos/apache/cassandra/git/refs/tags"
 CCM_CONFIG = ConfigParser.RawConfigParser()
-CCM_CONFIG.read(os.path.join(os.path.expanduser("~"), ".ccm", "config"))
-
+config_path = os.path.join(os.path.expanduser("~"), ".ccm", "config")
+read_ok = CCM_CONFIG.read(config_path)
+if len(read_ok) == 0:
+    common.debug("Config file {} was not found or could not be read.".format(config_path))
+else:
+    common.debug("Config file {} was successfully read.".format(config_path))
 
 def setup(version, verbose=False):
     binary = True
@@ -112,6 +116,8 @@ def setup(version, verbose=False):
                 return (version_directory(version), None)
             else:
                 raise e
+    else:
+        common.debug("Cassandra version was found in {}, no need to download.".format(cdir))
     return (cdir, version)
 
 
@@ -289,6 +295,7 @@ def download_dse_version(version, username, password, verbose=False):
         tar.extractall(path=__get_dir())
         tar.close()
         target_dir = os.path.join(__get_dir(), version)
+        common.debug("Moving extracted files to {} ...".format(target_dir))
         if os.path.exists(target_dir):
             rmdirs(target_dir)
         shutil.move(os.path.join(__get_dir(), dir), target_dir)
@@ -319,6 +326,7 @@ def download_opscenter_version(version, username, password, target_version, verb
         tar.extractall(path=__get_dir())
         tar.close()
         target_dir = os.path.join(__get_dir(), target_version)
+        common.debug("Moving extracted files to {} ...".format(target_dir))
         if os.path.exists(target_dir):
             rmdirs(target_dir)
         shutil.move(os.path.join(__get_dir(), dir), target_dir)
@@ -353,6 +361,7 @@ def download_version(version, url=None, verbose=False, binary=False):
         tar.extractall(path=__get_dir())
         tar.close()
         target_dir = os.path.join(__get_dir(), version)
+        common.debug("Moving extracted files to {} ...".format(target_dir))
         if os.path.exists(target_dir):
             rmdirs(target_dir)
         shutil.move(os.path.join(__get_dir(), dir), target_dir)
@@ -476,10 +485,12 @@ def version_directory(version):
         try:
             validate_install_dir(dir)
             return dir
-        except ArgumentError:
+        except ArgumentError as e:
+            common.warning(e)
             rmdirs(dir)
             return None
     else:
+        common.debug("Directory {} for Cassandra version {} was not found.".format(dir, version))
         return None