Initial implementation of blender benchmark addon

Just some glue logic to query progress and results from benchmark.

Needed to move files around, so oth standalone and addon are happy.

benchmark/foundation/progress.py

@@ -1,34 +1,77 @@
 import shutil
 import sys
 
-from foundation import logger
+from . import logger
+
+class DefaultProgressProvider:
+    """
+    Default progress provider implementation, which draws progress
+    bar in the console, unless current logging is set to evrbose mode.
+    """
+    def progress(self, count, total, prefix="", suffix=""):
+        if logger.VERBOSE:
+            return
+
+        size = shutil.get_terminal_size((80, 20))
+
+        if prefix != "":
+            prefix = prefix + "    "
+        if suffix != "":
+            suffix = "    " + suffix
+
+        bar_len = size.columns - len(prefix) - len(suffix) - 10
+        filled_len = int(round(bar_len * count / float(total)))
+
+        percents = round(100.0 * count / float(total), 1)
+        bar = '=' * filled_len + '-' * (bar_len - filled_len)
+
+        sys.stdout.write('%s[%s] %s%%%s\r' % (prefix, bar, percents, suffix))
+        sys.stdout.flush()
+
+    def clear(self):
+      if logger.VERBOSE:
+          return
+
+      size = shutil.get_terminal_size((80, 20))
+      sys.stdout.write(" " * size.columns + "\r")
+      sys.stdout.flush()
+
+    def step(self, step_name):
+        pass
+
+
+PROGRESS_PROVIDER = DefaultProgressProvider()
 
 
 def progress(count, total, prefix="", suffix=""):
-    if logger.VERBOSE:
-        return
-
-    size = shutil.get_terminal_size((80, 20))
-
-    if prefix != "":
-        prefix = prefix + "    "
-    if suffix != "":
-        suffix = "    " + suffix
-
-    bar_len = size.columns - len(prefix) - len(suffix) - 10
-    filled_len = int(round(bar_len * count / float(total)))
-
-    percents = round(100.0 * count / float(total), 1)
-    bar = '=' * filled_len + '-' * (bar_len - filled_len)
-
-    sys.stdout.write('%s[%s] %s%%%s\r' % (prefix, bar, percents, suffix))
-    sys.stdout.flush()
+    """
+    Report new progress status of the current task.
+    """
+    PROGRESS_PROVIDER.progress(count, total, prefix, suffix)
 
 
 def progressClear():
-    if logger.VERBOSE:
-        return
+    """
+    Clear all possible progress bar lines in the ocnsole.
+    """
+    PROGRESS_PROVIDER.clear()
 
-    size = shutil.get_terminal_size((80, 20))
-    sys.stdout.write(" " * size.columns + "\r")
-    sys.stdout.flush()
+def step(step_name):
+    PROGRESS_PROVIDER.step(step_name)
+
+
+def setProvider(provider):
+    """
+    Override progress provider with a given name.
+    Is used by glue logic to hijack progress and do smart things.
+    """
+    global PROGRESS_PROVIDER
+    PROGRESS_PROVIDER = provider
+
+
+def restoreDefaultProvider():
+    """
+    Restore default progress provider.
+    """
+    global PROGRESS_PROVIDER
+    PROGRESS_PROVIDER = DefaultProgressProvider()